Weather History for Napa County, CA

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Sunday, January 29, 2012

  Actual Average Record
Temperature  
Mean Temperature 50 °F 47 °F  
Max Temperature 65 °F 57 °F 65 °F (2012)
Min Temperature 34 °F 38 °F 28 °F (2002)
Degree Days  
Heating Degree Days 15    
Month to date heating degree days 520  
Since 1 July heating degree days 1788  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 38 °F    
Average Humidity 65    
Maximum Humidity 86    
Minimum Humidity 43    
Precipitation  
Precipitation 0.00 in - 1.91 in (1968)
Month to date precipitation 4.00  
Year to date precipitation 4.00  
Since 1 July precipitation 7.58  
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 4 mph (NNW)    
Max Wind Speed 10 mph    
Max Gust Speed 13 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Jan. 29, 2012 Rise Set
Actual Time 7:16 AM PST 5:28 PM PST
Civil Twilight 6:48 AM PST 5:56 PM PST
Nautical Twilight 6:16 AM PST 6:27 PM PST
Astronomical Twilight 5:45 AM PST 6:59 PM PST
Moon 10:17 AM PST No Moon Set
Length of Visible Light 11h 07m
Length of Day
10h 11m
Waxing Crescent, 37% of the Moon is Illuminated
Jan 29
Waxing Crescent
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last Quarter
Feb 21
New

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 42.1 °F 38.4 °F 35.1 °F 76% 30.27 in 10.0 mi NNW 5.8 mph - N/A   Clear
1:54 AM 41.0 °F 36.4 °F 33.1 °F 73% 30.27 in 10.0 mi NNE 6.9 mph - N/A   Clear
2:54 AM 39.0 °F 32.8 °F 33.1 °F 79% 30.27 in 10.0 mi North 9.2 mph - N/A   Clear
3:54 AM 39.0 °F 35.7 °F 33.1 °F 79% 30.25 in 10.0 mi North 4.6 mph - N/A   Clear
4:54 AM 39.0 °F 34.0 °F 33.1 °F 79% 30.25 in 10.0 mi North 6.9 mph - N/A   Clear
5:54 AM 37.0 °F 34.5 °F 30.9 °F 79% 30.24 in 10.0 mi North 3.5 mph - N/A   Clear
6:54 AM 35.1 °F 31.0 °F 30.9 °F 85% 30.25 in 10.0 mi NW 4.6 mph - N/A   Clear
7:54 AM 35.1 °F 32.2 °F 30.9 °F 85% 30.27 in 10.0 mi North 3.5 mph - N/A   Clear
8:54 AM 45.0 °F 42.6 °F 37.9 °F 76% 30.27 in 10.0 mi NW 4.6 mph - N/A   Clear
9:54 AM 50.0 °F - 37.0 °F 61% 30.25 in 10.0 mi Calm Calm - N/A   Clear
10:54 AM 55.9 °F - 39.9 °F 55% 30.25 in 10.0 mi Variable 3.5 mph - N/A   Clear
11:54 AM 57.9 °F - 39.9 °F 51% 30.24 in 10.0 mi Calm Calm - N/A   Clear
12:54 PM 63.0 °F - 39.9 °F 43% 30.20 in 10.0 mi East 4.6 mph - N/A   Clear
1:54 PM 64.0 °F - 41.0 °F 43% 30.17 in 10.0 mi SE 4.6 mph - N/A   Clear
2:54 PM 62.1 °F - 44.1 °F 52% 30.15 in 10.0 mi SW 6.9 mph - N/A   Clear
3:54 PM 62.1 °F - 44.1 °F 52% 30.14 in 10.0 mi SW 6.9 mph - N/A   Clear
4:54 PM 57.0 °F - 46.0 °F 67% 30.12 in 10.0 mi WSW 4.6 mph - N/A   Overcast
5:54 PM 54.0 °F - 44.1 °F 69% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
6:54 PM 48.0 °F - 43.0 °F 83% 30.12 in 10.0 mi ESE 3.5 mph - N/A   Clear
8:54 PM 48.0 °F - 43.0 °F 83% 30.12 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 48.0 °F - 42.1 °F 80% 30.13 in 10.0 mi WSW 4.6 mph - N/A   Clear
10:54 PM 48.0 °F - 42.1 °F 80% 30.13 in 10.0 mi SE 3.5 mph - N/A   Clear
11:54 PM 46.9 °F - 41.0 °F 80% 30.10 in 10.0 mi SE 8.1 mph - N/A   Clear