Bath New Hampshire Climate Data

Monthly Average Climate Data for Bath New Hampshire

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January6.7 °F27.4 °F2.3 in.
February7.1 °F30.8 °F2.06 in.
March17.2 °F40.0 °F2.36 in.
April29.7 °F53.5 °F2.99 in.
May41.5 °F66.9 °F3.58 in.
June50.8 °F75.1 °F3.99 in.
July56.0 °F80.0 °F4.14 in.
August54.0 °F78.5 °F3.95 in.
September46.6 °F71.1 °F3.59 in.
October35.5 °F57.4 °F4.2 in.
November26.0 °F44.6 °F2.82 in.
December15.0 °F33.0 °F3.08 in.
Annual32.2 °F54.9 °F39.06 in.

Climate Data for Bath New Hampshire

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year