| Portsmouth Rhode Island Weather Almanac |
|
|
|
|
|
|
|
|
|
| Tuesday,
December 12, 2023 |
|
|
|
|
|
|
|
|
|
| Clear,
Breezy, Much Colder |
|
|
|
|
|
|
|
|
|
| |
|
Climate
Normal Period |
Climate Record Period |
|
|
|
|
|
|
|
|
| |
|
1991 -
2020 |
1893 - 2023 |
|
|
|
|
|
|
|
|
| |
|
December 12, 2023 |
|
Record |
|
Record |
|
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2023 |
|
2022 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
|
|
|
|
|
|
|
| Maximum Temperature |
|
42 |
|
32 |
|
44 |
|
-2 |
|
62 |
|
in |
2015 |
|
17 |
|
in |
1895 |
|
|
|
|
|
|
|
|
|
| Minimum
Temperature |
|
31 |
|
26 |
|
31 |
|
+0 |
|
49 |
|
in |
2015 |
|
3 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
37 |
|
29 |
|
37 |
|
+0 |
|
56 |
|
in |
2015 |
|
12 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Temperature |
|
47.8 |
|
46.1 |
|
45.3 |
|
+2.4 |
|
54.6 |
|
in |
1953 |
|
30.8 |
|
in |
1904 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Temperature |
|
36.0 |
|
34.7 |
|
32.3 |
|
+3.7 |
|
40.7 |
|
in |
2015 |
|
16.4 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Month Average
Temperature |
|
42.2 |
|
40.6 |
|
38.8 |
|
+3.4 |
|
47.5 |
|
in |
2015 |
|
25.5 |
|
in |
1904 |
|
|
|
|
|
|
|
|
|
| High Heat Index |
|
|
|
|
|
|
|
|
|
#N/A |
|
in |
#N/A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Low Wind
Chill |
|
25 |
|
14 |
|
20 |
|
+5 |
|
|
|
|
|
|
-12 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Heating Degree Days |
|
28 |
|
36 |
|
27 |
|
+1 |
|
53 |
|
in |
1988 |
|
9 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Month Heating DD |
|
274 |
|
293 |
|
314 |
|
-40 |
|
474 |
|
in |
1904 |
|
210 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Season
Heating DD |
|
1215 |
|
1114 |
|
1304 |
|
-89 |
|
1786 |
|
in |
1904 |
|
1005 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Cooling Degree Days |
|
0 |
|
0 |
|
0 |
|
+0 |
|
|
|
in |
|
|
0 |
|
in |
Many |
|
|
|
|
|
|
|
|
|
| Month Cooling DD |
|
0 |
|
0 |
|
0 |
|
+0 |
|
3 |
|
in |
2022 |
|
0 |
|
in |
Many |
|
|
|
|
|
|
|
|
|
| Year Cooling DD |
|
726 |
|
784 |
|
609 |
|
+117 |
|
871 |
|
in |
2020 |
|
290 |
|
in |
1902 |
|
|
|
|
|
|
|
|
|
| Maximum Dew Point |
|
33 |
|
31 |
|
37 |
|
-4 |
|
59 |
|
in |
2008 |
|
2 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Minimum
Dew Point |
|
25 |
|
13 |
|
22 |
|
+3 |
|
44 |
|
in |
2020 |
|
-15 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
29 |
|
22 |
|
29 |
|
+0 |
|
50 |
|
in |
2020 |
|
-7 |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Dew Point |
|
42.8 |
|
41.3 |
|
36.8 |
|
+5.9 |
|
47.4 |
|
in |
2015 |
|
19.6 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Month Avg
Min Dew Point |
|
32.1 |
|
25.8 |
|
21.9 |
|
+10.1 |
|
36.8 |
|
in |
2015 |
|
-0.5 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Month Average Dew Point |
|
37.7 |
|
33.8 |
|
29.4 |
|
+8.3 |
|
42.3 |
|
in |
2015 |
|
9.5 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Precipitation |
|
.00 |
|
.02 |
|
.15 |
|
-.15 |
|
1.46 |
|
in |
2008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| One Hour
Rain |
|
.00 |
|
.00 |
|
|
|
|
|
.42 |
|
in |
2008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Half Hour
Rain |
|
.00 |
|
.00 |
|
|
