Muncie weather in September: Muncie, Indiana: normal highs, lows, rain and records for September
Muncie in September has a normal high of 79°F and a normal low of 56°F, a daily mean of 67°F, falling from 83°F on the 1st to 74°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 3.09 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 13°C, 78 mm of precipitation in September.
- NOAA stationMuncie Delaware County Airport
- Station IDUSW00094895
- Location40.23°N 85.39°W
- Elevation937 ft (286 m)
- From the center2 miles
- Population65,320
- Jan 36° 21°
- Feb 40° 24°
- Mar 51° 33°
- Apr 64° 43°
- May 75° 54°
- Jun 83° 64°
- Jul 86° 66°
- Aug 84° 63°
- Sep 79° 56°
- Oct 66° 45°
- Nov 52° 36°
- Dec 41° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Muncie in September?
The normal high is 79°F and the normal low 56°F, for a daily mean of 67.2°F. September is 6.5°F cooler than August and 11.4°F warmer than October. September is the 4th warmest month of the year in Muncie and the 7th wettest. Across the month the normal high falls 9°F, from 83°F on September 1 to 74°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 65°F and 70°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 | 83°F | 61°F | 33% | 17% |
| September 8 | 81°F | 58°F | 33% | 17% |
| September 15 | 79°F | 56°F | 32% | 17% |
| September 22 | 77°F | 53°F | 33% | 18% |
| September 30 | 74°F | 51°F | 32% | 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 | 83°F | 61°F | 33% | 17% | 13 h 10 min |
| September 2 | 83°F | 60°F | 33% | 17% | 13 h |
| September 3 | 82°F | 60°F | 33% | 17% | 13 h |
| September 4 | 82°F | 60°F | 33% | 17% | 13 h |
| September 5 | 82°F | 59°F | 33% | 17% | 13 h |
| September 6 | 82°F | 59°F | 33% | 17% | 12 h 50 min |
| September 7 | 82°F | 59°F | 33% | 17% | 12 h 50 min |
| September 8 | 81°F | 58°F | 33% | 17% | 12 h 50 min |
| September 9 | 81°F | 58°F | 33% | 17% | 12 h 50 min |
| September 10 | 81°F | 58°F | 33% | 17% | 12 h 40 min |
| September 11 | 81°F | 57°F | 33% | 17% | 12 h 40 min |
| September 12 | 80°F | 57°F | 33% | 17% | 12 h 40 min |
| September 13 | 80°F | 57°F | 33% | 17% | 12 h 40 min |
| September 14 | 80°F | 56°F | 32% | 17% | 12 h 30 min |
| September 15 | 79°F | 56°F | 32% | 17% | 12 h 30 min |
| September 16 | 79°F | 56°F | 32% | 17% | 12 h 30 min |
| September 17 | 79°F | 55°F | 32% | 17% | 12 h 30 min |
| September 18 | 78°F | 55°F | 32% | 17% | 12 h 20 min |
| September 19 | 78°F | 55°F | 32% | 17% | 12 h 20 min |
| September 20 | 78°F | 54°F | 33% | 17% | 12 h 20 min |
| September 21 | 77°F | 54°F | 33% | 17% | 12 h 20 min |
| September 22 | 77°F | 53°F | 33% | 18% | 12 h 10 min |
| September 23 | 76°F | 53°F | 33% | 18% | 12 h 10 min |
| September 24 | 76°F | 53°F | 33% | 18% | 12 h 10 min |
| September 25 | 76°F | 52°F | 33% | 18% | 12 h 10 min |
| September 26 | 75°F | 52°F | 33% | 18% | 12 h |
| September 27 | 75°F | 52°F | 32% | 18% | 12 h |
| September 28 | 74°F | 51°F | 32% | 18% | 12 h |
| September 29 | 74°F | 51°F | 32% | 18% | 11 h 50 min |
| September 30 | 74°F | 51°F | 32% | 18% | 11 h 50 min |
- Normal high
- 79°FSeptember average
- Normal low
- 56°FSeptember average
- Precipitation
- 3.09 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 25
- Days at 80°F or more
- 13
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094895; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Muncie in September?
On a given September day the chance of 0.01 inch or more is 32% on average, highest around September 8 (33%). In all, 3.09 in falls on 10 days of a normal September, 1 of them with an inch or more.
In a normal September in Muncie, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094895.
What are the records for September in Muncie?
The warmest September temperature on this station's record (since 1962) is 96°F, on September 7, 1998; the coldest is 27°F, on September 22, 1995. The wettest September brought 10.41 in (1972).
The September mean against the 1991-2020 normal of 67.2°F: 2021 70.1°F (+2.9), 2022 67.2°F (at normal), 2023 67.7°F (+0.5), 2024 68.6°F (+1.4), 2025 67.6°F (+0.4), 2026 70.8°F (+3.6). 5 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 70.1°F | +2.9°F | 5.17 in |
| 2022 | 67.2°F | at normal | 1.42 in |
| 2023 | 67.7°F | +0.5°F | 1.46 in |
| 2024 | 68.6°F | +1.4°F | 2.38 in |
| 2025 | 67.6°F | +0.4°F | 0.83 in |
| 2026 | 70.8°F | +3.6°F | 1.43 in |
Source: records: ACIS, station USW00094895; recent months: ACIS, station USW00094895. Records and recent months use complete months only.
How does September in Muncie compare across Indiana?
Across the 99 places PlainClimate covers in Indiana, September normal highs run from 74°F in Angola to 82°F in English; Muncie's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.