Beloit weather in September: Beloit, Wisconsin: normal highs, lows, rain and records for September
Beloit in September has a normal high of 71°F and a normal low of 50°F, a daily mean of 61°F, falling from 76°F on the 1st to 66°F by the 30th. Measurable precipitation falls on 8 days in a normal September, 3.83 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 22°C and low of 10°C, 97 mm of precipitation in September.
- NOAA stationBeloit
- Station IDUSC00470696
- Location42.50°N 89.03°W
- Elevation788 ft (240 m)
- Population36,633
- Jan 25° 11°
- Feb 29° 14°
- Mar 42° 24°
- Apr 55° 34°
- May 67° 46°
- Jun 76° 56°
- Jul 80° 60°
- Aug 78° 58°
- Sep 71° 50°
- Oct 58° 39°
- Nov 43° 27°
- Dec 31° 17°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Beloit in September?
The normal high is 71°F and the normal low 50°F, for a daily mean of 60.8°F. September is 7.3°F cooler than August and 12.3°F warmer than October. September is the 4th warmest month of the year in Beloit and the 4th wettest. Across the month the normal high falls 10°F, from 76°F on September 1 to 66°F on September 30. From one year to the next September's mean temperature typically moves about 2.7°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 58°F and 64°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 | 76°F | 55°F | 27% | 19% |
| September 8 | 74°F | 53°F | 27% | 19% |
| September 15 | 72°F | 51°F | 27% | 19% |
| September 22 | 69°F | 48°F | 27% | 18% |
| September 30 | 66°F | 45°F | 28% | 18% |
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 | 76°F | 55°F | 27% | 19% | 13 h 10 min |
| September 2 | 76°F | 55°F | 27% | 19% | 13 h 10 min |
| September 3 | 75°F | 55°F | 27% | 19% | 13 h 10 min |
| September 4 | 75°F | 55°F | 27% | 19% | 13 h |
| September 5 | 75°F | 54°F | 27% | 19% | 13 h |
| September 6 | 75°F | 54°F | 27% | 19% | 13 h |
| September 7 | 74°F | 54°F | 27% | 19% | 13 h |
| September 8 | 74°F | 53°F | 27% | 19% | 12 h 50 min |
| September 9 | 74°F | 53°F | 27% | 19% | 12 h 50 min |
| September 10 | 73°F | 53°F | 27% | 19% | 12 h 50 min |
| September 11 | 73°F | 52°F | 27% | 19% | 12 h 40 min |
| September 12 | 73°F | 52°F | 27% | 19% | 12 h 40 min |
| September 13 | 73°F | 51°F | 27% | 19% | 12 h 40 min |
| September 14 | 72°F | 51°F | 27% | 19% | 12 h 40 min |
| September 15 | 72°F | 51°F | 27% | 19% | 12 h 30 min |
| September 16 | 71°F | 50°F | 27% | 19% | 12 h 30 min |
| September 17 | 71°F | 50°F | 27% | 19% | 12 h 30 min |
| September 18 | 71°F | 50°F | 27% | 19% | 12 h 30 min |
| September 19 | 70°F | 49°F | 27% | 19% | 12 h 20 min |
| September 20 | 70°F | 49°F | 27% | 19% | 12 h 20 min |
| September 21 | 70°F | 48°F | 27% | 19% | 12 h 20 min |
| September 22 | 69°F | 48°F | 27% | 18% | 12 h 10 min |
| September 23 | 69°F | 48°F | 27% | 18% | 12 h 10 min |
| September 24 | 68°F | 47°F | 27% | 18% | 12 h 10 min |
| September 25 | 68°F | 47°F | 27% | 18% | 12 h 10 min |
| September 26 | 67°F | 46°F | 27% | 18% | 12 h |
| September 27 | 67°F | 46°F | 27% | 18% | 12 h |
| September 28 | 67°F | 45°F | 27% | 18% | 12 h |
| September 29 | 66°F | 45°F | 27% | 18% | 11 h 50 min |
| September 30 | 66°F | 45°F | 28% | 18% | 11 h 50 min |
- Normal high
- 71°FSeptember average
- Normal low
- 50°FSeptember average
- Precipitation
- 3.83 inmonth total
- Days with precipitation
- 80.01 inch or more
- Days at 90°F or more
- 1
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 21
- Days at 80°F or more
- 9
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00470696; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Beloit in September?
On a given September day the chance of 0.01 inch or more is 27% on average, highest around September 30 (28%). In all, 3.83 in falls on 8 days of a normal September, 1 of them with an inch or more.
In a normal September in Beloit, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00470696.
What are the records for September in Beloit?
The warmest September temperature on this station's record (since 1893) is 100°F, on September 9, 1922; the coldest is 23°F, on September 30, 1899. The wettest September brought 12.13 in (1938).
The September mean against the 1991-2020 normal of 60.8°F: 2021 66.8°F (+6.0), 2022 63.8°F (+3.0), 2023 66.0°F (+5.3), 2024 67.8°F (+7.0), 2025 66.7°F (+5.9), 2026 67.5°F (+6.7). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 66.8°F | +6.0°F | 0.86 in |
| 2022 | 63.8°F | +3.0°F | 5.13 in |
| 2023 | 66.0°F | +5.3°F | 4.19 in |
| 2024 | 67.8°F | +7.0°F | 1.11 in |
| 2025 | 66.7°F | +5.9°F | 0.55 in |
| 2026 | 67.5°F | +6.7°F | 5.19 in |
Source: records: ACIS, station USC00470696; recent months: ACIS, station USC00470696. Records and recent months use complete months only.
How does September in Beloit 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; Beloit's is 71°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.