September is one of the warmer months of the year in Pueblo, with average highs near 27.2°C and lows around 11.6°C (mean 19.4°C). It is about average for rainfall, averaging 28 mm of rainfall and 45% relative humidity across the period.
September is one of the warmer months of the year in Pueblo. Across 45 years of records, the warmest September in Pueblo was 2019 — when the month averaged 22.8°C — while the coldest was 2006 at 15.9°C. Typical September days reach 27.2°C with nights near 11.6°C. The long-term trend is warming, about 0.6°C per decade.
September is about average for rainfall in Pueblo, averaging 28 mm of rainfall. The wettest September on record was 2013 with 92 mm, while the driest was 2010 at 5 mm.
Relative humidity in Pueblo during September averages 45%. The most humid September was 1982 at 56%, and the least humid was 2010 at 35%.
September receives about 5.5 kWh/m²/day of solar energy in Pueblo. The sunniest September was 2010 at 6.2 kWh/m²/day, and the cloudiest was 2017 at 4.7.
Average wind speed in Pueblo during September is 2.4 m/s. The windiest Septembers were 1983 and 1988 at 2.9 m/s, while the calmest was 2025 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.5°C | 18.8°C | 18.9°C | 20.6°C | 20.8°C | +2.3°C |
| Avg High | 26.3°C | 26.4°C | 26.8°C | 28.4°C | 28.7°C | +2.4°C |
| Avg Low | 10.8°C | 11.2°C | 10.9°C | 12.8°C | 12.9°C | +2.1°C |
| Avg Rain | 26 mm | 29 mm | 27 mm | 30 mm | 25 mm | -1 mm |
September temperatures in Pueblo have risen by about 2.4°C between 1981–1985 and 2021–2025.
September has ranged from a record low of -5.5°C (1985) to a record high of 37.3°C (2019).
Rainfall in September is about average for rainfall, averaging 28 mm, with a wettest year of 92 mm.
One of the best times to visit Pueblo
September is one of the best times to visit Pueblo. Expect days averaging 27.2°C and nights around 11.6°C (mean 19.4°C) — warmer than Pueblo's yearly average — with low rainfall (28 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 27.9°C | 20.2°C | 12.4°C | 32.9°C | 8.2°C | 28 mm | 49% | 1.9 m/s | 5.2 |
| 2024 | 29.8°C | 21.6°C | 13.4°C | 33.7°C | 7.8°C | 18 mm | 39% | 2.3 m/s | 5.5 |
| 2023 | 28.7°C | 20.7°C | 12.8°C | 37.3°C | 8.3°C | 40 mm | 42% | 2.2 m/s | 5.7 |
| 2022 | 28.9°C | 21.2°C | 13.4°C | 34.8°C | 7.3°C | 14 mm | 45% | 2.1 m/s | 5.5 |
| 2021 | 29.7°C | 21.9°C | 14.1°C | 37.2°C | 5.7°C | 30 mm | 40% | 2.3 m/s | 5.8 |
| 2020 | 27.4°C | 19.2°C | 11.1°C | 37.2°C | -0.9°C | 20 mm | 38% | 2.3 m/s | 5.5 |
| 2019 🔥 | 30.9°C | 22.8°C | 14.7°C | 37.3°C | 8.9°C | 13 mm | 38% | 2.8 m/s | 5.9 |
| 2018 | 28.7°C | 20.9°C | 13.1°C | 34.8°C | 4.8°C | 17 mm | 44% | 2.2 m/s | 5.6 |
| 2017 | 26.1°C | 18.9°C | 11.7°C | 35.2°C | 5.4°C | 58 mm | 53% | 2.4 m/s | 4.7 |
| 2016 | 29.1°C | 20.7°C | 12.3°C | 34.0°C | 6.7°C | 9 mm | 39% | 2.5 m/s | 5.8 |
| 2015 | 29.8°C | 22.2°C | 14.6°C | 34.1°C | 8.3°C | 7 mm | 42% | 2.2 m/s | 5.7 |
| 2014 | 27.8°C | 20.0°C | 12.2°C | 35.5°C | 2.0°C | 22 mm | 50% | 2.2 m/s | 5.4 |
| 2013 🌧️ | 27.6°C | 20.3°C | 13.0°C | 35.4°C | 2.8°C | 92 mm | 53% | 2.5 m/s | 5.4 |
| 2012 | 27.5°C | 19.9°C | 12.3°C | 35.0°C | 7.8°C | 34 mm | 41% | 2.1 m/s | 5.4 |
| 2011 | 26.3°C | 18.9°C | 11.6°C | 36.0°C | 5.5°C | 43 mm | 45% | 2.3 m/s | 5.6 |
| 2010 | 30.0°C | 21.5°C | 12.9°C | 34.8°C | 8.2°C | 5 mm | 35% | 2.6 m/s | 6.2 |
| 2009 | 24.9°C | 17.6°C | 10.3°C | 33.5°C | 3.0°C | 39 mm | 53% | 2.5 m/s | 5.2 |
| 2008 | 25.8°C | 18.1°C | 10.5°C | 31.1°C | 6.9°C | 29 mm | 50% | 2.5 m/s | 5.7 |
