Nashua New Hampshire Climate Data

Monthly Average Climate Data for Nashua New Hampshire

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.8 °C1.2 °C86.11 mm
February-8.8 °C2.8 °C82.55 mm
March-4.3 °C7.2 °C106.93 mm
April1.6 °C14.5 °C103.38 mm
May7.6 °C20.6 °C96.52 mm
June12.8 °C25.7 °C108.97 mm
July15.9 °C28.7 °C91.95 mm
August14.9 °C27.8 °C98.04 mm
September10.6 °C23.7 °C96.77 mm
October3.9 °C16.6 °C122.43 mm
November-1.2 °C10.1 °C96.52 mm
December-6.1 °C4.2 °C109.47 mm
Annual3.1 °C15.3 °C1199.64 mm

Climate Data for Nashua 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 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com