October is close to Billings's year-round average, with average highs near 15.3°C and lows around 2.3°C (mean 8.8°C). It is about average for rainfall, averaging 35 mm of rainfall and 58% relative humidity across the period.
October is close to Billings's year-round average. Across 45 years of records, the warmest October in Billings was 2024 — when the month averaged 12.9°C — while the coldest were 2009 and 2019 at 3.8°C. Typical October days reach 15.3°C with nights near 2.3°C. The long-term trend is warming, about 0.2°C per decade.
October is about average for rainfall in Billings, averaging 35 mm of rainfall. The wettest October on record was 2016 with 73 mm, while the driest was 1987 at 1 mm.
Relative humidity in Billings during October averages 58%. The most humid October was 2013 at 68%, and the least humid was 2003 at 45%.
October receives about 3 kWh/m²/day of solar energy in Billings. The sunniest Octobers were 1987 and 2024 at 3.4 kWh/m²/day, and the cloudiest was 2009 at 2.5.
Average wind speed in Billings during October is 2.9 m/s. The windiest October was 2017 at 3.9 m/s, while the calmest was 2000 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.7°C | 8.6°C | 8.2°C | 8.9°C | 9.9°C | +1.2°C |
| Avg High | 15.5°C | 15.2°C | 14.5°C | 15.3°C | 16.3°C | +0.8°C |
| Avg Low | 1.9°C | 2.0°C | 1.9°C | 2.6°C | 3.5°C | +1.6°C |
| Avg Rain | 24 mm | 31 mm | 42 mm | 36 mm | 42 mm | +18 mm |
October temperatures in Billings have risen by about 2.6°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -17.4°C (2020) to a record high of 32.6°C (2011).
Rainfall in October is about average for rainfall, averaging 35 mm, with a wettest year of 73 mm.
A good time to visit Billings
October is a good time to visit Billings, with days averaging 15.3°C and nights around 2.3°C (mean 8.8°C, close to Billings's yearly average) and moderate rainfall. August and July are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 15.7°C | 9.6°C | 3.5°C | 25.7°C | -1.7°C | 59 mm | 60% | 2.6 m/s | 2.9 |
| 2024 🔥 | 20.2°C | 12.9°C | 5.6°C | 31.0°C | -2.8°C | 14 mm | 51% | 2.4 m/s | 3.4 |
| 2023 | 14.4°C | 8.3°C | 2.3°C | 26.9°C | -10.5°C | 51 mm | 65% | 2.5 m/s | 2.8 |
| 2022 | 18.0°C | 11.5°C | 5.0°C | 25.8°C | -1.6°C | 39 mm | 56% | 2.8 m/s | 3.2 |
| 2021 | 16.5°C | 10.4°C | 4.2°C | 29.8°C | -5.1°C | 36 mm | 57% | 2.9 m/s | 2.7 |
| 2020 | 13.1°C | 6.9°C | 0.6°C | 29.0°C | -17.4°C | 54 mm | 61% | 3.4 m/s | 2.9 |
| 2019 | 10.0°C | 3.8°C | -2.4°C | 22.1°C | -14.6°C | 34 mm | 65% | 3.5 m/s | 3 |
| 2018 | 14.1°C | 7.9°C | 1.6°C | 23.6°C | -6.7°C | 21 mm | 64% | 2.9 m/s | 2.9 |
| 2017 | 15.1°C | 8.2°C | 1.4°C | 25.2°C | -4.7°C | 12 mm | 53% | 3.9 m/s | 3.3 |
| 2016 🌧️ | 16.2°C | 10.0°C | 3.7°C | 27.7°C | -6.4°C | 73 mm | 66% | 3 m/s | 2.8 |
| 2015 | 18.0°C | 11.6°C | 5.1°C | 30.0°C | -2.1°C | 45 mm | 58% | 2.7 m/s | 3.1 |
| 2014 | 18.5°C | 11.7°C | 4.9°C | 25.8°C | -2.6°C | 11 mm | 58% | 3.1 m/s | 3.2 |
| 2013 | 11.9°C | 6.2°C | 0.5°C | 22.8°C | -5.5°C | 55 mm | 68% | 3.2 m/s | 2.7 |
| 2012 | 14.0°C | 7.8°C | 1.7°C | 25.6°C | -6.6°C | 33 mm | 60% | 3 m/s | 2.6 |
| 2011 | 16.8°C | 10.5°C | 4.2°C | 32.6°C | -3.6°C | 51 mm | 59% | 3 m/s | 2.9 |
| 2010 | 18.5°C | 11.7°C | 4.8°C | 30.9°C | -3.2°C | 24 mm | 57% | 2.8 m/s | 3.1 |
| 2009 ❄️ | 9.1°C | 3.8°C | -1.5°C | 23.9°C | -10.1°C | 43 mm | 66% | 3.4 m/s | 2.5 |
| 2008 | 15.0°C | 8.7°C | 2.4°C | 27.3°C | -6.2°C | 49 mm | 61% | 3 m/s | 2.9 |
