Weather History for Portsmouth, NH

Change the Weather History Date:

Sunday, September 30, 2012

  Actual Average Record
Temperature  
Mean Temperature 56 °F -  
Max Temperature 58 °F 64 °F 85 °F (1986)
Min Temperature 51 °F 44 °F 23 °F (1978)
Degree Days  
Heating Degree Days 10    
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 96    
Maximum Humidity 100    
Minimum Humidity 88    
Precipitation  
Precipitation 0.33 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.78 in    
Wind  
Wind Speed 5 mph (West)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 7 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. 30, 2012 Rise Set
Actual Time 6:40 AM EDT 6:25 PM EDT
Civil Twilight 6:11 AM EDT 6:53 PM EDT
Nautical Twilight 5:38 AM EDT 7:26 PM EDT
Astronomical Twilight 5:05 AM EDT 7:59 PM EDT
Moon 6:24 PM EDT (9/30) 7:09 AM EDT (9/30)
Length of Visible Light 12h 42m
Length of Day
11h 45m
Full, 100% of the Moon is Illuminated
Sep 30
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter
Oct 29
Full

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 54.3 °F 53.2 °F 96% 29.91 in 7.0 mi North 3.5 mph - N/A   Overcast
1:55 AM 54.3 °F 53.2 °F 96% 29.91 in 7.0 mi North 3.5 mph - N/A   Overcast
2:55 AM 54.0 °F 53.2 °F 97% 29.89 in 3.0 mi North 4.6 mph - N/A   Overcast
3:55 AM 53.8 °F 53.2 °F 98% 29.88 in 4.0 mi North 4.6 mph - N/A   Overcast
4:55 AM 54.0 °F 53.4 °F 98% 29.88 in 6.0 mi North 3.5 mph - N/A   Overcast
5:55 AM 54.0 °F 53.1 °F 97% 29.87 in 7.0 mi North 3.5 mph - N/A   Overcast
6:55 AM 54.0 °F 52.9 °F 96% 29.86 in 6.0 mi Variable 5.8 mph - N/A   Overcast
7:30 AM 53.6 °F 53.6 °F 100% 29.86 in 6.0 mi North 5.8 mph - N/A Rain Light Rain
7:55 AM 54.0 °F 53.1 °F 97% 29.86 in 5.0 mi North 4.6 mph - 0.00 in Rain Light Rain
8:55 AM 54.1 °F 53.4 °F 97% 29.86 in 7.0 mi North 4.6 mph - 0.01 in Rain Light Rain
9:55 AM 54.7 °F 54.0 °F 97% 29.84 in 4.0 mi NNW 5.8 mph - 0.06 in Rain Rain
10:55 AM 55.2 °F 54.5 °F 97% 29.81 in 4.0 mi NW 6.9 mph - 0.05 in Rain Light Rain
11:55 AM 55.6 °F 54.1 °F 95% 29.80 in 5.0 mi NNW 5.8 mph - 0.05 in Rain Rain
12:55 PM 55.6 °F 55.0 °F 98% 29.76 in 4.0 mi NNW 6.9 mph - 0.12 in Rain Heavy Rain
1:55 PM 56.3 °F 55.8 °F 98% 29.75 in 5.0 mi West 4.6 mph - 0.04 in   Overcast
2:55 PM 57.2 °F 55.8 °F 95% 29.73 in 7.0 mi WSW 5.8 mph - 0.00 in Rain Light Rain
3:55 PM 57.4 °F 55.8 °F 94% 29.70 in 7.0 mi West 5.8 mph - 0.00 in Rain Light Rain
4:15 PM 57.2 °F 55.4 °F 94% 29.71 in 10.0 mi SW 4.6 mph - N/A   Overcast
4:55 PM 57.6 °F 55.4 °F 92% 29.70 in 10.0 mi SW 6.9 mph - 0.00 in   Overcast
5:22 PM 59.0 °F 55.4 °F 88% 29.70 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
5:55 PM 57.4 °F 54.7 °F 91% 29.70 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
6:55 PM 55.2 °F 54.0 °F 96% 29.70 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
7:55 PM 54.1 °F 53.2 °F 97% 29.69 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
8:38 PM 53.6 °F 53.6 °F 100% 29.69 in 8.0 mi South 8.1 mph - N/A   Scattered Clouds
8:55 PM 53.8 °F 53.4 °F 99% 29.69 in 8.0 mi South 9.2 mph - N/A   Mostly Cloudy
9:14 PM 53.6 °F 53.6 °F 100% 29.69 in 8.0 mi South 9.2 mph - N/A   Partly Cloudy
9:55 PM 53.1 °F 52.2 °F 97% 29.70 in 10.0 mi South 8.1 mph - N/A   Partly Cloudy
10:55 PM 52.2 °F 50.7 °F 95% 29.69 in 10.0 mi South 6.9 mph - N/A   Partly Cloudy
11:55 PM 51.4 °F 50.0 °F 95% 29.69 in 10.0 mi SSW 6.9 mph - N/A   Partly Cloudy