Rock Port climate

Rock Port Weather in September

NOAA 1991-2020 normals for Auburn 5 Ese, 20 km from Rock Port

Average highs run from 84°F on September 1 to 75°F on September 30, and lows from 60°F to 49°F. Normal precipitation for the month is 3.07 in over about 7 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 Rock Port, 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
55°F
Precipitation
3.07 in
Record high
102°FSep 2, 1975
Record low
28°FSep 29, 1984
Chance of a freeze
22%
Days of 90°F or more
5.4
Daylight
13 h 04 min to 11 h 48 min
Cloud cover
46%
Humidity
67%
Dew point
54°F
Wind
10.1 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°F60°F99°F 200043°F 196723%0%
Sep 284°F60°F102°F 197543°F 196723%0%
Sep 383°F59°F102°F 200038°F 197423%0%
Sep 483°F59°F101°F 201233°F 197423%0%
Sep 583°F59°F96°F 202640°F 197423%0%
Sep 683°F58°F97°F 202644°F 196223%0%
Sep 783°F58°F99°F 198045°F 201723%0%
Sep 882°F58°F99°F 197143°F 198623%0%
Sep 982°F57°F99°F 202640°F 200823%0%
Sep 1082°F57°F97°F 198340°F 197623%0%
Sep 1182°F57°F99°F 201238°F 197623%0%
Sep 1281°F56°F95°F 200040°F 197523%0%
Sep 1381°F56°F95°F 198036°F 201423%0%
Sep 1481°F56°F94°F 202537°F 201423%0%
Sep 1581°F55°F95°F 201736°F 199323%0%
Sep 1680°F55°F91°F 201735°F 198423%0%
Sep 1780°F54°F92°F 197238°F 198023%0%
Sep 1880°F54°F92°F 198336°F 197323%0%
Sep 1979°F54°F95°F 197232°F 199123%0%
Sep 2079°F53°F95°F 202233°F 199123%0%
Sep 2179°F53°F100°F 202236°F 197123%0%
Sep 2278°F52°F98°F 200531°F 199523%0%
Sep 2378°F52°F94°F 201731°F 199523%0%
Sep 2478°F52°F92°F 201732°F 196523%0%
Sep 2577°F51°F90°F 200533°F 196523%0%
Sep 2677°F51°F91°F 199833°F 198423%0%
Sep 2776°F50°F95°F 202033°F 198423%0%
Sep 2876°F50°F93°F 197133°F 196123%0%
Sep 2975°F50°F92°F 202128°F 198423%0%
Sep 3075°F49°F93°F 202328°F 198422%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Rock Port, 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 6:50 AM, sunset 7:54 PM
September 30
sunrise 7:18 AM, sunset 7:06 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00250435 (Auburn 5 Ese), public domain. Records: NOAA GHCN-Daily, station USC00255810, 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.