| Portsmouth Rhode Island Weather Almanac |
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| Tuesday, July
15, 2025 |
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| Cloudy, Light
Rain early, Partly Cloudy Day to Mostly Cloudy PM, Hot and Very Muggy |
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Climate
Normal Period |
Climate Record Period |
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|
1991 -
2020 |
1893 - 2025 |
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July 15 |
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|
Record |
|
Record |
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| Observed Daily Data |
|
2025 |
|
2024 |
|
Norm |
|
Depart |
|
Highest |
|
Lowest |
|
|
| Maximum Temperature |
|
87 |
|
86 |
|
80 |
|
+7 |
|
91 |
|
in |
2013 |
|
64 |
|
in |
1926 |
|
|
| Minimum
Temperature |
|
73 |
|
71 |
|
65 |
|
+8 |
|
75 |
|
in |
2013 |
|
54 |
|
in |
1999 |
|
|
| Average Temperature |
|
80 |
|
79 |
|
73 |
|
+7 |
|
83 |
|
in |
2013 |
|
62 |
|
in |
1926 |
|
|
| Month Avg Max Temperature |
|
80.8 |
|
81.3 |
|
79.5 |
|
+1.3 |
|
85.5 |
|
in |
1993 |
|
73.1 |
|
in |
1914 |
|
|
| Month Avg
Min Temperature |
|
66.5 |
|
68.5 |
|
64.1 |
|
+2.3 |
|
70.5 |
|
in |
2013 |
|
57.5 |
|
in |
1962 |
|
|
| Month Average
Temperature |
|
73.9 |
|
75.1 |
|
72.1 |
|
+1.8 |
|
76.3 |
|
in |
2013 |
|
66.1 |
|
in |
1914 |
|
|
| High Heat
Index |
|
98 |
|
98 |
|
|
|
|
|
101 |
|
in |
1997 |
|
|
|
|
|
|
|
| Low Wind Chill |
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|
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|
|
|
|
|
|
|
|
|
|
|
0 |
|
in |
|
|
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| Heating Degree Days |
|
0 |
|
0 |
|
0 |
|
+0 |
|
3 |
|
in |
1926 |
|
0 |
|
in |
Many |
|
|
| Month Heating DD |
|
0 |
|
0 |
|
3 |
|
-3 |
|
23 |
|
in |
1914 |
|
0 |
|
in |
Many |
|
|
| Season
Heating DD |
|
0 |
|
0 |
|
3 |
|
-3 |
|
23 |
|
in |
1914 |
|
0 |
|
in |
Many |
|
|
| Cooling Degree Days |
|
15 |
|
14 |
|
8 |
|
+7 |
|
18 |
|
in |
2013 |
|
0 |
|
in |
1961 |
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| Month Cooling DD |
|
134 |
|
152 |
|
107 |
|
+27 |
|
169 |
|
in |
2013 |
|
31 |
|
in |
2009 |
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| Year Cooling DD |
|
289 |
|
290 |
|
200 |
|
+89 |
|
302 |
|
in |
2010 |
|
65 |
|
in |
2009 |
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| Maximum Dew Point |
|
78 |
|
78 |
|
69 |
|
+9 |
|
78 |
|
in |
2025 |
|
56 |
|
in |
1981 |
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| Minimum
Dew Point |
|
72 |
|
71 |
|
60 |
|
+12 |
|
72 |
|
in |
2025 |
|
43 |
|
in |
1954 |
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| Average Dew Point |
|
75 |
|
75 |
|
65 |
|
+10 |
|
75 |
|
in |
2025 |
|
53 |
|
in |
1991 |
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| Month Avg Max Dew Point |
|
73.1 |
|
73.8 |
|
68.1 |
|
+4.9 |
|
74.7 |
|
in |
2023 |
|
59.0 |
|
in |
1978 |
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| Month Avg
Min Dew Point |
|
64.5 |
|
66.7 |
|
59.5 |
|
+5.1 |
|
68.2 |
|
in |
2013 |
|
49.7 |
|
in |
1962 |
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| Month Average Dew Point |
|
68.8 |
|
70.2 |
|
63.8 |
|
+5.0 |
|
71.1 |
|
in |
2013 |
|
54.7 |
|
in |
1978 |
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| Precipitation |
|
.01 |
|
.00 |
|
.09 |
|
-.08 |
|
1.83 |
|
in |
1973 |
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|
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|
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| One Hour
Rain |
|
.01 |
|
.00 |
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|
1.33 |
|
in |
2015 |
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| Half Hour
Rain |
|
.01 |
|
.00 |
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|
.92 |
|
in |
2015 |
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| Hourly Rain Rate |
|
.00 |
|
.00 |
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10.29 |
|
in |
2015 |
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| Month Precipitation |
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1.81 |
|
.90 |
|
1.55 |
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+.26 |
|
4.93 |
|
in |
1959 |
|
T |
|
in |
1982 |
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| Year Precipitation |
|
23.18 |
|
34.85 |
