| Portsmouth Rhode Island Weather Almanac |
|
|
| Sunday,
September 1, 2024 |
|
|
| Cloudy,
Light Rain and Fog, Continued Warm |
|
|
| |
|
Climate
Normal Period |
Climate Record Period |
|
| |
|
1991 -
2020 |
1893 - 2024 |
|
| |
|
September 1, 2024 |
|
Record |
|
Record |
|
|
| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
| Maximum Temperature |
|
75 |
|
75 |
|
77 |
|
-2 |
|
91 |
|
in |
2010 |
|
65 |
|
in |
1912 |
|
|
| Minimum
Temperature |
|
68 |
|
54 |
|
62 |
|
+6 |
|
73 |
|
in |
1959 |
|
48 |
|
in |
1975 |
|
|
| Average Temperature |
|
72 |
|
64 |
|
69 |
|
+3 |
|
82 |
|
in |
1898 |
|
57 |
|
in |
1912 |
|
|
| Month Avg Max Temperature |
|
75.0 |
|
74.0 |
|
77.0 |
|
-2.0 |
|
91.0 |
|
in |
2010 |
|
65.0 |
|
in |
1912 |
|
|
| Month
Avg Min Temperature |
|
68.0 |
|
54.0 |
|
62.0 |
|
+6.0 |
|
73.0 |
|
in |
1959 |
|
48.0 |
|
in |
1975 |
|
|
| Month Average
Temperature |
|
72.0 |
|
64.0 |
|
69.0 |
|
+3.0 |
|
82.0 |
|
in |
1898 |
|
57.0 |
|
in |
1912 |
|
|
| High
Heat Index |
|
77 |
|
74 |
|
78 |
|
-1 |
|
98 |
|
in |
2010 |
|
|
|
|
|
|
|
| Low
Wind Chill |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
46 |
|
in |
1975 |
|
|
| Heating Degree Days |
|
0 |
|
1 |
|
1 |
|
-1 |
|
8 |
|
in |
1912 |
|
0 |
|
in |
2024 |
|
|
| Month Heating DD |
|
0 |
|
1 |
|
1 |
|
-1 |
|
8 |
|
in |
1912 |
|
0 |
|
in |
2024 |
|
|
| Season
Heating DD |
|
2 |
|
1 |
|
8 |
|
-6 |
|
42 |
|
in |
1905 |
|
0 |
|
in |
2022 |
|
|
| Cooling Degree Days |
|
7 |
|
0 |
|
5 |
|
+2 |
|
17 |
|
in |
1898 |
|
0 |
|
in |
2023 |
|
|
| Month Cooling DD |
|
7 |
|
0 |
|
5 |
|
+2 |
|
17 |
|
in |
1898 |
|
0 |
|
in |
2023 |
|
|
| Year Cooling DD |
|
653 |
|
572 |
|
542 |
|
+111 |
|
770 |
|
in |
2020 |
|
260 |
|
in |
1902 |
|
|
| Maximum Dew Point |
|
72 |
|
59 |
|
66 |
|
+6 |
|
75 |
|
in |
2014 |
|
45 |
|
in |
1970 |
|
|
| Minimum
Dew Point |
|
68 |
|
49 |
|
57 |
|
+11 |
|
72 |
|
in |
1959 |
|
34 |
|
in |
1991 |
|
|
| Average Dew Point |
|
70 |
|
54 |
|
61 |
|
+9 |
|
73 |
|
in |
2014 |
|
41 |
|
in |
1991 |
|
|
| Month Avg Max Dew Point |
|
72.0 |
|
59.0 |
|
66.0 |
|
+6.0 |
|
75.0 |
|
in |
2014 |
|
45.0 |
|
in |
1970 |
|
|
| Month
Avg Min Dew Point |
|
68.0 |
|
49.0 |
|
57.0 |
|
+11.0 |
|
72.0 |
|
in |
1959 |
|
34.0 |
|
in |
1991 |
|
|
| Month Average Dew Point |
|
70.0 |
|
54.0 |
|
61.0 |
|
+9.0 |
|
73.0 |
|
in |
2014 |
|
40.5 |
|
in |
1991 |
|
|
| Precipitation |
|
.06 |
|
.00 |
|
.11 |
|
-.05 |
|
2.15 |
|
in |
1982 |
|
|
|
|
|
|
|
| One
Hour Rain |
|
.03 |
|
.00 |
|
|
|
|
|
.94 |
|
in |
1949 |
|
|
|
|
|
|
|
| Half
Hour Rain |
|
.03 |
|
.00 |
|
|
|
|
|
.54 |
|
in |
2021 |
|
|
