| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 14.5° | 4.3° | 76mm | 10.2 | 62 |
| February | 16.6° | 5° | 62.8mm | 9.3 | 71 |
| March | 19.2° | 6.3° | 54mm | 9.1 | 79 |
| April | 22° | 7.7° | 28.3mm | 5.5 | 89 |
| May | 25.3° | 10.1° | 11.7mm | 3.2 | 94 |
| June | 29.3° | 12.4° | 2.7mm | 0.9 | 89 |
| July | 32.3° | 14° | 0mm | 0 | 79 |
| August | 31.9° | 13.9° | 0.7mm | 0.3 | 80 |
| September | 30.3° | 12.9° | 3mm | 0.8 | 85 |
| October | 25.6° | 9.9° | 18.2mm | 2.5 | 95 |
| November | 18.8° | 6.3° | 39.7mm | 6.8 | 83 |
| December | 14.6° | 4.2° | 73.3mm | 9.7 | 63 |
January in Livermore averages a daily high of 14.5°C with nights around 4.3°C. Expect roughly 10.2 wet days totalling 76mm. Generally workable, with some weather to plan around.
February in Livermore averages a daily high of 16.6°C with nights around 5°C. Expect roughly 9.3 wet days totalling 62.8mm. Generally workable, with some weather to plan around.
March in Livermore averages a daily high of 19.2°C with nights around 6.3°C. Expect roughly 9.1 wet days totalling 54mm. Comfortable conditions for being outdoors all day.
April in Livermore averages a daily high of 22°C with nights around 7.7°C. Expect roughly 5.5 wet days totalling 28.3mm. Comfortable conditions for being outdoors all day.
May in Livermore averages a daily high of 25.3°C with nights around 10.1°C. Expect roughly 3.2 wet days totalling 11.7mm. Comfortable conditions for being outdoors all day.
June in Livermore averages a daily high of 29.3°C with nights around 12.4°C. Rain is rare — about 0.9 wet days and 2.7mm across the month. Comfortable conditions for being outdoors all day.
July in Livermore averages a daily high of 32.3°C with nights around 14°C. Rain is rare — about 0 wet days and 0mm across the month. Comfortable conditions for being outdoors all day.
August in Livermore averages a daily high of 31.9°C with nights around 13.9°C. Rain is rare — about 0.3 wet days and 0.7mm across the month. Comfortable conditions for being outdoors all day.
September in Livermore averages a daily high of 30.3°C with nights around 12.9°C. Rain is rare — about 0.8 wet days and 3mm across the month. Comfortable conditions for being outdoors all day.
October in Livermore averages a daily high of 25.6°C with nights around 9.9°C. Rain is rare — about 2.5 wet days and 18.2mm across the month. Comfortable conditions for being outdoors all day.
November in Livermore averages a daily high of 18.8°C with nights around 6.3°C. Expect roughly 6.8 wet days totalling 39.7mm. Comfortable conditions for being outdoors all day.
December in Livermore averages a daily high of 14.6°C with nights around 4.2°C. Expect roughly 9.7 wet days totalling 73.3mm. 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. Livermore peaks at 95.
Based on 30 years of records, April–June scores highest for comfort in Livermore, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 32.3°C.
January is the wettest, averaging 76mm of rain across roughly 10.2 wet days.
January is the coolest month, with average daily highs around 14.5°C.