| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -4.7° | -16.9° | 15.2mm | 8.9 | 12 |
| February | -2.5° | -15.9° | 10.9mm | 7.3 | 15 |
| March | 1.9° | -10.9° | 15.6mm | 8 | 14 |
| April | 10.1° | -3.4° | 17.7mm | 7.3 | 46 |
| May | 17.1° | 2.7° | 43.8mm | 8.8 | 73 |
| June | 20.4° | 7.5° | 80.1mm | 12.9 | 74 |
| July | 23.1° | 9.6° | 86.4mm | 12.2 | 76 |
| August | 22.5° | 8° | 53mm | 9.6 | 81 |
| September | 18° | 3.1° | 27.7mm | 8.1 | 77 |
| October | 10.8° | -2.9° | 15.3mm | 6.2 | 51 |
| November | 1.4° | -10.1° | 15.3mm | 6.8 | 16 |
| December | -4.5° | -16.2° | 12.9mm | 8.5 | 13 |
January in Red Deer averages a daily high of -4.7°C with nights around -16.9°C. Expect roughly 8.9 wet days totalling 15.2mm. A hard month to visit for comfort alone.
February in Red Deer averages a daily high of -2.5°C with nights around -15.9°C. Expect roughly 7.3 wet days totalling 10.9mm. A hard month to visit for comfort alone.
March in Red Deer averages a daily high of 1.9°C with nights around -10.9°C. Expect roughly 8 wet days totalling 15.6mm. A hard month to visit for comfort alone.
April in Red Deer averages a daily high of 10.1°C with nights around -3.4°C. Expect roughly 7.3 wet days totalling 17.7mm. Demanding conditions — pack for it and plan indoor options.
May in Red Deer averages a daily high of 17.1°C with nights around 2.7°C. Expect roughly 8.8 wet days totalling 43.8mm. Generally workable, with some weather to plan around.
June in Red Deer averages a daily high of 20.4°C with nights around 7.5°C. Expect roughly 12.9 wet days totalling 80.1mm. Generally workable, with some weather to plan around.
July in Red Deer averages a daily high of 23.1°C with nights around 9.6°C. Expect roughly 12.2 wet days totalling 86.4mm. Comfortable conditions for being outdoors all day.
August in Red Deer averages a daily high of 22.5°C with nights around 8°C. Expect roughly 9.6 wet days totalling 53mm. Comfortable conditions for being outdoors all day.
September in Red Deer averages a daily high of 18°C with nights around 3.1°C. Expect roughly 8.1 wet days totalling 27.7mm. Comfortable conditions for being outdoors all day.
October in Red Deer averages a daily high of 10.8°C with nights around -2.9°C. Expect roughly 6.2 wet days totalling 15.3mm. Demanding conditions — pack for it and plan indoor options.
November in Red Deer averages a daily high of 1.4°C with nights around -10.1°C. Expect roughly 6.8 wet days totalling 15.3mm. A hard month to visit for comfort alone.
December in Red Deer averages a daily high of -4.5°C with nights around -16.2°C. Expect roughly 8.5 wet days totalling 12.9mm. 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. Red Deer peaks at 81.
Based on 30 years of records, May–September scores highest for comfort in Red Deer, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 23.1°C.
July is the wettest, averaging 86.4mm of rain across roughly 12.2 wet days.
January is the coolest month, with average daily highs around -4.7°C.