Castroville climate

Castroville Weather in May

NOAA 1991-2020 normals for Lytle 3W, 13.8 km from Castroville

Average highs run from 85°F on May 1 to 91°F on May 31, and lows from 63°F to 70°F. Normal precipitation for the month is 3.38 in over about 8 wet days.

May day by day

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

Normal daily high and low temperature at Castroville, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
87°F
Average low
67°F
Precipitation
3.38 in
Record high
103°FMay 25, 1989
Record low
46°FMay 1, 2005
Chance of a freeze
0%
Days of 90°F or more
11.4
Daylight
13 h 18 min to 13 h 53 min
Cloud cover
61%
Humidity
69%
Dew point
64°F
Wind
10.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
May 185°F63°F100°F 200246°F 200523%
May 285°F64°F99°F 199848°F 200423%
May 385°F64°F100°F 198448°F 200424%
May 485°F64°F101°F 198447°F 198324%
May 585°F64°F101°F 198447°F 197924%
May 685°F65°F102°F 198449°F 197924%
May 785°F65°F100°F 199849°F 198224%
May 885°F65°F97°F 198450°F 198224%
May 985°F65°F99°F 198946°F 198424%
May 1086°F65°F100°F 200652°F 198124%
May 1186°F66°F94°F 198447°F 198124%
May 1286°F66°F98°F 197848°F 197924%
May 1386°F66°F100°F 197849°F 197924%
May 1486°F66°F98°F 200650°F 197924%
May 1586°F67°F96°F 197852°F 197924%
May 1687°F67°F97°F 197851°F 198324%
May 1787°F67°F96°F 198156°F 200624%
May 1887°F67°F96°F 198153°F 198624%
May 1987°F67°F102°F 198951°F 200224%
May 2088°F68°F100°F 198951°F 200224%
May 2188°F68°F98°F 198957°F 198624%
May 2288°F68°F101°F 198952°F 200124%
May 2388°F68°F100°F 198952°F 200124%
May 2489°F68°F101°F 198959°F 197924%
May 2589°F69°F103°F 198962°F 198124%
May 2689°F69°F101°F 198959°F 197924%
May 2790°F69°F98°F 200662°F 199524%
May 2890°F69°F97°F 197962°F 199524%
May 2990°F69°F98°F 199657°F 199224%
May 3090°F70°F99°F 199855°F 198424%
May 3191°F70°F101°F 200452°F 198424%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Castroville, in percent.05101520251102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:54 AM, sunset 8:12 PM
May 31
sunrise 6:37 AM, sunset 8:30 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00415454 (Lytle 3W), public domain. Records: NOAA GHCN-Daily, station USC00415454, 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.