Weather History for Portland, ME

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 22 °F 22 °F  
Max Temperature 27 °F 31 °F 57 °F (2006)
Min Temperature 17 °F 13 °F -12 °F (1984)
Degree Days  
Heating Degree Days 43 43  
Month to date heating degree days 775 893  
Since 1 July heating degree days 3125 3505  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 3 °F    
Average Humidity 51    
Maximum Humidity 68    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in 0.11 in 2.78 in (1979)
Month to date precipitation 0.65 2.31  
Year to date precipitation 0.65 2.31  
Snow  
Snow 0.00 in 0.70 in 8.20 in (1914)
Month to date snowfall 5.2 13.3  
Since 1 July snowfall 32.9 28.4  
Snow Depth 3.00 in    
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 11 mph (West)    
Max Wind Speed 25 mph    
Max Gust Speed 33 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 21, 2013 Rise Set
Actual Time 7:07 AM EST 4:37 PM EST
Civil Twilight 6:36 AM EST 5:09 PM EST
Nautical Twilight 6:01 AM EST 5:44 PM EST
Astronomical Twilight 5:27 AM EST 6:18 PM EST
Moon 12:15 PM EST (1/21) 2:33 AM EST (1/21)
Length of Visible Light 10h 32m
Length of Day
9h 30m
Waxing Gibbous, 75% of the Moon is Illuminated
Jan 21
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 25.0 °F 10.9 °F 3.0 °F 39% 29.87 in 10.0 mi West 19.6 mph 25.3 mph N/A   Clear
1:51 AM 23.0 °F 9.2 °F 3.9 °F 44% 29.91 in 10.0 mi West 17.3 mph 31.1 mph N/A   Clear
2:51 AM 21.9 °F 6.9 °F -0.9 °F 37% 29.93 in 10.0 mi West 19.6 mph 32.2 mph N/A   Clear
3:51 AM 19.9 °F 4.3 °F -2.0 °F 38% 29.95 in 10.0 mi West 19.6 mph 26.5 mph N/A   Clear
4:51 AM 19.0 °F 4.0 °F -2.0 °F 40% 29.97 in 10.0 mi West 17.3 mph 23.0 mph N/A   Clear
5:51 AM 18.0 °F 8.7 °F -0.9 °F 44% 29.99 in 10.0 mi West 6.9 mph - N/A   Clear
6:51 AM 17.1 °F 3.6 °F -0.0 °F 47% 30.01 in 10.0 mi West 12.7 mph - N/A   Clear
7:51 AM 18.0 °F 8.7 °F -0.0 °F 45% 30.02 in 10.0 mi West 6.9 mph - N/A   Clear
8:51 AM 19.0 °F 6.8 °F -0.9 °F 42% 30.05 in 10.0 mi West 11.5 mph 20.7 mph N/A   Clear
9:51 AM 21.0 °F 8.6 °F -2.0 °F 36% 30.05 in 10.0 mi West 12.7 mph - N/A   Clear
10:51 AM 23.0 °F 10.6 °F -2.0 °F 34% 30.04 in 10.0 mi WSW 13.8 mph 19.6 mph N/A   Clear
11:51 AM 24.1 °F 12.5 °F -0.9 °F 34% 30.00 in 10.0 mi West 12.7 mph - N/A   Clear
12:51 PM 25.0 °F 12.6 °F 1.0 °F 36% 29.97 in 10.0 mi WNW 15.0 mph 20.7 mph N/A   Clear
1:51 PM 27.0 °F 15.6 °F 1.0 °F 33% 29.96 in 10.0 mi West 13.8 mph - N/A   Mostly Cloudy
2:51 PM 26.1 °F 16.2 °F 1.0 °F 34% 29.96 in 10.0 mi WSW 10.4 mph - N/A   Overcast
3:51 PM 26.1 °F 17.6 °F 1.0 °F 34% 29.96 in 10.0 mi WSW 8.1 mph - N/A   Overcast
4:51 PM 25.0 °F - 1.9 °F 37% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
5:51 PM 25.0 °F 18.1 °F 5.0 °F 43% 29.94 in 10.0 mi SW 5.8 mph - N/A   Overcast
6:51 PM 24.1 °F 17.0 °F 8.1 °F 51% 29.95 in 10.0 mi WSW 5.8 mph - N/A   Overcast
7:51 PM 24.1 °F 17.0 °F 10.9 °F 57% 29.95 in 10.0 mi West 5.8 mph - N/A   Overcast
8:51 PM 23.0 °F 14.7 °F 10.4 °F 59% 29.94 in 10.0 mi WNW 6.9 mph - N/A   Overcast
9:51 PM 21.9 °F 17.2 °F 12.0 °F 66% 29.91 in 10.0 mi NNE 3.5 mph - N/A   Partly Cloudy
10:51 PM 21.0 °F 12.4 °F 10.9 °F 65% 29.86 in 10.0 mi NNE 6.9 mph - N/A   Partly Cloudy
11:51 PM 21.9 °F 12.5 °F 12.0 °F 66% 29.84 in 10.0 mi NNE 8.1 mph - N/A   Overcast