Union New Hampshire Climate Data

Monthly Average Climate Data for Union New Hampshire

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.3 °C-0.8 °C86.87 mm
February-9.9 °C0.8 °C88.39 mm
March-5.3 °C5.4 °C101.6 mm
April0.8 °C12.9 °C104.39 mm
May7 °C19.7 °C93.98 mm
June12.3 °C24.6 °C112.01 mm
July15.4 °C27.5 °C106.17 mm
August14.7 °C26.6 °C98.04 mm
September10.4 °C22.2 °C97.28 mm
October4.2 °C14.9 °C127.25 mm
November-1.2 °C8.3 °C104.39 mm
December-6.3 °C2.3 °C116.33 mm
Annual2.7 °C13.7 °C1236.7 mm

Climate Data for Union New Hampshire

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com