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Phoenix Monsoon Season Facts

Longest Monsoon Season: 104 days in 1966
Shortest Monsoon Season: 34 days in 1979
Mean Length of Season: 69 days
Earliest Start Date: June 16th in 1925
Latest Start Date: July 25th in 1987
Mean Start Date: July 6th
Earliest End Date: August 19th in 2000 & 2004
Latest End Date: October 10th in 1977 and 1983
Mean End Date: September 13th
Maximum Rainfall: 9.38in. in 1984
Minimum Rainfall: 0.35in. in 1924
Mean Rainfall: 2.54in. (1948-2009)
Most Thunderstorm Days: 29 in 1984
Fewest Thunderstorm Days: 5 in 1991 & 1993
Mean Thunderstorm Days: 16.42 (1948-2009)

Phoenix Dew Point Tracker

Number of Monsoon Days since June 15th: 0
Yesterdays High Dew Point: 0°F
Yesterdays Low Dew Point: 0°F
Yesterdays Average Dew Point: 0°F

Average, Daily Maximum and Daily Minimum For The Current Month
--- High Dew Point       --- Low Dew Point       --- Average Dew Point


Average, Daily Maximum and Daily Minimum For June through September 2011
--- High Dew Point       --- Low Dew Point       --- Average Dew Point