Estes Park weather in September: Estes Park, Colorado: normal highs, lows, rain and records for September
Estes Park in September has a normal high of 70°F and a normal low of 39°F, a daily mean of 54°F, falling from 75°F on the 1st to 64°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 1.65 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 4°C, 42 mm of precipitation and 1 cm of snow in September.
- NOAA stationEstes Park (3 mi SSE)
- Station IDUSC00052761
- Location40.35°N 105.52°W
- Elevation7,812 ft (2,381 m)
- Population5,795
- Jan 37° 16°
- Feb 38° 16°
- Mar 45° 21°
- Apr 52° 26°
- May 61° 35°
- Jun 74° 43°
- Jul 80° 48°
- Aug 78° 46°
- Sep 70° 39°
- Oct 57° 30°
- Nov 44° 24°
- Dec 36° 16°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Estes Park in September?
The normal high is 70°F and the normal low 39°F, for a daily mean of 54.4°F. September is 7.6°F cooler than August and 11.0°F warmer than October. September is the 4th warmest month of the year in Estes Park and the 5th wettest. Across the month the normal high falls 11°F, from 75°F on September 1 to 64°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 52°F and 57°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 36%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 75°F | 43°F | 36% | 14% |
| September 8 | 73°F | 41°F | 33% | 13% |
| September 15 | 70°F | 40°F | 30% | 12% |
| September 22 | 67°F | 37°F | 28% | 11% |
| September 30 | 64°F | 35°F | 26% | 10% |
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 | 75°F | 43°F | 36% | 14% | 13 h 10 min |
| September 2 | 74°F | 43°F | 35% | 14% | 13 h 10 min |
| September 3 | 74°F | 43°F | 35% | 14% | 13 h |
| September 4 | 74°F | 42°F | 34% | 13% | 13 h |
| September 5 | 73°F | 42°F | 34% | 13% | 13 h |
| September 6 | 73°F | 42°F | 34% | 13% | 12 h 50 min |
| September 7 | 73°F | 42°F | 33% | 13% | 12 h 50 min |
| September 8 | 73°F | 41°F | 33% | 13% | 12 h 50 min |
| September 9 | 72°F | 41°F | 33% | 13% | 12 h 50 min |
| September 10 | 72°F | 41°F | 32% | 13% | 12 h 40 min |
| September 11 | 72°F | 41°F | 32% | 13% | 12 h 40 min |
| September 12 | 71°F | 40°F | 31% | 12% | 12 h 40 min |
| September 13 | 71°F | 40°F | 31% | 12% | 12 h 40 min |
| September 14 | 71°F | 40°F | 31% | 12% | 12 h 30 min |
| September 15 | 70°F | 40°F | 30% | 12% | 12 h 30 min |
| September 16 | 70°F | 39°F | 30% | 12% | 12 h 30 min |
| September 17 | 69°F | 39°F | 30% | 12% | 12 h 30 min |
| September 18 | 69°F | 39°F | 29% | 12% | 12 h 20 min |
| September 19 | 69°F | 38°F | 29% | 12% | 12 h 20 min |
| September 20 | 68°F | 38°F | 29% | 11% | 12 h 20 min |
| September 21 | 68°F | 38°F | 28% | 11% | 12 h 20 min |
| September 22 | 67°F | 37°F | 28% | 11% | 12 h 10 min |
| September 23 | 67°F | 37°F | 28% | 11% | 12 h 10 min |
| September 24 | 66°F | 37°F | 27% | 11% | 12 h 10 min |
| September 25 | 66°F | 36°F | 27% | 11% | 12 h 10 min |
| September 26 | 66°F | 36°F | 27% | 11% | 12 h |
| September 27 | 65°F | 36°F | 26% | 11% | 12 h |
| September 28 | 65°F | 35°F | 26% | 10% | 12 h |
| September 29 | 64°F | 35°F | 26% | 10% | 11 h 50 min |
| September 30 | 64°F | 35°F | 26% | 10% | 11 h 50 min |
- Normal high
- 70°FSeptember average
- Normal low
- 39°FSeptember average
- Precipitation
- 1.65 inmonth total
- Days with precipitation
- 90.01 inch or more
- Snowfall
- 0.5 inmonth total
- Nights at 32°F or colder
- 4
- Daylight
- 13 h 10 min to 11 h 50 minSeptember 1 to September 30
- Days at 70°F or more
- 17
- Days at 80°F or more
- 3
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00052761; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Estes Park in September?
On a given September day the chance of 0.01 inch or more is 30% on average, highest around September 1 (36%). In all, 1.65 in falls on 9 days of a normal September.
In a normal September in Estes Park, 4 nights fall to freezing and snowfall averages 0.5 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00052761.
How does September in Estes Park 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; Estes Park's is 70°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.