| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 10.2° | -2.3° | 33.8mm | 4.8 | 53 |
| February | 12.4° | -0.3° | 34.1mm | 5.8 | 61 |
| March | 17.6° | 4.7° | 64.1mm | 6.9 | 79 |
| April | 22.2° | 9.2° | 91.5mm | 7.8 | 84 |
| May | 26.5° | 14.9° | 133.2mm | 9.9 | 80 |
| June | 31.3° | 19.6° | 116.7mm | 8.4 | 66 |
| July | 34.4° | 21.8° | 95.2mm | 5.9 | 59 |
| August | 34.1° | 21.4° | 91.8mm | 6.7 | 58 |
| September | 29.8° | 17.2° | 79.7mm | 6.3 | 76 |
| October | 23.3° | 10.5° | 87.9mm | 7.2 | 86 |
| November | 16.8° | 4° | 40.7mm | 5.4 | 79 |
| December | 11° | -0.8° | 40.1mm | 5.3 | 56 |
January in Oklahoma City averages a daily high of 10.2°C with nights around -2.3°C. Expect roughly 4.8 wet days totalling 33.8mm. Demanding conditions — pack for it and plan indoor options.
February in Oklahoma City averages a daily high of 12.4°C with nights around -0.3°C. Expect roughly 5.8 wet days totalling 34.1mm. Generally workable, with some weather to plan around.
March in Oklahoma City averages a daily high of 17.6°C with nights around 4.7°C. Expect roughly 6.9 wet days totalling 64.1mm. Comfortable conditions for being outdoors all day.
April in Oklahoma City averages a daily high of 22.2°C with nights around 9.2°C. Expect roughly 7.8 wet days totalling 91.5mm. Comfortable conditions for being outdoors all day.
May in Oklahoma City averages a daily high of 26.5°C with nights around 14.9°C. Expect roughly 9.9 wet days totalling 133.2mm. Comfortable conditions for being outdoors all day.
June in Oklahoma City averages a daily high of 31.3°C with nights around 19.6°C. Expect roughly 8.4 wet days totalling 116.7mm. Generally workable, with some weather to plan around.
July in Oklahoma City averages a daily high of 34.4°C with nights around 21.8°C. Expect roughly 5.9 wet days totalling 95.2mm. Generally workable, with some weather to plan around.
August in Oklahoma City averages a daily high of 34.1°C with nights around 21.4°C. Expect roughly 6.7 wet days totalling 91.8mm. Generally workable, with some weather to plan around.
September in Oklahoma City averages a daily high of 29.8°C with nights around 17.2°C. Expect roughly 6.3 wet days totalling 79.7mm. Comfortable conditions for being outdoors all day.
October in Oklahoma City averages a daily high of 23.3°C with nights around 10.5°C. Expect roughly 7.2 wet days totalling 87.9mm. Comfortable conditions for being outdoors all day.
November in Oklahoma City averages a daily high of 16.8°C with nights around 4°C. Expect roughly 5.4 wet days totalling 40.7mm. Comfortable conditions for being outdoors all day.
December in Oklahoma City averages a daily high of 11°C with nights around -0.8°C. Expect roughly 5.3 wet days totalling 40.1mm. 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. Oklahoma City peaks at 86.
Based on 30 years of records, March–May scores highest for comfort in Oklahoma City, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 34.4°C.
May is the wettest, averaging 133.2mm of rain across roughly 9.9 wet days.
January is the coolest month, with average daily highs around 10.2°C.