Weather History for Portland, ME

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Sunday, August 4, 2013

  Actual Average Record
Temperature  
Mean Temperature 66 °F 69 °F  
Max Temperature 77 °F 79 °F 93 °F (1988)
Min Temperature 55 °F 60 °F 45 °F (1959)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 88 123  
Since 1 July heating degree days 7 17  
Cooling Degree Days 1 5  
Month to date cooling degree days 12 20  
Year to date cooling degree days 327 228  
Since 1 June cooling degree days 312 221  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 72    
Maximum Humidity 93    
Minimum Humidity 50    
Precipitation  
Precipitation 0.09 in 0.10 in 2.11 in (1885)
Month to date precipitation 0.62 0.42  
Year to date precipitation 27.10 27.02  
Snow  
Snow 0.00 in 0.00 in 0.00 in (2002)
Month to date snowfall 0.0 0.0  
Since 1 June snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.79 in    
Wind  
Wind Speed 6 mph (WNW)    
Max Wind Speed 28 mph    
Max Gust Speed 37 mph    
Visibility 10 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

Aug. 04, 2013 Rise Set
Actual Time 5:33 AM EDT 8:00 PM EDT
Civil Twilight 5:01 AM EDT 8:32 PM EDT
Nautical Twilight 4:21 AM EDT 9:12 PM EDT
Astronomical Twilight 3:35 AM EDT 9:57 PM EDT
Moon 3:31 AM EDT (8/4) 6:21 PM EDT (8/4)
Length of Visible Light 15h 30m
Length of Day
14h 26m
Waning Crescent, 5% of the Moon is Illuminated
Aug 4
Waning Crescent
Aug 6
New
Aug 14
First Quarter
Aug 20
Full
Aug 28
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:51 AM 62.1 °F 55.0 °F 78% 29.79 in 10.0 mi West 3.5 mph - N/A   Clear
1:51 AM 60.1 °F 55.0 °F 83% 29.78 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
2:51 AM 59.0 °F 54.0 °F 83% 29.78 in 10.0 mi West 3.5 mph - N/A   Clear
3:51 AM 57.9 °F 53.1 °F 84% 29.77 in 10.0 mi West 5.8 mph - N/A   Clear
4:51 AM 55.9 °F 53.1 °F 90% 29.79 in 10.0 mi Calm Calm - N/A   Clear
5:51 AM 55.0 °F 53.1 °F 93% 29.80 in 10.0 mi Calm Calm - N/A   Clear
6:51 AM 60.1 °F 55.0 °F 83% 29.80 in 10.0 mi Calm Calm - N/A   Clear
7:51 AM 64.9 °F 57.0 °F 75% 29.81 in 10.0 mi WNW 8.1 mph - N/A   Clear
8:51 AM 69.1 °F 57.0 °F 65% 29.80 in 10.0 mi West 5.8 mph - N/A   Clear
9:51 AM 72.0 °F 57.0 °F 59% 29.80 in 10.0 mi West 5.8 mph - N/A   Clear
10:51 AM 73.9 °F 55.0 °F 52% 29.80 in 10.0 mi West 5.8 mph - N/A   Clear
11:51 AM 75.0 °F 55.9 °F 51% 29.79 in 10.0 mi North - - N/A   Scattered Clouds
12:51 PM 73.0 °F 55.9 °F 55% 29.78 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
1:51 PM 75.9 °F 55.9 °F 50% 29.77 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
2:51 PM 75.9 °F 57.0 °F 52% 29.75 in 10.0 mi South 9.2 mph - N/A   Clear
3:13 PM 75.0 °F 53.1 °F 46% 29.75 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
3:22 PM 66.0 °F 57.0 °F 73% 29.77 in 6.0 mi WNW 27.6 mph 36.8 mph 0.00 in Rain Light Rain
3:24 PM 64.9 °F 57.0 °F 75% 29.77 in 6.0 mi NW 27.6 mph 36.8 mph 0.00 in Rain , Thunderstorm Thunderstorms and Rain
3:34 PM 64.0 °F 59.0 °F 84% 29.78 in 6.0 mi NW 27.6 mph 36.8 mph 0.09 in Rain , Thunderstorm Thunderstorms and Rain
3:51 PM 66.0 °F 61.0 °F 84% 29.77 in 10.0 mi NNW 11.5 mph - 0.09 in Rain Light Rain
4:51 PM 71.1 °F 59.0 °F 66% 29.78 in 10.0 mi North - - 0.00 in   Partly Cloudy
5:51 PM 70.0 °F 55.0 °F 59% 29.79 in 10.0 mi WNW 5.8 mph - 0.00 in   Overcast
6:51 PM 70.0 °F 57.0 °F 63% 29.79 in 10.0 mi WNW 5.8 mph - 0.00 in   Mostly Cloudy
7:51 PM 66.9 °F 57.0 °F 70% 29.82 in 10.0 mi WNW 4.6 mph - N/A   Scattered Clouds
8:51 PM 62.1 °F 55.9 °F 80% 29.83 in 10.0 mi WNW 5.8 mph - N/A   Clear
9:51 PM 61.0 °F 55.0 °F 81% 29.84 in 10.0 mi WNW 6.9 mph - N/A   Scattered Clouds
10:51 PM 59.0 °F 53.1 °F 81% 29.84 in 10.0 mi WNW 6.9 mph - N/A   Clear
11:51 PM 57.9 °F 52.0 °F 81% 29.85 in 10.0 mi WNW 6.9 mph - N/A   Clear