Vail weather in September: Vail, Colorado: normal highs, lows, rain and records for September
Vail in September has a normal high of 67°F and a normal low of 34°F, a daily mean of 50°F, falling from 71°F on the 1st to 62°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 1.96 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 1°C, 50 mm of precipitation and 2 cm of snow in September.
- NOAA stationVail
- Station IDUSC00058575
- Location39.64°N 106.35°W
- Elevation8,304 ft (2,531 m)
- Population4,466
- Jan 29° 7°
- Feb 33° 9°
- Mar 42° 17°
- Apr 49° 24°
- May 60° 31°
- Jun 71° 36°
- Jul 77° 42°
- Aug 74° 41°
- Sep 67° 34°
- Oct 54° 25°
- Nov 38° 15°
- Dec 28° 7°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Vail in September?
The normal high is 67°F and the normal low 34°F, for a daily mean of 50.3°F. September is 7.1°F cooler than August and 10.6°F warmer than October. September is the 4th warmest month of the year in Vail and the 6th wettest. Across the month the normal high falls 9°F, from 71°F on September 1 to 62°F on September 30. From one year to the next September's mean temperature typically moves about 1.8°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 49°F and 52°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 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 71°F | 38°F | 34% | 21% |
| September 8 | 69°F | 36°F | 33% | 20% |
| September 15 | 67°F | 34°F | 31% | 20% |
| September 22 | 65°F | 32°F | 28% | 19% |
| September 30 | 62°F | 30°F | 25% | 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 | 71°F | 38°F | 34% | 21% | 13 h 10 min |
| September 2 | 71°F | 37°F | 34% | 20% | 13 h |
| September 3 | 70°F | 37°F | 34% | 20% | 13 h |
| September 4 | 70°F | 37°F | 34% | 20% | 13 h |
| September 5 | 70°F | 37°F | 34% | 20% | 13 h |
| September 6 | 70°F | 36°F | 33% | 20% | 12 h 50 min |
| September 7 | 69°F | 36°F | 33% | 20% | 12 h 50 min |
| September 8 | 69°F | 36°F | 33% | 20% | 12 h 50 min |
| September 9 | 69°F | 36°F | 33% | 20% | 12 h 50 min |
| September 10 | 68°F | 36°F | 33% | 20% | 12 h 40 min |
| September 11 | 68°F | 35°F | 32% | 20% | 12 h 40 min |
| September 12 | 68°F | 35°F | 32% | 20% | 12 h 40 min |
| September 13 | 68°F | 35°F | 32% | 20% | 12 h 40 min |
| September 14 | 67°F | 35°F | 31% | 20% | 12 h 30 min |
| September 15 | 67°F | 34°F | 31% | 20% | 12 h 30 min |
| September 16 | 67°F | 34°F | 31% | 20% | 12 h 30 min |
| September 17 | 66°F | 34°F | 30% | 20% | 12 h 30 min |
| September 18 | 66°F | 33°F | 30% | 19% | 12 h 20 min |
| September 19 | 66°F | 33°F | 30% | 19% | 12 h 20 min |
| September 20 | 65°F | 33°F | 29% | 19% | 12 h 20 min |
| September 21 | 65°F | 33°F | 29% | 19% | 12 h 20 min |
| September 22 | 65°F | 32°F | 28% | 19% | 12 h 10 min |
| September 23 | 64°F | 32°F | 28% | 18% | 12 h 10 min |
| September 24 | 64°F | 32°F | 27% | 18% | 12 h 10 min |
| September 25 | 64°F | 32°F | 27% | 18% | 12 h 10 min |
| September 26 | 63°F | 31°F | 27% | 18% | 12 h |
| September 27 | 63°F | 31°F | 26% | 18% | 12 h |
| September 28 | 63°F | 31°F | 26% | 18% | 12 h |
| September 29 | 62°F | 30°F | 26% | 18% | 11 h 50 min |
| September 30 | 62°F | 30°F | 25% | 18% | 11 h 50 min |
- Normal high
- 67°FSeptember average
- Normal low
- 34°FSeptember average
- Precipitation
- 1.96 inmonth total
- Days with precipitation
- 90.01 inch or more
- Snowfall
- 0.9 inmonth total
- Nights at 32°F or colder
- 12
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 12
- Days at 80°F or more
- 1
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00058575; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Vail in September?
On a given September day the chance of 0.01 inch or more is 30% on average, highest around September 1 (34%). In all, 1.96 in falls on 9 days of a normal September.
In a normal September in Vail, 12 nights fall to freezing and snowfall averages 0.9 inches.
Snow falls on 1 day in a normal September.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00058575.
What are the records for September in Vail?
The September mean against the 1991-2020 normal of 50.3°F: 2021 51.0°F (+0.7), 2022 53.0°F (+2.7), 2023 50.4°F (+0.1), 2024 53.1°F (+2.8), 2025 50.3°F (at normal), 2026 55.1°F (+4.8). 5 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 51.0°F | +0.7°F | 1.25 in |
| 2022 | 53.0°F | +2.7°F | 1.21 in |
| 2023 | 50.4°F | +0.1°F | 0.57 in |
| 2024 | 53.1°F | +2.8°F | 0.81 in |
| 2025 | 50.3°F | at normal | 2.14 in |
| 2026 | 55.1°F | +4.8°F | 1.30 in |
Source: recent months: ACIS, station USC00058575. Records and recent months use complete months only.
How does September in Vail compare across Colorado?
Across the 125 places PlainClimate covers in Colorado, September normal highs run from 62°F in Leadville to 86°F in Lamar; Vail's is 67°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.