Sinclair Wyoming Climate Data

Monthly Average Climate Data for Sinclair Wyoming

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.3 °F32.2 °F0.5 in.
February14.6 °F34.6 °F0.39 in.
March22.4 °F44.8 °F0.88 in.
April28.0 °F53.1 °F1.0 in.
May36.8 °F63.9 °F1.48 in.
June45.0 °F76.3 °F0.87 in.
July51.9 °F84.5 °F0.73 in.
August50.0 °F82.2 °F0.76 in.
September41.3 °F72.7 °F0.82 in.
October30.9 °F57.6 °F0.89 in.
November21.8 °F42.9 °F0.59 in.
December13.5 °F32.2 °F0.59 in.
Annual30.8 °F56.4 °F9.5 in.

Climate Data for Sinclair 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 ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate