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History for Washington, DC
Thursday, June 18, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
74 °F
|
75 °F
|
|
| Max Temperature |
80 °F
|
85 °F
|
97 °F
(1944) |
| Min Temperature |
67 °F
|
66 °F
|
51 °F
(1965) |
| Degree Days |
| Heating Degree Days |
0 |
0 |
|
| Month to date heating degree days |
5 |
5 |
|
| Since 1 June heating degree days |
5 |
5 |
|
| Since 1 July heating degree days |
4210 |
4055 |
|
| Cooling Degree Days |
9 |
11 |
|
| Month to date cooling degree days |
129 |
159 |
|
| Year to date cooling degree days |
259 |
291 |
|
| Since 1 June cooling degree days |
129 |
159 |
|
| Growing Degree Days | 22 (Base 50) |
|
|
| Moisture |
| Dew Point |
66 °F
|
|
|
| Average Humidity |
77 |
|
|
| Maximum Humidity |
97 |
|
|
| Minimum Humidity |
56 |
|
|
| Precipitation |
| Precipitation |
1.01 in
|
0.10 in
|
1.87 in
(1878) |
| Month to date precipitation |
5.07 |
1.89 |
|
| Year to date precipitation |
22.34 |
17.92 |
|
| Snow |
| Snow |
0.00 in
|
0.00 in
|
-
() |
| Month to date snowfall |
0.0 |
0.0 |
|
| Since 1 July snowfall |
7.5 |
15.2 |
|
| Snow Depth |
0.00 in
|
|
|
| Sea Level Pressure |
| Sea Level Pressure |
29.87 in
|
|
|
| Wind |
| Wind Speed |
9 mph
(South) |
|
|
| Max Wind Speed |
23 mph
|
|
|
| Max Gust Speed |
26 mph
|
|
|
| Visibility |
8 miles
|
|
|
| Events |
Fog
,
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 |
| 12:12 AM |
66.2 °F
|
62.6 °F
|
88% |
29.99 in
|
10.0 miles
|
SSE |
5.8 mph
|
-
|
0.00 in
|
Rain
|
Light Rain |
| 12:27 AM |
66.2 °F
|
62.6 °F
|
88% |
29.98 in
|
3.0 miles
|
SSE |
8.1 mph
|
-
|
0.00 in
|
Rain
|
Light Rain |
| 12:33 AM |
66.2 °F
|
62.6 °F
|
88% |
29.98 in
|
7.0 miles
|
SSE |
8.1 mph
|
-
|
0.01 in
|
Rain
|
Light Rain |
| 12:52 AM |
66.9 °F
|
63.0 °F
|
87% |
29.97 in
|
10.0 miles
|
SSE |
9.2 mph
|
-
|
0.02 in
|
Rain
|
Light Rain |
| 12:55 AM |
66.2 °F
|
62.6 °F
|
88% |
29.98 in
|
10.0 miles
|
SSE |
10.4 mph
|
-
|
0.00 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 1:11 AM |
66.2 °F
|
64.4 °F
|
94% |
29.96 in
|
10.0 miles
|
South |
10.4 mph
|
-
|
0.00 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 1:24 AM |
66.2 °F
|
64.4 °F
|
94% |
29.96 in
|
10.0 miles
|
South |
10.4 mph
|
-
|
0.01 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 1:45 AM |
66.2 °F
|
64.4 °F
|
94% |
29.95 in
|
5.0 miles
|
South |
11.5 mph
|
-
|
0.01 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 1:52 AM |
66.9 °F
|
64.0 °F
|
90% |
29.94 in
|
4.0 miles
|
SSE |
13.8 mph
|
-
|
0.08 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 2:02 AM |
66.2 °F
|
64.4 °F
|
94% |
29.94 in
|
8.0 miles
|
South |
11.5 mph
|
-
|
0.02 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 2:11 AM |
66.2 °F
|