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24.25 |
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-1.07 |
|
40.76 |
|
in |
1998 |
|
13.52 |
|
in |
1957 |
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| Snow |
|
0.0 |
|
0.0 |
|
#N/A |
|
#N/A |
|
0.0 |
|
in |
1900 |
|
0.0 |
|
in |
Many |
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| Snow Depth |
|
0 |
|
0 |
|
0 |
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|
0 |
|
in |
1900 |
|
0 |
|
in |
Many |
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| Month Snow |
|
0.0 |
|
0.0 |
|
T |
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#N/A |
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in |
#N/A |
|
0.0 |
|
in |
Many |
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| Season Snow |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
#N/A |
|
in |
#N/A |
|
#N/A |
|
in |
#N/A |
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July 15 |
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Record |
Record |
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| Observed Daily Data |
|
2025 |
|
2024 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
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| Maximum Humidity |
|
97% |
|
99% |
|
93% |
|
+4% |
|
100% |
|
in |
2016 |
|
68% |
|
in |
1966 |
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| Minimum
Humidity |
|
69% |
|
74% |
|
60% |
|
+9% |
|
92% |
|
in |
2014 |
|
29% |
|
in |
1991 |
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| Average Humidity |
|
83% |
|
87% |
|
77% |
|
+6% |
|
96% |
|
in |
2014 |
|
52% |
|
in |
1991 |
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| Maximum Barometer |
|
30.08 |
|
29.95 |
|
30.02 |
|
+00.06 |
|
30.31 |
|
in |
1975 |
|
29.68 |
|
in |
2004 |
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| Minimum
Barometer |
|
30.02 |
|
29.80 |
|
29.84 |
|
+00.18 |
|
30.12 |
|
in |
1959 |
|
29.44 |
|
in |
1954 |
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| Average Barometer |
|
30.05 |
|
29.88 |
|
29.93 |
|
+00.12 |
|
30.21 |
|
in |
1975 |
|
29.57 |
|
in |
1954 |
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| Average
Wind |
|
5.9 |
|
7.0 |
|
6.0 |
|
-0.1 |
|
13.9 |
|
in |
2000 |
|
1.8 |
|
in |
2005 |
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| Direction |
|
SSW |
|
S |
|
SW |
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|
ESE |
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|
SSE |
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| High Wind
Gust |
|
20 |
|
24 |
|
21 |
|
-1 |
|
38 |
|
in |
1995 |
|
9 |
|
in |
1997 |
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| Direction |
|
SSW |
|
SSW |
|
SSW |
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|
WNW |
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|
ESE |
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| Maximum Water Temp |
|
72.5 |
|
76.8 |
|
70.8 |
|
+1.7 |
|
76.8 |
|
in |
2024 |
|
66.0 |
|
in |
2020 |
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| Minimum
Water Temp |
|
69.4 |
|
74.3 |
|
67.2 |
|
+2.2 |
|
74.3 |
|
in |
2024 |
|
62.1 |
|
in |
2003 |
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| Average Water Temp |
|
71.0 |
|
75.6 |
|
69.0 |
|
+1.9 |
|
75.6 |
|
in |
2024 |
|
65.1 |
|
in |
2020 |
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| Sunrise/ AM Twilight |
|
5:24:25 AM |
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4:52:48 AM |
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| Sunset /
PM Twilight |
|
8:17:21 PM |
|
8:49:54 PM |
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| Length Of Day |
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14:53:40 |
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| Special
Conditions |
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None |
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| Comments |
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Record High Dew Points |
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| Hour-by-Hour Weather For July 15, 2025 |
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| Climate Weather for July 15 |
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| Weather History For July 15 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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