Weather History for Portland, ME

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Sunday, January 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 38 °F 22 °F  
Max Temperature 49 °F 31 °F 55 °F (2006)
Min Temperature 26 °F 13 °F -21 °F (1971)
Degree Days  
Heating Degree Days 27 43  
Month to date heating degree days 732 850  
Since 1 July heating degree days 3082 3462  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 22 °F    
Average Humidity 55    
Maximum Humidity 76    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in 0.11 in 1.28 in (1995)
Month to date precipitation 0.65 2.20  
Year to date precipitation 0.65 2.20  
Snow  
Snow 0.00 in 0.60 in 9.60 in (1978)
Month to date snowfall 5.2 12.6  
Since 1 July snowfall 32.9 27.7  
Snow Depth 5.00 in    
Sea Level Pressure  
Sea Level Pressure 29.65 in    
Wind  
Wind Speed 15 mph (SW)    
Max Wind Speed 31 mph    
Max Gust Speed 45 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 20, 2013 Rise Set
Actual Time 7:08 AM EST 4:36 PM EST
Civil Twilight 6:37 AM EST 5:08 PM EST
Nautical Twilight 6:01 AM EST 5:43 PM EST
Astronomical Twilight 5:27 AM EST 6:17 PM EST
Moon 11:36 AM EST (1/20) 1:36 AM EST (1/20)
Length of Visible Light 10h 31m
Length of Day
9h 28m
Waxing Gibbous, 66% of the Moon is Illuminated
Jan 20
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
First Quarter

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 39.0 °F 34.8 °F 30.0 °F 70% 29.83 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
1:51 AM 39.9 °F 35.8 °F 30.9 °F 70% 29.82 in 10.0 mi SSW 5.8 mph - N/A   Overcast
2:51 AM 39.9 °F 33.4 °F 30.9 °F 70% 29.77 in 10.0 mi South 10.4 mph - N/A   Overcast
3:51 AM 39.9 °F 33.4 °F 30.0 °F 68% 29.73 in 10.0 mi South 10.4 mph - N/A   Overcast
4:51 AM 39.9 °F 33.9 °F 32.0 °F 73% 29.70 in 10.0 mi SW 9.2 mph - N/A   Overcast
5:51 AM 39.9 °F 33.9 °F 32.0 °F 73% 29.65 in 10.0 mi South 9.2 mph - N/A   Clear
6:51 AM 39.9 °F 33.9 °F 30.0 °F 68% 29.60 in 10.0 mi South 9.2 mph - N/A   Clear
7:51 AM 39.9 °F 33.9 °F 30.0 °F 68% 29.56 in 10.0 mi South 9.2 mph - N/A   Clear
8:51 AM 42.8 °F 36.2 °F 30.2 °F 61% 29.54 in 10.0 mi SW 12.7 mph 20.7 mph N/A   Clear
9:51 AM 44.1 °F 37.4 °F 28.9 °F 55% 29.52 in 10.0 mi SSW 13.8 mph 23.0 mph N/A   Clear
10:51 AM 46.0 °F 40.2 °F 28.0 °F 50% 29.48 in 10.0 mi SSW 12.7 mph 29.9 mph N/A   Clear
11:51 AM 48.9 °F - 27.0 °F 43% 29.44 in 10.0 mi SSW 12.7 mph - N/A   Clear
12:51 PM 46.9 °F - 27.0 °F 46% 29.47 in 10.0 mi West 21.9 mph 28.8 mph N/A   Overcast
1:51 PM 44.1 °F 35.0 °F 28.0 °F 53% 29.49 in 10.0 mi WSW 24.2 mph 34.5 mph N/A   Mostly Cloudy
2:51 PM 44.1 °F 38.1 °F 21.9 °F 42% 29.52 in 10.0 mi WSW 11.5 mph 33.4 mph N/A   Clear
3:51 PM 42.8 °F 34.3 °F 15.8 °F 34% 29.56 in 10.0 mi West 19.6 mph 39.1 mph N/A   Clear
4:51 PM 39.9 °F 30.5 °F 15.1 °F 36% 29.62 in 10.0 mi West 19.6 mph 31.1 mph N/A   Clear
5:51 PM 36.0 °F 23.5 °F 14.0 °F 41% 29.68 in 10.0 mi West 27.6 mph 35.7 mph N/A   Clear
6:51 PM 34.0 °F 21.8 °F 12.0 °F 40% 29.71 in 10.0 mi West 23.0 mph 32.2 mph N/A   Clear
7:51 PM 32.0 °F 21.6 °F 10.0 °F 40% 29.74 in 10.0 mi West 15.0 mph 27.6 mph N/A   Clear
8:51 PM 30.9 °F 19.4 °F 10.0 °F 42% 29.77 in 10.0 mi West 17.3 mph 31.1 mph N/A   Clear
9:51 PM 30.0 °F 17.2 °F 8.1 °F 40% 29.80 in 10.0 mi West 20.7 mph 33.4 mph N/A   Clear
10:51 PM 28.0 °F 13.6 °F 6.1 °F 39% 29.83 in 10.0 mi West 24.2 mph 34.5 mph N/A   Clear
11:51 PM 26.1 °F 13.6 °F 5.0 °F 41% 29.85 in 10.0 mi West 16.1 mph 31.1 mph N/A   Clear