History for St. Louis, MO

Saturday, May 12, 2012 — View Current Conditions
Saturday, May 12, 2012
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Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 70 °F 66 °F  
Max Temperature 80 °F 75 °F 92 °F (1956)
Min Temperature 59 °F 56 °F 39 °F (1960)
Degree Days
Heating Degree Days 0 3  
Month to date heating degree days 4 43  
Since 1 July heating degree days 3291 4499  
Cooling Degree Days 5 3  
Month to date cooling degree days 94 30  
Year to date cooling degree days 231 76  
Growing Degree Days 20 (Base 50)    
Moisture
Dew Point 48 °F    
Average Humidity 51    
Maximum Humidity 72    
Minimum Humidity 29    
Precipitation
Precipitation 0.00 in 0.15 in 2.18 in (2002)
Month to date precipitation 1.50 1.74  
Year to date precipitation 16.48 13.39  
Snow
Snow 0.00 in 0.00 in 0.00 in (2011)
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 6.3 17.7  
Snow Depth 0.00 in    
Sea Level Pressure
Sea Level Pressure 30.15 in    
Wind
Wind Speed 3 mph (ESE)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Daily Graph
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Radar Archive
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Local Photos
Tea For Two
These two went from flower to flower as a pair. Butterfly or moth? A bit of searching shows butterflies have clubs on their antennae, like these, and m...
Visit WunderPhotos
Astronomy
May. 22, 2013 Rise Set
Actual Time 5:51 AM CDT 8:04 PM CDT
Civil Twilight 5:21 AM CDT 8:34 PM CDT
Nautical Twilight 4:45 AM CDT 9:10 PM CDT
Astronomical Twilight 4:05 AM CDT 9:50 PM CDT
Moon 1:19 AM CDT (5/12) 12:29 PM CDT (5/12)
Length Of Visible Light 15h 12m
Length of Day
14h 13m
Waning Gibbous, 52% of the Moon is Illuminated
May 12
Waning Gibbous
May 12
Last Quarter
May 20
New
May 28
First Quarter
Jun 4
Full
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Hourly Observations
Time (CDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 66.9 °F 46.0 °F 47% 30.13 in 10.0 mi South 4.6 mph - N/A   Overcast
1:51 AM 63.0 °F 48.0 °F 58% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:51 AM 63.0 °F 48.9 °F 60% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:51 AM 62.6 °F 50.0 °F 63% 30.16 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:51 AM 60.8 °F 51.8 °F 72% 30.17 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:51 AM 60.1 °F 51.1 °F 72% 30.17 in 10.0 mi East 5.8 mph - N/A   Mostly Cloudy
6:51 AM 61.0 °F 51.1 °F 70% 30.19 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:51 AM 64.0 °F 53.1 °F 67% 30.20 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:51 AM 68.0 °F 48.9 °F 50% 30.20 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
9:51 AM 71.1 °F 46.9 °F 42% 30.19 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
10:51 AM 73.0 °F 46.9 °F 39% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
11:51 AM 75.2 °F 46.4 °F 36% 30.20 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
12:51 PM 77.0 °F 46.9 °F 34% 30.16 in 10.0 mi SE 9.2 mph - N/A   Mostly Cloudy
1:51 PM 77.0 °F 46.0 °F 33% 30.15 in 10.0 mi ESE 6.9 mph - N/A   Mostly Cloudy
2:51 PM 77.0 °F 43.0 °F 30% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:51 PM 79.0 °F 44.1 °F 29% 30.13 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
4:51 PM 78.1 °F 46.9 °F 33% 30.12 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
5:51 PM 75.9 °F 48.0 °F 37% 30.12 in 10.0 mi ENE 5.8 mph - N/A   Mostly Cloudy
6:51 PM 75.0 °F 48.0 °F 38% 30.12 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
7:51 PM 72.0 °F 48.9 °F 44% 30.13 in 10.0 mi East 6.9 mph - N/A   Mostly Cloudy
8:51 PM 71.1 °F 48.0 °F 44% 30.15 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
9:51 PM 68.0 °F 50.0 °F 52% 30.16 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
10:51 PM 66.9 °F 50.0 °F 54% 30.15 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:51 PM 64.0 °F 51.1 °F 63% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
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