Climate averages 1991–2020
Saint Joseph weather
in August.
A hot, wet month: the 2nd warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Saint Joseph: daytime highs average 29.4°C and nights cool to about 20.4°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 91 mm of rain on roughly 9 days, which makes August a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 44 min on an average August day.
The nearest other city in this atlas is Kansas City (78 km away). In August its highs average 30.2°C, 0.7°C warmer than Saint Joseph, with 94 mm of rain.
Among the 498 cities listed in the United States, Saint Joseph ranks joint 270th of 498 for the warmest August highs and joint 326th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Saint Joseph is 0.5°C cooler than that mean.
From August to September, average highs fall by 4.3°C to 25.2°C, and monthly rainfall falls from 91 mm to 85 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Saint Joseph climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.1°C-6.8°C | -6.8°C | 30 | 5.4 | 9.710 h |
| February | 4.9°C-4.9°C | -4.9°C | 44 | 6.2 | 10.711 h |
| March | 11.3°C0.9°C | 0.9°C | 76 | 9.0 | 11.912 h |
| April | 17.3°C7.0°C | 7.0°C | 115 | 11.1 | 13.213 h |
| May | 22.8°C13.2°C | 13.2°C | 143 | 12.5 | 14.314 h |
| June | 28.1°C18.8°C | 18.8°C | 114 | 11.1 | 14.915 h |
| July | 30.3°C21.3°C | 21.3°C | 112 | 9.1 | 14.715 h |
| August, selected | 29.4°C20.4°C | 20.4°C | 91 | 9.0 | 13.714 h |
| September | 25.2°C15.7°C | 15.7°C | 85 | 8.2 | 12.512 h |
| October | 18.3°C9.1°C | 9.1°C | 81 | 7.9 | 11.211 h |
| November | 10.7°C2.1°C | 2.1°C | 54 | 6.4 | 10.010 h |
| December | 4.4°C-4.0°C | -4.0°C | 45 | 5.4 | 9.49 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Kansas City in AugustUnited States · 78 kmHigh 30.2°C · Low 20.8°C · 94 mm rain
- Independence in AugustUnited States · 84 kmHigh 29.6°C · Low 20.7°C · 94 mm rain
- Overland Park in AugustUnited States · 89 kmHigh 29.9°C · Low 20.9°C · 93 mm rain
- Lawrence (Kansas), United States in AugustUnited States · 95 kmHigh 30.3°C · Low 21.2°C · 100 mm rain
- Olathe in AugustUnited States · 99 kmHigh 30.0°C · Low 21.0°C · 93 mm rain
- Lee's Summit in AugustUnited States · 103 kmHigh 29.8°C · Low 20.8°C · 94 mm rain
- Topeka in AugustUnited States · 107 kmHigh 30.4°C · Low 20.9°C · 102 mm rain
- Omaha in AugustUnited States · 190 kmHigh 28.6°C · Low 19.3°C · 90 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Saint Joseph) is explained once on the Saint Joseph year overview and on the Sources, method and limits page.