Redwood Falls weather in September: Redwood Falls, Minnesota: normal highs, lows, rain and records for September
Redwood Falls in September has a normal high of 74°F and a normal low of 50°F, a daily mean of 62°F, falling from 79°F on the 1st to 68°F by the 30th. Measurable precipitation falls on 8 days in a normal September, 2.85 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 10°C, 72 mm of precipitation in September.
- NOAA stationRedwood Falls Municipal Airport
- Station IDUSW00014992
- Location44.55°N 95.08°W
- Elevation1,021 ft (311 m)
- Population5,038
- Jan 23° 6°
- Feb 28° 10°
- Mar 41° 23°
- Apr 57° 35°
- May 70° 48°
- Jun 80° 58°
- Jul 84° 62°
- Aug 81° 59°
- Sep 74° 50°
- Oct 59° 37°
- Nov 42° 24°
- Dec 28° 12°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Redwood Falls in September?
The normal high is 74°F and the normal low 50°F, for a daily mean of 62.3°F. September is 7.7°F cooler than August and 14.0°F warmer than October. September is the 4th warmest month of the year in Redwood Falls and the 5th wettest. Across the month the normal high falls 11°F, from 79°F on September 1 to 68°F on September 30. From one year to the next September's mean temperature typically moves about 2.9°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 59°F and 65°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 28%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 79°F | 56°F | 28% | 17% |
| September 8 | 77°F | 53°F | 28% | 17% |
| September 15 | 75°F | 51°F | 28% | 18% |
| September 22 | 72°F | 48°F | 28% | 18% |
| September 30 | 68°F | 44°F | 28% | 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 | 79°F | 56°F | 28% | 17% | 13 h 20 min |
| September 2 | 79°F | 55°F | 28% | 17% | 13 h 10 min |
| September 3 | 78°F | 55°F | 28% | 17% | 13 h 10 min |
| September 4 | 78°F | 55°F | 28% | 17% | 13 h 10 min |
| September 5 | 78°F | 54°F | 28% | 17% | 13 h 10 min |
| September 6 | 78°F | 54°F | 28% | 17% | 13 h |
| September 7 | 77°F | 54°F | 28% | 17% | 13 h |
| September 8 | 77°F | 53°F | 28% | 17% | 13 h |
| September 9 | 77°F | 53°F | 28% | 17% | 12 h 50 min |
| September 10 | 77°F | 53°F | 28% | 17% | 12 h 50 min |
| September 11 | 76°F | 52°F | 28% | 17% | 12 h 50 min |
| September 12 | 76°F | 52°F | 28% | 17% | 12 h 40 min |
| September 13 | 76°F | 51°F | 28% | 18% | 12 h 40 min |
| September 14 | 75°F | 51°F | 28% | 18% | 12 h 40 min |
| September 15 | 75°F | 51°F | 28% | 18% | 12 h 40 min |
| September 16 | 75°F | 50°F | 28% | 18% | 12 h 30 min |
| September 17 | 74°F | 50°F | 28% | 18% | 12 h 30 min |
| September 18 | 74°F | 49°F | 28% | 18% | 12 h 30 min |
| September 19 | 73°F | 49°F | 28% | 18% | 12 h 20 min |
| September 20 | 73°F | 49°F | 28% | 18% | 12 h 20 min |
| September 21 | 73°F | 48°F | 28% | 18% | 12 h 20 min |
| September 22 | 72°F | 48°F | 28% | 18% | 12 h 10 min |
| September 23 | 72°F | 47°F | 28% | 18% | 12 h 10 min |
| September 24 | 71°F | 47°F | 28% | 18% | 12 h 10 min |
| September 25 | 71°F | 46°F | 28% | 18% | 12 h 10 min |
| September 26 | 70°F | 46°F | 28% | 17% | 12 h |
| September 27 | 70°F | 46°F | 28% | 17% | 12 h |
| September 28 | 69°F | 45°F | 28% | 17% | 12 h |
| September 29 | 69°F | 45°F | 28% | 17% | 11 h 50 min |
| September 30 | 68°F | 44°F | 28% | 17% | 11 h 50 min |
- Normal high
- 74°FSeptember average
- Normal low
- 50°FSeptember average
- Precipitation
- 2.85 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 2
- Nights at 32°F or colder
- 1
- Daylight
- 13 h 20 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 20
- Days at 80°F or more
- 10
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014992; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Redwood Falls in September?
On a given September day the chance of 0.01 inch or more is 28% on average, highest around September 20 (28%). In all, 2.85 in falls on 8 days of a normal September, 1 of them with an inch or more.
In a normal September in Redwood Falls, 2 days reach 90°F and 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014992.
How humid and windy is Redwood Falls in September?
At 3 p.m. the normal temperature is 66°F with 43% relative humidity and a dew point of 43°F; at 6 a.m. it is 48°F with 84% humidity. The wind averages 9.7 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. | 48°F | 43°F | 84% | 8.0 mph | 67% |
| 9 a.m. | 55°F | 45°F | 70% | 10.5 mph | 64% |
| noon | 63°F | 44°F | 50% | 12.6 mph | 61% |
| 3 p.m. | 66°F | 43°F | 43% | 12.7 mph | 60% |
| 6 p.m. | 61°F | 44°F | 52% | 8.8 mph | 67% |
| 9 p.m. | 54°F | 44°F | 67% | 8.5 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014992. 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 Redwood Falls?
The warmest September temperature on this station's record (since 1906) is 105°F, on September 10, 1931; the coldest is 25°F, on September 30, 1939. The wettest September brought 8.52 in (2010); the snowiest, 3.2 inches (1942).
The September mean against the 1991-2020 normal of 62.3°F: 2021 65.4°F (+3.1), 2022 64.6°F (+2.3), 2023 67.4°F (+5.1), 2024 68.2°F (+5.9), 2026 65.9°F (+3.6). 5 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.4°F | +3.1°F | 2.30 in |
| 2022 | 64.6°F | +2.3°F | 0.41 in |
| 2023 | 67.4°F | +5.1°F | 1.81 in |
| 2024 | 68.2°F | +5.9°F | 0.00 in |
| 2026 | 65.9°F | +3.6°F | 2.16 in |
Source: records: ACIS, station USW00014992; recent months: ACIS, station USW00014992. Records and recent months use complete months only.
How does September in Redwood Falls 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; Redwood Falls's is 74°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Redwood Falls in August81°F by day, 59°F at night
- Redwood Falls in October59°F by day, 37°F at night
- Redwood Falls 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