August is one of the warmer months of the year in Kansas City, with average highs near 31.2°C and lows around 19.3°C (mean 25.3°C). It is a relatively wet time of year, averaging 108 mm of rainfall and 69% relative humidity across the period.
August is one of the warmer months of the year in Kansas City. Across 45 years of records, the warmest August in Kansas City was 1983 — when the month averaged 30.6°C — while the coldest was 1992 at 21.5°C. Typical August days reach 31.2°C with nights near 19.3°C. The long-term August temperature trend is broadly flat.
August is a relatively wet time of year in Kansas City, averaging 108 mm of rainfall. The wettest August on record was 2005 with 243 mm, while the driest was 1983 at 21 mm.
Relative humidity in Kansas City during August averages 69%. The most humid Augusts were 1993 and 2019 at 84%, and the least humid was 2012 at 44%.
August receives about 5.6 kWh/m²/day of solar energy in Kansas City. The sunniest August was 2010 at 6.4 kWh/m²/day, and the cloudiest was 1985 at 4.7.
Average wind speed in Kansas City during August is 2.3 m/s. The windiest Augusts were 1987, 2000 and 2018 at 2.8 m/s, while the calmest was 1996 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 25.1°C | 24.6°C | 25.8°C | 25.2°C | 25.7°C | +0.6°C |
| Avg High | 31.3°C | 30.5°C | 31.9°C | 30.9°C | 31.9°C | +0.6°C |
| Avg Low | 18.9°C | 18.8°C | 19.8°C | 19.4°C | 19.5°C | +0.6°C |
| Avg Rain | 114 mm | 83 mm | 120 mm | 134 mm | 76 mm | -38 mm |
August temperatures in Kansas City have risen by about 1°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 7.7°C (1986) to a record high of 44.4°C (2011).
Rainfall in August is a relatively wet time of year, averaging 108 mm, with a wettest year of 243 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0°C per decade while lows rose 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Kansas City
August is one of the best times to visit Kansas City. Expect days averaging 31.2°C and nights around 19.3°C (mean 25.3°C) — warmer than Kansas City's yearly average — with higher rainfall (108 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 | 30.9°C | 24.8°C | 18.7°C | 36.9°C | 13.2°C | 30 mm | 66% | 2 m/s | 5.7 |
| 2024 | 33.3°C | 26.4°C | 19.5°C | 40.4°C | 13.4°C | 79 mm | 61% | 2.3 m/s | 5.3 |
| 2023 | 33.5°C | 26.8°C | 20.2°C | 41.3°C | 13.5°C | 98 mm | 66% | 2.4 m/s | 5.7 |
| 2022 | 33.8°C | 27.1°C | 20.5°C | 37.8°C | 16.4°C | 74 mm | 62% | 2.3 m/s | 6.1 |
| 2021 | 30.8°C | 25.7°C | 20.6°C | 34.8°C | 15.4°C | 108 mm | 76% | 2.5 m/s | 5.9 |
| 2020 | 28.8°C | 23.3°C | 17.7°C | 33.3°C | 11.4°C | 67 mm | 77% | 2 m/s | 6.1 |
| 2019 | 28.3°C | 23.9°C | 19.5°C | 33.1°C | 14.3°C | 217 mm | 84% | 2.1 m/s | 5.3 |
| 2018 | 32.3°C | 26.4°C | 20.5°C | 36.6°C | 16.3°C | 136 mm | 66% | 2.8 m/s | 5.4 |
| 2017 | 27.8°C | 22.1°C | 16.5°C | 32.4°C | 11.9°C | 230 mm | 75% | 2 m/s | 5.8 |
| 2016 | 29.5°C | 24.8°C | 20.1°C | 35.2°C | 12.8°C | 165 mm | 79% | 2.1 m/s | 5.4 |
| 2015 | 28.5°C | 23.2°C | 17.8°C | 31.6°C | 10.1°C | 77 mm | 78% | 2 m/s | 5.7 |
| 2014 | 32.4°C | 26.2°C | 20.0°C | 38.2°C | 13.7°C | 133 mm | 67% | 2.1 m/s | 5.5 |
| 2013 | 30.9°C | 25.0°C | 19.2°C | 39.0°C | 12.9°C | 76 mm | 70% | 2.1 m/s | 5.6 |
| 2012 | 34.2°C | 26.8°C | 19.5°C | 40.1°C | 13.3°C | 74 mm | 44% | 2.5 m/s | 5.7 |
| 2011 | 34.0°C | 27.3°C | 20.6°C | 44.4°C | 15.2°C | 119 mm | 64% | 2.1 m/s | 5.8 |
| 2010 | 31.2°C | 25.8°C | 20.4°C | 35.5°C | 12.9°C | 111 mm | 75% | 2.4 m/s | 6.4 |
| 2009 | 27.7°C | 22.5°C | 17.4°C | 33.0°C | 9.5°C | 153 mm | 79% | 2.6 m/s | 5.6 |
| 2008 | 28.4°C | 23.1°C | 17.8°C | 34.4°C | 13.5°C | 38 mm | 78% | 2 m/s | 5.8 |
