Weather History for Portsmouth, NH

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Thursday, December 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 34 °F -  
Max Temperature 39 °F 36 °F 55 °F (2002)
Min Temperature 29 °F 21 °F -13 °F (1980)
Degree Days  
Heating Degree Days 31    
Moisture  
Dew Point 31 °F    
Average Humidity 84    
Maximum Humidity 99    
Minimum Humidity 62    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.12 in    
Wind  
Wind Speed 4 mph (NNE)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 10 miles    
Events Rain    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 20, 2012 Rise Set
Actual Time 7:11 AM EST 4:11 PM EST
Civil Twilight 6:38 AM EST 4:43 PM EST
Nautical Twilight 6:02 AM EST 5:19 PM EST
Astronomical Twilight 5:28 AM EST 5:54 PM EST
Moon 11:35 AM EST (12/20) No Moon Set
Length of Visible Light 10h 04m
Length of Day
8h 59m
First Quarter, 55% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:39 AM 35.6 °F 30.7 °F 33.8 °F 93% 30.04 in 10.0 mi NNW 5.8 mph - N/A   Overcast
12:55 AM 35.8 °F 30.9 °F 32.9 °F 89% 30.04 in 10.0 mi NNW 5.8 mph - N/A   Overcast
1:20 AM 35.6 °F 32.8 °F 33.8 °F 93% 30.05 in 10.0 mi NW 3.5 mph - N/A   Overcast
1:55 AM 36.0 °F 30.3 °F 33.3 °F 90% 30.07 in 10.0 mi North 6.9 mph - N/A   Overcast
2:12 AM 35.6 °F 29.9 °F 33.8 °F 93% 30.07 in 10.0 mi North 6.9 mph - N/A   Overcast
2:55 AM 35.6 °F 31.7 °F 32.9 °F 90% 30.08 in 10.0 mi Variable 4.6 mph - N/A   Overcast
3:55 AM 34.2 °F 31.2 °F 32.5 °F 94% 30.09 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
4:55 AM 32.9 °F 28.5 °F 31.1 °F 93% 30.09 in 10.0 mi NNE 4.6 mph - N/A   Partly Cloudy
5:55 AM 29.7 °F - 29.1 °F 98% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:55 AM 31.5 °F - 31.3 °F 99% 30.16 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:55 AM 33.4 °F 30.4 °F 33.3 °F 99% 30.18 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
8:55 AM 34.7 °F 30.6 °F 32.7 °F 92% 30.19 in 10.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
9:55 AM 36.1 °F 32.3 °F 32.4 °F 86% 30.21 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
10:55 AM 36.9 °F 33.1 °F 30.2 °F 77% 30.21 in 10.0 mi NNE 4.6 mph - N/A   Mostly Cloudy
11:55 AM 37.8 °F 35.3 °F 30.4 °F 75% 30.19 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
12:55 PM 38.5 °F - 29.7 °F 71% 30.17 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:55 PM 39.0 °F 36.8 °F 29.7 °F 69% 30.15 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
2:55 PM 38.7 °F - 26.8 °F 62% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
3:55 PM 38.3 °F - 27.1 °F 64% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
4:55 PM 37.8 °F - 27.5 °F 67% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
5:55 PM 37.0 °F - 28.6 °F 71% 30.15 in 10.0 mi Calm Calm - N/A   Overcast
6:55 PM 36.1 °F 33.5 °F 32.2 °F 86% 30.14 in 10.0 mi NE 3.5 mph - N/A   Overcast
7:55 PM 36.3 °F - 31.5 °F 83% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
8:55 PM 37.6 °F 32.3 °F 30.2 °F 75% 30.13 in 10.0 mi East 6.9 mph - N/A   Overcast
9:27 PM 37.4 °F - 32.0 °F 81% 30.11 in 10.0 mi Calm Calm - N/A Rain Light Rain
9:55 PM 36.9 °F 34.3 °F 31.5 °F 81% 30.10 in 7.0 mi ENE 3.5 mph - 0.00 in Rain Light Rain
10:55 PM 36.7 °F 32.9 °F 33.1 °F 87% 30.08 in 7.0 mi SE 4.6 mph - 0.00 in Rain Light Rain
11:46 PM 37.4 °F 34.9 °F 33.8 °F 87% 30.06 in 10.0 mi SE 3.5 mph - N/A   Overcast
11:55 PM 37.2 °F - 33.6 °F 87% 30.06 in 10.0 mi Calm Calm - 0.00 in   Overcast