Kansas City weather in August: Kansas City, Missouri: normal highs, lows, rain and records for August
Kansas City in August has a normal high of 87°F and a normal low of 66°F, a daily mean of 77°F, falling from 89°F on the 1st to 84°F by the 31st. Measurable precipitation falls on 8 days in a normal August, 4.24 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 19°C, 108 mm of precipitation in August.
- NOAA stationKansas City International Airport
- Station IDUSW00003947
- Location39.30°N 94.73°W
- Elevation1,005 ft (306 m)
- From the center15 miles
- Population516,032
- Jan 38° 20°
- Feb 44° 24°
- Mar 55° 34°
- Apr 66° 44°
- May 75° 54°
- Jun 84° 64°
- Jul 88° 68°
- Aug 87° 66°
- Sep 79° 58°
- Oct 67° 46°
- Nov 54° 34°
- Dec 42° 24°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Kansas City in August?
The normal high is 87°F and the normal low 66°F, for a daily mean of 76.7°F. August is 1.5°F cooler than July and 8.3°F warmer than September. August is the 2nd warmest month of the year in Kansas City and the 4th wettest. Across the month the normal high falls 5°F, from 89°F on August 1 to 84°F on August 31. From one year to the next August's mean temperature typically moves about 2.8°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 74°F and 80°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 28%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 89°F | 68°F | 28% | 18% |
| August 8 | 88°F | 68°F | 27% | 17% |
| August 15 | 88°F | 67°F | 28% | 18% |
| August 22 | 86°F | 66°F | 28% | 19% |
| August 31 | 84°F | 63°F | 28% | 20% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 89°F | 68°F | 28% | 18% | 14 h 10 min |
| August 2 | 89°F | 68°F | 28% | 17% | 14 h 10 min |
| August 3 | 89°F | 68°F | 28% | 17% | 14 h 10 min |
| August 4 | 89°F | 68°F | 28% | 17% | 14 h 10 min |
| August 5 | 89°F | 68°F | 28% | 17% | 14 h 10 min |
| August 6 | 89°F | 68°F | 27% | 17% | 14 h |
| August 7 | 89°F | 68°F | 27% | 17% | 14 h |
| August 8 | 88°F | 68°F | 27% | 17% | 14 h |
| August 9 | 88°F | 68°F | 27% | 18% | 14 h |
| August 10 | 88°F | 68°F | 27% | 18% | 14 h |
| August 11 | 88°F | 67°F | 27% | 18% | 13 h 50 min |
| August 12 | 88°F | 67°F | 27% | 18% | 13 h 50 min |
| August 13 | 88°F | 67°F | 27% | 18% | 13 h 50 min |
| August 14 | 88°F | 67°F | 27% | 18% | 13 h 50 min |
| August 15 | 88°F | 67°F | 28% | 18% | 13 h 50 min |
| August 16 | 87°F | 67°F | 28% | 18% | 13 h 40 min |
| August 17 | 87°F | 67°F | 28% | 18% | 13 h 40 min |
| August 18 | 87°F | 66°F | 28% | 18% | 13 h 40 min |
| August 19 | 87°F | 66°F | 28% | 18% | 13 h 40 min |
| August 20 | 87°F | 66°F | 28% | 18% | 13 h 30 min |
| August 21 | 87°F | 66°F | 28% | 18% | 13 h 30 min |
| August 22 | 86°F | 66°F | 28% | 19% | 13 h 30 min |
| August 23 | 86°F | 65°F | 28% | 19% | 13 h 30 min |
| August 24 | 86°F | 65°F | 28% | 19% | 13 h 20 min |
| August 25 | 86°F | 65°F | 28% | 19% | 13 h 20 min |
| August 26 | 86°F | 65°F | 28% | 19% | 13 h 20 min |
| August 27 | 85°F | 64°F | 28% | 19% | 13 h 20 min |
| August 28 | 85°F | 64°F | 28% | 19% | 13 h 20 min |
| August 29 | 85°F | 64°F | 28% | 19% | 13 h 10 min |
| August 30 | 85°F | 63°F | 28% | 19% | 13 h 10 min |
| August 31 | 84°F | 63°F | 28% | 20% | 13 h 10 min |
- Normal high
- 87°FAugust average
- Normal low
- 66°FAugust average
- Precipitation
- 4.24 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 12
- Daylight
- 14 h 10 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 27
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003947; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Kansas City in August?
On a given August day the chance of 0.01 inch or more is 28% on average, highest around August 30 (28%). In all, 4.24 in falls on 8 days of a normal August, 1 of them with an inch or more.
In a normal August in Kansas City, 12 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003947.
How humid and windy is Kansas City in August?
At 3 p.m. the normal temperature is 84°F with 53% relative humidity and a dew point of 65°F; at 6 a.m. it is 67°F with 87% humidity. The wind averages 8.5 mph, most often from the south-southeast in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 67°F | 63°F | 87% | 7.4 mph | 42% |
| 9 a.m. | 75°F | 65°F | 72% | 9.3 mph | 40% |
| noon | 81°F | 65°F | 58% | 9.6 mph | 37% |
| 3 p.m. | 84°F | 65°F | 53% | 10.0 mph | 32% |
| 6 p.m. | 80°F | 65°F | 60% | 8.4 mph | 49% |
| 9 p.m. | 73°F | 64°F | 74% | 8.0 mph | 54% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00003947. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for August in Kansas City?
The warmest August temperature on Kansas City's official record (since 1888) is 113°F, on August 14, 1936; the coldest is 43°F, on August 28, 1986. The wettest August brought 10.19 in (2017).
The August mean against the 1991-2020 normal of 76.7°F: 2021 79.8°F (+3.1), 2022 79.0°F (+2.3), 2023 77.7°F (+1.0), 2024 75.8°F (−0.9), 2025 75.2°F (−1.5), 2026 78.2°F (+1.5). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 79.8°F | +3.1°F | 5.24 in |
| 2022 | 79.0°F | +2.3°F | 2.41 in |
| 2023 | 77.7°F | +1.0°F | 4.81 in |
| 2024 | 75.8°F | −0.9°F | 1.60 in |
| 2025 | 75.2°F | −1.5°F | 0.84 in |
| 2026 | 78.2°F | +1.5°F | 6.28 in |
Source: records: ACIS, NWS threaded record MCIthr; recent months: ACIS, station USW00003947. Records and recent months use complete months only.
How does August in Kansas City compare across Missouri?
Across the 134 places PlainClimate covers in Missouri, August normal highs run from 83°F in Canton to 91°F in Malden; Kansas City's is 87°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.