| Portsmouth Rhode Island
Weather Almanac |
|
|
|
|
|
|
|
|
| Friday, December 4, 2020 |
|
|
|
|
|
|
|
|
| Mostly Cloudy early, Partly Cloudy Day to Cloudy, Very Light
Rain PM, Very Warm |
|
|
|
|
|
|
|
|
| Climate Normal
Period |
|
Climate Record Period |
|
|
|
|
|
|
|
|
|
| 1981- 2010 |
|
1893 - 2020 |
|
|
|
|
|
|
|
|
|
| |
|
December
4, 2020 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Observed Daily Data |
|
Observed |
|
2019 |
|
Normal |
|
Depart |
|
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Maximum Temperature |
|
56 |
|
39 |
|
46 |
|
+10 |
|
68 |
|
in |
1998 |
|
20 |
|
in |
1906 |
|
|
|
|
|
|
|
|
|
| Minimum
Temperature |
|
47 |
|
28 |
|
32 |
|
+15 |
|
53 |
|
in |
1950 |
|
5 |
|
in |
1940 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
52 |
|
34 |
|
39 |
|
+13 |
|
59 |
|
in |
1998 |
|
13 |
|
in |
1906 |
|
|
|
|
|
|
|
|
|
| Precipitation |
|
.01 |
|
.00 |
|
.15 |
|
-.14 |
|
2.40 |
|
in |
1990 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| One Hour |
|
.01 |
|
.00 |
|
|
|
|
|
.39 |
|
in |
1990 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Snow |
|
0.0 |
|
0.0 |
|
0.2 |
|
-0.2 |
|
3.3 |
|
in |
1901 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Snow
Depth |
|
0 |
|
3 |
|
|
|
|
|
4 |
|
in |
1898 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| HDD |
|
13 |
|
31 |
|
26 |
|
-13 |
|
52 |
|
in |
1906 |
|
6 |
|
in |
1998 |
|
|
|
|
|
|
|
|
|
| CDD |
|
0 |
|
0 |
|
0 |
|
+0 |
|
0 |
|
in |
|
0 |
|
in |
|
|
|
|
|
|
|
|
|
|
| Maximum Dew Point |
|
47 |
|
31 |
|
38 |
|
+10 |
|
58 |
|
in |
1990 |
|
1 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Minimum
Dew Point |
|
32 |
|
20 |
|
23 |
|
+9 |
|
50 |
|
in |
1950 |
|
-11 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
40 |
|
26 |
|
30 |
|
+10 |
|
54 |
|
in |
1950 |
|
-5 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Maximum Humidity |
|
87% |
|
87% |
|
85% |
|
+2% |
|
100% |
|
in |
2001 |
|
42% |
|
in |
1980 |
|
|
|
|
|
|
|
|
|
| Minimum
Humidity |
|
51% |
|
68% |
|
54% |
|
-3% |
|
91% |
|
in |
1955 |
|
24% |
|
in |
2000 |
|
|
|
|
|
|
|
|
|
| Average Humidity |
|
69% |
|
78% |
|
69% |
|
-0% |
|
93% |
|
in |
1964 |
|
33% |
|
in |
1980 |
|
|
|
|
|
|
|
|
|
| Maximum Barometer |
|
30.14 |
|
29.56 |
|
30.14 |
|
-00.00 |
|
30.72 |
|
in |
1966 |
|
29.56 |
|
in |
2019 |
|
|
|
|
|
|
|
|
|
| Minimum
Barometer |
|
29.93 |
|
29.47 |
|
29.81 |
|
+00.12 |
|
30.55 |
|
in |
1966 |
|
29.01 |
|
in |
1978 |
|
|
|
|
|
|
|
|
|
| Average Barometer |
|
30.04 |
|
29.52 |
|
29.98 |
|
+00.06 |
|
30.64 |
|
in |
1966 |
|
29.47 |
|
in |
1970 |
|
|
|
|
|
|
|
|
|
| Average Wind |
|
9.0 |
|
5.1 |
|
8.0 |
|
+1.0 |
|
19.4 |
|
in |
1980 |
|
1.8 |
|
in |
1994 |
|
|
|
|
|
|
|
|
|
| Direction |
|
SW |
|
W |
|
WNW |
|
|
|
NW |
|
|
|
|
SSW |
|
|
|
|
|
|
|
|
|
|
|
|
| High Wind Gust |
|
28 |
|
18 |
|
25 |
|
+3 |
|
58 |
|
in |
1900 |
|
11 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
| Direction |
|
S |
|
WNW |
|
WNW |
|
|
|
E |
|
|
|
|
NE |
|
|
|
|
|
|
|
|
|
|
|
|
| High Heat Index |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Wind Chill |
|
44 |
|
20 |
|
23 |
|
+21 |
|
|
|
|
|
|
-11 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Maximum Water Temp |
|
51.1 |
|
44.0 |
|
48.2 |
|
+2.9 |
|
52.6 |
|
in |
2009 |
|
43.5 |
|
in |
2000 |
|
|
|
|
|
|
|
|
|
| Minimum
Water Temp |
|
48.7 |
|
40.9 |
|
45.8 |
|
+2.9 |
|
51.0 |
|
in |
2009 |
|
39.4 |
|
in |
2002 |
|
|
|
|
|
|
|
|
|
| Average Water Temp |
|
49.9 |
|
42.5 |
|
47.0 |
|
+2.9 |
|
51.8 |
|
in |
2009 |
|
41.9 |
|
in |
2002 |
|
|
|
|
|
|
|
|
|
| Sunrise/ AM Twilight |
|
6:56:27 AM |
|
6:25:31 AM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Sunset /
PM Twilight |
|
4:15:34 PM |
|
4:46:29 PM |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Length Of Day |
|
9:19:07 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Special Conditions |
|
None |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Comments |
|
|
|
|
|
|
|
|
|
|
|
| |
|
December
4, 2020 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Month-to-Date Summary |
|
Observed |
