Mertzon climate

Mertzon Weather in May

NOAA 1991-2020 normals for Mertzon 12NNW, 20.2 km from Mertzon

Average highs run from 83°F on May 1 to 91°F on May 31, and lows from 53°F to 65°F. Normal precipitation for the month is 2.64 in.

May day by day

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

Normal daily high and low temperature at Mertzon, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
87°F
Average low
59°F
Precipitation
2.64 in
Record high
109°FMay 29, 2011
Record low
34°FMay 3, 2011
Chance of a freeze
1%
Days of 90°F or more
13.0
Daylight
13 h 25 min to 14 h 02 min
Cloud cover
51%
Humidity
52%
Dew point
52°F
Wind
12.8 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 183°F53°F97°F 194843°F 20050%
May 283°F53°F99°F 202041°F 20040%
May 383°F53°F104°F 202034°F 20110%
May 484°F54°F103°F 202039°F 20100%
May 584°F54°F105°F 202039°F 20100%
May 684°F54°F103°F 201447°F 20200%
May 784°F55°F102°F 202248°F 20130%
May 885°F55°F107°F 202247°F 20080%
May 985°F56°F105°F 202240°F 20200%
May 1085°F56°F103°F 202248°F 20190%
May 1185°F56°F99°F 200847°F 20190%
May 1286°F57°F98°F 201445°F 20190%
May 1386°F57°F99°F 202245°F 20190%
May 1486°F58°F103°F 202539°F 20140%
May 1587°F58°F105°F 200340°F 20140%
May 1687°F59°F104°F 202240°F 20140%
May 1787°F59°F102°F 202248°F 20110%
May 1888°F59°F105°F 201349°F 20080%
May 1988°F60°F107°F 202250°F 20190%
May 2088°F60°F107°F 202051°F 20260%
May 2188°F61°F104°F 202250°F 20110%
May 2289°F61°F100°F 200654°F 20030%
May 2389°F62°F103°F 202554°F 20030%
May 2489°F62°F102°F 201148°F 20170%
May 2590°F62°F104°F 202553°F 20220%
May 2690°F63°F103°F 202450°F 20220%
May 2790°F63°F103°F 201756°F 20200%
May 2890°F64°F106°F 201156°F 20040%
May 2991°F64°F109°F 201155°F 20200%
May 3091°F64°F103°F 202252°F 20200%
May 3191°F65°F103°F 201857°F 20170%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mertzon, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

May 1
sunrise 6:58 AM, sunset 8:23 PM
May 31
sunrise 6:40 AM, sunset 8:42 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00415861 (Mertzon 12NNW), public domain. Records: NOAA GHCN-Daily, station USC00417944, 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.