| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -0.2° | -7.7° | 51.3mm | 11.2 | 8 |
| February | 2.2° | -6.4° | 52.5mm | 9.3 | 14 |
| March | 8.5° | -1° | 62.7mm | 10.7 | 37 |
| April | 15° | 4° | 94.1mm | 12.3 | 59 |
| May | 21.3° | 9.9° | 115.9mm | 12.8 | 74 |
| June | 26.9° | 15.6° | 101.7mm | 11.5 | 77 |
| July | 29.1° | 18.5° | 101.7mm | 9.7 | 72 |
| August | 28.1° | 18° | 103mm | 9.2 | 77 |
| September | 24.4° | 13.7° | 77.4mm | 8.1 | 84 |
| October | 17.2° | 7.2° | 84.1mm | 10.9 | 69 |
| November | 9.3° | 0.7° | 54.5mm | 9.2 | 45 |
| December | 2.7° | -4.7° | 55.6mm | 10.6 | 14 |
January in Portage Park averages a daily high of -0.2°C with nights around -7.7°C. Expect roughly 11.2 wet days totalling 51.3mm. A hard month to visit for comfort alone.
February in Portage Park averages a daily high of 2.2°C with nights around -6.4°C. Expect roughly 9.3 wet days totalling 52.5mm. A hard month to visit for comfort alone.
March in Portage Park averages a daily high of 8.5°C with nights around -1°C. Expect roughly 10.7 wet days totalling 62.7mm. Demanding conditions — pack for it and plan indoor options.
April in Portage Park averages a daily high of 15°C with nights around 4°C. Expect roughly 12.3 wet days totalling 94.1mm. Generally workable, with some weather to plan around.
May in Portage Park averages a daily high of 21.3°C with nights around 9.9°C. Expect roughly 12.8 wet days totalling 115.9mm. Generally workable, with some weather to plan around.
June in Portage Park averages a daily high of 26.9°C with nights around 15.6°C. Expect roughly 11.5 wet days totalling 101.7mm. Comfortable conditions for being outdoors all day.
July in Portage Park averages a daily high of 29.1°C with nights around 18.5°C. Expect roughly 9.7 wet days totalling 101.7mm. Generally workable, with some weather to plan around.
August in Portage Park averages a daily high of 28.1°C with nights around 18°C. Expect roughly 9.2 wet days totalling 103mm. Comfortable conditions for being outdoors all day.
September in Portage Park averages a daily high of 24.4°C with nights around 13.7°C. Expect roughly 8.1 wet days totalling 77.4mm. Comfortable conditions for being outdoors all day.
October in Portage Park averages a daily high of 17.2°C with nights around 7.2°C. Expect roughly 10.9 wet days totalling 84.1mm. Generally workable, with some weather to plan around.
November in Portage Park averages a daily high of 9.3°C with nights around 0.7°C. Expect roughly 9.2 wet days totalling 54.5mm. Demanding conditions — pack for it and plan indoor options.
December in Portage Park averages a daily high of 2.7°C with nights around -4.7°C. Expect roughly 10.6 wet days totalling 55.6mm. 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. Portage Park peaks at 84.
Based on 30 years of records, August–September scores highest for comfort in Portage Park, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 29.1°C.
May is the wettest, averaging 115.9mm of rain across roughly 12.8 wet days.
January is the coolest month, with average daily highs around -0.2°C.