| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 1.9° | -6.5° | 24.8mm | 8.5 | 15 |
| February | 4.5° | -4.7° | 24mm | 8.5 | 23 |
| March | 10.2° | -1.2° | 39.3mm | 10.6 | 43 |
| April | 15.6° | 2° | 33.5mm | 8.4 | 69 |
| May | 20.9° | 6.5° | 40.3mm | 10 | 80 |
| June | 27.3° | 11.4° | 25.4mm | 5.6 | 88 |
| July | 33.2° | 15.9° | 12.6mm | 3.7 | 68 |
| August | 31.5° | 14.3° | 22.1mm | 5.4 | 71 |
| September | 26.5° | 9.9° | 28.1mm | 3.8 | 92 |
| October | 17.5° | 3.9° | 31mm | 7.1 | 78 |
| November | 9.2° | -1.6° | 25.7mm | 6.7 | 47 |
| December | 2.7° | -5.6° | 32.9mm | 9.7 | 14 |
January in Pocatello averages a daily high of 1.9°C with nights around -6.5°C. Expect roughly 8.5 wet days totalling 24.8mm. A hard month to visit for comfort alone.
February in Pocatello averages a daily high of 4.5°C with nights around -4.7°C. Expect roughly 8.5 wet days totalling 24mm. A hard month to visit for comfort alone.
March in Pocatello averages a daily high of 10.2°C with nights around -1.2°C. Expect roughly 10.6 wet days totalling 39.3mm. Demanding conditions — pack for it and plan indoor options.
April in Pocatello averages a daily high of 15.6°C with nights around 2°C. Expect roughly 8.4 wet days totalling 33.5mm. Generally workable, with some weather to plan around.
May in Pocatello averages a daily high of 20.9°C with nights around 6.5°C. Expect roughly 10 wet days totalling 40.3mm. Comfortable conditions for being outdoors all day.
June in Pocatello averages a daily high of 27.3°C with nights around 11.4°C. Expect roughly 5.6 wet days totalling 25.4mm. Comfortable conditions for being outdoors all day.
July in Pocatello averages a daily high of 33.2°C with nights around 15.9°C. Expect roughly 3.7 wet days totalling 12.6mm. Generally workable, with some weather to plan around.
August in Pocatello averages a daily high of 31.5°C with nights around 14.3°C. Expect roughly 5.4 wet days totalling 22.1mm. Generally workable, with some weather to plan around.
September in Pocatello averages a daily high of 26.5°C with nights around 9.9°C. Expect roughly 3.8 wet days totalling 28.1mm. Comfortable conditions for being outdoors all day.
October in Pocatello averages a daily high of 17.5°C with nights around 3.9°C. Expect roughly 7.1 wet days totalling 31mm. Comfortable conditions for being outdoors all day.
November in Pocatello averages a daily high of 9.2°C with nights around -1.6°C. Expect roughly 6.7 wet days totalling 25.7mm. Demanding conditions — pack for it and plan indoor options.
December in Pocatello averages a daily high of 2.7°C with nights around -5.6°C. Expect roughly 9.7 wet days totalling 32.9mm. 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. Pocatello peaks at 92.
Based on 30 years of records, June scores highest for comfort in Pocatello, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 33.2°C.
May is the wettest, averaging 40.3mm of rain across roughly 10 wet days.
January is the coolest month, with average daily highs around 1.9°C.