Green Valley Maryland Climate Data

Monthly Average Climate Data for Green Valley Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.4 °F41.3 °F3.12 in.
February25.9 °F44.5 °F2.71 in.
March32.6 °F53.3 °F3.88 in.
April42.3 °F65.5 °F3.46 in.
May52.4 °F74.2 °F4.35 in.
June61.3 °F82.6 °F4.52 in.
July66.3 °F86.9 °F4.36 in.
August64.1 °F85.0 °F3.48 in.
September57.3 °F78.4 °F4.52 in.
October45.7 °F66.8 °F3.93 in.
November35.4 °F55.5 °F3.34 in.
December28.9 °F45.3 °F3.68 in.
Annual44.7 °F64.9 °F45.35 in.

Climate Data for Green Valley Maryland

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation