Weather History for Grass Valley, CA

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Tuesday, December 11, 2012

  Actual Average (KBLU) Record (KBLU)
Temperature  
Mean Temperature 46 °F -  
Max Temperature 55 °F 45 °F 67 °F (1958)
Min Temperature 37 °F 32 °F 13 °F (1972)
Degree Days  
Heating Degree Days 19    
Moisture  
Dew Point 34 °F    
Average Humidity 62    
Maximum Humidity 100    
Minimum Humidity 26    
Precipitation  
Precipitation 0.04 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 3 mph (SSE)    
Max Wind Speed 12 mph    
Max Gust Speed 22 mph    
Visibility 9 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 11, 2012 Rise Set
Actual Time 7:13 AM PST 4:41 PM PST
Civil Twilight 6:43 AM PST 5:11 PM PST
Nautical Twilight 6:10 AM PST 5:44 PM PST
Astronomical Twilight 5:37 AM PST 6:17 PM PST
Moon 5:15 AM PST (12/11) 3:24 PM PST (12/11)
Length of Visible Light 10h 27m
Length of Day
9h 27m
Waning Crescent, 4% of the Moon is Illuminated
Dec 11
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:35 AM 53.6 °F - 21.2 °F 28% 30.12 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 51.8 °F - 21.2 °F 30% 30.12 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 51.8 °F - 21.2 °F 30% 30.11 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 53.6 °F - 19.4 °F 26% 30.10 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 53.6 °F - 19.4 °F 26% 30.09 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 53.6 °F - 19.4 °F 26% 30.09 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 50.0 °F - 23.0 °F 35% 30.10 in 10.0 mi West 3.5 mph - N/A   Clear
2:55 AM 46.4 °F 45.2 °F 32.0 °F 57% 30.10 in 10.0 mi NW 3.5 mph - N/A   Clear
3:15 AM 44.6 °F - 33.8 °F 66% 30.10 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 42.8 °F - 37.4 °F 81% 30.10 in 9.0 mi Calm Calm - N/A   Clear
3:55 AM 44.6 °F - 37.4 °F 76% 30.09 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 42.8 °F - 35.6 °F 76% 30.09 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 41.0 °F - 35.6 °F 81% 30.08 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 41.0 °F 38.0 °F 32.0 °F 70% 30.07 in 10.0 mi SE 4.6 mph - N/A   Clear
5:15 AM 44.6 °F 41.4 °F 32.0 °F 61% 30.07 in 10.0 mi SE 5.8 mph - N/A   Clear
5:55 AM 46.4 °F 45.2 °F 26.6 °F 46% 30.07 in 10.0 mi SE 3.5 mph - N/A   Clear
6:15 AM 46.4 °F 44.3 °F 32.0 °F 57% 30.07 in 10.0 mi ESE 4.6 mph - N/A   Clear
6:35 AM 46.4 °F 43.5 °F 35.6 °F 66% 30.06 in 10.0 mi ESE 5.8 mph - N/A   Clear
6:55 AM 46.4 °F 43.5 °F 33.8 °F 62% 30.06 in 10.0 mi ESE 5.8 mph - N/A   Clear
7:15 AM 48.2 °F - 32.0 °F 54% 30.06 in 10.0 mi ESE 8.1 mph - N/A   Clear
7:55 AM 48.2 °F - 30.2 °F 50% 30.06 in 10.0 mi SE 5.8 mph - N/A   Clear
8:15 AM 48.2 °F - 30.2 °F 50% 30.06 in 10.0 mi SE 5.8 mph - N/A   Clear
8:35 AM 48.2 °F - 30.2 °F 50% 30.06 in 10.0 mi SE 4.6 mph - N/A   Clear
8:55 AM 50.0 °F - 30.2 °F 47% 30.06 in 10.0 mi SE 5.8 mph - N/A   Clear
9:15 AM 50.0 °F - 30.2 °F 47% 30.05 in 10.0 mi SE 8.1 mph - N/A   Clear
9:35 AM 51.8 °F - 30.2 °F 44% 30.05 in 10.0 mi SE 6.9 mph - N/A   Clear
9:55 AM 53.6 °F - 30.2 °F 41% 30.04 in 10.0 mi SE 5.8 mph - N/A   Clear
10:15 AM 53.6 °F - 32.0 °F 44% 30.04 in 10.0 mi SSE 6.9 mph - N/A   Clear
