Lyons climate

Lyons Weather in September

NOAA 1991-2020 normals for W Pt, 22.2 km from Lyons

Average highs run from 80°F on September 1 to 71°F on September 30, and lows from 58°F to 46°F. Normal precipitation for the month is 3.02 in over about 8 wet days.

September day by day

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

Normal daily high and low temperature at Lyons, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
76°F
Average low
52°F
Precipitation
3.02 in
Record high
106°FSep 2, 2000
Record low
28°FSep 30, 2003
Chance of a freeze
17%
Days of 90°F or more
2.0
Daylight
13 h 07 min to 11 h 47 min
Cloud cover
47%
Humidity
65%
Dew point
52°F
Wind
10.7 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
Sep 180°F58°F94°F 201244°F 200928%0%
Sep 280°F58°F106°F 200045°F 202428%0%
Sep 380°F57°F99°F 200042°F 200628%0%
Sep 480°F57°F99°F 201242°F 201028%0%
Sep 579°F56°F95°F 202045°F 201128%0%
Sep 679°F56°F98°F 202042°F 202528%0%
Sep 779°F56°F93°F 200241°F 200828%0%
Sep 879°F55°F94°F 202241°F 201228%0%
Sep 979°F55°F96°F 200039°F 200828%0%
Sep 1078°F55°F97°F 200039°F 199928%0%
Sep 1178°F54°F99°F 201243°F 202228%0%
Sep 1278°F54°F93°F 199840°F 201428%0%
Sep 1378°F53°F97°F 202536°F 201428%0%
Sep 1477°F53°F93°F 201835°F 200728%0%
Sep 1577°F52°F92°F 201833°F 200728%0%
Sep 1677°F52°F92°F 202140°F 199928%0%
Sep 1776°F52°F95°F 200043°F 199928%0%
Sep 1876°F51°F95°F 200034°F 201228%0%
Sep 1976°F51°F95°F 199837°F 200328%0%
Sep 2075°F50°F102°F 202233°F 200628%0%
Sep 2175°F50°F99°F 200531°F 199928%0%
Sep 2275°F49°F95°F 201732°F 201228%0%
Sep 2374°F49°F91°F 201731°F 201228%0%
Sep 2474°F48°F90°F 201731°F 200228%0%
Sep 2574°F48°F94°F 199832°F 200328%0%
Sep 2673°F47°F95°F 199833°F 200128%0%
Sep 2773°F47°F94°F 202134°F 201227%0%
Sep 2872°F47°F94°F 202132°F 200327%0%
Sep 2972°F46°F98°F 202329°F 200327%0%
Sep 3071°F46°F98°F 202328°F 200327%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lyons, 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).

September 1
sunrise 6:52 AM, sunset 7:59 PM
September 30
sunrise 7:22 AM, sunset 7:09 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00259200 (W Pt), public domain. Records: NOAA GHCN-Daily, station USW00094978, 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.