Weather History for Portsmouth, NH

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Tuesday, May 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 54 °F -  
Max Temperature 58 °F 63 °F 91 °F (1996)
Min Temperature 49 °F 44 °F 31 °F (1987)
Degree Days  
Heating Degree Days 12    
Growing Degree Days 4 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 94    
Maximum Humidity 100    
Minimum Humidity 82    
Precipitation  
Precipitation 0.03 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 7 mph (ENE)    
Max Wind Speed 16 mph    
Max Gust Speed 23 mph    
Visibility 6 miles    
Events Fog , Rain , Thunderstorm    
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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Date:

Astronomy

May. 21, 2013 Rise Set
Actual Time 5:13 AM EDT 8:06 PM EDT
Civil Twilight 4:40 AM EDT 8:39 PM EDT
Nautical Twilight 3:58 AM EDT 9:22 PM EDT
Astronomical Twilight 3:09 AM EDT 10:12 PM EDT
Moon 4:11 PM EDT (5/21) 2:46 AM EDT (5/21)
Length of Visible Light 15h 59m
Length of Day
14h 52m
Waxing Gibbous, 84% of the Moon is Illuminated
May 21
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First 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 56.8 °F 56.3 °F 98% 29.97 in 10.0 mi ENE 1.2 mph - N/A   Mostly Cloudy
1:58 AM 56.8 °F 56.1 °F 97% 29.97 in 10.0 mi NNE 2.3 mph - N/A   Mostly Cloudy
2:58 AM 58.1 °F 57.2 °F 97% 29.97 in 10.0 mi East 4.6 mph - N/A   Overcast
3:58 AM 57.6 °F 57.2 °F 99% 29.96 in 7.0 mi NE 5.8 mph - N/A   Overcast
4:29 AM 57.2 °F 57.2 °F 100% 29.94 in 2.5 mi ENE 6.9 mph - N/A   Overcast
4:43 AM 57.2 °F 55.4 °F 94% 29.96 in 0.5 mi ENE 5.8 mph - N/A Fog Fog
4:58 AM 55.4 °F 55.2 °F 99% 29.98 in 3.0 mi ENE 9.2 mph - N/A   Overcast
5:16 AM 55.4 °F 55.4 °F 100% 29.98 in 7.0 mi East 9.2 mph - N/A   Overcast
5:28 AM 55.4 °F 55.4 °F 100% 29.97 in 7.0 mi East 8.1 mph - N/A   Overcast
5:58 AM 55.0 °F 53.1 °F 93% 29.97 in 8.0 mi East 10.4 mph - N/A   Overcast
6:58 AM 55.0 °F 51.1 °F 86% 29.99 in 10.0 mi ESE 6.9 mph - N/A   Overcast
7:58 AM 55.2 °F 51.3 °F 87% 29.98 in 10.0 mi ESE 5.8 mph - N/A   Overcast
8:58 AM 56.7 °F 51.8 °F 84% 29.98 in 10.0 mi ESE 5.8 mph - N/A   Overcast
9:14 AM 57.2 °F 51.8 °F 82% 29.96 in 10.0 mi ESE 5.8 mph - N/A   Overcast
9:58 AM 57.4 °F 54.0 °F 88% 29.97 in 10.0 mi ESE 6.9 mph - N/A   Overcast
10:58 AM 57.0 °F 54.0 °F 89% 29.96 in 10.0 mi East 5.8 mph - N/A   Overcast
11:01 AM 57.2 °F 53.6 °F 88% 29.95 in 5.0 mi East 3.5 mph - N/A Rain , Thunderstorm Light Rain Showers
11:17 AM 55.4 °F 53.6 °F 94% 29.97 in 5.0 mi NE 3.5 mph - N/A Rain Light Rain Showers
11:27 AM 55.4 °F 55.4 °F 100% 29.96 in 7.0 mi ENE 5.8 mph - N/A   Overcast
11:58 AM 57.7 °F 56.5 °F 96% 29.95 in 10.0 mi East 5.8 mph - 0.03 in   Overcast
12:43 PM 57.2 °F 53.6 °F 88% 29.94 in 10.0 mi ENE 12.7 mph - N/A   Overcast
12:58 PM 56.8 °F 52.7 °F 86% 29.96 in 10.0 mi ENE 13.8 mph - N/A   Overcast
1:28 PM 55.4 °F 51.8 °F 88% 29.95 in 10.0 mi ENE 15.0 mph - N/A   Overcast
1:58 PM 55.0 °F 51.6 °F 88% 29.97 in 10.0 mi ENE 10.4 mph - N/A   Overcast
2:29 PM 53.6 °F 51.8 °F 94% 29.98 in 10.0 mi NE 11.5 mph - N/A   Overcast
2:58 PM 53.2 °F 50.7 °F 91% 29.98 in 6.0 mi NE 12.7 mph - 0.00 in   Light Drizzle
3:58 PM 51.6 °F 49.8 °F 94% 30.00 in 2.5 mi NE 10.4 mph 20.7 mph 0.00 in   Light Drizzle
4:43 PM 51.8 °F 50.0 °F 94% 29.98 in 2.8 mi NE 11.5 mph 19.6 mph N/A   Light Drizzle
4:58 PM 50.9 °F 50.0 °F 97% 29.99 in 2.8 mi NE 11.5 mph - 0.00 in   Light Drizzle
5:58 PM 50.2 °F 49.1 °F 96% 30.00 in 2.8 mi NE 15.0 mph 23.0 mph 0.00 in   Light Drizzle
6:28 PM 50.0 °F 48.2 °F 94% 30.00 in 2.2 mi NE 16.1 mph 20.7 mph N/A   Light Drizzle
6:58 PM 49.6 °F 49.3 °F 99% 30.05 in 1.2 mi NE 12.7 mph - 0.00 in   Light Drizzle
7:58 PM 49.1 °F 48.7 °F 99% 30.02 in 1.1 mi ENE 10.4 mph - 0.00 in   Light Drizzle
8:42 PM 50.0 °F 48.2 °F 94% 30.02 in 1.2 mi NE 12.7 mph - N/A   Light Drizzle
8:58 PM 49.1 °F 48.9 °F 99% 30.02 in 1.2 mi NE 11.5 mph - 0.00 in   Light Drizzle
9:58 PM 49.1 °F 48.9 °F 99% 30.02 in 2.0 mi NE 10.4 mph - 0.00 in   Light Drizzle
10:28 PM 50.0 °F 48.2 °F 94% 30.00 in 1.5 mi NE 9.2 mph - N/A   Light Drizzle
10:58 PM 49.1 °F 48.9 °F 99% 29.99 in 1.8 mi NE 8.1 mph - 0.00 in   Light Drizzle
11:13 PM 50.0 °F 50.0 °F 100% 30.02 in 2.0 mi North 10.4 mph - N/A   Light Drizzle
11:58 PM 49.6 °F 49.3 °F 99% 30.06 in 3.0 mi North 5.8 mph - 0.00 in Rain Light Rain