Johnstown Nebraska Climate Data

Monthly Average Climate Data for Johnstown Nebraska

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.4 °C1.8 °C11.18 mm
February-9.1 °C3.4 °C16.26 mm
March-4.3 °C9.3 °C29.72 mm
April0.9 °C14.5 °C67.31 mm
May7.2 °C20.4 °C100.33 mm
June13 °C26.3 °C98.55 mm
July16.2 °C30.4 °C77.72 mm
August14.9 °C29.1 °C70.36 mm
September9.6 °C24.9 °C59.69 mm
October2.2 °C16.9 °C45.97 mm
November-4.2 °C9.4 °C17.27 mm
December-9.2 °C2.9 °C13.97 mm
Annual2.2 °C15.8 °C608.33 mm

Climate Data for Johnstown Nebraska

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com