Frankfort Weather in September
September in Frankfort brings high temperatures around 27°C (81°F) during the day, dropping to 14°C (57°F) at night, with quite a bit of rainfall expected, averaging around 105 mm (4.1 in) for the month.
Rainfall in Frankfort in September
Expect around 9 days of rain based on historical data, with 105 mm (4.1 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Frankfort in September
September in Frankfort brings typical temperatures with highs around 27°C (81°F) and lows of 14°C (57°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Frankfort's climate page.
Frankfort Temperature in September
Min Temperature
14°C (57°F)
Max Temperature
27°C (81°F)
Chance of Rain
30%
Precipitation
105 mm (4.1 in)
Rainy days
9 days
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Frankfort typically drop from around 28°C (82°F) at the start of September to approximately 24°C (75°F) by the end. Nights are pleasant, with lows typically ranging from 11°C (52°F) to 18°C (64°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Frankfort in September
Browse day-by-day weather records for Frankfort spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Frankfort historical weather extremes in September
Based on 49 years of weather observations in Frankfort between 1976 and 2025, these are the recorded extremes.
- The hottest September day on record in Frankfort reached 37°C (99°F) (September 3, 2011).
- The coldest September day was on September 25, 2001, with a maximum of 12°C (54°F).
- Frankfort registered its coldest September night on September 23, 2012, with temperatures dropping to 2°C (36°F).
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Frankfort in September
Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). High rain levels are expected, so pack waterproof gear and an umbrella or poncho.What To Do in Frankfort in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Frankfort's climate page.
See the full Frankfort climate overview or explore weather in the United States of America.
