| Portsmouth Rhode Island Weather Almanac |
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| Saturday,
January 18, 2025 |
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| Mostly Cloudy
early then Cloudy, Heavy Afternoon Rain and Fog, Windy & Much Warmer |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2025 |
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January 18, 2025 |
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Record |
|
Record |
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| Observed Daily Data |
|
2025 |
|
2024 |
|
Norm |
|
Depart |
|
Highest |
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Lowest |
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| Maximum Temperature |
|
48 |
|
30 |
|
37 |
|
+11 |
|
58 |
|
in |
1990 |
|
11 |
|
in |
1982 |
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| Minimum
Temperature |
|
30 |
|
19 |
|
23 |
|
+7 |
|
46 |
|
in |
1915 |
|
-9 |
|
in |
1982 |
|
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| Average Temperature |
|
39 |
|
25 |
|
30 |
|
+9 |
|
50 |
|
in |
1990 |
|
1 |
|
in |
1982 |
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| Month Avg Max Temperature |
|
36.2 |
|
40.1 |
|
38.7 |
|
-2.5 |
|
46.9 |
|
in |
2007 |
|
24.7 |
|
in |
1981 |
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| Month Avg
Min Temperature |
|
24.7 |
|
27.2 |
|
24.9 |
|
-0.2 |
|
33.4 |
|
in |
2007 |
|
8.1 |
|
in |
1981 |
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| Month Average
Temperature |
|
30.7 |
|
33.8 |
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31.9 |
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-1.2 |
|
40.3 |
|
in |
2007 |
|
16.7 |
|
in |
1981 |
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| High Heat Index |
|
76 |
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|
76 |
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in |
2024 |
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| Low Wind
Chill |
|
25 |
|
6 |
|
10 |
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+15 |
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|
-31 |
|
in |
1982 |
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| Heating Degree Days |
|
26 |
|
40 |
|
35 |
|
-9 |
|
64 |
|
in |
1982 |
|
15 |
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in |
1990 |
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| Month Heating DD |
|
617 |
|
562 |
|
595 |
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+22 |
|
870 |
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in |
1981 |
|
445 |
|
in |
2007 |
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| Season
Heating DD |
|
2269 |
|
2242 |
|
2465 |
|
-196 |
|
3201 |
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in |
1981 |
|
1871 |
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in |
2016 |
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| Cooling Degree Days |
|
0 |
|
0 |
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#REF! |
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#REF! |
|
0 |
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in |
1900 |
|
0 |
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in |
All |
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| Month Cooling DD |
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| Year Cooling DD |
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| Maximum Dew Point |
|
47 |
|
24 |
|
29 |
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+18 |
|
54 |
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in |
2006 |
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-9 |
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in |
1977 |
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| Minimum
Dew Point |
|
26 |
|
7 |
|
13 |
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+13 |
|
35 |
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in |
2017 |
|
-24 |
|
in |
1982 |
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| Average Dew Point |
|
37 |
|
16 |
|
21 |
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+16 |
|
41 |
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in |
1999 |
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-15 |
|
in |
1982 |
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| Month Avg Max Dew Point |
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25.6 |
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33.2 |
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31.3 |
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-5.7 |
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41.9 |
|
in |
2007 |
|
11.8 |
|
in |
1981 |
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| Month Avg
Min Dew Point |
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16.2 |
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19.3 |
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15.2 |
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+1.0 |
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28.4 |
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in |
2023 |
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-7.4 |
|
in |
1981 |
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| Month Average Dew Point |
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21.2 |
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25.2 |
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23.3 |
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-2.2 |
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34.2 |
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in |
2023 |
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2.2 |
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in |
1981 |
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| Precipitation |
|
.69 |
|
.00 |
|
.12 |
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+.57 |
|
2.05 |
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in |
1915 |
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| One Hour
Rain |
|
.26 |
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.00 |
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|
.47 |
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in |
1994 |
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| Half Hour
Rain |
|
.16 |
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.00 |
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.31 |
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in |
2006 |
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| Hourly Rain Rate |
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.86 |
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.00 |
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5.43 |
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in |
2006 |
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| Month Precipitation |
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1.15 |
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4.93 |
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2.18 |
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-1.03 |
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7.08 |
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in |
1979 |
|
.28 |
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in |
1984 |
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| Year Precipitation |
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1.15 |
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4.93 |
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2.18 |
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-1.03 |
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7.08 |
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in |
1979 |
|
.28 |
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in |
1984 |
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| Snow |
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0.0 |
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0.0 |
|
0.3 |
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-0.3 |
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6.3 |
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in |
2009 |
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0.0 |
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in |
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| Snow Depth |
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0 |
|
1 |
