30-year climate normals

Llano County Climate and Weather Averages

Hottest month — August

96.8°

average daily high. The coldest month is January, averaging a low of 33.6°F.

Llano County gets 27.57" of precipitation a year, and 34% of it falls in Apr, May, Jun.

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
January	62.2°	33.6°	1.50"
February	66.0°	38.6°	1.67"
March	72.8°	45.6°	2.43"
April	80.0°	53.4°	2.14"
May	86.1°	63.5°	3.86"
June	92.8°	70.4°	3.27"
July	96.3°	72.8°	1.82"
August	96.8°	72.4°	1.59"
September	90.5°	65.6°	2.34"
October	81.6°	54.9°	3.00"
November	71.2°	43.6°	2.07"
December	63.6°	35.4°	1.88"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 34% falling in the wettest three months (Apr, May, Jun).

January 1.50"

February 1.67"

March 2.43"

April 2.14"

May 3.86"

June 3.27"

July 1.82"

August 1.59"

September 2.34"

October 3.00"

November 2.07"

December 1.88"

Annual total 27.57"

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.

Cooling degree days How much air conditioning the climate demands 2,799

Heating degree days How much heating the climate demands 2,014

Approximate annual cooling cost At 16.44¢/kWh, Texas average $460

Approximate annual electric heating cost Lower where heating is gas rather than electric $116

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 Llano County, where electricity is one line of eight.

Common questions

What is the weather like in Llano County?

Llano County averages a high of 96.8°F in August and a low of 33.6°F in January. Annual precipitation is 27.57 inches, with essentially no snow.

When is the rainy season in Llano County?

The wettest stretch is Apr, May, Jun, which accounts for 34% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Llano County?

The average daily high in August, the hottest month, is 96.8°F. That drives 2,799 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Llano County?

Effectively no. Measurable snowfall is rare in Llano County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station LLANO, TX US (USC00415272), 3 miles from the county centroid.
Heating and cooling degree days — NOAA, same station and period.
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.