Lamar climate

Lamar Weather in September

NOAA 1991-2020 normals for Lamar, 1.1 km from Lamar

Average highs run from 88°F on September 1 to 78°F on September 30, and lows from 58°F to 44°F. Normal precipitation for the month is 1.19 in over about 5 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 Lamar, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
84°F
Average low
52°F
Precipitation
1.19 in
Record high
107°FSep 6, 2020
Record low
27°FSep 29, 1999
Chance of a freeze
9%
Days of 90°F or more
9.9
Daylight
13 h 00 min to 11 h 50 min
Cloud cover
40%
Humidity
49%
Dew point
46°F
Wind
10.7 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 188°F58°F105°F 202347°F 202418%0%
Sep 288°F57°F105°F 201946°F 201018%0%
Sep 388°F57°F104°F 201443°F 200818%0%
Sep 487°F57°F103°F 201342°F 200817%0%
Sep 587°F56°F104°F 201945°F 201117%0%
Sep 687°F56°F107°F 202044°F 201417%0%
Sep 787°F56°F102°F 201344°F 200117%0%
Sep 886°F55°F101°F 202238°F 200117%0%
Sep 986°F55°F100°F 201334°F 200116%0%
Sep 1086°F54°F103°F 202140°F 200116%0%
Sep 1185°F54°F104°F 202141°F 200716%0%
Sep 1285°F53°F100°F 200439°F 201416%0%
Sep 1385°F53°F101°F 201841°F 201416%0%
Sep 1485°F53°F100°F 201538°F 200316%0%
Sep 1584°F52°F101°F 202436°F 201216%0%
Sep 1684°F52°F100°F 200735°F 201215%0%
Sep 1783°F51°F100°F 200037°F 200615%0%
Sep 1883°F51°F100°F 201836°F 200615%0%
Sep 1983°F50°F102°F 201834°F 200315%0%
Sep 2082°F50°F98°F 201639°F 200615%0%
Sep 2182°F49°F97°F 200539°F 199915%0%
Sep 2281°F49°F97°F 201635°F 202115%0%
Sep 2381°F48°F95°F 200336°F 202115%0%
Sep 2480°F48°F99°F 200530°F 200015%0%
Sep 2580°F47°F100°F 199836°F 200614%0%
Sep 2680°F47°F99°F 202032°F 200014%0%
Sep 2779°F46°F96°F 200531°F 201814%0%
Sep 2879°F45°F97°F 202330°F 199914%0%
Sep 2978°F45°F97°F 201027°F 199914%0%
Sep 3078°F44°F98°F 201933°F 199914%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lamar, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

September 1
sunrise 6:20 AM, sunset 7:20 PM
September 30
sunrise 6:45 AM, sunset 6:35 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00054770 (Lamar), public domain. Records: NOAA GHCN-Daily, station USW00003013, 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.