Lyndon climate

Lyndon Weather in September

NOAA 1991-2020 normals for Osage City, 10.7 km from Lyndon

Average highs run from 84°F on September 1 to 75°F on September 30, and lows from 61°F to 51°F. Normal precipitation for the month is 3.46 in over about 6 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 Lyndon, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
80°F
Average low
56°F
Precipitation
3.46 in
Record high
109°FSep 3, 2000
Record low
29°FSep 29, 1984
Chance of a freeze
4%
Days of 90°F or more
5.2
Daylight
13 h 01 min to 11 h 49 min
Cloud cover
45%
Humidity
69%
Dew point
57°F
Wind
9.6 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 184°F61°F105°F 201148°F 196720%0%
Sep 284°F60°F107°F 200049°F 196720%0%
Sep 383°F60°F109°F 200044°F 197420%0%
Sep 483°F60°F104°F 201243°F 197420%0%
Sep 583°F60°F100°F 201242°F 196820%0%
Sep 683°F59°F98°F 197845°F 201120%0%
Sep 782°F59°F99°F 197849°F 198620%0%
Sep 882°F59°F100°F 198049°F 198620%0%
Sep 982°F58°F100°F 202650°F 201220%0%
Sep 1081°F58°F97°F 197139°F 197620%0%
Sep 1181°F58°F99°F 198443°F 197620%0%
Sep 1281°F57°F97°F 198445°F 197520%0%
Sep 1381°F57°F97°F 198441°F 197421%0%
Sep 1480°F57°F100°F 198440°F 197921%0%
Sep 1580°F57°F94°F 196238°F 196121%0%
Sep 1680°F56°F94°F 202639°F 198121%0%
Sep 1779°F56°F96°F 200638°F 198121%0%
Sep 1879°F55°F98°F 202239°F 197321%0%
Sep 1979°F55°F99°F 202240°F 197321%0%
Sep 2079°F55°F99°F 202239°F 197121%0%
Sep 2178°F54°F98°F 202235°F 198321%0%
Sep 2278°F54°F95°F 198030°F 199521%0%
Sep 2378°F54°F93°F 200034°F 198321%0%
Sep 2477°F53°F91°F 198435°F 198921%0%
Sep 2577°F53°F93°F 198435°F 197521%0%
Sep 2677°F53°F91°F 202336°F 197521%0%
Sep 2776°F52°F91°F 199036°F 198421%0%
Sep 2876°F52°F95°F 202333°F 196721%0%
Sep 2976°F51°F95°F 202329°F 198420%0%
Sep 3075°F51°F92°F 197933°F 198420%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lyndon, 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 (CDT).

September 1
sunrise 6:52 AM, sunset 7:53 PM
September 30
sunrise 7:18 AM, sunset 7:07 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00146076 (Osage City), public domain. Records: NOAA GHCN-Daily, station USC00144104, 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.