Norcross climate

Norcross Weather in September

NOAA 1991-2020 normals for Atlanta Peachtree AP, 11 km from Norcross

Average highs run from 86°F on September 1 to 79°F on September 30, and lows from 67°F to 58°F. Normal precipitation for the month is 4.12 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 Norcross, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
83°F
Average low
63°F
Precipitation
4.12 in
Record high
100°FSep 5, 2026
Record low
42°FSep 28, 2022
Chance of a freeze
0%
Days of 90°F or more
6.3
Daylight
12 h 51 min to 11 h 51 min
Cloud cover
51%
Humidity
72%
Dew point
61°F
Wind
4.3 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 186°F67°F96°F 202662°F 199932%0%
Sep 286°F67°F98°F 202659°F 201732%0%
Sep 386°F66°F97°F 202658°F 201731%0%
Sep 486°F66°F97°F 202657°F 201731%0%
Sep 586°F66°F100°F 202654°F 201030%0%
Sep 685°F66°F97°F 202657°F 201030%0%
Sep 785°F66°F95°F 199950°F 201730%0%
Sep 885°F65°F95°F 199951°F 201729%0%
Sep 985°F65°F98°F 201954°F 199829%0%
Sep 1084°F65°F96°F 200254°F 201129%0%
Sep 1184°F64°F96°F 201056°F 199929%0%
Sep 1284°F64°F96°F 201958°F 201728%0%
Sep 1384°F64°F96°F 201952°F 201528%0%
Sep 1484°F64°F95°F 201848°F 201528%0%
Sep 1583°F63°F94°F 200553°F 201528%0%
Sep 1683°F63°F94°F 201952°F 200128%0%
Sep 1783°F63°F96°F 201951°F 200128%0%
Sep 1883°F62°F92°F 201054°F 200328%0%
Sep 1982°F62°F94°F 201851°F 200428%0%
Sep 2082°F62°F95°F 201054°F 200428%0%
Sep 2182°F61°F95°F 201051°F 200628%0%
Sep 2281°F61°F94°F 202450°F 202028%0%
Sep 2381°F61°F94°F 202446°F 199928%0%
Sep 2481°F60°F97°F 199844°F 201228%0%
Sep 2580°F60°F93°F 201050°F 200128%0%
Sep 2680°F59°F93°F 201944°F 200129%0%
Sep 2780°F59°F94°F 201943°F 200129%0%
Sep 2879°F59°F91°F 201742°F 202229%0%
Sep 2979°F58°F92°F 201944°F 200329%0%
Sep 3079°F58°F94°F 201944°F 200329%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Norcross, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 7:11 AM, sunset 8:02 PM
September 30
sunrise 7:31 AM, sunset 7:22 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00053863 (Atlanta Peachtree AP), public domain. Records: NOAA GHCN-Daily, station USW00053863, 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.