Weather History for Grass Valley, CA

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Saturday, September 8, 2012

  Actual Average (KBLU) Record (KBLU)
Temperature  
Mean Temperature 76 °F -  
Max Temperature 84 °F 74 °F 87 °F (1957)
Min Temperature 68 °F 55 °F 39 °F (1985)
Cooling Degree Days 11    
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 39    
Maximum Humidity 52    
Minimum Humidity 28    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.11 in    
Wind  
Wind Speed 1 mph ()    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 10.0 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: Averaged Metar Reports

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Date:

Astronomy

Sep. 08, 2012 Rise Set
Actual Time 6:39 AM PDT 7:22 PM PDT
Civil Twilight 6:12 AM PDT 7:49 PM PDT
Nautical Twilight 5:40 AM PDT 8:21 PM PDT
Astronomical Twilight 5:07 AM PDT 8:54 PM PDT
Moon No Moon Rise 2:22 PM PDT (9/8)
Length of Visible Light 13h 37m
Length of Day
12h 43m
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

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 69.8 °F - 48.2 °F 46% 30.14 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 69.8 °F - 48.2 °F 46% 30.14 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 71.6 °F - 48.2 °F 43% 30.14 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:15 AM 71.6 °F - 50.0 °F 46% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:35 AM 69.8 °F - 50.0 °F 49% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:55 AM 69.8 °F - 50.0 °F 49% 30.14 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:15 AM 68.0 °F - 50.0 °F 52% 30.14 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 69.8 °F - 50.0 °F 49% 30.14 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 69.8 °F - 48.2 °F 46% 30.14 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 69.8 °F - 48.2 °F 46% 30.13 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 71.6 °F - 48.2 °F 43% 30.14 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 69.8 °F - 48.2 °F 46% 30.14 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 69.8 °F - 48.2 °F 46% 30.14 in 10.0 mi East 4.6 mph - N/A   Clear
4:35 AM 71.6 °F - 48.2 °F 43% 30.14 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 71.6 °F - 48.2 °F 43% 30.13 in 10.0 mi East 4.6 mph - N/A   Clear
5:15 AM 71.6 °F - 48.2 °F 43% 30.13 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 71.6 °F - 48.2 °F 43% 30.13 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 69.8 °F - 48.2 °F 46% 30.13 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 71.6 °F - 48.2 °F 43% 30.13 in 10.0 mi Calm Calm - N/A   Clear
6:35 AM 71.6 °F - 48.2 °F 43% 30.13 in 10.0 mi Calm Calm - N/A   Clear
6:55 AM 71.6 °F - 48.2 °F 43% 30.13 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 71.6 °F - 48.2 °F 43% 30.14 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 69.8 °F - 50.0 °F 49% 30.14 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 71.6 °F - 50.0 °F 46% 30.15 in 10.0 mi Calm Calm - N/A   Clear
8:15 AM 73.4 °F - 50.0 °F 44% 30.14 in 10.0 mi Calm Calm - N/A   Clear
8:35 AM 75.2 °F - 50.0 °F 41% 30.15 in 10.0 mi Calm Calm - N/A   Clear
