Newcastle Wyoming Climate Data

Monthly Average Climate Data for Newcastle Wyoming

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-10.8 °C1.6 °C12.45 mm
February-9.9 °C2.9 °C16 mm
March-4.9 °C8.7 °C20.57 mm
April-0.7 °C13.6 °C44.45 mm
May4.9 °C18.8 °C75.44 mm
June10.2 °C25 °C70.1 mm
July13.9 °C30.2 °C61.47 mm
August12.8 °C29.6 °C50.8 mm
September7.6 °C23.9 °C28.7 mm
October0.7 °C15.3 °C32 mm
November-5.6 °C7.7 °C14.22 mm
December-10.4 °C1.7 °C12.95 mm
Annual0.7 °C14.9 °C439.15 mm

Climate Data for Newcastle Wyoming

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 4b : -31.7°C to -28.9°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate