Weather History for Napa County, CA

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Tuesday, November 23, 2010

  Actual Average Record
Temperature  
Mean Temperature 44 °F 49 °F  
Max Temperature 55 °F 61 °F 72 °F (2007)
Min Temperature 32 °F 38 °F 23 °F (2003)
Degree Days  
Heating Degree Days 21    
Month to date heating degree days 238  
Since 1 July heating degree days 592  
Cooling Degree Days 0    
Month to date cooling degree days 8  
Year to date cooling degree days 189  
Moisture  
Dew Point 42 °F    
Average Humidity 69    
Maximum Humidity 96    
Minimum Humidity 41    
Precipitation  
Precipitation 0.03 in - 1.24 in (1988)
Month to date precipitation 1.95  
Year to date precipitation 21.45  
Since 1 July precipitation 4.11  
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 12 mph (WSW)    
Max Wind Speed 28 mph    
Max Gust Speed 33 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Nov. 23, 2010 Rise Set
Actual Time 6:58 AM PST 4:51 PM PST
Civil Twilight 6:30 AM PST 5:20 PM PST
Nautical Twilight 5:57 AM PST 5:52 PM PST
Astronomical Twilight 5:26 AM PST 6:24 PM PST
Moon 6:40 PM PST (11/23) 8:59 AM PST (11/23)
Length of Visible Light 10h 50m
Length of Day
9h 53m
Waning Gibbous, 95% of the Moon is Illuminated
Nov 23
Waning Gibbous
Nov 28
Last Quarter
Dec 5
New
Dec 13
First Quarter
Dec 21
Full

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:41 AM 51.8 °F - 50.0 °F 94% 30.07 in 10.0 mi SSW 12.7 mph 21.9 mph N/A   Overcast
12:54 AM 51.1 °F - 50.0 °F 96% 30.04 in 10.0 mi South 15.0 mph - N/A   Overcast
1:04 AM 51.8 °F - 50.0 °F 94% 30.06 in 10.0 mi SSW 13.8 mph 23.0 mph N/A   Overcast
1:16 AM 51.8 °F - 50.0 °F 94% 30.06 in 10.0 mi SW 12.7 mph - N/A   Overcast
1:23 AM 51.8 °F - 50.0 °F 94% 30.05 in 10.0 mi SW 12.7 mph - N/A   Overcast
1:54 AM 51.1 °F - 50.0 °F 96% 30.02 in 10.0 mi SSW 9.2 mph - N/A   Overcast
2:52 AM 51.8 °F - 48.2 °F 88% 30.02 in 10.0 mi SW 9.2 mph - N/A   Overcast
2:54 AM 51.1 °F - 48.9 °F 92% 29.99 in 10.0 mi SW 10.4 mph - N/A   Overcast
3:54 AM 51.1 °F - 48.9 °F 92% 29.96 in 10.0 mi SSW 15.0 mph - N/A   Scattered Clouds
4:37 AM 51.8 °F - 48.2 °F 88% 29.98 in 4.0 mi SW 13.8 mph - 0.02 in Rain Rain
4:54 AM 50.0 °F - 48.9 °F 96% 29.95 in 9.0 mi SW 12.7 mph - 0.02 in   Overcast
5:23 AM 50.0 °F - 48.2 °F 94% 29.97 in 10.0 mi SW 15.0 mph - N/A   Mostly Cloudy
5:54 AM 50.0 °F - 48.9 °F 96% 29.94 in 10.0 mi SW 11.5 mph - N/A   Scattered Clouds
6:54 AM 51.1 °F - 48.9 °F 92% 29.93 in 4.0 mi WSW 17.3 mph - 0.00 in Rain Light Rain
7:05 AM 51.8 °F - 48.2 °F 88% 29.95 in 4.0 mi SW 13.8 mph - 0.01 in Rain Light Rain
7:09 AM 50.0 °F - 48.2 °F 94% 29.95 in 5.0 mi SW 12.7 mph - 0.01 in Rain Light Rain
7:54 AM 51.1 °F - 48.9 °F 92% 29.93 in 10.0 mi WSW 8.1 mph - 0.01 in   Overcast
8:00 AM 51.8 °F - 48.2 °F 88% 29.95 in 10.0 mi WSW 11.5 mph - N/A   Mostly Cloudy
8:54 AM 52.0 °F - 46.9 °F 83% 29.94 in 10.0 mi West 17.3 mph - N/A   Mostly Cloudy
9:54 AM 52.0 °F - 48.0 °F 86% 29.95 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
12:54 PM 55.0 °F - 33.1 °F 43% 29.94 in 10.0 mi WNW 20.7 mph 26.5 mph N/A   Scattered Clouds
1:54 PM 53.1 °F - 30.9 °F 43% 29.94 in 10.0 mi WNW 21.9 mph 26.5 mph N/A   Scattered Clouds
2:54 PM 53.1 °F - 30.9 °F 43% 29.94 in 10.0 mi NW 21.9 mph - N/A   Scattered Clouds
3:54 PM 51.1 °F - 30.9 °F 46% 29.96 in 10.0 mi WNW 15.0 mph - N/A   Clear
4:54 PM 48.0 °F - 30.9 °F 52% 29.98 in 10.0 mi NW 9.2 mph - N/A   Clear
5:54 PM 46.0 °F 40.6 °F 30.0 °F 54% 29.99 in 10.0 mi West 11.5 mph - N/A   Clear
6:54 PM 43.0 °F 38.8 °F 30.0 °F 60% 30.02 in 10.0 mi NW 6.9 mph - N/A   Clear
7:54 PM 39.9 °F 35.1 °F 28.0 °F 63% 30.04 in 10.0 mi WNW 6.9 mph - N/A   Clear
8:54 PM 39.9 °F - 28.0 °F 63% 30.06 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 36.0 °F - 28.9 °F 76% 30.08 in 10.0 mi Calm Calm - N/A   Clear
10:54 PM 35.1 °F 32.2 °F 28.0 °F 76% 30.08 in 10.0 mi North 3.5 mph - N/A   Clear