Weather History for Chatham, MA

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Thursday, July 12, 2012

  Actual Average Record
Temperature  
Mean Temperature 69 °F -  
Max Temperature 80 °F 75 °F 88 °F (1997)
Min Temperature 60 °F 60 °F 54 °F (2002)
Cooling Degree Days 4    
Growing Degree Days 19 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 64    
Maximum Humidity 96    
Minimum Humidity 34    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 2 mph (SSE)    
Max Wind Speed 7 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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Date:

Astronomy

Jul. 12, 2012 Rise Set
Actual Time 5:16 AM EDT 8:14 PM EDT
Civil Twilight 4:43 AM EDT 8:47 PM EDT
Nautical Twilight 4:01 AM EDT 9:29 PM EDT
Astronomical Twilight 3:11 AM EDT 10:18 PM EDT
Moon 12:20 AM EDT (7/12) 2:42 PM EDT (7/12)
Length of Visible Light 16h 04m
Length of Day
14h 57m
Waning Crescent, 35% of the Moon is Illuminated
Jul 12
Waning Crescent
Jul 19
New
Jul 26
First Quarter
Aug 1
Full
Aug 9
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 62.1 °F 59.0 °F 90% 30.21 in 10.0 mi Calm Calm - N/A   Clear
1:52 AM 61.0 °F 59.0 °F 93% 30.20 in 10.0 mi Calm Calm - N/A   Clear
2:52 AM 61.0 °F 59.0 °F 93% 30.20 in 10.0 mi Calm Calm - N/A   Clear
3:52 AM 61.0 °F 59.0 °F 93% 30.20 in 10.0 mi Calm Calm - N/A   Clear
4:52 AM 60.1 °F 59.0 °F 96% 30.20 in 10.0 mi Calm Calm - N/A   Clear
5:52 AM 61.0 °F 59.0 °F 93% 30.21 in 10.0 mi Calm Calm - N/A   Clear
6:52 AM 66.9 °F 61.0 °F 81% 30.22 in 10.0 mi Calm Calm - N/A   Clear
7:52 AM 71.1 °F 62.1 °F 73% 30.22 in 10.0 mi East 3.5 mph - N/A   Clear
8:52 AM 73.0 °F 59.0 °F 61% 30.22 in 10.0 mi East 5.8 mph - N/A   Clear
9:52 AM 73.9 °F 55.9 °F 53% 30.21 in 10.0 mi East 5.8 mph - N/A   Clear
10:52 AM 75.0 °F 55.0 °F 50% 30.22 in 10.0 mi ESE 4.6 mph - N/A   Clear
11:52 AM 77.0 °F 53.1 °F 43% 30.22 in 10.0 mi Calm Calm - N/A   Clear
12:52 PM 78.1 °F 51.1 °F 39% 30.21 in 10.0 mi East 6.9 mph - N/A   Clear
1:52 PM 78.1 °F 48.0 °F 35% 30.19 in 10.0 mi East 6.9 mph - N/A   Clear
2:52 PM 78.1 °F 50.0 °F 37% 30.18 in 10.0 mi Variable 4.6 mph - N/A   Clear
3:52 PM 77.0 °F 46.9 °F 34% 30.18 in 10.0 mi Variable 4.6 mph - N/A   Clear
4:52 PM 77.0 °F 54.0 °F 45% 30.18 in 10.0 mi SW 6.9 mph - N/A   Clear
5:52 PM 75.9 °F 53.1 °F 45% 30.17 in 10.0 mi SSW 6.9 mph - N/A   Clear
6:52 PM 73.9 °F 51.1 °F 45% 30.17 in 10.0 mi SW 5.8 mph - N/A   Clear
7:52 PM 71.1 °F 57.0 °F 61% 30.17 in 10.0 mi SW 6.9 mph - N/A   Clear
8:52 PM 71.1 °F 62.1 °F 73% 30.18 in 10.0 mi SW 6.9 mph - N/A   Clear
9:52 PM 71.1 °F 62.1 °F 73% 30.19 in 10.0 mi SW 6.9 mph - N/A   Clear
10:52 PM 71.1 °F 63.0 °F 75% 30.20 in 10.0 mi SW 3.5 mph - N/A   Clear