Weather History for KVSF - September, 2012

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Week of September 9, 2012 through September 15, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 84 °F 76 °F 66 °F
Mean Temperature 68 °F 62 °F 57 °F
Min Temperature 54 °F 47 °F 41 °F
Degree Days  
Heating Degree Days (base 65) 8 4 0 27
Cooling Degree Days (base 65) 3 1 0 5
Growing Degree Days (base 50) 17 12 7 83
Dew Point  
Dew Point 61 °F 47 °F 35 °F
Precipitation  
Precipitation 0.02 in 0.00 in 0.00 in 0.02 in
Snowdepth - - - -
Wind  
Wind 22 mph 3 mph 0 mph
Gust Wind 28 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.38 in 30.14 in 29.73 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Sep. 14, 2012 Rise Set
Actual Time 6:28 AM EDT 7:01 PM EDT
Civil Twilight 6:00 AM EDT 7:29 PM EDT
Nautical Twilight 5:26 AM EDT 8:03 PM EDT
Astronomical Twilight 4:51 AM EDT 8:38 PM EDT
Moon 4:48 AM EDT (9/14) 5:56 PM EDT (9/14)
Length of Visible Light 13h 29m
Length of Day
12h 32m
Waning Crescent, 3% of the Moon is Illuminated
Sep 14
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
9 74 64 54 58 51 45 93 66 38 29.91 29.83 29.73 10 10 9 15 4 25 0.00  
10 66 57 48 49 43 37 93 64 34 30.11 29.99 29.92 10 8 0 16 6 22 0.00 Fog
11 73 57 41 45 41 35 89 57 25 30.29 30.21 30.12 10 10 10 13 2 17 0.00  
12 80 61 41 54 43 39 96 63 30 30.38 30.34 30.29 10 6 0 10 2 14 0.00 Fog
13 84 67 50 57 51 46 100 70 40 30.38 30.33 30.25 10 5 0 13 2 17 0.00 Fog
14 84 68 51 61 54 50 96 67 37 30.28 30.21 30.05 10 6 0 14 2 21 0.00 Fog
15 71 59 47 58 47 40 90 62 33 30.10 30.06 30.01 10 10 10 22 5 28 0.02