| Portsmouth Rhode Island
Weather Almanac |
|
|
|
|
|
|
|
|
| Saturday, September 21, 2019 |
|
|
|
|
|
|
|
|
| Clear, Light Winds and Much Warmer |
|
|
|
|
|
|
|
|
| Climate
Normal Period |
|
Climate Record Period |
|
|
|
|
|
|
|
|
|
| 1981- 2010 |
|
1893 - 2019 |
|
|
|
|
|
|
|
|
|
| |
|
September
21, 2019 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
Observed |
|
2018 |
|
Normal |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Temperature |
|
82 |
|
69 |
|
70 |
|
+12 |
|
88 |
|
in |
1914 |
|
57 |
|
in |
1993 |
|
|
|
|
|
|
|
|
|
| Minimum
Temperature |
|
56 |
|
55 |
|
55 |
|
+1 |
|
69 |
|
in |
1989 |
|
36 |
|
in |
1956 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
69 |
|
62 |
|
63 |
|
+6 |
|
75 |
|
in |
1989 |
|
48 |
|
in |
1956 |
|
|
|
|
|
|
|
|
|
| Precipitation |
|
.00 |
|
.00 |
|
.13 |
|
-.13 |
|
6.52 |
|
in |
1961 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| One
Hour |
|
.00 |
|
.00 |
|
|
|
|
|
.80 |
|
in |
1961 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Snow |
|
0.0 |
|
0.0 |
|
0.0 |
|
+0.0 |
|
0.0 |
|
in |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Snow Depth |
|
0 |
|
0 |
|
|
|
|
|
|
|
in |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| HDD |
|
0 |
|
3 |
|
3 |
|
-3 |
|
17 |
|
in |
1956 |
|
0 |
|
in |
2019 |
|
|
|
|
|
|
|
|
|
| CDD |
|
4 |
|
0 |
|
1 |
|
+3 |
|
10 |
|
in |
1989 |
|
0 |
|
in |
2018 |
|
|
|
|
|
|
|
|
|
| Maximum Dew Point |
|
63 |
|
65 |
|
59 |
|
+4 |
|
71 |
|
in |
2014 |
|
37 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
| Minimum
Dew Point |
|
52 |
|
53 |
|
49 |
|
+3 |
|
68 |
|
in |
1989 |
|
28 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
58 |
|
59 |
|
54 |
|
+4 |
|
69 |
|
in |
1989 |
|
33 |
|
in |
1962 |
|
|
|
|
|
|
|
|
|
| Maximum Humidity |
|
93% |
|
94% |
|
94% |
|
-1% |
|
100% |
|
in |
2016 |
|
67% |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Minimum
Humidity |
|
42% |
|
70% |
|
61% |
|
-19% |
|
93% |
|
in |
1986 |
|
34% |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Average Humidity |
|
68% |
|
82% |
|
77% |
|
-10% |
|
97% |
|
in |
1986 |
|
51% |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Maximum Barometer |
|
30.21 |
|
30.32 |
|
30.13 |
|
+00.08 |
|
30.43 |
|
in |
1969 |
|
29.62 |
|
in |
1976 |
|
|
|
|
|
|
|
|
|
| Minimum
Barometer |
|
30.13 |
|
30.01 |
|
29.91 |
|
+00.22 |
|
30.28 |
|
in |
2009 |
|
28.77 |
|
in |
1938 |
|
|
|
|
|
|
|
|
|
| Average Barometer |
|
30.17 |
|
30.17 |
|
30.02 |
|
+00.15 |
|
30.33 |
|
in |
1969 |
|
29.50 |
|
in |
1976 |
|
|
|
|
|
|
|
|
|
| Average Wind |
|
3.7 |
|
7.3 |
|
6.2 |
|
-2.5 |
|
22.5 |
|
in |
1961 |
|
1.2 |
|
in |
1994 |
|
|
|
|
|
|
|
|
|
| Direction |
|
S |
|
SSE |
|
SSW |
|
|
|
NNE |
|
|
|
|
WSW |
|
|
|
|
|
|
|
|
|
|
|
|
| High Wind Gust |
|
15 |
|
23 |
|
21 |
|
-6 |
|
116 |
|
in |
1938 |
|
9 |
|
in |
1994 |
|
|
|
|
|
|
|
|
|
| Direction |
|
S |
|
SSE |
|
SSW |
|
|
|
SE |
|
|
|
|
SSE |
|
|
|
|
|
|
|
|
|
|
|
|
| High
Heat Index |
|
83 |
|
70 |
|
71 |
|
+12 |
|
84 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Wind Chill |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Maximum Water Temp |
|
