Weather History for Washington, MO

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Sunday, January 20, 2013

  Actual Average (KSTL) Record (KSTL)
Temperature  
Mean Temperature 1 °C 0 °C  
Max Temperature 7 °C 4 °C 22 °C (1906)
Min Temperature -4 °C -4 °C -27 °C (1985)
Degree Days  
Heating Degree Days 31 33  
Month to date heating degree days 668  
Since 1 July heating degree days 2433  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point -10 °C    
Average Humidity 49    
Maximum Humidity 74    
Minimum Humidity 30    
Precipitation  
Precipitation 0.00 mm 2.03 mm 4.14 mm (1894)
Month to date precipitation 1.59  
Year to date precipitation 1.59  
Snow  
Snow 0.00 cm 0.51 cm 14.48 cm (2011)
Month to date snowfall 3.6  
Since 1 July snowfall 8.7  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 1025 hPa    
Wind  
Wind Speed 14 km/h (NNW)    
Max Wind Speed 23 km/h    
Max Gust Speed 35 km/h    
Visibility 16 kilometers    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 20, 2013 Rise Set
Actual Time 7:17 AM CST 5:12 PM CST
Civil Twilight 6:49 AM CST 5:41 PM CST
Nautical Twilight 6:16 AM CST 6:13 PM CST
Astronomical Twilight 5:45 AM CST 6:45 PM CST
Moon 12:13 PM CST (1/20) 1:50 AM CST (1/20)
Length of Visible Light 10h 52m
Length of Day
9h 54m
Waxing Gibbous, 66% of the Moon is Illuminated
Jan 20
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
First Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 7.0 °C 3.6 °C -2.0 °C 53% 1020.9 hPa 16.1 km NW 20.4 km/h / 5.7 m/s 33.3 km/h / 9.3 m/s N/A   Clear
12:35 AM 7.0 °C 3.6 °C -1.0 °C 57% 1021.2 hPa 16.1 km NW 20.4 km/h / 5.7 m/s - N/A   Clear
12:55 AM 7.0 °C 3.6 °C -1.0 °C 57% 1021.6 hPa 16.1 km NNW 20.4 km/h / 5.7 m/s - N/A   Clear
1:15 AM 6.0 °C 2.1 °C -1.0 °C 61% 1021.9 hPa 16.1 km NNW 22.2 km/h / 6.2 m/s 35.2 km/h / 9.8 m/s N/A   Clear
1:35 AM 5.0 °C 1.0 °C -2.0 °C 61% 1022.2 hPa 16.1 km NNW 20.4 km/h / 5.7 m/s 31.5 km/h / 8.7 m/s N/A   Clear
2:15 AM 5.0 °C 1.0 °C -2.0 °C 61% 1022.9 hPa 16.1 km NNW 20.4 km/h / 5.7 m/s 27.8 km/h / 7.7 m/s N/A   Clear
2:35 AM 4.0 °C 0.3 °C -2.0 °C 65% 1022.9 hPa 16.1 km NW 16.7 km/h / 4.6 m/s - N/A   Clear
2:55 AM 4.0 °C 0.3 °C -2.0 °C 65% 1023.2 hPa 16.1 km NNW 16.7 km/h / 4.6 m/s - N/A   Clear
3:15 AM 3.0 °C -1.0 °C -2.0 °C 70% 1023.6 hPa 16.1 km NNW 16.7 km/h / 4.6 m/s - N/A   Clear
3:35 AM 3.0 °C -1.5 °C -4.0 °C 60% 1023.9 hPa 16.1 km NNW 20.4 km/h / 5.7 m/s - N/A   Clear
3:55 AM 3.0 °C -1.0 °C -5.0 °C 56% 1023.9 hPa 16.1 km NNW 16.7 km/h / 4.6 m/s - N/A   Clear
4:15 AM 2.0 °C -2.5 °C -5.0 °C 60% 1023.9 hPa 16.1 km NNW 18.5 km/h / 5.1 m/s - N/A   Clear
4:35 AM 2.0 °C -2.7 °C -9.0 °C 44% 1024.3 hPa 16.1 km NNW 20.4 km/h / 5.7 m/s - N/A   Clear
