Climate averages 1991–2020
Lawrence (Kansas), United States weather
in September.
A warm, wet month: the 4th warmest and the joint 7th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Lawrence (Kansas), United States: daytime highs average 25.8°C and nights cool to about 16.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 90 mm of rain on roughly 8 days, which makes September a wet month (the joint 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 29 min on an average September day.
The nearest other city in this atlas is Olathe (37 km away). In September its highs average 25.4°C, about as warm as Lawrence (Kansas), United States, with 93 mm of rain.
Among the 498 cities listed in the United States, Lawrence (Kansas), United States ranks joint 290th of 498 for the warmest September highs and joint 340th of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Lawrence (Kansas), United States is 1.1°C cooler than that mean.
From September to October, average highs fall by 6.8°C to 19.0°C, and monthly rainfall falls from 90 mm to 82 mm.
The annual picture
September 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
Lawrence (Kansas), United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.6°C-5.3°C | -5.3°C | 32 | 5.5 | 9.810 h |
| February | 6.4°C-3.3°C | -3.3°C | 44 | 5.9 | 10.711 h |
| March | 12.5°C2.1°C | 2.1°C | 74 | 8.9 | 11.912 h |
| April | 18.2°C8.0°C | 8.0°C | 117 | 11.0 | 13.213 h |
| May | 23.5°C14.0°C | 14.0°C | 151 | 12.4 | 14.314 h |
| June | 28.7°C19.5°C | 19.5°C | 128 | 11.5 | 14.915 h |
| July | 31.1°C22.1°C | 22.1°C | 90 | 9.5 | 14.615 h |
| August | 30.3°C21.2°C | 21.2°C | 100 | 8.7 | 13.714 h |
| September, selected | 25.8°C16.5°C | 16.5°C | 90 | 8.0 | 12.512 h |
| October | 19.0°C9.9°C | 9.9°C | 82 | 8.0 | 11.211 h |
| November | 11.5°C3.0°C | 3.0°C | 55 | 5.9 | 10.110 h |
| December | 5.5°C-2.8°C | -2.8°C | 44 | 5.2 | 9.59 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
September in nearby cities
- Olathe in SeptemberUnited States · 37 kmHigh 25.4°C · Low 16.4°C · 93 mm rain
- Topeka in SeptemberUnited States · 39 kmHigh 25.9°C · Low 16.3°C · 87 mm rain
- Overland Park in SeptemberUnited States · 49 kmHigh 25.3°C · Low 16.3°C · 93 mm rain
- Kansas City in SeptemberUnited States · 58 kmHigh 25.6°C · Low 16.2°C · 93 mm rain
- Independence in SeptemberUnited States · 72 kmHigh 25.2°C · Low 16.1°C · 93 mm rain
- Lee's Summit in SeptemberUnited States · 74 kmHigh 25.3°C · Low 16.2°C · 93 mm rain
- Saint Joseph in SeptemberUnited States · 95 kmHigh 25.2°C · Low 15.7°C · 85 mm rain
- Wichita in SeptemberUnited States · 232 kmHigh 27.2°C · Low 17.3°C · 80 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 Lawrence) is explained once on the Lawrence (Kansas), United States year overview and on the Sources, method and limits page.