| Portsmouth Rhode Island Weather Almanac |
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| Saturday,
September 21, 2024 |
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| Cloudy,
Moderate Rain and Fog, Continued Very Windy and Cool |
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Climate
Normal Period |
Climate Record Period |
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|
1991 -
2020 |
1893 - 2024 |
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September 21, 2024 |
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Record |
|
Record |
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| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
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| Maximum Temperature |
|
61 |
|
73 |
|
70 |
|
-9 |
|
88 |
|
in |
1914 |
|
57 |
|
in |
1993 |
|
|
| Minimum
Temperature |
|
58 |
|
54 |
|
56 |
|
+2 |
|
69 |
|
in |
1989 |
|
36 |
|
in |
1956 |
|
|
| Average Temperature |
|
60 |
|
64 |
|
63 |
|
-3 |
|
75 |
|
in |
1989 |
|
48 |
|
in |
1956 |
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|
| Month Avg Max Temperature |
|
74.6 |
|
78.5 |
|
73.5 |
|
+1.1 |
|
81.1 |
|
in |
1983 |
|
68.4 |
|
in |
1913 |
|
|
| Month
Avg Min Temperature |
|
57.6 |
|
63.3 |
|
58.7 |
|
-1.0 |
|
63.6 |
|
in |
1915 |
|
53.0 |
|
in |
1984 |
|
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| Month Average
Temperature |
|
66.3 |
|
71.2 |
|
66.0 |
|
+0.2 |
|
71.8 |
|
in |
1961 |
|
61.8 |
|
in |
1963 |
|
|
| High
Heat Index |
|
61 |
|
73 |
|
70 |
|
-9 |
|
88 |
|
in |
1914 |
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|
|
|
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|
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| Low
Wind Chill |
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|
31 |
|
in |
1956 |
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| Heating Degree Days |
|
5 |
|
1 |
|
3 |
|
+2 |
|
17 |
|
in |
1956 |
|
0 |
|
in |
2021 |
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|
| Month Heating DD |
|
15 |
|
6 |
|
35 |
|
-20 |
|
96 |
|
in |
1956 |
|
0 |
|
in |
1971 |
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| Season
Heating DD |
|
17 |
|
6 |
|
42 |
|
-25 |
|
127 |
|
in |
1956 |
|
2 |
|
in |
2021 |
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| Cooling Degree Days |
|
0 |
|
0 |
|
1 |
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-1 |
|
10 |
|
in |
1989 |
|
0 |
|
in |
2024 |
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| Month Cooling DD |
|
42 |
|
136 |
|
57 |
|
-15 |
|
158 |
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in |
1961 |
|
7 |
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in |
1893 |
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| Year Cooling DD |
|
688 |
|
708 |
|
594 |
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+94 |
|
840 |
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in |
2020 |
|
282 |
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in |
1902 |
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| Maximum Dew Point |
|
60 |
|
60 |
|
62 |
|
-2 |
|
71 |
|
in |
2014 |
|
37 |
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in |
1962 |
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| Minimum
Dew Point |
|
57 |
|
50 |
|
51 |
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+6 |
|
68 |
|
in |
1989 |
|
28 |
|
in |
1962 |
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| Average Dew Point |
|
59 |
|
55 |
|
56 |
|
+3 |
|
69 |
|
in |
1989 |
|
33 |
|
in |
1962 |
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| Month Avg Max Dew Point |
|
64.0 |
|
69.3 |
|
63.8 |
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+0.2 |
|
69.3 |
|
in |
2023 |
|
54.9 |
|
in |
1984 |
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| Month
Avg Min Dew Point |
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54.0 |
|
61.0 |
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54.2 |
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-0.1 |
|
61.0 |
|
in |
2023 |
|
44.2 |
|
in |
1984 |
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| Month Average Dew Point |
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59.3 |
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65.3 |
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58.9 |
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+0.4 |
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65.3 |
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in |
2023 |
|
49.5 |
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in |
1984 |
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| Precipitation |
|
.88 |
|
.00 |
|
.13 |
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+.75 |
|
6.52 |
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in |
1961 |
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| One
Hour Rain |
|
.21 |
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.00 |
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|
.80 |
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in |
1961 |
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| Half
Hour Rain |
|
.11 |
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.00 |
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|
.11 |
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in |
2024 |
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| Hourly Rain Rate |
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.34 |
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.00 |
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1.42 |
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in |
2011 |
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| Month Precipitation |
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1.69 |
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3.85 |
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2.58 |
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-.89 |
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9.58 |
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in |
1960 |
|
.10 |
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in |
1946 |
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| Year Precipitation |
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42.38 |
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39.47 |
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31.99 |
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+10.39 |
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46.35 |
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in |
1998 |
|
17.53 |
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in |
1957 |
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| Snow |
|
0.0 |
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0.0 |
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0.0 |
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+0.0 |
|
0.0 |
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in |
1900 |
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| Snow Depth |
|
0 |
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0 |
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0 |
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+0 |
|
0 |
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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 |
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#N/A |
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in |
Many |
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| Season Snow |
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September
21, 2024 |
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|
Record |
Record |
|
| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
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| Maximum Humidity |
|
99% |
|
93% |
|
93% |
|
+6% |
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100% |
|
in |
2016 |
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67% |
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in |
1984 |
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| Minimum
Humidity |
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96% |
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50% |
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61% |
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+35% |
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96% |
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in |
2024 |
|
32% |
|
in |
2020 |
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| Average Humidity |
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98% |
|
72% |
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77% |
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+20% |
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98% |
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in |
2024 |
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51% |
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in |
1984 |
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| Maximum Barometer |
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29.97 |
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30.30 |
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30.14 |
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-00.17 |
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30.56 |
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in |
2020 |
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29.62 |
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in |
1976 |
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| Minimum
Barometer |
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29.89 |
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30.16 |
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29.92 |
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-00.03 |
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30.34 |
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in |
2020 |
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28.77 |
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in |
1938 |
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| Average Barometer |
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29.93 |
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30.23 |
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30.03 |
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-00.10 |
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30.45 |
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in |
2020 |
|
29.50 |
|
in |
1976 |
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| Average
Wind |
|
16.5 |
|
5.2 |
|
6.2 |
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+10.3 |
|
22.5 |
|
in |
1961 |
|
1.2 |
|
in |
1994 |
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| Direction |
|
N |
|
NNW |
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SSW |
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|
NNE |
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|
WSW |
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| High
Wind Gust |
|
36 |
|
15 |
|
20 |
|
+16 |
|
116 |
|
in |
1938 |
|
9 |
|
in |
1994 |
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| Direction |
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N |
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N |
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SSW |
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SE |
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SSE |
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| Maximum Water Temp |
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66.0 |
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67.6 |
|
68.0 |
|
-2.0 |
|
71.2 |
|
in |
2021 |
|
65.1 |
|
in |
2020 |
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| Minimum
Water Temp |
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64.9 |
|
66.2 |
|
66.1 |
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-1.2 |
|
69.3 |
|
in |
2022 |
|
63.7 |
|
in |
2020 |
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| Average Water Temp |
|
65.5 |
|
66.9 |
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67.1 |
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-1.6 |
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70.1 |
|
in |
2021 |
|
64.4 |
|
in |
2020 |
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| Sunrise/ AM Twilight |
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6:32:01 AM |
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6:04:33 AM |
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| Sunset
/ PM Twilight |
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6:43:02 PM |
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7:11:46 PM |
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| Length Of Day |
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12:11:01 |
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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 21, 2024 |
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| Climate Weather for September 21 |
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| Weather History For September 21 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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