Wales Rainfall
At Wales in Guyana, for a period of record spanning 1979 – 2014
average annual rainfall sum = 2225.7 mm
wettest year on record = 3569 mm of rainfall in 2008
driest year on record = 1305.6 mm of rainfall in 1997
wettest month on average = 302.9 mm of rainfall in June
wettest month on record = 989 mm of rainfall in January 2005
peak of wet season = May to July on average with an average of 853.7 mm of rainfall
wettest 3-month period on record = 1430.1 mm of rainfall in Nov. to Jan. 2008
driest month on average = 104.6 mm of rainfall in October
driest month on record = 4.8 mm of rainfall in March 1981
peak of dry season on average = Sept. to Nov. with 384.7 mm of rainfall
driest 3-month period on record = 59.9 mm of rainfall in Mar. to May 1986
Below are links to charts of Monthly and Seasonal rainfall values. Click on each of the thumbnail images to see the respective full image.