Denver weather in October: Denver, Colorado: normal highs, lows, rain and records for October
Denver in October has a normal high of 65°F and a normal low of 37°F, a daily mean of 51°F, falling from 72°F on the 1st to 59°F by the 31st. Measurable precipitation falls on 5 days in a normal October, 0.99 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 3°C, 25 mm of precipitation in October.
- NOAA stationDenver International Airport
- Station IDUSW00003017
- Location39.83°N 104.66°W
- Elevation5,414 ft (1,650 m)
- From the center13 miles
- Population729,019
- Jan 45° 19°
- Feb 46° 20°
- Mar 56° 28°
- Apr 62° 34°
- May 71° 44°
- Jun 83° 53°
- Jul 90° 60°
- Aug 88° 58°
- Sep 80° 50°
- Oct 65° 37°
- Nov 53° 26°
- Dec 44° 18°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Denver in October?
The normal high is 65°F and the normal low 37°F, for a daily mean of 51.1°F. October is 13.7°F cooler than September and 11.7°F warmer than November. October is the 6th warmest month of the year in Denver and the 7th wettest. Across the month the normal high falls 13°F, from 72°F on October 1 to 59°F on October 31. From one year to the next October's mean temperature typically moves about 3.5°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 48°F and 55°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 18%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 72°F | 44°F | 18% | 9% |
| October 8 | 69°F | 40°F | 17% | 8% |
| October 15 | 66°F | 37°F | 17% | 8% |
| October 22 | 63°F | 34°F | 17% | 8% |
| October 31 | 59°F | 31°F | 17% | 7% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 72°F | 44°F | 18% | 9% | 11 h 50 min |
| October 2 | 72°F | 43°F | 18% | 9% | 11 h 50 min |
| October 3 | 71°F | 43°F | 18% | 9% | 11 h 40 min |
| October 4 | 71°F | 42°F | 18% | 9% | 11 h 40 min |
| October 5 | 70°F | 42°F | 18% | 8% | 11 h 40 min |
| October 6 | 70°F | 41°F | 18% | 8% | 11 h 40 min |
| October 7 | 69°F | 41°F | 18% | 8% | 11 h 30 min |
| October 8 | 69°F | 40°F | 17% | 8% | 11 h 30 min |
| October 9 | 68°F | 40°F | 17% | 8% | 11 h 30 min |
| October 10 | 68°F | 39°F | 17% | 8% | 11 h 30 min |
| October 11 | 67°F | 39°F | 17% | 8% | 11 h 20 min |
| October 12 | 67°F | 38°F | 17% | 8% | 11 h 20 min |
| October 13 | 66°F | 38°F | 17% | 8% | 11 h 20 min |
| October 14 | 66°F | 38°F | 17% | 8% | 11 h 20 min |
| October 15 | 66°F | 37°F | 17% | 8% | 11 h 10 min |
| October 16 | 65°F | 37°F | 17% | 8% | 11 h 10 min |
| October 17 | 65°F | 36°F | 17% | 8% | 11 h 10 min |
| October 18 | 64°F | 36°F | 17% | 8% | 11 h 10 min |
| October 19 | 64°F | 36°F | 17% | 8% | 11 h |
| October 20 | 63°F | 35°F | 17% | 8% | 11 h |
| October 21 | 63°F | 35°F | 17% | 8% | 11 h |
| October 22 | 63°F | 34°F | 17% | 8% | 11 h |
| October 23 | 62°F | 34°F | 17% | 8% | 10 h 50 min |
| October 24 | 62°F | 34°F | 17% | 8% | 10 h 50 min |
| October 25 | 61°F | 33°F | 17% | 8% | 10 h 50 min |
| October 26 | 61°F | 33°F | 17% | 8% | 10 h 50 min |
| October 27 | 61°F | 33°F | 17% | 8% | 10 h 40 min |
| October 28 | 60°F | 32°F | 17% | 8% | 10 h 40 min |
| October 29 | 60°F | 32°F | 17% | 7% | 10 h 40 min |
| October 30 | 60°F | 32°F | 17% | 7% | 10 h 40 min |
| October 31 | 59°F | 31°F | 17% | 7% | 10 h 30 min |
- Normal high
- 65°FOctober average
- Normal low
- 37°FOctober average
- Precipitation
- 0.99 inmonth total
- Days with precipitation
- 50.01 inch or more
- Nights at 32°F or colder
- 9
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 13
- Days at 80°F or more
- 5
- Sunshine
- 82%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00003017; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Denver in October?
On a given October day the chance of 0.01 inch or more is 17% on average, highest around October 1 (18%). In all, 0.99 in falls on 5 days of a normal October.
In a normal October in Denver, 9 nights fall to freezing and 1 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00003017.
How humid and windy is Denver in October?
At 3 p.m. the normal temperature is 56°F with 28% relative humidity and a dew point of 24°F; at 6 a.m. it is 37°F with 58% humidity. The wind averages 9.5 mph, most often from the north-northeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 37°F | 24°F | 58% | 9.6 mph | – |
| 9 a.m. | 46°F | 26°F | 45% | 9.4 mph | – |
| noon | 54°F | 24°F | 31% | 9.3 mph | – |
| 3 p.m. | 56°F | 24°F | 28% | 10.1 mph | – |
| 6 p.m. | 46°F | 26°F | 45% | 9.2 mph | – |
| 9 p.m. | 41°F | 26°F | 53% | 9.8 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00003017. 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 October in Denver?
The warmest October temperature on Denver's official record (since 1872) is 90°F, on October 1, 1892; the coldest is −2°F, on October 29, 1917. The wettest October brought 4.17 in (1969); the snowiest, 31.2 inches (1969).
The October mean against the 1991-2020 normal of 51.1°F: 2021 53.9°F (+2.8), 2022 53.8°F (+2.7), 2023 52.5°F (+1.4), 2024 59.1°F (+8.0), 2025 53.5°F (+2.4). 5 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 53.9°F | +2.8°F | 0.08 in |
| 2022 | 53.8°F | +2.7°F | 0.46 in |
| 2023 | 52.5°F | +1.4°F | 0.52 in |
| 2024 | 59.1°F | +8.0°F | 0.11 in |
| 2025 | 53.5°F | +2.4°F | 0.14 in |
Source: records: ACIS, NWS threaded record DENthr; recent months: ACIS, station USW00003017. Records and recent months use complete months only.
How does October in Denver compare across Colorado?
Across the 125 places PlainClimate covers in Colorado, October normal highs run from 50°F in Leadville to 72°F in Rocky Ford; Denver's is 65°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.