Weather History for Portland, ME

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Monday, March 19, 2012

  Actual Average Record
Temperature  
Mean Temperature 56 °F 34 °F  
Max Temperature 70 °F 43 °F 70 °F (2012)
Min Temperature 42 °F 26 °F -10 °F (1967)
Degree Days  
Heating Degree Days 9 31  
Month to date heating degree days 501 635  
Since 1 July heating degree days 4763 5677  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 42 °F    
Average Humidity 65    
Maximum Humidity 86    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in 0.15 in 2.28 in (1983)
Month to date precipitation 1.72 2.49  
Year to date precipitation 7.48 9.12  
Snow  
Snow 0.00 in 0.50 in 8.70 in (2013)
Month to date snowfall 13.7 9.0  
Since 1 July snowfall 43.4 55.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.19 in    
Wind  
Wind Speed 12 mph (NE)    
Max Wind Speed 23 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Mar. 19, 2012 Rise Set
Actual Time 6:45 AM EDT 6:52 PM EDT
Civil Twilight 6:16 AM EDT 7:21 PM EDT
Nautical Twilight 5:43 AM EDT 7:55 PM EDT
Astronomical Twilight 5:09 AM EDT 8:29 PM EDT
Moon 5:00 AM EDT (3/19) 4:14 PM EDT (3/19)
Length of Visible Light 13h 04m
Length of Day
12h 07m
Waning Crescent, 8% of the Moon is Illuminated
Mar 19
Waning Crescent
Mar 22
New
Mar 30
First Quarter
Apr 6
Full
Apr 13
Last 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 48.0 °F - 42.1 °F 80% 30.07 in 10.0 mi North 5.8 mph - N/A   Clear
1:51 AM 46.4 °F 43.5 °F 42.8 °F 87% 30.07 in 10.0 mi North 5.8 mph - N/A   Clear
2:51 AM 52.0 °F - 43.0 °F 71% 30.06 in 10.0 mi North 4.6 mph - N/A   Clear
3:51 AM 45.0 °F 41.8 °F 39.9 °F 82% 30.07 in 10.0 mi NNE 5.8 mph - N/A   Clear
4:51 AM 50.0 °F - 42.8 °F 76% 30.09 in 10.0 mi North 5.8 mph - N/A   Clear
5:51 AM 46.0 °F 43.1 °F 41.0 °F 83% 30.11 in 10.0 mi North 5.8 mph - N/A   Clear
6:51 AM 48.9 °F - 41.0 °F 74% 30.12 in 10.0 mi North 5.8 mph - N/A   Clear
7:51 AM 50.0 °F - 43.0 °F 77% 30.14 in 10.0 mi NE 9.2 mph - N/A   Scattered Clouds
8:51 AM 54.0 °F - 45.0 °F 72% 30.16 in 10.0 mi NNE 8.1 mph - N/A   Scattered Clouds
9:51 AM 61.0 °F - 45.0 °F 56% 30.17 in 10.0 mi NNE 9.2 mph - N/A   Partly Cloudy
10:51 AM 64.9 °F - 45.0 °F 48% 30.18 in 10.0 mi NE 10.4 mph - N/A   Clear
11:51 AM 70.0 °F - 46.0 °F 42% 30.20 in 10.0 mi NE 17.3 mph - N/A   Scattered Clouds
12:51 PM 60.8 °F - 44.6 °F 55% 30.22 in 10.0 mi ENE 20.7 mph - N/A   Partly Cloudy
1:51 PM 59.0 °F - 43.0 °F 55% 30.24 in 10.0 mi ENE 18.4 mph 26.5 mph N/A   Partly Cloudy
2:51 PM 55.9 °F - 42.1 °F 60% 30.24 in 10.0 mi ENE 20.7 mph 29.9 mph N/A   Clear
3:51 PM 55.0 °F - 39.9 °F 57% 30.24 in 10.0 mi ENE 23.0 mph - N/A   Clear
4:51 PM 51.1 °F - 39.9 °F 66% 30.25 in 10.0 mi ENE 17.3 mph - N/A   Partly Cloudy
5:51 PM 48.9 °F - 39.0 °F 69% 30.26 in 10.0 mi ENE 12.7 mph 21.9 mph N/A   Mostly Cloudy
6:51 PM 46.0 °F 39.9 °F 39.0 °F 76% 30.27 in 10.0 mi ENE 13.8 mph - N/A   Clear
7:51 PM 45.0 °F 38.9 °F 39.0 °F 80% 30.29 in 10.0 mi ENE 12.7 mph - N/A   Clear
8:51 PM 46.0 °F 39.9 °F 39.9 °F 79% 30.30 in 10.0 mi ENE 13.8 mph - N/A   Clear
9:51 PM 45.0 °F 38.9 °F 39.0 °F 80% 30.30 in 10.0 mi ENE 12.7 mph - N/A   Clear
10:51 PM 45.0 °F 39.7 °F 39.0 °F 80% 30.31 in 10.0 mi NE 10.4 mph - N/A   Clear
11:51 PM 44.1 °F 38.6 °F 39.0 °F 82% 30.31 in 10.0 mi NE 10.4 mph - N/A   Clear