and then 
to Add to home screen SEPTEMBER 13TH, 1922-The temperature at El Azizia in Libyia soared to 136 degrees to estbalish a world record, which still stands today as the highest recorded temperature.
Rise 6:50AM
Set 7:20PM
Reporting Station : Manassas Municipal, VA
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28°C
Scattered clouds. Warm.
- 56%
- 15 km/hENE
-
56%
Humidity -
18°C
Dew Point -
29°C
Comfort Level -
16 km
Visibility -
1022.40 mb
Barometric Pressure - Air Quality
Waxing gibbous
Rise4:57PM
Set1:04AM
FRIDAY AFTERNOON
IAD / No delays
Previously
| SEPTEMBER 13TH, 1922 |
The temperature at El Azizia in Libyia soared to 136 degrees to estbalish a world record, which still stands today as the highest recorded temperature. |
| SEPTEMBER 13TH, 1928 |
Hurricane San Felipe crossed Puerto Rico resulting in the highest winds, the heaviest rains, and the greatest destruction in years. The hurricane produced much damage in the Virgin Islands, and later hit the Bahamas and Florida. |
| SEPTEMBER 12TH, 1977 |
Thunderstorms deluged the Kansas City area with torrential rains in the early morning hours, and then again that evening. Some places were deluged with more than six inches of rain twice that day, with up to 18 inches of rain reported at Independence MO. Flooding claimed the lives of 25 persons. The Country Club Plaza area was hardest hit. 2000 vehicles had to be towed following the storm, 150 of which had to be pulled out of Brush Creek, which runs through the Plaza area. |
| SEPTEMBER 12TH, 1979 |
Hurricane Frederick smashed into the Mobile Bay area of Alabama packing 132 mph winds. Winds gusts to 145 mph were reported as the eye of the hurricane moved over Dauphin Island AL, just west of Mobile. Frederick produced a fifteen foot storm surge near the mouth of Mobile Bay. The hurricane was the costliest in U.S. history causing 2.3 billion dollars damage. |
| SEPTEMBER 11TH, 1961 |
Very large and slow moving Hurricane Carla made landfall near Port Lavaca TX. Carla battered the central Texas coast with wind gusts to 175 mph, and up to 16 inches of rain, and spawned a vicious tornado which swept across Galveston Island killing eight persons. The hurricane claimed 45 lives, and caused 300 million dollars damage. The remnants of Carla produced heavy rain in the Lower Missouri Valley and southern sections of the Upper Great Lakes Region. |
| SEPTEMBER 11TH, 1961 |
Very large and slow moving Hurricane Carla made landfall near Port Lavaca TX. Carla battered the central Texas coast with wind gusts to 175 mph, and up to 16 inches of rain, and spawned a vicious tornado which swept across Galveston Island killing eight persons. The hurricane claimed 45 lives, and caused 300 million dollars damage. The remnants of Carla produced heavy rain in the Lower Missouri Valley and southern sections of the Upper Great Lakes Region. |
| SEPTEMBER 10TH, 1919 |
A hurricane struck the Florida Keys drowning more than 500 persons. |
| SEPTEMBER 10TH, 1960 |
Hurricane Donna struck the Florida Keys, with winds gusting to 180 mph and a thirteen foot storm surge. The hurricane then moved north along the eastern coast of Florida and inundated Naples before moving out to sea. Hurricane Donna claimed fifty lives, injured 1800 others, and caused more than 300 million dollars damage. Hurricane Donna wreaked havoc from Florida to Maine, with wind gusts to 100 mph along much of the coast. The hurricane finally died over Maine two days later, producing more than five inches of rain over the state. |
| SEPTEMBER 9TH, 1921 |
A dying tropical depression unloaded 38.2 inches of rain upon the town of Thrall in southeastern Texas killing 224 persons. 36.4 inches fell in 18 hours. |
| SEPTEMBER 9TH, 1944 |
The "Great Atlantic Hurricane" ravaged the east coast. The storm killed 22 persons and caused 63 million dollars damage in the Chesapeake Bay area, then besieged New England killing 390 persons and causing another 100 million dollars damage. |
| SEPTEMBER 8TH, 1900 |
