Summit climate

Summit Weather in August

NOAA 1991-2020 normals for Lead Hill, 27.4 km from Summit

Average highs run from 89°F on August 1 to 85°F on August 31, and lows from 67°F to 62°F. Normal precipitation for the month is 3.23 in over about 8 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 Summit, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
87°F
Average low
65°F
Precipitation
3.23 in
Record high
114°FAug 3, 2011
Record low
49°FAug 13, 2004
Chance of a freeze
0%
Days of 90°F or more
14.6
Daylight
13 h 58 min to 12 h 58 min
Cloud cover
49%
Humidity
67%
Dew point
65°F
Wind
3.4 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 189°F67°F105°F 201162°F 201428%0%
Aug 289°F67°F110°F 201161°F 202028%0%
Aug 389°F67°F114°F 201158°F 202528%0%
Aug 489°F67°F105°F 201260°F 202528%0%
Aug 588°F66°F98°F 201857°F 202028%0%
Aug 688°F66°F108°F 201156°F 200428%0%
Aug 788°F66°F103°F 201155°F 200428%0%
Aug 888°F66°F99°F 199955°F 200428%0%
Aug 988°F66°F101°F 200759°F 200228%0%
Aug 1088°F66°F102°F 200762°F 202428%0%
Aug 1188°F66°F102°F 200757°F 200428%0%
Aug 1288°F66°F104°F 200750°F 200428%0%
Aug 1388°F66°F104°F 200749°F 200428%0%
Aug 1488°F66°F103°F 200752°F 200428%0%
Aug 1588°F65°F105°F 200753°F 201327%0%
Aug 1688°F65°F103°F 200755°F 200427%0%
Aug 1788°F65°F103°F 202559°F 201327%0%
Aug 1888°F65°F103°F 202559°F 200827%0%
Aug 1987°F65°F104°F 199958°F 201227%0%
Aug 2087°F65°F98°F 202352°F 201527%0%
Aug 2187°F65°F100°F 201057°F 201227%0%
Aug 2287°F64°F100°F 200756°F 202426%0%
Aug 2387°F64°F101°F 201455°F 200926%0%
Aug 2487°F64°F100°F 200757°F 200926%0%
Aug 2586°F64°F99°F 201454°F 201526%0%
Aug 2686°F64°F100°F 200056°F 201026%0%
Aug 2786°F63°F102°F 200055°F 202526%0%
Aug 2886°F63°F103°F 200056°F 201026%0%
Aug 2986°F63°F103°F 200057°F 202526%0%
Aug 3085°F63°F105°F 200056°F 200426%0%
Aug 3185°F62°F104°F 200051°F 200925%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Summit, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:18 AM, sunset 8:16 PM
August 31
sunrise 6:42 AM, sunset 7:40 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00034106 (Lead Hill), public domain. Records: NOAA GHCN-Daily, station USW00053918, 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.