8:55 AM 75.2 °F - 50.0 °F 41% 30.15 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 75.2 °F - 50.0 °F 41% 30.15 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 75.2 °F - 50.0 °F 41% 30.15 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 77.0 °F - 50.0 °F 39% 30.15 in 10.0 mi Calm Calm - N/A   Clear
10:35 AM 78.8 °F - 51.8 °F 39% 30.15 in 10.0 mi WNW 5.8 mph - N/A   Clear
10:55 AM 80.6 °F - 51.8 °F 37% 30.14 in 10.0 mi West 3.5 mph - N/A   Clear
11:15 AM 80.6 °F 80.3 °F 53.6 °F 39% 30.14 in 10.0 mi WNW 5.8 mph - N/A   Clear
11:35 AM 80.6 °F 80.3 °F 53.6 °F 39% 30.14 in 10.0 mi WNW 6.9 mph - N/A   Clear
11:55 AM 82.4 °F - 51.8 °F 35% 30.14 in 10.0 mi WSW 4.6 mph - N/A   Clear
12:15 PM 84.2 °F - 50.0 °F 30% 30.14 in 10.0 mi Calm Calm - N/A   Clear
12:35 PM 82.4 °F - 50.0 °F 32% 30.13 in 10.0 mi Calm Calm - N/A   Clear
12:55 PM 82.4 °F - 50.0 °F 32% 30.13 in 10.0 mi WNW 4.6 mph - N/A   Clear
1:15 PM 84.2 °F - 51.8 °F 33% 30.12 in 10.0 mi WNW 5.8 mph - N/A   Clear
1:35 PM 84.2 °F - 50.0 °F 30% 30.12 in 10.0 mi West 10.4 mph - N/A   Clear
1:55 PM 82.4 °F - 50.0 °F 32% 30.12 in 10.0 mi West 6.9 mph - N/A   Clear
2:15 PM 84.2 °F - 50.0 °F 30% 30.11 in 10.0 mi WSW 8.1 mph - N/A   Clear
2:35 PM 84.2 °F - 50.0 °F 30% 30.10 in 10.0 mi SW 6.9 mph - N/A   Clear
2:55 PM 84.2 °F - 50.0 °F 30% 30.10 in 10.0 mi West 4.6 mph - N/A   Clear
3:15 PM 84.2 °F - 48.2 °F 29% 30.09 in 10.0 mi WSW 6.9 mph - N/A   Clear
3:35 PM 84.2 °F - 48.2 °F 29% 30.09 in 10.0 mi SSW 4.6 mph - N/A   Clear
3:55 PM 84.2 °F - 48.2 °F 29% 30.08 in 10.0 mi WSW 5.8 mph - N/A   Clear
4:15 PM 84.2 °F - 48.2 °F 29% 30.07 in 10.0 mi SW 5.8 mph - N/A   Clear
4:35 PM 84.2 °F - 48.2 °F 29% 30.07 in 10.0 mi West 3.5 mph - N/A   Clear
4:55 PM 84.2 °F - 48.2 °F 29% 30.07 in 10.0 mi WSW 5.8 mph - N/A   Clear
5:15 PM 84.2 °F - 48.2 °F 29% 30.07 in 10.0 mi SW 6.9 mph - N/A   Clear
5:35 PM 84.2 °F - 48.2 °F 29% 30.07 in 10.0 mi SSW 4.6 mph - N/A   Clear
5:55 PM 82.4 °F - 46.4 °F 28% 30.06 in 10.0 mi SW 4.6 mph - N/A   Clear
6:15 PM 82.4 °F - 48.2 °F 30% 30.06 in 10.0 mi SW 4.6 mph - N/A   Clear
6:35 PM 82.4 °F - 50.0 °F 32% 30.06 in 10.0 mi SSW 3.5 mph - N/A   Clear
6:55 PM 80.6 °F - 50.0 °F 34% 30.06 in 10.0 mi Calm Calm - N/A   Clear
7:15 PM 77.0 °F - 50.0 °F 39% 30.06 in 10.0 mi Calm Calm - N/A   Clear
7:35 PM 75.2 °F - 50.0 °F 41% 30.06 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 75.2 °F - 50.0 °F 41% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 75.2 °F - 50.0 °F 41% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:35 PM 73.4 °F - 50.0 °F 44% 30.07 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 73.4 °F - 48.2 °F 41% 30.08 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 73.4 °F - 48.2 °F 41% 30.08 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 73.4 °F - 48.2 °F 41% 30.08 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 73.4 °F - 48.2 °F 41% 30.08 in 10.0 mi ESE 3.5 mph - N/A   Clear
10:35 PM 73.4 °F - 48.2 °F 41% 30.08 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 73.4 °F - 48.2 °F 41% 30.07 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 73.4 °F - 48.2 °F 41% 30.07 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 71.6 °F - 48.2 °F 43% 30.07 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 73.4 °F - 48.2 °F 41% 30.07 in 10.0 mi Calm Calm - N/A   Clear