Weather History for Portsmouth, NH

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Monday, August 19, 2013

  Actual Average Record
Temperature  
Mean Temperature 70 °F -  
Max Temperature 81 °F 78 °F 90 °F (1983)
Min Temperature 60 °F 59 °F 42 °F (1988)
Cooling Degree Days 6    
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 71    
Maximum Humidity 95    
Minimum Humidity 48    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 6 mph (WSW)    
Max Wind Speed 10 mph    
Max Gust Speed -    
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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Astronomy

Aug. 19, 2013 Rise Set
Actual Time 5:53 AM EDT 7:39 PM EDT
Civil Twilight 5:23 AM EDT 8:09 PM EDT
Nautical Twilight 4:46 AM EDT 8:46 PM EDT
Astronomical Twilight 4:06 AM EDT 9:25 PM EDT
Moon 6:28 PM EDT (8/19) 4:07 AM EDT (8/19)
Length of Visible Light 14h 46m
Length of Day
13h 45m
Waxing Gibbous, 97% of the Moon is Illuminated
Aug 19
Waxing Gibbous
Aug 20
Full
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:58 AM 64.2 °F - 60.1 °F 86% 30.06 in 8.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
1:58 AM 63.7 °F - 60.4 °F 89% 30.04 in 8.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
2:58 AM 63.0 °F - 60.6 °F 92% 30.04 in 8.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
3:58 AM 62.1 °F - 60.6 °F 95% 30.03 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
4:58 AM 61.0 °F - 59.0 °F 93% 30.02 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
5:58 AM 60.3 °F - 58.3 °F 93% 30.02 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
6:58 AM 61.3 °F - 59.0 °F 92% 30.02 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
7:58 AM 65.3 °F - 59.0 °F 80% 30.02 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
8:58 AM 70.2 °F - 60.3 °F 71% 30.01 in 10.0 mi West 5.8 mph - N/A   Mostly Cloudy
9:58 AM 72.7 °F - 60.3 °F 65% 30.00 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
10:58 AM 77.4 °F - 61.0 °F 57% 29.99 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
11:58 AM 80.1 °F 80.7 °F 58.8 °F 48% 29.99 in 10.0 mi WNW 9.2 mph - N/A   Mostly Cloudy
12:58 PM 80.6 °F 81.4 °F 60.3 °F 50% 29.97 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
1:58 PM 81.5 °F 82.0 °F 60.1 °F 48% 29.95 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
2:58 PM 81.0 °F 81.6 °F 60.1 °F 49% 29.94 in 10.0 mi West 9.2 mph - N/A   Overcast
3:58 PM 80.4 °F 81.2 °F 60.1 °F 50% 29.93 in 10.0 mi West 10.4 mph - N/A   Overcast
4:58 PM 79.5 °F - 59.5 °F 50% 29.93 in 10.0 mi West 8.1 mph - N/A   Overcast
5:58 PM 79.5 °F - 60.4 °F 52% 29.93 in 10.0 mi WSW 9.2 mph - N/A   Scattered Clouds
6:58 PM 76.8 °F - 62.6 °F 61% 29.94 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
7:58 PM 73.6 °F - 61.7 °F 66% 29.95 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
8:58 PM 71.8 °F - 61.7 °F 70% 29.95 in 10.0 mi WSW 5.8 mph - N/A   Mostly Cloudy
9:58 PM 70.3 °F - 62.1 °F 75% 29.96 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
10:58 PM 68.9 °F - 62.1 °F 79% 29.96 in 10.0 mi West 4.6 mph - N/A   Mostly Cloudy
11:58 PM 67.8 °F - 62.1 °F 82% 29.97 in 10.0 mi WSW 6.9 mph - N/A   Scattered Clouds