| Portsmouth Rhode Island
Weather Almanac |
|
|
|
|
|
|
|
|
| Wednesday, March 17, 2021 |
|
|
|
|
|
|
|
|
| Cloudy early, Mostly Cloudy Day to Partly Cloudy PM, Light
Winds and Warmer |
|
|
|
|
|
|
|
|
| Climate Normal
Period |
|
Climate Record Period |
|
|
|
|
|
|
|
|
|
| 1991- 2020 |
|
1893 - 2021 |
|
|
|
|
|
|
|
|
|
| |
|
March
17, 2021 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2021 |
|
2020 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Temperature |
|
45 |
|
47 |
|
46 |
|
-1 |
|
66 |
|
in |
2003 |
|
25 |
|
in |
1967 |
|
|
|
|
|
|
|
|
|
| Minimum
Temperature |
|
29 |
|
35 |
|
31 |
|
-2 |
|
50 |
|
in |
1990 |
|
10 |
|
in |
1916 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
37 |
|
41 |
|
39 |
|
-2 |
|
55 |
|
in |
1990 |
|
18 |
|
in |
1916 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Temperature |
|
44.2 |
|
51.2 |
|
43.5 |
|
+0.7 |
|
52.1 |
|
in |
1973 |
|
32.2 |
|
in |
1916 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Temperature |
|
26.4 |
|
34.9 |
|
28.8 |
|
-2.5 |
|
37.8 |
|
in |
1973 |
|
19.7 |
|
in |
1950 |
|
|
|
|
|
|
|
|
|
| Month Average Temperature |
|
35.6 |
|
43.3 |
|
36.4 |
|
-0.8 |
|
45.2 |
|
in |
1973 |
|
26.5 |
|
in |
1916 |
|
|
|
|
|
|
|
|
|
| HDD |
|
28 |
|
24 |
|
26 |
|
+2 |
|
47 |
|
in |
1916 |
|
10 |
|
in |
1990 |
|
|
|
|
|
|
|
|
|
| Month HDD |
|
500 |
|
369 |
|
486 |
|
+14 |
|
654 |
|
in |
1916 |
|
336 |
|
in |
1973 |
|
|
|
|
|
|
|
|
|
| Season HDD |
|
4067 |
|
3930 |
|
4312 |
|
-245 |
|
5366 |
|
in |
1905 |
|
3546 |
|
in |
2016 |
|
|
|
|
|
|
|
|
|
| CDD |
|
0 |
|
0 |
|
0 |
|
+0 |
|
0 |
|
in |
|
0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Month CDD |
|
0 |
|
0 |
|
0 |
|
+0 |
|
0 |
|
in |
|
|
0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Year CDD |
|
0 |
|
0 |
|
0 |
|
+0 |
|
0 |
|
in |
|
|
0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Maximum Dew Point |
|
33 |
|
44 |
|
35 |
|
-2 |
|
59 |
|
in |
1990 |
|
9 |
|
in |
1967 |
|
|
|
|
|
|
|
|
|
| Minimum
Dew Point |
|
17 |
|
27 |
|
20 |
|
-3 |
|
50 |
|
in |
1990 |
|
-7 |
|
in |
1961 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
25 |
|
36 |
|
28 |
|
-3 |
|
55 |
|
in |
1990 |
|
2 |
|
in |
1967 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Dew Point |
|
26.6 |
|
38.2 |
|
33.2 |
|
-6.6 |
|
42.1 |
|
in |
1973 |
|
20.1 |
|
in |
1960 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Dew Point |
|
9.6 |
|
22.2 |
|
18.2 |
|
-8.6 |
|
30.2 |
|
in |
1973 |
|
3.6 |
|
in |
1980 |
|
|
|
|
|
|
|
|
|
| Month Average Dew Point |
|
18.1 |
|
30.2 |
|
26.1 |
|
-8.0 |
|
36.2 |
|
in |
1973 |
|
14.6 |
|
in |
1950 |
|
|
|
|
|
|
|
|
|
| Precipitation |
|
.00 |
|
.28 |
|
.15 |
|
-.15 |
|
1.60 |
|
in |
2007 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| One Hour |
|
.00 |
|
.04 |
|
|
|
|
|
.35 |
|
in |
2007 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hourly Rate |
|
.00 |
|
.07 |
|
|
|
|
|
3.74 |
|
in |
2007 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Precipitation |
|
.45 |
|
1.08 |
|
2.30 |
|
-1.85 |
|
5.80 |
|
in |
2000 |
|
.08 |
|
in |
1915 |
|
|
|
|
|
|
|
|
|
