Weather History for San Francisco, CA

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Week of December 19, 2004 through December 25, 2004

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 57 °F 53 °F
Mean Temperature 54 °F 51 °F 48 °F
Min Temperature 48 °F 45 °F 42 °F
Degree Days  
Heating Degree Days (base 65) 16 14 11 95
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 2 0 11
Dew Point  
Dew Point 52 °F 45 °F 33 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 23 mph 4 mph 0 mph
Gust Wind - - -
Sea Level Pressure  
Sea Level Pressure 30.36 in 30.17 in 29.98 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Dec. 25, 2004 Rise Set
Actual Time 7:22 AM PST 4:57 PM PST
Civil Twilight 6:53 AM PST 5:26 PM PST
Nautical Twilight 6:20 AM PST 5:59 PM PST
Astronomical Twilight 5:48 AM PST 6:31 PM PST
Moon 4:05 PM PST (12/25) 6:54 AM PST (12/25)
Length of Visible Light 10h 32m
Length of Day
9h 34m
Waxing Gibbous, 99% of the Moon is Illuminated
Dec 25
Waxing Gibbous
Dec 26
Full
Jan 3
Last Quarter
Jan 10
New
Jan 16
First Quarter

Daily Weather History & Observations

2004 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  
19 57 52 46 52 48 43 100 87 70 30.31 30.24 30.15 10 8 4 10 5 - 0.00  
20 53 50 46 50 48 46 100 98 88 30.15 30.07 29.98 7 3 0 9 3 - 0.00 Fog
21 61 52 44 50 45 36 100 81 39 30.16 30.09 30.01 10 6 0 8 3 - 0.00 Fog
22 57 52 48 49 42 37 83 66 53 30.21 30.15 30.12 10 10 10 17 7 - 0.00  
23 62 54 46 47 39 33 89 58 34 30.28 30.22 30.16 10 10 10 23 5 - 0.00  
24 57 51 45 51 44 33 100 78 63 30.36 30.29 30.25 10 9 5 8 3 - 0.00  
25 55 48 42 49 46 42 100 92 80 30.23 30.13 29.99 10 6 3 9 3 - 0.00