Lyons climate

Lyons Weather in September

NOAA 1991-2020 normals for Silver Creek Falls, 11.2 km from Lyons

Average highs run from 74°F on September 1 to 65°F on September 30, and lows from 48°F to 44°F. Normal precipitation for the month is 2.27 in.

September day by day

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

Normal daily high and low temperature at Lyons, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
70°F
Average low
46°F
Precipitation
2.27 in
Record high
104°FSep 2, 1988
Record low
26°FSep 25, 1934
Chance of a freeze
6%
Daylight
13 h 14 min to 11 h 45 min
Cloud cover
49%
Humidity
67%
Dew point
46°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 174°F48°F102°F 198837°F 19730%
Sep 274°F48°F104°F 198837°F 19560%
Sep 373°F48°F98°F 201736°F 19320%
Sep 473°F48°F100°F 195540°F 18980%
Sep 573°F47°F103°F 194437°F 19690%
Sep 673°F47°F99°F 195840°F 19610%
Sep 773°F47°F99°F 195838°F 19600%
Sep 872°F47°F98°F 194438°F 19310%
Sep 972°F47°F98°F 194835°F 19280%
Sep 1072°F47°F99°F 194436°F 19280%
Sep 1172°F47°F96°F 192236°F 19360%
Sep 1272°F46°F96°F 192432°F 19210%
Sep 1371°F46°F96°F 195128°F 19700%
Sep 1471°F46°F98°F 193735°F 19700%
Sep 1571°F46°F98°F 196734°F 19210%
Sep 1670°F46°F93°F 192933°F 19650%
Sep 1770°F46°F95°F 196228°F 19650%
Sep 1870°F46°F93°F 199132°F 19650%
Sep 1969°F45°F96°F 197434°F 19280%
Sep 2069°F45°F98°F 197436°F 19280%
Sep 2169°F45°F97°F 197433°F 19320%
Sep 2268°F45°F95°F 198932°F 19020%
Sep 2368°F45°F97°F 194332°F 20000%
Sep 2468°F45°F98°F 197434°F 19080%
Sep 2567°F44°F94°F 199126°F 19340%
Sep 2667°F44°F96°F 196729°F 19340%
Sep 2766°F44°F98°F 200326°F 19720%
Sep 2866°F44°F90°F 191832°F 19720%
Sep 2966°F44°F91°F 193533°F 19830%
Sep 3065°F44°F90°F 197533°F 19830%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lyons, 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 6:33 AM, sunset 7:47 PM
September 30
sunrise 7:07 AM, sunset 6:52 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00357809 (Silver Creek Falls), public domain. Records: NOAA GHCN-Daily, station USW00024232, 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.