Twentynine Palms climate

Twentynine Palms Weather in September

NOAA 1991-2020 normals for Twentynine Palms, 1.8 km from Twentynine Palms

Average highs run from 101°F on September 1 to 91°F on September 30, and lows from 74°F to 64°F. Normal precipitation for the month is 0.34 in over about 2 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 Twentynine Palms, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
97°F
Average low
69°F
Precipitation
0.34 in
Record high
113°FSep 7, 2020
Record low
41°FSep 22, 2017
Chance of a freeze
0%
Days of 90°F or more
26.8
Daylight
12 h 52 min to 11 h 52 min
Cloud cover
22%
Humidity
30%
Dew point
39°F
Wind
6.7 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 1101°F74°F107°F 202256°F 20107%0%
Sep 2100°F74°F107°F 201965°F 20127%0%
Sep 3100°F73°F105°F 202256°F 20267%0%
Sep 4100°F73°F106°F 202060°F 20267%0%
Sep 5100°F73°F109°F 202052°F 20167%0%
Sep 6100°F73°F111°F 202057°F 20237%0%
Sep 799°F72°F113°F 202059°F 20237%0%
Sep 899°F72°F108°F 202055°F 20197%0%
Sep 999°F72°F106°F 201847°F 20206%0%
Sep 1099°F71°F103°F 201849°F 20106%0%
Sep 1198°F71°F107°F 202650°F 20196%0%
Sep 1298°F71°F101°F 202457°F 20256%0%
Sep 1398°F70°F101°F 200958°F 20246%0%
Sep 1497°F70°F100°F 202151°F 20166%0%
Sep 1597°F70°F102°F 201953°F 20095%0%
Sep 1697°F69°F101°F 201350°F 20155%0%
Sep 1796°F69°F101°F 201345°F 20245%0%
Sep 1896°F69°F103°F 202054°F 20245%0%
Sep 1996°F68°F100°F 202051°F 20245%0%
Sep 2095°F68°F100°F 202052°F 20195%0%
Sep 2195°F68°F100°F 202048°F 20195%0%
Sep 2295°F67°F100°F 202041°F 20174%0%
Sep 2394°F67°F98°F 201145°F 20174%0%
Sep 2494°F66°F102°F 201148°F 20174%0%
Sep 2593°F66°F99°F 201545°F 20174%0%
Sep 2693°F66°F100°F 201545°F 20174%0%
Sep 2793°F65°F100°F 200946°F 20134%0%
Sep 2892°F65°F102°F 201050°F 20144%0%
Sep 2992°F64°F103°F 202448°F 20194%0%
Sep 3091°F64°F100°F 202442°F 20194%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Twentynine Palms, in percent, and of at least 0.1 inch of snowfall.024681102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

September 1
sunrise 6:18 AM, sunset 7:10 PM
September 30
sunrise 6:38 AM, sunset 6:30 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00049099 (Twentynine Palms), public domain. Records: NOAA GHCN-Daily, station USC00044405, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.