Weather History for San Francisco, CA

Sunday, February 17, 2013 — View Current Weather Conditions

Sunday, February 17, 2013

	Actual	Average	Record
Temperature
Mean Temperature	54 °F	53 °F
Max Temperature	59 °F	60 °F	73 °F (2007)
Min Temperature	48 °F	47 °F	35 °F (1956)
Degree Days
Heating Degree Days	11	12
Month to date heating degree days	230	214
Since 1 July heating degree days	1725	1681
Cooling Degree Days	0	0
Month to date cooling degree days	0	0
Year to date cooling degree days	0	0
Growing Degree Days	4 (Base 50)
Moisture
Dew Point	43 °F
Average Humidity	72
Maximum Humidity	86
Minimum Humidity	57
Precipitation
Precipitation	0.00 in	0.15 in	1.83 in (1986)
Month to date precipitation	0.25	2.50
Year to date precipitation	0.45	6.69
Since 1 July precipitation	11.45	14.26
Sea Level Pressure
Sea Level Pressure	30.03 in
Wind
Wind Speed	11 mph (West)
Max Wind Speed	22 mph
Max Gust Speed	24 mph
Visibility	10 miles
Events

T = Trace of Precipitation, MM = Missing Value

Source: NWS Daily Summary

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Astronomy

Feb. 17, 2013	Rise	Set
Actual Time	6:56 AM PST	5:51 PM PST
Civil Twilight	6:29 AM PST	6:18 PM PST
Nautical Twilight	5:58 AM PST	6:48 PM PST
Astronomical Twilight	5:28 AM PST	7:18 PM PST
Moon	11:02 AM PST (2/17)	12:43 AM PST (2/17)
Length Of Visible Light	11h 48m
Length of Day	10h 55m

Waxing Crescent, 50% of the Moon is Illuminated
Feb 17 Waxing Crescent	Feb 17 First Quarter	Feb 25 Full	Mar 4 Last Quarter	Mar 11 New

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Hourly Weather History & Observations

Time (PST)	Temp.	Dew Point	Humidity	Pressure	Visibility	Wind Dir	Wind Speed	Gust Speed	Precip	Conditions
12:56 AM	48.9 °F	45.0 °F	86%	30.08 in	10.0 mi	West	12.7 mph	-	N/A	Mostly Cloudy
1:31 AM	48.2 °F	44.6 °F	87%	30.07 in	10.0 mi	West	5.8 mph	-	N/A	Partly Cloudy
1:56 AM	48.9 °F	44.1 °F	83%	30.06 in	10.0 mi	West	9.2 mph	-	N/A	Partly Cloudy
2:56 AM	48.9 °F	45.0 °F	86%	30.05 in	10.0 mi	West	8.1 mph	-	N/A	Partly Cloudy
3:56 AM	48.9 °F	44.1 °F	83%	30.04 in	10.0 mi	West	10.4 mph	-	N/A	Partly Cloudy
4:56 AM	48.9 °F	43.0 °F	80%	30.04 in	10.0 mi	West	10.4 mph	-	N/A	Partly Cloudy
5:56 AM	48.9 °F	43.0 °F	80%	30.04 in	10.0 mi	West	12.7 mph	-	N/A	Scattered Clouds
6:56 AM	48.0 °F	42.1 °F	80%	30.05 in	10.0 mi	West	11.5 mph	-	N/A	Partly Cloudy
7:56 AM	48.9 °F	42.1 °F	77%	30.06 in	10.0 mi	West	9.2 mph	-	N/A	Partly Cloudy
8:56 AM	51.1 °F	42.1 °F	71%	30.06 in	10.0 mi	Calm	Calm	-	N/A	Partly Cloudy
9:56 AM	53.1 °F	43.0 °F	69%	30.06 in	10.0 mi	ENE	4.6 mph	-	N/A	Partly Cloudy
10:56 AM	53.1 °F	46.0 °F	77%	30.06 in	10.0 mi	East	6.9 mph	-	N/A	Clear
11:56 AM	54.0 °F	45.0 °F	72%	30.06 in	10.0 mi	ENE	4.6 mph	-	N/A	Clear
12:56 PM	55.9 °F	46.0 °F	69%	30.03 in	10.0 mi	ENE	3.5 mph	-	N/A	Clear
1:56 PM	57.9 °F	42.1 °F	56%	30.01 in	10.0 mi	WNW	15.0 mph	-	N/A	Partly Cloudy
2:56 PM	57.0 °F	42.1 °F	57%	30.01 in	10.0 mi	WNW	17.3 mph	-	N/A	Clear
3:56 PM	55.0 °F	41.0 °F	59%	30.00 in	10.0 mi	West	18.4 mph	-	N/A	Clear
4:56 PM	53.1 °F	42.1 °F	66%	29.99 in	10.0 mi	WNW	17.3 mph	-	N/A	Partly Cloudy
5:56 PM	51.1 °F	43.0 °F	74%	29.99 in	10.0 mi	West	17.3 mph	-	N/A	Partly Cloudy
6:56 PM	50.0 °F	42.1 °F	74%	30.00 in	10.0 mi	West	13.8 mph	-	N/A	Clear
7:56 PM	50.0 °F	43.0 °F	77%	30.00 in	10.0 mi	West	17.3 mph	-	N/A	Clear
8:56 PM	48.9 °F	43.0 °F	80%	30.01 in	10.0 mi	West	15.0 mph	-	N/A	Clear
9:56 PM	48.9 °F	43.0 °F	80%	30.02 in	10.0 mi	West	12.7 mph	-	N/A	Partly Cloudy
10:56 PM	48.0 °F	43.0 °F	83%	30.03 in	10.0 mi	West	9.2 mph	-	N/A	Partly Cloudy
11:56 PM	48.9 °F	43.0 °F	80%	30.03 in	10.0 mi	West	10.4 mph	-	N/A	Partly Cloudy
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