Reporting Station : Leesburg / Godfrey, VA
0 Weather Alerts
for your area.
Clear. Chilly.
Rise 7:21AM
Set 4:48PM
Waxing gibbous
Rise3:54PM
Set6:46AM
SATURDAY NIGHT
IAD / No delays
DECEMBER 14TH, 1924-The temperature at Helena MT plunged 79 degrees in 24 hours, and 88 degrees in 34 hours. The mercury plummeted from 63 above to 25 below zero. At Fairfield MT the temperature plunged 84 degrees in just 12 hours, from 63 at Noon to 21 below zero at midnight.
| DECEMBER 14TH, 1924 |
The temperature at Helena MT plunged 79 degrees in 24 hours, and 88 degrees in 34 hours. The mercury plummeted from 63 above to 25 below zero. At Fairfield MT the temperature plunged 84 degrees in just 12 hours, from 63 at Noon to 21 below zero at midnight. |
| DECEMBER 14TH, 1987 |
A powerful storm spread heavy snow from the Southern High Plains to the Middle Mississippi Valley, and produced severe thunderstorms in the Lower Mississippi Valley. During the evening a tornado hit West Memphis TN killing six persons and injuring two hundred others. The tornado left 1500 persons homeless, and left all of the residents of Crittendon County without electricity. Kansas City MO was blanketed with 10.8 inches of snow, a 24 hour record for December, and snowfall totals in the Oklahoma panhandle ranged up to 14 inches. |
| DECEMBER 13TH, 1915 |
A heavy snowstorm kicked off the snowiest winter in modern records for western New England. |
| DECEMBER 13TH, 1962 |
A severe Florida freeze occurred. Morning lows reached 35 degrees at Miami, 18 degrees at Tampa, and 12 degrees at Jacksonville. It was the coldest December weather of the 20th century and caused millions of dollars damage to crops and foliage. In Georgia, the morning low of 9 degrees below zero at Blairsville established a state record for the month of December. |
| DECEMBER 12TH, 1969 |
The worst tornado of record for western Washington State tracked south of Seattle, traveling five miles, from Des Moines to Kent. The tornado, 50 to 200 yards in width, began as a waterspout over Puget Sound. One person was injured and the tornado caused half a million dollars damage. Portland OR was drenched with 7.66 inches of rain, a record 24 hour total for that location. (12th-13th) |
| DECEMBER 12TH, 1960 |
The first of three Middle Atlantic snowstorms produced a foot of snow at Baltimore MD. A pre-winter blizzard struck the northeastern U.S. producing wind gusts as high as 51 mph, along with 16 inches of snow at Nantucket MA, and 20 inches at Newark NJ. |
| DECEMBER 11TH, 1932 |
Very cold weather prevailed along the West Coast. San Francisco received 0.8 inch of snow, and at the airport the temperature dipped to 20 degrees. At Sacramento CA, the mercury dipped to 17 degrees to establish an all-time record low for that location. Morning lows were below freezing from the 9th to the 15th at Sacramento, and the high on the 11th was just 34 degrees. The cold wave dealt severe damage to truck crops and orange groves in the Sacramento Valley. |
| DECEMBER 11TH, 1989 |
Strong Santa Ana winds developed across southern California and parts of central California. Winds in Kern County of central California gusted to 100 mph near Grapevine. The high winds reduced visibilities to near zero in the desert areas, closing major interstate highways east of Ontario CA. |
| DECEMBER 10TH, 1699 |
A severe ice storm hit Boston MA causing much damage to orchards. |
| DECEMBER 10TH, 1949 |
The barometric pressure at Las Vegas NV reached a record low reading of 29.17 inches (987.8 millibars). |
| DECEMBER 9TH, 1786 |
A second great snowstorm in just five days brought another 15 inches of snow to Morristown NJ, on top of the eight inches which fell on the 7th and 8th, and the 18 inches which fell on the 4th and 5th. The total snowfall for the week was thus 41 inches. New Haven CT received 17 inches of new snow in the storm. Up to four four feet of snow covered the ground in eastern Massachusetts following the storms. |
| Issued By | NWS Field Office | Broadcast Time | Mon, 29 Dec 2014 03:43:00 PST |
| Issuing Time | Mon, 29 Dec 2014 03:43:00 PST | Valid Until | Mon, 29 Dec 2014 03:43:00 PST |
Strong northerly winds are forecast to develop across the San Francisco Bay Area by midday Tuesday and continue through midday Wednesday. A strong..cold and dry storm system will sweep into northern and central California late Monday night and Tuesday morning. This system will generate strong and gusty north to northest winds across the region from midday Tuesday through midday Wednesday.
