Brenham, TX

Climate overview — based on NOAA 1991-2020 normals from BRENHAM, TX US.

Cfa Humid subtropical climate 9a USDA hardiness Zone 9a

Year-round temperatures (°F)

30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Brenham has an annual average temperature of 68°F with about 48 inches of precipitation per year. The warmest month is August (average high 95.0°F), and the coldest is January (average low 39.6°F). May is typically the wettest month (5.39 in) and July the driest (2.58 in).

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
34.2°F
warmest to coldest month
Heating need
1,500
Cooling need
2,571

Best time to visit Brenham

Full guide →

Climate change signal

All-time records →

21 of 366 (5.7%) of Brenham's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s
0
1900s
8
1910s
30
1920s
101
1930s
31
1940s
17
1950s
36
1960s
29
1970s
18
1980s
19
1990s
24
2000s
22
2010s
13
2020s
18

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 60.8°F 39.6°F 50.2°F 3.66 in 10
February 64.4°F 43.0°F 53.7°F 3.36 in 9
March 71.0°F 49.2°F 60.1°F 3.63 in 9
April 78.1°F 56.6°F 67.4°F 3.56 in 7
May 84.8°F 65.0°F 74.9°F 5.39 in 7
June 90.9°F 71.6°F 81.2°F 4.46 in 8
July 93.7°F 73.8°F 83.8°F 2.58 in 6
August 95.0°F 73.7°F 84.4°F 3.83 in 6
September 89.8°F 68.4°F 79.1°F 4.59 in 7
October 81.4°F 58.5°F 69.9°F 5.07 in 7
November 70.1°F 48.2°F 59.1°F 4.21 in 8
December 62.5°F 41.3°F 51.9°F 3.69 in 9

Climate twins of Brenham

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

Compare Brenham to another city