Chester County
Temperature Summary (1923-2006)
Highest Maximum: 106 F, August 31, 1983, july 20, 1926
Lowest Minimum: -5 F, December 13, 1962
Annual Average:
Maximum 72.8 F
Mean 60.6 F
Minimum 48.5 F
Precipitation Summary (1922-2006)
Highest Daily Rainfall: 8.4 Inches, August 23, 1967
Annual Average Rainfall: 46.37 Inches
Wettest Year: 1964, 64.63 Inches
Driest Year: 1950, 31.73 Inches
Mean Snowfall: 3.2 Inches
Largest Snowfall: 8.0 Inches, 2002
Extreme Events (*Date through August 2006)
10 Tornadoes (1950-2006)
Total cost of all tornadoes= $7.64 million
4 Injuries from all the tornadoes
1 death from all the tornadoes
89 Wind Events (thunderstorm winds exceeding 60 miles per hour)
51 Hail Events (1955-2006)
Total damage= $n/a
0 Lightning Events (1993-2006)
Total damage= $0
0 Lightning-related Injuries
0 Deaths from Lightning
Following data from 1993-2006
14 Total Floods
4 Flash Floods
8 River Floods
2 Urban Floods
31 Ice, Sleet or Snow
17 Extreme Cold Events
171 Months in Moderate to extreme according to Palmer Drought Severity Index computed by Regional Drought Monitor
