Reporting Station : San Francisco International Airport, CA
61%
Humidity
11°C
Dew Point
18°C
Comfort Level
16 km
Visibility
1016.60 mb
Barometric Pressure
Air Quality
Last Quarter
Rise 3:17AM
Set 1:56PM
THURSDAY AFTERNOON
SFO / No delays
MAY 2ND, 1929-Virginia's worst tornado disaster occurred. Six tornadoes, two of which were west of the Blue Mountains, killed 22 people. Twelve children and a teacher were killed at Rye Cove, in Scott County. Four schools were destroyed by the storms.
MAY 2ND, 1929
Virginia's worst tornado disaster occurred. Six tornadoes, two of which were west of the Blue Mountains, killed 22 people. Twelve children and a teacher were killed at Rye Cove, in Scott County. Four schools were destroyed by the storms.
MAY 2ND, 1899
A storm buried Havre MT under 24.8 inches of snow, an all-time record for that location. The water equivalent of 2.48 inches was a record 24 hour total for the month of May.
MAY 1ST, 1854
The Connecticut River reached a level of nearly twenty-nine feet at Hartford (the highest level of record up until that time). The record height was reached in the midst of a great New England flood which followed sixty-six hours of steady rain.
MAY 1ST, 1954
The temperature at Polebridge MT dipped to 5 degrees below zero to esablish a state record for the month of May.
APRIL 30TH, 1990
Late afternoon and evening thunderstorms produced severe weather in southern Virginia and the Carolinas, with tennis ball size hail reported southeast of Chesnee SC. Thunderstorms moving over the Chesapeake Bay flooded U.S. Highway 50 on Kent Island MD with several inches of water resulting in a seventeen-mile long traffic jam.
APRIL 30TH, 1852
A tornado, following the same track as the famous "Tri-state Tornado" of 1925, struck the town of New Harmony IND. Just sixteen persons were killed by the twister, due to the sparse settlement. The "Tri-state Tornado" killed 695 persons.
APRIL 29TH, 1905
The town of Taylor, in southeastern Texas, was deluged with 2.4 inches of rain in fifteen minutes.
APRIL 29TH, 1973
The Mississippi River reached a crest of 43.4 feet, breaking the prevous record of 42 feet established in 1785.
APRIL 28TH, 1921
A severe hailstorm in Anson County NC produced hail the size of baseballs. Gardens, grain fields and trees were destroyed. Pine trees in the storm's path had to be cut for lumber because of the hail damage.
APRIL 28TH, 1928
A coastal storm produced tremendous late season snows in the Central Appalachians, including 35 inches at Bayard WV, 31 inches at Somerset PA, and 30 inches at Grantsville MD. High winds accompanying the heavy wet snow uprooted trees and unroofed a number of homes. The storm caused great damage to fruit trees and wild life.
APRIL 27TH, 1931
The temperature at Pahala, located on the main island of Hawaii, soared to 100 degrees to establish a state record.
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.
Last Quarter
Rise 3:17AM
Set 1:56PM
THURSDAY AFTERNOON
SFO / No delays
History
Weather Station: San Francisco , CA , US
May Data
Choose another month
Averages
Average High Temperature
13.30 °C
Average Low Temperature
7.80 °C
Average Mean Temp
10.60 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
10.41
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
11
Days With Thunderstorms
*
Days With Fog
*
Days With Snow
0
Days With Lows Below Freezing
15
Days above 90° F (32.2° C)
0
Records
Record High
26.10 °C
Record Low
-1.10 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
272 mm
Record 24-hour Rainfall
81 mm
Record Minimum Monthly Precipitation
1.27 mm
Averages
Average High Temperature
15.60 °C
Average Low Temperature
8.90 °C
Average Mean Temp
12.20 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
8.88
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
1
Days With Fog
1
Days With Snow
0
Days With Lows Below Freezing
7
Days above 90° F (32.2° C)
0
Records
Record High
27.20 °C
Record Low
-0.60 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
256 mm
Record 24-hour Rainfall
53 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
16.10 °C
Average Low Temperature
9.40 °C
Average Mean Temp
12.80 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
7.36
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
*
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
4
Days above 90° F (32.2° C)
0
Records
Record High
28.90 °C
Record Low
1.70 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
* cm
Record 24-hour Snowfall
* cm
Record Monthly Rainfall
228 mm
Record 24-hour Rainfall
63 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
17.20 °C
Average Low Temperature
10.00 °C
Average Mean Temp
13.30 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
3.81
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
6
Days With Thunderstorms
1
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
2
Days above 90° F (32.2° C)
*
Records
Record High
34.40 °C
Record Low
4.40 °C
Record Wind Speed
