September weather forecast
Indiana, USA

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Flag of Indiana, USA

Weather in September

Indiana in September is a kaleidoscope of colors and a harbinger of the imminent fall season. The month witnesses a notable shift in temperatures, generally ranging from 55°F (12.8°C) to 78°F (25.6°C). The northern regions, influenced by their proximity to Lake Michigan, start to cool more rapidly than the southern parts, where summer warmth lingers a little longer.

Rainfall in September slightly decreases compared to the preceding months, and the nature of the precipitation begins to change. While there are still occasional thunderstorms, prolonged periods of gentle rain become more common, nourishing the landscapes and aiding in the transformation of foliage.

Contrasted with August, September's climate is palpably cooler, with the declining angle of the sun contributing to shorter and less intense daylight. The dwindling warmth of summer is replaced by the crispness of early fall, especially evident in the cool mornings and evenings.

The luminosity of September is distinct, with the sun casting a golden hue over Indiana. The plains, especially those dedicated to agriculture, start showing signs of harvest readiness. Simultaneously, forests, notably in the southern hilly regions, commence their mesmerizing transition, with leaves changing from verdant green to shades of amber, orange, and red.

Outdoor pursuits in September shift in nature. While water-based activities at Lake Michigan start to wane, the focus turns to terrestrial adventures. Hiking trails, particularly in the Hoosier National Forest and other wooded areas, attract enthusiasts keen on experiencing the early fall foliage. September also beckons agritourism enthusiasts, with farms offering apple picking and the onset of corn mazes.

  • Indianapolis - September »
    In Indianapolis, in September, during 12.2 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. September's arrival in Indianapolis shows an average high-temperature of a still warm 75.9°F (24.4°C), hardly different from the previous month.
  • Fort Wayne - September »
    In Fort Wayne, Indiana, snow does not fall in June through September. In Fort Wayne in September, it is raining for 12.9 days, with typically 1.54" (39mm) of accumulated precipitation.
  • Evansville - September »
    The month with the least rainfall in Evansville is September, when the rain falls for 11.5 days and typically collects 1.26" (32mm) of precipitation. On the first day of September in Evansville sunrise is at 6:20 am and sunset at 7:20 pm.
  • South Bend - September »
    In South Bend, in September, during 13.6 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. On the first day of September in South Bend, sunrise is at 7:10 am and sunset at 8:19 pm.
  • Carmel - September »
    September in Carmel introduces the mild fall season, with decreasing temperatures and shorter days. In Carmel snow does not fall in May through September.
  • Bloomington - September »
    The months with the least rainfall in Bloomington are September and October Rain falls for 12.4 days and accumulates 1.65" (42mm) of rain. The months with the least rainfall in Bloomington are September and October Rain falls for 12.4 days and accumulates 1.65" (42mm) of rain.
  • Fishers - September »
    In Fishers in September, it is raining for 12.6 days, with typically 1.54" (39mm) of accumulated precipitation. On the first day of September in Fishers, sunrise is at 7:11 am and sunset at 8:16 pm.
  • Hammond - September »
    In Hammond in September, it is raining for 13 days, with typically 2.05" (52mm) of accumulated precipitation. On the first day of September in Hammond, sunrise is at 6:16 am and sunset at 7:23 pm.
  • Gary - September »
    In Gary in September, during 13.8 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. On the first day of September in Gary sunrise is at 6:15 am and sunset at 7:23 pm.
  • Lafayette - September »
    The month with the least rainfall in Lafayette is September, when the rain falls for 11.2 days and typically collects 1.1" (28mm) of precipitation. In Lafayette during September, the rain falls for 11.2 days and regularly aggregates up to 1.1" (28mm) of precipitation.
  • Muncie - September »
    In September, in Muncie the rain falls for 13.7 days. In September, in Muncie, Indiana, the rain falls for 13.7 days.
  • Terre Haute - September »
    On the first day of September in Terre Haute, Indiana, sunrise is at 7:18 am and sunset at 8:21 pm. In September, in Terre Haute, Indiana, the rain falls for 12.5 days.
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Indiana, USA

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