If you're looking for summer vibes, the best time to travel to Roswell, NM is in July, June and August, when the average temperature reaches 28.22 °C, while October, September and November are the 3 sunniest months of the year, with an average of 129.56 hours.
However, if you prefer colder temperatures, make sure you visit Roswell, NM during January, February or November to experience an average of 4.39 °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 February, March and January, when the average precipitation in Roswell, NM is 10.5 mm, while the months of January, February and March are drier, with an average of 0 mm.