September is one of the warmer months of the year in Yorkton, with average highs near 19°C and lows around 6.3°C (mean 12.7°C). It is about average for rainfall, averaging 40 mm of rainfall and 65% relative humidity across the period.
September is one of the warmer months of the year in Yorkton. Across 45 years of records, the warmest Septembers in Yorkton were 2009 and 2024 — when the month averaged 17.2°C — while the coldest was 1985 at 8.2°C. Typical September days reach 19°C with nights near 6.3°C. The long-term trend is warming, about 0.8°C per decade.
September is about average for rainfall in Yorkton, averaging 40 mm of rainfall. The wettest September on record was 1984 with 92 mm, while the driest was 2012 at 2 mm.
Relative humidity in Yorkton during September averages 65%. The most humid September was 2010 at 78%, and the least humid was 2012 at 54%.
September receives about 3.7 kWh/m²/day of solar energy in Yorkton. The sunniest September was 2011 at 4.4 kWh/m²/day, and the cloudiest was 2018 at 2.9.
Average wind speed in Yorkton during September is 3.2 m/s. The windiest September was 1983 at 3.7 m/s, while the calmest was 2025 at 2.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.2°C | 12.3°C | 12.8°C | 12.7°C | 15.1°C | +3.9°C |
| Avg High | 17.3°C | 18.8°C | 19.4°C | 19.1°C | 21.6°C | +4.3°C |
| Avg Low | 5.1°C | 5.8°C | 6.2°C | 6.4°C | 8.6°C | +3.5°C |
| Avg Rain | 54 mm | 39 mm | 31 mm | 43 mm | 29 mm | -24 mm |
September temperatures in Yorkton have risen by about 5.3°C between 1981–1985 and 2021–2025.
September has ranged from a record low of -6.4°C (1984) to a record high of 33.6°C (1991).
Rainfall in September is about average for rainfall, averaging 40 mm, with a wettest year of 92 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.9°C per decade while lows rose 0.7°C per decade, widening the gap between day and night.
One of the best times to visit Yorkton
September is one of the best times to visit Yorkton. Expect days averaging 19°C and nights around 6.3°C (mean 12.7°C) — warmer than Yorkton's yearly average — with moderate rainfall (40 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 | 21.1°C | 15.4°C | 9.7°C | 29.1°C | 3.2°C | 35 mm | 73% | 2.7 m/s | 3.6 |
| 2024 | 24.3°C | 17.2°C | 10.2°C | 33.2°C | 5.7°C | 64 mm | 64% | 3.4 m/s | 3.7 |
| 2023 | 22.7°C | 16.2°C | 9.8°C | 32.3°C | 4.4°C | 18 mm | 64% | 2.9 m/s | 3.7 |
| 2022 | 21.9°C | 15.2°C | 8.6°C | 33.2°C | 1.4°C | 20 mm | 61% | 3.3 m/s | 4 |
| 2021 | 22.0°C | 15.0°C | 8.0°C | 31.4°C | 3.2°C | 10 mm | 60% | 3.4 m/s | 4 |
| 2020 | 17.8°C | 11.6°C | 5.4°C | 25.3°C | -1.9°C | 27 mm | 65% | 3.6 m/s | 3.5 |
| 2019 | 18.1°C | 12.8°C | 7.5°C | 30.2°C | -2.7°C | 74 mm | 73% | 3.1 m/s | 3.2 |
| 2018 | 15.1°C | 9.1°C | 3.2°C | 27.4°C | -5.7°C | 28 mm | 66% | 3.1 m/s | 2.9 |
| 2017 | 19.8°C | 13.4°C | 7.0°C | 31.6°C | 1.7°C | 32 mm | 61% | 3.2 m/s | 3.8 |
| 2016 | 19.7°C | 13.3°C | 6.9°C | 31.8°C | -0.9°C | 42 mm | 65% | 3.2 m/s | 3.6 |
| 2015 | 20.2°C | 13.6°C | 7.0°C | 32.0°C | 0.0°C | 47 mm | 66% | 3.2 m/s | 3.6 |
| 2014 | 18.6°C | 12.2°C | 5.9°C | 30.3°C | -2.5°C | 59 mm | 71% | 3 m/s | 3.6 |
| 2013 | 21.8°C | 15.2°C | 8.6°C | 31.4°C | 1.8°C | 38 mm | 64% | 2.9 m/s | 3.9 |
| 2012 | 20.4°C | 13.3°C | 6.1°C | 29.2°C | -1.9°C | 2 mm | 54% | 3.4 m/s | 4.3 |
| 2011 | 21.1°C | 14.3°C | 7.4°C | 29.4°C | -1.9°C | 36 mm | 66% | 3 m/s | 4.4 |
| 2010 | 15.7°C | 10.2°C | 4.7°C | 25.9°C | -2.0°C | 71 mm | 78% | 3.2 m/s | 3.5 |
| 2009 🔥 | 24.5°C | 17.2°C | 9.8°C | 30.3°C | 1.5°C | 17 mm | 62% | 3.3 m/s | 4.1 |
