Weather History for Napa County, CA

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Week of August 18, 2013 through August 24, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 81 °F 74 °F
Mean Temperature 75 °F 69 °F 66 °F
Min Temperature 59 °F 56 °F 50 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 10 4 1 26
Growing Degree Days (base 50) 25 18 15 128
Dew Point  
Dew Point 61 °F 56 °F 48 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 24 mph 10 mph 0 mph
Gust Wind 48 mph 25 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 29.97 in 29.85 in 29.74 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Aug. 22, 2013 Rise Set
Actual Time 6:30 AM PDT 7:52 PM PDT
Civil Twilight 6:02 AM PDT 8:20 PM PDT
Nautical Twilight 5:29 AM PDT 8:53 PM PDT
Astronomical Twilight 4:54 AM PDT 9:27 PM PDT
Moon 8:43 PM PDT (8/22) 8:22 AM PDT (8/22)
Length of Visible Light 14h 17m
Length of Day
13h 22m
Waning Gibbous, 96% of the Moon is Illuminated
Aug 22
Waning Gibbous
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter
Sep 19
Full

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Aug high avg low high avg low high avg low high avg low high avg low high avg high sum  
18 91 75 59 61 59 57 90 63 36 29.89 29.82 29.74 10 10 8 18 5 30 0.00  
19 84 72 59 60 58 56 90 67 43 29.87 29.82 29.77 10 10 10 20 8 48 0.00  
20 77 68 59 58 57 56 90 70 50 29.88 29.84 29.78 10 10 10 22 11 26 0.00  
21 77 66 55 57 54 51 87 69 50 29.94 29.88 29.82 10 10 10 20 12 45 0.00  
22 78 67 55 55 53 50 93 68 43 29.97 29.90 29.85 10 10 10 21 13 25 0.00  
23 74 66 57 57 54 53 86 70 53 29.92 29.85 29.77 10 10 10 16 10 31 0.00  
24 83 67 50 58 54 48 93 69 45 29.86 29.83 29.80 10 10 10 24 11 30 0.00