Reporting Station : San Francisco International Airport, CA
86%
Humidity
10°C
Dew Point
10°C
Comfort Level
16 km
Visibility
1014.40 mb
Barometric Pressure
Air Quality
Waning gibbous
Rise 11:08PM
Set 7:12AM
SATURDAY NIGHT
SFO / No delays
MAY 25TH, 1955-Two tornadoes struck the town of Blackwell OK within a few minutes time during the late evening. The tornadoes killed 18 persons and injured more than 500 others. Early the next morning a tornado virtually obliterated the small community of Udall KS killing 80 persons and injuring 270 persons. More than half the persons in the community were killed or injured by the tornado.
MAY 25TH, 1955
Two tornadoes struck the town of Blackwell OK within a few minutes time during the late evening. The tornadoes killed 18 persons and injured more than 500 others. Early the next morning a tornado virtually obliterated the small community of Udall KS killing 80 persons and injuring 270 persons. More than half the persons in the community were killed or injured by the tornado.
MAY 25TH, 1987
Thunderstorms spawned fifteen tornadoes in West Texas. One thunderstorm spawned a powerful tornado near Gruver TX, along with golf ball size hail and 75 mph winds. A man on a boat on Lake Bistineau in northwest Louisiana was struck and killed by lightning, while the other three persons in the boat were unharmed. The man reportedly stood up in the boat and asked to be struck by lightning.
MAY 24TH, 1940
Hail fell near Ada OK to a depth of six to eight inches, and rainfall runoff left drifts of hail up to five feet high.
MAY 24TH, 1894
Six inches of snow blanketed Kentucky. Just four days earlier as much as ten inches of snow had fallen across Kentucky, Tennessee and Virginia. Six days earlier a violent storm had wrecked nine ships on Lake Michigan.
MAY 23RD, 1882
Eastern Iowa receives 6 in (15 cm) of snow during late season snowstorm.
MAY 23RD, 1989
Severe thunderstorms developing along a cold front resulted in 98 reports of large hail and damaging winds in the Northern Plains and Upper Mississippi Valley. Golf ball size hail caused a million dollars damage around Buffalo City WI, baseball size hail was reported at Northfield MN and Randolph MN, and thunderstorm winds gusted to 95 mph at Dunkerton IA.
MAY 22ND, 1987
A powerful tornado virtually wiped the small southwest Texas community of Saragosa off the map. The twister destroyed eighty- five percent of the structures in the town killing thirty persons and injuring 121 others in the town of population 183. The tornado hurled trucks and autos through adobe and wood- frame homes, with some vehicles blown 500 feet.
MAY 22ND, 1832
Kennebec River discharges 140,000 cu. ft. per second during a flood at Waterville, ME.
MAY 21ST, 1860
A swarm of tornadoes occurred in the Ohio Valley. Tornadoes struck the cities of Louisville KY, Cincinnati OH, Chillicothe OH and Marietta OH causing a million dollars damage.
MAY 21ST, 1896
The mercury soared to 124 degrees at Salton CA to establish a U.S. record for May.
MAY 20TH, 1916
On the same day on this year and again in 1917 and 1918, tornadoes strike Codell, KS.
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.
Waning gibbous
Rise 11:08PM
Set 7:12AM
SATURDAY NIGHT
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
Waning gibbous
Rise 11:08PM
Set 7:12AM
SATURDAY NIGHT
SFO / No delays
Day
Reason
Upper Soil Moisture
Lower Soil Moisture
Saturday
Fire danger low
22%
28%
Sunday
Fire danger low
22%
28%
Monday
Fire danger moderate
22%
28%
Tuesday
Fire danger moderate
22%
28%
Wednesday
Fire danger moderate
22%
28%
Thursday
Fire danger high
22%
28%
Waning gibbous
Rise 11:08PM
Set 7:12AM
SATURDAY NIGHT
SFO / No delays
Waning gibbous
Rise 11:08PM
Set 7:12AM
SATURDAY NIGHT
SFO / No delays
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Skiable trails open
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