Austin Weather Averages

The weather at Austin, Texas ranges from hot summers to mild winters. Outside of summer's heat, the city enjoys pleasant temperatures and sunny skies for most of the year.

This page gives detailed information on the annual temperature, precipitation, sun, humidity, wind and storm averages for Austin. The numbers here are historical averages based on climate data gathered at Camp Mabry, located at few miles from downtown Austin.

Temperature

81 °F	annual average high	27 °C
59 °F	annual average low	15 °C

Austin's coldest days of the year usually occur in early January when the daily maximum temperature averages 62 degrees Fahrenheit (17 degrees Celsius) and the minimum averages 41 °F (5 °C).

The year's hottest days are normally in early August. The average temperature peaks then with daily highs of 99 °F (37 °C) and nighttime lows of 76 °F (24 °C).

209 days	80 °F max. or more (27 °C)
47 days	40 °F min. or less (4 °C)

Austin averages 123 days a year when the temperatures reaches into the 90s °F (over 32 °C). Typically on 29 of those days the thermometer soars into the 100s (over 38 °C).

The temperature dips to freezing or below on an average of 12 nights a year. But Austin usually doesn't get as cold as 20 °F (-8 °C).

Precipitation

36.3 in	total precipitation	921 mm
86 days	of rain or snowfall

May is usually the wettest month of the year in Austin, while July is the driest.

Snow

0.2 in	total snowfall	0.5 cm
1 day	with new snow

It doesn't snow every year in Austin. When snow does fall, it usually happens in January or February.

Sun

60 %	sunshine
115 days	clear skies

The sun's rays reach the ground in Austin during 60 percent of daylight hours on average year round, for a total of 2665 hours annually. Typically on 115 days a year the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in Austin averages 12 hours and 10 minutes a day. The shortest days of the year in mid December have 10 hours and 12 minutes of daylight. The year's longest days in mid June last 14:06 from sunrise to sunset.

Humidity

67 %	average humidity

The annual average for relative humidity in Austin ranges throughout the day from 84 percent at 6:00 am to 49 percent at 3:00 pm standard time.

Local Time	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm
Humidity %	75	81	84	73	56	49	53	66

Wind

8.4 mph

wind speed average

13.5 kph

March is usually the windiest month for Austin, and the wind is calmest during September.

Storms

11 days	precipitation of 1 inch (25 mm) or more
41 days	with thunderstorms a year

Thunderstorms occur most often in May, but can appear over Austin any time of the year.

Although uncommon, major hurricanes have approached within 100 miles (165 km) of Austin during August, September and October.