4:55 AM 1.0 °C -4.0 °C -10.0 °C 44% 1024.6 hPa 16.1 km North 20.4 km/h / 5.7 m/s 29.6 km/h / 8.2 m/s N/A   Clear
5:15 AM 0.0 °C -4.0 °C -9.0 °C 51% 1024.9 hPa 16.1 km NNW 13.0 km/h / 3.6 m/s - N/A   Clear
5:35 AM 0.0 °C -4.4 °C -9.0 °C 51% 1025.3 hPa 16.1 km NNW 14.8 km/h / 4.1 m/s - N/A   Clear
5:55 AM 0.0 °C -4.0 °C -6.0 °C 64% 1025.6 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Clear
6:15 AM 0.0 °C -2.5 °C -5.0 °C 69% 1025.6 hPa 16.1 km North 7.4 km/h / 2.1 m/s - N/A   Clear
6:35 AM -1.0 °C -5.6 °C -6.0 °C 69% 1025.6 hPa 16.1 km North 14.8 km/h / 4.1 m/s - N/A   Clear
6:55 AM -2.0 °C -4.9 °C -6.0 °C 74% 1026.0 hPa 16.1 km North 7.4 km/h / 2.1 m/s - N/A   Clear
7:15 AM -2.0 °C -4.9 °C -6.0 °C 74% 1026.0 hPa 16.1 km NNW 7.4 km/h / 2.1 m/s - N/A   Clear
7:35 AM -2.0 °C -5.5 °C -7.0 °C 69% 1026.3 hPa 16.1 km North 9.3 km/h / 2.6 m/s - N/A   Clear
7:55 AM -2.0 °C -6.0 °C -8.0 °C 64% 1026.6 hPa 16.1 km NNW 11.1 km/h / 3.1 m/s - N/A   Clear
8:15 AM -2.0 °C -5.5 °C -8.0 °C 64% 1027.3 hPa 16.1 km NW 9.3 km/h / 2.6 m/s - N/A   Clear
8:35 AM -2.0 °C -7.2 °C -10.0 °C 55% 1027.3 hPa 16.1 km NNW 16.7 km/h / 4.6 m/s - N/A   Clear
8:55 AM -2.0 °C -6.4 °C -10.0 °C 55% 1027.0 hPa 16.1 km NNW 13.0 km/h / 3.6 m/s - N/A   Clear
9:15 AM -2.0 °C -6.4 °C -12.0 °C 47% 1027.0 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Clear
9:35 AM -2.0 °C -6.0 °C -13.0 °C 43% 1027.7 hPa 16.1 km North 11.1 km/h / 3.1 m/s - N/A   Clear
9:55 AM -2.0 °C -4.1 °C -13.0 °C 43% 1027.7 hPa 16.1 km North 5.6 km/h / 1.5 m/s - N/A   Clear
10:15 AM -1.0 °C -4.8 °C -13.0 °C 40% 1027.7 hPa 16.1 km North 11.1 km/h / 3.1 m/s - N/A   Clear
10:35 AM 0.0 °C -3.6 °C -13.0 °C 38% 1027.7 hPa 16.1 km North 11.1 km/h / 3.1 m/s - N/A   Clear
10:55 AM 0.0 °C -3.6 °C -14.0 °C 35% 1027.3 hPa 16.1 km North 11.1 km/h / 3.1 m/s - N/A   Clear
11:15 AM 0.0 °C - -14.0 °C 35% 1027.0 hPa 16.1 km Calm Calm - N/A   Clear
11:35 AM 0.0 °C - -14.0 °C 35% 1026.6 hPa 16.1 km Calm Calm - N/A   Clear
12:15 PM 0.0 °C -1.8 °C -14.0 °C 35% 1025.3 hPa 16.1 km East 5.6 km/h / 1.5 m/s - N/A   Clear
12:35 PM 1.0 °C -1.4 °C -14.0 °C 32% 1025.3 hPa 16.1 km NW 7.4 km/h / 2.1 m/s - N/A   Clear
12:55 PM 1.0 °C - -14.0 °C 32% 1025.6 hPa 16.1 km Calm Calm - N/A   Clear
1:15 PM 2.0 °C - -13.0 °C 33% 1025.6 hPa 16.1 km Calm Calm - N/A   Clear
1:35 PM 2.0 °C -0.2 °C -14.0 °C 30% 1025.6 hPa 16.1 km West 7.4 km/h / 2.1 m/s - N/A   Clear
1:55 PM 2.0 °C - -13.0 °C 33% 1025.6 hPa 16.1 km Calm Calm - N/A   Clear
2:15 PM 2.0 °C - -14.0 °C 30% 1025.3 hPa 16.1 km Calm Calm - N/A   Clear
2:35 PM 3.0 °C 1.0 °C -13.0 °C 30% 1024.6 hPa 16.1 km NE 7.4 km/h / 2.1 m/s - N/A   Clear
2:55 PM 2.0 °C -1.5 °C -13.0 °C 33% 1024.9 hPa 16.1 km NNE 13.0 km/h / 3.6 m/s - N/A   Clear
