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
42.1 °F at 12:00a
38.2 °F at 4:47a
High Humidity
Low Humidity
70 % at 4:46a
64 % at 9:28a
High Dewpoint
Low Dewpoint
31.0 °F at 12:00a
29.0 °F at 1:59a
High Wind Speed
8.0 mph at 9:29a
High Barometer
Low Barometer
30.337 in at 9:32a
30.249 in at 12:00a
High Rain Rate
0.00 in/hr at ----
Low Wind Chill
38.0 °F at 3:58a
High Heat Index
41.0 °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.