Pleasanton climate

Pleasanton Weather in September

NOAA 1991-2020 normals for Pleasanton, 0.7 km from Pleasanton

Average highs run from 95°F on September 1 to 89°F on September 30, and lows from 73°F to 65°F. Normal precipitation for the month is 3.58 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 Pleasanton, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
92°F
Average low
69°F
Precipitation
3.58 in
Record high
113°FSep 5, 2000
Record low
46°FSep 30, 2020
Chance of a freeze
0%
Days of 90°F or more
23.5
Daylight
12 h 43 min to 11 h 54 min
Cloud cover
48%
Humidity
67%
Dew point
66°F
Wind
8.1 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 195°F73°F106°F 200063°F 199220%0%
Sep 295°F73°F106°F 200067°F 200921%0%
Sep 395°F72°F107°F 200067°F 201721%0%
Sep 495°F72°F110°F 200067°F 201121%0%
Sep 594°F72°F113°F 200069°F 199321%0%
Sep 694°F72°F104°F 200067°F 200822%0%
Sep 794°F72°F102°F 201254°F 201122%0%
Sep 894°F71°F103°F 202356°F 201722%0%
Sep 993°F71°F104°F 202357°F 201122%0%
Sep 1093°F71°F102°F 202357°F 201222%0%
Sep 1193°F71°F103°F 200059°F 201722%0%
Sep 1293°F70°F103°F 202657°F 201722%0%
Sep 1392°F70°F102°F 202658°F 201722%0%
Sep 1492°F70°F103°F 201160°F 201722%0%
Sep 1592°F70°F102°F 200860°F 199322%0%
Sep 1692°F69°F100°F 199556°F 199321%0%
Sep 1791°F69°F101°F 199555°F 199921%0%
Sep 1891°F69°F100°F 199554°F 200121%0%
Sep 1991°F68°F103°F 201959°F 200121%0%
Sep 2091°F68°F100°F 200056°F 199121%0%
Sep 2191°F68°F100°F 200058°F 199121%0%
Sep 2290°F68°F101°F 199252°F 199921%0%
Sep 2390°F67°F102°F 200050°F 202120%0%
Sep 2490°F67°F101°F 202350°F 202120%0%
Sep 2590°F67°F102°F 200550°F 202120%0%
Sep 2689°F66°F108°F 200550°F 200020%0%
Sep 2789°F66°F105°F 200550°F 200020%0%
Sep 2889°F66°F102°F 200549°F 199319%0%
Sep 2989°F65°F104°F 200549°F 199619%0%
Sep 3089°F65°F99°F 201946°F 202019%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Pleasanton, 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 7:12 AM, sunset 7:55 PM
September 30
sunrise 7:27 AM, sunset 7:21 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00417111 (Pleasanton), public domain. Records: NOAA GHCN-Daily, station USC00417111, 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.