Southglenn climate

Southglenn Weather in August

NOAA 1991-2020 normals for Marston Fltr Plt, 10.4 km from Southglenn

Average highs run from 87°F on August 1 to 83°F on August 31, and lows from 60°F to 54°F. Normal precipitation for the month is 1.85 in over about 9 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 Southglenn, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
85°F
Average low
58°F
Precipitation
1.85 in
Record high
100°FAug 1, 2008
Record low
38°FAug 26, 2014
Chance of a freeze
0%
Days of 90°F or more
8.9
Daylight
14 h 13 min to 13 h 05 min
Cloud cover
50%
Humidity
47%
Dew point
44°F
Wind
7.4 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 187°F60°F100°F 200849°F 200929%0%
Aug 286°F60°F100°F 202650°F 199829%0%
Aug 386°F60°F98°F 202653°F 201729%0%
Aug 486°F60°F97°F 202453°F 200930%0%
Aug 586°F60°F97°F 202251°F 202630%0%
Aug 686°F59°F96°F 202650°F 200030%0%
Aug 786°F59°F96°F 200350°F 199829%0%
Aug 886°F59°F99°F 202654°F 200529%0%
Aug 986°F59°F96°F 200052°F 201329%0%
Aug 1086°F59°F93°F 201652°F 201329%0%
Aug 1186°F59°F95°F 200051°F 202529%0%
Aug 1286°F58°F92°F 200750°F 200429%0%
Aug 1386°F58°F95°F 202046°F 200229%0%
Aug 1485°F58°F95°F 202550°F 200429%0%
Aug 1585°F58°F95°F 201548°F 200829%0%
Aug 1685°F58°F98°F 200249°F 200829%0%
Aug 1785°F58°F95°F 202046°F 200928%0%
Aug 1885°F57°F97°F 202049°F 200828%0%
Aug 1985°F57°F96°F 201948°F 201628%0%
Aug 2085°F57°F97°F 201945°F 201828%0%
Aug 2185°F57°F96°F 202650°F 200928%0%
Aug 2284°F57°F95°F 200950°F 200527%0%
Aug 2384°F56°F97°F 202047°F 201527%0%
Aug 2484°F56°F97°F 201150°F 201627%0%
Aug 2584°F56°F95°F 201945°F 201626%0%
Aug 2684°F56°F93°F 201538°F 201426%0%
Aug 2784°F55°F94°F 201145°F 200426%0%
Aug 2883°F55°F94°F 201242°F 200426%0%
Aug 2983°F55°F93°F 201346°F 200625%0%
Aug 3083°F55°F93°F 201250°F 200225%0%
Aug 3183°F54°F95°F 201145°F 202025%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Southglenn, 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 (MDT).

August 1
sunrise 5:59 AM, sunset 8:12 PM
August 31
sunrise 6:27 AM, sunset 7:32 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00055402 (Marston Fltr Plt), public domain. Records: NOAA GHCN-Daily, station USW00093067, 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.