| Portsmouth Rhode Island
Weather Almanac |
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| Friday, December 28, 2018 |
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| Cloudy, Heavy Rain and Fog, Windy, Much Warmer |
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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 28, 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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15 |
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39 |
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+15 |
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56 |
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in |
2011 |
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15 |
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in |
2017 |
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| Minimum
Temperature |
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34 |
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9 |
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24 |
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+10 |
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43 |
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in |
2008 |
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3 |
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in |
1905 |
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| Average Temperature |
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44 |
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12 |
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32 |
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+12 |
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48 |
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in |
2008 |
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12 |
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in |
2017 |
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| Precipitation |
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1.19 |
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.00 |
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.13 |
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+1.06 |
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2.75 |
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in |
1967 |
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| One Hour |
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.26 |
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.00 |
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.41 |
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in |
1967 |
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| Snow |
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0.0 |
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0.0 |
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0.3 |
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-0.3 |
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5.6 |
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in |
1990 |
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| Snow
Depth |
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0 |
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0 |
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15 |
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in |
1947 |
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| HDD |
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21 |
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53 |
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33 |
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-12 |
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53 |
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in |
2017 |
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17 |
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in |
2008 |
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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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2 |
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31 |
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+24 |
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54 |
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in |
2018 |
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2 |
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in |
2017 |
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| Minimum
Dew Point |
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30 |
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-9 |
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14 |
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+16 |
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36 |
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in |
2008 |
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-9 |
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in |
2017 |
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| Average Dew Point |
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42 |
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-4 |
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22 |
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+20 |
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44 |
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in |
2008 |
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-4 |
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in |
2017 |
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| Maximum Humidity |
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100% |
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60% |
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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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46% |
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in |
1952 |
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| Minimum
Humidity |
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76% |
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35% |
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55% |
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+21% |
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87% |
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in |
1959 |
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18% |
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in |
2003 |
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| Average Humidity |
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88% |
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48% |
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70% |
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+18% |
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93% |
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in |
1961 |
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44% |
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in |
1991 |
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| Maximum Barometer |
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30.54 |
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30.45 |
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30.18 |
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+00.36 |
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30.78 |
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in |
1992 |
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29.63 |
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in |
1976 |
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| Minimum
Barometer |
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29.78 |
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30.33 |
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29.85 |
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-00.07 |
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30.58 |
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in |
1992 |
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29.20 |
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in |
1969 |
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| Average Barometer |
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30.16 |
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30.39 |
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30.01 |
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+00.15 |
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30.68 |
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in |
1992 |
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29.44 |
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in |
1969 |
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| Average Wind |
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13.8 |
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14.8 |
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8.1 |
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+5.7 |
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17.6 |
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in |
1969 |
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2.7 |
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in |
1958 |
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| Direction |
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SSE |
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WNW |
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WNW |
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NW |
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SSW |
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| High Wind Gust |
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38 |
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33 |
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26 |
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+12 |
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53 |
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in |
1969 |
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9 |
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in |
2003 |
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| Direction |
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S |
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WNW |
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WNW |
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NW |
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N |
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| High Heat Index |
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| Wind Chill |
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29 |
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-9 |
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15 |
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+14 |
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-11 |
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in |
1952 |
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| Maximum Water Temp |
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42.6 |
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39.3 |
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43.6 |
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-1.0 |
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50.4 |
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in |
2015 |
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38.8 |
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in |
2010 |
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| Minimum
Water Temp |
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39.9 |
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35.6 |
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41.2 |
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-1.3 |
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47.0 |
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in |
2015 |
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34.9 |
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in |
2000 |
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| Average Water Temp |
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41.3 |
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37.5 |
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42.4 |
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-1.2 |
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48.7 |
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in |
2015 |
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37.5 |
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in |
2017 |
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| Sunrise/ AM Twilight |
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7:11:03 AM |
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6:39:49 AM |
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| Sunset /
PM Twilight |
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4:23:22 PM |
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4:54:36 PM |
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| Length Of Day |
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9:12:19 |
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| Special Conditions |
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Dense Fog |
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| Comments |
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December 28, 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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43.0 |
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40.3 |
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42.4 |
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+0.5 |
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54.8 |
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in |
2015 |
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30.4 |
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in |
1989 |
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| Avg
Minimum Temperature |
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30.3 |
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28.3 |
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28.6 |
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+1.7 |
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42.3 |
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in |
2015 |
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14.1 |
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in |
1989 |
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| Average Temperature |
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36.6 |
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34.3 |
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35.5 |
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+1.1 |
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48.5 |
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in |
2015 |
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22.3 |
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in |
1989 |
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| Total
Precipitation |
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3.85 |
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2.25 |
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3.96 |
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-.11 |
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9.28 |
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in |
1936 |
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.56 |
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in |
1955 |
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| Total Snow |
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0.2 |
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6.3 |
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6.7 |
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-6.5 |
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21.7 |
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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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788 |
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852 |
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820 |
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-32 |
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1191 |
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in |
1989 |
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452 |
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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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35.4 |
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32.1 |
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34.4 |
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+1.1 |
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49.8 |
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in |
2015 |
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15.1 |
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in |
1989 |
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| Avg
Minimum Dew Point |
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20.8 |
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18.1 |
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17.6 |
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+3.2 |
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36.8 |
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in |
2015 |
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-1.3 |
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in |
1989 |
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| Average Dew Point |
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28.1 |
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25.1 |
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25.5 |
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+2.6 |
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43.3 |
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in |
2015 |
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6.9 |
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in |
1989 |
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December 28, 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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53.08 |
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41.36 |
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47.81 |
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+5.27 |
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65.49 |
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in |
1983 |
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27.66 |
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in |
1965 |
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| Total
Snow (since Jul 1 18) |
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4.4 |
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6.3 |
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7.8 |
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-3.4 |
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22.9 |
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in |
1904 |
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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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1848 |
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1649 |
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1852 |
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-4 |
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2375 |
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in |
1904 |
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1247 |
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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 28, 2018 |
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| Climate Weather for December 28 |
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| Weather History For December 28 |
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| Weather Calendar |
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