Minneapolis weather in September: Minneapolis, Minnesota: normal highs, lows, rain and records for September
Minneapolis in September has a normal high of 73°F and a normal low of 54°F, a daily mean of 64°F, falling from 78°F on the 1st to 67°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 3.02 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 23°C and low of 12°C, 77 mm of precipitation in September.
- NOAA stationMinneapolis/St Paul Airport
- Station IDUSW00014922
- Location44.88°N 93.23°W
- Elevation872 ft (266 m)
- From the center6 miles
- Population428,579
- Jan 24° 9°
- Feb 29° 13°
- Mar 42° 25°
- Apr 57° 38°
- May 69° 50°
- Jun 79° 60°
- Jul 83° 65°
- Aug 81° 63°
- Sep 73° 54°
- Oct 58° 41°
- Nov 42° 28°
- Dec 29° 15°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Minneapolis in September?
The normal high is 73°F and the normal low 54°F, for a daily mean of 63.5°F. September is 8.3°F cooler than August and 14.0°F warmer than October. September is the 4th warmest month of the year in Minneapolis and the 5th wettest. Across the month the normal high falls 11°F, from 78°F on September 1 to 67°F on September 30. From one year to the next September's mean temperature typically moves about 3.0°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 61°F and 67°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 78°F | 60°F | 31% | 18% |
| September 8 | 76°F | 57°F | 31% | 18% |
| September 15 | 74°F | 55°F | 31% | 18% |
| September 22 | 71°F | 52°F | 32% | 18% |
| September 30 | 67°F | 48°F | 32% | 17% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 78°F | 60°F | 31% | 18% | 13 h 20 min |
| September 2 | 78°F | 59°F | 31% | 18% | 13 h 20 min |
| September 3 | 77°F | 59°F | 31% | 18% | 13 h 10 min |
| September 4 | 77°F | 59°F | 31% | 18% | 13 h 10 min |
| September 5 | 77°F | 59°F | 31% | 18% | 13 h 10 min |
| September 6 | 77°F | 58°F | 31% | 18% | 13 h |
| September 7 | 76°F | 58°F | 31% | 18% | 13 h |
| September 8 | 76°F | 57°F | 31% | 18% | 13 h |
| September 9 | 76°F | 57°F | 31% | 18% | 12 h 50 min |
| September 10 | 75°F | 57°F | 31% | 18% | 12 h 50 min |
| September 11 | 75°F | 56°F | 31% | 18% | 12 h 50 min |
| September 12 | 75°F | 56°F | 31% | 18% | 12 h 50 min |
| September 13 | 74°F | 56°F | 31% | 18% | 12 h 40 min |
| September 14 | 74°F | 55°F | 31% | 18% | 12 h 40 min |
| September 15 | 74°F | 55°F | 31% | 18% | 12 h 40 min |
| September 16 | 73°F | 54°F | 31% | 18% | 12 h 30 min |
| September 17 | 73°F | 54°F | 31% | 18% | 12 h 30 min |
| September 18 | 72°F | 53°F | 31% | 18% | 12 h 30 min |
| September 19 | 72°F | 53°F | 32% | 18% | 12 h 20 min |
| September 20 | 71°F | 53°F | 32% | 18% | 12 h 20 min |
| September 21 | 71°F | 52°F | 32% | 18% | 12 h 20 min |
| September 22 | 71°F | 52°F | 32% | 18% | 12 h 10 min |
| September 23 | 70°F | 51°F | 32% | 18% | 12 h 10 min |
| September 24 | 70°F | 51°F | 32% | 18% | 12 h 10 min |
| September 25 | 69°F | 50°F | 32% | 18% | 12 h 10 min |
| September 26 | 69°F | 50°F | 32% | 18% | 12 h |
| September 27 | 68°F | 49°F | 32% | 18% | 12 h |
| September 28 | 68°F | 49°F | 32% | 17% | 12 h |
| September 29 | 67°F | 48°F | 32% | 17% | 11 h 50 min |
| September 30 | 67°F | 48°F | 32% | 17% | 11 h 50 min |
- Normal high
- 73°FSeptember average
- Normal low
- 54°FSeptember average
- Precipitation
- 3.02 inmonth total
- Days with precipitation
- 90.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 20 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 19
- Days at 80°F or more
- 8
- Sunshine
- 76%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014922; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Minneapolis in September?
On a given September day the chance of 0.01 inch or more is 31% on average, highest around September 21 (32%). In all, 3.02 in falls on 9 days of a normal September, 1 of them with an inch or more.
In a normal September in Minneapolis, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014922.
How humid and windy is Minneapolis in September?
At 3 p.m. the normal temperature is 64°F with 49% relative humidity and a dew point of 44°F; at 6 a.m. it is 50°F with 81% humidity. The wind averages 9.3 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 50°F | 44°F | 81% | 7.7 mph | 40% |
| 9 a.m. | 55°F | 45°F | 69% | 9.8 mph | 43% |
| noon | 62°F | 45°F | 54% | 11.7 mph | 32% |
| 3 p.m. | 64°F | 44°F | 49% | 12.1 mph | 35% |
| 6 p.m. | 61°F | 44°F | 55% | 9.5 mph | 34% |
| 9 p.m. | 56°F | 45°F | 66% | 8.8 mph | 53% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014922. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Minneapolis?
The warmest September temperature on this station's record (since 1938) is 98°F, on September 15, 1939; the coldest is 26°F, on September 30, 1939. The wettest September brought 7.53 in (1942); the snowiest, 1.7 inches (1942).
The September mean against the 1991-2020 normal of 63.5°F: 2021 66.5°F (+3.0), 2022 66.0°F (+2.5), 2023 69.1°F (+5.6), 2024 70.4°F (+6.9), 2025 67.6°F (+4.1), 2026 67.1°F (+3.6). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 66.5°F | +3.0°F | 1.48 in |
| 2022 | 66.0°F | +2.5°F | 0.24 in |
| 2023 | 69.1°F | +5.6°F | 5.72 in |
| 2024 | 70.4°F | +6.9°F | 0.06 in |
| 2025 | 67.6°F | +4.1°F | 2.85 in |
| 2026 | 67.1°F | +3.6°F | 3.91 in |
Source: records: ACIS, station USW00014922; recent months: ACIS, station USW00014922. Records and recent months use complete months only.
How does September in Minneapolis compare across Minnesota?
Across the 129 places PlainClimate covers in Minnesota, September normal highs run from 62°F in Lutsen to 76°F in Milan; Minneapolis's is 73°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Minneapolis in August81°F by day, 63°F at night
- Minneapolis in October58°F by day, 41°F at night
- Minneapolis through the yearEvery month, frost dates, records and recent years
- Minnesota in SeptemberThe statewide normal and the warmest and coolest places
- Milan: Minnesota's warmest Septembernormal high 76°F