| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 4.2° | -5.7° | 25.5mm | 5.1 | 28 |
| February | 6.8° | -3.9° | 34.1mm | 5.8 | 37 |
| March | 13.2° | 1.9° | 63.1mm | 9.2 | 60 |
| April | 18.8° | 7.3° | 94.4mm | 10.4 | 75 |
| May | 23.7° | 13° | 136.1mm | 12.5 | 75 |
| June | 29° | 18.5° | 126.7mm | 10.4 | 71 |
| July | 31.2° | 20.6° | 104.1mm | 9 | 65 |
| August | 30.7° | 19.8° | 117.3mm | 8.9 | 67 |
| September | 26.6° | 15.2° | 85.9mm | 7.8 | 84 |
| October | 19.7° | 8.4° | 81.3mm | 8.4 | 82 |
| November | 12.5° | 1.9° | 49.4mm | 6.1 | 64 |
| December | 6.3° | -3.5° | 32.7mm | 5.4 | 37 |
January in Lenexa averages a daily high of 4.2°C with nights around -5.7°C. Expect roughly 5.1 wet days totalling 25.5mm. A hard month to visit for comfort alone.
February in Lenexa averages a daily high of 6.8°C with nights around -3.9°C. Expect roughly 5.8 wet days totalling 34.1mm. Demanding conditions — pack for it and plan indoor options.
March in Lenexa averages a daily high of 13.2°C with nights around 1.9°C. Expect roughly 9.2 wet days totalling 63.1mm. Generally workable, with some weather to plan around.
April in Lenexa averages a daily high of 18.8°C with nights around 7.3°C. Expect roughly 10.4 wet days totalling 94.4mm. Comfortable conditions for being outdoors all day.
May in Lenexa averages a daily high of 23.7°C with nights around 13°C. Expect roughly 12.5 wet days totalling 136.1mm. Comfortable conditions for being outdoors all day.
June in Lenexa averages a daily high of 29°C with nights around 18.5°C. Expect roughly 10.4 wet days totalling 126.7mm. Generally workable, with some weather to plan around.
July in Lenexa averages a daily high of 31.2°C with nights around 20.6°C. Expect roughly 9 wet days totalling 104.1mm. Generally workable, with some weather to plan around.
August in Lenexa averages a daily high of 30.7°C with nights around 19.8°C. Expect roughly 8.9 wet days totalling 117.3mm. Generally workable, with some weather to plan around.
September in Lenexa averages a daily high of 26.6°C with nights around 15.2°C. Expect roughly 7.8 wet days totalling 85.9mm. Comfortable conditions for being outdoors all day.
October in Lenexa averages a daily high of 19.7°C with nights around 8.4°C. Expect roughly 8.4 wet days totalling 81.3mm. Comfortable conditions for being outdoors all day.
November in Lenexa averages a daily high of 12.5°C with nights around 1.9°C. Expect roughly 6.1 wet days totalling 49.4mm. Generally workable, with some weather to plan around.
December in Lenexa averages a daily high of 6.3°C with nights around -3.5°C. Expect roughly 5.4 wet days totalling 32.7mm. Demanding conditions — pack for it and plan indoor options.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Lenexa peaks at 84.
Based on 30 years of records, September–October scores highest for comfort in Lenexa, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 31.2°C.
May is the wettest, averaging 136.1mm of rain across roughly 12.5 wet days.
January is the coolest month, with average daily highs around 4.2°C.