| 2008 | 18.1°C | 11.8°C | 5.5°C | 26.4°C | 1.7°C | 36 mm | 68% | 3.1 m/s | 3.7 |
| 2007 | 18.6°C | 12.1°C | 5.5°C | 30.1°C | -2.8°C | 30 mm | 66% | 3.1 m/s | 3.6 |
| 2006 | 19.2°C | 12.6°C | 6.0°C | 29.8°C | 0.8°C | 54 mm | 68% | 3.1 m/s | 3.6 |
| 2005 | 18.9°C | 12.7°C | 6.5°C | 28.4°C | 0.5°C | 21 mm | 71% | 3.3 m/s | 3.7 |
| 2004 | 19.6°C | 13.0°C | 6.4°C | 26.2°C | -1.3°C | 22 mm | 69% | 2.9 m/s | 3.5 |
| 2003 | 17.8°C | 11.7°C | 5.5°C | 30.4°C | -3.7°C | 32 mm | 64% | 3.4 m/s | 3.5 |
| 2002 | 19.0°C | 12.2°C | 5.5°C | 27.2°C | -5.2°C | 26 mm | 65% | 3.3 m/s | 3.9 |
| 2001 | 20.8°C | 13.6°C | 6.4°C | 28.2°C | -2.4°C | 28 mm | 59% | 2.8 m/s | 4 |
| 2000 | 17.3°C | 11.2°C | 5.2°C | 27.0°C | -4.6°C | 47 mm | 68% | 3.2 m/s | 3.5 |
| 1999 | 16.3°C | 10.2°C | 4.1°C | 25.3°C | -3.7°C | 39 mm | 67% | 3.2 m/s | 3.5 |
| 1998 | 20.8°C | 13.9°C | 7.0°C | 32.8°C | -0.3°C | 77 mm | 61% | 3.1 m/s | 4 |
| 1997 | 21.1°C | 14.5°C | 7.9°C | 29.0°C | 0.2°C | 23 mm | 60% | 3.6 m/s | 3.8 |
| 1996 | 17.2°C | 11.7°C | 6.2°C | 25.6°C | -4.1°C | 32 mm | 65% | 3.2 m/s | 3.5 |
| 1995 | 19.0°C | 12.4°C | 5.7°C | 28.5°C | -5.4°C | 13 mm | 60% | 2.8 m/s | 4.3 |
| 1994 | 21.2°C | 14.4°C | 7.6°C | 27.7°C | 1.8°C | 30 mm | 64% | 2.8 m/s | 3.8 |
| 1993 | 15.8°C | 9.5°C | 3.2°C | 24.5°C | -2.2°C | 50 mm | 70% | 3.5 m/s | 3.5 |
| 1992 | 16.5°C | 10.3°C | 4.0°C | 26.6°C | -2.9°C | 59 mm | 65% | 3.4 m/s | 3.3 |
| 1991 | 18.2°C | 11.9°C | 5.6°C | 33.6°C | -3.8°C | 49 mm | 62% | 3.3 m/s | 3.6 |
| 1990 | 21.6°C | 14.4°C | 7.1°C | 30.8°C | 0.0°C | 14 mm | 57% | 3.1 m/s | 4.3 |
| 1989 | 18.9°C | 12.1°C | 5.3°C | 26.1°C | -1.2°C | 28 mm | 63% | 3.3 m/s | 4.1 |
| 1988 | 17.8°C | 11.4°C | 4.9°C | 29.5°C | -0.9°C | 24 mm | 61% | 3.5 m/s | 3.4 |
| 1987 | 20.6°C | 14.1°C | 7.6°C | 31.8°C | 4.0°C | 34 mm | 63% | 2.8 m/s | 3.8 |
| 1986 | 15.8°C | 10.3°C | 4.8°C | 23.7°C | -1.0°C | 57 mm | 68% | 2.9 m/s | 3.2 |
| 1985 ❄️ | 13.5°C | 8.2°C | 2.8°C | 22.4°C | -5.0°C | 81 mm | 72% | 3.1 m/s | 3.3 |
| 1984 🌧️ | 14.7°C | 8.7°C | 2.8°C | 29.4°C | -6.4°C | 92 mm | 66% | 3 m/s | 3.3 |
| 1983 | 16.8°C | 11.2°C | 5.6°C | 32.0°C | -4.1°C | 34 mm | 62% | 3.7 m/s | — |
| 1982 | 17.8°C | 11.4°C | 5.1°C | 29.4°C | -3.3°C | 71 mm | 65% | 3 m/s | — |
| 1981 | 19.5°C | 13.0°C | 6.6°C | 30.3°C | -0.6°C | 62 mm | 58% | 3.3 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 19°C with lows near 6.3°C (mean 12.7°C), based on 45 years of NASA POWER data.
September averages 40 mm of rainfall in Yorkton, about average for rainfall. The wettest on record was 92 mm in 1984.
The hottest September reached 33.6°C in 1991. The coldest dipped to -6.4°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 5.3°C. Daytime highs moved from 16.5°C to 22.4°C and overnight lows from 4.6°C to 9.3°C over the same span.
September is one of the warmer months of the year in Yorkton and about average for rainfall, so plan for around 19°C daytime highs and 6.3°C at night.
Not quite — September is the 9th coolest month in Yorkton, averaging 12.7°C.
For September in Yorkton, pack warm layers and a jacket for chilly mornings, with typical highs of 19°C and lows of 6.3°C.
Relative humidity in September averages 65% — moderately humid.
Average wind speed in September is 3.2 m/s. The windiest September on record averaged 3.7 m/s (1983).
The wettest September on record was 1984 with 92 mm. On average, September sees 40 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 Yorkton 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.
