Great Falls Virginia Climate Data

Monthly Average Climate Data for Great Falls Virginia

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.7 °F42.8 °F3.03 in.
February27.2 °F46.1 °F2.68 in.
March33.9 °F54.5 °F3.82 in.
April44.0 °F66.4 °F3.38 in.
May53.7 °F74.5 °F4.41 in.
June62.5 °F82.7 °F4.39 in.
July67.4 °F87.1 °F4.23 in.
August65.7 °F85.4 °F3.45 in.
September59.0 °F78.7 °F4.38 in.
October46.9 °F67.2 °F3.78 in.
November36.7 °F56.5 °F3.21 in.
December29.9 °F46.7 °F3.59 in.
Annual46.1 °F65.7 °F44.35 in.

Climate Data for Great Falls Virginia

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate