Weather History for Chatham, MA

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Thursday, October 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 62 °F -  
Max Temperature 64 °F 62 °F 79 °F (2007)
Min Temperature 60 °F 47 °F 39 °F (1998)
Degree Days  
Heating Degree Days 3    
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 62 °F    
Average Humidity 98    
Maximum Humidity 100    
Minimum Humidity 93    
Precipitation  
Precipitation 0.02 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 2 mph (NNE)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 2 miles    
Events Fog , Rain    
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

Oct. 04, 2012 Rise Set
Actual Time 6:40 AM EDT 6:15 PM EDT
Civil Twilight 6:12 AM EDT 6:43 PM EDT
Nautical Twilight 5:40 AM EDT 7:15 PM EDT
Astronomical Twilight 5:08 AM EDT 7:48 PM EDT
Moon 8:45 PM EDT (10/4) 10:58 AM EDT (10/4)
Length of Visible Light 12h 30m
Length of Day
11h 35m
Waning Gibbous, 82% of the Moon is Illuminated
Oct 4
Waning Gibbous
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
12:52 AM 63.0 °F 62.1 °F 97% 30.14 in 0.8 mi Calm Calm - N/A   Mist
1:52 AM 63.0 °F 63.0 °F 100% 30.14 in 0.5 mi Calm Calm - N/A Fog Fog
2:52 AM 63.0 °F 63.0 °F 100% 30.12 in 0.5 mi Calm Calm - N/A Fog Fog
3:34 AM 62.6 °F 62.6 °F 100% 30.12 in 1.0 mi Calm Calm - N/A   Mist
3:43 AM 62.6 °F 62.6 °F 100% 30.12 in 0.8 mi Calm Calm - N/A   Mist
3:52 AM 63.0 °F 63.0 °F 100% 30.12 in 0.5 mi Calm Calm - N/A Fog Fog
4:52 AM 63.0 °F 63.0 °F 100% 30.12 in 0.5 mi Calm Calm - N/A Fog Fog
5:33 AM 62.6 °F 62.6 °F 100% 30.12 in 1.2 mi Calm Calm - N/A   Overcast
5:52 AM 63.0 °F 62.1 °F 97% 30.12 in 1.0 mi NW 3.5 mph - N/A   Overcast
6:34 AM 62.6 °F 62.6 °F 100% 30.12 in 2.5 mi Calm Calm - 0.01 in Rain Light Rain
6:52 AM 63.0 °F 63.0 °F 100% 30.12 in 3.0 mi Calm Calm - 0.01 in   Overcast
7:07 AM 62.6 °F 62.6 °F 100% 30.12 in 1.8 mi NNW 3.5 mph - N/A   Overcast
7:29 AM 62.6 °F 62.6 °F 100% 30.12 in 2.5 mi NW 3.5 mph - N/A   Overcast
7:52 AM 63.0 °F 63.0 °F 100% 30.13 in 1.2 mi Variable 3.5 mph - N/A   Overcast
8:26 AM 62.6 °F 62.6 °F 100% 30.13 in 0.8 mi Variable 3.5 mph - N/A   Overcast
8:52 AM 64.0 °F 63.0 °F 96% 30.13 in 0.5 mi NNE 3.5 mph - N/A Fog Fog
9:27 AM 64.4 °F 62.6 °F 94% 30.12 in 0.2 mi NE 4.6 mph - N/A Fog Fog
9:44 AM 64.4 °F 64.4 °F 100% 30.12 in 0.5 mi ENE 5.8 mph - N/A Fog Fog
9:52 AM 64.0 °F 63.0 °F 96% 30.12 in 0.5 mi ENE 6.9 mph - N/A Fog Fog
10:14 AM 64.4 °F 62.6 °F 94% 30.12 in 1.2 mi ENE 5.8 mph - N/A   Overcast
10:52 AM 64.0 °F 63.0 °F 96% 30.12 in 1.5 mi ENE 5.8 mph - N/A   Overcast
11:52 AM 64.0 °F 63.0 °F 96% 30.12 in 1.8 mi NNE 4.6 mph - N/A   Overcast
12:03 PM 62.6 °F 62.6 °F 100% 30.11 in 2.0 mi NNE 3.5 mph - N/A   Overcast
12:11 PM 64.4 °F 62.6 °F 94% 30.11 in 1.5 mi NE 3.5 mph - N/A   Overcast
12:52 PM 64.0 °F 63.0 °F 96% 30.10 in 1.2 mi North 3.5 mph - N/A   Overcast
1:52 PM 64.0 °F 63.0 °F 96% 30.08 in 1.2 mi NNE 4.6 mph - N/A   Overcast
2:03 PM 62.6 °F 62.6 °F 100% 30.08 in 0.8 mi Variable 4.6 mph - N/A   Overcast
2:13 PM 62.6 °F 62.6 °F 100% 30.08 in 1.0 mi Variable 3.5 mph - N/A   Overcast
2:36 PM 62.6 °F 62.6 °F 100% 30.07 in 2.0 mi NNE 5.8 mph - N/A   Overcast
2:47 PM 62.6 °F 62.6 °F 100% 30.07 in 1.8 mi NNE 5.8 mph - N/A   Overcast
2:52 PM 63.0 °F 62.1 °F 97% 30.07 in 1.8 mi NNE 6.9 mph - N/A   Overcast
3:05 PM 62.6 °F 62.6 °F 100% 30.06 in 2.5 mi NE 4.6 mph - N/A   Overcast
3:36 PM 62.6 °F 62.6 °F 100% 30.07 in 4.0 mi Variable 3.5 mph - N/A   Overcast
3:52 PM 63.0 °F 61.0 °F 93% 30.07 in 5.0 mi Calm Calm - N/A   Overcast
4:30 PM 62.6 °F 60.8 °F 94% 30.06 in 1.8 mi NNE 4.6 mph - N/A   Overcast
4:47 PM 62.6 °F 60.8 °F 94% 30.05 in 3.0 mi NE 5.8 mph - N/A   Overcast
4:52 PM 62.1 °F 61.0 °F 96% 30.05 in 4.0 mi NNE 5.8 mph - N/A   Overcast
5:17 PM 62.6 °F 60.8 °F 94% 30.04 in 1.5 mi NNE 6.9 mph - N/A   Overcast
5:27 PM 60.8 °F 60.8 °F 100% 30.02 in 0.8 mi NE 6.9 mph - N/A   Overcast
5:40 PM 60.8 °F 60.8 °F 100% 30.03 in 1.8 mi NNE 4.6 mph - N/A   Overcast
5:43 PM 60.8 °F 60.8 °F 100% 30.03 in 3.0 mi NNE 4.6 mph - N/A   Overcast
5:52 PM 62.1 °F 61.0 °F 96% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
6:52 PM 61.0 °F 61.0 °F 100% 30.06 in 4.0 mi Calm Calm - N/A   Overcast
7:23 PM 60.8 °F 60.8 °F 100% 30.06 in 2.0 mi Calm Calm - N/A   Overcast
7:33 PM 60.8 °F 60.8 °F 100% 30.06 in 1.5 mi Calm Calm - N/A   Overcast
7:52 PM 61.0 °F 61.0 °F 100% 30.05 in 1.2 mi Calm Calm - N/A   Overcast
8:13 PM 60.8 °F 60.8 °F 100% 30.04 in 2.0 mi Calm Calm - N/A   Overcast
8:29 PM 60.8 °F 60.8 °F 100% 30.04 in 6.0 mi NW 3.5 mph - N/A   Overcast
9:52 PM 60.1 °F 60.1 °F 100% 30.05 in 3.0 mi Calm Calm - 0.01 in   Overcast
10:04 PM 60.8 °F 60.8 °F 100% 30.05 in 2.5 mi Variable 4.6 mph - N/A   Overcast
10:18 PM 60.8 °F 60.8 °F 100% 30.05 in 4.0 mi Calm Calm - N/A   Overcast
10:52 PM 60.1 °F 59.0 °F 96% 30.04 in 10.0 mi Variable 4.6 mph - N/A   Overcast
11:52 PM 60.1 °F 59.0 °F 96% 30.03 in 9.0 mi Calm Calm - 0.00 in Rain Light Rain