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History for Washington, DC
Saturday, July 25, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
81 °F
|
80 °F
|
|
| Max Temperature |
91 °F
|
89 °F
|
100 °F
(1930) |
| Min Temperature |
70 °F
|
71 °F
|
58 °F
(1915) |
| 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 |
282 |
366 |
|
| Year to date cooling degree days |
684 |
802 |
|
| Since 1 June cooling degree days |
554 |
670 |
|
| Growing Degree Days | 30 (Base 50) |
|
|
| Moisture |
| Dew Point |
65 °F
|
|
|
| Average Humidity |
61 |
|
|
| Maximum Humidity |
84 |
|
|
| Minimum Humidity |
38 |
|
|
| Precipitation |
| Precipitation |
0.07 in
|
0.12 in
|
3.27 in
(1917) |
| Month to date precipitation |
0.89 |
2.95 |
|
| Year to date precipitation |
24.02 |
22.11 |
|
| 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 |
29.91 in
|
|
|
| Wind |
| Wind Speed |
8 mph
(SSW) |
|
|
| Max Wind Speed |
24 mph
|
|
|
| Max Gust Speed |
36 mph
|
|
|
| Visibility |
9 miles
|
|
|
| Events |
Rain
,
Thunderstorm
|
|
|
|
| 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 |
73.9 °F
|
61.0 °F
|
64% |
29.95 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Partly Cloudy |
| 1:52 AM |
73.0 °F
|
63.0 °F
|
71% |
29.95 in
|
10.0 miles
|
NNE |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 2:52 AM |
73.0 °F
|
64.0 °F
|
73% |
29.94 in
|
10.0 miles
|
North |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 3:52 AM |
73.0 °F
|
64.0 °F
|
73% |
29.93 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 4:52 AM |
71.1 °F
|
63.0 °F
|
75% |
29.93 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 5:52 AM |
70.0 °F
|
63.0 °F
|
78% |
29.95 in
|
10.0 miles
|
WSW |
3.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 6:52 AM |
71.1 °F
|
66.9 °F
|
87% |
29.96 in
|
9.0 miles
|
SSW |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 7:52 AM |
73.0 °F
|
66.9 °F
|
81% |
29.96 in
|
7.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 8:52 AM |
75.9 °F
|
68.0 °F
|
76% |
29.97 in
|
8.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 9:52 AM |
79.0 °F
|
68.0 °F
|
69% |
29.96 in
|
8.0 miles
|
SSE |
4.6 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 AM |
82.0 °F
|
66.0 °F
|
58% |
29.96 in
|
10.0 miles
|
SSE |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 11:52 AM |
84.9 °F
|
66.0 °F
|
53% |
29.94 in
|
9.0 miles
|
South |
11.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 12:52 PM |
86.0 °F
|
64.9 °F
|
49% |
29.91 in
|
10.0 miles
|
South |
13.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 PM |
88.0 °F
|
64.0 °F
|
45% |
29.90 in
|
10.0 miles
|
South |
13.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 PM |
90.0 °F
|
64.0 °F
|
42% |
29.88 in
|
10.0 miles
|
South |
13.8 mph
|
24.2 mph
|
N/A |
|
Mostly Cloudy |
| 3:52 PM |
90.0 °F
|
61.0 °F
|
38% |
29.86 in
|
10.0 miles
|
SSW |
17.3 mph
|
-
|
N/A |
|
Scattered Clouds |
| 4:52 PM |
90.0 °F
|
62.1 °F
|
39% |
29.86 in
|
10.0 miles
|
SSW |
19.6 mph
|
26.5 mph
|
N/A |
|
Mostly Cloudy |
| 5:52 PM |
88.0 °F
|
62.1 °F
|
42% |
29.85 in
|
10.0 miles
|
SSW |
18.4 mph
|
24.2 mph
|
N/A |
|
Mostly Cloudy |
| 6:52 PM |
87.1 °F
|
62.1 °F
|
43% |
29.86 in
|
10.0 miles
|
SSW |
13.8 mph
|
23.0 mph
|
N/A |
|
Mostly Cloudy |
| 7:44 PM |
78.8 °F
|
62.6 °F
|
57% |
29.87 in
|
10.0 miles
|
WNW |
13.8 mph
|
-
|
N/A |
|
Overcast |
| 7:52 PM |
75.0 °F
|
66.0 °F
|
73% |
29.87 in
|
7.0 miles
|
Variable |
4.6 mph
|
20.7 mph
|
0.01 in
|
Rain
|
Light Rain |
| 8:05 PM |
75.2 °F
|
66.2 °F
|
73% |
29.87 in
|
10.0 miles
|
Calm |
Calm |
-
|
0.00 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 8:52 PM |
73.0 °F
|
68.0 °F
|
84% |
29.91 in
|
7.0 miles
|
SSW |
16.1 mph
|
-
|
0.01 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 9:52 PM |
71.1 °F
|
66.9 °F
|
87% |
29.92 in
|
10.0 miles
|
South |
10.4 mph
|
-
|
0.04 in
|
Rain
|
Light Rain |
| 10:52 PM |
72.0 °F
|
68.0 °F
|
87% |
29.90 in
|
10.0 miles
|
SSW |
5.8 mph
|
-
|
0.01 in
|
|
Mostly Cloudy |
| 11:52 PM |
71.1 °F
|
66.9 °F
|
87% |
29.89 in
|
10.0 miles
|
South |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
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