|
|
|
.23 |
|
in |
2008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hourly Rain Rate |
|
.00 |
|
.00 |
|
|
|
|
|
1.90 |
|
in |
2008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Precipitation |
|
2.43 |
|
1.96 |
|
1.81 |
|
+.62 |
|
6.47 |
|
in |
1936 |
|
T |
|
in |
1988 |
|
|
|
|
|
|
|
|
|
| Year Precipitation |
|
51.48 |
|
39.77 |
|
43.24 |
|
+8.24 |
|
62.00 |
|
in |
1983 |
|
26.39 |
|
in |
1965 |
|
|
|
|
|
|
|
|
|
| Snow |
|
0.0 |
|
0.1 |
|
0.2 |
|
-0.2 |
|
6.1 |
|
in |
1960 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Snow Depth |
|
0 |
|
0 |
|
0 |
|
-0 |
|
8 |
|
in |
1981 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Snow |
|
0.1 |
|
1.5 |
|
2.0 |
|
-1.9 |
|
17.0 |
|
in |
1981 |
|
0.0 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Season Snow |
|
0.1 |
|
1.5 |
|
2.6 |
|
+2.6 |
|
20.5 |
|
in |
1898 |
|
0.0 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| |
|
December 12, 2023 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2023 |
|
2022 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Humidity |
|
83% |
|
99% |
|
89% |
|
-6% |
|
100% |
|
in |
2020 |
|
50% |
|
in |
1975 |
|
|
|
|
|
|
|
|
|
| Minimum
Humidity |
|
53% |
|
53% |
|
58% |
|
-5% |
|
95% |
|
in |
1949 |
|
28% |
|
in |
1977 |
|
|
|
|
|
|
|
|
|
| Average Humidity |
|
68% |
|
76% |
|
74% |
|
-6% |
|
98% |
|
in |
1949 |
|
40% |
|
in |
1975 |
|
|
|
|
|
|
|
|
|
| Maximum Barometer |
|
30.38 |
|
30.17 |
|
30.17 |
|
+00.21 |
|
30.72 |
|
in |
2019 |
|
29.47 |
|
in |
1951 |
|
|
|
|
|
|
|
|
|
| Minimum
Barometer |
|
30.10 |
|
30.04 |
|
29.83 |
|
+00.27 |
|
30.50 |
|
in |
2006 |
|
28.95 |
|
in |
1944 |
|
|
|
|
|
|
|
|
|
| Average Barometer |
|
30.24 |
|
30.11 |
|
30.00 |
|
+00.24 |
|
30.57 |
|
in |
2006 |
|
29.40 |
|
in |
1951 |
|
|
|
|
|
|
|
|
|
| Average
Wind |
|
7.6 |
|
10.7 |
|
8.0 |
|
-0.4 |
|
24.4 |
|
in |
1960 |
|
1.0 |
|
in |
1997 |
|
|
|
|
|
|
|
|
|
| Direction |
|
SW |
|
N |
|
SW |
|
|
|
N |
WNW |
|
|
|
|
|
|
|
|
| High Wind
Gust |
|
28 |
|
24 |
|
25 |
|
+3 |
|
59 |
|
in |
1960 |
|
6 |
|
in |
1997 |
|
|
|
|
|
|
|
|
|
| Direction |
|
WNW |
|
NNW |
|
WNW |
|
|
|
N |
WNW |
|
|
|
|
|
|
|
|
| Maximum Water Temp |
|
49.5 |
|
46.2 |
|
47.1 |
|
+2.4 |
|
52.3 |
|
in |
2011 |
|
42.2 |
|
in |
2019 |
|
|
|
|
|
|
|
|
|
| Minimum
Water Temp |
|
47.1 |
|
44.8 |
|
44.7 |
|
+2.4 |
|
50.4 |
|
in |
2015 |
|
39.9 |
|
in |
2019 |
|
|
|
|
|
|
|
|
|
| Average Water Temp |
|
48.3 |
|
45.5 |
|
45.9 |
|
+2.4 |
|
50.7 |
|
in |
2015 |
|
41.1 |
|
in |
2019 |
|
|
|
|
|
|
|
|
|
| Sunrise/ AM Twilight |
|
7:02:09 AM |
|
6:32:54 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sunset /
PM Twilight |
|
4:15:09 PM |
|
4:44:53 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Length Of Day |
|
9:13:00 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special Conditions |
|
None |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Comments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For December 12, 2023 |
|
|
|
|
|
|
|
|
|
| Climate Weather for December 12 |
|
|
|
|
|
|
|
|
|
| Weather History For December 12 |
|
|
|
|
|
|
|
|
|
| Weather Calendar |
|
|
|
|
|
|
|
|
| Back To Weather Stat Page |
|
|
|
|
|
|
|
|
| Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|