Parmer County Climate
Parmer County, Texas
Avg Annual Temp
56.8°F
Annual Precip
19.3"
Annual Snowfall
13.0"
Extreme Heat Days
68.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Parmer County Weather
A Cooler, Semi-Arid High Plains Climate
Parmer County's 56.8°F average annual temperature is much closer to the national median than most of Texas. With only 19.3 inches of rain, it is significantly drier than the average U.S. county.
Much Cooler Than the Rest of Texas
While the Texas average temperature is 65.5°F, Parmer County sits at a much lower 56.8°F. It is also quite dry, receiving 19.3 inches of rain compared to the 31.9-inch state average.
Shared Trends with the Northern Panhandle
Parmer County shares the cold-winter, dry-summer profile of neighboring Potter County. It is one of the few places in Texas where snowfall is a regular part of the annual weather cycle.
True Winters and Modest Summer Heat
Winter is cold, averaging 38.2°F with 13 inches of annual snow. Summer is more manageable than elsewhere in the state, with only 68 days topping 90°F and a July average of 77.3°F.
Winterize for Snow and Cold Winds
Unlike most Texans, Parmer County residents need snow shovels and heavy coats for the 13 inches of annual snowfall. Summer cooling needs are lower here, as extreme heat days are relatively limited.
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.