67.4 |
|
69.9 |
|
68.0 |
|
-0.6 |
|
71.1 |
|
in |
2003 |
|
65.9 |
|
in |
2013 |
|
|
|
|
|
|
|
|
|
| Minimum
Water Temp |
|
66.1 |
|
68.4 |
|
65.9 |
|
+0.2 |
|
68.4 |
|
in |
2018 |
|
64.2 |
|
in |
2013 |
|
|
|
|
|
|
|
|
|
| Average Water Temp |
|
66.8 |
|
69.2 |
|
67.0 |
|
-0.2 |
|
69.5 |
|
in |
2003 |
|
65.1 |
|
in |
2013 |
|
|
|
|
|
|
|
|
|
| Sunrise/ AM Twilight |
|
6:32:31 AM |
|
6:04:57 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sunset /
PM Twilight |
|
6:43:31 PM |
|
7:11:05 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Length Of Day |
|
12:11:00 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special Conditions |
|
None |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Comments |
|
|
|
|
|
|
|
|
|
|
|
| |
|
September
21, 2019 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Month-to-Date Summary |
|
Observed |
|
2018 |
|
Normal |
Depart |
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Avg Maximum Temperature |
|
74.6 |
|
75.0 |
|
73.1 |
|
+1.5 |
|
81.1 |
|
in |
1983 |
|
68.4 |
|
in |
1913 |
|
|
|
|
|
|
|
|
|
| Avg
Minimum Temperature |
|
56.2 |
|
62.8 |
|
57.9 |
|
-1.7 |
|
63.6 |
|
in |
1915 |
|
53.0 |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
65.4 |
|
68.9 |
|
65.5 |
|
-0.1 |
|
71.7 |
|
in |
1961 |
|
61.5 |
|
in |
1913 |
|
|
|
|
|
|
|
|
|
| Total
Precipitation |
|
.64 |
|
3.54 |
|
2.73 |
|
-2.09 |
|
9.58 |
|
in |
1960 |
|
.10 |
|
in |
1946 |
|
|
|
|
|
|
|
|
|
| Total Snow |
|
0.0 |
|
0.0 |
|
0.0 |
|
+0.0 |
|
0.0 |
|
in |
|
|
0.0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Total
HDD |
|
33 |
|
15 |
|
37 |
|
-4 |
|
96 |
|
in |
1956 |
|
0 |
|
in |
1971 |
|
|
|
|
|
|
|
|
|
| Total CDD |
|
45 |
|
102 |
|
51 |
|
-6 |
|
158 |
|
in |
1961 |
|
7 |
|
in |
1893 |
|
|
|
|
|
|
|
|
|
| Avg Maximum Dew Point |
|
62.6 |
|
61.4 |
|
61.3 |
|
+1.4 |
|
67.8 |
|
in |
2015 |
|
54.9 |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Avg
Minimum Dew Point |
|
52.2 |
|
50.2 |
|
52.2 |
|
+0.0 |
|
59.4 |
|
in |
1971 |
|
44.2 |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
57.4 |
|
56.0 |
|
56.7 |
|
+0.7 |
|
63.5 |
|
in |
1971 |
|
49.5 |
|
in |
1984 |
|
|
|
|
|
|
|
|
|
| |
|
September 21, 2019 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Year-to-Date Summary |
|
Observed |
|
2018 |
|
Normal |
Depart |
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Total Precipitation |
|
38.47 |
|
32.38 |
|
34.22 |
|
+4.25 |
|
46.35 |
|
in |
1998 |
|
17.53 |
|
in |
1957 |
|
|
|
|
|
|
|
|
|
| Total
Snow (since Jul 1 19) |
|
0.0 |
|
0.0 |
|
0.0 |
|
+0.0 |
|
0.0 |
|
in |
|
|
0.0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Total HDD (since Jul 1
19) |
|
36 |
|
15 |
|
46 |
|
-10 |
|
127 |
|
in |
1956 |
|
4 |
|
in |
2015 |
|
|
|
|
|
|
|
|
|
| Total
CDD (since Jan 1) |
|
703 |
|
750 |
|
549 |
|
+154 |
|
788 |
|
in |
2016 |
|
282 |
|
in |
1902 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For September 21, 2019 |
|
|
|
| Climate Weather for September 21 |
|
|
|
| Weather History For September 21 |
|
|
|
| Weather Calendar |
|
|
|
| Back To Weather Stat Page |
|
|
|
| Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|