Weather History for Portsmouth, NH

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Saturday, September 3, 2011

  Actual Average Record
Temperature  
Mean Temperature 70 °F -  
Max Temperature 84 °F 74 °F 93 °F (1973)
Min Temperature 55 °F 55 °F 39 °F (1994)
Cooling Degree Days 4    
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 63 °F    
Average Humidity 81    
Maximum Humidity 96    
Minimum Humidity 59    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.90 in    
Wind  
Wind Speed 4 mph (SSW)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
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

Sep. 03, 2011 Rise Set
Actual Time 6:09 AM EDT 7:15 PM EDT
Civil Twilight 5:40 AM EDT 7:44 PM EDT
Nautical Twilight 5:05 AM EDT 8:18 PM EDT
Astronomical Twilight 4:28 AM EDT 8:55 PM EDT
Moon 1:00 PM EDT (9/3) 10:23 PM EDT (9/3)
Length of Visible Light 14h 03m
Length of Day
13h 05m
Waxing Crescent, 38% of the Moon is Illuminated
Sep 3
Waxing Crescent
Sep 4
First Quarter
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 55.9 °F - 54.0 °F 93% 30.02 in 10.0 mi SE 3.5 mph - N/A   Clear
1:55 AM 55.9 °F - 54.1 °F 94% 30.00 in 10.0 mi South 3.5 mph - N/A   Clear
2:55 AM 56.1 °F - 55.0 °F 96% 29.97 in 10.0 mi SSE 5.8 mph - N/A   Partly Cloudy
3:55 AM 56.7 °F - 55.6 °F 96% 29.97 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:55 AM 56.7 °F - 55.4 °F 96% 29.96 in 7.0 mi Calm Calm - N/A   Scattered Clouds
5:55 AM 56.5 °F - 55.2 °F 96% 29.95 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
6:55 AM 57.0 °F - 55.9 °F 96% 29.95 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:55 AM 60.8 °F - 58.8 °F 93% 29.93 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
8:55 AM 65.5 °F - 60.3 °F 83% 29.93 in 10.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
9:55 AM 66.6 °F - 60.1 °F 80% 29.92 in 10.0 mi SW 5.8 mph - N/A   Overcast
10:55 AM 71.1 °F - 61.9 °F 73% 29.90 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
11:55 AM 74.7 °F - 63.3 °F 68% 29.87 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
12:55 PM 79.9 °F - 65.5 °F 61% 29.86 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
1:55 PM 82.2 °F 84.7 °F 66.9 °F 60% 29.86 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
2:55 PM 83.8 °F 87.0 °F 68.0 °F 59% 29.85 in 10.0 mi WSW 6.9 mph - N/A   Partly Cloudy
3:55 PM 84.7 °F 88.8 °F 69.6 °F 60% 29.84 in 10.0 mi WSW 9.2 mph - N/A   Partly Cloudy
4:55 PM 84.2 °F 88.7 °F 70.3 °F 63% 29.84 in 10.0 mi SW 6.9 mph - N/A   Partly Cloudy
5:55 PM 82.6 °F 87.1 °F 70.9 °F 68% 29.85 in 10.0 mi SSW 6.9 mph - N/A   Partly Cloudy
6:55 PM 80.4 °F 83.9 °F 70.5 °F 72% 29.85 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:55 PM 76.8 °F - 70.3 °F 80% 29.86 in 10.0 mi SSE 3.5 mph - N/A   Partly Cloudy
8:55 PM 73.2 °F - 69.1 °F 87% 29.87 in 10.0 mi East 4.6 mph - N/A   Clear
9:55 PM 74.3 °F - 70.0 °F 86% 29.87 in 10.0 mi SSW 3.5 mph - N/A   Clear
10:55 PM 74.5 °F - 69.8 °F 85% 29.87 in 10.0 mi SW 3.5 mph - N/A   Clear
11:55 PM 73.4 °F - 69.4 °F 87% 29.88 in 10.0 mi Calm Calm - N/A   Clear