Weather History for Washington, MO

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Sunday, May 20, 2012

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 76 °F 68 °F  
Max Temperature 86 °F 77 °F 93 °F (1902)
Min Temperature 66 °F 58 °F 41 °F (1981)
Degree Days  
Heating Degree Days 0 2  
Month to date heating degree days 62  
Since 1 July heating degree days 4518  
Cooling Degree Days 11 5  
Month to date cooling degree days 64  
Year to date cooling degree days 110  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 63 °F    
Average Humidity 68    
Maximum Humidity 100    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in 0.15 in 1.66 in (1947)
Month to date precipitation 2.95  
Year to date precipitation 14.60  
Snow  
Snow - 0.00 in 0.00 in (2012)
Month to date snowfall 0.0  
Since 1 July snowfall 17.7  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.06 in    
Wind  
Wind Speed 4 mph ()    
Max Wind Speed 14 mph    
Max Gust Speed 21 mph    
Visibility 10.0 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: Averaged Metar Reports

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Astronomy

May. 20, 2012 Rise Set
Actual Time 5:47 AM CDT 8:13 PM CDT
Civil Twilight 5:17 AM CDT 8:44 PM CDT
Nautical Twilight 4:40 AM CDT 9:21 PM CDT
Astronomical Twilight 3:58 AM CDT 10:03 PM CDT
Moon 5:28 AM CDT (5/20) 8:12 PM CDT (5/20)
Length of Visible Light 15h 26m
Length of Day
14h 25m
Waning Crescent, 0% of the Moon is Illuminated
May 20
Waning Crescent
May 20
New
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter

