Oswego New York Climate Data

Monthly Average Climate Data for Oswego New York

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.1 °F31.6 °F3.82 in.
February19.5 °F33.0 °F2.9 in.
March26.3 °F39.9 °F3.03 in.
April36.9 °F51.7 °F3.46 in.
May47.8 °F64.3 °F3.33 in.
June57.3 °F73.3 °F3.37 in.
July63.4 °F78.4 °F3.39 in.
August62.2 °F77.8 °F3.45 in.
September55.2 °F71.3 °F3.89 in.
October44.7 °F58.8 °F4.59 in.
November35.0 °F47.8 °F4.11 in.
December25.4 °F37.2 °F3.91 in.
Annual41 °F55.4 °F43.25 in.

Climate Data for Oswego New York

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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