and then 
to Add to home screen AUGUST 10TH, 1856-A hurricane's 5 ft. storm tide drowns 140 vacationers at Isle Derniere (Last Island) off the Louisiana coast. In 1943, on the same day, lightning kills six soldiers on a drill field at Fort Belvoir, VA.
Rise 6:21AM
Set 8:07PM
Reporting Station : San Francisco International Airport, CA
There are
0 Weather Alerts
for your area.
0 Weather Alerts
for your area.
61°F
Scattered clouds. Cool.
- 78%
- 17 mphNW
-
78%
Humidity -
54°F
Dew Point -
61°F
Comfort Level -
10 mi
Visibility -
29.96 in
Barometric Pressure - Air Quality
Waxing crescent
Rise12:14PM
Set11:03PM
SATURDAY MORNING
SFO / No delays
Previously
| AUGUST 10TH, 1856 |
A hurricane's 5 ft. storm tide drowns 140 vacationers at Isle Derniere (Last Island) off the Louisiana coast. In 1943, on the same day, lightning kills six soldiers on a drill field at Fort Belvoir, VA. |
| AUGUST 10TH, 1980 |
Hurricane Allen came ashore above Brownsville TX dropping fifteen inches of rain near San Antonio, and up to 20 inches in the Lower Rio Grande Valley. Tidal flooding occurred along the South Texas coast. Hurricane Allen packed winds to 150 mph, and also spawned twenty-nine tornadoes. Total damage from the storm was estimated at 750 million dollars. |
| AUGUST 9TH, 1878 |
The second most deadly tornado in New England history struck Wallingford CT killing 34 persons, injuring 100 others, and completely destroying thirty homes. The tornado started as a waterspout over a dam on the Quinnipiac River. It was 400 to 600 feet wide, and had a short path length of two miles. |
| AUGUST 9TH, 1969 |
A tornado hit Cincinnati OH killing four persons and causing fifteen million dollars property damage. The tornado moved in a southeasterly direction at 40 to 50 mph. |
| AUGUST 8TH, 1882 |
An August snowstorm was reported by a ship on Lake Michigan. A thick cloud reportedly burst on the decks covering them with snow and slush six inches deep. Snow showers were observed at shore points that day. |
| AUGUST 8TH, 1983 |
The temperature at Big Horn Basin WY reached 115 degrees to establish a state record. |
| AUGUST 7TH, 1904 |
A flash flood near Pueblo CO washed a train from the tracks killing 89 passengers. A bridge, weakened by the floodwaters sweeping through the valley below, gave way under the weight of the train dashing all but the sleeping cars into the torrent drowning the occupants. Rail service was frequently interrupted in the Rocky Mountain Region and southwestern U.S. that summer due to numerous heavy downpours which washed out the railroad beds delaying trains as much as five days. |
| AUGUST 7TH, 1984 |
El Paso TX normally receives 1.21 inches of rain in August. During a storm which left downtown El Paso under five feet of water, they recieved over 5 inches in forty-five minutes. |
| AUGUST 6TH, 1959 |
A bucket survey showed that thunderstorms dropped 16.70 inches of rain on parts of Decatur County IA. The total was accepted as Iowa's 24 hour rainfall record. |
| AUGUST 6TH, 1918 |
Unusually hot weather began to overspread the Atlantic Coast States, from the Carolinas to southern New England. The temp- erature soared to an all-time record high of 106 degrees at Washington D.C., and Cumberland and Keedysville hit 109 degrees to establish a state record for Maryland. Temperatures were above normal east of the Rockies that month, with readings much above normal in the Lower Missouri Valley. Omaha NE reached 110 degrees. |
| AUGUST 5TH, 1843 |
A spectacular cloudburst near Philadelphia turned the small creeks and streams entering the Delaware River into raging torrents. As much as sixteen inches of rain fell in just three hours. Flooding destroyed thirty-two county bridges, and caused nineteen deaths. It is believed that several small tornadoes accompanied the torrential rains, one of which upset and sank more than thirty barges on the Schuylkill River. |
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 6:21AM
Set 8:07PM
Waxing crescent
Rise12:14PM
Set11:03PM
SATURDAY MORNING
SFO / No delays
| History | |||
| Weather Station: San Francisco , CA , US | |||
| August Data | Choose another month |
| Averages | |
|
Average High Temperature
55.94 °F
|
Average Low Temperature
46.04 °F
|
|
Average Mean Temp
51.08 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
4.10
|
|
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
78.98 °F
|
Record Low
30.02 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
* "
|
Record 24-hour Snowfall
* "
|
Record Monthly Rainfall
10.72 "
|
Record 24-hour Rainfall
3.19 "
|
Record Minimum Monthly Precipitation
0.50 "
|
| Averages | |
|
Average High Temperature
60.08 °F
|
Average Low Temperature
48.02 °F
|
|
Average Mean Temp
53.96 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
3.50
|
|
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
80.96 °F
|
Record Low
30.92 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
* "
|
Record 24-hour Snowfall
* "
|
Record Monthly Rainfall
10.09 "
|
Record 24-hour Rainfall
