Annapolis, Maryland Climate Data

Annapolis, Maryland has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 9.7 °C (low) to 18.3 °C (high). Annual precipitation averages 1151.6 Millimeters. Annapolis is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Nov. 1 - Nov. 10.

Avg Annual High18.3 °C
Avg Annual Low9.7 °C
Annual Precipitation1151.6 mm
Hardiness ZoneZone 8a
Growing Season: Last frost around Apr. 1 - Apr. 10 — First frost around Nov. 1 - Nov. 10 — Approximately 75-100 Days frost days per year.

Monthly Average Climate Data for Annapolis, Maryland

Average monthly temperatures and precipitation Switch to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2 °C6.1 °C79.76 mm
February-1.4 °C7.2 °C68.83 mm
March2.4 °C11.4 °C106.43 mm
April8.3 °C17.8 °C86.87 mm
May13.7 °C22.8 °C105.16 mm
June19 °C27.8 °C109.73 mm
July21.8 °C30.3 °C110.49 mm
August21 °C29.3 °C101.6 mm
September17.5 °C25.7 °C112.01 mm
October10.9 °C19.6 °C97.79 mm
November5.1 °C13.4 °C77.72 mm
December0.6 °C8.4 °C95.25 mm
Annual9.7 °C18.3 °C1151.64 mm

Climate Zone Data for Annapolis, Maryland

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost75-100 Days
Plant Hardiness ZoneZone 8a : -12.2°C to -9.4°C
Plant Hardiness Zone - 2012Zone 7b : -15°C to -12.2°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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