Sylvan climate

Sylvan Weather in August

NOAA 1991-2020 normals for Gays Mills, 21.5 km from Sylvan

Average highs run from 83°F on August 1 to 79°F on August 31, and lows from 61°F to 56°F. Normal precipitation for the month is 4.43 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 Sylvan, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
82°F
Average low
59°F
Precipitation
4.43 in
Record high
103°FAug 17, 1937
Record low
32°FAug 28, 1986
Chance of a freeze
0%
Days of 90°F or more
2.3
Daylight
14 h 33 min to 13 h 14 min
Cloud cover
53%
Humidity
74%
Dew point
60°F
Wind
8.3 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 183°F61°F98°F 198845°F 196827%0%
Aug 283°F61°F98°F 198843°F 196527%0%
Aug 383°F61°F99°F 193040°F 189426%0%
Aug 483°F61°F97°F 189640°F 197126%0%
Aug 583°F60°F99°F 194745°F 195726%0%
Aug 683°F60°F98°F 193142°F 199026%0%
Aug 783°F60°F98°F 193743°F 197626%0%
Aug 883°F60°F100°F 189437°F 190426%0%
Aug 982°F60°F98°F 193441°F 197226%0%
Aug 1082°F60°F93°F 189940°F 198226%0%
Aug 1182°F60°F97°F 195840°F 198226%0%
Aug 1282°F60°F95°F 194141°F 191626%0%
Aug 1382°F60°F95°F 189541°F 196426%0%
Aug 1482°F60°F94°F 189534°F 196426%0%
Aug 1582°F59°F97°F 193639°F 197926%0%
Aug 1682°F59°F98°F 198839°F 197626%0%
Aug 1782°F59°F103°F 193738°F 196226%0%
Aug 1882°F59°F97°F 194738°F 197726%0%
Aug 1981°F59°F98°F 194738°F 200426%0%
Aug 2081°F59°F96°F 191641°F 195026%0%
Aug 2181°F58°F95°F 195534°F 200426%0%
Aug 2281°F58°F99°F 194736°F 192326%0%
Aug 2381°F58°F97°F 194741°F 198726%0%
Aug 2481°F58°F100°F 194838°F 193426%0%
Aug 2580°F58°F100°F 194841°F 191726%0%
Aug 2680°F57°F97°F 194839°F 196426%0%
Aug 2780°F57°F96°F 194840°F 191526%0%
Aug 2880°F57°F98°F 193732°F 198626%0%
Aug 2980°F57°F96°F 195538°F 189326%0%
Aug 3079°F56°F95°F 193735°F 191526%0%
Aug 3179°F56°F97°F 193736°F 196726%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sylvan, 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 5:52 AM, sunset 8:25 PM
August 31
sunrise 6:25 AM, sunset 7:39 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00473022 (Gays Mills), public domain. Records: NOAA GHCN-Daily, station USC00478827, 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.