Rio Rico climate

Rio Rico Weather in September

NOAA 1991-2020 normals for Nogales 6 N, 2 km from Rio Rico

Average highs run from 93°F on September 1 to 88°F on September 30, and lows from 62°F to 52°F. Normal precipitation for the month is 2.23 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 Rio Rico, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
91°F
Average low
58°F
Precipitation
2.23 in
Record high
106°FSep 10, 2023
Record low
43°FSep 22, 2004
Chance of a freeze
0%
Days of 90°F or more
19.5
Daylight
12 h 47 min to 11 h 53 min
Cloud cover
35%
Humidity
48%
Dew point
52°F
Wind
7.2 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 193°F62°F101°F 201156°F 200036%0%
Sep 292°F62°F97°F 201056°F 200035%0%
Sep 392°F62°F98°F 201154°F 200034%0%
Sep 492°F61°F104°F 202057°F 201634%0%
Sep 592°F61°F102°F 202458°F 199933%0%
Sep 692°F61°F102°F 202058°F 200832%0%
Sep 792°F61°F98°F 200058°F 199931%0%
Sep 892°F60°F103°F 202353°F 200130%0%
Sep 992°F60°F105°F 202355°F 200130%0%
Sep 1092°F60°F106°F 202356°F 201029%0%
Sep 1192°F60°F100°F 202454°F 201028%0%
Sep 1291°F59°F99°F 201755°F 200327%0%
Sep 1391°F59°F99°F 200049°F 200526%0%
Sep 1491°F59°F101°F 201849°F 200526%0%
Sep 1591°F58°F98°F 201847°F 200525%0%
Sep 1691°F58°F98°F 201050°F 201624%0%
Sep 1791°F57°F98°F 201051°F 200623%0%
Sep 1890°F57°F99°F 201051°F 200623%0%
Sep 1990°F57°F97°F 200352°F 200622%0%
Sep 2090°F56°F97°F 200555°F 200621%0%
Sep 2190°F56°F97°F 200350°F 200421%0%
Sep 2290°F55°F96°F 200143°F 200420%0%
Sep 2389°F55°F96°F 200146°F 200419%0%
Sep 2489°F54°F98°F 202047°F 201719%0%
Sep 2589°F54°F101°F 202444°F 201718%0%
Sep 2689°F54°F102°F 202446°F 201718%0%
Sep 2788°F53°F104°F 202448°F 201717%0%
Sep 2888°F53°F102°F 202448°F 201317%0%
Sep 2988°F52°F99°F 202451°F 201316%0%
Sep 3088°F52°F99°F 202449°F 200416%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Rio Rico, 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 (MST).

September 1
sunrise 6:00 AM, sunset 6:47 PM
September 30
sunrise 6:17 AM, sunset 6:10 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00025924 (Nogales 6 N), public domain. Records: NOAA GHCN-Daily, station USW00003196, 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.