Weather History for Portland, ME

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Tuesday, March 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 44 °F 32 °F  
Max Temperature 48 °F 41 °F 63 °F (1973)
Min Temperature 40 °F 24 °F 3 °F (1929)
Degree Days  
Heating Degree Days 21 33  
Month to date heating degree days 341 413  
Since 1 July heating degree days 4940 5455  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 43 °F    
Average Humidity 93    
Maximum Humidity 100    
Minimum Humidity 86    
Precipitation  
Precipitation 0.64 in 0.12 in 1.60 in (1985)
Month to date precipitation 0.88 1.54  
Year to date precipitation 8.31 8.17  
Snow  
Snow 0.00 in 0.50 in 10.80 in (1959)
Month to date snowfall 3.6 5.9  
Since 1 July snowfall 88.2 52.3  
Snow Depth 3.00 in    
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 10 mph (South)    
Max Wind Speed 23 mph    
Max Gust Speed 39 mph    
Visibility 5 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Mar. 12, 2013 Rise Set
Actual Time 6:58 AM EDT 6:44 PM EDT
Civil Twilight 6:29 AM EDT 7:12 PM EDT
Nautical Twilight 5:56 AM EDT 7:45 PM EDT
Astronomical Twilight 5:22 AM EDT 8:19 PM EDT
Moon 7:00 AM EDT (3/12) 7:59 PM EDT (3/12)
Length of Visible Light 12h 42m
Length of Day
11h 45m
New Moon, 1% of the Moon is Illuminated
Mar 12
New Moon
Mar 19
First Quarter
Mar 27
Full
Apr 3
Last Quarter
Apr 10
New

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:06 AM 41.0 °F 35.8 °F 37.4 °F 87% 30.15 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
12:51 AM 41.0 °F 35.8 °F 37.9 °F 89% 30.16 in 10.0 mi South 8.1 mph - N/A   Overcast
1:51 AM 41.0 °F 35.8 °F 39.2 °F 93% 30.15 in 10.0 mi South 8.1 mph 18.4 mph N/A   Overcast
2:14 AM 41.0 °F 35.8 °F 39.0 °F 93% 30.15 in 10.0 mi SSW 8.1 mph - N/A   Overcast
2:51 AM 41.0 °F 37.1 °F 39.0 °F 93% 30.14 in 10.0 mi South 5.8 mph - N/A   Overcast
3:03 AM 41.0 °F 36.4 °F 39.0 °F 93% 30.13 in 10.0 mi South 6.9 mph - N/A   Overcast
3:51 AM 41.0 °F 36.4 °F 39.0 °F 93% 30.12 in 9.0 mi South 6.9 mph - N/A   Overcast
4:51 AM 41.0 °F 38.0 °F 39.0 °F 93% 30.12 in 8.0 mi SW 4.6 mph - N/A   Overcast
5:51 AM 39.2 °F - 39.2 °F 100% 30.10 in 3.0 mi Calm Calm - N/A   Overcast
6:51 AM 41.0 °F - 39.9 °F 96% 30.09 in 3.0 mi Calm Calm - N/A   Overcast
7:51 AM 42.1 °F 40.2 °F 41.0 °F 96% 30.10 in 3.0 mi Variable 3.5 mph - N/A   Overcast
8:51 AM 42.8 °F 41.1 °F 41.0 °F 93% 30.09 in 3.0 mi South 3.5 mph - N/A   Overcast
9:51 AM 44.1 °F 40.8 °F 42.1 °F 93% 30.07 in 4.0 mi South 5.8 mph - N/A   Overcast
10:51 AM 45.0 °F 40.6 °F 42.1 °F 90% 30.07 in 8.0 mi South 8.1 mph - N/A   Overcast
10:53 AM 45.0 °F 39.7 °F 42.1 °F 90% 30.07 in 5.0 mi South 10.4 mph - N/A   Overcast
11:51 AM 45.0 °F 38.2 °F 42.1 °F 90% 30.04 in 5.0 mi South 15.0 mph 19.6 mph N/A   Overcast
12:51 PM 45.0 °F 37.4 °F 43.0 °F 93% 30.02 in 4.0 mi South 18.4 mph - N/A   Overcast
1:51 PM 46.0 °F 41.0 °F 43.0 °F 89% 30.00 in 5.0 mi SSE 10.4 mph - N/A   Overcast
2:51 PM 46.0 °F 41.4 °F 43.0 °F 89% 29.98 in 4.0 mi SSE 9.2 mph - 0.00 in   Overcast
3:51 PM 45.0 °F 40.1 °F 43.0 °F 93% 29.95 in 4.0 mi SSE 9.2 mph - 0.02 in Rain Light Rain
4:51 PM 45.0 °F 38.9 °F 44.1 °F 97% 29.93 in 4.0 mi SSE 12.7 mph - 0.06 in Rain Light Rain
5:47 PM 44.6 °F 37.2 °F 44.6 °F 100% 29.90 in 2.0 mi South 17.3 mph - 0.04 in Rain Light Rain
5:51 PM 45.0 °F 37.6 °F 44.1 °F 97% 29.90 in 2.0 mi South 17.3 mph - 0.04 in Rain Light Rain
6:51 PM 46.9 °F - 46.0 °F 97% 29.87 in 2.0 mi South 17.3 mph 28.8 mph 0.10 in Rain Light Rain
7:51 PM 48.0 °F - 46.9 °F 96% 29.84 in 2.0 mi SSE 16.1 mph 24.2 mph 0.10 in Rain Light Rain
8:36 PM 48.0 °F - 46.9 °F 96% 29.81 in 3.0 mi SSE 18.4 mph 31.1 mph 0.09 in Rain Rain
8:51 PM 46.9 °F - 46.0 °F 97% 29.80 in 3.0 mi SSE 23.0 mph 28.8 mph 0.14 in Rain Light Rain
9:51 PM 48.2 °F - 46.4 °F 93% 29.76 in 4.0 mi SSE 21.9 mph 32.2 mph N/A Rain Light Rain
10:05 PM 48.0 °F - 46.9 °F 96% 29.75 in 2.0 mi SSE 21.9 mph 35.7 mph 0.03 in Rain Rain
10:51 PM 46.9 °F - 46.9 °F 100% 29.74 in 5.0 mi South 17.3 mph 27.6 mph 0.09 in   Overcast
11:51 PM 46.0 °F 39.6 °F 46.0 °F 100% 29.73 in 2.0 mi South 15.0 mph 27.6 mph 0.00 in Rain Light Rain