Ector County climate

Ector County Weather in May

NOAA 1991-2020 normals for Penwell, 15.5 km from Ector County

Average highs run from 85°F on May 1 to 95°F on May 31, and lows from 56°F to 67°F. Normal precipitation for the month is 1.42 in over about 4 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 Ector County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
90°F
Average low
62°F
Precipitation
1.42 in
Record high
109°FMay 24, 2000
Record low
33°FMay 3, 2013
Chance of a freeze
1%
Days of 90°F or more
16.7
Daylight
13 h 27 min to 14 h 06 min
Cloud cover
44%
Humidity
43%
Dew point
45°F
Wind
11.9 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
May 185°F56°F99°F 202045°F 20048%0%
May 285°F56°F101°F 202039°F 20048%0%
May 385°F57°F101°F 202033°F 20139%0%
May 486°F57°F101°F 202046°F 20139%0%
May 586°F58°F102°F 200045°F 20139%0%
May 686°F58°F103°F 200043°F 19999%0%
May 787°F58°F104°F 202248°F 19999%0%
May 887°F59°F105°F 200950°F 200810%0%
May 987°F59°F101°F 202248°F 202010%0%
May 1087°F59°F100°F 200043°F 201910%0%
May 1188°F60°F103°F 200045°F 201910%0%
May 1288°F60°F99°F 200950°F 202110%0%
May 1388°F61°F102°F 200642°F 201010%0%
May 1489°F61°F101°F 200341°F 201410%0%
May 1589°F61°F103°F 200347°F 201411%0%
May 1689°F62°F105°F 200049°F 200611%0%
May 1790°F62°F105°F 202253°F 201611%0%
May 1890°F62°F104°F 200351°F 201611%0%
May 1990°F63°F104°F 202248°F 200011%0%
May 2091°F63°F103°F 200650°F 200311%0%
May 2191°F63°F100°F 200651°F 201511%0%
May 2292°F64°F99°F 202550°F 200111%0%
May 2392°F64°F106°F 200056°F 201711%0%
May 2492°F64°F109°F 200051°F 201712%0%
May 2593°F65°F102°F 200046°F 202212%0%
May 2693°F65°F99°F 200050°F 202012%0%
May 2793°F65°F104°F 201158°F 200912%0%
May 2894°F66°F106°F 202257°F 200412%0%
May 2994°F66°F103°F 201854°F 201912%0%
May 3094°F66°F107°F 201858°F 201612%0%
May 3195°F67°F105°F 200859°F 201512%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Ector County, in percent, and of at least 0.1 inch of snowfall.02.557.51012.51102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 7:04 AM, sunset 8:31 PM
May 31
sunrise 6:45 AM, sunset 8:51 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00416932 (Penwell), public domain. Records: NOAA GHCN-Daily, station USW00003031, 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.