Rise 7:21AM
Set 4:48PM
Waxing gibbous
Rise3:54PM
Set6:46AM
SATURDAY NIGHT
IAD / No delays
| History | |||
| Weather Station: Washington-Dulles International Airport , VA , US | |||
| December Data | Choose another month |
| Averages | |
|
Average High Temperature
39.92 °F
|
Average Low Temperature
21.02 °F
|
|
Average Mean Temp
30.92 °F
|
Average Dew Point
21.02 °F
|
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
|
Average Morning Relative Humidity
76.0
|
Average Afternoon Relative Humidity
56.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
2.80
|
|
Average Snowfall (US Only)
8.00
|
|
| Daily Counts | |
|
Days With Precipitation
10
|
Days With Thunderstorms
*
|
|
Days With Fog
12
|
Days With Snow
4
|
Days With Lows Below Freezing
26
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
75.02 °F
|
Record Low
-18.04 °F
|
|
Record Wind Speed
62.00 mph
|
Record Monthly Snowfall
73.6 "
|
Record 24-hour Snowfall
10.99 "
|
Record Monthly Rainfall
6.62 "
|
Record 24-hour Rainfall
1.62 "
|
Record Minimum Monthly Precipitation
0.40 "
|
| Averages | |
|
Average High Temperature
44.06 °F
|
Average Low Temperature
23.00 °F
|
|
Average Mean Temp
33.98 °F
|
Average Dew Point
21.92 °F
|
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
|
Average Morning Relative Humidity
77.0
|
Average Afternoon Relative Humidity
52.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
2.80
|
|
Average Snowfall (US Only)
7.01
|
|
| Daily Counts | |
|
Days With Precipitation
9
|
Days With Thunderstorms
*
|
|
Days With Fog
10
|
Days With Snow
3
|
Days With Lows Below Freezing
23
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
78.98 °F
|
Record Low
-14.08 °F
|
|
Record Wind Speed
52.82 mph
|
Record Monthly Snowfall
71.1 "
|
Record 24-hour Snowfall
23.01 "
|
Record Monthly Rainfall
5.79 "
|
Record 24-hour Rainfall
2.09 "
|
Record Minimum Monthly Precipitation
0.20 "
|
| Averages | |
|
Average High Temperature
55.04 °F
|
Average Low Temperature
32.00 °F
|
|
Average Mean Temp
44.06 °F
|
Average Dew Point
30.02 °F
|
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
|
Average Morning Relative Humidity
77.0
|
Average Afternoon Relative Humidity
48.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.10
|
|
Average Snowfall (US Only)
2.99
|
|
| Daily Counts | |
|
Days With Precipitation
10
|
Days With Thunderstorms
1
|
|
Days With Fog
11
|
Days With Snow
2
|
Days With Lows Below Freezing
17
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
89.06 °F
|
Record Low
6.08 °F
|
|
Record Wind Speed
60.88 mph
|
Record Monthly Snowfall
27.9 "
|
Record 24-hour Snowfall
5.99 "
|
Record Monthly Rainfall
5.79 "
|
Record 24-hour Rainfall
1.81 "
|
Record Minimum Monthly Precipitation
1.00 "
|
| Averages | |
|
Average High Temperature
64.94 °F
|
Average Low Temperature
39.92 °F
|
|
Average Mean Temp
53.06 °F
|
Average Dew Point
39.02 °F
|
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
|
Average Morning Relative Humidity
77.0
|
Average Afternoon Relative Humidity
46.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.10
|
|
Average Snowfall (US Only)
*
|
|
| Daily Counts | |
|
Days With Precipitation
10
|
Days With Thunderstorms
2
|
|
Days With Fog
11
|
Days With Snow
*
|
Days With Lows Below Freezing
6
|
Days above 90° F (32.2° C)
*
|
| Records | |
|
Record High
91.94 °F
|
Record Low
17.06 °F
|
|
Record Wind Speed
67.77 mph
|
Record Monthly Snowfall
10.2 "
|
Record 24-hour Snowfall
2.99 "
|
Record Monthly Rainfall
7.29 "
|
Record 24-hour Rainfall
2.09 "
|
Record Minimum Monthly Precipitation
0.30 "
|
| Averages | |
|