|
2019 |
|
Normal |
Depart |
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Avg Maximum Temperature |
|
53.3 |
|
38.3 |
|
46.5 |
|
+6.8 |
|
59.5 |
|
in |
1998 |
|
29.3 |
|
in |
1896 |
|
|
|
|
|
|
|
|
|
| Avg
Minimum Temperature |
|
40.0 |
|
26.8 |
|
32.8 |
|
+7.3 |
|
44.8 |
|
in |
1998 |
|
13.3 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Average Temperature |
|
47.0 |
|
33.0 |
|
39.5 |
|
+7.5 |
|
52.5 |
|
in |
1998 |
|
23.3 |
|
in |
1976 |
|
|
|
|
|
|
|
|
|
| Total
Precipitation |
|
.05 |
|
.79 |
|
.60 |
|
-.55 |
|
3.13 |
|
in |
1893 |
|
.00 |
|
in |
2011 |
|
|
|
|
|
|
|
|
|
| Total Snow |
|
0.0 |
|
4.2 |
|
0.7 |
|
-0.7 |
|
4.2 |
|
in |
2019 |
|
0.0 |
|
in |
2020 |
|
|
|
|
|
|
|
|
|
| Total
HDD |
|
72 |
|
128 |
|
101 |
|
-29 |
|
167 |
|
in |
1976 |
|
50 |
|
in |
1998 |
|
|
|
|
|
|
|
|
|
| Total CDD |
|
0 |
|
0 |
|
0 |
|
+0 |
|
0 |
|
in |
|
|
|
|
in |
|
|
|
|
|
|
|
|
|
|
| Avg Maximum Dew Point |
|
45.0 |
|
33.5 |
|
38.5 |
|
+6.5 |
|
51.0 |
|
in |
1982 |
|
13.8 |
|
in |
1976 |
|
|
|
|
|
|
|
|
|
| Avg
Minimum Dew Point |
|
29.3 |
|
19.5 |
|
23.8 |
|
+5.5 |
|
39.0 |
|
in |
1982 |
|
-3.8 |
|
in |
1989 |
|
|
|
|
|
|
|
|
|
| Average Dew Point |
|
37.5 |
|
26.8 |
|
31.1 |
|
+6.4 |
|
45.0 |
|
in |
1982 |
|
6.0 |
|
in |
1976 |
|
|
|
|
|
|
|
|
|
| |
|
December 4, 2020 |
|
|
Record |
Record |
|
|
|
|
|
|
|
|
| Year-to-Date Summary |
|
Observed |
|
2019 |
|
Normal |
Depart |
Highest |
Lowest |
|
|
|
|
|
|
|
|
| Total Precipitation |
|
36.93 |
|
50.29 |
|
44.58 |
|
-7.65 |
|
61.39 |
|
in |
1983 |
|
24.18 |
|
in |
1957 |
|
|
|
|
|
|
|
|
|
| Total
Snow (since Jul 1 20) |
|
0.6 |
|
4.2 |
|
1.8 |
|
-1.2 |
|
19.5 |
|
in |
1898 |
|
0.0 |
|
in |
2017 |
|
|
|
|
|
|
|
|
|
| Total HDD (since Jul 1
20) |
|
865 |
|
1118 |
|
1133 |
|
-268 |
|
1459 |
|
in |
1904 |
|
862 |
|
in |
2011 |
|
|
|
|
|
|
|
|
|
| Total
CDD (since Jan 1) |
|
871 |
|
731 |
|
563 |
|
+308 |
|
871 |
|
in |
2020 |
|
290 |
|
in |
1902 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Hour-by-Hour Weather For December 4, 2020 |
|
|
|
|
| Climate Weather for December 4 |
|
|
|
|
| Weather History For December 4 |
|
|
|
|
| Weather Calendar |
|
|
|
| Back To Weather Stat Page |
|
|
|
| Home |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0120 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0220 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0320 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0420 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0520 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0620 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0720 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0820 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec0920 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1020 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1120 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1220 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1320 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1420 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1520 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1620 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1720 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1820 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec1920 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2020 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2120 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2220 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2320 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2420 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2520 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2620 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2720 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2820 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec2920 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec3020 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Dec3120 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|