Weather History for Boise, ID

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Thursday, December 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 39 °F 30 °F  
Max Temperature 45 °F 37 °F 57 °F (1964)
Min Temperature 33 °F 23 °F -8 °F (1990)
Degree Days  
Heating Degree Days 26 35  
Month to date heating degree days 519 673  
Since 1 July heating degree days 1499 1927  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1274 942  
Moisture  
Dew Point 8 °F    
Average Humidity 27    
Maximum Humidity 35    
Minimum Humidity 19    
Precipitation  
Precipitation 0.00 in 0.05 in 0.71 in (1996)
Month to date precipitation 0.91 1.00  
Year to date precipitation 11.38 11.18  
Snow  
Snow 0.00 in 0.20 in 9.80 in (1996)
Month to date snowfall 1.2 4.2  
Since 1 July snowfall 1.2 6.9  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 19 mph (SSE)    
Max Wind Speed 33 mph    
Max Gust Speed 45 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 20, 2012 Rise Set
Actual Time 8:14 AM MST 5:11 PM MST
Civil Twilight 7:41 AM MST 5:43 PM MST
Nautical Twilight 7:05 AM MST 6:20 PM MST
Astronomical Twilight 6:30 AM MST 6:55 PM MST
Moon 12:40 PM MST (12/20) 12:56 AM MST (12/20)
Length of Visible Light 10h 02m
Length of Day
8h 56m
First Quarter, 56% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Hourly Weather History & Observations

Time (MST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 35.1 °F 25.2 °F 10.0 °F 35% 30.23 in 10.0 mi SSE 16.1 mph - N/A   Overcast
1:53 AM 34.0 °F 23.0 °F 9.0 °F 35% 30.21 in 10.0 mi SSE 18.4 mph - N/A   Partly Cloudy
2:53 AM 35.1 °F 25.2 °F 9.0 °F 34% 30.21 in 10.0 mi SE 16.1 mph - N/A   Partly Cloudy
3:53 AM 35.1 °F 24.8 °F 10.0 °F 35% 30.20 in 10.0 mi SSE 17.3 mph 25.3 mph N/A   Partly Cloudy
4:53 AM 36.0 °F 25.0 °F 9.0 °F 33% 30.18 in 10.0 mi SE 20.7 mph 24.2 mph N/A   Clear
5:53 AM 37.0 °F 25.1 °F 8.1 °F 30% 30.17 in 10.0 mi SE 26.5 mph 33.4 mph N/A   Mostly Cloudy
6:53 AM 36.0 °F 26.0 °F 8.1 °F 31% 30.16 in 10.0 mi SE 17.3 mph 27.6 mph N/A   Scattered Clouds
7:53 AM 37.0 °F 27.4 °F 8.1 °F 30% 30.17 in 10.0 mi SSE 17.3 mph 25.3 mph N/A   Overcast
8:53 AM 37.0 °F 25.6 °F 7.0 °F 29% 30.15 in 10.0 mi SE 24.2 mph 34.5 mph N/A   Partly Cloudy
9:53 AM 37.9 °F 26.6 °F 6.1 °F 27% 30.14 in 10.0 mi SE 25.3 mph 39.1 mph N/A   Mostly Cloudy
10:53 AM 39.0 °F 28.3 °F 6.1 °F 26% 30.13 in 10.0 mi SE 24.2 mph 34.5 mph N/A   Partly Cloudy
11:53 AM 41.0 °F 30.0 °F 6.1 °F 24% 30.10 in 10.0 mi SE 28.8 mph 36.8 mph N/A   Clear
12:53 PM 42.1 °F 31.5 °F 3.9 °F 21% 30.07 in 10.0 mi SSE 28.8 mph 43.7 mph N/A   Clear
1:53 PM 42.1 °F 31.5 °F 5.0 °F 22% 30.04 in 10.0 mi SSE 28.8 mph 39.1 mph N/A   Clear
2:53 PM 44.1 °F 34.2 °F 5.0 °F 20% 30.02 in 10.0 mi SSE 28.8 mph 41.4 mph N/A   Clear
3:53 PM 43.0 °F 34.0 °F 7.0 °F 23% 30.03 in 10.0 mi SSE 21.9 mph 27.6 mph N/A   Clear
4:53 PM 39.9 °F 31.8 °F 8.1 °F 27% 30.03 in 10.0 mi SSE 15.0 mph - N/A   Clear
5:53 PM 37.9 °F 28.9 °F 9.0 °F 30% 30.02 in 10.0 mi SSE 16.1 mph - N/A   Clear
6:53 PM 36.0 °F 28.0 °F 10.0 °F 34% 30.04 in 10.0 mi SSE 11.5 mph - N/A   Clear
7:53 PM 37.9 °F 29.6 °F 10.0 °F 32% 30.02 in 10.0 mi South 13.8 mph - N/A   Clear
8:53 PM 39.9 °F 32.1 °F 10.0 °F 29% 30.01 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
9:53 PM 39.0 °F 31.4 °F 9.0 °F 29% 30.01 in 10.0 mi SSE 12.7 mph - N/A   Mostly Cloudy
10:53 PM 41.0 °F 34.7 °F 8.1 °F 26% 30.00 in 10.0 mi SE 10.4 mph 20.7 mph N/A   Clear
11:53 PM 39.9 °F 33.9 °F 9.0 °F 28% 29.99 in 10.0 mi SSE 9.2 mph - N/A   Partly Cloudy