Castle Hills climate

Castle Hills Weather in March

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

Average highs run from 70°F on March 1 to 77°F on March 31, and lows from 48°F to 55°F. Normal precipitation for the month is 2.31 in over about 9 wet days.

March 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.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

March at a glance

Average high
74°F
Average low
52°F
Precipitation
2.31 in
Record high
100°FMar 6, 1991
Record low
19°FMar 2, 1980
Chance of a freeze
44%
Days of 90°F or more
0.5
Daylight
11 h 34 min to 12 h 27 min
Cloud cover
62%
Humidity
69%
Dew point
50°F
Wind
10.3 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
Mar 170°F48°F88°F 200628°F 196227%
Mar 271°F49°F91°F 199919°F 198027%
Mar 371°F49°F87°F 202625°F 200227%
Mar 471°F49°F88°F 196319°F 200227%
Mar 571°F49°F94°F 199126°F 196627%
Mar 671°F50°F100°F 199124°F 196627%
Mar 772°F50°F87°F 197526°F 198927%
Mar 872°F50°F90°F 200626°F 194727%
Mar 972°F50°F88°F 200925°F 199627%
Mar 1072°F51°F95°F 195426°F 199627%
Mar 1173°F51°F94°F 195421°F 194827%
Mar 1273°F51°F93°F 202522°F 194827%
Mar 1373°F51°F93°F 197123°F 194827%
Mar 1473°F51°F96°F 200827°F 199327%
Mar 1574°F52°F98°F 202631°F 198827%
Mar 1674°F52°F92°F 197127°F 194727%
Mar 1774°F52°F88°F 197232°F 194727%
Mar 1874°F52°F95°F 201332°F 198027%
Mar 1975°F53°F90°F 197428°F 198826%
Mar 2075°F53°F93°F 197626°F 196526%0%
Mar 2175°F53°F93°F 202628°F 196526%0%
Mar 2275°F53°F96°F 197132°F 195526%0%
Mar 2376°F53°F96°F 199531°F 196826%0%
Mar 2476°F54°F93°F 195428°F 195226%0%
Mar 2576°F54°F91°F 195534°F 200625%0%
Mar 2676°F54°F97°F 195031°F 195525%0%
Mar 2777°F54°F96°F 198434°F 195525%0%
Mar 2877°F55°F100°F 197129°F 195525%0%
Mar 2977°F55°F94°F 200035°F 198725%0%
Mar 3077°F55°F93°F 197430°F 200325%0%
Mar 3177°F55°F90°F 197431°F 198724%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.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

March 1
sunrise 7:00 AM, sunset 6:34 PM
March 31
sunrise 7:25 AM, sunset 7:52 PM

Every day of March: 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.