Blanco, TX

Climate overview — based on NOAA 1991-2020 normals from BLANCO, 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

Blanco has an annual average temperature of 65.5°F with about 34.8 inches of precipitation per year. The warmest month is August (average high 94.2°F), and the coldest is January (average low 35.3°F). May is typically the wettest month (4.95 in) and July the driest (1.84 in).

Pleasant months
2 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
34.5°F
warmest to coldest month
Heating need
1,866
Cooling need
2,049

Best time to visit Blanco

Full guide →

Climate change signal

All-time records →

1 of 366 (0.3%) of Blanco'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
9
1900s
4
1910s
39
1920s
42
1930s
121
1940s
42
1950s
29
1960s
19
1970s
16
1980s
11
1990s
8
2000s
17
2010s
9
2020s
0

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 59.7°F 35.3°F 47.5°F 2.32 in 7
February 63.5°F 39.0°F 51.3°F 1.93 in 7
March 70.2°F 46.1°F 58.2°F 2.86 in 8
April 77.4°F 52.6°F 65.0°F 2.77 in 7
May 83.3°F 61.8°F 72.6°F 4.95 in 8
June 89.8°F 68.3°F 79.1°F 3.21 in 6
July 93.0°F 70.5°F 81.8°F 1.84 in 4
August 94.2°F 69.8°F 82.0°F 2.12 in 5
September 88.0°F 64.0°F 76.0°F 3.72 in 6
October 79.0°F 54.7°F 66.8°F 3.96 in 6
November 68.4°F 44.6°F 56.5°F 2.90 in 6
December 61.2°F 37.3°F 49.3°F 2.23 in 0.1 in 7

Climate twins of Blanco

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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