Newcastle Wyoming Climate Data

Monthly Average Climate Data for Newcastle Wyoming

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.6 °F34.8 °F0.49 in.
February14.1 °F37.3 °F0.63 in.
March23.2 °F47.7 °F0.81 in.
April30.8 °F56.4 °F1.75 in.
May40.9 °F65.8 °F2.97 in.
June50.3 °F77.0 °F2.76 in.
July57.1 °F86.3 °F2.42 in.
August55.0 °F85.2 °F2.0 in.
September45.7 °F75.0 °F1.13 in.
October33.2 °F59.5 °F1.26 in.
November22.0 °F45.8 °F0.56 in.
December13.3 °F35.0 °F0.51 in.
Annual33.2 °F58.8 °F17.29 in.

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 : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate