Weather History for Chatham, MA

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Thursday, April 12, 2012

  Actual Average Record
Temperature  
Mean Temperature 44 °F -  
Max Temperature 50 °F 49 °F 76 °F (1977)
Min Temperature 39 °F 36 °F 25 °F (1976)
Degree Days  
Heating Degree Days 20    
Moisture  
Dew Point 39 °F    
Average Humidity 80    
Maximum Humidity 93    
Minimum Humidity 66    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.95 in    
Wind  
Wind Speed 4 mph (NNE)    
Max Wind Speed 10 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events 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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Date:

Astronomy

Apr. 12, 2012 Rise Set
Actual Time 6:04 AM EDT 7:17 PM EDT
Civil Twilight 5:35 AM EDT 7:46 PM EDT
Nautical Twilight 5:01 AM EDT 8:21 PM EDT
Astronomical Twilight 4:25 AM EDT 8:57 PM EDT
Moon 1:05 AM EDT (4/12) 10:52 AM EDT (4/12)
Length of Visible Light 14h 11m
Length of Day
13h 13m
Waning Gibbous, 59% of the Moon is Illuminated
Apr 12
Waning Gibbous
Apr 13
Last Quarter
Apr 21
New
Apr 29
First Quarter
May 5
Full

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 45.0 °F 43.5 °F 41.0 °F 86% 29.86 in 10.0 mi NNE 3.5 mph - N/A   Overcast
1:52 AM 45.0 °F 43.5 °F 41.0 °F 86% 29.85 in 10.0 mi North 3.5 mph - N/A   Overcast
2:52 AM 45.0 °F 43.5 °F 41.0 °F 86% 29.84 in 10.0 mi NNE 3.5 mph - N/A   Overcast
3:52 AM 45.0 °F 43.5 °F 39.9 °F 82% 29.85 in 10.0 mi North 3.5 mph - N/A   Overcast
4:52 AM 43.0 °F 41.3 °F 39.0 °F 86% 29.86 in 10.0 mi Variable 3.5 mph - N/A   Clear
5:52 AM 43.0 °F - 39.0 °F 86% 29.87 in 10.0 mi Calm Calm - N/A   Overcast
6:52 AM 43.0 °F - 39.0 °F 86% 29.88 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:52 AM 45.0 °F - 39.0 °F 80% 29.90 in 10.0 mi Calm Calm - N/A   Overcast
8:52 AM 48.0 °F - 39.9 °F 74% 29.91 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
9:52 AM 50.0 °F - 39.0 °F 66% 29.92 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
10:52 AM 50.0 °F - 39.0 °F 66% 29.94 in 10.0 mi NE 8.1 mph - N/A   Mostly Cloudy
11:52 AM 48.9 °F - 39.9 °F 71% 29.95 in 10.0 mi NE 9.2 mph - N/A   Overcast
12:52 PM 46.9 °F - 41.0 °F 80% 29.95 in 10.0 mi NE 6.9 mph - 0.00 in Rain Light Rain
1:52 PM 46.9 °F - 41.0 °F 80% 29.95 in 9.0 mi NNE 8.1 mph 18.4 mph 0.00 in Rain Light Rain
2:25 PM 46.4 °F 41.9 °F 41.0 °F 81% 29.94 in 10.0 mi NNE 9.2 mph - 0.00 in   Overcast
2:41 PM 46.4 °F 41.5 °F 41.0 °F 81% 29.95 in 10.0 mi NNE 10.4 mph 16.1 mph 0.00 in   Overcast
2:52 PM 46.9 °F - 39.9 °F 77% 29.96 in 10.0 mi NNE 8.1 mph - 0.00 in   Overcast
3:35 PM 48.2 °F - 39.2 °F 71% 29.95 in 10.0 mi NE 9.2 mph - N/A   Overcast
3:52 PM 46.9 °F - 39.9 °F 77% 29.96 in 10.0 mi NNE 9.2 mph 16.1 mph N/A   Overcast
4:52 PM 46.9 °F - 39.0 °F 74% 29.98 in 10.0 mi NNE 8.1 mph 16.1 mph N/A   Overcast
5:03 PM 46.4 °F 41.5 °F 39.2 °F 76% 29.97 in 10.0 mi NE 10.4 mph - N/A   Overcast
5:52 PM 46.9 °F - 39.0 °F 74% 30.00 in 10.0 mi North 4.6 mph - N/A   Overcast
6:52 PM 46.0 °F - 39.0 °F 76% 30.01 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:52 PM 44.1 °F - 37.9 °F 79% 30.02 in 10.0 mi Calm Calm - N/A   Clear
8:52 PM 42.1 °F - 37.9 °F 85% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:03 PM 42.8 °F - 39.2 °F 87% 30.04 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:34 PM 42.8 °F - 37.4 °F 81% 30.04 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:52 PM 41.0 °F - 37.0 °F 86% 30.05 in 10.0 mi Calm Calm - N/A   Clear
10:52 PM 39.0 °F - 37.0 °F 93% 30.06 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:52 PM 39.0 °F - 37.0 °F 93% 30.06 in 10.0 mi Calm Calm - N/A   Partly Cloudy