Weather History for Grand Rapids, MI

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Sunday, August 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 69 °F 71 °F  
Max Temperature 82 °F 81 °F 97 °F (1955)
Min Temperature 55 °F 61 °F 41 °F (1943)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 15 0  
Since 1 June heating degree days 66 51  
Since 1 July heating degree days 26 6  
Cooling Degree Days 4 6  
Month to date cooling degree days 56 123  
Year to date cooling degree days 545 554  
Since 1 June cooling degree days 463 507  
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 68    
Maximum Humidity 93    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in 0.12 in 1.73 in (1990)
Month to date precipitation 0.90 2.10  
Year to date precipitation 31.32 23.23  
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 30.19 in    
Wind  
Wind Speed 2 mph (SE)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 18, 2013 Rise Set
Actual Time 6:51 AM EDT 8:39 PM EDT
Civil Twilight 6:21 AM EDT 9:09 PM EDT
Nautical Twilight 5:44 AM EDT 9:46 PM EDT
Astronomical Twilight 5:04 AM EDT 10:25 PM EDT
Moon 6:46 PM EDT (8/18) 3:58 AM EDT (8/18)
Length of Visible Light 14h 47m
Length of Day
13h 47m
Waxing Gibbous, 92% of the Moon is Illuminated
Aug 18
Waxing Gibbous
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 62.1 °F - 55.0 °F 78% 30.21 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 60.1 °F - 55.0 °F 83% 30.20 in 10.0 mi Calm Calm - N/A   Clear
2:53 AM 59.0 °F - 55.0 °F 87% 30.21 in 8.0 mi Calm Calm - N/A   Clear
3:53 AM 55.9 °F - 53.1 °F 90% 30.21 in 9.0 mi Calm Calm - N/A   Clear
4:53 AM 57.0 °F - 53.1 °F 87% 30.21 in 9.0 mi Calm Calm - N/A   Clear
5:53 AM 57.0 °F - 53.1 °F 87% 30.21 in 9.0 mi Calm Calm - N/A   Clear
6:53 AM 55.9 °F - 52.0 °F 87% 30.22 in 7.0 mi Calm Calm - N/A   Partly Cloudy
7:53 AM 57.0 °F - 53.1 °F 87% 30.24 in 7.0 mi Calm Calm - N/A   Partly Cloudy
8:53 AM 63.0 °F - 55.9 °F 78% 30.25 in 10.0 mi Calm Calm - N/A   Clear
9:53 AM 70.0 °F - 57.9 °F 65% 30.24 in 10.0 mi Calm Calm - N/A   Clear
10:53 AM 75.0 °F - 57.0 °F 53% 30.24 in 10.0 mi East 3.5 mph - N/A   Clear
11:53 AM 75.9 °F - 57.0 °F 52% 30.23 in 10.0 mi East 8.1 mph - N/A   Partly Cloudy
12:53 PM 75.0 °F - 55.0 °F 50% 30.22 in 10.0 mi SSE 4.6 mph - N/A   Scattered Clouds
1:53 PM 79.0 °F - 54.0 °F 42% 30.20 in 10.0 mi East 4.6 mph - N/A   Scattered Clouds
2:53 PM 79.0 °F - 54.0 °F 42% 30.18 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:53 PM 81.0 °F 80.7 °F 55.0 °F 41% 30.16 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
4:53 PM 81.0 °F 80.7 °F 55.0 °F 41% 30.14 in 10.0 mi East 8.1 mph - N/A   Partly Cloudy
5:53 PM 80.1 °F 80.2 °F 55.9 °F 43% 30.13 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
6:53 PM 80.1 °F 80.2 °F 55.9 °F 43% 30.13 in 10.0 mi ESE 4.6 mph - N/A   Partly Cloudy
7:53 PM 77.0 °F - 57.9 °F 52% 30.13 in 10.0 mi SE 4.6 mph - N/A   Partly Cloudy
8:53 PM 72.0 °F - 59.0 °F 64% 30.13 in 10.0 mi SSE 3.5 mph - N/A   Scattered Clouds
9:53 PM 71.1 °F - 57.0 °F 61% 30.14 in 10.0 mi West 5.8 mph - N/A   Clear
10:53 PM 69.1 °F - 55.9 °F 63% 30.13 in 10.0 mi Calm Calm - N/A   Clear
11:53 PM 66.0 °F - 57.0 °F 73% 30.14 in 10.0 mi Calm Calm - N/A   Clear