Poston Arizona Climate Data

Monthly Average Climate Data for Poston Arizona

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January39.9 °F67.2 °F0.85 in.
February43.0 °F71.0 °F0.7 in.
March48.3 °F78.3 °F0.6 in.
April53.9 °F84.2 °F0.17 in.
May61.9 °F92.5 °F0.08 in.
June69.2 °F100.7 °F0.02 in.
July77.9 °F105.3 °F0.32 in.
August77.6 °F105.0 °F0.55 in.
September70.6 °F99.8 °F0.5 in.
October57.5 °F88.4 °F0.27 in.
November46.0 °F75.9 °F0.24 in.
December38.8 °F65.7 °F0.56 in.
Annual57.1 °F86.2 °F4.86 in.

Climate Data for Poston Arizona

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 1 - Feb. 10
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationBWh - Hot Desert Climate