Weather History for Portsmouth, NH

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Monday, October 18, 2010

  Actual Average Record
Temperature  
Mean Temperature 46 °F -  
Max Temperature 57 °F 56 °F 77 °F (1998)
Min Temperature 36 °F 39 °F 18 °F (1978)
Degree Days  
Heating Degree Days 18    
Moisture  
Dew Point 30 °F    
Average Humidity 53    
Maximum Humidity 85    
Minimum Humidity 31    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.82 in    
Wind  
Wind Speed 8 mph (West)    
Max Wind Speed 15 mph    
Max Gust Speed 24 mph    
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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Date:

Astronomy

Oct. 18, 2010 Rise Set
Actual Time 7:00 AM EDT 5:55 PM EDT
Civil Twilight 6:31 AM EDT 6:24 PM EDT
Nautical Twilight 5:58 AM EDT 6:57 PM EDT
Astronomical Twilight 5:25 AM EDT 7:30 PM EDT
Moon 3:44 PM EDT (10/18) 2:39 AM EDT (10/18)
Length of Visible Light 11h 52m
Length of Day
10h 55m
Waxing Gibbous, 83% of the Moon is Illuminated
Oct 18
Waxing Gibbous
Oct 22
Full
Oct 30
Last Quarter
Nov 6
New
Nov 13
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 47.1 °F - 37.2 °F 68% 29.76 in 10.0 mi West 6.9 mph - N/A   Mostly Cloudy
1:55 AM 47.5 °F - 35.8 °F 64% 29.77 in 10.0 mi West 6.9 mph - N/A   Overcast
2:55 AM 49.1 °F - 29.3 °F 46% 29.76 in 10.0 mi WNW 12.7 mph 19.6 mph N/A   Partly Cloudy
3:55 AM 46.0 °F 41.9 °F 33.3 °F 61% 29.78 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
4:55 AM 45.3 °F 41.1 °F 30.4 °F 56% 29.80 in 10.0 mi West 8.1 mph - N/A   Clear
5:55 AM 43.7 °F 39.1 °F 29.8 °F 58% 29.82 in 10.0 mi West 8.1 mph - N/A   Clear
6:55 AM 42.6 °F 38.4 °F 30.6 °F 62% 29.82 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
7:55 AM 44.1 °F 40.1 °F 33.4 °F 66% 29.84 in 10.0 mi West 6.9 mph - N/A   Partly Cloudy
8:55 AM 48.2 °F - 30.7 °F 51% 29.86 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
9:55 AM 51.3 °F - 28.4 °F 41% 29.86 in 10.0 mi West 12.7 mph 20.7 mph N/A   Partly Cloudy
10:55 AM 52.9 °F - 27.5 °F 38% 29.85 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
11:55 AM 54.9 °F - 25.9 °F 33% 29.83 in 10.0 mi West 15.0 mph 20.7 mph N/A   Mostly Cloudy
12:55 PM 56.3 °F - 26.1 °F 31% 29.81 in 10.0 mi NW 15.0 mph 24.2 mph N/A   Mostly Cloudy
1:55 PM 56.8 °F - 27.1 °F 32% 29.79 in 10.0 mi West 13.8 mph 19.6 mph N/A   Mostly Cloudy
2:55 PM 57.2 °F - 26.8 °F 31% 29.78 in 10.0 mi West 15.0 mph 23.0 mph N/A   Mostly Cloudy
3:55 PM 56.1 °F - 27.0 °F 33% 29.79 in 10.0 mi WNW 15.0 mph 21.9 mph N/A   Mostly Cloudy
4:55 PM 53.8 °F - 27.3 °F 36% 29.81 in 10.0 mi WNW 10.4 mph - N/A   Mostly Cloudy
5:55 PM 50.9 °F - 27.7 °F 41% 29.82 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
6:55 PM 47.8 °F - 28.9 °F 48% 29.83 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
7:55 PM 45.0 °F - 32.9 °F 63% 29.84 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:55 PM 43.5 °F - 33.6 °F 68% 29.85 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:55 PM 39.9 °F 37.8 °F 32.5 °F 75% 29.87 in 10.0 mi WSW 3.5 mph - N/A   Scattered Clouds
10:55 PM 36.9 °F 34.3 °F 32.2 °F 83% 29.89 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
11:55 PM 36.9 °F - 32.7 °F 85% 29.89 in 10.0 mi Calm Calm - N/A   Partly Cloudy