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History for Washington, DC
Sunday, July 12, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
81 °F
|
79 °F
|
|
| Max Temperature |
90 °F
|
88 °F
|
99 °F
(1908) |
| Min Temperature |
71 °F
|
70 °F
|
53 °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 |
16 |
15 |
|
| Month to date cooling degree days |
112 |
171 |
|
| Year to date cooling degree days |
514 |
607 |
|
| Since 1 June cooling degree days |
384 |
475 |
|
| Growing Degree Days | 30 (Base 50) |
|
|
| Moisture |
| Dew Point |
61 °F
|
|
|
| Average Humidity |
61 |
|
|
| Maximum Humidity |
90 |
|
|
| Minimum Humidity |
32 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.12 in
|
2.93 in
(1903) |
| Month to date precipitation |
0.13 |
1.39 |
|
| Year to date precipitation |
23.26 |
20.55 |
|
| 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 |
29.95 in
|
|
|
| Wind |
| Wind Speed |
7 mph
(WNW) |
|
|
| Max Wind Speed |
17 mph
|
|
|
| Max Gust Speed |
24 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 |
75.9 °F
|
70.0 °F
|
82% |
29.97 in
|
8.0 miles
|
SSW |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 AM |
75.0 °F
|
69.1 °F
|
82% |
29.97 in
|
7.0 miles
|
SSW |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 AM |
73.9 °F
|
68.0 °F
|
82% |
29.96 in
|
8.0 miles
|
South |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 3:52 AM |
73.9 °F
|
68.0 °F
|
82% |
29.96 in
|
9.0 miles
|
South |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 4:52 AM |
72.0 °F
|
68.0 °F
|
87% |
29.97 in
|
9.0 miles
|
South |
4.6 mph
|
-
|
N/A |
|
Partly Cloudy |
| 5:52 AM |
73.0 °F
|
68.0 °F
|
84% |
29.98 in
|
8.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Partly Cloudy |
| 6:52 AM |
73.0 °F
|
68.0 °F
|
84% |
29.99 in
|
8.0 miles
|
SW |
3.5 mph
|
-
|
N/A |
|
Partly Cloudy |
| 7:52 AM |
78.1 °F
|
66.0 °F
|
66% |
30.00 in
|
10.0 miles
|
WNW |
6.9 mph
|
-
|
N/A |
|
Partly Cloudy |
| 8:52 AM |
81.0 °F
|
64.9 °F
|
58% |
30.00 in
|
10.0 miles
|
NW |
11.5 mph
|
18.4 mph
|
N/A |
|
Scattered Clouds |
| 9:52 AM |
82.9 °F
|
64.0 °F
|
53% |
30.00 in
|
10.0 miles
|
NNW |
12.7 mph
|
-
|
N/A |
|
Scattered Clouds |
| 10:52 AM |
84.9 °F
|
62.1 °F
|
46% |
29.99 in
|
10.0 miles
|
WNW |
12.7 mph
|
20.7 mph
|
N/A |
|
Scattered Clouds |
| 11:52 AM |
87.1 °F
|
60.1 °F
|
40% |
29.99 in
|
10.0 miles
|
NW |
10.4 mph
|
18.4 mph
|
N/A |
|
Scattered Clouds |
| 12:52 PM |
86.0 °F
|
59.0 °F
|
40% |
29.97 in
|
10.0 miles
|
NNW |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 PM |
88.0 °F
|
55.9 °F
|
34% |
29.95 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 2:52 PM |
88.0 °F
|
57.9 °F
|
36% |
29.94 in
|
10.0 miles
|
Variable |
6.9 mph
|
16.1 mph
|
N/A |
|
Mostly Cloudy |
| 3:52 PM |
89.1 °F
|
55.9 °F
|
32% |
29.92 in
|
10.0 miles
|
WNW |
8.1 mph
|
20.7 mph
|
N/A |
|
Scattered Clouds |
| 4:52 PM |
88.0 °F
|
55.9 °F
|
34% |
29.92 in
|
10.0 miles
|
WNW |
9.2 mph
|
19.6 mph
|
N/A |
|
Mostly Cloudy |
| 5:52 PM |
87.1 °F
|
57.0 °F
|
36% |
29.90 in
|
10.0 miles
|
NNW |
11.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 PM |
86.0 °F
|
55.9 °F
|
36% |
29.90 in
|
10.0 miles
|
North |
11.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 7:52 PM |
84.0 °F
|
57.0 °F
|
40% |
29.91 in
|
10.0 miles
|
NW |
10.4 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 8:52 PM |
82.0 °F
|
57.0 °F
|
42% |
29.92 in
|
10.0 miles
|
North |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 9:52 PM |
79.0 °F
|
55.0 °F
|
44% |
29.93 in
|
10.0 miles
|
NNW |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 PM |
77.0 °F
|
55.9 °F
|
48% |
29.93 in
|
10.0 miles
|
North |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 11:52 PM |
75.9 °F
|
57.0 °F
|
52% |
29.94 in
|
10.0 miles
|
NNE |
6.9 mph
|
-
|
N/A |
|
Overcast |
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