Weather History for Portsmouth, NH

Change the Weather History Date:

Week of September 2, 2012 through September 8, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 86 °F 77 °F 66 °F
Mean Temperature 74 °F 69 °F 61 °F
Min Temperature 66 °F 61 °F 56 °F
Degree Days  
Heating Degree Days (base 65) 4 1 0 4
Cooling Degree Days (base 65) 10 5 0 34
Growing Degree Days (base 50) 24 19 11 132
Dew Point  
Dew Point 74 °F 63 °F 53 °F
Precipitation  
Precipitation 0.43 in 0.15 in 0.00 in 1.02 in
Snowdepth - - - -
Wind  
Wind 23 mph 4 mph 0 mph
Gust Wind 32 mph 22 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.24 in 29.94 in 29.62 in

Weekly Weather History Graph

Weekly 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. 06, 2012 Rise Set
Actual Time 6:13 AM EDT 7:08 PM EDT
Civil Twilight 5:44 AM EDT 7:37 PM EDT
Nautical Twilight 5:10 AM EDT 8:11 PM EDT
Astronomical Twilight 4:34 AM EDT 8:47 PM EDT
Moon 10:05 PM EDT (9/6) 12:20 PM EDT (9/6)
Length of Visible Light 13h 52m
Length of Day
12h 54m
Waning Gibbous, 67% of the Moon is Illuminated
Sep 6
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
2 72 64 58 60 58 56 96 86 58 30.17 30.12 30.09 10 10 7 12 3 - 0.02 Rain
3 74 65 57 60 58 55 100 84 60 30.24 30.19 30.16 10 9 2 12 5 - 0.00 Fog
4 66 61 56 66 62 53 100 95 82 30.16 30.04 29.87 10 5 0 10 3 - 0.43 Fog , Rain
5 82 74 66 74 68 63 100 90 62 29.86 29.77 29.67 10 7 0 14 6 18 0.25 Fog , Rain
6 79 72 64 66 65 63 100 87 61 29.90 29.86 29.83 10 10 8 10 2 - 0.00  
7 86 74 63 70 65 55 100 80 34 29.92 29.88 29.83 10 9 5 9 3 - 0.00  
8 81 72 64 71 68 62 100 88 63 29.89 29.74 29.62 10 6 1 23 8 32 0.32 Rain , Thunderstorm