64.4 °F
|
94% |
29.94 in
|
10.0 miles
|
South |
11.5 mph
|
-
|
0.03 in
|
Rain
|
Light Rain |
| 2:31 AM |
66.2 °F
|
64.4 °F
|
94% |
29.92 in
|
10.0 miles
|
South |
13.8 mph
|
-
|
0.05 in
|
Rain
|
Light Rain |
| 2:43 AM |
68.0 °F
|
64.4 °F
|
88% |
29.92 in
|
10.0 miles
|
South |
13.8 mph
|
-
|
0.05 in
|
Rain
|
Light Rain |
| 2:52 AM |
68.0 °F
|
64.9 °F
|
90% |
29.91 in
|
10.0 miles
|
South |
15.0 mph
|
-
|
0.05 in
|
Rain
|
Light Rain |
| 3:31 AM |
68.0 °F
|
64.4 °F
|
88% |
29.90 in
|
10.0 miles
|
South |
17.3 mph
|
-
|
0.01 in
|
Rain
|
Light Rain |
| 3:52 AM |
68.0 °F
|
64.9 °F
|
90% |
29.89 in
|
10.0 miles
|
South |
17.3 mph
|
-
|
0.01 in
|
Rain
|
Light Rain |
| 4:52 AM |
69.1 °F
|
64.9 °F
|
87% |
29.87 in
|
10.0 miles
|
South |
20.7 mph
|
-
|
0.00 in
|
Rain
|
Light Rain |
| 5:33 AM |
69.8 °F
|
64.4 °F
|
83% |
29.87 in
|
10.0 miles
|
South |
16.1 mph
|
-
|
0.01 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 5:52 AM |
70.0 °F
|
66.0 °F
|
87% |
29.87 in
|
10.0 miles
|
South |
17.3 mph
|
-
|
0.01 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 6:17 AM |
69.8 °F
|
66.2 °F
|
88% |
29.86 in
|
5.0 miles
|
South |
15.0 mph
|
23.0 mph
|
0.00 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 6:24 AM |
69.8 °F
|
66.2 °F
|
88% |
29.86 in
|
6.0 miles
|
South |
18.4 mph
|
25.3 mph
|
0.00 in
|
Rain
|
Light Rain |
| 6:52 AM |
69.1 °F
|
66.0 °F
|
90% |
29.86 in
|
8.0 miles
|
South |
15.0 mph
|
25.3 mph
|
0.01 in
|
|
Overcast |
| 7:03 AM |
69.8 °F
|
66.2 °F
|
88% |
29.87 in
|
7.0 miles
|
SSW |
15.0 mph
|
20.7 mph
|
N/A |
|
Overcast |
| 7:11 AM |
69.8 °F
|
66.2 °F
|
88% |
29.87 in
|
3.0 miles
|
SSW |
13.8 mph
|
-
|
0.00 in
|
|
Light Drizzle |
| 7:23 AM |
68.0 °F
|
66.2 °F
|
94% |
29.88 in
|
2.5 miles
|
SSW |
11.5 mph
|
-
|
0.00 in
|
|
Light Drizzle |
| 7:45 AM |
69.8 °F
|
66.2 °F
|
88% |
29.87 in
|
2.5 miles
|
South |
11.5 mph
|
-
|
0.01 in
|
|
Light Drizzle |
| 7:52 AM |
69.1 °F
|
66.0 °F
|
90% |
29.88 in
|
2.0 miles
|
South |
10.4 mph
|
-
|
0.01 in
|
|
Light Drizzle |
| 8:36 AM |
69.8 °F
|
68.0 °F
|
94% |
29.86 in
|
3.0 miles
|
South |
11.5 mph
|
-
|
0.00 in
|
|
Light Drizzle |
| 8:52 AM |
70.0 °F
|
68.0 °F
|
93% |
29.87 in
|
4.0 miles
|
South |
11.5 mph
|
-
|
0.00 in
|
|
Light Drizzle |
| 9:40 AM |
71.6 °F
|
68.0 °F
|
88% |
29.85 in
|
7.0 miles
|
South |
12.7 mph
|
-
|
0.00 in
|
|
Overcast |
| 9:52 AM |
72.0 °F
|
68.0 °F
|
87% |
29.85 in
|
7.0 miles
|
South |
9.2 mph
|
-
|
0.00 in
|
|
Overcast |
| 10:20 AM |
73.4 °F
|
69.8 °F
|
88% |
29.85 in
|
9.0 miles
|
South |
11.5 mph
|
-
|
N/A |
|
Overcast |
| 10:52 AM |
73.0 °F
|
69.1 °F
|
87% |
29.85 in
|
9.0 miles
|
South |
13.8 mph
|
-
|
N/A |
|
Overcast |
| 11:42 AM |
75.2 °F
|
69.8 °F
|
83% |
29.85 in
|
10.0 miles
|
SSW |
9.2 mph
|
-
|
N/A |
|
Overcast |
