Weather History for Portland, ME

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Sunday, April 29, 2012

  Actual Average Record
Temperature  
Mean Temperature 44 °F 49 °F  
Max Temperature 54 °F 58 °F 82 °F (1974)
Min Temperature 33 °F 39 °F 24 °F (1963)
Degree Days  
Heating Degree Days 21 16  
Month to date heating degree days 514 613  
Since 1 July heating degree days 5508 6631  
Cooling Degree Days 0 0  
Month to date cooling degree days 1 0  
Year to date cooling degree days 1 0  
Moisture  
Dew Point 15 °F    
Average Humidity 40    
Maximum Humidity 64    
Minimum Humidity 16    
Precipitation  
Precipitation T in 0.15 in 2.23 in (2008)
Month to date precipitation 4.84 4.17  
Year to date precipitation 12.65 15.04  
Snow  
Snow 0.00 in 0.00 in 1.10 in (1987)
Month to date snowfall T 2.8  
Since 1 July snowfall 43.9 61.9  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 10 mph (WNW)    
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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Astronomy

Apr. 29, 2012 Rise Set
Actual Time 5:35 AM EDT 7:41 PM EDT
Civil Twilight 5:04 AM EDT 8:13 PM EDT
Nautical Twilight 4:26 AM EDT 8:51 PM EDT
Astronomical Twilight 3:43 AM EDT 9:34 PM EDT
Moon 12:17 PM EDT (4/29) 1:38 AM EDT (4/29)
Length of Visible Light 15h 08m
Length of Day
14h 06m
First Quarter, 53% of the Moon is Illuminated
Apr 29
First Quarter
May 5
Full
May 12
Last Quarter
May 20
New
May 28
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 37.0 °F 31.6 °F 18.0 °F 46% 30.09 in 10.0 mi West 6.9 mph - N/A   Clear
1:51 AM 39.0 °F 36.8 °F 17.1 °F 41% 30.08 in 10.0 mi West 3.5 mph - N/A   Clear
2:51 AM 37.0 °F 32.4 °F 17.1 °F 44% 30.06 in 10.0 mi West 5.8 mph - N/A   Clear
3:51 AM 36.0 °F - 19.0 °F 50% 30.06 in 10.0 mi Calm Calm - N/A   Clear
4:51 AM 35.1 °F 32.2 °F 17.1 °F 48% 30.06 in 10.0 mi West 3.5 mph - N/A   Clear
5:51 AM 33.1 °F - 21.9 °F 64% 30.06 in 10.0 mi Calm Calm - N/A   Clear
6:51 AM 33.8 °F - 23.0 °F 65% 30.07 in 10.0 mi Calm Calm - N/A   Clear
7:51 AM 39.9 °F 34.5 °F 21.9 °F 49% 30.06 in 10.0 mi West 8.1 mph - N/A   Clear
8:51 AM 45.0 °F 40.1 °F 21.0 °F 39% 30.05 in 10.0 mi West 9.2 mph - N/A   Clear
9:51 AM 46.9 °F - 16.0 °F 29% 30.04 in 10.0 mi West 11.5 mph 19.6 mph 0.00 in   Clear
10:51 AM 48.9 °F - 15.1 °F 26% 30.02 in 10.0 mi NNW 17.3 mph 23.0 mph N/A   Clear
11:51 AM 52.0 °F - 17.1 °F 25% 30.00 in 10.0 mi NW 15.0 mph 24.2 mph N/A   Clear
12:51 PM 52.0 °F - 15.1 °F 23% 29.97 in 10.0 mi NNW 12.7 mph 33.4 mph N/A   Clear
1:51 PM 53.1 °F - 10.9 °F 19% 29.97 in 10.0 mi NNW 21.9 mph 29.9 mph N/A   Clear
2:51 PM 53.1 °F - 10.0 °F 18% 29.97 in 10.0 mi NW 16.1 mph 32.2 mph N/A   Clear
3:51 PM 53.1 °F - 9.0 °F 17% 29.98 in 10.0 mi WNW 26.5 mph 32.2 mph N/A   Clear
4:51 PM 52.0 °F - 10.0 °F 19% 30.00 in 10.0 mi NW 19.6 mph 27.6 mph N/A   Clear
5:51 PM 50.0 °F - 12.9 °F 23% 30.03 in 10.0 mi NNW 21.9 mph 33.4 mph N/A   Clear
6:51 PM 48.0 °F - 12.9 °F 24% 30.05 in 10.0 mi NNW 15.0 mph 25.3 mph N/A   Clear
7:51 PM 44.1 °F 39.0 °F 14.0 °F 30% 30.09 in 10.0 mi WNW 9.2 mph - N/A   Clear
8:51 PM 42.1 °F 38.4 °F 14.0 °F 32% 30.12 in 10.0 mi WNW 5.8 mph - N/A   Clear
9:51 PM 39.9 °F 35.1 °F 14.0 °F 35% 30.14 in 10.0 mi WNW 6.9 mph - N/A   Clear
10:51 PM 39.9 °F 35.8 °F 14.0 °F 35% 30.15 in 10.0 mi West 5.8 mph - N/A   Clear
11:51 PM 39.0 °F 34.8 °F 14.0 °F 36% 30.18 in 10.0 mi WSW 5.8 mph - N/A   Clear