Nederland climate

Nederland Weather in September

NOAA 1991-2020 normals for Boulder 14 W, 8.6 km from Nederland

Average highs run from 63°F on September 1 to 53°F on September 30, and lows from 37°F to 30°F. Normal precipitation for the month is 2.01 in over about 9 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 Nederland, in °F, with the record for each date.020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
59°F
Average low
34°F
Precipitation
2.01 in
Snowfall
2.7 in
Record high
78°FSep 5, 2020
Record low
17°FSep 8, 2020
Chance of a freeze
100%
Daylight
13 h 03 min to 11 h 48 min
Cloud cover
54%
Humidity
51%
Dew point
31°F
Wind
5.8 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 163°F37°F75°F 201929°F 200538%1%
Sep 263°F37°F77°F 201928°F 200637%2%
Sep 363°F37°F74°F 201727°F 200637%2%
Sep 462°F37°F74°F 201926°F 200637%2%
Sep 562°F36°F78°F 202027°F 200636%2%
Sep 662°F36°F76°F 202227°F 201036%2%
Sep 762°F36°F74°F 202226°F 201036%3%
Sep 861°F36°F75°F 202217°F 202035%3%
Sep 961°F35°F74°F 202117°F 202035%3%
Sep 1061°F35°F75°F 202122°F 202034%3%
Sep 1160°F35°F72°F 202124°F 201434%4%
Sep 1260°F35°F72°F 201819°F 201434%4%
Sep 1360°F34°F73°F 201827°F 201933%4%
Sep 1459°F34°F71°F 201828°F 200533%4%
Sep 1559°F34°F72°F 201829°F 201633%5%
Sep 1659°F34°F72°F 201824°F 200632%5%
Sep 1758°F33°F72°F 201823°F 200632%6%
Sep 1858°F33°F73°F 201828°F 200632%6%
Sep 1958°F33°F73°F 201027°F 201531%6%
Sep 2057°F32°F69°F 202228°F 201331%7%
Sep 2157°F32°F69°F 201523°F 200931%7%
Sep 2256°F32°F65°F 201819°F 200431%7%
Sep 2356°F32°F66°F 201525°F 200631%8%
Sep 2456°F31°F68°F 202026°F 200931%8%
Sep 2555°F31°F69°F 202024°F 200631%9%
Sep 2655°F31°F71°F 201424°F 201731%9%
Sep 2754°F30°F70°F 201524°F 201331%9%
Sep 2854°F30°F72°F 201020°F 202031%10%
Sep 2953°F30°F70°F 202428°F 200331%10%
Sep 3053°F30°F67°F 201821°F 200931%11%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Nederland, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

September 1
sunrise 6:30 AM, sunset 7:33 PM
September 30
sunrise 6:58 AM, sunset 6:46 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094075 (Boulder 14 W), public domain. Records: NOAA GHCN-Daily, station USW00094075, 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.