History for San Francisco, CA

Week of December 30, 2012 through January 5, 2013 — View Current Conditions
Week of December 30, 2012 through January 5, 2013
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Daily Weekly Monthly Custom
  Max Avg Min Sum
Temperature
Max Temperature 55 °F 54 °F 53 °F
Mean Temperature 48 °F 47 °F 45 °F
Min Temperature 42 °F 39 °F 37 °F
Degree Days
Heating Degree Days (base 65) 20 18 17 128
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point
Dew Point 48 °F 38 °F 25 °F
Precipitation
Precipitation 0.06 in 0.01 in 0.00 in 0.06 in
Snowdepth - - - -
Wind
Wind 22 mph 4 mph 0 mph
Gust Wind 24 mph - -
Sea Level Pressure
Sea Level Pressure 30.30 in 30.20 in 30.06 in
Weekly Graph
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Date:
Astronomy
May. 24, 2013 Rise Set
Actual Time 7:24 AM PST 5:01 PM PST
Civil Twilight 6:55 AM PST 5:30 PM PST
Nautical Twilight 6:22 AM PST 6:03 PM PST
Astronomical Twilight 5:50 AM PST 6:35 PM PST
Moon 8:33 PM PST (12/31) 9:12 AM PST (12/31)
Length Of Visible Light 10h 35m
Length of Day
9h 36m
Waning Gibbous, 89% of the Moon is Illuminated
Dec 31
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full
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Daily Observations
2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
30 55 48 40 42 38 32 89 70 50 30.18 30.10 30.06 10 10 10 15 4 17 0.00  
31 53 45 37 39 33 25 76 56 35 30.30 30.26 30.20 10 10 10 9 3 21 0.00  
2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 53 48 42 40 37 34 83 69 54 30.29 30.25 30.22 10 10 9 20 8 22 T  
2 55 46 37 44 36 31 85 68 50 30.25 30.20 30.15 10 10 10 8 3 22 0.00  
3 53 45 37 42 37 33 85 73 61 30.27 30.22 30.18 10 10 9 8 1 9 0.00  
4 55 48 40 42 38 35 82 68 54 30.30 30.24 30.19 10 10 8 8 3 9 0.00  
5 53 47 41 48 44 36 93 85 76 30.27 30.16 30.07 10 8 3 22 3 24 0.06 Rain
Comma Delimited File