Cimarron County Climate
Cimarron County, Oklahoma
Avg Annual Temp
56.2°F
Annual Precip
17.0"
Annual Snowfall
26.6"
Extreme Heat Days
71.85
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Cimarron County Weather
High plains and cool extremes
Cimarron County averages 56.2°F annually, which is much closer to the national median than the rest of Oklahoma. Located in the far tip of the Panhandle, its climate is semi-arid and continental.
Oklahoma's coolest and driest corner
At 56.2°F, this is the coldest county in Oklahoma, sitting 4.2 degrees below the state average. It is also the driest, receiving only 17.0 inches of rain compared to the 37.2-inch state average.
Isolated in the high desert
Cimarron stands alone in Oklahoma for its low humidity and high elevation. It experiences much more drastic temperature swings than central or eastern Oklahoma counties.
Snowy winters and sharp heat
The county averages a staggering 26.6 inches of snow, the highest in the state. Despite cool 36.8°F winters, summers still bring 72 days above 90°F due to the intense high-altitude sun.
Prepare for snow and swings
Residents must own reliable snow removal equipment to handle the 2-foot annual snowfall. Xeriscaping is recommended for landscaping due to the extremely low 17 inches of annual precipitation.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.