| 2007 | 15.5°C | 9.1°C | 2.7°C | 25.7°C | -2.6°C | 60 mm | 61% | 3.1 m/s | 3 |
| 2006 | 12.7°C | 6.6°C | 0.5°C | 25.9°C | -8.3°C | 66 mm | 66% | 3 m/s | 2.6 |
| 2005 | 16.3°C | 10.0°C | 3.6°C | 29.3°C | -4.7°C | 50 mm | 63% | 2.4 m/s | 3 |
| 2004 | 15.5°C | 9.2°C | 2.9°C | 28.9°C | -4.1°C | 54 mm | 59% | 2.5 m/s | 2.9 |
| 2003 | 19.0°C | 12.1°C | 5.1°C | 29.7°C | -9.2°C | 35 mm | 45% | 3.2 m/s | 3.3 |
| 2002 | 11.3°C | 5.1°C | -1.0°C | 24.1°C | -10.6°C | 23 mm | 59% | 2.7 m/s | 3 |
| 2001 | 14.9°C | 8.5°C | 2.1°C | 30.0°C | -4.0°C | 19 mm | 49% | 3.4 m/s | 2.9 |
| 2000 | 15.6°C | 8.9°C | 2.2°C | 25.2°C | -5.7°C | 22 mm | 57% | 2.3 m/s | 3.1 |
| 1999 | 17.4°C | 10.0°C | 2.7°C | 24.9°C | -5.1°C | 7 mm | 50% | 3 m/s | 3.1 |
| 1998 | 16.4°C | 9.7°C | 3.1°C | 24.8°C | -1.0°C | 25 mm | 55% | 2.6 m/s | 3.2 |
| 1997 | 15.1°C | 8.7°C | 2.3°C | 30.6°C | -6.4°C | 29 mm | 59% | 3.3 m/s | 2.8 |
| 1996 | 14.8°C | 8.3°C | 1.8°C | 29.1°C | -8.1°C | 26 mm | 54% | 2.9 m/s | 3.2 |
| 1995 | 13.6°C | 7.6°C | 1.6°C | 26.9°C | -7.2°C | 33 mm | 56% | 3.7 m/s | 2.9 |
| 1994 | 14.0°C | 8.0°C | 2.0°C | 24.1°C | -3.1°C | 72 mm | 61% | 3.1 m/s | 2.9 |
| 1993 | 14.5°C | 7.9°C | 1.3°C | 28.2°C | -8.4°C | 49 mm | 63% | 2.6 m/s | 3 |
| 1992 | 16.7°C | 9.6°C | 2.5°C | 30.9°C | -6.9°C | 20 mm | 54% | 2.7 m/s | 2.9 |
| 1991 | 14.3°C | 7.7°C | 1.1°C | 27.5°C | -15.9°C | 25 mm | 52% | 3.1 m/s | 2.9 |
| 1990 | 15.3°C | 8.4°C | 1.4°C | 27.2°C | -3.7°C | 29 mm | 50% | 3.4 m/s | 2.9 |
| 1989 | 14.6°C | 8.2°C | 1.8°C | 26.4°C | -7.5°C | 46 mm | 58% | 2.9 m/s | 2.8 |
| 1988 | 18.6°C | 11.3°C | 4.0°C | 26.7°C | -6.8°C | 20 mm | 51% | 2.6 m/s | 3.3 |
| 1987 | 17.0°C | 9.4°C | 1.7°C | 29.5°C | -5.9°C | 1 mm | 47% | 2.5 m/s | 3.4 |
| 1986 | 16.6°C | 9.7°C | 2.9°C | 23.3°C | -5.3°C | 14 mm | 59% | 2.5 m/s | 3.3 |
| 1985 | 14.7°C | 7.7°C | 0.8°C | 23.4°C | -9.0°C | 17 mm | 55% | 3.5 m/s | 3 |
| 1984 | 12.8°C | 6.6°C | 0.5°C | 26.5°C | -11.0°C | 19 mm | 55% | 2.6 m/s | 2.9 |
| 1983 | 16.5°C | 9.6°C | 2.8°C | 23.6°C | -1.7°C | 38 mm | 61% | 2.4 m/s | — |
| 1982 | 14.5°C | 8.1°C | 1.7°C | 23.9°C | -5.2°C | 27 mm | 63% | 2.9 m/s | — |
| 1981 | 13.9°C | 7.3°C | 0.6°C | 28.0°C | -5.9°C | 38 mm | 59% | 2.7 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 15.3°C with lows near 2.3°C (mean 8.8°C), based on 45 years of NASA POWER data.
October averages 35 mm of rainfall in Billings, about average for rainfall. The wettest on record was 73 mm in 2016.
The hottest October reached 32.6°C in 2011. The coldest dipped to -17.4°C in 2020.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.6°C. Daytime highs moved from 14.5°C to 17°C and overnight lows from 1.3°C to 4.1°C over the same span.
October is close to Billings's year-round average and about average for rainfall, so plan for around 15.3°C daytime highs and 2.3°C at night.
Not quite — October is the 7th coolest month in Billings, averaging 8.8°C.
For October in Billings, pack warm layers and a jacket for chilly mornings, with typical highs of 15.3°C and lows of 2.3°C.
Relative humidity in October averages 58% — moderately humid.
Average wind speed in October is 2.9 m/s. The windiest October on record averaged 3.9 m/s (2017).
The wettest October on record was 2016 with 73 mm. On average, October sees 35 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 Billings behaves each October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
