Merrimac Virginia Climate Data

Monthly Average Climate Data for Merrimac Virginia

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.7 °F42.6 °F3.07 in.
February26.0 °F46.2 °F2.78 in.
March32.2 °F54.5 °F3.63 in.
April41.5 °F65.0 °F3.81 in.
May50.7 °F73.0 °F4.46 in.
June58.7 °F79.8 °F4.17 in.
July62.6 °F83.0 °F3.95 in.
August61.4 °F82.0 °F3.51 in.
September54.7 °F76.4 °F3.56 in.
October43.3 °F66.4 °F2.99 in.
November32.8 °F55.6 °F2.87 in.
December27.2 °F46.0 °F3.31 in.
Annual42.9 °F64.2 °F42.11 in.

Climate Data for Merrimac Virginia

Average First Frost DateOct. 11 - Oct. 20
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 ConditionsModerate Drought
Köppen Climate ClassificationCfb - Temperate Oceanic Climate
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