| Portsmouth Rhode Island Weather Almanac |
|
|
|
|
|
|
|
|
|
| Friday, March
21, 2025 |
|
|
|
|
|
|
|
|
|
| Cloudy,
Morning Rain and Fog to Clear PM, Very Windy, Cooler |
|
|
|
|
|
|
|
|
|
| |
|
Climate
Normal Period |
Climate Record Period |
|
|
|
|
|
|
|
|
| |
|
1991 -
2020 |
1893 - 2025 |
|
|
|
|
|
|
|
|
| |
|
March 21, 2025 |
|
Record |
|
Record |
|
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2025 |
|
2024 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
|
|
|
|
|
|
|
| Maximum Temperature |
|
48 |
|
40 |
|
47 |
|
+1 |
|
71 |
|
in |
1921 |
|
26 |
|
in |
1912 |
|
|
|
|
|
|
|
|
|
| Minimum
Temperature |
|
41 |
|
28 |
|
32 |
|
+9 |
|
50 |
|
in |
2012 |
|
13 |
|
in |
1986 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
45 |
|
34 |
|
40 |
|
+5 |
|
60 |
|
in |
2012 |
|
23 |
|
in |
1986 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Temperature |
|
49.5 |
|
50.6 |
|
44.3 |
|
+5.2 |
|
52.0 |
|
in |
2020 |
|
31.6 |
|
in |
1916 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Temperature |
|
33.3 |
|
35.5 |
|
31.2 |
|
+2.1 |
|
36.7 |
|
in |
1973 |
|
19.8 |
|
in |
1916 |
|
|
|
|
|
|
|
|
|
| Month Average
Temperature |
|
41.8 |
|
43.2 |
|
37.7 |
|
+4.1 |
|
44.2 |
|
in |
2010 |
|
25.9 |
|
in |
1916 |
|
|
|
|
|
|
|
|
|
| High Heat Index |
|
76 |
|
|
|
|
|
|
|
76 |
|
in |
2024 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Low Wind
Chill |
|
32 |
|
16 |
|
23 |
|
+9 |
|
|
|
|
|
|
-1 |
|
in |
1986 |
|
|
|
|
|
|
|
|
|
| Heating Degree Days |
|
20 |
|
31 |
|
25 |
|
-5 |
|
42 |
|
in |
1986 |
|
5 |
|
in |
2012 |
|
|
|
|
|
|
|
|
|
| Month Heating DD |
|
488 |
|
457 |
|
589 |
|
-101 |
|
821 |
|
in |
1916 |
|
437 |
|
in |
2010 |
|
|
|
|
|
|
|
|
|
| Season
Heating DD |
|
4150 |
|
4004 |
|
4415 |
|
-265 |
|
5468 |
|
in |
1905 |
|
3649 |
|
in |
2016 |
|
|
|
|
|
|
|
|
|
| Cooling Degree Days |
|
0 |
|
0 |
|
#REF! |
|
#REF! |
|
0 |
|
in |
1900 |
|
0 |
|
in |
All |
|
|
|
|
|
|
|
|
|
| Month Cooling DD |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Year Cooling DD |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Maximum Dew Point |
|
44 |
|
24 |
|
36 |
|
+8 |
|
58 |
|
in |
2012 |
|
7 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Minimum
Dew Point |
|
19 |
|
11 |
|
21 |
|
-2 |
|
50 |
|
in |
2012 |
|
-11 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
32 |
|
18 |
|
29 |
|
+3 |
|
54 |
|
in |
2012 |
|
-2 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Dew Point |
|
38.7 |
|
41.1 |
|
33.6 |
|
+5.0 |
|
41.7 |
|
in |
2022 |
|
22.0 |
|
in |
1960 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Dew Point |
|
23.9 |
|
28.8 |
|
18.7 |
|
+5.1 |
|
29.6 |
|
in |
1983 |
|
5.7 |
|
in |
1950 |
|
|
|
|
|
|
|
|
|
| Month Average Dew Point |
|
31.5 |
|
34.9 |
|
26.5 |
|
+5.0 |
|
35.1 |
|
in |
2012 |
|
15.8 |
|
in |
1950 |
|
|
|
|
|
|
|
|
|
| Precipitation |
|
.32 |
|
.00 |
|
.15 |
|
+.17 |
|
1.78 |
|
in |
1983 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| One Hour
Rain |
|
.21 |
|
.00 |
|
|
|
|
|
.79 |
|
in |
1983 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Half Hour
Rain |
|
.11 |
|
.00 |
|
|
|
|
|
.11 |
|
in |
2025 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hourly Rain Rate |
|
.43 |
|
.00 |
|
|
|
|
|
.43 |
|
in |
2025 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Precipitation |
|
2.94 |
|
5.10 |
|
2.90 |
|
+.04 |
|
8.46 |
|
in |
1983 |
|
.08 |
|
in |
1915 |
|
|
|
|
|
|
|
|
|
| Year Precipitation |
|
8.12 |
|
14.66 |
|
10.00 |
|
-1.88 |
|
19.23 |
|
in |
1979 |
|
5.75 |
|
in |
2012 |
|
|
|
|
|
|
|
|
|
| Snow |
|
0.0 |
|
0.0 |
|
0.2 |
|
-0.2 |
|
5.3 |
|
in |
1912 |
|
0.0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Snow Depth |
|
0 |
|
0 |
|
0.5 |
|
-0.5 |
|
15 |
|
in |
1956 |
|
0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Month Snow |
|
0.0 |
|
T |
|
4.4 |
|
-4.4 |
|
27.8 |
|
in |
1956 |
|
0.0 |
|
in |
2025 |
|
|
|
|
|
|
|
|
|
| Season Snow |
|
11.9 |
|
12.7 |
|
31.7 |
|
-19.8 |
|
75.0 |
|
in |
2005 |
|
4.8 |
|
in |
1998 |
|
|
|
|
|
|
|
|
|
| |
|
March
21, 2025 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2025 |
|
2024 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Humidity |
|
99% |
|
69% |
|
87% |
|
+12% |
|
100% |
|
in |
2012 |
|
52% |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Minimum
Humidity |
|
38% |
|
36% |
|
51% |
|
-13% |
|
93% |
|
in |
2003 |
|
19% |
|
in |
1991 |
|
|
|
|
|
|
|
|
|
| Average Humidity |
|
69% |
|
53% |
|
69% |
|
-1% |
|
97% |
|
in |
2003 |
|
37% |
|
in |
1985 |
|
|
|
|
|
|
|
|
|
| Maximum Barometer |
|
29.75 |
|
30.22 |
|
30.06 |
|
-00.31 |
|
30.80 |
|
in |
2007 |
|
29.38 |
|
in |
1958 |
|
|
|
|
|
|
|
|
|
| Minimum
Barometer |
|
29.28 |
|
29.75 |
|
29.74 |
|
-00.46 |
|
30.57 |
|
in |
2007 |
|
29.03 |
|
in |
1958 |
|
|
|
|
|
|
|
|
|
| Average Barometer |
|
29.52 |
|
29.99 |
|
29.90 |
|
-00.38 |
|
30.69 |
|
in |
2007 |
|
29.21 |
|
in |
1958 |
|
|
|
|
|
|
|
|
|
| Average
Wind |
|
15.5 |
|
16.5 |
|
8.8 |
|
+6.7 |
|
18.8 |
|
in |
2008 |
|
1.8 |
|
in |
2005 |
|
|
|
|
|
|
|
|
|
| Direction |
|
NW |
|
WNW |
|
WNW |
|
|
|
WNW |
|
|
|
|
WNW |
|
|
|
|
|
|
|
|
|
|
|
|
| High
Wind Gust |
|
41 |
|
39 |
|
28 |
|
+13 |
|
45 |
|
in |
1980 |
|
11 |
|
in |
1952 |
|
|
|
|
|
|
|
|
|
| Direction |
|
NW |
|
WNW |
|
NW |
|
|
|
ESE |
|
|
|
|
SSE |
|
|
|
|
|
|
|
|
|
|
|
|
| Maximum Water Temp |
|
45.1 |
|
44.1 |
|
41.3 |
|
+3.8 |
|
49.8 |
|
in |
2012 |
|
36.0 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Minimum
Water Temp |
|
43.0 |
|
42.6 |
|
39.4 |
|
+3.6 |
|
47.5 |
|
in |
2012 |
|
34.7 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Average Water Temp |
|
44.1 |
|
43.4 |
|
40.4 |
|
+3.6 |
|
48.7 |
|
in |
2012 |
|
35.4 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Sunrise/ AM Twilight |
|
6:46:10 AM |
|
6:17:13 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sunset /
PM Twilight |
|
6:58:42 PM |
|
7:26:57 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Length Of Day |
|
12:12:32 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special
Conditions |
|
Fog |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Comments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For March 21, 2025 |
|
|
|
|
|
|
|
|
|
| Climate Weather for March 21 |
|
|
|
|
|
|
|
|
|
| Weather History For March 21 |
|
|
|
|
|
|
|
|
|
| Weather Calendar |
|
|
|
|
|
|
|
|
| Back To Weather Stat Page |
|
|
|
|
|
|
|
|
| Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|