Grand Rapids, MI

12:06 AM EST on December 14, 2017 (GMT -0500)
Gerald R. Ford International

Weather History for KGRR - September, 2012

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Thursday, September 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 61 °F 61 °F  
Max Temperature 69 °F 71 °F 90 °F (1931)
Min Temperature 52 °F 51 °F 33 °F (1956)
Degree Days  
Heating Degree Days 4 5  
Month to date heating degree days 45 59  
Since 1 July heating degree days 54 79  
Cooling Degree Days 0 2  
Month to date cooling degree days 73 57  
Year to date cooling degree days 1035 682  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 55    
Maximum Humidity 72    
Minimum Humidity 37    
Precipitation  
Precipitation 0.11 in 0.16 in 1.75 in (1957)
Month to date precipitation 1.63 2.85  
Year to date precipitation 23.85 27.57  
Snow  
Snow 0.00 in 0.00 in 0.00 in ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Since 1 September snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 11 mph (SW)    
Max Wind Speed 22 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Sep. 20, 2012 Rise Set
Actual Time 7:27 AM EDT 7:42 PM EDT
Civil Twilight 6:59 AM EDT 8:10 PM EDT
Nautical Twilight 6:26 AM EDT 8:43 PM EDT
Astronomical Twilight 5:52 AM EDT 9:17 PM EDT
Moon 12:53 PM EDT (9/20) 10:34 PM EDT (9/20)
Length of Visible Light 13h 10m
Length of Day
12h 14m
Waxing Crescent, 26% of the Moon is Illuminated
Sep 20
Waxing Crescent
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 62.1 °F 41.0 °F 46% 29.88 in 10.0 mi SSW 15.0 mph 24.2 mph 0.00 in Rain Light Rain
1:18 AM 57.2 °F 46.4 °F 67% 29.87 in 7.0 mi SSW 10.4 mph 21.9 mph 0.07 in Rain , Thunderstorm Light Rain
1:33 AM 57.2 °F 44.6 °F 63% 29.87 in 8.0 mi SSW 11.5 mph 20.7 mph 0.08 in Rain Light Rain
1:53 AM 57.0 °F 46.0 °F 67% 29.88 in 9.0 mi SW 8.1 mph - 0.09 in Rain Light Rain
2:01 AM 57.2 °F 46.4 °F 67% 29.87 in 10.0 mi SSW 10.4 mph - 0.00 in Rain , Thunderstorm Light Rain
2:15 AM 55.4 °F 46.4 °F 72% 29.86 in 10.0 mi South 10.4 mph - 0.00 in Rain Light Rain
2:53 AM 57.0 °F 46.0 °F 67% 29.85 in 10.0 mi South 13.8 mph 19.6 mph 0.00 in   Mostly Cloudy
3:53 AM 59.0 °F 44.1 °F 58% 29.83 in 10.0 mi South 13.8 mph - N/A   Overcast
4:18 AM 57.2 °F 46.4 °F 67% 29.83 in 10.0 mi South 12.7 mph - 0.02 in Rain , Thunderstorm Light Rain
4:45 AM 57.2 °F 46.4 °F 67% 29.82 in 10.0 mi South 12.7 mph - 0.02 in   Mostly Cloudy
4:53 AM 55.9 °F 46.9 °F 72% 29.82 in 10.0 mi South 10.4 mph - 0.02 in   Mostly Cloudy
5:53 AM 57.9 °F 46.0 °F 65% 29.82 in 10.0 mi South 13.8 mph - N/A   Overcast
6:53 AM 57.9 °F 46.0 °F 65% 29.83 in 10.0 mi SW 11.5 mph - N/A   Mostly Cloudy
7:53 AM 57.0 °F 46.9 °F 69% 29.85 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
8:53 AM 59.0 °F 48.9 °F 69% 29.85 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
9:53 AM 63.0 °F 51.1 °F 65% 29.86 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds
10:53 AM 64.9 °F 48.9 °F 56% 29.87 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
11:53 AM 66.0 °F 43.0 °F 43% 29.87 in 10.0 mi WNW 15.0 mph 19.6 mph N/A   Mostly Cloudy
12:53 PM 68.0 °F 42.1 °F 39% 29.87 in 10.0 mi West 16.1 mph - N/A   Mostly Cloudy
1:53 PM 69.1 °F 42.1 °F 38% 29.87 in 10.0 mi WSW 17.3 mph 23.0 mph N/A   Mostly Cloudy
2:53 PM 66.0 °F 41.0 °F 40% 29.87 in 10.0 mi West 15.0 mph 25.3 mph N/A   Mostly Cloudy
3:53 PM 64.9 °F 39.0 °F 39% 29.88 in 10.0 mi WSW 17.3 mph - N/A   Mostly Cloudy
4:53 PM 64.9 °F 39.9 °F 40% 29.88 in 10.0 mi WSW 17.3 mph 24.2 mph N/A   Mostly Cloudy
5:53 PM 64.0 °F 42.1 °F 45% 29.88 in 10.0 mi WSW 13.8 mph 20.7 mph N/A   Mostly Cloudy
6:53 PM 64.0 °F 42.1 °F 45% 29.88 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
7:53 PM 60.1 °F 43.0 °F 53% 29.88 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
8:53 PM 55.9 °F 44.1 °F 64% 29.88 in 10.0 mi South 6.9 mph - N/A   Scattered Clouds
9:53 PM 57.9 °F 45.0 °F 62% 29.88 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
10:53 PM 57.0 °F 44.1 °F 62% 29.89 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
11:53 PM 54.0 °F 44.1 °F 69% 29.89 in 10.0 mi WSW 4.6 mph - N/A   Scattered Clouds