| Portsmouth Rhode Island Weather Almanac |
|
|
|
|
|
|
|
|
|
| Sunday,
September 10, 2023 |
|
|
|
|
|
|
|
|
|
| Cloudy/Fog
early, then Mostly Cloudy, Light Rain, Light Winds, Warm and Very Muggy |
|
|
|
|
|
|
|
|
|
| |
|
Climate
Normal Period |
Climate Record Period |
|
|
|
|
|
|
|
|
| |
|
1991 -
2020 |
1893 - 2023 |
|
|
|
|
|
|
|
|
| |
|
September 10, 2023 |
|
Record |
|
Record |
|
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2023 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
|
|
|
|
|
|
|
| Maximum Temperature |
|
80 |
|
84 |
|
74 |
|
+6 |
|
89 |
|
in |
1961 |
|
60 |
|
in |
1913 |
|
|
|
|
|
|
|
|
|
| Minimum
Temperature |
|
69 |
|
60 |
|
59 |
|
+10 |
|
71 |
|
in |
2020 |
|
44 |
|
in |
1956 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
75 |
|
72 |
|
66 |
|
+9 |
|
79 |
|
in |
1897 |
|
54 |
|
in |
1913 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Temperature |
|
83.1 |
|
76.7 |
|
75.2 |
|
+7.9 |
|
84.7 |
|
in |
1983 |
|
68.8 |
|
in |
1994 |
|
|
|
|
|
|
|
|
|
| Month
Avg Min Temperature |
|
66.3 |
|
59.8 |
|
60.2 |
|
+6.1 |
|
67.7 |
|
in |
1959 |
|
51.5 |
|
in |
1893 |
|
|
|
|
|
|
|
|
|
| Month Average
Temperature |
|
74.9 |
|
68.4 |
|
67.7 |
|
+7.2 |
|
75.5 |
|
in |
1959 |
|
62.1 |
|
in |
1994 |
|
|
|
|
|
|
|
|
|
| High
Heat Index |
|
86 |
|
86 |
|
76 |
|
+10 |
|
95 |
|
in |
1961 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Low
Wind Chill |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
40 |
|
in |
1956 |
|
|
|
|
|
|
|
|
|
| Heating Degree Days |
|
0 |
|
0 |
|
1 |
|
-1 |
|
11 |
|
in |
1913 |
|
0 |
|
in |
2023 |
|
|
|
|
|
|
|
|
|
| Month Heating DD |
|
1 |
|
2 |
|
10 |
|
-9 |
|
36 |
|
in |
1994 |
|
0 |
|
in |
2021 |
|
|
|
|
|
|
|
|
|
| Season
Heating DD |
|
1 |
|
2 |
|
10 |
|
-9 |
|
63 |
|
in |
1914 |
|
0 |
|
in |
2020 |
|
|
|
|
|
|
|
|
|
| Cooling Degree Days |
|
10 |
|
7 |
|
3 |
|
+7 |
|
14 |
|
in |
1897 |
|
0 |
|
in |
2018 |
|
|
|
|
|
|
|
|
|
| Month Cooling DD |
|
100 |
|
36 |
|
36 |
|
+64 |
|
105 |
|
in |
1959 |
|
0 |
|
in |
1893 |
|
|
|
|
|
|
|
|
|
| Year Cooling DD |
|
672 |
|
747 |
|
573 |
|
+99 |
|
835 |
|
in |
2020 |
|
279 |
|
in |
1902 |
|
|
|
|
|
|
|
|
|
| Maximum Dew Point |
|
76 |
|
67 |
|
64 |
|
+12 |
|
76 |
|
in |
2023 |
|
46 |
|
in |
1975 |
|
|
|
|
|
|
|
|
|
| Minimum
Dew Point |
|
68 |
|
58 |
|
54 |
|
+14 |
|
69 |
|
in |
2020 |
|
35 |
|
in |
1980 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
72 |
|
63 |
|
59 |
|
+13 |
|
72 |
|
in |
2023 |
|
42 |
|
in |
1956 |
|
|
|
|
|
|
|
|
|
| Month Avg Max Dew Point |
|
73.7 |
|
64.8 |
|
64.9 |
|
+8.8 |
|
73.7 |
|
in |
2023 |
|
54.2 |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Month
Avg Min Dew Point |
|
65.0 |
|
55.9 |
|
55.8 |
|
+9.2 |
|
65.0 |
|
in |
2023 |
|
44.0 |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Month Average Dew Point |
|
69.5 |
|
60.7 |
|
60.3 |
|
+9.2 |
|
69.5 |
|
in |
2023 |
|
49.1 |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Precipitation |
|
.02 |
|
.00 |
|
.12 |
|
-.10 |
|
2.58 |
|
in |
1896 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| One
Hour Rain |
|
.02 |
|
.00 |
|
|
|
|
|
.49 |
|
in |
1999 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Half
