Alamo Heights, TX

Climate overview — based on NOAA 1991-2020 normals from SAN ANTONIO INCARNATE WORD, TX US.

Cfa Humid subtropical climate 9b USDA hardiness Zone 9b

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

Alamo Heights has an annual average temperature of 69°F with about 34 inches of precipitation per year. The warmest month is August (average high 95.3°F), and the coldest is January (average low 40.2°F). May is typically the wettest month (4.38 in) and February the driest (1.87 in).

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
33°F
warmest to coldest month
Heating need
1,269
Cooling need
2,694

Best time to visit Alamo Heights

Full guide →

Climate change signal

All-time records →

98 of 366 (26.8%) of Alamo Heights'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.

1990s
40
2000s
163
2010s
103
2020s
60

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 63.2°F 40.2°F 51.7°F 2.21 in 8
February 67.5°F 43.8°F 55.6°F 1.87 in 10
March 73.8°F 51.0°F 62.4°F 2.38 in 9
April 80.1°F 57.4°F 68.7°F 2.32 in 6
May 85.7°F 65.7°F 75.7°F 4.38 in 8
June 91.7°F 72.0°F 81.9°F 3.55 in 7
July 94.0°F 74.1°F 84.1°F 2.41 in 7
August 95.3°F 74.1°F 84.7°F 2.43 in 4
September 89.5°F 68.8°F 79.2°F 3.90 in 8
October 81.7°F 59.2°F 70.5°F 3.93 in 8
November 71.4°F 49.0°F 60.2°F 2.48 in 7
December 64.2°F 41.4°F 52.8°F 2.11 in 0.1 in 8

Climate twins of Alamo Heights

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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