Stratham New Hampshire Climate Data

Monthly Average Climate Data for Stratham New Hampshire

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.1 °C0.9 °C89.92 mm
February-8.3 °C2.4 °C86.87 mm
March-4 °C6.6 °C111.76 mm
April1.6 °C13.4 °C112.01 mm
May7.2 °C19.2 °C100.33 mm
June12.6 °C24.4 °C107.95 mm
July15.7 °C27.6 °C95.5 mm
August14.9 °C27 °C87.88 mm
September10.6 °C22.9 °C102.36 mm
October4.3 °C16.1 °C125.73 mm
November-0.7 °C9.9 °C100.84 mm
December-5.5 °C3.8 °C116.08 mm
Annual3.3 °C14.5 °C1237.23 mm

Climate Data for Stratham New Hampshire

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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