Weather History for San Luis Obispo, CA

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Sunday, May 10, 2009

  Actual Average Record
Temperature  
Mean Temperature 62 °F -  
Max Temperature 79 °F 70 °F 95 °F (1993)
Min Temperature 46 °F 46 °F 37 °F (2002)
Degree Days  
Heating Degree Days 2    
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 67    
Maximum Humidity 87    
Minimum Humidity 34    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 4 mph (WNW)    
Max Wind Speed 21 mph    
Max Gust Speed 23 mph    
Visibility 7 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

May. 10, 2009 Rise Set
Actual Time 6:02 AM PDT 7:56 PM PDT
Civil Twilight 5:34 AM PDT 8:23 PM PDT
Nautical Twilight 5:00 AM PDT 8:57 PM PDT
Astronomical Twilight 4:24 AM PDT 9:33 PM PDT
Moon 9:56 PM PDT (5/10) 6:43 AM PDT (5/10)
Length of Visible Light 14h 49m
Length of Day
13h 53m
Full, 97% of the Moon is Illuminated
May 10
Full
May 17
Last Quarter
May 24
New
May 30
First Quarter
Jun 7
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 51.1 °F 45.0 °F 80% 29.94 in 6.0 mi Calm Calm - N/A   Haze
1:56 AM 51.1 °F 44.1 °F 77% 29.92 in 7.0 mi Calm Calm - N/A   Clear
2:56 AM 48.9 °F 43.0 °F 80% 29.91 in 7.0 mi Calm Calm - N/A   Clear
3:56 AM 48.0 °F 42.1 °F 80% 29.91 in 7.0 mi Calm Calm - N/A   Clear
4:56 AM 48.9 °F 43.0 °F 80% 29.91 in 7.0 mi Calm Calm - N/A   Clear
5:56 AM 46.9 °F 42.1 °F 83% 29.91 in 6.0 mi Calm Calm - N/A   Haze
6:15 AM 48.2 °F 44.6 °F 87% 29.91 in 2.5 mi Calm Calm - N/A   Haze
6:21 AM 48.2 °F 44.6 °F 87% 29.92 in 1.5 mi Calm Calm - N/A   Haze
6:37 AM 50.0 °F 46.4 °F 87% 29.92 in 3.0 mi Calm Calm - N/A   Mostly Cloudy
6:45 AM 50.0 °F 46.4 °F 87% 29.92 in 2.0 mi Calm Calm - N/A   Overcast
6:56 AM 50.0 °F 46.0 °F 86% 29.92 in 3.0 mi Calm Calm - N/A   Mostly Cloudy
7:09 AM 51.8 °F 46.4 °F 82% 29.92 in 4.0 mi SW 3.5 mph - N/A   Scattered Clouds
7:56 AM 54.0 °F 48.0 °F 80% 29.93 in 6.0 mi Calm Calm - N/A   Haze
8:56 AM 64.9 °F 48.9 °F 56% 29.92 in 10.0 mi Calm Calm - N/A   Clear
9:56 AM 75.9 °F 48.9 °F 38% 29.92 in 10.0 mi WNW 8.1 mph - N/A   Clear
10:56 AM 79.0 °F 48.0 °F 34% 29.91 in 10.0 mi WNW 13.8 mph - N/A   Clear
11:56 AM 78.1 °F 48.9 °F 36% 29.90 in 10.0 mi WNW 16.1 mph 23.0 mph N/A   Clear
12:56 PM 73.0 °F 48.9 °F 42% 29.91 in 10.0 mi WNW 15.0 mph - N/A   Clear
1:56 PM 73.0 °F 46.9 °F 39% 29.91 in 10.0 mi NW 19.6 mph - N/A   Clear
2:56 PM 72.0 °F 46.9 °F 41% 29.90 in 10.0 mi NW 20.7 mph - N/A   Clear
3:56 PM 71.1 °F 46.9 °F 42% 29.90 in 10.0 mi NW 15.0 mph 23.0 mph N/A   Clear
4:56 PM 66.0 °F 48.0 °F 52% 29.89 in 9.0 mi WNW 17.3 mph - N/A   Clear
5:56 PM 63.0 °F 48.0 °F 58% 29.89 in 9.0 mi WNW 17.3 mph - N/A   Clear
6:56 PM 61.0 °F 46.9 °F 60% 29.88 in 8.0 mi WNW 12.7 mph - N/A   Clear
7:56 PM 57.0 °F 46.9 °F 69% 29.88 in 7.0 mi WNW 9.2 mph - N/A   Clear
8:56 PM 55.0 °F 46.9 °F 74% 29.90 in 8.0 mi Calm Calm - N/A   Clear
9:56 PM 54.0 °F 46.9 °F 77% 29.91 in 8.0 mi West 3.5 mph - N/A   Clear
10:56 PM 54.0 °F 46.0 °F 75% 29.91 in 8.0 mi Calm Calm - N/A   Clear
11:56 PM 53.1 °F 46.0 °F 77% 29.92 in 7.0 mi Calm Calm - N/A   Clear