The greatest weather disaster in U.S. records occurred when a hurricane struck Galveston TX. A tide fifteen feet high washed over the island demolishing or carrying away buildings, and drowning more than 6000 persons. The hurricane destroyed more than 3600 houses, and total damage was more than thirty million dollars. Winds to 120 mph, and a twenty foot storm surge accompanied the hurricane. Following the storm, the surf was three hundred feet inland from the former water line. The hurricane claimed another 1200 lives outside of the Galveston area. |
Wind Advisory
| 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 6:50AM
Set 7:20PM
Waxing gibbous
Rise4:57PM
Set1:04AM
FRIDAY AFTERNOON
IAD / No delays
| History | |||
| Weather Station: Washington-Dulles International Airport , VA , US | |||
| September Data | Choose another month |
| Averages | |
|
Average High Temperature
4.40 °C
|
Average Low Temperature
-6.10 °C
|
|
Average Mean Temp
-0.60 °C
|
Average Dew Point
-6.10 °C
|
|
Average Windspeed
20.40 km/h
|
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)
7.11
|
|
Average Snowfall (US Only)
20.30
|
|
| 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
23.90 °C
|
Record Low
-27.80 °C
|
|
Record Wind Speed
100.00 km/h
|
Record Monthly Snowfall
73.6 cm
|
Record 24-hour Snowfall
27.90 cm
|
Record Monthly Rainfall
168 mm
|
Record 24-hour Rainfall
41 mm
|
Record Minimum Monthly Precipitation
1.02 mm
|
| Averages | |
|
Average High Temperature
6.70 °C
|
Average Low Temperature
-5.00 °C
|
|
Average Mean Temp
1.10 °C
|
Average Dew Point
-5.60 °C
|
|
Average Windspeed
20.40 km/h
|
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)
7.11
|
|
Average Snowfall (US Only)
17.80
|
|
| 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
26.10 °C
|
Record Low
-25.60 °C
|
|
Record Wind Speed
85.20 km/h
|
Record Monthly Snowfall
71.1 cm
|
Record 24-hour Snowfall
58.40 cm
|
Record Monthly Rainfall
147 mm
|
Record 24-hour Rainfall
53 mm
|
Record Minimum Monthly Precipitation
0.51 mm
|
| Averages | |
|
Average High Temperature
12.80 °C
|
Average Low Temperature
0.00 °C
|
|
Average Mean Temp
6.70 °C
|
Average Dew Point
-1.10 °C
|
|
Average Windspeed
20.40 km/h
|
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)
7.87
|
|
Average Snowfall (US Only)
7.60
|
|
| 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
31.70 °C
|
Record Low
-14.40 °C
|
|
Record Wind Speed
98.20 km/h
|
Record Monthly Snowfall
27.9 cm
|
Record 24-hour Snowfall
15.20 cm
|
Record Monthly Rainfall
147 mm
|
Record 24-hour Rainfall
46 mm
|
Record Minimum Monthly Precipitation
2.54 mm
|
| Averages | |
|
Average High Temperature
18.30 °C
|
Average Low Temperature
4.40 °C
|
|
Average Mean Temp
11.70 °C
|
Average Dew Point
3.90 °C
|
|
Average Windspeed
20.40 km/h
|
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)
7.87
|
|
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
33.30 °C
|
Record Low
-8.30 °C
|
|
Record Wind Speed
109.30 km/h
|
Record Monthly Snowfall
10.2 cm
|
Record 24-hour Snowfall
7.60 cm
|
Record Monthly Rainfall
185 mm
|
Record 24-hour Rainfall
53 mm
|
Record Minimum Monthly Precipitation
0.76 mm
|
| Averages | |
|
Average High Temperature
23.30 °C
|
Average Low Temperature
10.00 °C
|
|
Average Mean Temp
17.20 °C
|
Average Dew Point
10.60 °C
|
|
Average Windspeed
13.00 km/h
|
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)
10.15
|
|
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
36.10 °C
|
Record Low
-2.20 °C
|
|
Record Wind Speed
85.20 km/h
|
Record Monthly Snowfall
* cm
|
Record 24-hour Snowfall
* cm
|
Record Monthly Rainfall
261 mm
|
Record 24-hour Rainfall
79 mm
|
Record Minimum Monthly Precipitation
2.03 mm
|
| Averages | |
|
Average High Temperature
28.30 °C
|
Average Low Temperature
15.00 °C
|
|
Average Mean Temp
21.70 °C
|
Average Dew Point
16.10 °C
|
|
Average Windspeed
11.10 km/h
|
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)
9.90
|
|
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
37.80 °C
|
Record Low
2.20 °C
|
|
Record Wind Speed
118.50 km/h
|
Record Monthly Snowfall
0.0 cm
|
Record 24-hour Snowfall
0.00 cm
|
Record Monthly Rainfall
462 mm
|
