Reston Virginia Climate Data

Monthly Average Climate Data for Reston Virginia

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.3 °F42.7 °F3.05 in.
February26.8 °F46.0 °F2.67 in.
March33.7 °F54.4 °F3.82 in.
April43.9 °F66.1 °F3.37 in.
May53.6 °F74.2 °F4.45 in.
June62.4 °F82.7 °F4.43 in.
July67.4 °F87.2 °F4.34 in.
August65.5 °F85.5 °F3.52 in.
September58.8 °F78.8 °F4.32 in.
October46.5 °F67.3 °F3.79 in.
November36.4 °F56.6 °F3.23 in.
December29.5 °F46.6 °F3.6 in.
Annual45.8 °F65.7 °F44.59 in.

Climate Data for Reston Virginia

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation