Olney Maryland Climate Data

Monthly Average Climate Data for Olney Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.1 °F41.6 °F3.19 in.
February26.6 °F44.7 °F2.84 in.
March33.4 °F53.2 °F4.06 in.
April43.3 °F65.2 °F3.54 in.
May53.2 °F73.6 °F4.5 in.
June61.8 °F81.9 °F4.51 in.
July66.4 °F86.1 °F4.34 in.
August64.7 °F84.2 °F3.74 in.
September58.3 °F77.6 °F4.46 in.
October46.5 °F66.1 °F3.94 in.
November36.6 °F55.4 °F3.27 in.
December29.5 °F45.5 °F3.75 in.
Annual45.5 °F64.6 °F46.14 in.

Climate Data for Olney Maryland

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
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