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History for Washington, DC
Monday, July 13, 2009
Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
79 °F
|
79 °F
|
|
| Max Temperature |
88 °F
|
88 °F
|
100 °F
(1954) |
| Min Temperature |
70 °F
|
70 °F
|
56 °F
(1888) |
| 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 |
14 |
15 |
|
| Month to date cooling degree days |
126 |
186 |
|
| Year to date cooling degree days |
528 |
622 |
|
| Since 1 June cooling degree days |
398 |
490 |
|
| Growing Degree Days | 30 (Base 50) |
|
|
| Moisture |
| Dew Point |
54 °F
|
|
|
| Average Humidity |
43 |
|
|
| Maximum Humidity |
57 |
|
|
| Minimum Humidity |
29 |
|
|
| Precipitation |
| Precipitation |
0.00 in
|
0.12 in
|
3.37 in
(1922) |
| Month to date precipitation |
0.13 |
1.51 |
|
| Year to date precipitation |
23.26 |
20.67 |
|
| 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 |
7 mph
(North) |
|
|
| Max Wind Speed |
16 mph
|
|
|
| Max Gust Speed |
21 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 |
75.0 °F
|
55.9 °F
|
51% |
29.96 in
|
10.0 miles
|
NE |
8.1 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 AM |
75.2 °F
|
57.2 °F
|
53% |
29.94 in
|
10.0 miles
|
NE |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 2:52 AM |
73.0 °F
|
57.0 °F
|
57% |
29.94 in
|
10.0 miles
|
ENE |
5.8 mph
|
-
|
N/A |
|
Overcast |
| 3:52 AM |
72.0 °F
|
55.0 °F
|
55% |
29.93 in
|
10.0 miles
|
NE |
3.5 mph
|
-
|
N/A |
|
Overcast |
| 4:52 AM |
72.0 °F
|
55.9 °F
|
57% |
29.92 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 5:52 AM |
72.0 °F
|
55.0 °F
|
55% |
29.93 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 6:52 AM |
73.0 °F
|
55.9 °F
|
55% |
29.94 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 7:52 AM |
73.9 °F
|
55.9 °F
|
53% |
29.94 in
|
10.0 miles
|
NE |
5.8 mph
|
-
|
N/A |
|
Scattered Clouds |
| 8:52 AM |
75.9 °F
|
53.1 °F
|
45% |
29.94 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 9:52 AM |
78.1 °F
|
54.0 °F
|
43% |
29.93 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Scattered Clouds |
| 10:52 AM |
80.1 °F
|
57.0 °F
|
45% |
29.94 in
|
10.0 miles
|
South |
8.1 mph
|
-
|
N/A |
|
Scattered Clouds |
| 11:52 AM |
82.9 °F
|
57.9 °F
|
42% |
29.93 in
|
10.0 miles
|
SSE |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
| 12:52 PM |
84.0 °F
|
55.9 °F
|
38% |
29.91 in
|
10.0 miles
|
Variable |
3.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 1:52 PM |
84.9 °F
|
55.9 °F
|
37% |
29.90 in
|
10.0 miles
|
Variable |
6.9 mph
|
-
|
N/A |
|
Scattered Clouds |
| 2:52 PM |
88.0 °F
|
55.0 °F
|
32% |
29.89 in
|
10.0 miles
|
NW |
12.7 mph
|
17.3 mph
|
N/A |
|
Scattered Clouds |
| 3:52 PM |
84.9 °F
|
53.1 °F
|
33% |
29.88 in
|
10.0 miles
|
North |
11.5 mph
|
-
|
N/A |
|
Scattered Clouds |
| 4:52 PM |
86.0 °F
|
51.1 °F
|
30% |
29.88 in
|
10.0 miles
|
NNW |
12.7 mph
|
16.1 mph
|
N/A |
|
Partly Cloudy |
| 5:52 PM |
86.0 °F
|
50.0 °F
|
29% |
29.88 in
|
10.0 miles
|
NW |
9.2 mph
|
-
|
N/A |
|
Scattered Clouds |
| 6:52 PM |
84.0 °F
|
48.0 °F
|
28% |
29.88 in
|
10.0 miles
|
North |
6.9 mph
|
-
|
N/A |
|
Partly Cloudy |
| 7:52 PM |
81.0 °F
|
48.0 °F
|
31% |
29.89 in
|
10.0 miles
|
North |
9.2 mph
|
-
|
N/A |
|
Partly Cloudy |
| 8:52 PM |
78.1 °F
|
50.0 °F
|
37% |
29.90 in
|
10.0 miles
|
North |
10.4 mph
|
-
|
N/A |
|
Scattered Clouds |
| 9:52 PM |
78.1 °F
|
51.1 °F
|
39% |
29.94 in
|
10.0 miles
|
NNW |
6.9 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 10:52 PM |
75.0 °F
|
52.0 °F
|
44% |
29.96 in
|
10.0 miles
|
North |
9.2 mph
|
-
|
N/A |
|
Partly Cloudy |
| 11:52 PM |
73.9 °F
|
50.0 °F
|
43% |
29.98 in
|
10.0 miles
|
North |
11.5 mph
|
-
|
N/A |
|
Partly Cloudy |
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