Marshfield weather in September: Marshfield, Wisconsin: normal highs, lows, rain and records for September
Marshfield in September has a normal high of 70°F and a normal low of 49°F, a daily mean of 59°F, falling from 75°F on the 1st to 64°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 3.03 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 9°C, 77 mm of precipitation in September.
- NOAA stationMarshfield Municipal Airport
- Station IDUSW00094985
- Location44.64°N 90.19°W
- Elevation1,255 ft (383 m)
- Population18,973
- Jan 23° 7°
- Feb 27° 10°
- Mar 39° 22°
- Apr 54° 33°
- May 67° 45°
- Jun 76° 55°
- Jul 80° 58°
- Aug 78° 57°
- Sep 70° 49°
- Oct 56° 37°
- Nov 41° 25°
- Dec 28° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Marshfield in September?
The normal high is 70°F and the normal low 49°F, for a daily mean of 59.3°F. September is 8.0°F cooler than August and 12.8°F warmer than October. September is the 4th warmest month of the year in Marshfield and the 4th wettest. Across the month the normal high falls 11°F, from 75°F on September 1 to 64°F on September 30. From one year to the next September's mean temperature typically moves about 3.2°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 56°F and 63°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 75°F | 54°F | 32% | 16% |
| September 8 | 73°F | 52°F | 32% | 16% |
| September 15 | 71°F | 49°F | 33% | 15% |
| September 22 | 68°F | 46°F | 33% | 15% |
| September 30 | 64°F | 43°F | 32% | 15% |
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 | 75°F | 54°F | 32% | 16% | 13 h 20 min |
| September 2 | 75°F | 53°F | 32% | 16% | 13 h 20 min |
| September 3 | 75°F | 53°F | 32% | 16% | 13 h 10 min |
| September 4 | 74°F | 53°F | 32% | 16% | 13 h 10 min |
| September 5 | 74°F | 53°F | 32% | 16% | 13 h 10 min |
| September 6 | 74°F | 52°F | 32% | 16% | 13 h |
| September 7 | 73°F | 52°F | 32% | 16% | 13 h |
| September 8 | 73°F | 52°F | 32% | 16% | 13 h |
| September 9 | 73°F | 51°F | 32% | 16% | 12 h 50 min |
| September 10 | 72°F | 51°F | 32% | 16% | 12 h 50 min |
| September 11 | 72°F | 51°F | 32% | 16% | 12 h 50 min |
| September 12 | 72°F | 50°F | 32% | 15% | 12 h 40 min |
| September 13 | 71°F | 50°F | 33% | 15% | 12 h 40 min |
| September 14 | 71°F | 49°F | 33% | 15% | 12 h 40 min |
| September 15 | 71°F | 49°F | 33% | 15% | 12 h 40 min |
| September 16 | 70°F | 49°F | 33% | 15% | 12 h 30 min |
| September 17 | 70°F | 48°F | 33% | 15% | 12 h 30 min |
| September 18 | 69°F | 48°F | 33% | 15% | 12 h 30 min |
| September 19 | 69°F | 48°F | 33% | 15% | 12 h 20 min |
| September 20 | 69°F | 47°F | 33% | 15% | 12 h 20 min |
| September 21 | 68°F | 47°F | 33% | 15% | 12 h 20 min |
| September 22 | 68°F | 46°F | 33% | 15% | 12 h 10 min |
| September 23 | 67°F | 46°F | 33% | 15% | 12 h 10 min |
| September 24 | 67°F | 46°F | 33% | 15% | 12 h 10 min |
| September 25 | 66°F | 45°F | 33% | 15% | 12 h 10 min |
| September 26 | 66°F | 45°F | 33% | 15% | 12 h |
| September 27 | 65°F | 44°F | 33% | 15% | 12 h |
| September 28 | 65°F | 44°F | 32% | 15% | 12 h |
| September 29 | 64°F | 44°F | 32% | 15% | 11 h 50 min |
| September 30 | 64°F | 43°F | 32% | 15% | 11 h 50 min |
- Normal high
- 70°FSeptember average
- Normal low
- 49°FSeptember average
- Precipitation
- 3.03 inmonth total
- Days with precipitation
- 100.01 inch or more
- Daylight
- 13 h 20 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 17
- Days at 80°F or more
- 6
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094985; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Marshfield in September?
On a given September day the chance of 0.01 inch or more is 32% on average, highest around September 21 (33%). In all, 3.03 in falls on 10 days of a normal September, 1 of them with an inch or more.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094985.
How humid and windy is Marshfield in September?
At 3 p.m. the normal temperature is 63°F with 53% relative humidity and a dew point of 45°F; at 6 a.m. it is 47°F with 88% humidity. The wind averages 8.0 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. | 47°F | 43°F | 88% | 6.4 mph | – |
| 9 a.m. | 55°F | 46°F | 73% | 9.6 mph | – |
| noon | 61°F | 46°F | 57% | 10.7 mph | – |
| 3 p.m. | 63°F | 45°F | 53% | 10.8 mph | – |
| 6 p.m. | 57°F | 46°F | 67% | 7.1 mph | – |
| 9 p.m. | 52°F | 45°F | 77% | 6.7 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094985. 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 Marshfield?
The warmest September temperature on this station's record (since 1996) is 98°F, on September 3, 2023; the coldest is 27°F, on September 15, 2007. The wettest September brought 7.47 in (2019).
The September mean against the 1991-2020 normal of 59.3°F: 2021 60.8°F (+1.5), 2022 60.2°F (+0.9), 2023 63.6°F (+4.3), 2024 64.8°F (+5.5), 2025 62.3°F (+3.0), 2026 62.5°F (+3.3). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.8°F | +1.5°F | 0.96 in |
| 2022 | 60.2°F | +0.9°F | 1.25 in |
| 2023 | 63.6°F | +4.3°F | 4.51 in |
| 2024 | 64.8°F | +5.5°F | 2.35 in |
| 2025 | 62.3°F | +3.0°F | 2.13 in |
| 2026 | 62.5°F | +3.3°F | 4.91 in |
Source: records: ACIS, station USW00094985; recent months: ACIS, station USW00094985. Records and recent months use complete months only.
How does September in Marshfield compare across Wisconsin?
Across the 165 places PlainClimate covers in Wisconsin, September normal highs run from 64°F in Laona to 77°F in West Allis; Marshfield's is 70°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Marshfield in August78°F by day, 57°F at night
- Marshfield in October56°F by day, 37°F at night
- Marshfield through the yearEvery month, frost dates, records and recent years
- Wisconsin in SeptemberThe statewide normal and the warmest and coolest places
- West Allis: Wisconsin's warmest Septembernormal high 77°F