Mammoth Wyoming Climate Data

Monthly Average Climate Data for Mammoth Wyoming

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.8 °F30.6 °F0.87 in.
February12.1 °F34.1 °F0.74 in.
March19.7 °F42.6 °F1.12 in.
April26.2 °F50.6 °F1.45 in.
May34.3 °F60.4 °F1.91 in.
June41.5 °F70.0 °F1.96 in.
July47.5 °F81.1 °F1.27 in.
August45.9 °F80.2 °F1.1 in.
September38.7 °F69.8 °F1.24 in.
October29.0 °F54.2 °F1.36 in.
November19.0 °F38.9 °F1.2 in.
December11.4 °F29.7 °F0.95 in.
Annual28.1 °F53.5 °F15.17 in.

Climate Data for Mammoth Wyoming

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year