| 2007 | 32.2°C | 27.2°C | 22.1°C | 36.9°C | 14.5°C | 74 mm | 75% | 2.6 m/s | 6 |
| 2006 | 32.9°C | 26.9°C | 21.0°C | 41.1°C | 14.5°C | 165 mm | 65% | 2.5 m/s | 5.5 |
| 2005 🌧️ | 30.9°C | 25.4°C | 19.9°C | 38.6°C | 15.2°C | 243 mm | 71% | 2.1 m/s | 5.3 |
| 2004 | 27.4°C | 21.9°C | 16.4°C | 33.1°C | 9.6°C | 151 mm | 76% | 2.4 m/s | 5.6 |
| 2003 | 35.8°C | 28.9°C | 22.0°C | 43.2°C | 17.1°C | 168 mm | 47% | 2.2 m/s | 5.6 |
| 2002 | 33.4°C | 26.7°C | 20.0°C | 39.3°C | 13.2°C | 60 mm | 59% | 2.5 m/s | 5.4 |
| 2001 | 32.2°C | 25.6°C | 19.1°C | 39.1°C | 14.2°C | 107 mm | 65% | 2.3 m/s | 6.1 |
| 2000 | 37.7°C | 29.7°C | 21.8°C | 42.7°C | 17.3°C | 38 mm | 51% | 2.8 m/s | 5.7 |
| 1999 | 32.3°C | 25.3°C | 18.3°C | 36.8°C | 13.7°C | 47 mm | 61% | 2.4 m/s | 5.6 |
| 1998 | 31.7°C | 25.7°C | 19.7°C | 37.8°C | 16.8°C | 71 mm | 72% | 2.2 m/s | 5.8 |
| 1997 | 31.2°C | 24.9°C | 18.7°C | 36.5°C | 14.0°C | 102 mm | 66% | 2.3 m/s | 5.4 |
| 1996 | 29.2°C | 23.9°C | 18.7°C | 33.9°C | 15.1°C | 102 mm | 74% | 1.9 m/s | 5.3 |
| 1995 | 30.5°C | 25.5°C | 20.6°C | 33.4°C | 15.7°C | 100 mm | 80% | 2.2 m/s | 5.8 |
| 1994 | 30.2°C | 24.0°C | 17.8°C | 36.8°C | 11.0°C | 128 mm | 69% | 2.4 m/s | 5.6 |
| 1993 | 28.8°C | 24.1°C | 19.5°C | 32.8°C | 12.5°C | 79 mm | 84% | 2.4 m/s | 5.4 |
| 1992 ❄️ | 27.3°C | 21.5°C | 15.7°C | 32.4°C | 10.6°C | 74 mm | 73% | 2.2 m/s | 5.6 |
| 1991 | 34.0°C | 27.0°C | 20.1°C | 40.5°C | 12.3°C | 35 mm | 50% | 2.2 m/s | 5.7 |
| 1990 | 29.7°C | 24.2°C | 18.6°C | 36.8°C | 11.9°C | 94 mm | 76% | 2.3 m/s | 5.8 |
| 1989 | 31.2°C | 25.3°C | 19.4°C | 38.9°C | 11.9°C | 157 mm | 69% | 2.5 m/s | 5.4 |
| 1988 | 34.6°C | 27.6°C | 20.6°C | 39.5°C | 12.1°C | 72 mm | 56% | 2.5 m/s | 5.8 |
| 1987 | 30.4°C | 24.6°C | 18.7°C | 38.5°C | 12.8°C | 135 mm | 71% | 2.8 m/s | 5.1 |
| 1986 | 29.2°C | 22.7°C | 16.3°C | 33.1°C | 7.7°C | 98 mm | 67% | 2.3 m/s | 5.4 |
| 1985 | 27.7°C | 22.2°C | 16.7°C | 33.2°C | 11.3°C | 194 mm | 80% | 2.4 m/s | 4.7 |
| 1984 | 34.1°C | 26.6°C | 19.0°C | 42.1°C | 12.5°C | 24 mm | 56% | 2.5 m/s | 6 |
| 1983 🔥 | 37.9°C | 30.6°C | 23.3°C | 43.0°C | 17.5°C | 21 mm | 49% | 2.5 m/s | — |
| 1982 | 28.9°C | 23.8°C | 18.6°C | 34.3°C | 12.7°C | 227 mm | 81% | 2.5 m/s | — |
| 1981 | 27.9°C | 22.6°C | 17.4°C | 32.5°C | 11.6°C | 96 mm | 79% | 2.2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 31.2°C with lows near 19.3°C (mean 25.3°C), based on 45 years of NASA POWER data.
August averages 108 mm of rainfall in Kansas City, a relatively wet time of year. The wettest on record was 243 mm in 2005.
The hottest August reached 44.4°C in 2011. The coldest dipped to 7.7°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1°C. Daytime highs moved from 31.3°C to 32.5°C and overnight lows from 19°C to 19.9°C over the same span.
August is one of the warmer months of the year in Kansas City and a relatively wet time of year, so plan for around 31.2°C daytime highs and 19.3°C at night.
Not quite — August is the 11th coolest month in Kansas City, averaging 25.3°C.
For August in Kansas City, pack light, breathable clothing and sun protection, with typical highs of 31.2°C and lows of 19.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 69% — moderately humid.
Average wind speed in August is 2.3 m/s. The windiest August on record averaged 2.8 m/s (1987).
The wettest August on record was 2005 with 243 mm. On average, August sees 108 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 Kansas City behaves each August, 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 August specifically, along with year-by-year records and how the month has changed over the decades.
