| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 0.8° | -7.8° | 61.6mm | 11.7 | 7 |
| February | 2.4° | -7.1° | 61.3mm | 8.9 | 14 |
| March | 7.8° | -3.4° | 66.5mm | 9.1 | 35 |
| April | 15.3° | 2.7° | 81.9mm | 11.8 | 61 |
| May | 21.8° | 8.8° | 94mm | 12.1 | 76 |
| June | 26.9° | 14.4° | 85mm | 10.1 | 80 |
| July | 29.2° | 16.7° | 96.1mm | 10.4 | 70 |
| August | 28.2° | 16.2° | 88.1mm | 9.8 | 76 |
| September | 25° | 12.3° | 79mm | 8.7 | 83 |
| October | 17.6° | 5.6° | 75.5mm | 11.2 | 70 |
| November | 9.8° | 0.2° | 64.9mm | 10.1 | 44 |
| December | 3.5° | -4.3° | 64.9mm | 11.6 | 15 |
January in Dearborn Heights averages a daily high of 0.8°C with nights around -7.8°C. Expect roughly 11.7 wet days totalling 61.6mm. A hard month to visit for comfort alone.
February in Dearborn Heights averages a daily high of 2.4°C with nights around -7.1°C. Expect roughly 8.9 wet days totalling 61.3mm. A hard month to visit for comfort alone.
March in Dearborn Heights averages a daily high of 7.8°C with nights around -3.4°C. Expect roughly 9.1 wet days totalling 66.5mm. Demanding conditions — pack for it and plan indoor options.
April in Dearborn Heights averages a daily high of 15.3°C with nights around 2.7°C. Expect roughly 11.8 wet days totalling 81.9mm. Generally workable, with some weather to plan around.
May in Dearborn Heights averages a daily high of 21.8°C with nights around 8.8°C. Expect roughly 12.1 wet days totalling 94mm. Comfortable conditions for being outdoors all day.
June in Dearborn Heights averages a daily high of 26.9°C with nights around 14.4°C. Expect roughly 10.1 wet days totalling 85mm. Comfortable conditions for being outdoors all day.
July in Dearborn Heights averages a daily high of 29.2°C with nights around 16.7°C. Expect roughly 10.4 wet days totalling 96.1mm. Generally workable, with some weather to plan around.
August in Dearborn Heights averages a daily high of 28.2°C with nights around 16.2°C. Expect roughly 9.8 wet days totalling 88.1mm. Comfortable conditions for being outdoors all day.
September in Dearborn Heights averages a daily high of 25°C with nights around 12.3°C. Expect roughly 8.7 wet days totalling 79mm. Comfortable conditions for being outdoors all day.
October in Dearborn Heights averages a daily high of 17.6°C with nights around 5.6°C. Expect roughly 11.2 wet days totalling 75.5mm. Generally workable, with some weather to plan around.
November in Dearborn Heights averages a daily high of 9.8°C with nights around 0.2°C. Expect roughly 10.1 wet days totalling 64.9mm. Demanding conditions — pack for it and plan indoor options.
December in Dearborn Heights averages a daily high of 3.5°C with nights around -4.3°C. Expect roughly 11.6 wet days totalling 64.9mm. 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. Dearborn Heights peaks at 83.
Based on 30 years of records, May–June scores highest for comfort in Dearborn Heights, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 29.2°C.
July is the wettest, averaging 96.1mm of rain across roughly 10.4 wet days.
January is the coolest month, with average daily highs around 0.8°C.