October is one of the warmer months of the year in Post Falls, with average highs near 13.7°C and lows around 2.4°C (mean 8°C). It is about average for rainfall, averaging 60 mm of rainfall and 68% relative humidity across the period.
October is one of the warmer months of the year in Post Falls. Across 45 years of records, the warmest Octobers in Post Falls were 2015 and 2022 — when the month averaged 12.2°C — while the coldest was 2019 at 4.7°C. Typical October days reach 13.7°C with nights near 2.4°C. The long-term trend is warming, about 0.3°C per decade.
October is about average for rainfall in Post Falls, averaging 60 mm of rainfall. The wettest October on record was 2016 with 197 mm, while the driest was 1987 at 3 mm.
Relative humidity in Post Falls during October averages 68%. The most humid October was 2016 at 83%, and the least humid was 1987 at 43%.
October receives about 2.7 kWh/m²/day of solar energy in Post Falls. The sunniest October was 1987 at 3.3 kWh/m²/day, and the cloudiest was 2016 at 1.9.
Average wind speed in Post Falls during October is 1 m/s. The windiest October was 1985 at 1.3 m/s, while the calmest were 2005, 2018 and 2023, among others at 0.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.1°C | 7.5°C | 7.7°C | 8.3°C | 9.3°C | +1.2°C |
| Avg High | 14.1°C | 13.0°C | 13.4°C | 13.7°C | 15.1°C | +1°C |
| Avg Low | 2.1°C | 2.0°C | 2.1°C | 2.9°C | 3.4°C | +1.3°C |
| Avg Rain | 45 mm | 71 mm | 52 mm | 73 mm | 54 mm | +10 mm |
October temperatures in Post Falls have risen by about 3.1°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -13.8°C (2020) to a record high of 29.4°C (1987).
Rainfall in October is about average for rainfall, averaging 60 mm, with a wettest year of 197 mm.
A good time to visit Post Falls
October is a good time to visit Post Falls, with days averaging 13.7°C and nights around 2.4°C (mean 8°C, close to Post Falls'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 | 13.7°C | 8.3°C | 2.8°C | 26.1°C | -2.6°C | 76 mm | 71% | 1.1 m/s | 2.7 |
| 2024 | 15.5°C | 9.2°C | 3.0°C | 24.4°C | -1.8°C | 40 mm | 67% | 1 m/s | 2.8 |
| 2023 | 15.7°C | 9.9°C | 4.0°C | 27.5°C | -5.6°C | 24 mm | 66% | 0.9 m/s | 2.8 |
| 2022 | 18.3°C | 12.2°C | 6.0°C | 26.9°C | -0.6°C | 40 mm | 63% | 1 m/s | 3 |
| 2021 | 14.5°C | 8.6°C | 2.6°C | 24.0°C | -3.6°C | 59 mm | 66% | 1.1 m/s | 2.7 |
| 2020 | 12.9°C | 7.5°C | 2.1°C | 27.2°C | -13.8°C | 86 mm | 71% | 1.2 m/s | 2.7 |
| 2019 ❄️ | 10.0°C | 4.7°C | -0.7°C | 18.5°C | -8.5°C | 60 mm | 65% | 1.1 m/s | 2.7 |
| 2018 | 14.2°C | 8.2°C | 2.2°C | 21.9°C | -0.9°C | 47 mm | 66% | 0.9 m/s | 2.7 |
| 2017 | 12.6°C | 7.0°C | 1.5°C | 18.4°C | -2.3°C | 77 mm | 67% | 1.2 m/s | 2.7 |
| 2016 🌧️ | 12.1°C | 8.0°C | 3.8°C | 20.3°C | -2.8°C | 197 mm | 83% | 1.1 m/s | 1.9 |
| 2015 🔥 | 18.1°C | 12.2°C | 6.2°C | 25.7°C | 1.2°C | 54 mm | 61% | 1 m/s | 2.7 |
| 2014 | 16.3°C | 11.0°C | 5.7°C | 25.7°C | -0.1°C | 45 mm | 69% | 1.1 m/s | 2.6 |
| 2013 | 13.1°C | 6.9°C | 0.7°C | 19.2°C | -3.9°C | 12 mm | 67% | 1 m/s | 3.1 |
| 2012 | 13.3°C | 8.0°C | 2.6°C | 22.8°C | -2.6°C | 99 mm | 71% | 1.2 m/s | 2.6 |
| 2011 | 12.8°C | 8.1°C | 3.4°C | 24.0°C | -3.6°C | 56 mm | 75% | 1 m/s | 2.3 |
| 2010 | 14.7°C | 9.3°C | 4.0°C | 29.4°C | -1.0°C | 82 mm | 72% | 1 m/s | 2.5 |
| 2009 | 10.3°C | 5.3°C | 0.3°C | 20.2°C | -6.6°C | 84 mm | 71% | 1.1 m/s | 2.5 |
| 2008 | 14.0°C | 7.9°C | 1.8°C | 29.1°C | -4.7°C | 21 mm | 62% | 1 m/s | 2.8 |
