Weather History for KPSF - May, 2014

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Wednesday, May 21, 2014

  Actual Average Record
Temperature  
Mean Temperature 58 °F 56 °F  
Max Temperature 75 °F 68 °F 85 °F (2013)
Min Temperature 41 °F 45 °F 30 °F (1936)
Degree Days  
Heating Degree Days 7 9  
Month to date heating degree days 189 250  
Since 1 July heating degree days 7605 7285  
Cooling Degree Days 0 0  
Month to date cooling degree days 3 0  
Year to date cooling degree days 4 2  
Growing Degree Days 7 (Base 50)    
Moisture  
Dew Point 42 °F    
Average Humidity 59    
Maximum Humidity 93    
Minimum Humidity 25    
Precipitation  
Precipitation T in 0.16 in 1.62 in (1954)
Month to date precipitation 0.69 2.55  
Year to date precipitation 13.64 15.38  
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 4 mph (SW)    
Max Wind Speed 13 mph    
Max Gust Speed 17 mph    
Visibility 9 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

May. 21, 2014 Rise Set
Actual Time 5:25 AM EDT 8:14 PM EDT
Civil Twilight 4:53 AM EDT 8:47 PM EDT
Nautical Twilight 4:11 AM EDT 9:28 PM EDT
Astronomical Twilight 3:23 AM EDT 10:16 PM EDT
Moon 1:16 AM EDT (5/21) 12:43 PM EDT (5/21)
Length of Visible Light 15h 53m
Length of Day
14h 48m
Waning Gibbous, 49% of the Moon is Illuminated
May 21
Waning Gibbous
May 28
New
Jun 5
First Quarter
Jun 13
Full
Jun 19
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 48.0 °F - 42.1 °F 80% 29.95 in 10.0 mi Calm Calm - N/A   Clear
1:54 AM 46.0 °F - 42.1 °F 86% 29.94 in 10.0 mi Calm Calm - N/A   Clear
2:54 AM 46.9 °F - 42.1 °F 83% 29.94 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 44.1 °F - 41.0 °F 89% 29.94 in 10.0 mi Calm Calm - N/A   Clear
4:54 AM 42.1 °F - 39.9 °F 92% 29.95 in 2.0 mi Calm Calm - N/A   Clear
5:01 AM 42.1 °F - 39.9 °F 92% 29.99 in 1.2 mi Calm Calm - N/A   Clear
5:05 AM 42.1 °F - 39.9 °F 92% 29.99 in 4.0 mi Calm Calm - N/A   Clear
5:54 AM 41.0 °F - 39.9 °F 96% 29.96 in 10.0 mi Calm Calm - N/A   Clear
6:54 AM 46.0 °F 43.9 °F 42.1 °F 86% 29.96 in 10.0 mi NNE 4.6 mph - N/A   Clear
7:54 AM 52.0 °F - 41.0 °F 66% 29.96 in 10.0 mi Calm Calm - N/A   Clear
8:54 AM 60.1 °F - 41.0 °F 49% 29.95 in 10.0 mi Calm Calm - 0.00 in   Clear
9:54 AM 66.9 °F - 35.1 °F 31% 29.92 in 10.0 mi NNW 3.5 mph - N/A   Clear
11:54 AM 70.0 °F - 34.0 °F 27% 29.91 in 10.0 mi South 5.8 mph - N/A   Clear
12:54 PM 72.0 °F - 36.0 °F 27% 29.88 in 10.0 mi SE 8.1 mph - N/A   Clear
2:54 PM 73.0 °F - 39.0 °F 29% 29.86 in 9.0 mi SW 8.1 mph - N/A   Mostly Cloudy
3:54 PM 73.0 °F - 39.0 °F 29% 29.84 in 9.0 mi WSW 6.9 mph - N/A   Overcast
4:54 PM 73.0 °F - 43.0 °F 34% 29.84 in 10.0 mi WSW 8.1 mph - N/A   Overcast
5:54 PM 70.0 °F - 43.0 °F 38% 29.85 in 10.0 mi SSW 6.9 mph - N/A   Overcast
6:54 PM 69.1 °F - 44.1 °F 40% 29.83 in 10.0 mi SW 6.9 mph - 0.00 in Rain Light Rain
7:54 PM 66.9 °F - 46.9 °F 49% 29.84 in 10.0 mi SW 8.1 mph - 0.00 in Rain Light Rain
8:54 PM 64.0 °F - 48.9 °F 58% 29.83 in 10.0 mi Variable 4.6 mph - 0.00 in Rain Light Rain
9:54 PM 62.1 °F - 50.0 °F 65% 29.84 in 10.0 mi South 3.5 mph - 0.00 in   Clear
10:54 PM 59.0 °F - 50.0 °F 72% 29.84 in 10.0 mi Calm Calm - N/A   Overcast
11:54 PM 57.0 °F - 50.0 °F 77% 29.83 in 10.0 mi Calm Calm - N/A   Scattered Clouds