2.09 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
60.98 °F
|
Average Low Temperature
48.92 °F
|
|
Average Mean Temp
55.04 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
2.90
|
|
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
84.02 °F
|
Record Low
35.06 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
* "
|
Record 24-hour Snowfall
* "
|
Record Monthly Rainfall
8.98 "
|
Record 24-hour Rainfall
2.48 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
62.96 °F
|
Average Low Temperature
50.00 °F
|
|
Average Mean Temp
55.94 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
1.50
|
|
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
93.92 °F
|
Record Low
39.92 °F
|
|
Record Wind Speed
10.35 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
5.52 "
|
Record 24-hour Rainfall
2.01 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
64.04 °F
|
Average Low Temperature
51.08 °F
|
|
Average Mean Temp
57.92 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
0.50
|
|
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
96.08 °F
|
Record Low
44.06 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
4.02 "
|
Record 24-hour Rainfall
1.42 "
|
Record Minimum Monthly Precipitation
0.00 "
|
| Averages | |
|
Average High Temperature
66.02 °F
|
Average Low Temperature
53.06 °F
|
|
Average Mean Temp
60.08 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
0.20
|
|
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
100.94 °F
|
Record Low
46.94 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
1.42 "
|
Record 24-hour Rainfall
1.30 "
|
Record Minimum Monthly Precipitation
0.00 "
|
| Averages | |
|
Average High Temperature
66.02 °F
|
Average Low Temperature
53.96 °F
|
|
Average Mean Temp
60.08 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
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
102.92 °F
|
Record Low
46.94 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
0.20 "
|
Record 24-hour Rainfall
0.12 "
|
Record Minimum Monthly Precipitation
0.00 "
|
| Averages | |
|
Average High Temperature
66.02 °F
|
Average Low Temperature
53.96 °F
|
|
Average Mean Temp
60.98 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
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
96.08 °F
|
Record Low
48.02 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
0.51 "
|
Record 24-hour Rainfall
0.51 "
|
Record Minimum Monthly Precipitation
0.00 "
|
| Averages | |
|
Average High Temperature
69.98 °F
|
Average Low Temperature
55.94 °F
|
|
Average Mean Temp
62.96 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
0.20
|
|
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
100.94 °F
|
Record Low
48.02 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
2.09 "
|
Record 24-hour Rainfall
2.01 "
|
Record Minimum Monthly Precipitation
0.00 "
|
| Averages | |
|
Average High Temperature
69.08 °F
|
Average Low Temperature
55.04 °F
|
|
Average Mean Temp
62.06 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
1.10
|
|
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
102.02 °F
|
Record Low
42.98 °F
|
|
Record Wind Speed
10.35 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
5.52 "
|
Record 24-hour Rainfall
2.29 "
|
Record Minimum Monthly Precipitation
* "
|
| Averages | |
|
Average High Temperature
64.04 °F
|
Average Low Temperature
51.08 °F
|
|
Average Mean Temp
57.92 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
2.60
|
|
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
86.00 °F
|
Record Low
39.02 °F
|
|
Record Wind Speed
-113.65 mph
|
Record Monthly Snowfall
0.0 "
|
Record 24-hour Snowfall
0.00 "
|
Record Monthly Rainfall
8.20 "
|
Record 24-hour Rainfall
2.48 "
|
Record Minimum Monthly Precipitation
0.00 "
|
| Averages | |
|
Average High Temperature
57.02 °F
|
Average Low Temperature
46.94 °F
|
|
Average Mean Temp
51.98 °F
|
Average Dew Point
* °F
|
|
Average Windspeed
* mph
|
Average Wind Direction
*
|
|
Average Morning Relative Humidity
*
|
Average Afternoon Relative Humidity
*
|
|
Typical Sky Cover
*
|
Average Precipitation (US Only)
3.90
|
|
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
75.92 °F
|
Record Low
26.96 °F
|
|
Record Wind Speed
10.35 mph
|
Record Monthly Snowfall
2.5 "
|
Record 24-hour Snowfall
0.98 "
|
Record Monthly Rainfall
11.50 "
|
Record 24-hour Rainfall
3.11 "
|
Record Minimum Monthly Precipitation
0.00 "
|
Rise 6:21AM
Set 8:07PM
Waxing crescent
Rise12:14PM
Set11:03PM
SATURDAY MORNING
SFO / No delays
| Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
| Saturday |  |
Fire danger low | 21% | 23% |
| Sunday | |
Fire danger low | 21% | 23% |
| Monday |  |
Fire danger moderate | 21% | 23% |
| Tuesday | |
Fire danger moderate | 21% | 23% |
| Wednesday | |
Fire danger moderate | 21% | 23% |
| Thursday | |
Fire danger moderate | 21% | 23% |
Rise 6:21AM
Set 8:07PM
Waxing crescent
Rise12:14PM
Set11:03PM
SATURDAY MORNING
SFO / No delays
Rise 6:21AM
Set 8:07PM
Waxing crescent
Rise12:14PM
Set11:03PM
SATURDAY MORNING
SFO / No delays
Snow conditions provided by SnoCountry Mountain Reports™