Hourly Weather History & Observations

Time (CDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 75.2 °F - 64.4 °F 69% 30.04 in 10.0 mi SE 5.8 mph - N/A   Partly Cloudy
12:35 AM 73.4 °F - 62.6 °F 69% 30.03 in 10.0 mi SE 4.6 mph - N/A   Clear
12:55 AM 73.4 °F - 62.6 °F 69% 30.03 in 10.0 mi SSE 6.9 mph - N/A   Clear
1:15 AM 73.4 °F - 62.6 °F 69% 30.03 in 10.0 mi SSE 3.5 mph - N/A   Clear
1:35 AM 73.4 °F - 62.6 °F 69% 30.03 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 71.6 °F - 62.6 °F 73% 30.03 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 71.6 °F - 62.6 °F 73% 30.03 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 71.6 °F - 62.6 °F 73% 30.03 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 71.6 °F - 62.6 °F 73% 30.03 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 71.6 °F - 62.6 °F 73% 30.03 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 68.0 °F - 62.6 °F 83% 30.03 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:55 AM 69.8 °F - 62.6 °F 78% 30.03 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 69.8 °F - 62.6 °F 78% 30.03 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 69.8 °F - 62.6 °F 78% 30.03 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 69.8 °F - 62.6 °F 78% 30.03 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:35 AM 69.8 °F - 62.6 °F 78% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:55 AM 69.8 °F - 62.6 °F 78% 30.05 in 10.0 mi SE 4.6 mph - N/A   Clear
6:15 AM 71.6 °F - 60.8 °F 69% 30.04 in 10.0 mi SE 8.1 mph - N/A   Clear
6:35 AM 71.6 °F - 62.6 °F 73% 30.05 in 10.0 mi SE 4.6 mph - N/A   Clear
6:55 AM 71.6 °F - 62.6 °F 73% 30.06 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 71.6 °F - 62.6 °F 73% 30.06 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 73.4 °F - 62.6 °F 69% 30.06 in 10.0 mi South 4.6 mph - N/A   Clear
7:55 AM 73.4 °F - 62.6 °F 69% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:15 AM 73.4 °F - 62.6 °F 69% 30.08 in 10.0 mi Calm Calm - N/A   Clear
8:35 AM 75.2 °F - 62.6 °F 65% 30.08 in 10.0 mi Calm Calm - N/A   Clear
8:55 AM 75.2 °F - 64.4 °F 69% 30.09 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 77.0 °F - 64.4 °F 65% 30.09 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 80.6 °F 82.3 °F 64.4 °F 58% 30.08 in 10.0 mi SW 3.5 mph - N/A   Clear
9:55 AM 80.6 °F 81.8 °F 62.6 °F 54% 30.08 in 10.0 mi SW 6.9 mph - N/A   Clear
10:15 AM 82.4 °F 83.4 °F 62.6 °F 51% 30.08 in 10.0 mi WSW 6.9 mph - N/A   Clear
10:35 AM 82.4 °F 83.4 °F 62.6 °F 51% 30.08 in 10.0 mi SW 6.9 mph - N/A   Clear
10:55 AM 82.4 °F 83.4 °F 62.6 °F 51% 30.07 in 10.0 mi WSW 5.8 mph - N/A   Clear
11:15 AM 84.2 °F 85.0 °F 62.6 °F 48% 30.07 in 10.0 mi SW 9.2 mph - N/A   Clear
11:35 AM 84.2 °F 85.0 °F 62.6 °F 48% 30.07 in 10.0 mi SSW 6.9 mph - N/A   Clear
11:55 AM 84.2 °F 85.0 °F 62.6 °F 48% 30.07 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
12:15 PM 86.0 °F 86.6 °F 62.6 °F 45% 30.07 in 10.0 mi SW 13.8 mph - N/A   Partly Cloudy
12:35 PM 86.0 °F 86.6 °F 62.6 °F 45% 30.06 in 10.0 mi West 4.6 mph - N/A   Clear
12:55 PM 86.0 °F 86.6 °F 62.6 °F 45% 30.06 in 10.0 mi WSW 6.9 mph - N/A   Partly Cloudy
1:15 PM 86.0 °F 86.6 °F 62.6 °F 45% 30.05 in 10.0 mi SW 11.5 mph - N/A   Partly Cloudy
1:35 PM 86.0 °F 86.6 °F 62.6 °F 45% 30.04 in 10.0 mi SW 8.1 mph - N/A   Clear
1:55 PM 86.0 °F 86.6 °F 62.6 °F 45% 30.04 in 10.0 mi SSW 12.7 mph - N/A   Partly Cloudy
2:15 PM 84.2 °F 85.0 °F 62.6 °F 48% 30.04 in 10.0 mi WSW 5.8 mph - N/A   Scattered Clouds
2:35 PM 86.0 °F 86.6 °F 62.6 °F 45% 30.03 in 10.0 mi WSW 5.8 mph - N/A Thunderstorm Partly Cloudy
2:55 PM 84.2 °F 83.8 °F 59.0 °F 42% 30.03 in 10.0 mi WSW 6.9 mph - N/A Thunderstorm Clear
3:15 PM 84.2 °F 84.4 °F 60.8 °F 45% 30.04 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
3:35 PM 80.6 °F 82.3 °F 64.4 °F 58% 30.04 in 10.0 mi South 8.1 mph - N/A Rain , Thunderstorm Light Rain
3:55 PM 75.2 °F - 64.4 °F 69% 30.06 in 10.0 mi South 11.5 mph - N/A Thunderstorm Mostly Cloudy
4:15 PM 75.2 °F - 64.4 °F 69% 30.05 in 10.0 mi SSE 5.8 mph - N/A   Partly Cloudy
4:35 PM 75.2 °F - 62.6 °F 65% 30.06 in 10.0 mi South 11.5 mph 18.4 mph N/A Thunderstorm Scattered Clouds
4:55 PM 73.4 °F - 64.4 °F 73% 30.06 in 10.0 mi South 13.8 mph - N/A Rain , Thunderstorm Light Rain
5:15 PM 71.6 °F - 64.4 °F 78% 30.04 in 10.0 mi SSE 6.9 mph - N/A   Partly Cloudy
5:35 PM 73.4 °F - 64.4 °F 73% 30.05 in 10.0 mi SSE 4.6 mph - N/A   Clear
5:55 PM 75.2 °F - 64.4 °F 69% 30.03 in 10.0 mi South 8.1 mph - N/A Thunderstorm Thunderstorm
6:15 PM 75.2 °F - 64.4 °F 69% 30.02 in 10.0 mi SSE 8.1 mph - N/A   Clear
6:35 PM 75.2 °F - 60.8 °F 61% 30.02 in 10.0 mi South 12.7 mph 20.7 mph N/A   Clear
6:55 PM 73.4 °F - 59.0 °F 61% 30.03 in 10.0 mi SSW 6.9 mph - N/A Thunderstorm Clear
7:15 PM 73.4 °F - 59.0 °F 61% 30.06 in 10.0 mi NW 10.4 mph 16.1 mph N/A Thunderstorm Scattered Clouds
7:35 PM 73.4 °F - 59.0 °F 61% 30.06 in 10.0 mi NNE 4.6 mph - N/A Thunderstorm Thunderstorm
8:15 PM 71.6 °F - 64.4 °F 78% 30.05 in 10.0 mi NW 10.4 mph - N/A Rain Light Rain
8:35 PM 68.0 °F - 66.2 °F 94% 30.05 in 9.0 mi Calm Calm - N/A Rain Light Rain
8:55 PM 68.0 °F - 66.2 °F 94% 30.06 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:15 PM 68.0 °F - 66.2 °F 94% 30.07 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:35 PM 68.0 °F - 66.2 °F 94% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:55 PM 68.0 °F - 66.2 °F 94% 30.09 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:15 PM 66.2 °F - 66.2 °F 100% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:35 PM 66.2 °F - 66.2 °F 100% 30.11 in 10.0 mi NNW 4.6 mph - N/A   Overcast
10:55 PM 66.2 °F - 66.2 °F 100% 30.11 in 10.0 mi North 8.1 mph - N/A   Overcast
11:15 PM 68.0 °F - 62.6 °F 83% 30.11 in 10.0 mi NNW 6.9 mph - N/A   Overcast
11:35 PM 66.2 °F - 62.6 °F 88% 30.10 in 10.0 mi NW 5.8 mph - N/A   Overcast
11:55 PM 66.2 °F - 62.6 °F 88% 30.11 in 10.0 mi NW 5.8 mph - N/A   Overcast