Summerset climate

Summerset Weather in August

NOAA 1991-2020 normals for Rapid City 4NW, 9.1 km from Summerset

Average highs run from 85°F on August 1 to 80°F on August 31, and lows from 59°F to 52°F. Normal precipitation for the month is 1.97 in over about 6 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 Summerset, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
83°F
Average low
56°F
Precipitation
1.97 in
Record high
107°FAug 13, 2007
Record low
37°FAug 31, 2020
Chance of a freeze
0%
Days of 90°F or more
7.1
Daylight
14 h 37 min to 13 h 16 min
Cloud cover
45%
Humidity
54%
Dew point
47°F
Wind
5.8 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
Aug 185°F59°F102°F 195542°F 200924%0%
Aug 285°F59°F104°F 202647°F 197124%0%
Aug 385°F59°F103°F 202442°F 197824%0%
Aug 485°F59°F103°F 200143°F 202623%0%
Aug 585°F59°F103°F 202245°F 198023%0%
Aug 684°F59°F104°F 196150°F 198923%0%
Aug 784°F59°F105°F 197545°F 198922%0%
Aug 884°F58°F103°F 199248°F 202322%0%
Aug 984°F58°F102°F 195847°F 196722%0%
Aug 1084°F58°F103°F 200743°F 200422%0%
Aug 1184°F58°F103°F 200640°F 200421%0%
Aug 1284°F58°F105°F 196545°F 196421%0%
Aug 1383°F57°F107°F 200743°F 200421%0%
Aug 1483°F57°F100°F 200347°F 199520%0%
Aug 1583°F57°F106°F 198847°F 202320%0%
Aug 1683°F57°F101°F 197345°F 196820%0%
Aug 1783°F56°F105°F 202139°F 200219%0%
Aug 1883°F56°F104°F 195943°F 200219%0%
Aug 1982°F56°F104°F 198641°F 197819%0%
Aug 2082°F56°F104°F 197342°F 196418%0%
Aug 2182°F55°F99°F 196243°F 202118%0%
Aug 2282°F55°F104°F 194938°F 196618%0%
Aug 2382°F55°F104°F 194938°F 201518%0%
Aug 2481°F54°F102°F 202441°F 201518%0%
Aug 2581°F54°F103°F 199142°F 196417%0%
Aug 2681°F54°F103°F 199143°F 196717%0%
Aug 2781°F53°F103°F 199142°F 199217%0%
Aug 2880°F53°F100°F 201241°F 200417%0%
Aug 2980°F53°F107°F 201241°F 198817%0%
Aug 3080°F52°F102°F 194838°F 199217%0%
Aug 3180°F52°F103°F 195437°F 202017%0%

Chance of rain

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

August 1
sunrise 5:41 AM, sunset 8:18 PM
August 31
sunrise 6:15 AM, sunset 7:31 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00396947 (Rapid City 4NW), public domain. Records: NOAA GHCN-Daily, station USW00024090, 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.