|
|
|
|
|
| Hourly Rain Rate |
|
.08 |
|
.00 |
|
|
|
|
|
3.92 |
|
in |
2021 |
|
|
|
|
|
|
|
| Month Precipitation |
|
.06 |
|
.00 |
|
.11 |
|
-.05 |
|
2.15 |
|
in |
1982 |
|
.00 |
|
in |
2022 |
|
|
| Year Precipitation |
|
40.75 |
|
35.62 |
|
29.52 |
|
+11.23 |
|
45.30 |
|
in |
1998 |
|
16.54 |
|
in |
1957 |
|
|
| Snow |
|
0.0 |
|
0.0 |
|
0.0 |
|
+0.0 |
|
0.0 |
|
in |
1900 |
|
|
|
|
|
|
|
| Snow Depth |
|
0 |
|
0 |
|
0 |
|
+0 |
|
0 |
|
in |
|
|
|
|
|
|
|
|
| Month Snow |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
in |
#N/A |
|
#N/A |
|
in |
Many |
|
|
| Season Snow |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
September
1, 2024 |
|
|
Record |
Record |
|
| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
|
| Maximum Humidity |
|
99% |
|
93% |
|
92% |
|
+7% |
|
100% |
|
in |
2003 |
|
63% |
|
in |
1953 |
|
|
| Minimum
Humidity |
|
89% |
|
49% |
|
56% |
|
+33% |
|
93% |
|
in |
2013 |
|
29% |
|
in |
1963 |
|
|
| Average Humidity |
|
94% |
|
71% |
|
74% |
|
+20% |
|
96% |
|
in |
2013 |
|
48% |
|
in |
1953 |
|
|
| Maximum Barometer |
|
29.97 |
|
30.28 |
|
30.11 |
|
-00.14 |
|
30.50 |
|
in |
2002 |
|
29.82 |
|
in |
1995 |
|
|
| Minimum
Barometer |
|
29.82 |
|
30.11 |
|
29.92 |
|
-00.10 |
|
30.29 |
|
in |
2018 |
|
29.57 |
|
in |
2005 |
|
|
| Average Barometer |
|
29.90 |
|
30.20 |
|
30.02 |
|
-00.12 |
|
30.38 |
|
in |
2002 |
|
29.73 |
|
in |
2005 |
|
|
| Average
Wind |
|
6.3 |
|
5.1 |
|
5.8 |
|
+0.5 |
|
15.4 |
|
in |
1965 |
|
1.9 |
|
in |
1966 |
|
|
| Direction |
|
SSW |
|
NNW |
|
ssw |
|
|
|
S |
|
|
|
|
SE |
|
|
|
|
|
| High
Wind Gust |
|
23 |
|
16 |
|
20 |
|
+3 |
|
39 |
|
in |
1965 |
|
10 |
|
in |
1966 |
|
|
| Direction |
|
SSW |
|
N |
|
SSE |
|
|
|
S |
|
|
|
|
S |
|
|
|
|
|
| Maximum Water Temp |
|
70.7 |
|
69.1 |
|
70.9 |
|
-0.2 |
|
75.6 |
|
in |
2010 |
|
66.2 |
|
in |
2003 |
|
|
| Minimum
Water Temp |
|
69.6 |
|
67.6 |
|
68.7 |
|
+0.9 |
|
73.6 |
|
in |
2021 |
|
65.4 |
|
in |
2003 |
|
|
| Average Water Temp |
|
70.2 |
|
68.4 |
|
69.8 |
|
+0.4 |
|
74.5 |
|
in |
2021 |
|
65.8 |
|
in |
2003 |
|
|
| Sunrise/ AM Twilight |
|
6:11:41 AM |
|
5:43:32 AM |
|
|
|
|
|
|
|
| Sunset
/ PM Twilight |
|
7:17:15 PM |
|
7:46:42 PM |
|
|
|
|
|
|
|
| Length Of Day |
|
13:05:34 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special
Conditions |
|
Dense Fog |
|
|
| Comments |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For September 1, 2024 |
|
| Climate Weather for September 1 |
|
| Weather History For September 1 |
|
| Weather Calendar |
|
| Back To Weather Stat Page |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|