Mount Airy weather in September: Mount Airy, North Carolina: normal highs, lows, rain and records for September
Mount Airy in September has a normal high of 79°F and a normal low of 56°F, a daily mean of 68°F, falling from 83°F on the 1st to 75°F by the 30th. Measurable precipitation falls on 11 days in a normal September, 4.26 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 13°C, 108 mm of precipitation in September.
- NOAA stationMount Airy (2 mi W)
- Station IDUSC00315890
- Location36.50°N 80.65°W
- Elevation1,080 ft (329 m)
- From the center2 miles
- Population10,583
- Jan 47° 25°
- Feb 51° 27°
- Mar 58° 33°
- Apr 69° 41°
- May 76° 50°
- Jun 83° 59°
- Jul 86° 63°
- Aug 85° 62°
- Sep 79° 56°
- Oct 70° 43°
- Nov 59° 33°
- Dec 50° 28°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Mount Airy in September?
The normal high is 79°F and the normal low 56°F, for a daily mean of 67.5°F. September is 6.0°F cooler than August and 11.0°F warmer than October. September is the 4th warmest month of the year in Mount Airy and the 6th wettest. Across the month the normal high falls 8°F, from 83°F on September 1 to 75°F on September 30. From one year to the next September's mean temperature typically moves about 2.3°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 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 83°F | 60°F | 37% | 23% |
| September 8 | 82°F | 58°F | 36% | 22% |
| September 15 | 80°F | 56°F | 35% | 21% |
| September 22 | 77°F | 54°F | 34% | 21% |
| September 30 | 75°F | 50°F | 33% | 20% |
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 | 60°F | 37% | 23% | 13 h |
| September 2 | 83°F | 60°F | 37% | 23% | 13 h |
| September 3 | 83°F | 60°F | 37% | 23% | 13 h |
| September 4 | 83°F | 59°F | 37% | 23% | 12 h 50 min |
| September 5 | 82°F | 59°F | 36% | 23% | 12 h 50 min |
| September 6 | 82°F | 59°F | 36% | 22% | 12 h 50 min |
| September 7 | 82°F | 59°F | 36% | 22% | 12 h 50 min |
| September 8 | 82°F | 58°F | 36% | 22% | 12 h 40 min |
| September 9 | 81°F | 58°F | 35% | 22% | 12 h 40 min |
| September 10 | 81°F | 58°F | 35% | 22% | 12 h 40 min |
| September 11 | 81°F | 57°F | 35% | 21% | 12 h 40 min |
| September 12 | 81°F | 57°F | 35% | 21% | 12 h 30 min |
| September 13 | 80°F | 57°F | 35% | 21% | 12 h 30 min |
| September 14 | 80°F | 57°F | 35% | 21% | 12 h 30 min |
| September 15 | 80°F | 56°F | 35% | 21% | 12 h 30 min |
| September 16 | 79°F | 56°F | 35% | 21% | 12 h 30 min |
| September 17 | 79°F | 56°F | 34% | 21% | 12 h 20 min |
| September 18 | 79°F | 55°F | 34% | 21% | 12 h 20 min |
| September 19 | 78°F | 55°F | 34% | 21% | 12 h 20 min |
| September 20 | 78°F | 54°F | 34% | 21% | 12 h 20 min |
| September 21 | 78°F | 54°F | 34% | 21% | 12 h 10 min |
| September 22 | 77°F | 54°F | 34% | 21% | 12 h 10 min |
| September 23 | 77°F | 53°F | 34% | 21% | 12 h 10 min |
| September 24 | 77°F | 53°F | 34% | 21% | 12 h 10 min |
| September 25 | 77°F | 53°F | 34% | 21% | 12 h 10 min |
| September 26 | 76°F | 52°F | 34% | 21% | 12 h |
| September 27 | 76°F | 52°F | 34% | 21% | 12 h |
| September 28 | 76°F | 51°F | 33% | 20% | 12 h |
| September 29 | 75°F | 51°F | 33% | 20% | 12 h |
| September 30 | 75°F | 50°F | 33% | 20% | 11 h 50 min |
- Normal high
- 79°FSeptember average
- Normal low
- 56°FSeptember average
- Precipitation
- 4.26 inmonth total
- Days with precipitation
- 110.01 inch or more
- Days at 90°F or more
- 3
- Daylight
- 13 h to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 27
- Days at 80°F or more
- 17
- Sunshine
- 75%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00315890; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Mount Airy in September?
On a given September day the chance of 0.01 inch or more is 35% on average, highest around September 1 (37%). In all, 4.26 in falls on 11 days of a normal September, 1 of them with an inch or more.
In a normal September in Mount Airy, 3 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00315890.
What are the records for September in Mount Airy?
The warmest September temperature on this station's record (since 1893) is 101°F, on September 6, 1954; the coldest is 32°F, on September 24, 1918. The wettest September brought 10.55 in (1975).
The September mean against the 1991-2020 normal of 67.5°F: 2021 67.7°F (+0.2), 2022 67.1°F (−0.4), 2023 68.3°F (+0.8), 2024 68.5°F (+1.0), 2025 67.4°F (−0.1), 2026 72.8°F (+5.3). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 67.7°F | +0.2°F | 4.99 in |
| 2022 | 67.1°F | −0.4°F | 2.09 in |
| 2023 | 68.3°F | +0.8°F | 3.74 in |
| 2024 | 68.5°F | +1.0°F | 9.14 in |
| 2025 | 67.4°F | −0.1°F | 3.23 in |
| 2026 | 72.8°F | +5.3°F | 2.37 in |
Source: records: ACIS, station USC00315890; recent months: ACIS, station USC00315890. Records and recent months use complete months only.
How does September in Mount Airy compare across North Carolina?
Across the 131 places PlainClimate covers in North Carolina, September normal highs run from 63°F in Beech Mountain to 87°F in Southport; Mount Airy's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Mount Airy in August85°F by day, 62°F at night
- Mount Airy in October70°F by day, 43°F at night
- Mount Airy through the yearEvery month, frost dates, records and recent years
- North Carolina in SeptemberThe statewide normal and the warmest and coolest places
- Southport: North Carolina's warmest Septembernormal high 87°F