McKinney climate

McKinney Weather in August

NOAA 1991-2020 normals for Mckinney Muni AP, 3 km from McKinney

Average highs run from 97°F on August 1 to 93°F on August 31, and lows from 75°F to 70°F. Normal precipitation for the month is 1.73 in over about 5 wet days.

August day by day

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

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

August at a glance

Average high
96°F
Average low
73°F
Precipitation
1.73 in
Record high
109°FAug 3, 2011
Record low
54°FAug 12, 2004
Chance of a freeze
0%
Days of 90°F or more
27.0
Daylight
13 h 46 min to 12 h 53 min
Cloud cover
43%
Humidity
60%
Dew point
67°F
Wind
7.6 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
Aug 197°F75°F107°F 201263°F 201816%0%
Aug 297°F75°F108°F 201164°F 201416%0%
Aug 397°F75°F109°F 201167°F 202616%0%
Aug 497°F75°F107°F 201167°F 202516%0%
Aug 597°F74°F106°F 201168°F 201416%0%
Aug 697°F74°F109°F 200369°F 200516%0%
Aug 797°F74°F106°F 201368°F 199817%0%
Aug 897°F74°F104°F 201166°F 200417%0%
Aug 997°F74°F107°F 201166°F 200217%0%
Aug 1097°F74°F105°F 199867°F 200317%0%
Aug 1197°F74°F104°F 200063°F 200417%0%
Aug 1296°F74°F104°F 201254°F 200418%0%
Aug 1396°F74°F104°F 202361°F 200418%0%
Aug 1496°F74°F103°F 201258°F 200418%0%
Aug 1596°F74°F104°F 201164°F 200418%0%
Aug 1696°F73°F104°F 201162°F 200419%0%
Aug 1796°F73°F106°F 202361°F 201319%0%
Aug 1896°F73°F108°F 202362°F 201319%0%
Aug 1995°F73°F107°F 201163°F 202019%0%
Aug 2095°F73°F108°F 201163°F 202019%0%
Aug 2195°F73°F104°F 202364°F 202019%0%
Aug 2295°F73°F105°F 201061°F 201220%0%
Aug 2395°F72°F107°F 201065°F 201220%0%
Aug 2494°F72°F107°F 202668°F 202020%0%
Aug 2594°F72°F107°F 202366°F 199920%0%
Aug 2694°F72°F107°F 199967°F 201020%0%
Aug 2794°F71°F107°F 201164°F 201021%0%
Aug 2894°F71°F106°F 201161°F 201021%0%
Aug 2993°F71°F105°F 202062°F 200921%0%
Aug 3093°F71°F104°F 200060°F 200421%0%
Aug 3193°F70°F107°F 200060°F 200421%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at McKinney, 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).

August 1
sunrise 6:40 AM, sunset 8:26 PM
August 31
sunrise 7:00 AM, sunset 7:53 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00053914 (Mckinney Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00053914, 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.