Minneapolis, MN weather in September
September in Minneapolis: mild, with some rain. Highs 73°F, lows 54°F, about 9 days with rain. A good month for most outdoor plans.
- Normal high
- 73°F
- Normal low
- 54°F
- Wet days
- 9
- 3.0 in total
- Muggy days
- 2
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 78°F | 67°F |
| Normal low | 60°F | 48°F |
| Chance of a wet day | 31% | 32% |
| Sunrise / sunset | 6:35 am / 7:50 pm | 7:10 am / 6:56 pm |
| Daylight | 13.3 h | 11.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical September day
- 6 am56°Fdew point 51°F
- 9 am62°Fdew point 52°F
- Noon68°Fdew point 52°F
- 3 pm71°Fdew point 51°F
- 6 pm68°Fdew point 51°F
- 9 pm63°Fdew point 52°F
NOAA hourly normals (local standard time) from Minneapolis/St Paul Airport (7 mi away); average wind 9 mph; clear or few clouds in 37% of daytime hours, mostly cloudy or overcast in 44%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F15 of 30
- Hot dayshigh 90°F or more1 of 30
- Muggy daysdaily mean dew point 65°F or more2 of 30
- Wet daysat least 0.01 in of rain or melted snow9 of 30
- Notable rainat least 0.10 in5 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 3.0 in; a dry September brings about 1.3 in and a wet one about 4.6 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How September varies from year to year
- Warmest September, 1991-20201998: average high 78°F
- Coolest September1993: average high 64°F
- Wettest September2018: 6.9 in
- Driest September2012: 0.3 in
- Highest reading95°F (September 11, 2012)
- Lowest reading29°F (September 27, 1991)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 81°F | 73°F | 58°F |
| Normal low | 63°F | 54°F | 41°F |
| Wet days | 10 | 9 | 10 |
| Comfortable days | 10 | 15 | 8 |
| Daylight | 14.0 h | 12.5 h | 10.9 h |
Highs change by -8°F from August and -15°F into October.
Nearby alternatives in September
- Cooler: Duluth, MN136 mi · high 67°F · 10 wet days
How Minneapolis ranks in September
- Normal high320th warmest of 378 cities; 1st of 3 in Minnesota
- Wet days269th driest of 378
- Comfortable days84th most of 342
What to pack for Minneapolis in September
- A rain jacket or umbrella – rain on about 9 days
Heating and cooling
September has 128 heating degree days and 84 cooling degree days (base 65°F), 3% of the year's total heating and cooling demand.
Questions
How hot is Minneapolis in September?
The normal high is 73°F and the normal low is 54°F. From 1991 to 2020 the hottest September reading was 95°F (September 11, 2012).
Does it rain a lot in Minneapolis in September?
About 9 days in September have at least 0.01 in of precipitation, and the normal total is 3.0 in. The wettest September in 1991-2020 was in 2018 (6.9 in); the driest was in 2012 (0.3 in).
Is September a good time to visit Minneapolis?
September ranks 2nd of 12 months on our comfort score for Minneapolis (69 out of 100). It has about 15 comfortable days and about 1 day at 90°F or hotter. The best months are May and September.
Where the numbers come from
- Temperature, rain, snow depth, humidity and wind by hour and cloud cover: Minneapolis/St Paul Airport (USW00014922), 6.9 mi SSE of the city center, 872 ft . NOAA normals and daily records, 1991-2020.
- Snowfall: New Hope (USC00215838), 6.0 mi WNW of the city center, 910 ft (80 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Frost dates: Lower St Anthony Falls (USC00214884), 0.8 mi E of the city center, 754 ft (76 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Minneapolis-St Paul International Airport (726580-14922), 6.8 mi SSE of the city center, 835 ft . Hourly observations, 1991-2020.