Weather History for Portland, ME

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Sunday, May 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 59 °F 53 °F  
Max Temperature 70 °F 62 °F 88 °F (1991)
Min Temperature 48 °F 43 °F 29 °F (1962)
Degree Days  
Heating Degree Days 6 12  
Month to date heating degree days 148 169  
Since 1 July heating degree days 6293 6817  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 71    
Maximum Humidity 100    
Minimum Humidity 42    
Precipitation  
Precipitation 0.09 in 0.13 in 2.21 in (1952)
Month to date precipitation 1.06 1.58  
Year to date precipitation 12.29 16.77  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2002)
Month to date snowfall 0.0 0.1  
Since 1 July snowfall 98.0 62.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.63 in    
Wind  
Wind Speed 8 mph (SSW)    
Max Wind Speed 25 mph    
Max Gust Speed 30 mph    
Visibility 5 miles    
Events Fog , Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

May. 12, 2013 Rise Set
Actual Time 5:19 AM EDT 7:56 PM EDT
Civil Twilight 4:46 AM EDT 8:29 PM EDT
Nautical Twilight 4:05 AM EDT 9:10 PM EDT
Astronomical Twilight 3:18 AM EDT 9:57 PM EDT
Moon 7:10 AM EDT (5/12) 10:22 PM EDT (5/12)
Length of Visible Light 15h 42m
Length of Day
14h 37m
Waxing Crescent, 6% of the Moon is Illuminated
May 12
Waxing Crescent
May 18
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 57.9 °F 57.0 °F 97% 29.69 in 9.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
12:51 AM 59.0 °F 57.9 °F 96% 29.67 in 9.0 mi SW 5.8 mph - N/A   Mostly Cloudy
1:11 AM 59.0 °F 57.9 °F 96% 29.66 in 8.0 mi SSW 3.5 mph - N/A   Partly Cloudy
1:51 AM 57.9 °F 57.0 °F 97% 29.66 in 6.0 mi SSW 4.6 mph - N/A   Partly Cloudy
2:29 AM 57.2 °F 55.4 °F 94% 29.64 in 1.5 mi ESE 3.5 mph - N/A   Scattered Clouds
2:32 AM 55.9 °F 55.0 °F 97% 29.64 in 0.8 mi SE 5.8 mph - N/A   Mist
2:42 AM 55.9 °F 55.0 °F 97% 29.65 in 0.2 mi South 9.2 mph - N/A Fog Fog
2:51 AM 55.0 °F 55.0 °F 100% 29.65 in 0.2 mi South 4.6 mph - N/A Fog Fog
2:58 AM 55.9 °F 55.0 °F 97% 29.65 in 0.8 mi South 4.6 mph - N/A   Mist
3:03 AM 55.9 °F 55.0 °F 97% 29.65 in 1.5 mi South 4.6 mph - N/A   Overcast
3:13 AM 55.0 °F 55.0 °F 100% 29.64 in 2.5 mi South 4.6 mph - N/A   Overcast
3:20 AM 55.9 °F 55.0 °F 97% 29.64 in 3.0 mi South 3.5 mph - N/A   Overcast
3:51 AM 55.9 °F 55.9 °F 100% 29.64 in 3.0 mi South 5.8 mph - N/A   Overcast
4:10 AM 57.0 °F 55.9 °F 96% 29.65 in 2.0 mi South 6.9 mph - N/A   Overcast
4:16 AM 57.0 °F 55.9 °F 96% 29.64 in 1.8 mi South 6.9 mph - N/A   Overcast
4:32 AM 57.0 °F 57.0 °F 100% 29.63 in 2.5 mi SSW 6.9 mph - N/A   Overcast