16.70 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
140 mm
Record 24-hour Rainfall
51 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
17.80 °C
Average Low Temperature
10.60 °C
Average Mean Temp
14.40 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
1.27
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
3
Days With Thunderstorms
0
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
*
Records
Record High
35.60 °C
Record Low
6.70 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
102 mm
Record 24-hour Rainfall
36 mm
Record Minimum Monthly Precipitation
0.00 mm
Averages
Average High Temperature
18.90 °C
Average Low Temperature
11.70 °C
Average Mean Temp
15.60 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
0.51
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
1
Days With Thunderstorms
*
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
*
Records
Record High
38.30 °C
Record Low
8.30 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
36 mm
Record 24-hour Rainfall
33 mm
Record Minimum Monthly Precipitation
0.00 mm
Averages
Average High Temperature
18.90 °C
Average Low Temperature
12.20 °C
Average Mean Temp
15.60 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
*
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
1
Days With Thunderstorms
1
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
*
Records
Record High
39.40 °C
Record Low
8.30 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
5 mm
Record 24-hour Rainfall
3 mm
Record Minimum Monthly Precipitation
0.00 mm
Averages
Average High Temperature
18.90 °C
Average Low Temperature
12.20 °C
Average Mean Temp
16.10 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
*
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
1
Days With Thunderstorms
1
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
*
Records
Record High
35.60 °C
Record Low
8.90 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
13 mm
Record 24-hour Rainfall
13 mm
Record Minimum Monthly Precipitation
0.00 mm
Averages
Average High Temperature
21.10 °C
Average Low Temperature
13.30 °C
Average Mean Temp
17.20 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
0.51
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
1
Days With Thunderstorms
*
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
0
Days above 90° F (32.2° C)
1
Records
Record High
38.30 °C
Record Low
8.90 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
53 mm
Record 24-hour Rainfall
51 mm
Record Minimum Monthly Precipitation
0.00 mm
Averages
Average High Temperature
20.60 °C
Average Low Temperature
12.80 °C
Average Mean Temp
16.70 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
2.79
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
4
Days With Thunderstorms
1
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
*
Days above 90° F (32.2° C)
*
Records
Record High
38.90 °C
Record Low
6.10 °C
Record Wind Speed
16.70 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
140 mm
Record 24-hour Rainfall
58 mm
Record Minimum Monthly Precipitation
* mm
Averages
Average High Temperature
17.80 °C
Average Low Temperature
10.60 °C
Average Mean Temp
14.40 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
6.60
Average Snowfall (US Only)
0.00
Daily Counts
Days With Precipitation
8
Days With Thunderstorms
*
Days With Fog
0
Days With Snow
0
Days With Lows Below Freezing
1
Days above 90° F (32.2° C)
0
Records
Record High
30.00 °C
Record Low
3.90 °C
Record Wind Speed
-183.30 km/h
Record Monthly Snowfall
0.0 cm
Record 24-hour Snowfall
0.00 cm
Record Monthly Rainfall
208 mm
Record 24-hour Rainfall
63 mm
Record Minimum Monthly Precipitation
0.00 mm
Averages
Average High Temperature
13.90 °C
Average Low Temperature
8.30 °C
Average Mean Temp
11.10 °C
Average Dew Point
* °C
Average Windspeed
* km/h
Average Wind Direction
*
Average Morning Relative Humidity
*
Average Afternoon Relative Humidity
*
Typical Sky Cover
*
Average Precipitation (US Only)
9.90
Average Snowfall (US Only)
*
Daily Counts
Days With Precipitation
10
Days With Thunderstorms
0
Days With Fog
0
Days With Snow
*
Days With Lows Below Freezing
11
Days above 90° F (32.2° C)
0
Records
Record High
24.40 °C
Record Low
-2.80 °C
Record Wind Speed
16.70 km/h
Record Monthly Snowfall
2.5 cm
Record 24-hour Snowfall
2.50 cm
Record Monthly Rainfall
292 mm
Record 24-hour Rainfall
79 mm
Record Minimum Monthly Precipitation
0.00 mm
Last Quarter
Rise 3:17AM
Set 1:56PM
THURSDAY AFTERNOON
SFO / No delays
Day
Reason
Upper Soil Moisture
Lower Soil Moisture
Thursday
Fire danger moderate
21%
29%
Friday
Fire danger moderate
21%
29%
Saturday
Fire danger very low
21%
29%
Sunday
Fire danger low
21%
29%
Monday
Fire danger moderate
21%
29%
Tuesday
Fire danger high
21%
29%
Last Quarter
Rise 3:17AM
Set 1:56PM
THURSDAY AFTERNOON
SFO / No delays
Last Quarter
Rise 3:17AM
Set 1:56PM
THURSDAY AFTERNOON
SFO / No delays
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Skiable trails open
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