| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 0.5° | -8.2° | 76.2mm | 13.5 | 3 |
| February | 2.8° | -7.1° | 66.8mm | 10.7 | 10 |
| March | 9.5° | -2° | 82mm | 12.2 | 36 |
| April | 16.8° | 3.5° | 106.9mm | 12.6 | 65 |
| May | 22.6° | 10° | 122.1mm | 13.4 | 73 |
| June | 27.3° | 15.3° | 132.8mm | 12.1 | 75 |
| July | 28.7° | 16.8° | 115mm | 10.8 | 72 |
| August | 28.1° | 15.8° | 96.5mm | 9.5 | 77 |
| September | 25.3° | 11.9° | 88.8mm | 8.3 | 83 |
| October | 18.2° | 5.5° | 78.6mm | 10.4 | 73 |
| November | 10.2° | -0.3° | 73.9mm | 10.3 | 45 |
| December | 3.1° | -5.1° | 75.1mm | 12.9 | 9 |
January in Kokomo averages a daily high of 0.5°C with nights around -8.2°C. Expect roughly 13.5 wet days totalling 76.2mm. A hard month to visit for comfort alone.
February in Kokomo averages a daily high of 2.8°C with nights around -7.1°C. Expect roughly 10.7 wet days totalling 66.8mm. A hard month to visit for comfort alone.
March in Kokomo averages a daily high of 9.5°C with nights around -2°C. Expect roughly 12.2 wet days totalling 82mm. Demanding conditions — pack for it and plan indoor options.
April in Kokomo averages a daily high of 16.8°C with nights around 3.5°C. Expect roughly 12.6 wet days totalling 106.9mm. Generally workable, with some weather to plan around.
May in Kokomo averages a daily high of 22.6°C with nights around 10°C. Expect roughly 13.4 wet days totalling 122.1mm. Generally workable, with some weather to plan around.
June in Kokomo averages a daily high of 27.3°C with nights around 15.3°C. Expect roughly 12.1 wet days totalling 132.8mm. Comfortable conditions for being outdoors all day.
July in Kokomo averages a daily high of 28.7°C with nights around 16.8°C. Expect roughly 10.8 wet days totalling 115mm. Generally workable, with some weather to plan around.
August in Kokomo averages a daily high of 28.1°C with nights around 15.8°C. Expect roughly 9.5 wet days totalling 96.5mm. Comfortable conditions for being outdoors all day.
September in Kokomo averages a daily high of 25.3°C with nights around 11.9°C. Expect roughly 8.3 wet days totalling 88.8mm. Comfortable conditions for being outdoors all day.
October in Kokomo averages a daily high of 18.2°C with nights around 5.5°C. Expect roughly 10.4 wet days totalling 78.6mm. Generally workable, with some weather to plan around.
November in Kokomo averages a daily high of 10.2°C with nights around -0.3°C. Expect roughly 10.3 wet days totalling 73.9mm. Demanding conditions — pack for it and plan indoor options.
December in Kokomo averages a daily high of 3.1°C with nights around -5.1°C. Expect roughly 12.9 wet days totalling 75.1mm. A hard month to visit for comfort alone.
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. Kokomo peaks at 83.
Based on 30 years of records, August–September scores highest for comfort in Kokomo, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.7°C.
June is the wettest, averaging 132.8mm of rain across roughly 12.1 wet days.
January is the coolest month, with average daily highs around 0.5°C.