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Zip code 80923, Colorado Springs CO is in USDA Hardiness Zone 5a: -20F to -15F. Using updated climate data through 2010, 80923 is in the Plantmaps Hardiness Zone 5b: -15F to -10F. The average first frost in 80923 is between September 21 - 31, while the average last frost occurs between May 11 - 20.80923 is part of Ecoregion 26j-Foothill Grasslands. 80923 rarely has days where the temperatue exceeds 86Â°F.The average annual high temperature in 80923 is 60Â°F and the average annual low temperature is 31Â°F. The average high temperature in July (Summer) is 80Â°F, while the average high temperature in January (Winter) is 41Â°F.he average first frost in 80923 is between September 21 - 31, while the average last frost occurs between May 11 - 20. 80923 is part of Ecoregion 26j-Foothill Grasslands. 80923 rarely has days where the temperatue exceeds 86Â°F.
The highest monthly average temperature in Fort Irwin for July is 92 degrees. The lowest monthly average temperature in Fort Irwin for December is 46 degrees. The most monthly precipitation in Fort Irwin occurs in February with 0.6 inches. The air quality index in Fort Irwin is 63% better than the national average. The pollution index in Fort Irwin is 313% worse than the national average.