Weather History for Portsmouth, NH

Change the Weather History Date:

Saturday, September 15, 2012

  Actual Average Record
Temperature  
Mean Temperature 64 °F -  
Max Temperature 74 °F 71 °F 89 °F (1993)
Min Temperature 53 °F 52 °F 30 °F (1978)
Degree Days  
Heating Degree Days 1    
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 68    
Maximum Humidity 96    
Minimum Humidity 39    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.01 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 20 mph    
Max Gust Speed 26 mph    
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

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 15, 2012 Rise Set
Actual Time 6:23 AM EDT 6:52 PM EDT
Civil Twilight 5:54 AM EDT 7:20 PM EDT
Nautical Twilight 5:21 AM EDT 7:54 PM EDT
Astronomical Twilight 4:46 AM EDT 8:29 PM EDT
Moon 5:51 AM EDT (9/15) 6:19 PM EDT (9/15)
Length of Visible Light 13h 26m
Length of Day
12h 29m
Waning Crescent, 0% of the Moon is Illuminated
Sep 15
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 64.0 °F 60.8 °F 89% 30.05 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
1:55 AM 63.3 °F 60.8 °F 91% 30.03 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
2:55 AM 62.2 °F 60.3 °F 93% 30.01 in 10.0 mi SSW 8.1 mph - N/A   Mostly Cloudy
3:55 AM 61.9 °F 60.1 °F 94% 29.99 in 10.0 mi SW 8.1 mph - N/A   Scattered Clouds
4:55 AM 62.2 °F 60.8 °F 95% 29.99 in 7.0 mi SW 8.1 mph - N/A   Mostly Cloudy
5:55 AM 61.7 °F 60.6 °F 96% 29.98 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
6:55 AM 62.1 °F 60.3 °F 94% 30.00 in 7.0 mi West 6.9 mph - N/A   Mostly Cloudy
7:49 AM 62.6 °F 60.8 °F 94% 30.01 in 10.0 mi West 8.1 mph - N/A Rain Light Rain Showers
7:55 AM 63.3 °F 60.6 °F 91% 30.01 in 10.0 mi West 6.9 mph - 0.00 in Rain Light Rain Showers
8:09 AM 62.6 °F 59.0 °F 88% 30.01 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
8:55 AM 63.5 °F 57.7 °F 81% 30.02 in 10.0 mi West 6.9 mph - 0.00 in   Mostly Cloudy
9:55 AM 67.8 °F 56.1 °F 66% 30.01 in 10.0 mi West 11.5 mph - N/A   Mostly Cloudy
10:55 AM 70.9 °F 54.0 °F 55% 30.00 in 10.0 mi West 10.4 mph 18.4 mph N/A   Scattered Clouds
11:55 AM 72.3 °F 51.3 °F 47% 29.99 in 10.0 mi West 13.8 mph 21.9 mph N/A   Scattered Clouds
12:55 PM 73.2 °F 48.7 °F 42% 29.98 in 10.0 mi NW 19.6 mph - N/A   Scattered Clouds
1:55 PM 72.7 °F 47.1 °F 40% 29.97 in 10.0 mi NW 16.1 mph 23.0 mph N/A   Scattered Clouds
2:55 PM 71.4 °F 45.9 °F 40% 29.97 in 10.0 mi NW 18.4 mph - N/A   Scattered Clouds
3:55 PM 72.3 °F 46.4 °F 40% 29.97 in 10.0 mi NW 15.0 mph - N/A   Scattered Clouds
4:55 PM 69.4 °F 43.3 °F 39% 29.97 in 10.0 mi NNW 18.4 mph 26.5 mph N/A   Scattered Clouds
5:55 PM 67.6 °F 43.3 °F 41% 29.99 in 10.0 mi WNW 15.0 mph 20.7 mph N/A   Partly Cloudy
6:55 PM 63.3 °F 43.5 °F 48% 30.01 in 10.0 mi WNW 11.5 mph - N/A   Partly Cloudy
7:55 PM 60.4 °F 43.7 °F 54% 30.03 in 10.0 mi WNW 8.1 mph - N/A   Partly Cloudy
8:55 PM 58.3 °F 43.7 °F 58% 30.04 in 10.0 mi WNW 8.1 mph - N/A   Clear
9:55 PM 56.7 °F 44.4 °F 64% 30.04 in 10.0 mi West 6.9 mph - N/A   Clear
10:55 PM 55.2 °F 44.8 °F 68% 30.04 in 10.0 mi West 5.8 mph - N/A   Clear
11:55 PM 53.8 °F 44.6 °F 71% 30.04 in 10.0 mi West 5.8 mph - N/A   Clear