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History for Washington, DC
Friday, August 7, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
75 °F
|
79 °F
|
|
| Max Temperature |
86 °F
|
87 °F
|
104 °F
(1918) |
| Min Temperature |
64 °F
|
71 °F
|
58 °F
(1994) |
| Degree Days |
| Heating Degree Days |
0 |
0 |
|
| Month to date heating degree days |
0 |
0 |
|
| Since 1 June heating degree days |
5 |
6 |
|
| Since 1 July heating degree days |
0 |
0 |
|
| Cooling Degree Days |
10 |
14 |
|
| Month to date cooling degree days |
93 |
98 |
|
| Year to date cooling degree days |
873 |
1003 |
|
| Since 1 June cooling degree days |
743 |
869 |
|
| Growing Degree Days | 25 (Base 50) |
|
|
| Moisture |
| Dew Point |
52 °F
|
|
|
| Average Humidity |
47 |
|
|
| Maximum Humidity |
73 |
|
|
| Minimum Humidity |
21 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.10 in
|
1.85 in
(1885) |
| Month to date precipitation |
0.56 |
0.74 |
|
| Year to date precipitation |
24.76 |
24.21 |
|
| 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 |
30.13 in
|
|
|
| Wind |
| Wind Speed |
7 mph
(NW) |
|
|
| Max Wind Speed |
15 mph
|
|
|
| Max Gust Speed |
22 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 |
69.1 °F
|
57.9 °F
|
68% |
30.04 in
|
10.0 miles
|
NNW |
4.6 mph
|
-
|
N/A |
|
Clear |
| 1:52 AM |
68.0 °F
|
55.9 °F
|
65% |
30.04 in
|
10.0 miles
|
NNW |
6.9 mph
|
-
|
N/A |
|
Clear |
| 2:52 AM |
66.9 °F
|
55.9 °F
|
68% |
30.05 in
|
10.0 miles
|
NW |
6.9 mph
|
-
|
N/A |
|
Partly Cloudy |
| 3:52 AM |
64.9 °F
|
55.9 °F
|
73% |
30.05 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 4:52 AM |
66.0 °F
|
55.9 °F
|
70% |
30.06 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Partly Cloudy |
| 5:52 AM |
64.9 °F
|
55.9 °F
|
73% |
30.08 in
|
10.0 miles
|
NNW |
4.6 mph
|
-
|
N/A |
|
Partly Cloudy |
| 6:52 AM |
64.9 °F
|
55.0 °F
|
70% |
30.11 in
|
10.0 miles
|
NNW |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
| 7:52 AM |
69.1 °F
|
55.9 °F
|
63% |
30.13 in
|
10.0 miles
|
NNW |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 8:52 AM |
71.1 °F
|
55.0 °F
|
57% |
30.16 in
|
10.0 miles
|
NNW |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 9:52 AM |
75.0 °F
|
53.1 °F
|
46% |
30.16 in
|
10.0 miles
|
North |
11.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 AM |
78.1 °F
|
52.0 °F
|
40% |
30.17 in
|
10.0 miles
|
North |
11.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 11:52 AM |
79.0 °F
|
51.1 °F
|
38% |
30.18 in
|
10.0 miles
|
North |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 12:52 PM |
82.0 °F
|
51.1 °F
|
34% |
30.17 in
|
10.0 miles
|
North |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 PM |
82.9 °F
|
48.0 °F
|
29% |
30.15 in
|
10.0 miles
|
North |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 PM |
82.0 °F
|
44.1 °F
|
26% |
30.14 in
|
10.0 miles
|
West |
5.8 mph
|
-
|
N/A |
|
Scattered Clouds |
| 3:52 PM |
86.0 °F
|
43.0 °F
|
22% |
30.13 in
|
10.0 miles
|
West |
11.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 4:52 PM |
84.0 °F
|
48.0 °F
|
28% |
30.12 in
|
10.0 miles
|
WNW |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 5:52 PM |
82.9 °F
|
46.9 °F
|
28% |
30.13 in
|
10.0 miles
|
NW |
10.4 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 PM |
81.0 °F
|
46.0 °F
|
29% |
30.14 in
|
10.0 miles
|
WNW |
6.9 mph
|
-
|
N/A |
|
Overcast |
| 7:52 PM |
78.1 °F
|
48.9 °F
|
36% |
30.15 in
|
10.0 miles
|
North |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 8:52 PM |
78.1 °F
|
48.9 °F
|
36% |
30.16 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 9:52 PM |
75.9 °F
|
48.0 °F
|
37% |
30.17 in
|
10.0 miles
|
WSW |
4.6 mph
|
-
|
N/A |
|
Overcast |
| 10:52 PM |
73.0 °F
|
55.9 °F
|
55% |
30.17 in
|
10.0 miles
|
South |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 11:52 PM |
71.1 °F
|
53.1 °F
|
53% |
30.19 in
|
10.0 miles
|
South |
5.8 mph
|
-
|
N/A |
|
Overcast |
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