| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -10.6° | -21.1° | 17.5mm | 9.3 | 11 |
| February | -6.8° | -19.8° | 13.5mm | 8.2 | 14 |
| March | 0.3° | -13.5° | 16.2mm | 7.2 | 16 |
| April | 9.5° | -3.9° | 12.3mm | 5.6 | 46 |
| May | 17.4° | 2.8° | 28.5mm | 7.7 | 76 |
| June | 22.1° | 8.4° | 70.6mm | 12.1 | 76 |
| July | 24.3° | 10.9° | 73.1mm | 12.4 | 75 |
| August | 22.7° | 9.1° | 57.8mm | 10.2 | 80 |
| September | 16.7° | 4° | 38.3mm | 9 | 71 |
| October | 8.1° | -1.8° | 23.8mm | 8.2 | 40 |
| November | -2.5° | -11.4° | 17.9mm | 9.3 | 11 |
| December | -9.7° | -19.4° | 17mm | 8.7 | 13 |
January in Fort McMurray averages a daily high of -10.6°C with nights around -21.1°C. Expect roughly 9.3 wet days totalling 17.5mm. A hard month to visit for comfort alone.
February in Fort McMurray averages a daily high of -6.8°C with nights around -19.8°C. Expect roughly 8.2 wet days totalling 13.5mm. A hard month to visit for comfort alone.
March in Fort McMurray averages a daily high of 0.3°C with nights around -13.5°C. Expect roughly 7.2 wet days totalling 16.2mm. A hard month to visit for comfort alone.
April in Fort McMurray averages a daily high of 9.5°C with nights around -3.9°C. Expect roughly 5.6 wet days totalling 12.3mm. Demanding conditions — pack for it and plan indoor options.
May in Fort McMurray averages a daily high of 17.4°C with nights around 2.8°C. Expect roughly 7.7 wet days totalling 28.5mm. Comfortable conditions for being outdoors all day.
June in Fort McMurray averages a daily high of 22.1°C with nights around 8.4°C. Expect roughly 12.1 wet days totalling 70.6mm. Comfortable conditions for being outdoors all day.
July in Fort McMurray averages a daily high of 24.3°C with nights around 10.9°C. Expect roughly 12.4 wet days totalling 73.1mm. Comfortable conditions for being outdoors all day.
August in Fort McMurray averages a daily high of 22.7°C with nights around 9.1°C. Expect roughly 10.2 wet days totalling 57.8mm. Comfortable conditions for being outdoors all day.
September in Fort McMurray averages a daily high of 16.7°C with nights around 4°C. Expect roughly 9 wet days totalling 38.3mm. Generally workable, with some weather to plan around.
October in Fort McMurray averages a daily high of 8.1°C with nights around -1.8°C. Expect roughly 8.2 wet days totalling 23.8mm. Demanding conditions — pack for it and plan indoor options.
November in Fort McMurray averages a daily high of -2.5°C with nights around -11.4°C. Expect roughly 9.3 wet days totalling 17.9mm. A hard month to visit for comfort alone.
December in Fort McMurray averages a daily high of -9.7°C with nights around -19.4°C. Expect roughly 8.7 wet days totalling 17mm. 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. Fort McMurray peaks at 80.
Based on 30 years of records, May–August scores highest for comfort in Fort McMurray, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 24.3°C.
July is the wettest, averaging 73.1mm of rain across roughly 12.4 wet days.
January is the coolest month, with average daily highs around -10.6°C.