Average High Temperature
73.94 °F
|
Average Low Temperature
50.00 °F
|
|
Average Mean Temp
62.96 °F
|
Average Dew Point
51.08 °F
|
|
Average Windspeed
8.06 mph
|
Average Wind Direction
180.0
|
|
Average Morning Relative Humidity
82.0
|
Average Afternoon Relative Humidity
53.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
4.00
|
|
Average Snowfall (US Only)
*
|
|
| Daily Counts | |
|
Days With Precipitation
12
|
Days With Thunderstorms
4
|
|
Days With Fog
15
|
Days With Snow
0
|
Days With Lows Below Freezing
*
|
Days above 90° F (32.2° C)
1
|
| Records | |
|
Record High
96.98 °F
|
Record Low
28.04 °F
|
|
Record Wind Speed
52.82 mph
|
Record Monthly Snowfall
* "
|
Record 24-hour Snowfall
* "
|
Record Monthly Rainfall
10.28 "
|
Record 24-hour Rainfall
3.11 "
|
Record Minimum Monthly Precipitation
0.80 "
|
| Averages | |
|
Average High Temperature
82.94 °F
|
Average Low Temperature
59.00 °F
|
|
Average Mean Temp
71.06 °F
|
Average Dew Point
60.98 °F
|
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
|
Average Morning Relative Humidity
84.0
|
Average Afternoon Relative Humidity
54.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.90
|
|
Average Snowfall (US Only)
0.00
|
|
| Daily Counts | |
|
Days With Precipitation
10
|
Days With Thunderstorms
6
|
|
Days With Fog
16
|
Days With Snow
0
|
Days With Lows Below Freezing
0
|
Days above 90° F (32.2° C)
5
|
| Records | |
|
Record High
100.04 °F
|
Record Low
35.96 °F
|
|
Record Wind Speed
73.47 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
18.20 "
|
Record 24-hour Rainfall
10.99 "
|
Record Minimum Monthly Precipitation
0.50 "
|
| Averages | |
|
Average High Temperature
87.08 °F
|
Average Low Temperature
64.04 °F
|
|
Average Mean Temp
75.92 °F
|
Average Dew Point
64.94 °F
|
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
|
Average Morning Relative Humidity
85.0
|
Average Afternoon Relative Humidity
54.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.50
|
|
Average Snowfall (US Only)
0.00
|
|
| Daily Counts | |
|
Days With Precipitation
10
|
Days With Thunderstorms
6
|
|
Days With Fog
19
|
Days With Snow
0
|
Days With Lows Below Freezing
0
|
Days above 90° F (32.2° C)
11
|
| Records | |
|
Record High
104.00 °F
|
Record Low
41.00 °F
|
|
Record Wind Speed
78.06 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
7.09 "
|
Record 24-hour Rainfall
2.60 "
|
Record Minimum Monthly Precipitation
0.90 "
|
| Averages | |
|
Average High Temperature
86.00 °F
|
Average Low Temperature
62.96 °F
|
|
Average Mean Temp
73.94 °F
|
Average Dew Point
64.04 °F
|
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
|
Average Morning Relative Humidity
88.0
|
Average Afternoon Relative Humidity
55.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
4.00
|
|
Average Snowfall (US Only)
0.00
|
|
| Daily Counts | |
|
Days With Precipitation
10
|
Days With Thunderstorms
5
|
|
Days With Fog
21
|
Days With Snow
0
|
Days With Lows Below Freezing
0
|
Days above 90° F (32.2° C)
8
|
| Records | |
|
Record High
104.00 °F
|
Record Low
37.94 °F
|
|
Record Wind Speed
67.77 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
10.72 "
|
Record 24-hour Rainfall
4.69 "
|
Record Minimum Monthly Precipitation
0.80 "
|
| Averages | |
|
Average High Temperature
78.98 °F
|
Average Low Temperature
55.04 °F
|
|
Average Mean Temp
66.92 °F
|
Average Dew Point
57.92 °F
|
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
|
Average Morning Relative Humidity
89.0
|
Average Afternoon Relative Humidity
55.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.40
|
|
Average Snowfall (US Only)
