| Portsmouth Rhode Island
Weather Almanac |
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| Saturday, December 22, 2018 |
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| Mostly Cloudy, Very Light Rain and Fog AM then Partly Cloudy,
Windy, Continued Very Warm |
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| Climate
Normal Period |
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Climate Record Period |
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| 1981- 2010 |
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1893 - 2018 |
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December 22, 2018 |
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Record |
Record |
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| Observed Daily Data |
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Observed |
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2017 |
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Normal |
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Depart |
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Highest |
Lowest |
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| Maximum Temperature |
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54 |
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36 |
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40 |
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+14 |
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59 |
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in |
2013 |
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17 |
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in |
1989 |
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| Minimum
Temperature |
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36 |
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27 |
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26 |
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+10 |
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53 |
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in |
2015 |
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4 |
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in |
1989 |
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| Average Temperature |
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45 |
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32 |
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33 |
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+12 |
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56 |
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in |
2015 |
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11 |
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in |
1989 |
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| Precipitation |
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.02 |
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.03 |
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.13 |
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-.11 |
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1.49 |
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in |
1969 |
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| One Hour |
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.01 |
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.01 |
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.48 |
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in |
1984 |
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| Snow |
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0.0 |
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T |
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0.3 |
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-0.3 |
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3.3 |
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in |
1962 |
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| Snow
Depth |
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0 |
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0 |
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19 |
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in |
2009 |
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| HDD |
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20 |
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33 |
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32 |
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-12 |
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54 |
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in |
1989 |
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9 |
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in |
2015 |
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| CDD |
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0 |
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0 |
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0 |
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+0 |
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0 |
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in |
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| Maximum Dew Point |
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54 |
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34 |
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32 |
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+22 |
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57 |
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in |
2015 |
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-5 |
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in |
1989 |
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| Minimum
Dew Point |
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26 |
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12 |
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16 |
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+10 |
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50 |
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in |
2015 |
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-12 |
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in |
1989 |
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| Average Dew Point |
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40 |
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23 |
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24 |
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+16 |
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54 |
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in |
2015 |
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-9 |
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in |
1989 |
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| Maximum Humidity |
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100% |
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99% |
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84% |
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+16% |
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100% |
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in |
2018 |
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52% |
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in |
1989 |
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| Minimum
Humidity |
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67% |
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47% |
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56% |
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+11% |
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93% |
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in |
1990 |
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20% |
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in |
1988 |
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| Average Humidity |
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84% |
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73% |
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70% |
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+14% |
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97% |
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in |
1990 |
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42% |
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in |
1971 |
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| Maximum Barometer |
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29.88 |
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30.39 |
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30.17 |
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-00.29 |
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30.72 |
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in |
1971 |
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29.68 |
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in |
2012 |
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| Minimum
Barometer |
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29.27 |
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30.16 |
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29.81 |
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-00.54 |
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30.47 |
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in |
2007 |
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28.97 |
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in |
1969 |
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| Average Barometer |
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29.58 |
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30.28 |
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29.99 |
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-00.42 |
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30.56 |
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in |
1980 |
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29.38 |
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in |
1969 |
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| Average Wind |
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14.5 |
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4.9 |
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8.5 |
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+6.0 |
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16.7 |
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in |
1952 |
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1.8 |
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in |
1994 |
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| Direction |
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WNW |
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NE |
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WNW |
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N |
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SSW |
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| High Wind Gust |
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35 |
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14 |
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27 |
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+8 |
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49 |
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in |
2012 |
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10 |
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in |
1994 |
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| Direction |
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W |
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ENE |
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WNW |
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NNW |
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SSW |
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| High Heat Index |
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| Wind Chill |
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27 |
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21 |
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17 |
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+10 |
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-16 |
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in |
1989 |
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| Maximum Water Temp |
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45.0 |
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44.1 |
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44.6 |
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+0.4 |
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50.7 |
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in |
2011 |
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40.9 |
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in |
2005 |
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| Minimum
Water Temp |
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43.0 |
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41.0 |
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42.2 |
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+0.8 |
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49.5 |
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in |
2011 |
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37.6 |
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in |
2008 |
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| Average Water Temp |
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44.0 |
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42.6 |
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43.4 |
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+0.6 |
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50.1 |
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in |
2011 |
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39.3 |
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in |
2005 |
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| Sunrise/ AM Twilight |
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7:09:02 AM |
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6:37:42 AM |
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| Sunset /
PM Twilight |
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4:19:28 PM |
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4:50:47 PM |
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| Length Of Day |
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9:10:26 |
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| Special Conditions |
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Fog |
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| Comments |
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December 22, 2018 |
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Record |
Record |
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| Month-to-Date Summary |
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Observed |
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2017 |
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Normal |
Depart |
Highest |
Lowest |
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| Avg Maximum Temperature |
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43.4 |
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42.1 |
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43.2 |
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+0.2 |
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53.5 |
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in |
2015 |
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31.8 |
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in |
1904 |
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| Avg
Minimum Temperature |
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30.3 |
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29.9 |
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29.5 |
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+0.8 |
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41.3 |
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in |
2015 |
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15.5 |
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in |
1989 |
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| Average Temperature |
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36.8 |
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36.0 |
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36.3 |
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+0.5 |
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47.4 |
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in |
2015 |
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23.8 |
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in |
1989 |
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| Total
Precipitation |
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2.63 |
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1.34 |
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3.18 |
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-.55 |
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9.27 |
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in |
1936 |
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.37 |
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in |
1998 |
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| Total Snow |
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T |
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6.1 |
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4.9 |
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-4.9 |
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21.3 |
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in |
1981 |
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0.0 |
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in |
2015 |
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| Total
HDD |
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613 |
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632 |
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625 |
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-12 |
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903 |
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in |
1989 |
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380 |
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in |
2015 |
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| Total CDD |
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0 |
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0 |
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0 |
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+0 |
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807 |
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in |
2016 |
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290 |
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in |
1902 |
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| Avg Maximum Dew Point |
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36.0 |
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33.9 |
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35.2 |
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+0.8 |
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48.2 |
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in |
2015 |
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16.7 |
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in |
1989 |
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| Avg
Minimum Dew Point |
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21.1 |
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20.1 |
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18.2 |
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+2.9 |
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35.8 |
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in |
2015 |
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-1.0 |
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in |
1989 |
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| Average Dew Point |
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28.6 |
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27.0 |
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26.0 |
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+2.6 |
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42.0 |
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in |
2015 |
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7.9 |
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in |
1989 |
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December 22, 2018 |
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Record |
Record |
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| Year-to-Date Summary |
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Observed |
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2017 |
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Normal |
Depart |
Highest |
Lowest |
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| Total Precipitation |
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51.86 |
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40.45 |
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47.03 |
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+4.83 |
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65.09 |
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in |
1983 |
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27.14 |
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in |
1965 |
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| Total
Snow (since Jul 1 18) |
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4.2 |
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6.1 |
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6.0 |
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-1.8 |
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21.3 |
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in |
1898 |
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0.0 |
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in |
2015 |
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| Total HDD (since Jul 1
18) |
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1673 |
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1429 |
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1657 |
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+16 |
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2176 |
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in |
1904 |
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1175 |
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in |
2015 |
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| Total
CDD (since Jan 1) |
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775 |
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580 |
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563 |
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+212 |
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807 |
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in |
2016 |
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290 |
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in |
1902 |
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| Hour-by-Hour Weather For December 22, 2018 |
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| Climate Weather for December 22 |
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| Weather History For December 22 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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