Weather History for Chatham, MA

Change the Weather History Date:

Wednesday, September 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 58 °F -  
Max Temperature 71 °F 68 °F 75 °F (1992)
Min Temperature 45 °F 54 °F 45 °F (2013)
Degree Days  
Heating Degree Days 8    
Growing Degree Days 8 (Base 50)    
Moisture  
Dew Point 47 °F    
Average Humidity 67    
Maximum Humidity 93    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.25 in    
Wind  
Wind Speed 4 mph (West)    
Max Wind Speed 9 mph    
Max Gust Speed 16 mph    
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. 18, 2013 Rise Set
Actual Time 6:23 AM EDT 6:43 PM EDT
Civil Twilight 5:55 AM EDT 7:11 PM EDT
Nautical Twilight 5:22 AM EDT 7:44 PM EDT
Astronomical Twilight 4:49 AM EDT 8:17 PM EDT
Moon 6:04 PM EDT (9/18) 5:21 AM EDT (9/18)
Length of Visible Light 13h 15m
Length of Day
12h 20m
Waxing Gibbous, 99% of the Moon is Illuminated
Sep 18
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

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 43.0 °F 93% 30.33 in 10.0 mi NW 3.5 mph - N/A   Clear
1:52 AM 46.0 °F 44.8 °F 43.0 °F 89% 30.32 in 10.0 mi NW 3.5 mph - N/A   Clear
2:52 AM 48.0 °F - 45.0 °F 89% 30.31 in 10.0 mi NW 3.5 mph - N/A   Clear
3:52 AM 48.0 °F - 45.0 °F 89% 30.31 in 10.0 mi NW 3.5 mph - N/A   Clear
4:52 AM 48.0 °F - 45.0 °F 89% 30.29 in 10.0 mi NW 3.5 mph - N/A   Clear
5:52 AM 48.9 °F - 46.0 °F 90% 30.30 in 10.0 mi NW 3.5 mph - N/A   Clear
6:52 AM 50.0 °F - 46.9 °F 89% 30.31 in 10.0 mi NW 3.5 mph - N/A   Clear
7:52 AM 55.9 °F - 50.0 °F 80% 30.32 in 10.0 mi Variable 3.5 mph - N/A   Clear
8:52 AM 61.0 °F - 50.0 °F 67% 30.31 in 10.0 mi Variable 4.6 mph - N/A   Clear
9:52 AM 64.9 °F - 46.0 °F 50% 30.31 in 10.0 mi Variable 4.6 mph - N/A   Clear
10:52 AM 66.0 °F - 44.1 °F 45% 30.30 in 10.0 mi Variable 4.6 mph - N/A   Clear
11:52 AM 69.1 °F - 41.0 °F 36% 30.28 in 10.0 mi Variable 3.5 mph - N/A   Clear
12:52 PM 70.0 °F - 39.9 °F 33% 30.27 in 10.0 mi Variable 4.6 mph - N/A   Clear
1:52 PM 69.1 °F - 45.0 °F 42% 30.25 in 10.0 mi Variable 4.6 mph - N/A   Clear
2:52 PM 70.0 °F - 45.0 °F 41% 30.22 in 10.0 mi SW 9.2 mph 16.1 mph N/A   Clear
3:52 PM 69.1 °F - 46.0 °F 44% 30.21 in 10.0 mi WSW 8.1 mph - N/A   Clear
4:52 PM 66.9 °F - 46.9 °F 49% 30.20 in 10.0 mi SW 8.1 mph - N/A   Clear
5:52 PM 64.0 °F - 48.9 °F 58% 30.20 in 10.0 mi SW 9.2 mph 16.1 mph N/A   Clear
6:52 PM 62.1 °F - 48.9 °F 62% 30.18 in 10.0 mi Variable 5.8 mph - N/A   Clear
7:52 PM 61.0 °F - 48.0 °F 62% 30.18 in 10.0 mi WSW 6.9 mph - N/A   Clear
8:52 PM 61.0 °F - 51.1 °F 70% 30.19 in 10.0 mi WSW 6.9 mph - N/A   Clear
9:52 PM 60.1 °F - 53.1 °F 78% 30.18 in 10.0 mi WSW 5.8 mph - N/A   Clear
10:52 PM 59.0 °F - 52.0 °F 78% 30.18 in 10.0 mi West 4.6 mph - N/A   Clear
11:52 PM 57.9 °F - 52.0 °F 81% 30.17 in 10.0 mi West 3.5 mph - N/A   Clear