| 11:52 AM |
75.0 °F
|
69.1 °F
|
82% |
29.85 in
|
10.0 miles
|
South |
8.1 mph
|
-
|
N/A |
|
Overcast |
| 12:26 PM |
77.0 °F
|
71.6 °F
|
83% |
29.83 in
|
10.0 miles
|
South |
11.5 mph
|
-
|
N/A |
|
Overcast |
| 12:52 PM |
77.0 °F
|
70.0 °F
|
79% |
29.83 in
|
10.0 miles
|
South |
10.4 mph
|
-
|
N/A |
|
Overcast |
| 1:04 PM |
78.8 °F
|
71.6 °F
|
78% |
29.82 in
|
10.0 miles
|
South |
12.7 mph
|
-
|
N/A |
|
Overcast |
| 1:31 PM |
77.0 °F
|
69.8 °F
|
78% |
29.82 in
|
10.0 miles
|
South |
8.1 mph
|
-
|
0.00 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 1:46 PM |
77.0 °F
|
69.8 °F
|
78% |
29.81 in
|
6.0 miles
|
South |
4.6 mph
|
-
|
0.00 in
|
Rain
,
Thunderstorm
|
Light Thunderstorms and Rain |
| 1:52 PM |
77.0 °F
|
70.0 °F
|
79% |
29.82 in
|
2.5 miles
|
WNW |
4.6 mph
|
-
|
0.01 in
|
Rain
,
Thunderstorm
|
Thunderstorms and Rain |
| 1:56 PM |
75.2 °F
|
69.8 °F
|
83% |
29.83 in
|
1.5 miles
|
NNW |
11.5 mph
|
18.4 mph
|
0.01 in
|
Rain
,
Thunderstorm
|
Thunderstorms and Rain |
| 2:00 PM |
73.4 °F
|
69.8 °F
|
88% |
29.83 in
|
0.5 miles
|
NW |
16.1 mph
|
20.7 mph
|
0.04 in
|
Fog
,
Rain
,
Thunderstorm
|
Heavy Thunderstorms and Rain |
| 2:15 PM |
73.4 °F
|
69.8 °F
|
88% |
29.83 in
|
0.5 miles
|
WSW |
17.3 mph
|
-
|
0.46 in
|
Rain
,
Thunderstorm
|
Heavy Thunderstorms and Rain |
| 2:23 PM |
71.6 °F
|
68.0 °F
|
88% |
29.83 in
|
4.0 miles
|
South |
10.4 mph
|
-
|
0.76 in
|
Rain
,
Thunderstorm
|
Thunderstorms and Rain |
| 2:34 PM |
71.6 °F
|
66.2 °F
|
83% |
29.82 in
|
7.0 miles
|
SE |
8.1 mph
|
-
|
0.78 in
|
|
Overcast |
| 2:52 PM |
73.9 °F
|
69.1 °F
|
85% |
29.81 in
|
8.0 miles
|
ESE |
3.5 mph
|
-
|
0.83 in
|
|
Mostly Cloudy |
| 3:18 PM |
75.2 °F
|
69.8 °F
|
83% |
29.80 in
|
10.0 miles
|
SSE |
3.5 mph
|
-
|
0.00 in
|
|
Overcast |
| 3:52 PM |
78.1 °F
|
69.1 °F
|
74% |
29.79 in
|
10.0 miles
|
SSE |
3.5 mph
|
-
|
0.00 in
|
|
Overcast |
| 4:52 PM |
75.9 °F
|
68.0 °F
|
76% |
29.79 in
|
10.0 miles
|
SSW |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 5:52 PM |
77.0 °F
|
70.0 °F
|
79% |
29.78 in
|
10.0 miles
|
SSW |
10.4 mph
|
-
|
N/A |
|
Overcast |
| 6:52 PM |
78.1 °F
|
71.1 °F
|
79% |
29.78 in
|
10.0 miles
|
South |
4.6 mph
|
-
|
N/A |
|
Overcast |
| 7:52 PM |
79.0 °F
|
64.0 °F
|
60% |
29.80 in
|
10.0 miles
|
NW |
8.1 mph
|
-
|
N/A |
|
Overcast |
| 8:52 PM |
77.0 °F
|
60.1 °F
|
56% |
29.81 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 9:52 PM |
75.0 °F
|
60.1 °F
|
60% |
29.82 in
|
10.0 miles
|
North |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 PM |
73.9 °F
|
60.1 °F
|
62% |
29.82 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 11:52 PM |
70.0 °F
|
60.1 °F
|
71% |
29.82 in
|
10.0 miles
|
North |
5.8 mph
|
-
|
N/A |
|
Partly Cloudy |
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