3:15 PM 2.0 °C -0.7 °C -13.0 °C 33% 1025.3 hPa 16.1 km North 9.3 km/h / 2.6 m/s - N/A   Clear
3:35 PM 2.0 °C -0.2 °C -12.0 °C 35% 1025.3 hPa 16.1 km North 7.4 km/h / 2.1 m/s - N/A   Clear
3:55 PM 0.0 °C -3.6 °C -13.0 °C 38% 1025.6 hPa 16.1 km North 11.1 km/h / 3.1 m/s - N/A   Clear
4:15 PM 0.0 °C -4.0 °C -13.0 °C 38% 1025.6 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Clear
4:35 PM 0.0 °C -4.4 °C -13.0 °C 38% 1025.6 hPa 16.1 km North 14.8 km/h / 4.1 m/s - N/A   Scattered Clouds
4:55 PM 0.0 °C -4.4 °C -13.0 °C 38% 1025.6 hPa 16.1 km North 14.8 km/h / 4.1 m/s - N/A   Mostly Cloudy
5:15 PM 0.0 °C -3.1 °C -14.0 °C 35% 1025.6 hPa 16.1 km North 9.3 km/h / 2.6 m/s - N/A   Mostly Cloudy
5:35 PM 0.0 °C - -13.0 °C 38% 1025.6 hPa 16.1 km Calm Calm - N/A   Mostly Cloudy
5:55 PM -1.0 °C - -12.0 °C 44% 1025.6 hPa 16.1 km Calm Calm - N/A   Scattered Clouds
6:15 PM -1.0 °C - -12.0 °C 44% 1025.6 hPa 16.1 km Calm Calm - N/A   Clear
6:35 PM -2.0 °C -4.1 °C -12.0 °C 47% 1025.6 hPa 16.1 km North 5.6 km/h / 1.5 m/s - N/A   Clear
6:55 PM -2.0 °C - -12.0 °C 47% 1025.6 hPa 16.1 km Calm Calm - N/A   Clear
7:15 PM -2.0 °C -6.0 °C -12.0 °C 47% 1025.6 hPa 16.1 km North 11.1 km/h / 3.1 m/s - N/A   Mostly Cloudy
7:35 PM -2.0 °C -6.4 °C -12.0 °C 47% 1025.6 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Scattered Clouds
7:55 PM -2.0 °C -6.4 °C -12.0 °C 47% 1026.0 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Mostly Cloudy
8:15 PM -2.0 °C -6.8 °C -12.0 °C 47% 1026.0 hPa 16.1 km North 14.8 km/h / 4.1 m/s 25.9 km/h / 7.2 m/s N/A   Overcast
8:35 PM -3.0 °C -7.2 °C -12.0 °C 51% 1026.0 hPa 16.1 km North 11.1 km/h / 3.1 m/s - N/A   Overcast
8:55 PM -3.0 °C -7.6 °C -12.0 °C 51% 1026.0 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Overcast
9:15 PM -3.0 °C -7.6 °C -12.0 °C 51% 1026.0 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Overcast
9:35 PM -3.0 °C -6.7 °C -12.0 °C 51% 1026.0 hPa 16.1 km North 9.3 km/h / 2.6 m/s - N/A   Overcast
9:55 PM -3.0 °C -7.2 °C -12.0 °C 51% 1026.3 hPa 16.1 km North 11.1 km/h / 3.1 m/s - N/A   Overcast
10:15 PM -3.0 °C -8.0 °C -12.0 °C 51% 1026.3 hPa 16.1 km NNW 14.8 km/h / 4.1 m/s - N/A   Overcast
10:35 PM -3.0 °C -6.7 °C -13.0 °C 47% 1026.3 hPa 16.1 km North 9.3 km/h / 2.6 m/s - N/A   Overcast
10:55 PM -3.0 °C -7.6 °C -12.0 °C 51% 1026.6 hPa 16.1 km North 13.0 km/h / 3.6 m/s - N/A   Overcast
11:15 PM -3.0 °C -8.0 °C -12.0 °C 51% 1026.3 hPa 16.1 km NW 14.8 km/h / 4.1 m/s - N/A   Overcast
11:35 PM -4.0 °C -9.3 °C -13.0 °C 50% 1026.3 hPa 16.1 km NNW 14.8 km/h / 4.1 m/s - N/A   Overcast
11:55 PM -4.0 °C -8.4 °C -12.0 °C 54% 1026.3 hPa 16.1 km NW 11.1 km/h / 3.1 m/s - N/A   Overcast