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History for Washington, DC
Thursday, July 9, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
73 °F
|
79 °F
|
|
| Max Temperature |
82 °F
|
88 °F
|
104 °F
(1936) |
| Min Temperature |
64 °F
|
70 °F
|
55 °F
(1891) |
| 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 |
8 |
15 |
|
| Month to date cooling degree days |
77 |
126 |
|
| Year to date cooling degree days |
479 |
562 |
|
| Since 1 June cooling degree days |
349 |
430 |
|
| Growing Degree Days | 23 (Base 50) |
|
|
| Moisture |
| Dew Point |
56 °F
|
|
|
| Average Humidity |
57 |
|
|
| Maximum Humidity |
78 |
|
|
| Minimum Humidity |
36 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.12 in
|
4.69 in
(1970) |
| Month to date precipitation |
0.12 |
1.03 |
|
| Year to date precipitation |
23.25 |
20.19 |
|
| 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 |
30.14 in
|
|
|
| Wind |
| Wind Speed |
6 mph
(ENE) |
|
|
| Max Wind Speed |
13 mph
|
|
|
| Max Gust Speed |
17 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 |
71.1 °F
|
55.9 °F
|
59% |
30.05 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 1:52 AM |
66.0 °F
|
57.9 °F
|
75% |
30.05 in
|
10.0 miles
|
North |
5.8 mph
|
-
|
N/A |
|
Partly Cloudy |
| 2:52 AM |
66.0 °F
|
57.9 °F
|
75% |
30.05 in
|
10.0 miles
|
NE |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
| 3:52 AM |
66.9 °F
|
55.9 °F
|
68% |
30.06 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 4:52 AM |
64.9 °F
|
57.0 °F
|
75% |
30.07 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 5:52 AM |
66.0 °F
|
57.0 °F
|
73% |
30.09 in
|
10.0 miles
|
NE |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 AM |
66.0 °F
|
55.9 °F
|
70% |
30.10 in
|
10.0 miles
|
NE |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 7:52 AM |
68.0 °F
|
57.0 °F
|
68% |
30.12 in
|
10.0 miles
|
ENE |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 8:52 AM |
71.1 °F
|
57.9 °F
|
63% |
30.13 in
|
10.0 miles
|
NE |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 9:52 AM |
73.9 °F
|
57.0 °F
|
55% |
30.15 in
|
10.0 miles
|
ENE |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 AM |
77.0 °F
|
57.0 °F
|
50% |
30.16 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 11:52 AM |
79.0 °F
|
54.0 °F
|
42% |
30.17 in
|
10.0 miles
|
NE |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 12:52 PM |
79.0 °F
|
54.0 °F
|
42% |
30.16 in
|
10.0 miles
|
ENE |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 PM |
79.0 °F
|
55.0 °F
|
44% |
30.16 in
|
10.0 miles
|
NNE |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 PM |
80.1 °F
|
55.0 °F
|
42% |
30.15 in
|
10.0 miles
|
ENE |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 3:52 PM |
82.0 °F
|
54.0 °F
|
38% |
30.15 in
|
10.0 miles
|
NE |
8.1 mph
|
-
|
N/A |
|
Overcast |
| 4:52 PM |
80.1 °F
|
53.1 °F
|
39% |
30.14 in
|
10.0 miles
|
ESE |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 5:52 PM |
80.1 °F
|
51.1 °F
|
36% |
30.15 in
|
10.0 miles
|
ESE |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 PM |
77.0 °F
|
52.0 °F
|
42% |
30.15 in
|
10.0 miles
|
SE |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 7:52 PM |
75.9 °F
|
54.0 °F
|
46% |
30.17 in
|
10.0 miles
|
SE |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 8:52 PM |
73.9 °F
|
57.0 °F
|
55% |
30.18 in
|
10.0 miles
|
ESE |
9.2 mph
|
-
|
N/A |
|
Scattered Clouds |
| 9:52 PM |
72.0 °F
|
59.0 °F
|
64% |
30.22 in
|
10.0 miles
|
SE |
9.2 mph
|
-
|
N/A |
|
Partly Cloudy |
| 10:52 PM |
70.0 °F
|
60.1 °F
|
71% |
30.24 in
|
10.0 miles
|
SE |
8.1 mph
|
-
|
N/A |
|
Partly Cloudy |
| 11:52 PM |
69.1 °F
|
59.0 °F
|
70% |
30.25 in
|
10.0 miles
|
SE |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
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