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History for Washington, DC
Saturday, July 31, 2010
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
79 °F
|
79 °F
|
|
| Max Temperature |
86 °F
|
88 °F
|
103 °F
(1954) |
| Min Temperature |
71 °F
|
70 °F
|
52 °F
(1895) |
| Degree Days |
| Heating Degree Days |
0 |
0 |
|
| Month to date heating degree days |
0 |
0 |
|
| Since 1 June heating degree days |
0 |
5 |
|
| Since 1 July heating degree days |
0 |
0 |
|
| Cooling Degree Days |
14 |
15 |
|
| Month to date cooling degree days |
566 |
456 |
|
| Year to date cooling degree days |
1280 |
892 |
|
| Since 1 June cooling degree days |
1039 |
760 |
|
| Growing Degree Days | 28 (Base 50) |
|
|
| Moisture |
| Dew Point |
59 °F
|
|
|
| Average Humidity |
53 |
|
|
| Maximum Humidity |
68 |
|
|
| Minimum Humidity |
37 |
|
|
| Precipitation |
| Precipitation |
T in
|
0.11 in
|
3.18 in
(1899) |
| Month to date precipitation |
5.17 |
3.66 |
|
| Year to date precipitation |
18.77 |
22.82 |
|
| Snow |
| Snow |
0.00 in
|
0.00 in
|
-
() |
| Month to date snowfall |
0.0 |
0.0 |
|
| Since 1 July snowfall |
0.0 |
0.0 |
|
| Snow Depth |
0.00 in
|
|
|
| Sea Level Pressure |
| Sea Level Pressure |
29.93 in
|
|
|
| Wind |
| Wind Speed |
8 mph
(South) |
|
|
| Max Wind Speed |
15 mph
|
|
|
| Max Gust Speed |
-
|
|
|
| Visibility |
10 miles
|
|
|
| Events |
|
|
|
|
| Key: T is trace of precipitation, MM is missing value |
|
Source: NWS Daily Summary |
| Time(EDT) | Temperature | Dew Point | Humidity | Sea Level Pressure | Visibility | Wind Direction | Wind Speed | Gust Speed | Precipitation | Events | Conditions |
|---|
| 12:52 AM |
73.0 °F
|
57.0 °F
|
57% |
29.96 in
|
10.0 miles
|
SW |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 AM |
73.0 °F
|
57.9 °F
|
59% |
29.96 in
|
10.0 miles
|
SW |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 AM |
73.0 °F
|
59.0 °F
|
61% |
29.96 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 3:52 AM |
72.0 °F
|
60.1 °F
|
66% |
29.95 in
|
10.0 miles
|
SW |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 4:52 AM |
73.0 °F
|
59.0 °F
|
61% |
29.95 in
|
10.0 miles
|
WSW |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 5:52 AM |
71.1 °F
|
60.1 °F
|
68% |
29.96 in
|
10.0 miles
|
SSW |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 AM |
72.0 °F
|
57.9 °F
|
61% |
29.96 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 7:52 AM |
73.0 °F
|
59.0 °F
|
61% |
29.97 in
|
10.0 miles
|
South |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 8:52 AM |
75.0 °F
|
57.9 °F
|
55% |
29.97 in
|
10.0 miles
|
SW |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 9:52 AM |
79.0 °F
|
59.0 °F
|
50% |
29.96 in
|
10.0 miles
|
South |
5.8 mph
|
-
|
N/A |
|
Scattered Clouds |
| 10:52 AM |
82.0 °F
|
60.1 °F
|
47% |
29.95 in
|
10.0 miles
|
South |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
| 11:52 AM |
82.9 °F
|
60.1 °F
|
46% |
29.94 in
|
10.0 miles
|
South |
9.2 mph
|
-
|
N/A |
|
Scattered Clouds |
| 12:52 PM |
84.0 °F
|
57.9 °F
|
41% |
29.94 in
|
10.0 miles
|
South |
13.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 PM |
84.0 °F
|
55.9 °F
|
38% |
29.92 in
|
10.0 miles
|
SSE |
11.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 PM |
84.0 °F
|
55.0 °F
|
37% |
29.92 in
|
10.0 miles
|
South |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 3:52 PM |
84.0 °F
|
55.9 °F
|
38% |
29.91 in
|
10.0 miles
|
South |
8.1 mph
|
-
|
N/A |
|
Overcast |
| 4:52 PM |
84.9 °F
|
57.9 °F
|
40% |
29.90 in
|
10.0 miles
|
SSE |
10.4 mph
|
-
|
N/A |
|
Overcast |
| 5:52 PM |
82.9 °F
|
59.0 °F
|
44% |
29.89 in
|
10.0 miles
|
South |
11.5 mph
|
-
|
N/A |
|
Overcast |
| 6:52 PM |
82.0 °F
|
59.0 °F
|
45% |
29.88 in
|
10.0 miles
|
South |
11.5 mph
|
-
|
N/A |
|
Overcast |
| 7:52 PM |
81.0 °F
|
60.1 °F
|
49% |
29.88 in
|
10.0 miles
|
South |
8.1 mph
|
-
|
N/A |
|
Overcast |
| 8:35 PM |
80.6 °F
|
59.0 °F
|
48% |
29.88 in
|
10.0 miles
|
SSE |
9.2 mph
|
-
|
N/A |
|
Overcast |
| 8:52 PM |
81.0 °F
|
59.0 °F
|
47% |
29.89 in
|
10.0 miles
|
SSE |
6.9 mph
|
-
|
N/A |
|
Overcast |
| 9:52 PM |
80.1 °F
|
60.1 °F
|
50% |
29.91 in
|
10.0 miles
|
South |
11.5 mph
|
-
|
N/A |
|
Overcast |
| 10:52 PM |
79.0 °F
|
61.0 °F
|
54% |
29.93 in
|
10.0 miles
|
South |
15.0 mph
|
-
|
N/A |
|
Overcast |
| 11:52 PM |
78.1 °F
|
60.1 °F
|
54% |
29.93 in
|
10.0 miles
|
South |
15.0 mph
|
-
|
N/A |
|
Overcast |
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