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1.4 |
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-1 |
|
13 |
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in |
1912 |
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0 |
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in |
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| Month Snow |
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0.4 |
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5.6 |
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5.4 |
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-5.0 |
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25.8 |
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in |
1996 |
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0.0 |
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in |
2007 |
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| Season Snow |
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0.6 |
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5.7 |
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12.5 |
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-11.9 |
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41.6 |
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in |
1996 |
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0.2 |
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in |
1914 |
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January
18, 2025 |
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|
Record |
Record |
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| Observed Daily Data |
|
2025 |
|
2024 |
|
Norm |
|
Depart |
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Highest |
Lowest |
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| Maximum Humidity |
|
98% |
|
83% |
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84% |
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+14% |
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100% |
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in |
2011 |
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50% |
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in |
1977 |
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| Minimum
Humidity |
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77% |
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55% |
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54% |
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+23% |
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94% |
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in |
2017 |
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29% |
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in |
2013 |
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| Average Humidity |
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88% |
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69% |
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69% |
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+18% |
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96% |
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in |
2017 |
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42% |
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in |
1962 |
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| Maximum Barometer |
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30.15 |
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30.16 |
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30.14 |
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+00.01 |
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30.74 |
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in |
2007 |
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29.54 |
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in |
1958 |
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| Minimum
Barometer |
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29.72 |
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30.03 |
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29.77 |
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-00.05 |
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30.30 |
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in |
1962 |
|
29.25 |
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in |
2022 |
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| Average Barometer |
|
29.94 |
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30.10 |
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29.95 |
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-00.02 |
|
30.43 |
|
in |
1974 |
|
29.42 |
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in |
1958 |
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| Average
Wind |
|
9.8 |
|
8.8 |
|
8.5 |
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+1.3 |
|
16.6 |
|
in |
2006 |
|
1.6 |
|
in |
1965 |
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| Direction |
|
S |
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W |
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WNW |
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SSE |
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|
W |
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| High Wind
Gust |
|
29 |
|
25 |
|
27 |
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+2 |
|
55 |
|
in |
1999 |
|
12 |
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in |
1985 |
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| Direction |
|
S |
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WSW |
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WNW |
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S |
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NW |
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| Maximum Water Temp |
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39.9 |
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39.6 |
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40.7 |
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-0.8 |
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48.2 |
|
in |
2007 |
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36.0 |
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in |
2018 |
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| Minimum
Water Temp |
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38.3 |
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37.9 |
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37.8 |
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+0.5 |
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43.2 |
|
in |
2007 |
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33.6 |
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in |
2018 |
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| Average Water Temp |
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39.1 |
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38.8 |
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39.2 |
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-0.1 |
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45.7 |
|
in |
2007 |
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34.8 |
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in |
2018 |
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| Sunrise/ AM Twilight |
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7:07:37 AM |
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6:37:22 AM |
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| Sunset /
PM Twilight |
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4:43:20 PM |
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5:14:03 PM |
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| Length Of Day |
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16:43:56 |
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| Special
Conditions |
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Fog |
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| Comments |
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| Hour-by-Hour Weather For January 18, 2025 |
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| Climate Weather for January 18 |
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| Weather History For January 18 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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