Summerlin South climate

Summerlin South Weather in August

NOAA 1991-2020 normals for Red Rock Canyon - Spg Mt Rch S, 12.9 km from Summerlin South

Average highs run from 96°F on August 1 to 92°F on August 31, and lows from 74°F to 68°F. Normal precipitation for the month is 0.44 in over about 2 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 Summerlin South, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
94°F
Average low
72°F
Precipitation
0.44 in
Record high
116°FAug 1, 1979
Record low
56°FAug 24, 1968
Chance of a freeze
0%
Days of 90°F or more
26.8
Daylight
13 h 57 min to 12 h 58 min
Cloud cover
33%
Humidity
26%
Dew point
39°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 196°F74°F116°F 197968°F 19758%0%
Aug 296°F74°F115°F 197768°F 19768%0%
Aug 396°F74°F116°F 197969°F 19508%0%
Aug 496°F74°F114°F 197960°F 19538%0%
Aug 596°F74°F113°F 196963°F 19538%0%
Aug 696°F74°F114°F 197864°F 19508%0%
Aug 795°F74°F111°F 196663°F 19507%0%
Aug 895°F73°F114°F 197864°F 19577%0%
Aug 995°F73°F112°F 198065°F 19517%0%
Aug 1095°F73°F112°F 200462°F 19497%0%
Aug 1195°F73°F113°F 198062°F 19497%0%
Aug 1295°F73°F112°F 198060°F 19497%0%
Aug 1395°F73°F112°F 196260°F 19497%0%
Aug 1495°F73°F111°F 196264°F 19497%0%
Aug 1595°F73°F113°F 202061°F 19497%0%
Aug 1695°F72°F113°F 202061°F 19497%0%
Aug 1794°F72°F112°F 202059°F 19497%0%
Aug 1894°F72°F114°F 202062°F 19497%0%
Aug 1994°F72°F113°F 202061°F 19767%0%
Aug 2094°F72°F112°F 202063°F 19497%0%
Aug 2194°F71°F111°F 202063°F 19577%0%
Aug 2294°F71°F109°F 196960°F 19687%0%
Aug 2394°F71°F110°F 201157°F 19687%0%
Aug 2493°F71°F112°F 201156°F 19687%0%
Aug 2593°F70°F111°F 201161°F 19787%0%
Aug 2693°F70°F110°F 202662°F 19787%0%
Aug 2793°F70°F111°F 202664°F 19547%0%
Aug 2893°F69°F110°F 201761°F 19737%0%
Aug 2992°F69°F110°F 201760°F 19737%0%
Aug 3092°F69°F111°F 195063°F 19537%0%
Aug 3192°F68°F111°F 195057°F 19577%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Summerlin South, in percent, and of at least 0.1 inch of snowfall.024681102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:49 AM, sunset 7:46 PM
August 31
sunrise 6:12 AM, sunset 7:10 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00266691 (Red Rock Canyon - Spg Mt Rch S), public domain. Records: NOAA GHCN-Daily, station USW00023169, 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.