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History for Washington, DC
Tuesday, July 7, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
78 °F
|
79 °F
|
|
| Max Temperature |
88 °F
|
88 °F
|
99 °F
(1991) |
| Min Temperature |
67 °F
|
70 °F
|
56 °F
(1906) |
| 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 |
13 |
14 |
|
| Month to date cooling degree days |
60 |
97 |
|
| Year to date cooling degree days |
462 |
533 |
|
| Since 1 June cooling degree days |
332 |
401 |
|
| Growing Degree Days | 28 (Base 50) |
|
|
| Moisture |
| Dew Point |
60 °F
|
|
|
| Average Humidity |
55 |
|
|
| Maximum Humidity |
81 |
|
|
| Minimum Humidity |
29 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.12 in
|
0.93 in
(1958) |
| Month to date precipitation |
0.12 |
0.79 |
|
| Year to date precipitation |
23.25 |
19.95 |
|
| 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 |
29.79 in
|
|
|
| Wind |
| Wind Speed |
8 mph
(WSW) |
|
|
| Max Wind Speed |
20 mph
|
|
|
| Max Gust Speed |
31 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 |
72.0 °F
|
61.0 °F
|
68% |
29.80 in
|
10.0 miles
|
SSW |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 AM |
71.1 °F
|
63.0 °F
|
75% |
29.79 in
|
10.0 miles
|
South |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 AM |
69.1 °F
|
63.0 °F
|
81% |
29.78 in
|
10.0 miles
|
South |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 3:52 AM |
68.0 °F
|
63.0 °F
|
84% |
29.77 in
|
10.0 miles
|
South |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 4:52 AM |
68.0 °F
|
62.1 °F
|
81% |
29.77 in
|
10.0 miles
|
SSW |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 5:52 AM |
68.0 °F
|
62.1 °F
|
81% |
29.77 in
|
10.0 miles
|
SSW |
3.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 6:52 AM |
69.1 °F
|
62.1 °F
|
78% |
29.78 in
|
10.0 miles
|
West |
4.6 mph
|
-
|
N/A |
|
Scattered Clouds |
| 7:52 AM |
72.0 °F
|
60.1 °F
|
66% |
29.80 in
|
10.0 miles
|
West |
5.8 mph
|
-
|
N/A |
|
Scattered Clouds |
| 8:52 AM |
75.0 °F
|
60.1 °F
|
60% |
29.81 in
|
10.0 miles
|
South |
3.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 9:52 AM |
78.1 °F
|
63.0 °F
|
60% |
29.80 in
|
10.0 miles
|
South |
8.1 mph
|
-
|
N/A |
|
Partly Cloudy |
| 10:52 AM |
81.0 °F
|
63.0 °F
|
54% |
29.79 in
|
10.0 miles
|
South |
6.9 mph
|
-
|
N/A |
|
Partly Cloudy |
| 11:52 AM |
82.9 °F
|
63.0 °F
|
51% |
29.78 in
|
10.0 miles
|
South |
11.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 12:52 PM |
84.9 °F
|
55.9 °F
|
37% |
29.76 in
|
10.0 miles
|
West |
9.2 mph
|
17.3 mph
|
N/A |
|
Scattered Clouds |
| 1:52 PM |
87.1 °F
|
53.1 °F
|
31% |
29.75 in
|
10.0 miles
|
NW |
15.0 mph
|
20.7 mph
|
N/A |
|
Scattered Clouds |
| 2:52 PM |
87.1 °F
|
54.0 °F
|
32% |
29.75 in
|
10.0 miles
|
WNW |
10.4 mph
|
17.3 mph
|
N/A |
|
Scattered Clouds |
| 3:52 PM |
87.1 °F
|
52.0 °F
|
30% |
29.74 in
|
10.0 miles
|
West |
11.5 mph
|
18.4 mph
|
N/A |
|
Scattered Clouds |
| 4:52 PM |
88.0 °F
|
53.1 °F
|
30% |
29.74 in
|
10.0 miles
|
West |
13.8 mph
|
19.6 mph
|
N/A |
|
Mostly Cloudy |
| 5:52 PM |
87.1 °F
|
52.0 °F
|
30% |
29.73 in
|
10.0 miles
|
West |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 PM |
84.9 °F
|
52.0 °F
|
32% |
29.73 in
|
10.0 miles
|
WNW |
11.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 7:52 PM |
82.9 °F
|
53.1 °F
|
36% |
29.74 in
|
10.0 miles
|
WNW |
8.1 mph
|
-
|
N/A |
|
Scattered Clouds |
| 8:52 PM |
82.0 °F
|
53.1 °F
|
37% |
29.76 in
|
10.0 miles
|
WNW |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 9:52 PM |
80.1 °F
|
55.0 °F
|
42% |
29.78 in
|
10.0 miles
|
NW |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 PM |
78.1 °F
|
55.9 °F
|
46% |
29.79 in
|
10.0 miles
|
NNW |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 11:52 PM |
77.0 °F
|
55.9 °F
|
48% |
29.80 in
|
10.0 miles
|
NNW |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
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