10:35 AM 53.6 °F - 32.0 °F 44% 30.04 in 10.0 mi SSE 5.8 mph - N/A   Clear
10:55 AM 55.4 °F - 32.0 °F 41% 30.03 in 10.0 mi SSE 5.8 mph - N/A   Clear
11:15 AM 55.4 °F - 32.0 °F 41% 30.01 in 10.0 mi SSE 6.9 mph - N/A   Clear
11:35 AM 55.4 °F - 32.0 °F 41% 30.00 in 10.0 mi South 5.8 mph - N/A   Clear
11:55 AM 55.4 °F - 32.0 °F 41% 29.98 in 10.0 mi SSE 10.4 mph 16.1 mph N/A   Clear
12:15 PM 55.4 °F - 32.0 °F 41% 29.97 in 10.0 mi South 8.1 mph - N/A   Clear
12:35 PM 55.4 °F - 32.0 °F 41% 29.96 in 10.0 mi South 4.6 mph - N/A   Partly Cloudy
12:55 PM 55.4 °F - 33.8 °F 44% 29.95 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:15 PM 53.6 °F - 33.8 °F 47% 29.94 in 10.0 mi South 4.6 mph - N/A   Partly Cloudy
1:35 PM 53.6 °F - 35.6 °F 51% 29.94 in 10.0 mi SSE 4.6 mph - N/A   Scattered Clouds
1:55 PM 53.6 °F - 35.6 °F 51% 29.93 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:15 PM 51.8 °F - 37.4 °F 58% 29.92 in 10.0 mi SSE 4.6 mph - N/A   Clear
2:35 PM 51.8 °F - 35.6 °F 54% 29.91 in 10.0 mi SSE 9.2 mph - N/A   Clear
2:55 PM 50.0 °F - 37.4 °F 62% 29.91 in 10.0 mi SSE 5.8 mph - N/A   Clear
3:15 PM 50.0 °F - 37.4 °F 62% 29.90 in 10.0 mi SSE 4.6 mph - N/A   Clear
3:35 PM 50.0 °F - 37.4 °F 62% 29.89 in 10.0 mi SSE 6.9 mph - N/A   Clear
3:55 PM 50.0 °F - 37.4 °F 62% 29.88 in 10.0 mi SSE 5.8 mph - N/A   Clear
4:15 PM 48.2 °F - 39.2 °F 71% 29.88 in 10.0 mi Calm Calm - N/A   Clear
4:35 PM 48.2 °F - 39.2 °F 71% 29.87 in 9.0 mi SSE 6.9 mph - N/A   Clear
4:55 PM 46.4 °F - 41.0 °F 81% 29.86 in 9.0 mi Calm Calm - N/A   Clear
5:15 PM 46.4 °F 42.9 °F 41.0 °F 81% 29.86 in 10.0 mi SSE 6.9 mph - N/A   Clear
5:35 PM 46.4 °F 42.4 °F 41.0 °F 81% 29.85 in 10.0 mi SSE 8.1 mph - N/A   Clear
5:55 PM 46.4 °F 42.4 °F 41.0 °F 81% 29.84 in 10.0 mi SSE 8.1 mph - N/A   Clear
6:15 PM 46.4 °F 41.5 °F 41.0 °F 81% 29.83 in 8.0 mi SSE 10.4 mph 17.3 mph N/A   Clear
6:35 PM 46.4 °F 41.9 °F 41.0 °F 81% 29.81 in 9.0 mi SE 9.2 mph 21.9 mph N/A   Clear
6:55 PM 46.4 °F 41.1 °F 41.0 °F 81% 29.80 in 8.0 mi SSE 11.5 mph 18.4 mph N/A   Clear
7:35 PM 46.4 °F 42.9 °F 39.2 °F 76% 29.80 in 9.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
7:55 PM 46.4 °F 44.3 °F 39.2 °F 76% 29.81 in 9.0 mi South 4.6 mph - N/A   Overcast
8:15 PM 46.4 °F 43.5 °F 39.2 °F 76% 29.82 in 8.0 mi South 5.8 mph - N/A   Overcast
8:35 PM 44.6 °F 42.2 °F 41.0 °F 87% 29.81 in 5.0 mi South 4.6 mph - N/A   Overcast
8:55 PM 42.8 °F - 41.0 °F 93% 29.81 in 1.5 mi Calm Calm - N/A   Overcast
9:15 PM 42.8 °F 37.5 °F 41.0 °F 93% 29.78 in 1.0 mi South 9.2 mph 18.4 mph N/A   Overcast
9:35 PM 41.0 °F 37.1 °F 41.0 °F 100% 29.81 in 0.2 mi South 5.8 mph - N/A   Overcast
9:55 PM 41.0 °F 37.1 °F 41.0 °F 100% 29.82 in 1.5 mi South 5.8 mph - N/A   Overcast
10:15 PM 41.0 °F 35.2 °F 39.2 °F 93% 29.81 in 2.0 mi SSE 9.2 mph 21.9 mph N/A   Overcast
10:35 PM 39.2 °F 35.0 °F 37.4 °F 93% 29.81 in 2.0 mi South 5.8 mph - 0.02 in   Overcast
10:55 PM 39.2 °F 33.6 °F 37.4 °F 93% 29.82 in 2.0 mi South 8.1 mph 20.7 mph 0.03 in   Overcast
11:15 PM 37.4 °F 33.8 °F 37.4 °F 100% 29.82 in 1.5 mi SSE 4.6 mph 17.3 mph N/A   Overcast
11:55 PM 37.4 °F 31.4 °F 37.4 °F 100% 29.82 in 1.0 mi SSE 8.1 mph - 0.01 in   Overcast