Portsmouth Rhode Island Weather Almanac |
|
|
|
|
|
|
|
|
|
Sunday,
December 31, 2023 |
|
|
|
|
|
|
|
|
|
Cloudy and
Cooler |
|
|
|
|
|
|
|
|
|
|
|
Climate
Normal Period |
Climate Record Period |
|
|
|
|
|
|
|
|
|
|
1991 -
2020 |
1893 - 2023 |
|
|
|
|
|
|
|
|
|
|
December 31, 2023 |
|
Record |
|
Record |
|
|
|
|
|
|
|
|
|
Observed Daily Data |
|
2023 |
|
2022 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
|
|
|
|
|
|
|
Maximum Temperature |
|
39 |
|
56 |
|
40 |
|
-1 |
|
57 |
|
in |
1936 |
|
9 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
Minimum
Temperature |
|
34 |
|
44 |
|
27 |
|
+7 |
|
44 |
|
in |
2022 |
|
-5 |
|
in |
1917 |
|
|
|
|
|
|
|
|
|
Average Temperature |
|
37 |
|
50 |
|
33 |
|
+4 |
|
50 |
|
in |
2022 |
|
3 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
Month Avg Max Temperature |
|
46.9 |
|
43.0 |
|
43.2 |
|
+3.7 |
|
54.0 |
|
in |
2015 |
|
30.8 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
Month Avg
Min Temperature |
|
35.1 |
|
30.3 |
|
30.0 |
|
+5.0 |
|
41.4 |
|
in |
2015 |
|
14.6 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
Month Average
Temperature |
|
41.3 |
|
36.9 |
|
36.5 |
|
+4.7 |
|
48.0 |
|
in |
2015 |
|
22.9 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
High Heat Index |
|
|
|
|
|
|
|
|
|
#N/A |
|
in |
#N/A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Low Wind
Chill |
|
28 |
|
42 |
|
14 |
|
+14 |
|
|
|
|
|
|
-26 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
Heating Degree Days |
|
28 |
|
15 |
|
32 |
|
-4 |
|
62 |
|
in |
1962 |
|
15 |
|
in |
2022 |
|
|
|
|
|
|
|
|
|
Month Heating DD |
|
736 |
|
872 |
|
880 |
|
-144 |
|
1304 |
|
in |
1989 |
|
527 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
Season
Heating DD |
|
1677 |
|
1693 |
|
1870 |
|
-193 |
|
2476 |
|
in |
1904 |
|
1322 |
|
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 |
|
31 |
|
55 |
|
33 |
|
-2 |
|
55 |
|
in |
2022 |
|
-5 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
Minimum
Dew Point |
|
26 |
|
44 |
|
17 |
|
+9 |
|
44 |
|
in |
2022 |
|
-18 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
Average Dew Point |
|
29 |
|
50 |
|
25 |
|
+4 |
|
50 |
|
in |
2022 |
|
-12 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
Month Avg Max Dew Point |
|
40.6 |
|
36.0 |
|
33.9 |
|
+6.6 |
|
49.3 |
|
in |
2015 |
|
16.6 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
Month Avg
Min Dew Point |
|
29.5 |
|
22.6 |
|
18.4 |
|
+11.1 |
|
35.9 |
|
in |
2015 |
|
0.1 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
Month Average Dew Point |
|
35.4 |
|
29.5 |
|
26.2 |
|
+9.2 |
|
42.8 |
|
in |
2015 |
|
8.3 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
Precipitation |
|
.00 |
|
.58 |
|
.13 |
|
-.13 |
|
1.37 |
|
in |
1906 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
One Hour
Rain |
|
.00 |
|
.10 |
|
|
|
|
|
.18 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Half Hour
Rain |
|
.00 |
|
.06 |
|
|
|
|
|
.10 |
|
in |
2007 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hourly Rain Rate |
|
.00 |
|
.22 |
|
|
|
|
|
.64 |
|
in |
2018 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Month Precipitation |
