| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -4° | -12.3° | 8.9mm | 4.4 | 21 |
| February | -1.6° | -10.8° | 11.1mm | 4.4 | 21 |
| March | 5.7° | -3.8° | 39.6mm | 7.8 | 30 |
| April | 14° | 3.1° | 64.4mm | 10.5 | 60 |
| May | 20.9° | 9.6° | 99.9mm | 12 | 76 |
| June | 26.3° | 15.4° | 112.7mm | 12 | 76 |
| July | 28.7° | 18° | 87.2mm | 9.9 | 73 |
| August | 27.3° | 16.7° | 108.9mm | 9.9 | 79 |
| September | 23.4° | 12.3° | 71.4mm | 9.2 | 82 |
| October | 15.1° | 4.9° | 58.2mm | 8.7 | 67 |
| November | 6.4° | -2.2° | 27.5mm | 6.1 | 38 |
| December | -1.4° | -9.1° | 18.2mm | 5.4 | 19 |
January in Saint Paul averages a daily high of -4°C with nights around -12.3°C. Expect roughly 4.4 wet days totalling 8.9mm. A hard month to visit for comfort alone.
February in Saint Paul averages a daily high of -1.6°C with nights around -10.8°C. Expect roughly 4.4 wet days totalling 11.1mm. A hard month to visit for comfort alone.
March in Saint Paul averages a daily high of 5.7°C with nights around -3.8°C. Expect roughly 7.8 wet days totalling 39.6mm. A hard month to visit for comfort alone.
April in Saint Paul averages a daily high of 14°C with nights around 3.1°C. Expect roughly 10.5 wet days totalling 64.4mm. Generally workable, with some weather to plan around.
May in Saint Paul averages a daily high of 20.9°C with nights around 9.6°C. Expect roughly 12 wet days totalling 99.9mm. Comfortable conditions for being outdoors all day.
June in Saint Paul averages a daily high of 26.3°C with nights around 15.4°C. Expect roughly 12 wet days totalling 112.7mm. Comfortable conditions for being outdoors all day.
July in Saint Paul averages a daily high of 28.7°C with nights around 18°C. Expect roughly 9.9 wet days totalling 87.2mm. Generally workable, with some weather to plan around.
August in Saint Paul averages a daily high of 27.3°C with nights around 16.7°C. Expect roughly 9.9 wet days totalling 108.9mm. Comfortable conditions for being outdoors all day.
September in Saint Paul averages a daily high of 23.4°C with nights around 12.3°C. Expect roughly 9.2 wet days totalling 71.4mm. Comfortable conditions for being outdoors all day.
October in Saint Paul averages a daily high of 15.1°C with nights around 4.9°C. Expect roughly 8.7 wet days totalling 58.2mm. Generally workable, with some weather to plan around.
November in Saint Paul averages a daily high of 6.4°C with nights around -2.2°C. Expect roughly 6.1 wet days totalling 27.5mm. Demanding conditions — pack for it and plan indoor options.
December in Saint Paul averages a daily high of -1.4°C with nights around -9.1°C. Expect roughly 5.4 wet days totalling 18.2mm. 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. Saint Paul peaks at 82.
Based on 30 years of records, May–June scores highest for comfort in Saint Paul, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 28.7°C.
June is the wettest, averaging 112.7mm of rain across roughly 12 wet days.
January is the coolest month, with average daily highs around -4°C.