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Climate
Statistics · City
Average daily low in San Antonio
1991–2020 · 1 data point
Updated Oct 21, 2026
Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1991–2020
Weather through the year long-term average 1991–2020 · San Antonio Intl Ap weather station, 13 km away
64°
41°
Jan
68°
46°
Feb
74°
52°
Mar
81°
59°
Apr
87°
67°
May
93°
73°
Jun
96°
75°
Jul
97°
75°
Aug
91°
70°
Sep
83°
61°
Oct
72°
50°
Nov
65°
43°
Dec
2.0
1.7
2.3
2.4
4.4
3.3
2.4
2.2
3.9
3.8
2.1
2.0
High and low, °F
Precipitation, inches
Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1991–2020
What it means
The typical coolest temperature of the day, usually at night, averaged over the year.
How it is calculated
Mean of the twelve monthly normals of the daily minimum at the nearest weather station: 1991–2020, or the latest ten years where the older record is missing.
Climate
South Texas in numbers