Weather History for Portsmouth, NH

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Thursday, August 21, 2014

  Actual Average Record
Temperature  
Mean Temperature 62 °F -  
Max Temperature 70 °F 78 °F 92 °F (1983)
Min Temperature 53 °F 58 °F 42 °F (1981)
Degree Days  
Heating Degree Days 4    
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 84    
Maximum Humidity 96    
Minimum Humidity 60    
Precipitation  
Precipitation 0.09 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 2 mph (North)    
Max Wind Speed 6 mph    
Max Gust Speed -    
Visibility 9 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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Astronomy

Aug. 21, 2014 Rise Set
Actual Time 5:55 AM EDT 7:36 PM EDT
Civil Twilight 5:25 AM EDT 8:06 PM EDT
Nautical Twilight 4:48 AM EDT 8:42 PM EDT
Astronomical Twilight 4:09 AM EDT 9:22 PM EDT
Moon 2:20 AM EDT (8/21) 5:05 PM EDT (8/21)
Length of Visible Light 14h 41m
Length of Day
13h 40m
Waning Crescent, 13% of the Moon is Illuminated
Aug 21
Waning Crescent
Aug 25
New
Sep 2
First Quarter
Sep 8
Full
Sep 15
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:58 AM 57.2 °F 55.9 °F 96% 30.07 in 10.0 mi SSW 1.2 mph - N/A   Partly Cloudy
1:58 AM 56.3 °F 54.9 °F 95% 30.07 in 10.0 mi WNW 2.3 mph - N/A   Mostly Cloudy
2:11 AM 55.4 °F 53.6 °F 94% 30.06 in 7.0 mi West 2.3 mph - N/A   Mostly Cloudy
2:58 AM 56.3 °F 55.2 °F 96% 30.08 in 7.0 mi NW 2.3 mph - N/A   Mostly Cloudy
3:58 AM 55.0 °F 53.6 °F 95% 30.07 in 7.0 mi NW 3.5 mph - N/A   Mostly Cloudy
4:58 AM 54.3 °F 52.5 °F 94% 30.06 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:58 AM 53.4 °F 52.0 °F 95% 30.08 in 7.0 mi West 4.6 mph - N/A   Mostly Cloudy
6:58 AM 54.9 °F 53.1 °F 94% 30.09 in 10.0 mi NW 1.2 mph - N/A   Mostly Cloudy
7:58 AM 59.4 °F 55.6 °F 87% 30.10 in 10.0 mi WNW 2.3 mph - N/A   Mostly Cloudy
8:58 AM 59.5 °F 56.3 °F 89% 30.11 in 10.0 mi NNW 2.3 mph - N/A   Overcast
9:58 AM 61.3 °F 57.7 °F 88% 30.11 in 10.0 mi ENE 2.3 mph - N/A   Mostly Cloudy
10:58 AM 66.0 °F 59.0 °F 78% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:58 AM 68.9 °F 55.4 °F 62% 30.10 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
12:58 PM 70.2 °F 55.6 °F 60% 30.11 in 10.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
1:58 PM 68.7 °F 54.7 °F 61% 30.11 in 10.0 mi East 3.5 mph - N/A   Overcast
2:58 PM 68.9 °F 57.4 °F 67% 30.09 in 10.0 mi ENE 4.6 mph - N/A   Overcast
3:58 PM 68.4 °F 56.5 °F 66% 30.09 in 10.0 mi NE 3.5 mph - 0.00 in Rain Light Rain
4:58 PM 68.9 °F 58.6 °F 70% 30.08 in 10.0 mi North 3.5 mph - 0.00 in Rain Light Rain
5:10 PM 69.8 °F 59.0 °F 68% 30.08 in 10.0 mi North 1.2 mph - N/A   Overcast
5:58 PM 69.1 °F 60.3 °F 73% 30.08 in 10.0 mi North 4.6 mph - 0.00 in   Mostly Cloudy
6:58 PM 66.7 °F 59.7 °F 78% 30.09 in 10.0 mi SE 2.3 mph - 0.00 in Rain Light Rain
7:58 PM 64.0 °F 61.5 °F 91% 30.10 in 10.0 mi Calm Calm - 0.01 in Rain Light Rain
8:58 PM 64.0 °F 60.3 °F 87% 30.10 in 10.0 mi WNW 1.2 mph - 0.01 in Rain Light Rain
9:21 PM 64.4 °F 60.8 °F 88% 30.09 in 7.0 mi North 2.3 mph - N/A Rain Light Rain
9:58 PM 63.5 °F 61.5 °F 93% 30.11 in 7.0 mi NNE 4.6 mph - 0.06 in Rain Light Rain
10:34 PM 64.4 °F 62.6 °F 94% 30.09 in 10.0 mi NNE 4.6 mph - N/A   Mostly Cloudy
10:58 PM 62.8 °F 60.6 °F 93% 30.10 in 10.0 mi NNE 3.5 mph - 0.01 in   Mostly Cloudy
11:58 PM 63.1 °F 61.5 °F 94% 30.10 in 10.0 mi Calm Calm - N/A   Overcast