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History for Washington, DC
Wednesday, July 8, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
74 °F
|
79 °F
|
|
| Max Temperature |
81 °F
|
88 °F
|
100 °F
(1993) |
| Min Temperature |
66 °F
|
70 °F
|
54 °F
(1892) |
| 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 |
9 |
14 |
|
| Month to date cooling degree days |
69 |
111 |
|
| Year to date cooling degree days |
471 |
547 |
|
| Since 1 June cooling degree days |
341 |
415 |
|
| Growing Degree Days | 23 (Base 50) |
|
|
| Moisture |
| Dew Point |
51 °F
|
|
|
| Average Humidity |
44 |
|
|
| Maximum Humidity |
58 |
|
|
| Minimum Humidity |
30 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.12 in
|
2.16 in
(1958) |
| Month to date precipitation |
0.12 |
0.91 |
|
| Year to date precipitation |
23.25 |
20.07 |
|
| 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 |
29.92 in
|
|
|
| Wind |
| Wind Speed |
6 mph
(NNW) |
|
|
| Max Wind Speed |
16 mph
|
|
|
| Max Gust Speed |
20 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 |
77.0 °F
|
55.0 °F
|
47% |
29.81 in
|
10.0 miles
|
NW |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 AM |
73.9 °F
|
55.0 °F
|
52% |
29.82 in
|
10.0 miles
|
NNW |
10.4 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 2:52 AM |
71.1 °F
|
55.0 °F
|
57% |
29.84 in
|
10.0 miles
|
NNW |
9.2 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 3:52 AM |
70.0 °F
|
52.0 °F
|
53% |
29.85 in
|
10.0 miles
|
NNW |
8.1 mph
|
-
|
N/A |
|
Scattered Clouds |
| 4:52 AM |
68.0 °F
|
52.0 °F
|
56% |
29.86 in
|
10.0 miles
|
NNW |
4.6 mph
|
-
|
N/A |
|
Scattered Clouds |
| 5:52 AM |
66.0 °F
|
52.0 °F
|
60% |
29.87 in
|
10.0 miles
|
NNW |
5.8 mph
|
-
|
N/A |
|
Scattered Clouds |
| 6:52 AM |
68.0 °F
|
50.0 °F
|
52% |
29.89 in
|
10.0 miles
|
NW |
9.2 mph
|
-
|
N/A |
|
Scattered Clouds |
| 7:52 AM |
69.1 °F
|
51.1 °F
|
53% |
29.91 in
|
10.0 miles
|
NNW |
8.1 mph
|
-
|
N/A |
|
Scattered Clouds |
| 8:52 AM |
71.1 °F
|
50.0 °F
|
47% |
29.92 in
|
10.0 miles
|
North |
12.7 mph
|
-
|
N/A |
|
Scattered Clouds |
| 9:52 AM |
73.0 °F
|
50.0 °F
|
44% |
29.94 in
|
10.0 miles
|
North |
9.2 mph
|
18.4 mph
|
N/A |
|
Scattered Clouds |
| 10:52 AM |
75.0 °F
|
48.0 °F
|
38% |
29.93 in
|
10.0 miles
|
NNW |
8.1 mph
|
-
|
N/A |
|
Scattered Clouds |
| 11:52 AM |
78.1 °F
|
48.0 °F
|
35% |
29.95 in
|
10.0 miles
|
NNW |
8.1 mph
|
-
|
N/A |
|
Scattered Clouds |
| 12:52 PM |
78.1 °F
|
48.0 °F
|
35% |
29.94 in
|
10.0 miles
|
Variable |
4.6 mph
|
-
|
N/A |
|
Scattered Clouds |
| 1:52 PM |
79.0 °F
|
46.9 °F
|
32% |
29.94 in
|
10.0 miles
|
NNW |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
| 2:52 PM |
80.1 °F
|
46.9 °F
|
31% |
29.94 in
|
10.0 miles
|
West |
9.2 mph
|
-
|
N/A |
|
Scattered Clouds |
| 3:52 PM |
80.1 °F
|
48.9 °F
|
34% |
29.94 in
|
10.0 miles
|
West |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 4:52 PM |
80.1 °F
|
50.0 °F
|
35% |
29.94 in
|
10.0 miles
|
West |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 5:52 PM |
79.0 °F
|
50.0 °F
|
36% |
29.94 in
|
10.0 miles
|
NW |
5.8 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 6:52 PM |
79.0 °F
|
51.1 °F
|
38% |
29.95 in
|
10.0 miles
|
North |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 7:52 PM |
77.0 °F
|
48.9 °F
|
37% |
29.96 in
|
10.0 miles
|
North |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 8:52 PM |
73.9 °F
|
51.1 °F
|
45% |
29.98 in
|
10.0 miles
|
NNE |
8.1 mph
|
-
|
N/A |
|
Scattered Clouds |
| 9:52 PM |
71.6 °F
|
55.4 °F
|
57% |
30.01 in
|
10.0 miles
|
SSE |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 PM |
72.0 °F
|
54.0 °F
|
53% |
30.02 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 11:52 PM |
71.1 °F
|
55.9 °F
|
59% |
30.04 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
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