Napa County, CA

9:50 PM PST on December 17, 2017 (GMT -0800)
Napa County

Weather History for KAPC - September, 2012

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Week of September 2, 2012 through September 8, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 79 °F 73 °F
Mean Temperature 68 °F 64 °F 61 °F
Min Temperature 50 °F 49 °F 47 °F
Degree Days  
Heating Degree Days (base 65) 4 2 0 12
Cooling Degree Days (base 65) 3 1 0 5
Growing Degree Days (base 50) 17 13 10 90
Dew Point  
Dew Point 56 °F 51 °F 40 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 20 mph 7 mph 0 mph
Gust Wind 35 mph 28 mph 23 mph
Sea Level Pressure  
Sea Level Pressure 30.07 in 29.96 in 29.86 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Sep. 08, 2012 Rise Set
Actual Time 6:45 AM PDT 7:27 PM PDT
Civil Twilight 6:18 AM PDT 7:53 PM PDT
Nautical Twilight 5:47 AM PDT 8:25 PM PDT
Astronomical Twilight 5:14 AM PDT 8:57 PM PDT
Moon No Moon Rise 2:24 PM PDT (9/8)
Length of Visible Light 13h 35m
Length of Day
12h 41m
Waning Gibbous, 48% of the Moon is Illuminated
Sep 8
Waning Gibbous
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  
2 86 67 47 56 52 45 100 63 25 30.00 29.95 29.86 10 5 0 13 5 24 0.00 Fog
3 87 68 48 55 51 40 93 56 19 29.95 29.91 29.86 10 10 9 14 5 24 0.00  
4 76 62 48 55 51 46 100 73 46 30.03 29.98 29.91 10 6 0 20 5 - 0.00 Fog
5 73 61 49 54 51 48 100 77 53 30.00 29.95 29.89 10 8 0 18 7 26 0.00 Fog
6 75 63 50 54 50 47 93 70 46 30.00 29.95 29.91 10 10 10 15 9 22 0.00  
7 79 64 48 54 49 45 93 66 39 30.07 30.01 29.96 10 10 10 18 7 25 0.00  
8 76 63 50 54 50 47 93 65 36 30.04 29.98 29.91 10 10 10 18 8 35 0.00