| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 5.5° | -1.3° | 29.2mm | 11.3 | 26 |
| February | 9° | -0.7° | 19.8mm | 7.9 | 45 |
| March | 14.6° | 2.4° | 16.6mm | 7.6 | 68 |
| April | 18.9° | 5.6° | 14.9mm | 6.7 | 83 |
| May | 24° | 10.2° | 19.9mm | 6.3 | 87 |
| June | 28.1° | 14° | 15mm | 4.4 | 87 |
| July | 33.5° | 17.4° | 3.3mm | 1.7 | 71 |
| August | 32.6° | 16.7° | 3.1mm | 1.9 | 74 |
| September | 27° | 12.3° | 7mm | 2.8 | 94 |
| October | 18.8° | 6.5° | 17.7mm | 6.3 | 84 |
| November | 10.6° | 1.9° | 22.5mm | 9 | 52 |
| December | 5.2° | -1.2° | 31mm | 11.2 | 25 |
January in Pasco averages a daily high of 5.5°C with nights around -1.3°C. Expect roughly 11.3 wet days totalling 29.2mm. A hard month to visit for comfort alone.
February in Pasco averages a daily high of 9°C with nights around -0.7°C. Expect roughly 7.9 wet days totalling 19.8mm. Demanding conditions — pack for it and plan indoor options.
March in Pasco averages a daily high of 14.6°C with nights around 2.4°C. Expect roughly 7.6 wet days totalling 16.6mm. Generally workable, with some weather to plan around.
April in Pasco averages a daily high of 18.9°C with nights around 5.6°C. Expect roughly 6.7 wet days totalling 14.9mm. Comfortable conditions for being outdoors all day.
May in Pasco averages a daily high of 24°C with nights around 10.2°C. Expect roughly 6.3 wet days totalling 19.9mm. Comfortable conditions for being outdoors all day.
June in Pasco averages a daily high of 28.1°C with nights around 14°C. Expect roughly 4.4 wet days totalling 15mm. Comfortable conditions for being outdoors all day.
July in Pasco averages a daily high of 33.5°C with nights around 17.4°C. Rain is rare — about 1.7 wet days and 3.3mm across the month. Generally workable, with some weather to plan around.
August in Pasco averages a daily high of 32.6°C with nights around 16.7°C. Rain is rare — about 1.9 wet days and 3.1mm across the month. Generally workable, with some weather to plan around.
September in Pasco averages a daily high of 27°C with nights around 12.3°C. Rain is rare — about 2.8 wet days and 7mm across the month. Comfortable conditions for being outdoors all day.
October in Pasco averages a daily high of 18.8°C with nights around 6.5°C. Expect roughly 6.3 wet days totalling 17.7mm. Comfortable conditions for being outdoors all day.
November in Pasco averages a daily high of 10.6°C with nights around 1.9°C. Expect roughly 9 wet days totalling 22.5mm. Demanding conditions — pack for it and plan indoor options.
December in Pasco averages a daily high of 5.2°C with nights around -1.2°C. Expect roughly 11.2 wet days totalling 31mm. 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. Pasco peaks at 94.
Based on 30 years of records, May–June scores highest for comfort in Pasco, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 33.5°C.
December is the wettest, averaging 31mm of rain across roughly 11.2 wet days.
December is the coolest month, with average daily highs around 5.2°C.