Byron climate

Byron Weather in October

NOAA 1991-2020 normals for Rockford Gtr Rockford AP, 15.3 km from Byron

Average highs run from 69°F on October 1 to 55°F on October 31, and lows from 47°F to 37°F. Normal precipitation for the month is 2.63 in over about 10 wet days.

October day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Byron, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
62°F
Average low
42°F
Precipitation
2.63 in
Snowfall
0.2 in
Record high
90°FOct 1, 1971
Record low
15°FOct 29, 1952
Chance of a freeze
92%
Daylight
11 h 44 min to 10 h 23 min
Cloud cover
61%
Humidity
76%
Dew point
42°F
Wind
10.5 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
Oct 169°F47°F90°F 197128°F 200330%0%
Oct 269°F47°F88°F 197123°F 200330%0%
Oct 368°F46°F90°F 199728°F 195230%0%
Oct 468°F46°F88°F 200524°F 198930%0%
Oct 568°F46°F89°F 199727°F 198030%0%
Oct 667°F45°F90°F 196323°F 195230%0%
Oct 767°F45°F88°F 200726°F 200130%0%
Oct 866°F45°F86°F 200724°F 198730%0%
Oct 966°F44°F90°F 201026°F 200030%0%
Oct 1065°F44°F85°F 196224°F 196430%0%
Oct 1165°F44°F86°F 201025°F 200930%0%
Oct 1264°F43°F85°F 200824°F 198730%0%
Oct 1364°F43°F87°F 197522°F 198830%1%
Oct 1463°F42°F84°F 197528°F 197930%1%
Oct 1563°F42°F86°F 196326°F 200630%1%
Oct 1662°F42°F82°F 195627°F 199130%1%
Oct 1762°F41°F84°F 195624°F 195230%1%
Oct 1861°F41°F86°F 195319°F 195230%1%
Oct 1961°F41°F84°F 195318°F 199230%1%
Oct 2061°F40°F86°F 195324°F 195230%1%
Oct 2160°F40°F84°F 195322°F 195230%1%
Oct 2260°F40°F83°F 195322°F 197630%1%
Oct 2359°F39°F83°F 196320°F 198130%1%
Oct 2459°F39°F81°F 202318°F 198130%2%
Oct 2558°F39°F78°F 198923°F 198730%2%
Oct 2658°F38°F81°F 196318°F 196230%2%
Oct 2757°F38°F78°F 201419°F 197630%2%
Oct 2857°F38°F74°F 199917°F 197630%2%
Oct 2956°F37°F81°F 202415°F 195230%2%
Oct 3056°F37°F79°F 197121°F 198830%2%
Oct 3155°F37°F75°F 196820°F 201930%3%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Byron, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

October 1
sunrise 6:54 AM, sunset 6:38 PM
October 31
sunrise 7:29 AM, sunset 5:52 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094822 (Rockford Gtr Rockford AP), public domain. Records: NOAA GHCN-Daily, station USW00094822, 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.