MAY 20TH, 1916-On the same day on this year and again in 1917 and 1918, tornadoes strike Codell, KS.
Rise 5:55AM
Set 8:17PM
Reporting Station : San Francisco International Airport, CA
Passing clouds. Mild.
Rise 5:55AM
Set 8:17PM
Waxing gibbous
Rise5:50PM
Set4:11AM
MONDAY AFTERNOON
SFO / No delays
MAY 20TH, 1916-On the same day on this year and again in 1917 and 1918, tornadoes strike Codell, KS.
MAY 20TH, 1916 |
On the same day on this year and again in 1917 and 1918, tornadoes strike Codell, KS. |
MAY 20TH, 1957 |
A tornado touched down to the southwest of Kansas City and traveled a distance of seventy-one miles cutting a swath of near total destruction through the southeastern suburbs of Ruskin Heights and Hickman Mills. The tornado claimed the lives of forty-five persons, and left hundreds homeless. It was the worst weather disaster of record for Kansas City. About all that remained of one house was a small table and a fish bowl atop, with the fish still swimming about inside the bowl, rather unconcerned. |
MAY 19TH, 1955 |
Lake Maloya NM received 11.28 inches of rain in 24 hours to establish a state record. |
MAY 19TH, 1780 |
The infamous "dark day" in New England tradition. At noon it was nearly as dark as night. Chickens went to roost, and many persons were fearful of divine wrath. The phenomena was caused by forest fires to the west of New England. |
MAY 18TH, 1980 |
Mount Saint Helens (in Washington State) erupted spewing ash and smoke sixty-three thousand feet into the air. Heavy ash covered the ground to the immediate northwest, and small particles were carried to the Atlantic coast. |
MAY 18TH, 1825 |
A tornado (said to have crossed all of the state of Ohio) smashed into the log cabin settlement of Burlington, northeast of Columbus. |
MAY 17TH, 1883 |
A three day flood in the Black Hills of western South Dakota resulted in a million dollars damage at Rapid City. |
MAY 17TH, 1979 |
A reading of 12 degrees at Mauna Kea Observatory established an all-time record low for the state of Hawaii. |
MAY 16TH, 1952 |
High winds in the Wasatch Canyon of Utah struck Ogden and Brigham City. Winds at Hill Air Force Base gusted to 92 mph. |
MAY 16TH, 1874 |
The Mill Creek disaster occurred west of Northhampton MA. Dam slippage resulted in a flash flood which claimed 143 lives, and caused a million dollars property damage. |
MAY 15TH, 1834 |
The Northern Atlantic Coast States were in the midst of their greatest May snowstorm of record. The hills around Newbury VT were covered with two to three feet of snow. |
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 5:55AM
Set 8:17PM
Waxing gibbous
Rise5:50PM
Set4:11AM
MONDAY AFTERNOON
SFO / No delays
History | |||
Weather Station: San Francisco , CA , US | |||
May 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 5:55AM
Set 8:17PM
Waxing gibbous
Rise5:50PM
Set4:11AM
MONDAY AFTERNOON
SFO / No delays
Day | Reason | Upper Soil Moisture | Lower Soil Moisture | |
Tuesday | ![]() |
Fire danger low | 22% | 29% |
Wednesday | ![]() |
Fire danger moderate | 22% | 29% |
Thursday | ![]() |
Fire danger moderate | 22% | 29% |
Friday | ![]() |
Fire danger moderate | 22% | 29% |
Saturday | ![]() |
Fire danger moderate | 22% | 29% |
Sunday | ![]() |
Fire danger moderate | 22% | 29% |
Rise 5:55AM
Set 8:17PM
Waxing gibbous
Rise5:50PM
Set4:11AM
MONDAY AFTERNOON
SFO / No delays
Rise 5:55AM
Set 8:17PM
Waxing gibbous
Rise5:50PM
Set4:11AM
MONDAY AFTERNOON
SFO / No delays