| 2007 | 12.7°C | 7.4°C | 2.2°C | 25.4°C | -3.9°C | 56 mm | 73% | 1.1 m/s | 2.5 |
| 2006 | 13.8°C | 7.7°C | 1.6°C | 22.2°C | -6.4°C | 30 mm | 63% | 1 m/s | 2.9 |
| 2005 | 13.7°C | 8.6°C | 3.5°C | 23.1°C | -1.2°C | 68 mm | 78% | 0.9 m/s | 2.3 |
| 2004 | 14.0°C | 8.5°C | 3.0°C | 23.2°C | -3.0°C | 74 mm | 74% | 1 m/s | 2.8 |
| 2003 | 16.2°C | 10.5°C | 4.7°C | 28.9°C | -6.9°C | 44 mm | 61% | 1.2 m/s | 2.7 |
| 2002 | 12.8°C | 6.5°C | 0.3°C | 19.5°C | -9.8°C | 13 mm | 57% | 1 m/s | 3.2 |
| 2001 | 12.4°C | 7.2°C | 2.0°C | 24.9°C | -1.3°C | 96 mm | 71% | 1.2 m/s | 2.5 |
| 2000 | 14.0°C | 7.8°C | 1.6°C | 21.7°C | -3.4°C | 36 mm | 70% | 0.9 m/s | 2.7 |
| 1999 | 14.2°C | 8.4°C | 2.5°C | 22.4°C | -2.7°C | 59 mm | 61% | 1.1 m/s | 2.8 |
| 1998 | 13.5°C | 7.8°C | 2.2°C | 22.9°C | -3.0°C | 29 mm | 69% | 0.9 m/s | 2.6 |
| 1997 | 12.0°C | 6.9°C | 1.8°C | 26.2°C | -3.6°C | 93 mm | 76% | 1.1 m/s | 2.6 |
| 1996 | 11.5°C | 6.5°C | 1.5°C | 26.6°C | -5.9°C | 99 mm | 74% | 1 m/s | 2.6 |
| 1995 | 10.5°C | 5.7°C | 0.9°C | 19.4°C | -5.5°C | 99 mm | 78% | 1.1 m/s | 2.5 |
| 1994 | 13.2°C | 7.4°C | 1.7°C | 23.5°C | -4.0°C | 115 mm | 68% | 1.1 m/s | 2.8 |
| 1993 | 14.9°C | 9.0°C | 3.1°C | 24.3°C | -2.7°C | 34 mm | 67% | 0.9 m/s | 2.9 |
| 1992 | 15.1°C | 9.3°C | 3.4°C | 27.2°C | -3.7°C | 35 mm | 65% | 1 m/s | 2.6 |
| 1991 | 13.7°C | 7.8°C | 2.0°C | 26.1°C | -7.5°C | 29 mm | 56% | 1.1 m/s | 3 |
| 1990 | 10.9°C | 6.0°C | 1.2°C | 18.8°C | -3.7°C | 117 mm | 74% | 1.2 m/s | 2.6 |
| 1989 | 13.6°C | 7.7°C | 1.9°C | 20.3°C | -4.5°C | 52 mm | 69% | 1 m/s | 2.8 |
| 1988 | 18.8°C | 12.1°C | 5.4°C | 28.7°C | -4.7°C | 33 mm | 59% | 1 m/s | 2.9 |
| 1987 | 17.9°C | 10.4°C | 2.9°C | 29.4°C | -1.7°C | 3 mm | 43% | 0.9 m/s | 3.3 |
| 1986 | 16.7°C | 9.9°C | 3.1°C | 21.6°C | -1.6°C | 25 mm | 64% | 0.9 m/s | 3.1 |
| 1985 | 11.1°C | 5.7°C | 0.3°C | 18.9°C | -6.2°C | 75 mm | 71% | 1.3 m/s | 2.5 |
| 1984 | 10.6°C | 5.5°C | 0.4°C | 25.0°C | -11.1°C | 51 mm | 70% | 1.1 m/s | 2.6 |
| 1983 | 13.7°C | 7.9°C | 2.0°C | 19.4°C | -2.5°C | 41 mm | 71% | 0.9 m/s | — |
| 1982 | 12.3°C | 7.0°C | 1.7°C | 22.2°C | -4.3°C | 63 mm | 76% | 1 m/s | — |
| 1981 | 11.8°C | 6.5°C | 1.2°C | 21.0°C | -3.9°C | 58 mm | 71% | 1 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 13.7°C with lows near 2.4°C (mean 8°C), based on 45 years of NASA POWER data.
October averages 60 mm of rainfall in Post Falls, about average for rainfall. The wettest on record was 197 mm in 2016.
The hottest October reached 29.4°C in 1987. The coldest dipped to -13.8°C in 2020.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 3.1°C. Daytime highs moved from 11.9°C to 15.5°C and overnight lows from 1.1°C to 3.7°C over the same span.
October is one of the warmer months of the year in Post Falls and about average for rainfall, so plan for around 13.7°C daytime highs and 2.4°C at night.
Not quite — October is the 7th coolest month in Post Falls, averaging 8°C.
For October in Post Falls, pack warm layers and a jacket for chilly mornings, with typical highs of 13.7°C and lows of 2.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 68% — moderately humid.
Average wind speed in October is 1 m/s. The windiest October on record averaged 1.3 m/s (1985).
The wettest October on record was 2016 with 197 mm. On average, October sees 60 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 Post Falls 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.
