Environmental Field
Laboratory at the College
of William and Mary
Weather observations are recorded at 10 minute intervals and are available
for download in weekly, tab delimited files.
(Weather 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003
(beginning in April))
Daily Average, Monthly Averages
(How to cite Keck Weather data) (Disclaimers Below)
High Temperature
Low Temperature
69.5 °F at 12:51a
66.3 °F at 3:53a
High Humidity
Low Humidity
87 % at 3:39a
83 % at 12:00a
High Dewpoint
Low Dewpoint
65.0 °F at 12:51a
62.0 °F at 3:26a
High Wind Speed
10.0 mph at 2:55a
High Barometer
Low Barometer
29.868 in at 12:50a
29.811 in at 3:53a
High Rain Rate
1.08 in/hr at 3:01a
Low Wind Chill
66.0 °F at 3:47a
High Heat Index
71.0 °F at 12:00a
Rainfall totals are unofficial and are not
checked for accuracy.
Due to a terminal failure with the weather station, Data from April 10,
2007- May 21, 2007 may be inaccurate . A new station went on line May
23, 2007
Due to Terminal failure with Console Station Barometer readings may be inaccurate from July 1 2014- July 27, 2015. New console went online July 27,2015.
On March 3rd and March 4th, 2023 the rainfall gauge malfunctioned and recorded incorrect rain levels. Subtract 2,105.9mm (82.91 inches) of rain from March and 2023 annual data.