|
5.76 |
|
5.24 |
|
4.53 |
|
+1.23 |
|
9.94 |
|
in |
1936 |
|
.58 |
|
in |
1955 |
|
|
|
|
|
|
|
|
|
Year Precipitation |
|
54.81 |
|
43.05 |
|
45.96 |
|
+8.85 |
|
65.49 |
|
in |
1983 |
|
27.66 |
|
in |
1965 |
|
|
|
|
|
|
|
|
|
Snow |
|
0.0 |
|
0.0 |
|
0.3 |
|
-0.3 |
|
5.1 |
|
in |
2008 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Snow
Depth |
|
0 |
|
0 |
|
1 |
|
-1 |
|
15 |
|
in |
1947 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Month Snow |
|
0.1 |
|
1.5 |
|
6.5 |
|
-6.4 |
|
23.5 |
|
in |
2009 |
|
T |
|
in |
2011 |
|
|
|
|
|
|
|
|
|
Season Snow |
|
0.1 |
|
0.1 |
|
7.1 |
|
+7.1 |
|
23.7 |
|
in |
1904 |
|
T |
|
in |
1999 |
|
|
|
|
|
|
|
|
|
|
|
December 31, 2023 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
Observed Daily Data |
|
2023 |
|
2022 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
Maximum Humidity |
|
82% |
|
99% |
|
85% |
|
-3% |
|
100% |
|
in |
2021 |
|
57% |
|
in |
1955 |
|
|
|
|
|
|
|
|
|
Minimum
Humidity |
|
67% |
|
95% |
|
55% |
|
+12% |
|
97% |
|
in |
2021 |
|
22% |
|
in |
1991 |
|
|
|
|
|
|
|
|
|
Average Humidity |
|
75% |
|
97% |
|
70% |
|
+4% |
|
99% |
|
in |
2021 |
|
41% |
|
in |
1991 |
|
|
|
|
|
|
|
|
|
Maximum Barometer |
|
29.98 |
|
30.20 |
|
30.18 |
|
-00.20 |
|
30.76 |
|
in |
1991 |
|
29.59 |
|
in |
1976 |
|
|
|
|
|
|
|
|
|
Minimum
Barometer |
|
29.75 |
|
29.72 |
|
29.88 |
|
-00.13 |
|
30.59 |
|
in |
1963 |
|
28.94 |
|
in |
1948 |
|
|
|
|
|
|
|
|
|
Average Barometer |
|
29.87 |
|
29.96 |
|
30.03 |
|
-00.16 |
|
30.67 |
|
in |
1963 |
|
29.47 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
Average
Wind |
|
7.1 |
|
5.2 |
|
7.5 |
|
-0.4 |
|
23.9 |
|
in |
1962 |
|
1.3 |
|
in |
1963 |
|
|
|
|
|
|
|
|
|
Direction |
|
WNW |
|
SSW |
|
WNW |
|
|
|
NW |
NW |
|
|
|
|
|
|
|
|
High
Wind Gust |
|
23 |
|
17 |
|
24 |
|
-1 |
|
57 |
|
in |
1901 |
|
10 |
|
in |
1967 |
|
|
|
|
|
|
|
|
|
Direction |
|
#N/A |
|
#N/A |
|
WNW |
|
|
|
NW |
NW |
|
|
|
|
|
|
|
|
Maximum Water Temp |
|
46.9 |
|
44.2 |
|
43.3 |
|
+3.7 |
|
49.2 |
|
in |
2011 |
|
38.1 |
|
in |
2000 |
|
|
|
|
|
|
|
|
|
Minimum
Water Temp |
|
45.5 |
|
43.0 |
|
40.9 |
|
+4.6 |
|
47.4 |
|
in |
2015 |
|
36.5 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
Average Water Temp |
|
46.2 |
|
43.6 |
|
42.1 |
|
+4.1 |
|
47.7 |
|
in |
2021 |
|
36.5 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
Sunrise/ AM Twilight |
|
7:11:31 AM |
|
6:42:00 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Sunset /
PM Twilight |
|
4:24:37 PM |
|
4:54:38 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Length Of Day |
|
9:13:06 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Special Conditions |
|
None |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Comments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hour-by-Hour Weather For December 31, 2023 |
|
|
|
|
|
|
|
|
|
Climate Weather for December 31 |
|
|
|
|
|
|
|
|
|
Weather History For December 31 |
|
|
|
|
|
|
|
|
|
Weather Calendar |
|
|
|
|
|
|
|
|
Back To Weather Stat Page |
|
|
|
|
|
|
|
|
Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|