Weather History for Chatham, MA

Change the Weather History Date:

Sunday, September 16, 2012

  Actual Average Record
Temperature  
Mean Temperature 60 °F -  
Max Temperature 69 °F 68 °F 77 °F (1998)
Min Temperature 51 °F 55 °F 44 °F (2001)
Degree Days  
Heating Degree Days 5    
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 70    
Maximum Humidity 93    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 1 mph (NW)    
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

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 16, 2012 Rise Set
Actual Time 6:21 AM EDT 6:46 PM EDT
Civil Twilight 5:53 AM EDT 7:14 PM EDT
Nautical Twilight 5:20 AM EDT 7:47 PM EDT
Astronomical Twilight 4:47 AM EDT 8:20 PM EDT
Moon 6:58 AM EDT (9/16) 6:48 PM EDT (9/16)
Length of Visible Light 13h 20m
Length of Day
12h 25m
New Moon, 0% of the Moon is Illuminated
Sep 16
New Moon
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Oct 15
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 61.0 °F 45.0 °F 56% 30.05 in 10.0 mi Calm Calm - N/A   Clear
1:52 AM 54.0 °F 46.9 °F 77% 30.04 in 10.0 mi Calm Calm - N/A   Clear
2:52 AM 53.1 °F 48.0 °F 83% 30.04 in 10.0 mi Calm Calm - N/A   Clear
3:52 AM 51.1 °F 46.9 °F 86% 30.04 in 10.0 mi Calm Calm - N/A   Clear
4:52 AM 52.0 °F 48.9 °F 89% 30.05 in 10.0 mi Calm Calm - N/A   Clear
5:52 AM 51.1 °F 48.9 °F 92% 30.06 in 10.0 mi Calm Calm - N/A   Clear
6:52 AM 53.1 °F 51.1 °F 93% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:52 AM 63.0 °F 50.0 °F 63% 30.09 in 10.0 mi Variable 5.8 mph - N/A   Clear
9:52 AM 64.0 °F 48.0 °F 56% 30.09 in 10.0 mi Variable 5.8 mph - N/A   Clear
11:52 AM 66.0 °F 48.9 °F 54% 30.06 in 10.0 mi NW 5.8 mph - N/A   Clear
12:52 PM 64.9 °F 48.0 °F 54% 30.06 in 10.0 mi Variable 4.6 mph - N/A   Partly Cloudy
1:52 PM 69.1 °F 48.9 °F 49% 30.04 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
2:52 PM 66.0 °F 48.0 °F 52% 30.03 in 10.0 mi WNW 4.6 mph - N/A   Scattered Clouds
3:52 PM 66.0 °F 48.9 °F 54% 30.01 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:52 PM 68.0 °F 48.9 °F 50% 30.01 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:52 PM 66.0 °F 50.0 °F 56% 30.01 in 10.0 mi ENE 3.5 mph - N/A   Clear
6:52 PM 60.1 °F 51.1 °F 72% 30.02 in 10.0 mi Calm Calm - N/A   Clear
7:52 PM 57.9 °F 52.0 °F 81% 30.04 in 10.0 mi Calm Calm - N/A   Clear
8:52 PM 55.0 °F 51.1 °F 86% 30.04 in 10.0 mi Calm Calm - N/A   Clear
9:52 PM 55.0 °F 48.9 °F 80% 30.04 in 10.0 mi West 3.5 mph - N/A   Clear
10:52 PM 53.1 °F 46.9 °F 80% 30.05 in 10.0 mi Calm Calm - N/A   Clear
11:52 PM 54.0 °F 48.0 °F 80% 30.06 in 10.0 mi WNW 3.5 mph - N/A   Clear