Weather History for San Francisco, CA

Change the Weather History Date:

Monday, February 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 49 °F 53 °F  
Max Temperature 52 °F 60 °F 71 °F (1977)
Min Temperature 45 °F 47 °F 33 °F (1956)
Degree Days  
Heating Degree Days 16 12  
Month to date heating degree days 246 226  
Since 1 July heating degree days 1741 1693  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 39 °F    
Average Humidity 71    
Maximum Humidity 86    
Minimum Humidity 56    
Precipitation  
Precipitation T in 0.14 in 1.75 in (1958)
Month to date precipitation 0.25 2.64  
Year to date precipitation 0.45 6.83  
Since 1 July precipitation 11.45 14.40  
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 12 mph (West)    
Max Wind Speed 18 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Feb. 18, 2013 Rise Set
Actual Time 6:54 AM PST 5:52 PM PST
Civil Twilight 6:28 AM PST 6:19 PM PST
Nautical Twilight 5:57 AM PST 6:49 PM PST
Astronomical Twilight 5:27 AM PST 7:19 PM PST
Moon 11:45 AM PST (2/18) 1:36 AM PST (2/18)
Length of Visible Light 11h 50m
Length of Day
10h 57m
First Quarter, 59% of the Moon is Illuminated
Feb 18
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 48.0 °F - 42.1 °F 80% 30.04 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
1:56 AM 46.9 °F - 42.1 °F 83% 30.04 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
2:04 AM 46.4 °F 41.9 °F 42.8 °F 87% 30.04 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
2:56 AM 46.9 °F - 42.1 °F 83% 30.02 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
3:56 AM 46.0 °F 43.1 °F 41.0 °F 83% 30.01 in 10.0 mi SW 5.8 mph - N/A   Scattered Clouds
4:56 AM 46.9 °F - 39.9 °F 77% 30.02 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
5:56 AM 46.9 °F - 39.9 °F 77% 30.02 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
6:28 AM 48.2 °F - 39.2 °F 71% 30.02 in 10.0 mi West 10.4 mph - N/A   Mostly Cloudy
6:56 AM 46.9 °F - 39.9 °F 77% 30.03 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
7:27 AM 48.2 °F - 39.2 °F 71% 30.03 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
7:56 AM 48.0 °F - 39.0 °F 71% 30.04 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
8:35 AM 48.2 °F - 37.4 °F 66% 30.05 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
8:45 AM 50.0 °F - 39.2 °F 66% 30.05 in 10.0 mi WSW 9.2 mph - N/A   Mostly Cloudy
8:56 AM 48.9 °F - 39.0 °F 69% 30.06 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
9:56 AM 48.9 °F - 37.9 °F 66% 30.06 in 10.0 mi WSW 12.7 mph - N/A   Mostly Cloudy
10:56 AM 50.0 °F - 39.0 °F 66% 30.06 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
11:56 AM 51.1 °F - 39.0 °F 63% 30.06 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
12:56 PM 51.1 °F - 37.0 °F 59% 30.03 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
1:56 PM 51.1 °F - 37.0 °F 59% 30.01 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
2:56 PM 50.0 °F - 37.0 °F 61% 30.01 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
3:56 PM 50.0 °F - 37.9 °F 63% 30.01 in 10.0 mi West 11.5 mph - N/A   Overcast
4:35 PM 50.0 °F - 39.2 °F 66% 30.01 in 10.0 mi West 12.7 mph 19.6 mph N/A   Overcast
4:56 PM 50.0 °F - 39.9 °F 68% 30.01 in 10.0 mi WSW 16.1 mph 21.9 mph 0.00 in Rain Light Rain
5:56 PM 50.0 °F - 37.0 °F 61% 30.00 in 10.0 mi WSW 15.0 mph - 0.00 in   Overcast
6:56 PM 48.9 °F - 37.0 °F 64% 30.00 in 10.0 mi West 11.5 mph - N/A   Overcast
7:56 PM 48.9 °F - 39.0 °F 69% 30.00 in 10.0 mi West 15.0 mph - N/A   Overcast
8:56 PM 48.0 °F - 37.0 °F 66% 30.00 in 10.0 mi West 12.7 mph - 0.00 in   Mostly Cloudy
9:56 PM 48.9 °F - 34.0 °F 56% 30.01 in 10.0 mi West 13.8 mph - 0.00 in   Mostly Cloudy
10:56 PM 48.2 °F - 35.6 °F 62% 30.00 in 10.0 mi West 12.7 mph - N/A   Mostly Cloudy
11:56 PM 48.9 °F - 35.1 °F 59% 29.99 in 10.0 mi West 10.4 mph - N/A   Overcast