| Portsmouth Rhode Island Weather Almanac |
|
|
|
|
|
|
|
|
|
| Saturday,
December 11, 2021 |
|
|
|
|
|
|
|
|
|
| Cloudy/Light
Rain & Fog early, Dense Fog Day to Cloudy/Light Rain & Fog PM, Windy
&Very Warm |
|
|
|
|
|
|
|
|
|
| |
|
Climate
Normal Period |
Climate Record Period |
|
|
|
|
|
|
|
|
| |
|
1991 -
2020 |
1893 - 2021 |
|
|
|
|
|
|
|
|
| |
|
December 11, 2021 |
|
Record |
|
Record |
|
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2021 |
|
2020 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
|
|
|
|
|
|
|
| Maximum Temperature |
|
60 |
|
51 |
|
44 |
|
+16 |
|
65 |
|
in |
1971 |
|
19 |
|
in |
1977 |
|
|
|
|
|
|
|
|
|
| Minimum
Temperature |
|
37 |
|
31 |
|
31 |
|
+6 |
|
47 |
|
in |
2015 |
|
8 |
|
in |
1977 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
49 |
|
41 |
|
38 |
|
+11 |
|
53 |
|
in |
2015 |
|
14 |
|
in |
1977 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Temperature |
|
48.4 |
|
45.5 |
|
45.5 |
|
+2.9 |
|
55.0 |
|
in |
1953 |
|
30.5 |
|
in |
1904 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Temperature |
|
34.3 |
|
33.3 |
|
32.5 |
|
+1.8 |
|
41.4 |
|
in |
1998 |
|
16.0 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Month Average
Temperature |
|
41.5 |
|
39.6 |
|
38.9 |
|
+2.6 |
|
48.2 |
|
in |
1998 |
|
25.5 |
|
in |
1904 |
|
|
|
|
|
|
|
|
|
| High Heat Index |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Low Wind Chill |
|
36 |
|
30 |
|
20 |
|
+16 |
|
|
|
|
|
|
-13 |
|
in |
1977 |
|
|
|
|
|
|
|
|
|
| Heating Degree Days |
|
16 |
|
24 |
|
27 |
|
-11 |
|
51 |
|
in |
1977 |
|
12 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Month HDD |
|
258 |
|
279 |
|
287 |
|
-29 |
|
434 |
|
in |
1904 |
|
185 |
|
in |
1998 |
|
|
|
|
|
|
|
|
|
| Season HDD |
|
1052 |
|
1072 |
|
1277 |
|
-225 |
|
1746 |
|
in |
1904 |
|
996 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Cooling Degree Days |
|
0 |
|
0 |
|
0 |
|
+0 |
|
|
|
in |
|
|
|
|
in |
|
|
|
|
|
|
|
|
|
|
| Month CDD |
|
0 |
|
0 |
|
0 |
|
+0 |
|
0 |
|
in |
|
|
|
|
in |
|
|
|
|
|
|
|
|
|
|
| Year Cooling Degree Days |
|
795 |
|
871 |
|
609 |
|
+186 |
|
871 |
|
in |
2020 |
|
290 |
|
in |
1902 |
|
|
|
|
|
|
|
|
|
| Maximum Dew Point |
|
59 |
|
46 |
|
37 |
|
+22 |
|
59 |
|
in |
2021 |
|
-4 |
|
in |
1977 |
|
|
|
|
|
|
|
|
|
| Minimum
Dew Point |
|
36 |
|
28 |
|
22 |
|
+14 |
|
47 |
|
in |
2015 |
|
-15 |
|
in |
1980 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
48 |
|
37 |
|
30 |
|
+18 |
|
52 |
|
in |
2015 |
|
-9 |
|
in |
1977 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Dew Point |
|
41.5 |
|
37.8 |
|
37.0 |
|
+4.6 |
|
47.4 |
|
in |
2001 |
|
19.1 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Dew Point |
|
24.3 |
|
25.9 |
|
22.2 |
|
+2.1 |
|
36.5 |
|
in |
2015 |
|
-1.8 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Month Average Dew Point |
|
33.2 |
|
32.1 |
|
29.6 |
|
+3.6 |
|
42.0 |
|
in |
2015 |
|
8.6 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Precipitation |
|
.23 |
|
.00 |
|
.15 |
|
+.08 |
|
2.79 |
|
in |
1992 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| One Hour |
|
.06 |
|
.00 |
|
|
|
|
|
.41 |
|
in |
2008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hourly Rate |
