| Portsmouth Rhode Island Weather Almanac |
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| Friday,
September 20, 2024 |
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| Cloudy,
Rainy, Fog, Very Windy, Much Cooler |
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Climate
Normal Period |
Climate Record Period |
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| |
|
1991 -
2020 |
1893 - 2024 |
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|
September 20, 2024 |
|
Record |
|
Record |
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| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
| Maximum Temperature |
|
66 |
|
74 |
|
71 |
|
-5 |
|
85 |
|
in |
1983 |
|
59 |
|
in |
1993 |
|
|
| Minimum
Temperature |
|
59 |
|
55 |
|
56 |
|
+3 |
|
69 |
|
in |
1938 |
|
38 |
|
in |
1979 |
|
|
| Average Temperature |
|
63 |
|
65 |
|
63 |
|
+0 |
|
76 |
|
in |
1983 |
|
50 |
|
in |
1979 |
|
|
| Month Avg Max Temperature |
|
75.3 |
|
78.8 |
|
73.7 |
|
+1.6 |
|
81.3 |
|
in |
1983 |
|
68.4 |
|
in |
1913 |
|
|
| Month
Avg Min Temperature |
|
57.6 |
|
63.8 |
|
58.8 |
|
-1.2 |
|
64.0 |
|
in |
1915 |
|
52.9 |
|
in |
1984 |
|
|
| Month Average
Temperature |
|
66.6 |
|
71.6 |
|
66.2 |
|
+0.4 |
|
72.0 |
|
in |
1961 |
|
61.8 |
|
in |
1913 |
|
|
| High
Heat Index |
|
66 |
|
73 |
|
71 |
|
-5 |
|
88 |
|
in |
1983 |
|
|
|
|
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|
|
| Low
Wind Chill |
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|
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|
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|
36 |
|
in |
1979 |
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|
| Heating Degree Days |
|
2 |
|
0 |
|
3 |
|
-1 |
|
15 |
|
in |
1979 |
|
0 |
|
in |
2023 |
|
|
| Month Heating DD |
|
10 |
|
5 |
|
32 |
|
-22 |
|
95 |
|
in |
1913 |
|
0 |
|
in |
2015 |
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|
| Season
Heating DD |
|
12 |
|
5 |
|
39 |
|
-27 |
|
110 |
|
in |
1956 |
|
0 |
|
in |
2015 |
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|
| Cooling Degree Days |
|
0 |
|
0 |
|
1 |
|
-1 |
|
11 |
|
in |
1983 |
|
0 |
|
in |
2024 |
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| Month Cooling DD |
|
42 |
|
136 |
|
56 |
|
-14 |
|
155 |
|
in |
1961 |
|
7 |
|
in |
1893 |
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| Year Cooling DD |
|
688 |
|
708 |
|
593 |
|
+95 |
|
840 |
|
in |
2020 |
|
282 |
|
in |
1902 |
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| Maximum Dew Point |
|
65 |
|
61 |
|
62 |
|
+3 |
|
74 |
|
in |
1989 |
|
38 |
|
in |
1993 |
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| Minimum
Dew Point |
|
58 |
|
52 |
|
52 |
|
+6 |
|
66 |
|
in |
2016 |
|
26 |
|
in |
1993 |
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| Average Dew Point |
|
62 |
|
57 |
|
57 |
|
+5 |
|
69 |
|
in |
2016 |
|
32 |
|
in |
1993 |
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| Month Avg Max Dew Point |
|
64.2 |
|
69.8 |
|
63.9 |
|
+0.3 |
|
69.8 |
|
in |
2023 |
|
54.9 |
|
in |
1984 |
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| Month
Avg Min Dew Point |
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53.9 |
|
61.6 |
|
54.4 |
|
-0.5 |
|
61.6 |
|
in |
2023 |
|
44.5 |
|
in |
1984 |
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| Month Average Dew Point |
|
59.3 |
|
65.9 |
|
59.1 |
|
+0.3 |
|
65.9 |
|
in |
2023 |
|
49.7 |
|
in |
1984 |
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| Precipitation |
|
.62 |
|
.00 |
|
.13 |
|
+.49 |
|
7.81 |
|
in |
1960 |
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| One
Hour Rain |
|
.19 |
|
.00 |
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|
1.65 |
|
in |
1960 |
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| Half
Hour Rain |
|
.10 |
|
.00 |
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|
.21 |
|
in |
2006 |
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| Hourly Rain Rate |
|
.18 |
|
.00 |
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|
1.48 |
|
in |
2006 |
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| Month Precipitation |
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.81 |
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3.85 |
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2.45 |
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-1.64 |
|
9.57 |
|
in |
1960 |
|
.06 |
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in |
1946 |
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| Year Precipitation |
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41.50 |
