Evergreen weather in September: Evergreen, Colorado: normal highs, lows, rain and records for September
Evergreen in September has a normal high of 73°F and a normal low of 40°F, a daily mean of 56°F, falling from 77°F on the 1st to 67°F by the 30th. Measurable precipitation falls on 8 days in a normal September, 1.55 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 23°C and low of 4°C, 39 mm of precipitation and 3 cm of snow in September.
- NOAA stationEvergreen
- Station IDUSC00052790
- Location39.64°N 105.31°W
- Elevation6,985 ft (2,129 m)
- Population (census place)8,643
- Jan 44° 13°
- Feb 44° 13°
- Mar 51° 21°
- Apr 56° 27°
- May 64° 36°
- Jun 76° 43°
- Jul 81° 49°
- Aug 79° 47°
- Sep 73° 40°
- Oct 61° 29°
- Nov 51° 20°
- Dec 44° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Evergreen in September?
The normal high is 73°F and the normal low 40°F, for a daily mean of 56.0°F. September is 7.2°F cooler than August and 11.1°F warmer than October. September is the 4th warmest month of the year in Evergreen and the 7th wettest. Across the month the normal high falls 10°F, from 77°F on September 1 to 67°F on September 30. From one year to the next September's mean temperature typically moves about 2.1°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 54°F and 58°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 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 77°F | 44°F | 32% | 16% |
| September 8 | 75°F | 42°F | 29% | 14% |
| September 15 | 73°F | 40°F | 26% | 13% |
| September 22 | 70°F | 37°F | 23% | 12% |
| September 30 | 67°F | 34°F | 20% | 11% |
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 | 77°F | 44°F | 32% | 16% | 13 h 10 min |
| September 2 | 77°F | 44°F | 31% | 16% | 13 h |
| September 3 | 76°F | 44°F | 31% | 15% | 13 h |
| September 4 | 76°F | 43°F | 31% | 15% | 13 h |
| September 5 | 76°F | 43°F | 30% | 15% | 13 h |
| September 6 | 76°F | 43°F | 30% | 15% | 12 h 50 min |
| September 7 | 75°F | 42°F | 29% | 15% | 12 h 50 min |
| September 8 | 75°F | 42°F | 29% | 14% | 12 h 50 min |
| September 9 | 75°F | 42°F | 29% | 14% | 12 h 50 min |
| September 10 | 75°F | 42°F | 28% | 14% | 12 h 40 min |
| September 11 | 74°F | 41°F | 28% | 14% | 12 h 40 min |
| September 12 | 74°F | 41°F | 27% | 14% | 12 h 40 min |
| September 13 | 74°F | 41°F | 27% | 13% | 12 h 40 min |
| September 14 | 73°F | 40°F | 26% | 13% | 12 h 30 min |
| September 15 | 73°F | 40°F | 26% | 13% | 12 h 30 min |
| September 16 | 73°F | 40°F | 25% | 13% | 12 h 30 min |
| September 17 | 72°F | 39°F | 25% | 13% | 12 h 30 min |
| September 18 | 72°F | 39°F | 24% | 12% | 12 h 20 min |
| September 19 | 72°F | 39°F | 24% | 12% | 12 h 20 min |
| September 20 | 71°F | 38°F | 24% | 12% | 12 h 20 min |
| September 21 | 71°F | 38°F | 23% | 12% | 12 h 20 min |
| September 22 | 70°F | 37°F | 23% | 12% | 12 h 10 min |
| September 23 | 70°F | 37°F | 22% | 11% | 12 h 10 min |
| September 24 | 70°F | 37°F | 22% | 11% | 12 h 10 min |
| September 25 | 69°F | 36°F | 22% | 11% | 12 h 10 min |
| September 26 | 69°F | 36°F | 21% | 11% | 12 h |
| September 27 | 68°F | 35°F | 21% | 11% | 12 h |
| September 28 | 68°F | 35°F | 21% | 11% | 12 h |
| September 29 | 68°F | 35°F | 20% | 11% | 11 h 50 min |
| September 30 | 67°F | 34°F | 20% | 11% | 11 h 50 min |
- Normal high
- 73°FSeptember average
- Normal low
- 40°FSeptember average
- Precipitation
- 1.55 inmonth total
- Days with precipitation
- 80.01 inch or more
- Snowfall
- 1.1 inmonth total
- Nights at 32°F or colder
- 5
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 22
- Days at 80°F or more
- 9
- Sunshine
- 81%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00052790; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Evergreen in September?
On a given September day the chance of 0.01 inch or more is 26% on average, highest around September 1 (32%). In all, 1.55 in falls on 8 days of a normal September.
In a normal September in Evergreen, 5 nights fall to freezing and snowfall averages 1.1 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00052790.
What are the records for September in Evergreen?
The warmest September temperature on this station's record (since 1961) is 92°F, on September 2, 1995; the coldest is 8°F, on September 30, 1985. The wettest September brought 7.18 in (2013); the snowiest, 12.5 inches (1971).
The September mean against the 1991-2020 normal of 56.0°F: 2021 58.9°F (+2.9), 2022 58.5°F (+2.5), 2023 57.1°F (+1.1), 2024 58.4°F (+2.4), 2026 61.1°F (+5.1). 5 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 58.9°F | +2.9°F | 0.92 in |
| 2022 | 58.5°F | +2.5°F | 0.46 in |
| 2023 | 57.1°F | +1.1°F | 1.42 in |
| 2024 | 58.4°F | +2.4°F | 1.66 in |
| 2026 | 61.1°F | +5.1°F | 1.59 in |
Source: records: ACIS, station USC00052790; recent months: ACIS, station USC00052790. Records and recent months use complete months only.
How does September in Evergreen 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; Evergreen's is 73°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.