Roby climate

Roby Weather in September

NOAA 1991-2020 normals for Rotan, 14.5 km from Roby

Average highs run from 91°F on September 1 to 83°F on September 30, and lows from 71°F to 61°F. Normal precipitation for the month is 2.72 in over about 4 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 Roby, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
87°F
Average low
66°F
Precipitation
2.72 in
Record high
107°FSep 27, 1953
Record low
35°FSep 24, 1989
Chance of a freeze
0%
Days of 90°F or more
13.5
Daylight
12 h 50 min to 11 h 52 min
Cloud cover
42%
Humidity
57%
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 191°F71°F106°F 195149°F 195513%0%
Sep 291°F70°F105°F 194751°F 195513%0%
Sep 391°F70°F105°F 194750°F 197413%0%
Sep 491°F70°F104°F 202650°F 196113%0%
Sep 590°F69°F104°F 200048°F 200913%0%
Sep 690°F69°F106°F 202348°F 201113%0%
Sep 790°F69°F101°F 201246°F 194313%0%
Sep 889°F69°F103°F 201248°F 200413%0%
Sep 989°F68°F106°F 202346°F 202013%0%
Sep 1089°F68°F100°F 202346°F 202013%0%
Sep 1188°F68°F100°F 200044°F 195913%0%
Sep 1288°F67°F103°F 200045°F 195913%0%
Sep 1388°F67°F104°F 202648°F 194513%0%
Sep 1488°F67°F101°F 201144°F 194513%0%
Sep 1587°F66°F101°F 196546°F 194513%0%
Sep 1687°F66°F101°F 196548°F 200813%0%
Sep 1787°F66°F100°F 199745°F 195114%0%
Sep 1886°F65°F96°F 194546°F 197114%0%
Sep 1986°F65°F103°F 195643°F 199114%0%
Sep 2086°F65°F105°F 195340°F 197114%0%
Sep 2186°F64°F102°F 202139°F 198314%0%
Sep 2285°F64°F100°F 199844°F 193914%0%
Sep 2385°F64°F101°F 202545°F 199414%0%
Sep 2485°F63°F100°F 195335°F 198914%0%
Sep 2584°F63°F100°F 197738°F 200014%0%
Sep 2684°F63°F106°F 195338°F 200014%0%
Sep 2784°F62°F107°F 195337°F 194214%0%
Sep 2884°F62°F100°F 195339°F 196714%0%
Sep 2983°F61°F101°F 197738°F 194514%0%
Sep 3083°F61°F103°F 197738°F 194514%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Roby, in percent, and of at least 0.1 inch of snowfall.0510151102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 7:16 AM, sunset 8:06 PM
September 30
sunrise 7:35 AM, sunset 7:27 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00417782 (Rotan), public domain. Records: NOAA GHCN-Daily, station USC00417743, 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.