Lake County climate

Lake County Weather in September

NOAA 1991-2020 normals for Paisley, 16.8 km from Lake County

Average highs run from 81°F on September 1 to 72°F on September 30, and lows from 44°F to 37°F.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Lake County, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
77°F
Average low
40°F
Record high
99°FSep 2, 1950
Record low
12°FSep 25, 1934
Chance of a freeze
92%
Days of 90°F or more
1.6
Daylight
13 h 10 min to 11 h 46 min
Cloud cover
37%
Humidity
49%
Dew point
35°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 181°F44°F96°F 195033°F 19320%
Sep 281°F43°F99°F 195026°F 19070%
Sep 381°F43°F99°F 195528°F 19990%
Sep 481°F43°F99°F 195524°F 19960%
Sep 580°F43°F99°F 195529°F 19960%
Sep 680°F43°F93°F 195529°F 19960%
Sep 780°F42°F93°F 190227°F 20020%
Sep 880°F42°F93°F 188826°F 19140%
Sep 979°F42°F94°F 194329°F 19160%
Sep 1079°F42°F93°F 199026°F 19310%
Sep 1179°F42°F93°F 188826°F 19310%
Sep 1279°F41°F92°F 194520°F 19140%
Sep 1378°F41°F91°F 193725°F 19030%
Sep 1478°F41°F94°F 193720°F 19700%
Sep 1578°F41°F94°F 188825°F 19440%
Sep 1677°F40°F92°F 198126°F 20040%
Sep 1777°F40°F91°F 192919°F 19070%
Sep 1877°F40°F91°F 190127°F 19540%
Sep 1976°F40°F90°F 190121°F 19330%
Sep 2076°F40°F89°F 193623°F 18950%
Sep 2176°F39°F89°F 198720°F 19020%
Sep 2275°F39°F93°F 198725°F 19130%
Sep 2375°F39°F91°F 194921°F 19840%
Sep 2474°F39°F90°F 194319°F 19020%
Sep 2574°F38°F89°F 188812°F 19340%
Sep 2674°F38°F91°F 188814°F 19020%
Sep 2773°F38°F92°F 199415°F 19020%
Sep 2873°F37°F89°F 200316°F 19020%
Sep 2972°F37°F87°F 199215°F 19020%
Sep 3072°F37°F86°F 194317°F 19020%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lake County, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

September 1
sunrise 6:26 AM, sunset 7:36 PM
September 30
sunrise 6:58 AM, sunset 6:44 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356426 (Paisley), public domain. Records: NOAA GHCN-Daily, station USC00354670, 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.