Wilton Maine Climate Data

Monthly Average Climate Data for Wilton Maine

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.7 °F26.7 °F3.45 in.
February8.9 °F29.9 °F3.03 in.
March19.0 °F38.5 °F3.73 in.
April31.0 °F51.8 °F4.13 in.
May41.9 °F64.9 °F3.85 in.
June51.5 °F73.3 °F5.04 in.
July56.9 °F78.5 °F4.0 in.
August54.9 °F77.5 °F3.9 in.
September46.9 °F70.1 °F3.53 in.
October36.6 °F56.7 °F5.52 in.
November26.9 °F43.9 °F4.28 in.
December16.3 °F32.7 °F4.3 in.
Annual33.2 °F53.7 °F48.76 in.

Climate Data for Wilton Maine

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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