|
.42 |
|
.00 |
|
|
|
|
|
1.37 |
|
in |
2008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Precipitation |
|
.64 |
|
2.53 |
|
1.66 |
|
-1.02 |
|
5.89 |
|
in |
1936 |
|
.00 |
|
in |
1946 |
|
|
|
|
|
|
|
|
|
| Year Precipitation |
|
46.22 |
|
39.41 |
|
43.09 |
|
+3.13 |
|
61.88 |
|
in |
1983 |
|
26.29 |
|
in |
1965 |
|
|
|
|
|
|
|
|
|
| Snow |
|
0.0 |
|
0.0 |
|
0.2 |
|
-0.2 |
|
3.8 |
|
in |
2019 |
|
|
|
in |
|
|
|
|
|
|
|
|
|
|
| Snow Depth |
|
0 |
|
0 |
|
|
|
|
|
10 |
|
in |
1981 |
|
|
|
in |
|
|
|
|
|
|
|
|
|
|
| Month Snow |
|
0.2 |
|
T |
|
1.8 |
|
-1.6 |
|
17.0 |
|
in |
1981 |
|
0.0 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Season Snow |
|
0.2 |
|
0.6 |
|
2.4 |
|
-2.2 |
|
19.5 |
|
in |
1898 |
|
0.0 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| |
|
December
11, 2021 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2021 |
|
2020 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Humidity |
|
100% |
|
92% |
|
86% |
|
+14% |
|
100% |
|
in |
2021 |
|
45% |
|
in |
1990 |
|
|
|
|
|
|
|
|
|
| Minimum
Humidity |
|
91% |
|
70% |
|
56% |
|
+35% |
|
92% |
|
in |
2008 |
|
20% |
|
in |
1980 |
|
|
|
|
|
|
|
|
|
| Average Humidity |
|
96% |
|
81% |
|
71% |
|
+24% |
|
96% |
|
in |
2021 |
|
35% |
|
in |
1990 |
|
|
|
|
|
|
|
|
|
| Maximum Barometer |
|
30.14 |
|
30.25 |
|
30.15 |
|
-00.01 |
|
30.78 |
|
in |
1983 |
|
29.42 |
|
in |
2004 |
|
|
|
|
|
|
|
|
|
| Minimum
Barometer |
|
29.54 |
|
30.13 |
|
29.83 |
|
-00.29 |
|
30.46 |
|
in |
2011 |
|
29.18 |
|
in |
1969 |
|
|
|
|
|
|
|
|
|
| Average Barometer |
|
29.84 |
|
30.19 |
|
29.99 |
|
-00.15 |
|
30.61 |
|
in |
1983 |
|
29.35 |
|
in |
1957 |
|
|
|
|
|
|
|
|
|
| Average Wind |
|
10.6 |
|
6.0 |
|
8.2 |
|
+2.4 |
|
21.9 |
|
in |
1952 |
|
2.1 |
|
in |
1996 |
|
|
|
|
|
|
|
|
|
| Direction |
|
SSW |
|
WSW |
|
N |
|
|
|
SE |
|
|
|
|
ENE |
|
|
|
|
|
|
|
|
|
|
|
|
| High Wind Gust |
|
33 |
|
27 |
|
26 |
|
+7 |
|
64 |
|
in |
1943 |
|
13 |
|
in |
2006 |
|
|
|
|
|
|
|
|
|
| Direction |
|
S |
|
WSW |
|
NW |
|
|
|
NW |
|
|
|
|
W |
|
|
|
|
|
|
|
|
|
|
|
|
| Maximum Water Temp |
|
50.4 |
|
49.1 |
|
47.1 |
|
+3.3 |
|
51.2 |
|
in |
2011 |
|
42.6 |
|
in |
2019 |
|
|
|
|
|
|
|
|
|
| Minimum
Water Temp |
|
48.2 |
|
46.0 |
|
44.5 |
|
+3.7 |
|
50.4 |
|
in |
2015 |
|
39.1 |
|
in |
2002 |
|
|
|
|
|
|
|
|
|
| Average Water Temp |
|
49.3 |
|
47.6 |
|
45.8 |
|
+3.5 |
|
50.6 |
|
in |
2015 |
|
41.2 |
|
in |
2010 |
|
|
|
|
|
|
|
|
|
| Sunrise/ AM Twilight |
|
7:00:14 AM |
|
6:30:37 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sunset /
PM Twilight |
|
4:17:08 PM |
|
4:46:44 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Length Of Day |
|
9:16:54 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special Conditions |
|
Dense Fog |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Comments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For December 11, 2021 |
|
|
|
|
|
|
|
|
|
| Climate Weather for December 11 |
|
|
|
|
|
|
|
|
|
| Weather History For December 11 |
|
|
|
|
|
|
|
|
|
| Weather Calendar |
|
|
|
|
|
|
|
|
|
| Back
To Weather Stat Page |
|
|
|
|
|
|
|
|
|
| Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|