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Statistics · City
Normal annual rainfall 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
How much rain and snow (as water) falls in a typical year.
How it is calculated
Sum of the twelve monthly precipitation normals at the nearest weather station: 1991–2020, or the latest ten years; months with a few missing days are scaled up.