Portland, ME

10:33 PM EDT on April 25, 2017 (GMT -0400)
Portland International

Weather History for KPWM - December, 2011

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Friday, December 16, 2011

  Actual Average Record
Temperature  
Mean Temperature 41 °F 29 °F  
Max Temperature 50 °F 37 °F 56 °F (2008)
Min Temperature 31 °F 20 °F -9 °F (1951)
Degree Days  
Heating Degree Days 24 36  
Month to date heating degree days 398 536  
Since 1 July heating degree days 1522 2027  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 454 359  
Moisture  
Dew Point 32 °F    
Average Humidity 59    
Maximum Humidity 72    
Minimum Humidity 45    
Precipitation  
Precipitation 0.00 in 0.13 in 1.96 in (2005)
Month to date precipitation 2.07 2.20  
Year to date precipitation 50.33 45.43  
Snow  
Snow 0.00 in 0.40 in 10.70 in (1916)
Month to date snowfall T 5.5  
Since 1 July snowfall 6.2 7.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.80 in    
Wind  
Wind Speed 12 mph (West)    
Max Wind Speed 26 mph    
Max Gust Speed 36 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 16, 2011 Rise Set
Actual Time 7:08 AM EST 4:05 PM EST
Civil Twilight 6:35 AM EST 4:38 PM EST
Nautical Twilight 5:59 AM EST 5:14 PM EST
Astronomical Twilight 5:24 AM EST 5:49 PM EST
Moon 10:46 PM EST (12/16) 10:42 AM EST (12/16)
Length of Visible Light 10h 02m
Length of Day
8h 56m
Waning Gibbous, 65% of the Moon is Illuminated
Dec 16
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full

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 48.9 °F - 45.0 °F 86% 29.58 in 10.0 mi SSW 8.1 mph - N/A   Clear
1:51 AM 48.0 °F - 45.0 °F 89% 29.57 in 10.0 mi SSW 10.4 mph - N/A   Clear
2:51 AM 48.2 °F - 44.6 °F 87% 29.56 in 10.0 mi SSW 9.2 mph 21.9 mph N/A   Clear
3:51 AM 48.0 °F - 45.0 °F 89% 29.55 in 10.0 mi SW 8.1 mph - N/A   Clear
4:51 AM 50.0 °F - 45.0 °F 83% 29.55 in 10.0 mi SW 10.4 mph 20.7 mph N/A   Mostly Cloudy
5:51 AM 50.0 °F - 37.9 °F 63% 29.58 in 10.0 mi West 17.3 mph 26.5 mph N/A   Clear
6:51 AM 48.0 °F - 35.1 °F 61% 29.62 in 10.0 mi West 13.8 mph 27.6 mph N/A   Scattered Clouds
7:51 AM 46.9 °F - 34.0 °F 61% 29.66 in 10.0 mi West 25.3 mph 35.7 mph N/A   Partly Cloudy
8:51 AM 48.0 °F - 33.1 °F 56% 29.71 in 10.0 mi West 17.3 mph 25.3 mph N/A   Partly Cloudy
9:51 AM 48.9 °F - 33.1 °F 54% 29.74 in 10.0 mi West 17.3 mph 25.3 mph N/A   Partly Cloudy
10:51 AM 48.9 °F - 30.9 °F 50% 29.76 in 10.0 mi West 21.9 mph 34.5 mph N/A   Mostly Cloudy
11:51 AM 46.9 °F - 28.9 °F 50% 29.81 in 10.0 mi NW 21.9 mph 34.5 mph N/A   Scattered Clouds
12:51 PM 48.0 °F - 28.9 °F 48% 29.83 in 10.0 mi NW 16.1 mph 28.8 mph N/A   Scattered Clouds
1:51 PM 46.9 °F - 26.1 °F 44% 29.87 in 10.0 mi WNW 16.1 mph 28.8 mph N/A   Scattered Clouds
2:51 PM 46.4 °F 38.7 °F 26.6 °F 46% 29.90 in 10.0 mi NW 20.7 mph 27.6 mph N/A   Scattered Clouds
3:51 PM 43.0 °F 36.0 °F 27.0 °F 53% 29.96 in 10.0 mi NW 13.8 mph 20.7 mph N/A   Scattered Clouds
4:51 PM 41.0 °F 35.8 °F 26.1 °F 55% 29.97 in 10.0 mi NW 8.1 mph - N/A   Clear
5:51 PM 39.0 °F 35.7 °F 25.0 °F 57% 29.97 in 10.0 mi NW 4.6 mph - N/A   Clear
6:51 PM 37.0 °F 30.4 °F 25.0 °F 62% 30.01 in 10.0 mi West 9.2 mph - N/A   Clear
7:51 PM 37.0 °F 31.6 °F 25.0 °F 62% 30.02 in 10.0 mi SSW 6.9 mph - N/A   Clear
8:51 PM 35.1 °F 30.1 °F 25.0 °F 67% 30.03 in 10.0 mi South 5.8 mph - N/A   Clear
9:51 PM 32.0 °F - 25.0 °F 75% 30.01 in 10.0 mi Calm Calm - N/A   Clear
10:51 PM 32.0 °F 26.4 °F 25.0 °F 75% 30.03 in 10.0 mi WSW 5.8 mph - N/A   Clear
11:51 PM 32.0 °F 27.5 °F 25.0 °F 75% 30.02 in 10.0 mi SW 4.6 mph - N/A   Clear