0.00
|
|
| Daily Counts | |
|
Days With Precipitation
8
|
Days With Thunderstorms
2
|
|
Days With Fog
19
|
Days With Snow
0
|
Days With Lows Below Freezing
*
|
Days above 90° F (32.2° C)
3
|
| Records | |
|
Record High
98.96 °F
|
Record Low
30.02 °F
|
|
Record Wind Speed
53.94 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
11.31 "
|
Record 24-hour Rainfall
5.52 "
|
Record Minimum Monthly Precipitation
0.60 "
|
| Averages | |
|
Average High Temperature
68.00 °F
|
Average Low Temperature
42.08 °F
|
|
Average Mean Temp
55.04 °F
|
Average Dew Point
44.96 °F
|
|
Average Windspeed
6.88 mph
|
Average Wind Direction
180.0
|
|
Average Morning Relative Humidity
88.0
|
Average Afternoon Relative Humidity
52.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.30
|
|
Average Snowfall (US Only)
*
|
|
| Daily Counts | |
|
Days With Precipitation
8
|
Days With Thunderstorms
1
|
|
Days With Fog
15
|
Days With Snow
*
|
Days With Lows Below Freezing
5
|
Days above 90° F (32.2° C)
*
|
| Records | |
|
Record High
89.96 °F
|
Record Low
15.08 °F
|
|
Record Wind Speed
51.65 mph
|
Record Monthly Snowfall
2.5 "
|
Record 24-hour Snowfall
0.98 "
|
Record Monthly Rainfall
9.22 "
|
Record 24-hour Rainfall
4.10 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
57.02 °F
|
Average Low Temperature
33.98 °F
|
|
Average Mean Temp
46.04 °F
|
Average Dew Point
35.06 °F
|
|
Average Windspeed
11.47 mph
|
Average Wind Direction
315.0
|
|
Average Morning Relative Humidity
83.0
|
Average Afternoon Relative Humidity
54.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.20
|
|
Average Snowfall (US Only)
0.98
|
|
| Daily Counts | |
|
Days With Precipitation
9
|
Days With Thunderstorms
1
|
|
Days With Fog
12
|
Days With Snow
1
|
Days With Lows Below Freezing
15
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
84.02 °F
|
Record Low
8.96 °F
|
|
Record Wind Speed
52.82 mph
|
Record Monthly Snowfall
27.9 "
|
Record 24-hour Snowfall
10.99 "
|
Record Monthly Rainfall
7.80 "
|
Record 24-hour Rainfall
2.40 "
|
Record Minimum Monthly Precipitation
0.20 "
|
| Averages | |
|
Average High Temperature
44.96 °F
|
Average Low Temperature
26.06 °F
|
|
Average Mean Temp
35.96 °F
|
Average Dew Point
26.06 °F
|
|
Average Windspeed
12.65 mph
|
Average Wind Direction
315.0
|
|
Average Morning Relative Humidity
78.0
|
Average Afternoon Relative Humidity
57.0
|
|
Typical Sky Cover
OVR
|
Average Precipitation (US Only)
3.20
|
|
Average Snowfall (US Only)
4.02
|
|
| Daily Counts | |
|
Days With Precipitation
10
|
Days With Thunderstorms
*
|
|
Days With Fog
12
|
Days With Snow
2
|
Days With Lows Below Freezing
24
|
Days above 90° F (32.2° C)
0
|
| Records | |
|
Record High
78.08 °F
|
Record Low
-4.00 °F
|
|
Record Wind Speed
62.00 mph
|
Record Monthly Snowfall
60.9 "
|
Record 24-hour Snowfall
10.99 "
|
Record Monthly Rainfall
6.70 "
|
Record 24-hour Rainfall
2.92 "
|
Record Minimum Monthly Precipitation
0.40 "
|
Rise 7:21AM
Set 4:48PM
Waxing gibbous
Rise3:54PM
Set6:46AM
SATURDAY NIGHT
IAD / No delays
| Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
| Saturday |  |
Fire danger very low | 30% | 31% |
| Sunday | |
Fire danger very low | 30% | 31% |
| Monday | |
Fire danger very low | 30% | 31% |
| Tuesday | |
Fire danger very low | 30% | 31% |
| Wednesday | |
Fire danger very low | 30% | 31% |
| Thursday | |
Fire danger very low | 30% | 31% |
Rise 7:21AM
Set 4:48PM
Waxing gibbous
Rise3:54PM
Set6:46AM
SATURDAY NIGHT
IAD / No delays
Rise 7:21AM
Set 4:48PM
Waxing gibbous
Rise3:54PM
Set6:46AM
SATURDAY NIGHT
IAD / No delays
and then 
to Add to home screen