| Year Precipitation |
|
5.95 |
|
6.89 |
|
9.40 |
|
-3.45 |
|
19.20 |
|
in |
1979 |
|
4.55 |
|
in |
1980 |
|
|
|
|
|
|
|
|
|
| Snow |
|
0.0 |
|
0.1 |
|
0.2 |
|
-0.2 |
|
2.0 |
|
in |
1932 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Snow Depth |
|
0 |
|
0 |
|
|
|
|
|
11 |
|
in |
1896 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Snow |
|
0.0 |
|
0.7 |
|
3.6 |
|
-3.6 |
|
20.3 |
|
in |
1916 |
|
0.0 |
|
in |
2021 |
|
|
|
|
|
|
|
|
|
| Season Snow |
|
27.7 |
|
12.9 |
|
30.9 |
|
-3.2 |
|
75.0 |
|
in |
2005 |
|
4.7 |
|
in |
1998 |
|
|
|
|
|
|
|
|
|
| |
|
March
17, 2021 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2021 |
|
2020 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Humidity |
|
88% |
|
95% |
|
84% |
|
+4% |
|
100% |
|
in |
2007 |
|
54% |
|
in |
1981 |
|
|
|
|
|
|
|
|
|
| Minimum
Humidity |
|
55% |
|
70% |
|
48% |
|
+7% |
|
91% |
|
in |
1968 |
|
23% |
|
in |
1959 |
|
|
|
|
|
|
|
|
|
| Average Humidity |
|
72% |
|
83% |
|
66% |
|
+6% |
|
96% |
|
in |
1968 |
|
41% |
|
in |
1961 |
|
|
|
|
|
|
|
|
|
| Maximum Barometer |
|
30.23 |
|
30.49 |
|
30.06 |
|
+00.17 |
|
30.61 |
|
in |
1998 |
|
29.22 |
|
in |
1981 |
|
|
|
|
|
|
|
|
|
| Minimum
Barometer |
|
30.10 |
|
30.00 |
|
29.77 |
|
+00.33 |
|
30.48 |
|
in |
1998 |
|
28.88 |
|
in |
1974 |
|
|
|
|
|
|
|
|
|
| Average Barometer |
|
30.17 |
|
30.25 |
|
29.92 |
|
+00.25 |
|
30.55 |
|
in |
1998 |
|
29.12 |
|
in |
1981 |
|
|
|
|
|
|
|
|
|
| Average Wind |
|
4.3 |
|
8.3 |
|
9.1 |
|
-4.8 |
|
20.1 |
|
in |
2000 |
|
2.5 |
|
in |
2012 |
|
|
|
|
|
|
|
|
|
| Direction |
|
SW |
|
SE |
|
WNW |
|
|
|
N |
|
|
|
|
S |
|
|
|
|
|
|
|
|
|
|
|
|
| High Wind Gust |
|
20 |
|
22 |
|
28 |
|
-8 |
|
61 |
|
in |
1956 |
|
9 |
|
in |
2003 |
|
|
|
|
|
|
|
|
|
| Direction |
|
S |
|
SE |
|
NW |
|
|
|
NNW |
|
|
|
|
S |
|
|
|
|
|
|
|
|
|
|
|
|
| High Heat Index |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Wind Chill |
|
27 |
|
27 |
|
20 |
|
+7 |
|
|
|
|
|
|
-5 |
|
in |
1956 |
|
|
|
|
|
|
|
|
|
| Maximum Water Temp |
|
38.3 |
|
39.0 |
|
40.3 |
|
-2.0 |
|
46.4 |
|
in |
2012 |
|
36.2 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Minimum
Water Temp |
|
37.0 |
|
37.9 |
|
38.1 |
|
-1.1 |
|
44.7 |
|
in |
2012 |
|
34.9 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Average Water Temp |
|
37.7 |
|
38.5 |
|
39.2 |
|
-1.6 |
|
45.6 |
|
in |
2012 |
|
35.6 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Sunrise/ AM Twilight |
|
6:51:34 AM |
|
6:24:03 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sunset /
PM Twilight |
|
6:54:58 PM |
|
7:22:29 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Length Of Day |
|
12:03:24 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special Conditions |
|
None |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Comments |
|
16 consecutive days without rain |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For March 17, 2021 |
|
|
|
|
| Climate Weather for March 17 |
|
|
|
|
| Weather History For March 17 |
|
|
|
|
| Weather Calendar |
|
|
|
|
| Back To Weather Stat Page |
|
|
|
|
| Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|