September weather in Laconia, IN
The average temperature in Laconia in September is 68.0°F (55.8°F–80.3°F). Average precipitation: 3.84 inches.
September is a fall month in Laconia, and is warmer than the annual average of 55.2°F. Daily temperatures swing about 24.5°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
80.3°F
Avg Low
55.8°F
Precipitation
3.84 in
Daylight
12h 14m
September records in Laconia
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2024) | 46.0°F (2025) | 2.00 in (2013) |
| September 2 | 97.0°F (2011) | 46.9°F (2025) | 3.28 in (2017) |
| September 3 | 100.9°F (2011) | 45.0°F (2025) | 0.67 in (2012) |
| September 4 | 100.9°F (2011) | 51.1°F (2017) | 0.30 in (2012) |
| September 5 | 96.1°F (2007) | 46.0°F (2010) | 0.35 in (2011) |
| September 6 | 93.9°F (2015) | 45.0°F (2010) | 0.65 in (2012) |
| September 7 | 93.0°F (2002) | 45.0°F (2010) | 0.60 in (2011) |
| September 8 | 95.0°F (2010) | 44.1°F (2017) | 1.02 in (2001) |
| September 9 | 93.9°F (2002) | 43.0°F (2024) | 0.90 in (2018) |
| September 10 | 95.0°F (2002) | 42.1°F (2024) | 1.29 in (2006) |
| September 11 | 98.1°F (2019) | 44.1°F (2025) | 1.49 in (2014) |
| September 12 | 93.9°F (2019) | 44.1°F (2025) | 0.63 in (2006) |
| September 13 | 93.9°F (2019) | 46.0°F (2015) | 0.47 in (2017) |
| September 14 | 95.0°F (2019) | 45.0°F (2014) | 2.00 in (2025) |
| September 15 | 88.0°F (2010) | 45.0°F (2014) | 0.68 in (2002) |
| September 16 | 93.9°F (2010) | 42.1°F (2000) | 0.00 in (2000) |
| September 17 | 93.0°F (2019) | 39.9°F (2000) | 0.35 in (2018) |
| September 18 | 93.0°F (2010) | 39.9°F (2000) | 0.30 in (2006) |
| September 19 | 91.0°F (2018) | 41.0°F (2012) | 0.41 in (2011) |
| September 20 | 91.9°F (2018) | 30.9°F (2003) | 1.22 in (2017) |
| September 21 | 93.9°F (2018) | 41.0°F (2006) | 1.75 in (2013) |
| September 22 | 96.1°F (2010) | 44.1°F (2006) | 3.94 in (2006) |
| September 23 | 96.1°F (2010) | 37.0°F (2012) | 2.01 in (2018) |
| September 24 | 96.1°F (2010) | 36.0°F (2012) | 0.45 in (2000) |
| September 25 | 93.0°F (2007) | 37.0°F (2012) | 2.15 in (2018) |
| September 26 | 90.0°F (2016) | 37.0°F (2001) | 4.75 in (2002) |
| September 27 | 90.0°F (2016) | 37.0°F (2001) | 1.15 in (2006) |
| September 28 | 93.0°F (2019) | 33.1°F (2016) | 2.40 in (2024) |
| September 29 | 93.0°F (2019) | 39.0°F (2000) | 0.40 in (2024) |
| September 30 | 95.0°F (2019) | 39.9°F (2003) | 0.92 in (2015) |