South Houston, TX

Climate overview — based on NOAA 1991-2020 normals from HOUSTON HOBBY AP, TX US.

Cfa Humid subtropical climate 10a USDA hardiness Zone 10a

Year-round temperatures (°F)

40° 60° 80° 100° J F M A M J J A S O N D
Avg high Avg low

Climate summary

South Houston has an annual average temperature of 71.1°F with about 55.6 inches of precipitation per year. The warmest month is August (average high 93.5°F), and the coldest is January (average low 46.1°F). June is typically the wettest month (6.09 in) and February the driest (2.85 in).

Pleasant months
4 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
30.1°F
warmest to coldest month
Heating need
789
Cooling need
3,000

Best time to visit South Houston

Full guide →

Climate change signal

All-time records →

114 of 366 (31.1%) of South Houston'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.

1930s
29
1940s
19
1950s
27
1960s
33
1970s
39
1980s
19
1990s
23
2000s
38
2010s
56
2020s
83

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 63.8°F 46.1°F 55.0°F 4.09 in 10
February 67.6°F 50.1°F 58.8°F 2.85 in 9
March 73.4°F 55.9°F 64.7°F 3.28 in 8
April 79.3°F 61.8°F 70.5°F 4.08 in 8
May 85.9°F 69.3°F 77.6°F 5.42 in 8
June 91.0°F 74.9°F 82.9°F 6.09 in 10
July 92.9°F 76.6°F 84.8°F 4.59 in 9
August 93.5°F 76.7°F 85.1°F 5.44 in 10
September 89.3°F 72.9°F 81.1°F 5.76 in 10
October 82.1°F 63.9°F 73.0°F 5.78 in 7
November 72.6°F 54.0°F 63.3°F 3.90 in 8
December 65.7°F 48.0°F 56.9°F 4.34 in 10

Climate twins of South Houston

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

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