Atchison County climate

Atchison County Weather in September

NOAA 1991-2020 normals for Atchison, 18 km from Atchison County

Average highs run from 84°F on September 1 to 74°F on September 30, and lows from 63°F to 53°F. Normal precipitation for the month is 3.48 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 Atchison County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
79°F
Average low
58°F
Precipitation
3.48 in
Record high
103°FSep 28, 1953
Record low
30°FSep 28, 1967
Chance of a freeze
2%
Days of 90°F or more
3.1
Daylight
13 h 02 min to 11 h 48 min
Cloud cover
45%
Humidity
68%
Dew point
55°F
Wind
9.8 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
Sep 184°F63°F99°F 202641°F 196726%0%
Sep 283°F63°F99°F 200045°F 198126%0%
Sep 383°F62°F99°F 200038°F 197426%0%
Sep 483°F62°F97°F 202634°F 197426%0%
Sep 582°F62°F100°F 202635°F 197426%0%
Sep 682°F62°F99°F 202642°F 201726%0%
Sep 782°F61°F98°F 201343°F 201726%0%
Sep 882°F61°F100°F 202645°F 200826%0%
Sep 981°F61°F97°F 201342°F 200826%0%
Sep 1081°F60°F97°F 201335°F 197626%0%
Sep 1181°F60°F102°F 200041°F 196826%0%
Sep 1280°F60°F95°F 202538°F 201426%0%
Sep 1380°F59°F95°F 202537°F 201426%0%
Sep 1480°F59°F96°F 202635°F 197426%0%
Sep 1579°F58°F92°F 194837°F 200725%0%
Sep 1679°F58°F95°F 197838°F 199925%0%
Sep 1779°F58°F102°F 195338°F 198025%0%
Sep 1878°F57°F97°F 201836°F 198125%0%
Sep 1978°F57°F95°F 194837°F 197125%0%
Sep 2078°F57°F97°F 202233°F 197125%0%
Sep 2177°F56°F94°F 198031°F 199925%0%
Sep 2277°F56°F93°F 201731°F 197425%0%
Sep 2376°F55°F92°F 201731°F 201225%0%
Sep 2476°F55°F92°F 201732°F 197525%0%
Sep 2576°F55°F92°F 197234°F 197525%0%
Sep 2675°F54°F94°F 202134°F 197525%0%
Sep 2775°F54°F95°F 202135°F 197524%0%
Sep 2875°F54°F103°F 195330°F 196724%0%
Sep 2974°F53°F94°F 200231°F 196724%0%
Sep 3074°F53°F94°F 202332°F 197224%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Atchison County, 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 6:50 AM, sunset 7:52 PM
September 30
sunrise 7:17 AM, sunset 7:05 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00140405 (Atchison), public domain. Records: NOAA GHCN-Daily, station USW00013993, 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.