| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 15.9° | 2.1° | 62.9mm | 5.6 | 76 |
| February | 17.2° | 4° | 62.8mm | 6.5 | 78 |
| March | 21° | 8.5° | 85.9mm | 7.6 | 85 |
| April | 25.1° | 12.7° | 82.9mm | 6.8 | 86 |
| May | 29° | 17.9° | 121.4mm | 8.5 | 75 |
| June | 33.1° | 22° | 89.7mm | 5.5 | 65 |
| July | 35.2° | 23.9° | 44.5mm | 4.4 | 58 |
| August | 36.2° | 24.1° | 52.2mm | 4.5 | 54 |
| September | 32.7° | 20° | 76.9mm | 5.4 | 66 |
| October | 27.4° | 13.8° | 108.8mm | 6.6 | 85 |
| November | 20.9° | 8.1° | 73.4mm | 6.6 | 87 |
| December | 15.9° | 3.1° | 67.9mm | 6.5 | 74 |
January in Waco averages a daily high of 15.9°C with nights around 2.1°C. Expect roughly 5.6 wet days totalling 62.9mm. Comfortable conditions for being outdoors all day.
February in Waco averages a daily high of 17.2°C with nights around 4°C. Expect roughly 6.5 wet days totalling 62.8mm. Comfortable conditions for being outdoors all day.
March in Waco averages a daily high of 21°C with nights around 8.5°C. Expect roughly 7.6 wet days totalling 85.9mm. Comfortable conditions for being outdoors all day.
April in Waco averages a daily high of 25.1°C with nights around 12.7°C. Expect roughly 6.8 wet days totalling 82.9mm. Comfortable conditions for being outdoors all day.
May in Waco averages a daily high of 29°C with nights around 17.9°C. Expect roughly 8.5 wet days totalling 121.4mm. Comfortable conditions for being outdoors all day.
June in Waco averages a daily high of 33.1°C with nights around 22°C. Expect roughly 5.5 wet days totalling 89.7mm. Generally workable, with some weather to plan around.
July in Waco averages a daily high of 35.2°C with nights around 23.9°C. Expect roughly 4.4 wet days totalling 44.5mm. Generally workable, with some weather to plan around.
August in Waco averages a daily high of 36.2°C with nights around 24.1°C. Expect roughly 4.5 wet days totalling 52.2mm. Demanding conditions — pack for it and plan indoor options.
September in Waco averages a daily high of 32.7°C with nights around 20°C. Expect roughly 5.4 wet days totalling 76.9mm. Generally workable, with some weather to plan around.
October in Waco averages a daily high of 27.4°C with nights around 13.8°C. Expect roughly 6.6 wet days totalling 108.8mm. Comfortable conditions for being outdoors all day.
November in Waco averages a daily high of 20.9°C with nights around 8.1°C. Expect roughly 6.6 wet days totalling 73.4mm. Comfortable conditions for being outdoors all day.
December in Waco averages a daily high of 15.9°C with nights around 3.1°C. Expect roughly 6.5 wet days totalling 67.9mm. 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. Waco peaks at 87.
Based on 30 years of records, March–April scores highest for comfort in Waco, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 36.2°C.
May is the wettest, averaging 121.4mm of rain across roughly 8.5 wet days.
January is the coolest month, with average daily highs around 15.9°C.