Austin, Texas Weather and Allergies


The best site for a comprehensive allergy report is AustinPollen.com



What is the weather like in Austin, Texas?

Austin’s climate is technically described as humid subtropical, which means it experiences hot summers and mild winters. More specifically, the summer weather is typically hot and humid, with temperatures rising as high as 100ºF. The winter conditions are usually milder, rarely dropping below freezing point. Rainfall is highest during the spring and fall, but there is a chance of rain at any time. The temperature usually ranges from 43-97ºFthroughout the year, and it rarely falls below 30ºF or above 102ºF.

The humidity is usually only at sauna-like levels just before a rainstorm, but it rarely dips below 30 percent, even when it’s not raining. 

Due to the generally mild climate, allergy season lasts all year. 

What is the lowest temperature in Austin?

The lowest temperature in Austin usually occurs in January or February and can range from the mid-20s to the mid-30s.

The coldest low and overall temperature on record for Camp Mabry in Austin is -2°F on Jan. 31, 1949.  Daily low temperatures are around 73°F, rarely falling below 65°F or exceeding 78°F. The highest daily average low temperature is 75°F on August 11.

What is the highest temperature in Austin?

The highest temperature in Austin usually occurs in July or August and can range from the mid-90s to the 100s.

Austin (at the Camp Mabry weather station) reached 112°F twice since records began over a century ago. It happened on September 5, 2000, and August 28, 2011.

The highest daily average high temperature is 97°F on August 6 Average high temperature is 94°F, typically in August, 94, rarely falling below 83°F or exceeding 102°F.

How many days above a 100°F should we expect in Austin?

Temperatures above 100 degrees are not uncommon in Austin during the summer months, with an average of twenty-two 100-degree days per year:

  • The greatest number of 100-degree days in one year: 90 in 2011
  • The average date of the first 100-degree day: June 29
  • The average date of the last 100-degree day: Sept. 1
  • Earliest 100-degree day: May 4, 1984
  • Latest 100-degree day: Oct. 2, 1938
  • Years without a 100-degree day: 10 (1987, 1979, 1975, 1973, 1968, 1919, 1908, 1907, 1906, 1904)

With an average of only 18 days per year with temperatures at or below freezing, Austin is one of the warmest cities in the United States.

When does it rain in Austin?

Texans say that “Drought ends in floodFlood ends in drought.”

In Austin, rain falls all year round. May is the month with the most rain in Austin, with an average rainfall of 3.8 inches. July is the driest month of the year, with an average rainfall of 1.6 inches.

How often does it snow in Austin?

It doesn’t snow very often in Austin, winter precipitation frequently comes down as sleet or frozen rain. When there is frozen precipitation, it doesn’t last for long, often melting in the afternoon.

The last time it snowed in Austin, February 10-18 of 2021, was historic and record-breaking–The National Weather Service called it “an unprecedented and historical eight-day period of winter weather.” The highest snowfall totals since 1949 were recorded at the city’s two weather stations on Monday. Camp Mabry, which serves as the city’s primary weather station, saw anywhere from 6.4 to 6.5 inches of snow between Sunday night and Monday morning, according to reports from Austin’s main weather station at Camp Mabry.

Austin and Texas’ infrastructure did not deal with this event with power and water outages throughout the state.

How humid is Austin?

In Austin, the humidity levels vary a lot depending on the season.

The muggier period lasts for 6.4 months, from April 15 to October 27, during which the comfort level is muggy, oppressive, or miserable at least 24% of the time. The month with the muggiest days in Austin is July, with 27.3 days that are muggy or worse.

January has the least muggier month in Austin, with 0.6 muggy days.

What zone is Austin for gardening?

Hardiness zones help determine which plants can grow in certain areas based on the climate and minimum temperatures of that zone. Austin is in USDA Hardiness Zone 8b and 9a.

The minimum temperatures of the zone are:

Zone 8b: 15°F to 20°F

Zone 9a: 20°F to 25°F

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