Weather History for Grand Rapids, MI

Change the Weather History Date:

Monday, August 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 65 °F 71 °F  
Max Temperature 76 °F 80 °F 97 °F (1947)
Min Temperature 53 °F 61 °F 43 °F (1992)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 9 0  
Since 1 June heating degree days 37 51  
Since 1 July heating degree days 9 6  
Cooling Degree Days 0 6  
Month to date cooling degree days 110 135  
Year to date cooling degree days 875 566  
Since 1 June cooling degree days 767 519  
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 69    
Maximum Humidity 100    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in 0.10 in 2.34 in (2007)
Month to date precipitation 3.12 2.31  
Year to date precipitation 22.00 23.44  
Snow  
Snow 0.00 in 0.00 in 0.00 in ()
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 3 mph (NE)    
Max Wind Speed 9 mph    
Max Gust Speed 12 mph    
Visibility 9 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Aug. 20, 2012 Rise Set
Actual Time 6:54 AM EDT 8:35 PM EDT
Civil Twilight 6:24 AM EDT 9:05 PM EDT
Nautical Twilight 5:47 AM EDT 9:42 PM EDT
Astronomical Twilight 5:08 AM EDT 10:21 PM EDT
Moon 10:22 AM EDT (8/20) 9:50 PM EDT (8/20)
Length of Visible Light 14h 41m
Length of Day
13h 41m
Waxing Crescent, 11% of the Moon is Illuminated
Aug 20
Waxing Crescent
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 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 59.0 °F 55.9 °F 90% 29.95 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:53 AM 59.0 °F 57.0 °F 93% 29.96 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:53 AM 57.0 °F 55.0 °F 93% 29.95 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
3:53 AM 55.9 °F 54.0 °F 93% 29.95 in 10.0 mi Calm Calm - N/A   Clear
4:53 AM 55.9 °F 54.0 °F 93% 29.97 in 6.0 mi Calm Calm - N/A   Clear
5:08 AM 55.4 °F 53.6 °F 94% 29.97 in 1.8 mi Calm Calm - N/A   Clear
5:13 AM 55.4 °F 53.6 °F 94% 29.96 in 7.0 mi Calm Calm - N/A Fog Patches of Fog
5:33 AM 53.6 °F 53.6 °F 100% 29.96 in 3.0 mi Calm Calm - N/A   Partly Cloudy
5:53 AM 54.0 °F 53.1 °F 97% 29.97 in 5.0 mi Calm Calm - N/A   Partly Cloudy
6:08 AM 53.6 °F 51.8 °F 94% 29.97 in 6.0 mi Calm Calm - N/A   Partly Cloudy
6:12 AM 53.6 °F 51.8 °F 94% 29.97 in 1.8 mi Calm Calm - N/A   Partly Cloudy
6:21 AM 53.6 °F 51.8 °F 94% 29.97 in 6.0 mi Calm Calm - N/A   Partly Cloudy
6:43 AM 53.6 °F 51.8 °F 94% 29.98 in 6.0 mi Calm Calm - N/A   Partly Cloudy
6:53 AM 53.1 °F 52.0 °F 96% 29.98 in 8.0 mi Calm Calm - N/A   Partly Cloudy
7:53 AM 54.0 °F 53.1 °F 97% 30.00 in 10.0 mi Calm Calm - N/A Fog Patches of Fog
8:53 AM 59.0 °F 55.0 °F 87% 30.01 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:53 AM 64.9 °F 55.0 °F 70% 30.00 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:53 AM 68.0 °F 48.0 °F 49% 30.00 in 10.0 mi East 6.9 mph - N/A   Partly Cloudy
11:53 AM 70.0 °F 48.9 °F 47% 29.99 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
12:53 PM 70.0 °F 50.0 °F 49% 29.99 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds
1:53 PM 71.1 °F 46.9 °F 42% 29.99 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:53 PM 75.9 °F 51.1 °F 42% 29.97 in 10.0 mi NNE 5.8 mph - N/A   Mostly Cloudy
3:53 PM 73.9 °F 46.9 °F 38% 29.96 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
4:53 PM 75.0 °F 48.0 °F 38% 29.95 in 10.0 mi ENE 3.5 mph - N/A   Scattered Clouds
5:53 PM 73.9 °F 48.9 °F 41% 29.96 in 10.0 mi East 5.8 mph - N/A   Scattered Clouds
6:53 PM 73.0 °F 48.9 °F 42% 29.95 in 10.0 mi NNE 4.6 mph - N/A   Partly Cloudy
7:53 PM 70.0 °F 50.0 °F 49% 29.96 in 10.0 mi ENE 3.5 mph - N/A   Scattered Clouds
8:53 PM 69.1 °F 52.0 °F 54% 29.97 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:53 PM 66.0 °F 52.0 °F 60% 29.98 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
10:53 PM 64.9 °F 52.0 °F 63% 29.99 in 10.0 mi NW 5.8 mph - N/A   Clear
11:53 PM 63.0 °F 53.1 °F 70% 30.01 in 10.0 mi NNW 3.5 mph - N/A   Partly Cloudy