Gretna Nebraska Climate Data

Monthly Average Climate Data for Gretna Nebraska

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10 °C0.1 °C21.08 mm
February-7.9 °C2.8 °C28.96 mm
March-2 °C9.8 °C45.72 mm
April3.8 °C16.8 °C82.55 mm
May10.6 °C22.4 °C125.22 mm
June16.7 °C28.1 °C129.03 mm
July18.7 °C29.9 °C85.85 mm
August17.4 °C28.8 °C102.87 mm
September12.3 °C25.3 °C77.72 mm
October5.4 °C18.1 °C66.04 mm
November-1.7 °C9.6 °C36.07 mm
December-7.3 °C2.4 °C33.78 mm
Annual4.7 °C16.2 °C834.89 mm

Climate Data for Gretna Nebraska

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsExtreme Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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