Reporting Station : San Francisco International Airport, CA
2 Weather Alerts
for your area.
Passing clouds. Cool.
Rise 6:02AM
Set 8:28PM
Waxing gibbous
Rise6:43PM
Set2:50AM
THURSDAY NIGHT
SFO / No delays
JULY 18TH, 1889-A cloudburst in West Virginia along the small creeks in Wirt County, Jackson County and Wood County claimed twenty lives. Rockport WV reported nineteen inches of rain in two hours and ten minutes that Thursday evening. Tygart Creek rose 22 feet in one hour, and villages were swept away on Tygart, Slate, Tucker, and Sandy Creeks.
| JULY 18TH, 1889 |
A cloudburst in West Virginia along the small creeks in Wirt County, Jackson County and Wood County claimed twenty lives. Rockport WV reported nineteen inches of rain in two hours and ten minutes that Thursday evening. Tygart Creek rose 22 feet in one hour, and villages were swept away on Tygart, Slate, Tucker, and Sandy Creeks. |
| JULY 18TH, 1942 |
A record deluge occurred at Smethport in northern Pennsylvania, with 30.7 inches in just six hours. The downpours and resultant flooding in Pennsylvania were devastating. |
| JULY 17TH, 1974 |
After striking a tree and passing through a chain, lightning kills Norma Jean, a 6500 lb. performing elephant tethered to a tree in the town square at Oquawka, IL where a circus had pitched a big top. |
| JULY 17TH, 1941 |
A prolonged heat wave over Washington State finally came to an end. Lightning from untimely thunderstorms was responsible for 598 forest fires. |
| JULY 16TH, 1946 |
The temperature at Medford OR soared to an all-time high of 115 degrees to begin a two week heat wave. During that Oregon heat wave the mercury hit 100 degrees at Sexton Summit for the only time in forty years of records. |
| JULY 16TH, 1975 |
An early afternoon thunderstorm raked the east side of Tucson AZ with gale force winds, heavy rain, and numerous lightning strikes. A thirteen year old boy was swept through a forty foot long culvert by raging waters before being rescued. |
| JULY 15TH, 1980 |
The suburbs of Minneapolis are hammered by powerful thunderstorms, hailstorms and small tornadoes, leaving 100,000 without power. Downward rushing winds cause an estimated $43 million in damages in Dakota County. |
| JULY 15TH, 1916 |
A dying South Atlantic Coast storm produced torrential rains in the southern Appalachian Mountains. Altapass NC was drenched with more than 22 inches of rain, a 24 hour rainfall record for the state. Flooding resulted in considerable damage, particularly to railroads. |
| JULY 14TH, 1936 |
Extreme heat prevailed across the central U.S. as severe drought raged from Texas to the Dakotas. Record high temperatures were established in sixteen states that summer, including readings as high as 120 degrees in the Great Plains Region. On this particular date, afternoon highs for 113 stations across the state of Iowa averaged 108.7 degrees. |
| JULY 14TH, 1987 |
Severe thunderstorms in Iowa produced eight inches of golf ball size hail near Grafton IA, completely stripping corn stalks in the area. Hail caused more than a million dollars damage to crops in Worth County and Mitchell County, and another million dollars damage in Ada County and Crawford County. |
| JULY 13TH, 1980 |
Afternoon highs of 108 degrees at Memphis TN, 108 degrees at Macon GA, and 105 degrees at Atlanta GA, established all- time records for those three cities. The high of 110 degrees at Newington GA was just two degrees shy of the state record. |
| 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 6:02AM
Set 8:28PM
Waxing gibbous
Rise6:43PM
Set2:50AM
THURSDAY NIGHT
SFO / No delays
| History | |||
| Weather Station: San Francisco , CA , US | |||
| July 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
|
Rise 6:02AM
Set 8:28PM
Waxing gibbous
Rise6:43PM
Set2:50AM
THURSDAY NIGHT
SFO / No delays
| Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
| Thursday |  |
Fire danger low | 21% | 24% |
| Friday |  |
Fire danger high | 21% | 24% |
| Saturday | |
Fire danger high | 21% | 24% |
| Sunday | |
Fire danger high | 21% | 24% |
| Monday | |
Fire danger high | 21% | 24% |
| Tuesday |  |
Fire danger moderate | 21% | 24% |
Rise 6:02AM
Set 8:28PM
Waxing gibbous
Rise6:43PM
Set2:50AM
THURSDAY NIGHT
SFO / No delays
Rise 6:02AM
Set 8:28PM
Waxing gibbous
Rise6:43PM
Set2:50AM
THURSDAY NIGHT
SFO / No delays
and then 
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