|
|
|
Dulles Airport, VA
on Sunday, December 7, 2008
| Daily Summary |
| | Actual | Average | Record |
| Temperature |
| Mean Temperature |
°F
|
38°F
|
|
| Max Temperature |
33°F
|
48°F
|
77°F
(1998) |
| Min Temperature |
20°F
|
28°F
|
1°F
(2002) |
| Degree Days |
| Heating Degree Days |
38 |
26 |
|
| Month to date heating degree days |
212 |
177 |
|
| Since 1 July heating degree days |
1165 |
1154 |
|
| Cooling Degree Days |
0 |
0 |
|
| Month to date cooling degree days |
0 |
0 |
|
| Year to date cooling degree days |
1171 |
1075 |
|
| Moisture |
| Dew Point |
12°F
| | |
| Average Humidity |
65 |
|
|
| Maximum Humidity |
100 |
|
|
| Minimum Humidity |
29 |
|
|
| Precipitation |
| Precipitation |
T in
|
0.10 in
|
1.13 in
(1976) |
| Month to date precipitation |
0.06 |
0.70 |
|
| Year to date precipitation |
41.44 |
39.43 |
|
| Snow |
| Snow |
T in
|
in
|
T in
(0.0) |
| Month to date snowfall |
T |
T |
|
| Since 1 July snowfall |
T |
0.9 |
|
| Snow Depth |
0.00 in
|
| |
| Wind |
| Wind Speed |
12 mph
| | |
| Max Wind Speed |
33 mph
| | |
| Max Gust Speed |
48 mph
| | |
| Visibility |
9 miles
| | |
| Events |
| | |
|
| Key: T is trace of precipitation, MM is missing value |
|
Source: NWS Daily Summary |
| Time(EST) | Temperature | Dew Point | Humidity | Pressure | Visibility | Wind Direction | Wind Speed | Gust Speed | Precipitation | Events | Conditions |
|---|
| 12:52 AM |
27.0°F
|
25.0°F
|
92% |
29.83 in
|
8.0 miles
|
SSW |
3.5 mph
|
-
|
N/A |
|
Mostly Cloudy |
| 1:52 AM |
28.0°F
|
26.1°F
|
92% |
29.81 in
|
8.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 2:52 AM |
27.0°F
|
25.0°F
|
92% |
29.81 in
|
7.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 3:52 AM |
25.0°F
|
24.1°F
|
96% |
29.80 in
|
7.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Mostly Cloudy |
| 4:52 AM |
27.0°F
|
25.0°F
|
92% |
29.80 in
|
7.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Overcast |
| 5:52 AM |
32.0°F
|
24.1°F
|
73% |
29.82 in
|
10.0 miles
|
West |
9.2 mph
|
17.3 mph
|
N/A |
|
Mostly Cloudy |
| 6:52 AM |
32.0°F
|
17.1°F
|
54% |
29.84 in
|
10.0 miles
|
West |
13.8 mph
|
25.3 mph
|
N/A |
|
Scattered Clouds |
| 7:52 AM |
30.9°F
|
15.1°F
|
52% |
29.89 in
|
10.0 miles
|
WNW |
15.0 mph
|
24.2 mph
|
0.00 in
|
|
Scattered Clouds |
| 8:52 AM |
32.0°F
|
16.0°F
|
52% |
29.93 in
|
10.0 miles
|
WNW |
17.3 mph
|
24.2 mph
|
N/A |
|
Scattered Clouds |
| 9:52 AM |
32.0°F
|
12.0°F
|
44% |
29.97 in
|
10.0 miles
|
WNW |
17.3 mph
|
34.5 mph
|
N/A |
|
Partly Cloudy |
| 10:52 AM |
32.0°F
|
3.9°F
|
31% |
29.99 in
|
10.0 miles
|
WNW |
24.2 mph
|
48.3 mph
|
N/A |
|
Scattered Clouds |
| 11:52 AM |
32.0°F
|
3.9°F
|
31% |
29.99 in
|
10.0 miles
|
WNW |
21.9 mph
|
32.2 mph
|
N/A |
|
Scattered Clouds |
| 12:52 PM |
33.1°F
|
5.0°F
|
31% |
30.01 in
|
10.0 miles
|
WNW |
20.7 mph
|
34.5 mph
|
N/A |
|
Scattered Clouds |
| 1:52 PM |
32.0°F
|
5.0°F
|
32% |
30.02 in
|
10.0 miles
|
WNW |
21.9 mph
|
35.7 mph
|
N/A |
|
Scattered Clouds |
| 2:52 PM |
32.0°F
|
5.0°F
|
32% |
30.05 in
|
10.0 miles
|
NW |
24.2 mph
|
34.5 mph
|
N/A |
|
Scattered Clouds |
| 3:52 PM |
30.0°F
|
3.0°F
|
32% |
30.07 in
|
10.0 miles
|
WNW |
18.4 mph
|
32.2 mph
|
N/A |
|
Partly Cloudy |
| 4:52 PM |
28.0°F
|
3.9°F
|
36% |
30.12 in
|
10.0 miles
|
NW |
18.4 mph
|
26.5 mph
|
N/A |
|
Clear |
| 5:52 PM |
27.0°F
|
3.0°F
|
36% |
30.17 in
|
10.0 miles
|
NW |
9.2 mph
|
19.6 mph
|
N/A |
|
Clear |
| 6:52 PM |
26.1°F
|
3.0°F
|
37% |
30.20 in
|
10.0 miles
|
NW |
15.0 mph
|
25.3 mph
|
N/A |
|
Clear |
| 7:52 PM |
25.0°F
|
3.9°F
|
41% |
30.23 in
|
10.0 miles
|
NW |
11.5 mph
|
-
|
N/A |
|
Clear |
| 8:52 PM |
24.1°F
|
3.9°F
|
42% |
30.25 in
|
10.0 miles
|
NW |
13.8 mph
|
19.6 mph
|
N/A |
|
Clear |
| 9:52 PM |
23.0°F
|
5.0°F
|
46% |
30.28 in
|
10.0 miles
|
NW |
9.2 mph
|
-
|
N/A |
|
Clear |
| 10:52 PM |
21.0°F
|
5.0°F
|
50% |
30.30 in
|
10.0 miles
|
Calm |
Calm |
-
|
N/A |
|
Clear |
| 11:52 PM |
21.9°F
|
6.1°F
|
51% |
30.32 in
|
10.0 miles
|
West |
9.2 mph
|
-
|
N/A |
|
Scattered Clouds |
|
|
|
