Weather History for Portsmouth, NH

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Wednesday, September 17, 2014

  Actual Average Record
Temperature  
Mean Temperature 57 °F -  
Max Temperature 69 °F 70 °F 87 °F (1991)
Min Temperature 46 °F 52 °F 31 °F (1986)
Degree Days  
Heating Degree Days 8    
Growing Degree Days 7 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 82    
Maximum Humidity 100    
Minimum Humidity 43    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.97 in    
Wind  
Wind Speed 4 mph (WSW)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 8 miles    
Events Fog    
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. 17, 2014 Rise Set
Actual Time 6:25 AM EDT 6:49 PM EDT
Civil Twilight 5:56 AM EDT 7:18 PM EDT
Nautical Twilight 5:22 AM EDT 7:51 PM EDT
Astronomical Twilight 4:48 AM EDT 8:26 PM EDT
Moon 12:15 AM EDT (9/17) 3:03 PM EDT (9/17)
Length of Visible Light 13h 21m
Length of Day
12h 24m
Waning Crescent, 35% of the Moon is Illuminated
Sep 17
Waning Crescent
Sep 24
New
Oct 1
First Quarter
Oct 8
Full
Oct 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 52.0 °F 50.9 °F 96% 29.98 in 8.0 mi NW 2.3 mph - N/A Fog Patches of Fog
1:28 AM 51.8 °F 50.0 °F 94% 29.97 in 8.0 mi West 2.3 mph - N/A Fog Patches of Fog
1:58 AM 48.2 °F 47.1 °F 96% 29.98 in 7.0 mi SSW 3.5 mph - N/A Fog Patches of Fog
2:13 AM 48.2 °F 46.4 °F 93% 29.97 in 7.0 mi West 2.3 mph - N/A   Partly Cloudy
2:21 AM 48.2 °F 48.2 °F 100% 29.97 in 0.8 mi Variable 2.3 mph - N/A   Mostly Cloudy
2:28 AM 50.0 °F 48.2 °F 94% 29.97 in 0.5 mi North 3.5 mph - N/A Fog Fog
2:34 AM 50.0 °F 50.0 °F 100% 29.97 in 0.1 mi NNW 4.6 mph - N/A Fog Fog
2:43 AM 50.0 °F 50.0 °F 100% 29.96 in 0.1 mi NW 8.1 mph - N/A Fog Fog
2:58 AM 51.1 °F 50.4 °F 97% 29.97 in 7.0 mi NW 5.8 mph - N/A   Scattered Clouds
3:26 AM 50.0 °F 50.0 °F 100% 29.96 in 7.0 mi NW 2.3 mph - N/A   Partly Cloudy
3:58 AM 49.3 °F 48.4 °F 97% 29.98 in 7.0 mi NW 4.6 mph - N/A   Partly Cloudy
4:58 AM 48.6 °F 47.7 °F 97% 29.98 in 7.0 mi NW 5.8 mph - N/A   Clear
5:58 AM 46.6 °F 45.5 °F 96% 29.99 in 7.0 mi WNW 3.5 mph - N/A   Clear
6:58 AM 47.5 °F 46.4 °F 96% 30.00 in 7.0 mi WNW 4.6 mph - N/A   Clear
7:58 AM 52.5 °F 50.2 °F 92% 30.01 in 10.0 mi WNW 5.8 mph - N/A   Clear
8:58 AM 57.4 °F 51.1 °F 79% 30.01 in 10.0 mi NW 5.8 mph - N/A   Clear
9:58 AM 61.5 °F 49.8 °F 65% 30.01 in 10.0 mi Variable 3.5 mph - N/A   Clear
10:58 AM 65.7 °F 48.7 °F 54% 30.00 in 10.0 mi Variable 2.3 mph - N/A   Partly Cloudy
11:58 AM 67.3 °F 44.1 °F 43% 30.00 in 10.0 mi Variable 2.3 mph - N/A   Partly Cloudy
12:58 PM 68.7 °F 45.7 °F 44% 29.98 in 10.0 mi SSE 3.5 mph - N/A   Scattered Clouds
1:58 PM 64.4 °F 48.2 °F 56% 29.95 in 10.0 mi SSE 5.8 mph - N/A   Scattered Clouds
2:58 PM 66.9 °F 46.9 °F 49% 29.95 in 10.0 mi SE 4.6 mph - N/A   Scattered Clouds
3:58 PM 67.3 °F 48.2 °F 50% 29.94 in 10.0 mi SSE 4.6 mph - N/A   Scattered Clouds
4:58 PM 64.8 °F 51.6 °F 62% 29.94 in 10.0 mi South 9.2 mph - N/A   Scattered Clouds
5:58 PM 62.4 °F 49.8 °F 63% 29.95 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
6:58 PM 59.2 °F 53.1 °F 80% 29.95 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
7:58 PM 57.2 °F 53.8 °F 88% 29.97 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
8:58 PM 57.0 °F 53.6 °F 88% 29.97 in 10.0 mi SSE 4.6 mph - N/A   Overcast
9:58 PM 54.5 °F 50.9 °F 88% 29.96 in 10.0 mi SSW 5.8 mph - N/A   Partly Cloudy
10:58 PM 52.9 °F 49.5 °F 88% 29.95 in 10.0 mi West 3.5 mph - N/A   Clear
11:58 PM 51.4 °F 50.2 °F 95% 29.95 in 10.0 mi Calm Calm - N/A   Clear