| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 13.6° | 3.4° | 84.1mm | 10.4 | 59 |
| February | 16.4° | 4.4° | 75.4mm | 8.6 | 71 |
| March | 19.2° | 6.4° | 70.3mm | 9.2 | 79 |
| April | 22.7° | 7.9° | 33.9mm | 6.1 | 88 |
| May | 28.1° | 11.5° | 19.4mm | 3.5 | 89 |
| June | 33.1° | 14.8° | 5mm | 1.1 | 73 |
| July | 36.1° | 16.5° | 0mm | 0.1 | 63 |
| August | 34.9° | 15.4° | 1.5mm | 0.3 | 68 |
| September | 32.2° | 13.5° | 3.8mm | 0.9 | 77 |
| October | 26.3° | 9.6° | 23.5mm | 3.5 | 93 |
| November | 18.1° | 5.2° | 51.6mm | 6.8 | 80 |
| December | 13.4° | 3.4° | 102.4mm | 11.4 | 56 |
January in Yuba City averages a daily high of 13.6°C with nights around 3.4°C. Expect roughly 10.4 wet days totalling 84.1mm. Generally workable, with some weather to plan around.
February in Yuba City averages a daily high of 16.4°C with nights around 4.4°C. Expect roughly 8.6 wet days totalling 75.4mm. Generally workable, with some weather to plan around.
March in Yuba City averages a daily high of 19.2°C with nights around 6.4°C. Expect roughly 9.2 wet days totalling 70.3mm. Comfortable conditions for being outdoors all day.
April in Yuba City averages a daily high of 22.7°C with nights around 7.9°C. Expect roughly 6.1 wet days totalling 33.9mm. Comfortable conditions for being outdoors all day.
May in Yuba City averages a daily high of 28.1°C with nights around 11.5°C. Expect roughly 3.5 wet days totalling 19.4mm. Comfortable conditions for being outdoors all day.
June in Yuba City averages a daily high of 33.1°C with nights around 14.8°C. Rain is rare — about 1.1 wet days and 5mm across the month. Generally workable, with some weather to plan around.
July in Yuba City averages a daily high of 36.1°C with nights around 16.5°C. Rain is rare — about 0.1 wet days and 0mm across the month. Generally workable, with some weather to plan around.
August in Yuba City averages a daily high of 34.9°C with nights around 15.4°C. Rain is rare — about 0.3 wet days and 1.5mm across the month. Generally workable, with some weather to plan around.
September in Yuba City averages a daily high of 32.2°C with nights around 13.5°C. Rain is rare — about 0.9 wet days and 3.8mm across the month. Comfortable conditions for being outdoors all day.
October in Yuba City averages a daily high of 26.3°C with nights around 9.6°C. Expect roughly 3.5 wet days totalling 23.5mm. Comfortable conditions for being outdoors all day.
November in Yuba City averages a daily high of 18.1°C with nights around 5.2°C. Expect roughly 6.8 wet days totalling 51.6mm. Comfortable conditions for being outdoors all day.
December in Yuba City averages a daily high of 13.4°C with nights around 3.4°C. Expect roughly 11.4 wet days totalling 102.4mm. Generally workable, with some weather to plan around.
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. Yuba City peaks at 93.
Based on 30 years of records, April–May scores highest for comfort in Yuba City, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 36.1°C.
December is the wettest, averaging 102.4mm of rain across roughly 11.4 wet days.
December is the coolest month, with average daily highs around 13.4°C.