Decatur Climate: Weather by Month and Best Time to Visit

Best months for Decatur: September, August, July.

Year at a glance

2° -6° J 5° -4° F 12° 1° M 19° 7° A 24° 13° M 28° 18° J 30° 20° J 29° 19° A 26° 14° S 19° 8° O 11° 2° N 5° -3° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 2°C-6°C69 mm 8– – 4.3
February 5°C-4°C59 mm 7– – 5.0
March 12°C1°C83 mm 10– – 6.0
April 19°C7°C117 mm 12– – 6.8
May 24°C13°C122 mm 13– – 7.1
June 28°C18°C111 mm 11– – 7.4
July 30°C20°C91 mm 10– – 7.5
August 29°C19°C76 mm 9– – 8.0
September 26°C14°C82 mm 8– – 8.1
October 19°C8°C87 mm 9– – 7.4
November 11°C2°C88 mm 9– – 6.2
December 5°C-3°C63 mm 9– – 4.9