Weather History for Grand Rapids, MI

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Tuesday, September 25, 2012

  Actual Average Record
Temperature  
Mean Temperature 61 °F 59 °F  
Max Temperature 74 °F 69 °F 90 °F (1920)
Min Temperature 47 °F 49 °F 29 °F (1947)
Degree Days  
Heating Degree Days 4 7  
Month to date heating degree days 96 91  
Since 1 July heating degree days 105 111  
Cooling Degree Days 0 1  
Month to date cooling degree days 73 62  
Year to date cooling degree days 1035 687  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 47 °F    
Average Humidity 67    
Maximum Humidity 86    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in 0.15 in 3.52 in (1961)
Month to date precipitation 1.97 3.60  
Year to date precipitation 24.19 28.32  
Snow  
Snow 0.00 in 0.00 in T in (1942)
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 29.88 in    
Wind  
Wind Speed 8 mph (SSW)    
Max Wind Speed 17 mph    
Max Gust Speed 22 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 25, 2012 Rise Set
Actual Time 7:33 AM EDT 7:33 PM EDT
Civil Twilight 7:04 AM EDT 8:01 PM EDT
Nautical Twilight 6:31 AM EDT 8:34 PM EDT
Astronomical Twilight 5:58 AM EDT 9:07 PM EDT
Moon 5:02 PM EDT (9/25) 2:48 AM EDT (9/25)
Length of Visible Light 12h 56m
Length of Day
11h 59m
Waxing Gibbous, 80% of the Moon is Illuminated
Sep 25
Waxing Gibbous
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 57.0 °F 37.0 °F 47% 29.90 in 10.0 mi SSW 15.0 mph 21.9 mph N/A   Clear
1:53 AM 55.9 °F 37.9 °F 51% 29.90 in 10.0 mi SSW 11.5 mph - N/A   Clear
2:53 AM 55.0 °F 39.0 °F 55% 29.90 in 10.0 mi SSW 10.4 mph - N/A   Clear
3:53 AM 54.0 °F 39.9 °F 59% 29.89 in 10.0 mi SSW 9.2 mph - N/A   Clear
4:53 AM 53.1 °F 41.0 °F 64% 29.89 in 10.0 mi SSW 9.2 mph - N/A   Clear
5:53 AM 53.1 °F 41.0 °F 64% 29.89 in 10.0 mi SSW 11.5 mph - N/A   Clear
6:53 AM 51.1 °F 41.0 °F 68% 29.87 in 10.0 mi South 5.8 mph - N/A   Partly Cloudy
7:53 AM 48.9 °F 41.0 °F 74% 29.89 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:53 AM 54.0 °F 43.0 °F 66% 29.93 in 10.0 mi SSW 11.5 mph - N/A   Mostly Cloudy
9:53 AM 60.1 °F 45.0 °F 57% 29.90 in 10.0 mi SW 11.5 mph 17.3 mph N/A   Mostly Cloudy
10:53 AM 62.1 °F 48.0 °F 60% 29.91 in 10.0 mi SW 12.7 mph - N/A   Mostly Cloudy
11:53 AM 64.9 °F 50.0 °F 58% 29.90 in 10.0 mi WSW 12.7 mph - N/A   Mostly Cloudy
12:53 PM 69.1 °F 51.1 °F 53% 29.87 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
1:53 PM 71.1 °F 51.1 °F 49% 29.86 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
2:53 PM 73.4 °F 51.8 °F 47% 29.84 in 10.0 mi SW 10.4 mph - N/A   Scattered Clouds
3:53 PM 72.0 °F 52.0 °F 49% 29.83 in 10.0 mi SSW 11.5 mph 17.3 mph N/A   Mostly Cloudy
4:53 PM 71.1 °F 52.0 °F 51% 29.84 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
5:53 PM 70.0 °F 52.0 °F 53% 29.85 in 10.0 mi SSW 12.7 mph - N/A   Scattered Clouds
6:53 PM 68.0 °F 51.8 °F 56% 29.85 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
7:53 PM 63.0 °F 52.0 °F 67% 29.86 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
8:53 PM 60.1 °F 52.0 °F 75% 29.86 in 10.0 mi South 5.8 mph - N/A   Clear
9:53 PM 57.0 °F 52.0 °F 83% 29.87 in 10.0 mi South 6.9 mph - N/A   Clear
10:53 PM 55.9 °F 51.1 °F 84% 29.87 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 55.9 °F 52.0 °F 87% 29.88 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy