Jefferson New York Climate Data

Monthly Average Climate Data for Jefferson New York

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.4 °F29.6 °F2.99 in.
February12.8 °F31.6 °F2.44 in.
March19.9 °F39.9 °F3.52 in.
April30.8 °F54.1 °F3.67 in.
May41.3 °F66.4 °F3.89 in.
June50.8 °F73.9 °F4.62 in.
July55.1 °F77.7 °F4.51 in.
August53.9 °F76.8 °F4.36 in.
September47.1 °F70.3 °F4.18 in.
October36.8 °F58.3 °F4.5 in.
November27.8 °F44.6 °F3.3 in.
December19.7 °F34.7 °F3.37 in.
Annual34 °F54.8 °F45.35 in.

Climate Data for Jefferson New York

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 11 - Jun. 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
2024 plantmaps.com