4:39 AM 57.0 °F 57.0 °F 100% 29.63 in 2.5 mi South 6.9 mph - N/A   Overcast
4:49 AM 57.2 °F 57.2 °F 100% 29.63 in 2.0 mi SSW 4.6 mph - N/A   Overcast
4:51 AM 57.0 °F 57.0 °F 100% 29.63 in 2.0 mi South 4.6 mph - N/A   Overcast
5:08 AM 57.0 °F 57.0 °F 100% 29.63 in 3.0 mi Calm Calm - N/A   Overcast
5:32 AM 57.0 °F 55.9 °F 96% 29.64 in 1.8 mi SSW 5.8 mph - N/A   Overcast
5:35 AM 57.0 °F 55.9 °F 96% 29.64 in 1.0 mi SW 3.5 mph - N/A   Overcast
5:43 AM 57.0 °F 55.9 °F 96% 29.64 in 0.5 mi SSW 5.8 mph - N/A Fog Fog
5:51 AM 57.0 °F 57.0 °F 100% 29.63 in 0.2 mi SSW 3.5 mph - N/A Fog Fog
6:02 AM 57.0 °F 57.0 °F 100% 29.63 in 0.2 mi South 3.5 mph - N/A Fog Fog
6:39 AM 57.0 °F 57.0 °F 100% 29.64 in 0.5 mi South 4.6 mph - N/A Fog Fog
6:43 AM 57.0 °F 57.0 °F 100% 29.64 in 1.0 mi South 3.5 mph - N/A   Overcast
6:47 AM 57.2 °F 57.2 °F 100% 29.64 in 1.5 mi South 4.6 mph - N/A   Overcast
6:51 AM 57.9 °F 57.0 °F 97% 29.64 in 2.0 mi South 5.8 mph - N/A   Overcast
7:51 AM 57.0 °F 57.0 °F 100% 29.62 in 4.0 mi South 5.8 mph - 0.05 in Rain Light Rain
8:10 AM 57.0 °F 57.0 °F 100% 29.61 in 2.0 mi South 5.8 mph - 0.00 in   Overcast
8:31 AM 57.9 °F 57.0 °F 97% 29.62 in 1.5 mi South 5.8 mph - 0.00 in Rain Light Rain
8:51 AM 57.9 °F 57.0 °F 97% 29.62 in 1.5 mi South 5.8 mph - 0.00 in   Overcast
9:00 AM 57.9 °F 57.0 °F 97% 29.61 in 2.0 mi South 8.1 mph - N/A   Overcast
9:51 AM 57.9 °F 57.9 °F 100% 29.59 in 6.0 mi SSW 5.8 mph - 0.03 in Rain Light Rain
10:51 AM 59.0 °F 57.9 °F 96% 29.59 in 4.0 mi South 3.5 mph - 0.00 in Rain Light Rain
11:13 AM 60.1 °F 59.0 °F 96% 29.57 in 5.0 mi SSE 3.5 mph - 0.01 in   Overcast
11:51 AM 63.0 °F 57.9 °F 84% 29.57 in 10.0 mi West 6.9 mph - 0.01 in   Overcast
12:51 PM 62.1 °F 52.0 °F 70% 29.56 in 10.0 mi West 10.4 mph - N/A   Overcast
1:51 PM 64.0 °F 52.0 °F 65% 29.56 in 10.0 mi SW 8.1 mph - N/A   Overcast
2:51 PM 66.9 °F 48.0 °F 51% 29.55 in 10.0 mi West 11.5 mph 16.1 mph N/A   Mostly Cloudy
3:51 PM 70.0 °F 48.9 °F 47% 29.54 in 10.0 mi WSW 9.2 mph - N/A   Mostly Cloudy
4:51 PM 66.0 °F 50.0 °F 56% 29.55 in 10.0 mi SSW 3.5 mph - N/A   Overcast
5:51 PM 68.0 °F 44.1 °F 42% 29.55 in 10.0 mi West 12.7 mph - N/A   Partly Cloudy
6:51 PM 64.0 °F 44.1 °F 48% 29.58 in 10.0 mi West 12.7 mph - N/A   Scattered Clouds
7:51 PM 59.0 °F 37.0 °F 44% 29.63 in 10.0 mi West 16.1 mph - N/A   Mostly Cloudy
8:51 PM 55.0 °F 33.1 °F 43% 29.66 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
9:51 PM 53.1 °F 34.0 °F 48% 29.69 in 10.0 mi West 9.2 mph - N/A   Overcast
10:51 PM 51.1 °F 34.0 °F 52% 29.72 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds
11:51 PM 48.9 °F 32.0 °F 52% 29.75 in 10.0 mi West 10.4 mph - N/A   Clear