Hour Rain |
|
.01 |
|
.00 |
|
|
|
|
|
.28 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hourly Rain Rate |
|
.00 |
|
.00 |
|
|
|
|
|
2.09 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Precipitation |
|
.02 |
|
1.08 |
|
1.14 |
|
-1.12 |
|
7.60 |
|
in |
2021 |
|
.00 |
|
in |
2009 |
|
|
|
|
|
|
|
|
|
| Year Precipitation |
|
35.64 |
|
26.50 |
|
30.42 |
|
+5.22 |
|
46.33 |
|
in |
1998 |
|
16.94 |
|
in |
1957 |
|
|
|
|
|
|
|
|
|
| Snow |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Snow Depth |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Month Snow |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Season Snow |
|
0.0 |
|
0.0 |
|
0.0 |
|
+0.0 |
|
0.0 |
|
in |
1996 |
|
0.0 |
|
in |
1998 |
|
|
|
|
|
|
|
|
|
| |
|
September 10, 2023 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
2023 |
|
2022 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Humidity |
|
99% |
|
98% |
|
93% |
|
+6% |
|
100% |
|
in |
2016 |
|
77% |
|
in |
1975 |
|
|
|
|
|
|
|
|
|
| Minimum
Humidity |
|
87% |
|
51% |
|
58% |
|
+29% |
|
93% |
|
in |
1999 |
|
25% |
|
in |
1980 |
|
|
|
|
|
|
|
|
|
| Average Humidity |
|
93% |
|
75% |
|
75% |
|
+18% |
|
97% |
|
in |
1999 |
|
54% |
|
in |
1953 |
|
|
|
|
|
|
|
|
|
| Maximum Barometer |
|
30.14 |
|
30.22 |
|
30.12 |
|
+00.02 |
|
30.49 |
|
in |
1957 |
|
29.81 |
|
in |
1958 |
|
|
|
|
|
|
|
|
|
| Minimum
Barometer |
|
30.06 |
|
30.14 |
|
29.90 |
|
+00.16 |
|
30.31 |
|
in |
2009 |
|
29.43 |
|
in |
1933 |
|
|
|
|
|
|
|
|
|
| Average Barometer |
|
30.10 |
|
30.18 |
|
30.01 |
|
+00.09 |
|
30.38 |
|
in |
2009 |
|
29.71 |
|
in |
1958 |
|
|
|
|
|
|
|
|
|
| Average
Wind |
|
3.7 |
|
2.1 |
|
6.0 |
|
-2.3 |
|
11.2 |
|
in |
1965 |
|
1.8 |
|
in |
1990 |
|
|
|
|
|
|
|
|
|
| Direction |
|
SSE |
|
WNW |
|
S |
|
|
|
SSW |
SW |
|
|
|
|
|
|
|
|
| High
Wind Gust |
|
14 |
|
13 |
|
20 |
|
-6 |
|
33 |
|
in |
1965 |
|
12 |
|
in |
2007 |
|
|
|
|
|
|
|
|
|
| Direction |
|
S |
|
NW |
|
SSW |
|
|
|
SSW |
NNE |
|
|
|
|
|
|
|
|
| Maximum Water Temp |
|
72.9 |
|
70.3 |
|
69.8 |
|
+3.1 |
|
74.5 |
|
in |
2023 |
|
65.8 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
| Minimum
Water Temp |
|
70.7 |
|
68.9 |
|
67.5 |
|
+3.2 |
|
71.6 |
|
in |
2023 |
|
63.9 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
| Average Water Temp |
|
71.8 |
|
69.6 |
|
68.7 |
|
+3.1 |
|
73.1 |
|
in |
2023 |
|
64.9 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
| Sunrise/ AM Twilight |
|
6:20:02 AM |
|
5:53:04 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sunset
/ PM Twilight |
|
7:03:20 PM |
|
7:31:04 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Length Of Day |
|
12:43:18 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special Conditions |
|
Dense Fog |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Comments |
|
Record High Dew Points |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For September 10, 2023 |
|
|
|
|
|
|
|
|
| Climate Weather for September 10 |
|
|
|
|
|
|
|
|
| Weather History For September 10 |
|
|
|
|
|
|
|
|
| Weather Calendar |
|
|
|
|
|
|
|
|
| Back To Weather Stat Page |
|
|
|
|
|
|
|
|
| Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|