Castle Hills climate

Castle Hills Weather in October

NOAA 1991-2020 normals for San Antonio Intl AP, 3.9 km from Castle Hills

Average highs run from 87°F on October 1 to 77°F on October 31, and lows from 65°F to 55°F. Normal precipitation for the month is 3.75 in over about 6 wet days.

October day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Castle Hills, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
82°F
Average low
60°F
Precipitation
3.75 in
Record high
99°FOct 12, 1991
Record low
27°FOct 31, 1993
Chance of a freeze
3%
Days of 90°F or more
5.6
Daylight
11 h 52 min to 11 h 01 min
Cloud cover
45%
Humidity
68%
Dew point
57°F
Wind
8.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Oct 187°F65°F97°F 198947°F 197421%0%
Oct 286°F65°F97°F 198948°F 196620%0%
Oct 386°F65°F98°F 197947°F 197520%0%
Oct 486°F64°F97°F 202345°F 197520%0%
Oct 586°F64°F94°F 196044°F 197520%0%
Oct 685°F64°F94°F 195146°F 196420%0%
Oct 785°F64°F95°F 195643°F 196420%0%
Oct 885°F63°F96°F 202439°F 195220%0%
Oct 985°F63°F94°F 201438°F 197620%0%
Oct 1084°F63°F97°F 202042°F 199020%0%
Oct 1184°F62°F97°F 202043°F 199020%0%
Oct 1284°F62°F99°F 199141°F 194620%0%
Oct 1383°F62°F97°F 199138°F 197720%0%
Oct 1483°F61°F98°F 202439°F 197721%0%
Oct 1583°F61°F95°F 196242°F 197821%0%
Oct 1682°F61°F94°F 196240°F 197421%0%
Oct 1782°F60°F96°F 199340°F 200121%0%
Oct 1882°F60°F93°F 200745°F 197521%0%
Oct 1981°F60°F93°F 201938°F 198921%0%
Oct 2081°F59°F94°F 202334°F 196621%0%
Oct 2181°F59°F93°F 202336°F 197621%0%
Oct 2280°F58°F90°F 195042°F 196421%0%
Oct 2380°F58°F93°F 198836°F 199621%0%
Oct 2480°F58°F92°F 200141°F 200821%0%
Oct 2579°F57°F91°F 199137°F 198221%0%
Oct 2679°F57°F91°F 198738°F 195521%0%
Oct 2779°F57°F91°F 198034°F 195722%0%
Oct 2878°F56°F91°F 202535°F 195722%0%
Oct 2978°F56°F89°F 197133°F 197022%0%
Oct 3077°F56°F90°F 194734°F 197022%0%
Oct 3177°F55°F90°F 202427°F 199322%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Castle Hills, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

October 1
sunrise 7:27 AM, sunset 7:19 PM
October 31
sunrise 7:47 AM, sunset 6:48 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00012921 (San Antonio Intl AP), public domain. Records: NOAA GHCN-Daily, station USW00012921, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.