Youngstown weather in September: Youngstown, Ohio: normal highs, lows, rain and records for September
Youngstown in September has a normal high of 74°F and a normal low of 52°F, a daily mean of 63°F, falling from 79°F on the 1st to 69°F by the 30th. Measurable precipitation falls on 10 days in a normal September, 3.84 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 24°C and low of 11°C, 98 mm of precipitation in September.
- NOAA stationYoungstown Regional Airport
- Station IDUSW00014852
- Location41.25°N 80.67°W
- Elevation1,180 ft (360 m)
- From the center11 miles
- Population59,123
- Jan 34° 19°
- Feb 37° 21°
- Mar 47° 28°
- Apr 60° 38°
- May 71° 48°
- Jun 79° 56°
- Jul 83° 60°
- Aug 81° 59°
- Sep 74° 52°
- Oct 62° 42°
- Nov 50° 33°
- Dec 39° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Youngstown in September?
The normal high is 74°F and the normal low 52°F, for a daily mean of 63.2°F. September is 6.7°F cooler than August and 11.0°F warmer than October. September is the 4th warmest month of the year in Youngstown and the 3rd wettest. Across the month the normal high falls 10°F, from 79°F on September 1 to 69°F on September 30. From one year to the next September's mean temperature typically moves about 2.5°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 61°F and 66°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 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 79°F | 56°F | 32% | 20% |
| September 8 | 77°F | 55°F | 32% | 21% |
| September 15 | 75°F | 52°F | 33% | 21% |
| September 22 | 72°F | 50°F | 35% | 22% |
| September 30 | 69°F | 47°F | 37% | 23% |
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 | 32% | 20% | 13 h 10 min |
| September 2 | 79°F | 56°F | 32% | 20% | 13 h 10 min |
| September 3 | 78°F | 56°F | 32% | 20% | 13 h |
| September 4 | 78°F | 56°F | 32% | 20% | 13 h |
| September 5 | 78°F | 55°F | 32% | 20% | 13 h |
| September 6 | 78°F | 55°F | 32% | 20% | 13 h |
| September 7 | 77°F | 55°F | 32% | 21% | 12 h 50 min |
| September 8 | 77°F | 55°F | 32% | 21% | 12 h 50 min |
| September 9 | 77°F | 54°F | 33% | 21% | 12 h 50 min |
| September 10 | 77°F | 54°F | 33% | 21% | 12 h 50 min |
| September 11 | 76°F | 54°F | 33% | 21% | 12 h 40 min |
| September 12 | 76°F | 53°F | 33% | 21% | 12 h 40 min |
| September 13 | 76°F | 53°F | 33% | 21% | 12 h 40 min |
| September 14 | 75°F | 53°F | 33% | 21% | 12 h 40 min |
| September 15 | 75°F | 52°F | 33% | 21% | 12 h 30 min |
| September 16 | 74°F | 52°F | 34% | 21% | 12 h 30 min |
| September 17 | 74°F | 52°F | 34% | 21% | 12 h 30 min |
| September 18 | 74°F | 51°F | 34% | 21% | 12 h 20 min |
| September 19 | 73°F | 51°F | 34% | 21% | 12 h 20 min |
| September 20 | 73°F | 51°F | 34% | 22% | 12 h 20 min |
| September 21 | 73°F | 50°F | 35% | 22% | 12 h 20 min |
| September 22 | 72°F | 50°F | 35% | 22% | 12 h 10 min |
| September 23 | 72°F | 50°F | 35% | 22% | 12 h 10 min |
| September 24 | 71°F | 49°F | 35% | 22% | 12 h 10 min |
| September 25 | 71°F | 49°F | 36% | 22% | 12 h 10 min |
| September 26 | 70°F | 49°F | 36% | 22% | 12 h |
| September 27 | 70°F | 48°F | 36% | 23% | 12 h |
| September 28 | 70°F | 48°F | 37% | 23% | 12 h |
| September 29 | 69°F | 48°F | 37% | 23% | 11 h 50 min |
| September 30 | 69°F | 47°F | 37% | 23% | 11 h 50 min |
- Normal high
- 74°FSeptember average
- Normal low
- 52°FSeptember average
- Precipitation
- 3.84 inmonth total
- Days with precipitation
- 100.01 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
- 8
- Sunshine
- 74%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014852; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Youngstown in September?
On a given September day the chance of 0.01 inch or more is 34% on average, highest around September 30 (37%). In all, 3.84 in falls on 10 days of a normal September, 1 of them with an inch or more.
In a normal September in Youngstown, 1 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014852.
How humid and windy is Youngstown in September?
At 3 p.m. the normal temperature is 66°F with 55% relative humidity and a dew point of 50°F; at 6 a.m. it is 51°F with 89% humidity. The wind averages 7.6 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. | 51°F | 48°F | 89% | 6.7 mph | – |
| 9 a.m. | 57°F | 50°F | 77% | 8.3 mph | – |
| noon | 64°F | 50°F | 60% | 9.7 mph | – |
| 3 p.m. | 66°F | 50°F | 55% | 9.6 mph | – |
| 6 p.m. | 61°F | 50°F | 68% | 6.7 mph | 31% |
| 9 p.m. | 56°F | 50°F | 81% | 6.4 mph | 40% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014852. 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 Youngstown?
The warmest September temperature on Youngstown's official record (since 1897) is 99°F, on September 5, 1954; the coldest is 27°F, on September 29, 1942. The wettest September brought 7.91 in (2018).
The September mean against the 1991-2020 normal of 63.2°F: 2021 65.3°F (+2.1), 2022 63.9°F (+0.7), 2023 64.9°F (+1.7), 2024 66.4°F (+3.2), 2025 64.9°F (+1.7), 2026 66.3°F (+3.1). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 65.3°F | +2.1°F | 1.30 in |
| 2022 | 63.9°F | +0.7°F | 2.82 in |
| 2023 | 64.9°F | +1.7°F | 0.78 in |
| 2024 | 66.4°F | +3.2°F | 3.93 in |
| 2025 | 64.9°F | +1.7°F | 2.58 in |
| 2026 | 66.3°F | +3.1°F | 4.96 in |
Source: records: ACIS, NWS threaded record YNGthr; recent months: ACIS, station USW00014852. Records and recent months use complete months only.
How does September in Youngstown compare across Ohio?
Across the 99 places PlainClimate covers in Ohio, September normal highs run from 73°F in Ashtabula to 81°F in Chilo; Youngstown's is 74°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.