| Portsmouth Rhode Island Weather Almanac |
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| Sunday,
August 18, 2024 |
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| Cloudy,
Light Rain Late, Foggy, Light Winds, Seasonal Temperatures |
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Climate
Normal Period |
Climate Record Period |
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1991 -
2020 |
1893 - 2024 |
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August 18, 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 |
|
76 |
|
79 |
|
78 |
|
-2 |
|
93 |
|
in |
1987 |
|
64 |
|
in |
1919 |
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|
| Minimum
Temperature |
|
64 |
|
66 |
|
64 |
|
+0 |
|
74 |
|
in |
1965 |
|
52 |
|
in |
1979 |
|
|
| Average Temperature |
|
70 |
|
73 |
|
71 |
|
-1 |
|
82 |
|
in |
1987 |
|
60 |
|
in |
1979 |
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| Month Avg Max Temperature |
|
80.3 |
|
78.6 |
|
79.2 |
|
+1.2 |
|
84.3 |
|
in |
1939 |
|
72.3 |
|
in |
1964 |
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| Month
Avg Min Temperature |
|
65.2 |
|
64.5 |
|
64.5 |
|
+0.7 |
|
71.3 |
|
in |
1988 |
|
55.8 |
|
in |
1964 |
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| Month Average
Temperature |
|
73.0 |
|
71.8 |
|
71.8 |
|
+1.2 |
|
78.1 |
|
in |
1988 |
|
64.4 |
|
in |
1964 |
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|
| High
Heat Index |
|
79 |
|
83 |
|
80 |
|
-1 |
|
97 |
|
in |
2009 |
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| Low
Wind Chill |
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| Heating Degree Days |
|
0 |
|
0 |
|
0 |
|
+0 |
|
5 |
|
in |
1979 |
|
0 |
|
in |
2024 |
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| Month Heating DD |
|
1 |
|
0 |
|
0 |
|
+1 |
|
24 |
|
in |
1964 |
|
0 |
|
in |
2023 |
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| Season
Heating DD |
|
1 |
|
0 |
|
3 |
|
-2 |
|
34 |
|
in |
1914 |
|
0 |
|
in |
2023 |
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| Cooling Degree Days |
|
5 |
|
8 |
|
7 |
|
-2 |
|
17 |
|
in |
1987 |
|
0 |
|
in |
2000 |
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| Month Cooling DD |
|
145 |
|
123 |
|
133 |
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+12 |
|
235 |
|
in |
1988 |
|
13 |
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in |
1964 |
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| Year Cooling DD |
|
587 |
|
510 |
|
461 |
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+126 |
|
663 |
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in |
2020 |
|
208 |
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in |
1902 |
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| Maximum Dew Point |
|
72 |
|
75 |
|
68 |
|
+4 |
|
76 |
|
in |
1955 |
|
53 |
|
in |
1981 |
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| Minimum
Dew Point |
|
63 |
|
58 |
|
59 |
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+4 |
|
73 |
|
in |
1955 |
|
42 |
|
in |
1981 |
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| Average Dew Point |
|
68 |
|
67 |
|
64 |
|
+4 |
|
75 |
|
in |
1955 |
|
48 |
|
in |
1981 |
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| Month Avg Max Dew Point |
|
70.9 |
|
69.1 |
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68.7 |
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+2.3 |
|
74.2 |
|
in |
2018 |
|
57.8 |
|
in |
1964 |
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| Month
Avg Min Dew Point |
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63.3 |
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59.8 |
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60.6 |
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+2.7 |
|
68.0 |
|
in |
2018 |
|
47.3 |
|
in |
1964 |
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| Month Average Dew Point |
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67.1 |
|
64.4 |
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64.6 |
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+2.5 |
|
71.1 |
|
in |
2018 |
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52.5 |
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in |
1964 |
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| Precipitation |
|
.05 |
|
.58 |
|
.12 |
|
-.07 |
|
1.55 |
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in |
1955 |
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| One
Hour Rain |
|
.05 |
|
.55 |
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|
.81 |
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in |
1955 |
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| Half
Hour Rain |
|
.04 |
|
.55 |
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|
.68 |
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in |
2018 |
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| Hourly Rain Rate |
|
.19 |
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6.19 |
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6.62 |
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in |
2018 |
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| Month Precipitation |
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1.39 |
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4.15 |
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2.15 |
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-.76 |
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8.35 |
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in |
1992 |
|
.08 |
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in |
1940 |
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| Year Precipitation |
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39.66 |
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34.40 |
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27.93 |
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+11.73 |
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43.94 |
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in |
1983 |
|
15.70 |
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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 |
|
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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August
18, 2024 |
|
|
Record |
Record |
|
| Observed Daily Data |
|
2024 |
|
2023 |
|
Norm |
|
Depart |
|
Highest |
Lowest |
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| Maximum Humidity |
|
98% |
|
99% |
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93% |
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+5% |
|
100% |
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in |
2019 |
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73% |
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in |
1954 |
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| Minimum
Humidity |
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85% |
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74% |
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57% |
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+28% |
|
96% |
|
in |
1986 |
|
30% |
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in |
1988 |
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| Average Humidity |
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92% |
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87% |
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75% |
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+16% |
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98% |
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in |
1986 |
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55% |
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in |
1954 |
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| Maximum Barometer |
|
30.00 |
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29.96 |
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30.04 |
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-00.04 |
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30.37 |
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in |
1989 |
|
29.75 |
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in |
1958 |
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| Minimum
Barometer |
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29.82 |
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29.64 |
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29.84 |
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-00.02 |
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30.20 |
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in |
1961 |
|
29.45 |
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in |
1988 |
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| Average Barometer |
|
29.91 |
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29.80 |
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29.94 |
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-00.03 |
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30.28 |
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in |
1961 |
|
29.66 |
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in |
1958 |
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| Average
Wind |
|
4.9 |
|
6.5 |
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5.6 |
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-0.7 |
|
12.5 |
|
in |
1988 |
|
1.4 |
|
in |
1992 |
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| Direction |
|
SE |
|
SSW |
|
WNW |
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NNW |
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WNW |
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| High
Wind Gust |
|
13 |
|
28 |
|
20 |
|
-7 |
|
33 |
|
in |
1991 |
|
9 |
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in |
2010 |
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| Direction |
|
SSE |
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SSE |
|
S |
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SW |
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NNW |
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| Maximum Water Temp |
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72.0 |
|
71.1 |
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71.9 |
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+0.1 |
|
75.4 |
|
in |
2012 |
|
67.6 |
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in |
2020 |
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| Minimum
Water Temp |
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70.0 |
|
69.6 |
|
68.9 |
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+1.1 |
|
73.4 |
|
in |
2018 |
|
64.0 |
|
in |
2008 |
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| Average Water Temp |
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71.0 |
|
70.4 |
|
70.4 |
|
+0.6 |
|
74.2 |
|
in |
2018 |
|
66.7 |
|
in |
2020 |
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| Sunrise/ AM Twilight |
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5:57:25 AM |
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4:55:37 AM |
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| Sunset
/ PM Twilight |
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7:39:23 PM |
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8:47:33 PM |
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| Length Of Day |
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13:41:58 |
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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 August 18, 2024 |
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| Climate Weather for August 18 |
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| Weather History For August 18 |
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| Weather Calendar |
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| Back To Weather Stat Page |
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