Weather History for Petaluma, CA

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Week of October 21, 2012 through October 27, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 80 °F 68 °F 60 °F
Mean Temperature 64 °F 56 °F 52 °F
Min Temperature 48 °F 45 °F 41 °F
Degree Days  
Heating Degree Days (base 65) 13 9 1 60
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 6 2 44
Dew Point  
Dew Point 55 °F 47 °F 32 °F
Precipitation  
Precipitation 0.12 in 0.02 in 0.00 in 0.17 in
Snowdepth - - - -
Wind  
Wind 17 mph 3 mph 0 mph
Gust Wind 23 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.28 in 30.05 in 29.79 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Oct. 21, 2012 Rise Set
Actual Time 7:25 AM PDT 6:23 PM PDT
Civil Twilight 6:58 AM PDT 6:50 PM PDT
Nautical Twilight 6:28 AM PDT 7:21 PM PDT
Astronomical Twilight 5:57 AM PDT 7:51 PM PDT
Moon 1:48 PM PDT (10/21) No Moon Set
Length of Visible Light 11h 51m
Length of Day
10h 57m
Waxing Crescent, 46% of the Moon is Illuminated
Oct 21
Waxing Crescent
Oct 21
First Quarter
Oct 29
Full
Nov 6
Last Quarter
Nov 13
New

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
21 64 52 41 43 39 32 100 71 30 29.94 29.89 29.85 10 10 9 17 3 23 0.00  
22 62 55 48 54 47 43 100 76 48 29.94 29.87 29.79 10 10 2 17 7 23 0.12  
23 60 52 44 50 45 39 100 80 45 30.07 30.02 29.95 10 9 0 12 2 - 0.00  
24 66 57 48 54 48 41 100 78 43 30.22 30.12 30.03 10 10 6 13 3 21 0.02  
25 66 56 46 54 49 41 100 82 42 30.28 30.24 30.21 10 8 2 9 2 - 0.03  
26 75 58 41 55 46 37 100 73 29 30.26 30.18 30.11 10 10 10 13 2 16 0.00  
27 80 64 48 55 53 48 100 77 39 30.10 30.04 29.96 10 10 10 12 3 - 0.00