Weather History for Portland, ME

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Thursday, December 1, 2011

  Actual Average Record
Temperature  
Mean Temperature 39 °F 34 °F  
Max Temperature 48 °F 42 °F 66 °F (2001)
Min Temperature 29 °F 26 °F 9 °F (1989)
Degree Days  
Heating Degree Days 26 31  
Month to date heating degree days 26 31  
Since 1 July heating degree days 1150 1522  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 454 359  
Moisture  
Dew Point 25 °F    
Average Humidity 61    
Maximum Humidity 85    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in 0.14 in 1.46 in (1917)
Month to date precipitation 0.00 0.14  
Year to date precipitation 48.26 43.37  
Snow  
Snow 0.00 in 0.20 in 3.00 in (1992)
Month to date snowfall 0.0 0.2  
Since 1 July snowfall 6.2 2.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 7 mph (NNW)    
Max Wind Speed 16 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

Dec. 01, 2011 Rise Set
Actual Time 6:54 AM EST 4:05 PM EST
Civil Twilight 6:22 AM EST 4:37 PM EST
Nautical Twilight 5:46 AM EST 5:13 PM EST
Astronomical Twilight 5:12 AM EST 5:48 PM EST
Moon 11:30 AM EST (12/1) 11:09 PM EST (12/1)
Length of Visible Light 10h 15m
Length of Day
9h 11m
Waxing Crescent, 43% of the Moon is Illuminated
Dec 1
Waxing Crescent
Dec 2
First Quarter
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 37.9 °F - 30.0 °F 73% 29.81 in 10.0 mi Calm Calm - N/A   Clear
1:51 AM 37.0 °F - 30.9 °F 79% 29.83 in 10.0 mi Calm Calm - N/A   Clear
2:51 AM 32.0 °F 27.5 °F 28.0 °F 85% 29.86 in 10.0 mi West 4.6 mph - N/A   Clear
3:51 AM 36.0 °F 28.0 °F 30.9 °F 82% 29.89 in 10.0 mi NNW 11.5 mph - N/A   Mostly Cloudy
4:51 AM 37.0 °F 31.0 °F 28.9 °F 73% 29.93 in 10.0 mi NNW 8.1 mph - N/A   Clear
5:51 AM 37.0 °F 32.4 °F 28.0 °F 70% 29.97 in 10.0 mi NNW 5.8 mph - N/A   Clear
6:51 AM 37.4 °F 30.3 °F 26.6 °F 65% 30.00 in 10.0 mi NNW 10.4 mph - N/A   Clear
7:51 AM 39.0 °F 33.4 °F 28.0 °F 65% 30.04 in 10.0 mi NNW 8.1 mph - N/A   Clear
8:51 AM 41.0 °F 35.2 °F 28.9 °F 62% 30.07 in 10.0 mi NNW 9.2 mph - N/A   Clear
9:51 AM 43.0 °F 36.8 °F 28.9 °F 58% 30.09 in 10.0 mi NNW 11.5 mph - N/A   Clear
10:51 AM 45.0 °F 40.1 °F 28.9 °F 53% 30.09 in 10.0 mi NNW 9.2 mph - N/A   Clear
11:51 AM 46.9 °F - 28.9 °F 50% 30.08 in 10.0 mi NW 10.4 mph 18.4 mph N/A   Clear
12:51 PM 48.0 °F - 27.0 °F 44% 30.08 in 10.0 mi NNW 11.5 mph 16.1 mph N/A   Clear
1:51 PM 48.0 °F - 25.0 °F 41% 30.09 in 10.0 mi NW 8.1 mph - N/A   Clear
2:51 PM 46.9 °F - 23.0 °F 39% 30.11 in 10.0 mi NNW 12.7 mph - N/A   Clear
3:51 PM 44.1 °F 37.7 °F 19.0 °F 37% 30.14 in 10.0 mi NNW 12.7 mph - N/A   Clear
4:51 PM 41.0 °F 38.0 °F 19.9 °F 43% 30.17 in 10.0 mi NNW 4.6 mph - N/A   Clear
5:51 PM 39.9 °F 36.7 °F 21.0 °F 47% 30.18 in 10.0 mi North 4.6 mph - N/A   Clear
6:51 PM 37.0 °F 32.4 °F 21.0 °F 52% 30.21 in 10.0 mi NNW 5.8 mph - N/A   Clear
7:51 PM 35.1 °F 30.1 °F 19.9 °F 54% 30.23 in 10.0 mi NNW 5.8 mph - N/A   Clear
8:51 PM 33.8 °F 29.6 °F 19.4 °F 56% 30.24 in 10.0 mi NNW 4.6 mph - N/A   Clear
9:51 PM 35.6 °F 32.8 °F 19.4 °F 52% 30.25 in 10.0 mi NNW 3.5 mph - N/A   Clear
10:51 PM 32.0 °F - 19.9 °F 61% 30.27 in 10.0 mi Calm Calm - N/A   Clear
11:51 PM 30.0 °F - 21.0 °F 69% 30.28 in 10.0 mi Calm Calm - N/A   Clear