| 2007 | 27.6°C | 19.9°C | 12.2°C | 33.1°C | 6.1°C | 16 mm | 46% | 2.6 m/s | 5.5 |
| 2006 ❄️ | 23.5°C | 15.9°C | 8.3°C | 29.1°C | 2.3°C | 45 mm | 53% | 2.2 m/s | 5.4 |
| 2005 | 28.6°C | 20.7°C | 12.8°C | 33.3°C | 6.1°C | 24 mm | 42% | 2.5 m/s | 5.5 |
| 2004 | 27.1°C | 19.1°C | 11.0°C | 33.6°C | 3.9°C | 18 mm | 48% | 2.5 m/s | 5.5 |
| 2003 | 26.0°C | 17.5°C | 9.1°C | 32.4°C | 2.0°C | 23 mm | 44% | 2.4 m/s | 5.6 |
| 2002 | 27.2°C | 19.4°C | 11.7°C | 35.4°C | 3.9°C | 32 mm | 43% | 2.6 m/s | 5.4 |
| 2001 | 28.8°C | 20.5°C | 12.1°C | 33.2°C | 2.3°C | 26 mm | 41% | 2.2 m/s | 5.8 |
| 2000 | 28.6°C | 20.0°C | 11.3°C | 35.7°C | -0.1°C | 22 mm | 37% | 2.5 m/s | 5.5 |
| 1999 | 24.6°C | 17.1°C | 9.6°C | 32.7°C | -2.2°C | 20 mm | 48% | 2.3 m/s | 5.4 |
| 1998 | 29.2°C | 21.3°C | 13.4°C | 35.0°C | 8.3°C | 22 mm | 45% | 2.4 m/s | 6 |
| 1997 | 27.0°C | 19.9°C | 12.9°C | 31.3°C | 6.1°C | 32 mm | 54% | 2.1 m/s | 5.3 |
| 1996 | 25.0°C | 17.5°C | 10.0°C | 32.7°C | -0.7°C | 45 mm | 52% | 2.3 m/s | 5.3 |
| 1995 | 25.4°C | 18.1°C | 10.8°C | 35.9°C | -2.8°C | 42 mm | 50% | 2.2 m/s | 4.9 |
| 1994 | 27.4°C | 19.5°C | 11.6°C | 32.6°C | 0.1°C | 16 mm | 42% | 2.3 m/s | 5.5 |
| 1993 | 25.5°C | 17.1°C | 8.7°C | 32.1°C | -0.3°C | 29 mm | 46% | 2.4 m/s | 5.2 |
| 1992 | 27.0°C | 19.0°C | 10.9°C | 32.4°C | 5.9°C | 6 mm | 42% | 2.4 m/s | 5.7 |
| 1991 | 25.4°C | 18.0°C | 10.6°C | 30.4°C | 3.7°C | 25 mm | 51% | 2.4 m/s | 5.6 |
| 1990 | 27.8°C | 20.4°C | 13.0°C | 34.5°C | 7.3°C | 56 mm | 48% | 2.4 m/s | 5.3 |
| 1989 | 26.3°C | 18.2°C | 10.1°C | 34.3°C | 1.5°C | 37 mm | 46% | 2.7 m/s | 5.4 |
| 1988 | 26.6°C | 18.3°C | 10.1°C | 34.7°C | 3.2°C | 30 mm | 40% | 2.9 m/s | 5.1 |
| 1987 | 25.9°C | 18.5°C | 11.1°C | 32.8°C | 6.8°C | 18 mm | 48% | 2.2 m/s | 5.4 |
| 1986 | 25.7°C | 18.0°C | 10.3°C | 30.2°C | 5.1°C | 16 mm | 45% | 2.8 m/s | 4.8 |
| 1985 | 24.6°C | 16.8°C | 8.9°C | 32.8°C | -5.5°C | 40 mm | 47% | 2.8 m/s | 5 |
| 1984 | 26.2°C | 18.3°C | 10.5°C | 34.2°C | -1.5°C | 15 mm | 46% | 2.6 m/s | 5.3 |
| 1983 | 28.9°C | 20.7°C | 12.5°C | 36.3°C | -0.7°C | 7 mm | 38% | 2.9 m/s | — |
| 1982 | 25.2°C | 18.1°C | 11.0°C | 33.8°C | 4.3°C | 50 mm | 56% | 2.4 m/s | — |
| 1981 | 27.3°C | 19.8°C | 12.3°C | 32.9°C | 6.8°C | 21 mm | 47% | 2.3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 27.2°C with lows near 11.6°C (mean 19.4°C), based on 45 years of NASA POWER data.
September averages 28 mm of rainfall in Pueblo, about average for rainfall. The wettest on record was 92 mm in 2013.
The hottest September reached 37.3°C in 2019. The coldest dipped to -5.5°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 2.4°C. Daytime highs moved from 26.4°C to 29°C and overnight lows from 11°C to 13.2°C over the same span.
September is one of the warmer months of the year in Pueblo and about average for rainfall, so plan for around 27.2°C daytime highs and 11.6°C at night.
Not quite — September is the 9th coolest month in Pueblo, averaging 19.4°C.
For September in Pueblo, pack light layers you can adjust through the day, with typical highs of 27.2°C and lows of 11.6°C.
Relative humidity in September averages 45% — relatively dry.
Average wind speed in September is 2.4 m/s. The windiest September on record averaged 2.9 m/s (1983).
The wettest September on record was 2013 with 92 mm. On average, September sees 28 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Pueblo behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
