| Portsmouth Rhode Island Weather Almanac |
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| Thursday,
September 12, 2024 |
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| Clear,
Morning Fog, Very Light Winds, Warmer |
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Climate
Normal Period |
Climate Record Period |
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| |
|
1991 -
2020 |
1893 - 2024 |
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September 12, 2024 |
|
Record |
|
Record |
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| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
| Maximum Temperature |
|
77 |
|
81 |
|
73 |
|
+4 |
|
87 |
|
in |
1961 |
|
60 |
|
in |
1950 |
|
|
| Minimum
Temperature |
|
55 |
|
68 |
|
58 |
|
-3 |
|
71 |
|
in |
1947 |
|
45 |
|
in |
1985 |
|
|
| Average Temperature |
|
66 |
|
75 |
|
66 |
|
+0 |
|
79 |
|
in |
1961 |
|
54 |
|
in |
1967 |
|
|
| Month Avg Max Temperature |
|
75.6 |
|
82.8 |
|
74.8 |
|
+0.8 |
|
85.2 |
|
in |
1983 |
|
68.4 |
|
in |
1917 |
|
|
| Month
Avg Min Temperature |
|
57.0 |
|
66.7 |
|
59.9 |
|
-2.9 |
|
66.8 |
|
in |
1961 |
|
51.2 |
|
in |
1893 |
|
|
| Month Average
Temperature |
|
66.4 |
|
75.0 |
|
67.4 |
|
-1.0 |
|
75.3 |
|
in |
1961 |
|
61.9 |
|
in |
1994 |
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|
| High
Heat Index |
|
76 |
|
86 |
|
74 |
|
+2 |
|
92 |
|
in |
1952 |
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|
|
|
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|
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| Low
Wind Chill |
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|
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|
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|
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|
41 |
|
in |
1985 |
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|
| Heating Degree Days |
|
0 |
|
0 |
|
1 |
|
-1 |
|
11 |
|
in |
1967 |
|
0 |
|
in |
2024 |
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| Month Heating DD |
|
7 |
|
1 |
|
12 |
|
-5 |
|
46 |
|
in |
1917 |
|
0 |
|
in |
2015 |
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| Season
Heating DD |
|
9 |
|
1 |
|
19 |
|
-10 |
|
81 |
|
in |
1914 |
|
0 |
|
in |
2015 |
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| Cooling Degree Days |
|
1 |
|
10 |
|
2 |
|
-1 |
|
14 |
|
in |
1961 |
|
0 |
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in |
2020 |
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| Month Cooling DD |
|
24 |
|
121 |
|
41 |
|
-17 |
|
124 |
|
in |
1961 |
|
0 |
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in |
1893 |
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| Year Cooling DD |
|
670 |
|
693 |
|
578 |
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+92 |
|
835 |
|
in |
2020 |
|
279 |
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in |
1902 |
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| Maximum Dew Point |
|
62 |
|
74 |
|
64 |
|
-2 |
|
74 |
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in |
2023 |
|
45 |
|
in |
1985 |
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| Minimum
Dew Point |
|
52 |
|
68 |
|
54 |
|
-2 |
|
69 |
|
in |
1961 |
|
34 |
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in |
2004 |
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| Average Dew Point |
|
57 |
|
71 |
|
59 |
|
-2 |
|
71 |
|
in |
2023 |
|
42 |
|
in |
1985 |
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| Month Avg Max Dew Point |
|
62.4 |
|
74.0 |
|
64.8 |
|
-2.3 |
|
74.0 |
|
in |
2023 |
|
55.8 |
|
in |
1984 |
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| Month
Avg Min Dew Point |
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52.0 |
|
65.6 |
|
55.5 |
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-3.5 |
|
65.6 |
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in |
2023 |
|
43.9 |
|
in |
1967 |
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| Month Average Dew Point |
|
57.4 |
|
69.9 |
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60.1 |
|
-2.7 |
|
69.9 |
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in |
2023 |
|
50.0 |
|
in |
1967 |
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| Precipitation |
|
.00 |
|
T |
|
.12 |
|
-.12 |
|
1.19 |
|
in |
1960 |
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| One
Hour Rain |
|
.00 |
|
T |
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|
.34 |
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in |
1960 |
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| Half
Hour Rain |
|
.00 |
|
.00 |
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|
.20 |
|
in |
2019 |
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| Hourly Rain Rate |
|
.00 |
|
.00 |
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1.34 |
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in |
2022 |
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| Month Precipitation |
|
.16 |
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1.61 |
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1.38 |
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-1.22 |
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7.60 |
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in |
2021 |
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T |
|
in |
2005 |
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| Year Precipitation |
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40.85 |
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37.23 |
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30.79 |
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+10.06 |
|
46.33 |
|
in |
1998 |
|
17.36 |
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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 |
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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
12, 2024 |
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|
Record |
Record |
|
| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
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| Maximum Humidity |
|
99% |
|
99% |
|
91% |
|
+8% |
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100% |
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in |
2018 |
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74% |
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in |
2002 |
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| Minimum
Humidity |
|
47% |
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78% |
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57% |
|
-10% |
|
97% |
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in |
2022 |
|
23% |
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in |
2004 |
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| Average Humidity |
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73% |
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89% |
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74% |
|
-1% |
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98% |
|
in |
2022 |
|
55% |
|
in |
2002 |
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| Maximum Barometer |
|
30.29 |
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30.00 |
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30.13 |
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+00.16 |
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30.52 |
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in |
1966 |
|
29.77 |
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in |
1968 |
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| Minimum
Barometer |
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30.21 |
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29.95 |
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29.90 |
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+00.31 |
|
30.30 |
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in |
2003 |
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28.66 |
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in |
1960 |
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| Average Barometer |
|
30.25 |
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29.98 |
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30.01 |
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+00.24 |
|
30.34 |
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in |
2012 |
|
29.29 |
|
in |
1960 |
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| Average
Wind |
|
2.2 |
|
3.0 |
|
6.3 |
|
-4.1 |
|
22.8 |
|
in |
1960 |
|
1.8 |
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in |
2022 |
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| Direction |
|
S |
|
SSW |
|
SSW |
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SSE |
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|
ENE |
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| High
Wind Gust |
|
10 |
|
13 |
|
22 |
|
-12 |
|
81 |
|
in |
1960 |
|
7 |
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in |
2022 |
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| Direction |
|
S |
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S |
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SSW |
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SSE |
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NE |
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| Maximum Water Temp |
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69.6 |
|
74.3 |
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69.4 |
|
+0.2 |
|
74.3 |
|
in |
2023 |
|
65.1 |
|
in |
2006 |
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| Minimum
Water Temp |
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67.5 |
|
71.4 |
|
67.5 |
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+0.0 |
|
71.4 |
|
in |
2023 |
|
63.3 |
|
in |
2006 |
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| Average Water Temp |
|
68.6 |
|
72.9 |
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68.5 |
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+0.1 |
|
72.9 |
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in |
2023 |
|
64.2 |
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in |
2006 |
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| Sunrise/ AM Twilight |
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6:22:50 AM |
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5:55:10 AM |
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| Sunset
/ PM Twilight |
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6:58:36 PM |
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7:27:34 PM |
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| Length Of Day |
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12:35:46 |
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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 12, 2024 |
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| Climate Weather for September 12 |
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| Weather History For September 12 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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