Record 24-hour Rainfall
279 mm
|
Record Minimum Monthly Precipitation
1.27 mm
|
| Averages | |
|
Average High Temperature
30.60 °C
|
Average Low Temperature
17.80 °C
|
|
Average Mean Temp
24.40 °C
|
Average Dew Point
18.30 °C
|
|
Average Windspeed
11.10 km/h
|
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)
8.88
|
|
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
40.00 °C
|
Record Low
5.00 °C
|
|
Record Wind Speed
125.90 km/h
|
Record Monthly Snowfall
0.0 cm
|
Record 24-hour Snowfall
0.00 cm
|
Record Monthly Rainfall
180 mm
|
Record 24-hour Rainfall
66 mm
|
Record Minimum Monthly Precipitation
2.28 mm
|
| Averages | |
|
Average High Temperature
30.00 °C
|
Average Low Temperature
17.20 °C
|
|
Average Mean Temp
23.30 °C
|
Average Dew Point
17.80 °C
|
|
Average Windspeed
11.10 km/h
|
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)
10.15
|
|
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
40.00 °C
|
Record Low
3.30 °C
|
|
Record Wind Speed
109.30 km/h
|
Record Monthly Snowfall
0.0 cm
|
Record 24-hour Snowfall
0.00 cm
|
Record Monthly Rainfall
272 mm
|
Record 24-hour Rainfall
119 mm
|
Record Minimum Monthly Precipitation
2.03 mm
|
| Averages | |
|
Average High Temperature
26.10 °C
|
Average Low Temperature
12.80 °C
|
|
Average Mean Temp
19.40 °C
|
Average Dew Point
14.40 °C
|
|
Average Windspeed
11.10 km/h
|
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)
8.63
|
|
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
37.20 °C
|
Record Low
-1.10 °C
|
|
Record Wind Speed
87.00 km/h
|
Record Monthly Snowfall
0.0 cm
|
Record 24-hour Snowfall
0.00 cm
|
Record Monthly Rainfall
287 mm
|
Record 24-hour Rainfall
140 mm
|
Record Minimum Monthly Precipitation
1.52 mm
|
| Averages | |
|
Average High Temperature
20.00 °C
|
Average Low Temperature
5.60 °C
|
|
Average Mean Temp
12.80 °C
|
Average Dew Point
7.20 °C
|
|
Average Windspeed
11.10 km/h
|
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)
8.38
|
|
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
32.20 °C
|
Record Low
-9.40 °C
|
|
Record Wind Speed
83.30 km/h
|
Record Monthly Snowfall
2.5 cm
|
Record 24-hour Snowfall
2.50 cm
|
Record Monthly Rainfall
234 mm
|
Record 24-hour Rainfall
104 mm
|
Record Minimum Monthly Precipitation
* mm
|
| Averages | |
|
Average High Temperature
13.90 °C
|
Average Low Temperature
1.10 °C
|
|
Average Mean Temp
7.80 °C
|
Average Dew Point
1.70 °C
|
|
Average Windspeed
18.50 km/h
|
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)
8.12
|
|
Average Snowfall (US Only)
2.50
|
|
| 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
28.90 °C
|
Record Low
-12.80 °C
|
|
Record Wind Speed
85.20 km/h
|
Record Monthly Snowfall
27.9 cm
|
Record 24-hour Snowfall
27.90 cm
|
Record Monthly Rainfall
198 mm
|
Record 24-hour Rainfall
61 mm
|
Record Minimum Monthly Precipitation
0.51 mm
|
| Averages | |
|
Average High Temperature
7.20 °C
|
Average Low Temperature
-3.30 °C
|
|
Average Mean Temp
2.20 °C
|
Average Dew Point
-3.30 °C
|
|
Average Windspeed
20.40 km/h
|
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)
8.12
|
|
Average Snowfall (US Only)
10.20
|
|
| 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
25.60 °C
|
Record Low
-20.00 °C
|
|
Record Wind Speed
100.00 km/h
|
Record Monthly Snowfall
60.9 cm
|
Record 24-hour Snowfall
27.90 cm
|
Record Monthly Rainfall
170 mm
|
Record 24-hour Rainfall
74 mm
|
Record Minimum Monthly Precipitation
1.02 mm
|
Rise 6:50AM
Set 7:20PM
Waxing gibbous
Rise4:57PM
Set1:04AM
FRIDAY AFTERNOON
IAD / No delays
| Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
| Friday |  |
Fire danger low | 18% | 23% |
| Saturday | |
Fire danger low | 18% | 23% |
| Sunday | |
Fire danger low | 18% | 23% |
| Monday | |
Fire danger low | 18% | 23% |
| Tuesday |  |
Fire danger very low | 18% | 23% |
| Wednesday | |
Fire danger very low | 18% | 23% |
Rise 6:50AM
Set 7:20PM
Waxing gibbous
Rise4:57PM
Set1:04AM
FRIDAY AFTERNOON
IAD / No delays
Rise 6:50AM
Set 7:20PM
Waxing gibbous
Rise4:57PM
Set1:04AM
FRIDAY AFTERNOON
IAD / No delays
Snow conditions provided by SnoCountry Mountain Reports™