Weather History for Napa County, CA

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Week of December 23, 2012 through December 29, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 53 °F 47 °F
Mean Temperature 52 °F 45 °F 40 °F
Min Temperature 46 °F 37 °F 33 °F
Degree Days  
Heating Degree Days (base 65) 25 20 13 138
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 54 °F 40 °F 32 °F
Precipitation  
Precipitation 0.69 in 0.23 in 0.00 in 1.35 in
Snowdepth - - - -
Wind  
Wind 29 mph 6 mph 0 mph
Gust Wind 38 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.19 in 30.02 in 29.76 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Dec. 26, 2012 Rise Set
Actual Time 7:24 AM PST 4:55 PM PST
Civil Twilight 6:54 AM PST 5:25 PM PST
Nautical Twilight 6:21 AM PST 5:58 PM PST
Astronomical Twilight 5:49 AM PST 6:30 PM PST
Moon 3:53 PM PST (12/26) 5:52 AM PST (12/26)
Length of Visible Light 10h 30m
Length of Day
9h 31m
Waxing Gibbous, 98% of the Moon is Illuminated
Dec 26
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Daily Weather History & 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  
23 57 52 46 54 49 45 93 85 77 30.07 29.93 29.82 10 7 2 29 10 38 0.65 Rain
24 56 45 34 45 39 32 100 81 61 30.19 30.13 30.01 10 7 0 8 3 20 0.00 Fog
25 47 42 37 45 41 36 93 88 83 30.15 29.92 29.76 10 7 2 20 8 26 0.69 Rain
26 56 48 39 45 42 37 92 76 59 30.07 29.93 29.83 10 9 2 20 9 23 0.01 Rain
27 54 45 35 40 38 34 92 73 54 30.15 30.11 30.07 10 10 10 13 3 23 0.00  
28 47 40 33 39 36 32 96 83 70 30.17 30.10 30.03 10 10 10 17 6 22 0.00  
29 55 45 34 42 38 32 92 73 54 30.06 30.02 30.00 10 10 10 13 4 16 T