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39.47 |
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31.86 |
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+9.64 |
|
46.35 |
|
in |
1998 |
|
17.53 |
|
in |
1957 |
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| Snow |
|
0.0 |
|
0.0 |
|
0.0 |
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+0.0 |
|
0.0 |
|
in |
1900 |
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| Snow Depth |
|
0 |
|
0 |
|
0 |
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+0 |
|
0 |
|
in |
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| Month Snow |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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#N/A |
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in |
#N/A |
|
#N/A |
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in |
Many |
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| Season Snow |
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|
September
20, 2024 |
|
|
Record |
Record |
|
| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
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| Maximum Humidity |
|
99% |
|
90% |
|
94% |
|
+5% |
|
100% |
|
in |
2017 |
|
66% |
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in |
1993 |
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| Minimum
Humidity |
|
91% |
|
50% |
|
61% |
|
+30% |
|
91% |
|
in |
2024 |
|
32% |
|
in |
2020 |
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| Average Humidity |
|
95% |
|
70% |
|
77% |
|
+18% |
|
96% |
|
in |
1988 |
|
50% |
|
in |
1993 |
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| Maximum Barometer |
|
29.96 |
|
30.16 |
|
30.14 |
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-00.18 |
|
30.55 |
|
in |
2020 |
|
29.61 |
|
in |
1954 |
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| Minimum
Barometer |
|
29.86 |
|
30.01 |
|
29.94 |
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-00.08 |
|
30.38 |
|
in |
2020 |
|
29.39 |
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in |
1955 |
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| Average Barometer |
|
29.91 |
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30.09 |
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30.04 |
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-00.13 |
|
30.47 |
|
in |
2020 |
|
29.56 |
|
in |
1955 |
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| Average
Wind |
|
15.7 |
|
5.8 |
|
6.4 |
|
+9.3 |
|
18.7 |
|
in |
2017 |
|
2.0 |
|
in |
2016 |
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| Direction |
|
NNE |
|
WNW |
|
SSW |
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|
NNE |
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|
SSW |
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| High
Wind Gust |
|
32 |
|
15 |
|
21 |
|
+11 |
|
41 |
|
in |
1984 |
|
9 |
|
in |
2016 |
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| Direction |
|
N |
|
WNW |
|
SSW |
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SW |
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NNW |
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| Maximum Water Temp |
|
67.6 |
|
68.5 |
|
68.1 |
|
-0.5 |
|
71.5 |
|
in |
2003 |
|
65.5 |
|
in |
2020 |
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| Minimum
Water Temp |
|
66.0 |
|
67.3 |
|
66.0 |
|
-0.0 |
|
69.8 |
|
in |
2022 |
|
63.1 |
|
in |
2004 |
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| Average Water Temp |
|
66.8 |
|
67.9 |
|
67.1 |
|
-0.3 |
|
70.4 |
|
in |
2022 |
|
64.4 |
|
in |
2004 |
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| Sunrise/ AM Twilight |
|
6:30:59 AM |
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6:03:31 AM |
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| Sunset
/ PM Twilight |
|
6:44:46 PM |
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7:13:31 PM |
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| Length Of Day |
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12:13:47 |
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| Special
Conditions |
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Fog |
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| Comments |
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| Hour-by-Hour Weather For September 20, 2024 |
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| Climate Weather for September 20 |
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| Weather History For September 20 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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