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History for Washington, DC
Wednesday, July 15, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
77 °F
|
79 °F
|
|
| Max Temperature |
88 °F
|
88 °F
|
100 °F
(1988) |
| Min Temperature |
65 °F
|
70 °F
|
56 °F
(1895) |
| Degree Days |
| Heating Degree Days |
0 |
0 |
|
| Month to date heating degree days |
0 |
0 |
|
| Since 1 June heating degree days |
5 |
5 |
|
| Since 1 July heating degree days |
0 |
0 |
|
| Cooling Degree Days |
12 |
15 |
|
| Month to date cooling degree days |
148 |
216 |
|
| Year to date cooling degree days |
550 |
652 |
|
| Since 1 June cooling degree days |
420 |
520 |
|
| Growing Degree Days | 26 (Base 50) |
|
|
| Moisture |
| Dew Point |
57 °F
|
|
|
| Average Humidity |
50 |
|
|
| Maximum Humidity |
68 |
|
|
| Minimum Humidity |
32 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.12 in
|
1.86 in
(1945) |
| Month to date precipitation |
0.13 |
1.75 |
|
| Year to date precipitation |
23.26 |
20.91 |
|
| 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 |
30.09 in
|
|
|
| Wind |
| Wind Speed |
10 mph
(South) |
|
|
| Max Wind Speed |
20 mph
|
|
|
| Max Gust Speed |
26 mph
|
|
|
| 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 |
70.0 °F
|
51.1 °F
|
51% |
30.14 in
|
10.0 miles
|
South |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 AM |
71.1 °F
|
51.1 °F
|
49% |
30.14 in
|
10.0 miles
|
South |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 AM |
68.0 °F
|
53.1 °F
|
59% |
30.14 in
|
10.0 miles
|
SSW |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 3:52 AM |
66.9 °F
|
51.1 °F
|
57% |
30.14 in
|
10.0 miles
|
SW |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 4:52 AM |
69.1 °F
|
51.1 °F
|
53% |
30.15 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 5:52 AM |
64.9 °F
|
54.0 °F
|
68% |
30.15 in
|
10.0 miles
|
SSW |
5.8 mph
|
-
|
N/A |
|
Scattered Clouds |
| 6:52 AM |
66.9 °F
|
55.0 °F
|
66% |
30.16 in
|
10.0 miles
|
SW |
4.6 mph
|
-
|
N/A |
|
Scattered Clouds |
| 7:52 AM |
72.0 °F
|
61.0 °F
|
68% |
30.16 in
|
10.0 miles
|
South |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
| 8:52 AM |
73.9 °F
|
55.9 °F
|
53% |
30.17 in
|
10.0 miles
|
South |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
| 9:52 AM |
78.1 °F
|
59.0 °F
|
52% |
30.17 in
|
10.0 miles
|
South |
8.1 mph
|
-
|
N/A |
|
Scattered Clouds |
| 10:52 AM |
82.0 °F
|
57.9 °F
|
44% |
30.16 in
|
10.0 miles
|
South |
15.0 mph
|
-
|
N/A |
|
Partly Cloudy |
| 11:52 AM |
82.9 °F
|
59.0 °F
|
44% |
30.15 in
|
10.0 miles
|
South |
12.7 mph
|
20.7 mph
|
N/A |
|
Scattered Clouds |
| 12:52 PM |
86.0 °F
|
54.0 °F
|
33% |
30.13 in
|
10.0 miles
|
South |
12.7 mph
|
21.9 mph
|
N/A |
|
Mostly Cloudy |
| 1:52 PM |
86.0 °F
|
55.0 °F
|
35% |
30.10 in
|
10.0 miles
|
SSW |
12.7 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 PM |
87.1 °F
|
59.0 °F
|
39% |
30.08 in
|
10.0 miles
|
South |
17.3 mph
|
-
|
N/A |
|
Overcast |
| 3:52 PM |
87.1 °F
|
59.0 °F
|
39% |
30.06 in
|
10.0 miles
|
South |
15.0 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 4:52 PM |
86.0 °F
|
59.0 °F
|
40% |
30.04 in
|
10.0 miles
|
South |
17.3 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 5:52 PM |
86.0 °F
|
62.1 °F
|
44% |
30.02 in
|
10.0 miles
|
South |
13.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 PM |
84.0 °F
|
62.1 °F
|
47% |
30.01 in
|
10.0 miles
|
South |
12.7 mph
|
-
|
N/A |
|
Overcast |
| 7:52 PM |
82.0 °F
|
61.0 °F
|
49% |
30.01 in
|
10.0 miles
|
SSW |
9.2 mph
|
-
|
N/A |
|
Overcast |
| 8:52 PM |
80.1 °F
|
64.9 °F
|
60% |
29.99 in
|
10.0 miles
|
South |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 9:52 PM |
79.0 °F
|
62.1 °F
|
56% |
29.99 in
|
10.0 miles
|
SSE |
11.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 PM |
77.0 °F
|
61.0 °F
|
58% |
29.99 in
|
10.0 miles
|
South |
13.8 mph
|
-
|
N/A |
|
Scattered Clouds |
| 11:52 PM |
77.0 °F
|
60.1 °F
|
56% |
29.97 in
|
10.0 miles
|
South |
12.7 mph
|
-
|
N/A |
|
Mostly Cloudy |
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