If you're looking for summer vibes, the best time to travel to Fort Sill is in July, August and June, when the average temperature reaches 31.79 °C, while July, October and August are the 3 sunniest months of the year, with an average of 190.3 hours.
However, if you prefer colder temperatures, make sure you visit Fort Sill during January, February or December to experience an average of 2.89 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during January, February and July, when the average precipitation in Fort Sill is 8.25 mm, while the months of January, February and March are drier, with an average of 0 mm.