30-year climate normals
Jeff Davis County Climate and Weather Averages
Hottest month: June
86.8°average daily high. The coldest month is January, averaging a low of 32.3°F.
Jeff Davis County gets 18.98" of precipitation a year and 6.2" of snow, and 55% of it falls in Jul, Aug, Sep.
Temperature through the year
Each bar spans the average daily low to the average daily high for that month.
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| January | 55.1° | 32.3° | 0.62" | 1.8" |
| February | 59.2° | 34.8° | 0.49" | 1.0" |
| March | 66.2° | 39.4° | 0.43" | 0.1" |
| April | 73.2° | 45.3° | 0.51" | 0.0" |
| May | 80.9° | 53.3° | 1.38" | 0.0" |
| June | 86.8° | 59.3° | 2.50" | 0.0" |
| July | 85.0° | 59.6° | 3.99" | 0.0" |
| August | 83.8° | 59.4° | 3.45" | 0.0" |
| September | 79.0° | 55.1° | 2.96" | 0.0" |
| October | 73.5° | 48.5° | 1.40" | 0.1" |
| November | 63.5° | 39.4° | 0.67" | 0.4" |
| December | 55.8° | 33.4° | 0.58" | 2.8" |
Rainfall by month
Jeff Davis County has a distinct wet season. 55% of the year's precipitation arrives in Jul, Aug, Sep.
What this climate costs you
Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.
These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Jeff Davis County, where electricity is one line of eight.
Common questions
What is the weather like in Jeff Davis County?
Jeff Davis County averages a high of 86.8°F in June and a low of 32.3°F in January. Annual precipitation is 18.98 inches, including 6.2 inches of snow.
When is the rainy season in Jeff Davis County?
The wettest stretch is Jul, Aug, Sep, which accounts for 55% of the year's precipitation. That is a pronounced wet season rather than rain spread evenly through the year.
How hot does it get in Jeff Davis County?
The average daily high in June, the hottest month, is 86.8°F. That drives 989 cooling degree days a year, which is what your air conditioning has to work against.
Does it snow in Jeff Davis County?
Yes. Jeff Davis County averages 6.2 inches of snow a year.
Sources
- Temperature, precipitation and snowfall normals: NOAA National Centers for Environmental Information, 1991 to 2020 Monthly Climate Normals, station MT LOCKE, TX US (USC00416104), 11.4 miles from the county centroid.
- Heating and cooling degree days: NOAA, same station and period.
- Annual figures on this page are the sum of that station's twelve monthly normals. NOAA also publishes a separately-computed annual normal, which can differ from the monthly sum by a few percent; we use the monthly series because the month-by-month breakdown above has to come from it.
- Electricity price: US Energy Information Administration, Electric Power Monthly Table 5.6.A, Texas residential average.
- Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.