| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 8.4° | -2° | 104.5mm | 11.7 | 33 |
| February | 11° | -0.4° | 115.7mm | 11.4 | 45 |
| March | 16.5° | 3.9° | 118.6mm | 12 | 65 |
| April | 22° | 8.4° | 129.5mm | 12 | 76 |
| May | 26.6° | 14.2° | 138.1mm | 12.5 | 75 |
| June | 30.6° | 18.5° | 115.8mm | 10.6 | 64 |
| July | 32.3° | 20.8° | 123.9mm | 10.8 | 57 |
| August | 32.2° | 20.1° | 102.1mm | 10 | 59 |
| September | 28.8° | 15.9° | 90mm | 8.6 | 76 |
| October | 22.8° | 9.1° | 107.1mm | 9 | 82 |
| November | 15.9° | 3.3° | 100mm | 10.3 | 66 |
| December | 10.6° | 0° | 122.3mm | 12.4 | 42 |
January in Clarksville averages a daily high of 8.4°C with nights around -2°C. Expect roughly 11.7 wet days totalling 104.5mm. A hard month to visit for comfort alone.
February in Clarksville averages a daily high of 11°C with nights around -0.4°C. Expect roughly 11.4 wet days totalling 115.7mm. Demanding conditions — pack for it and plan indoor options.
March in Clarksville averages a daily high of 16.5°C with nights around 3.9°C. Expect roughly 12 wet days totalling 118.6mm. Generally workable, with some weather to plan around.
April in Clarksville averages a daily high of 22°C with nights around 8.4°C. Expect roughly 12 wet days totalling 129.5mm. Comfortable conditions for being outdoors all day.
May in Clarksville averages a daily high of 26.6°C with nights around 14.2°C. Expect roughly 12.5 wet days totalling 138.1mm. Comfortable conditions for being outdoors all day.
June in Clarksville averages a daily high of 30.6°C with nights around 18.5°C. Expect roughly 10.6 wet days totalling 115.8mm. Generally workable, with some weather to plan around.
July in Clarksville averages a daily high of 32.3°C with nights around 20.8°C. Expect roughly 10.8 wet days totalling 123.9mm. Generally workable, with some weather to plan around.
August in Clarksville averages a daily high of 32.2°C with nights around 20.1°C. Expect roughly 10 wet days totalling 102.1mm. Generally workable, with some weather to plan around.
September in Clarksville averages a daily high of 28.8°C with nights around 15.9°C. Expect roughly 8.6 wet days totalling 90mm. Comfortable conditions for being outdoors all day.
October in Clarksville averages a daily high of 22.8°C with nights around 9.1°C. Expect roughly 9 wet days totalling 107.1mm. Comfortable conditions for being outdoors all day.
November in Clarksville averages a daily high of 15.9°C with nights around 3.3°C. Expect roughly 10.3 wet days totalling 100mm. Generally workable, with some weather to plan around.
December in Clarksville averages a daily high of 10.6°C with nights around 0°C. Expect roughly 12.4 wet days totalling 122.3mm. Demanding conditions — pack for it and plan indoor options.
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. Clarksville peaks at 82.
Based on 30 years of records, April–May scores highest for comfort in Clarksville, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 32.3°C.
May is the wettest, averaging 138.1mm of rain across roughly 12.5 wet days.
January is the coolest month, with average daily highs around 8.4°C.