Weather History for Grass Valley, CA

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Week of September 30, 2012 through October 6, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 78 °F 59 °F
Mean Temperature 83 °F 71 °F 57 °F
Min Temperature 75 °F 64 °F 51 °F
Degree Days  
Heating Degree Days (base 65) 8 2 0 17
Cooling Degree Days (base 65) 18 8 0 68
Growing Degree Days (base 50) 33 21 7 171
Dew Point  
Dew Point 48 °F 37 °F 23 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 10 mph 2 mph 0 mph
Gust Wind 16 mph 16 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.23 in 30.10 in 30.00 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Sep. 30, 2012 Rise Set
Actual Time 6:59 AM PDT 6:47 PM PDT
Civil Twilight 6:32 AM PDT 7:13 PM PDT
Nautical Twilight 6:01 AM PDT 7:44 PM PDT
Astronomical Twilight 5:30 AM PDT 8:16 PM PDT
Moon 6:54 PM PDT (9/30) 7:34 AM PDT (9/30)
Length of Visible Light 12h 40m
Length of Day
11h 47m
Full, 100% of the Moon is Illuminated
Sep 30
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter
Oct 29
Full

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  
30 89 78 68 39 32 27 26 19 11 30.23 30.18 30.15 10.0 10.0 10.0 10 2 - 0.00  
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  
1 91 83 75 41 32 23 28 17 10 30.19 30.13 30.09 10.0 10.0 10.0 7 2 - 0.00  
2 89 81 73 41 33 28 28 19 12 30.09 30.04 30.00 10.0 10.0 10.0 7 1 - 0.00  
3 86 80 73 37 30 25 25 18 11 30.07 30.03 30.01 10.0 9.9 5.0 9 5 - 0.00  
4 77 70 64 45 37 30 49 29 20 30.17 30.13 30.07 10.0 10.0 10.0 8 4 - 0.00  
5 68 62 55 46 42 36 72 49 32 30.19 30.16 30.13 10.0 10.0 10.0 8 4 - 0.00  
6 69 60 51 48 45 41 82 59 35 30.13 30.08 30.04 10.0 10.0 10.0 8 1 16 0.00  
7 59 57 55 46 46 46 72 68 63 30.04 30.04 30.03 10.0 10.0 10.0 0 0 - 0.00