Fountain weather in October
In October, Fountain sees average daytime highs of 61°F and overnight lows near 34°F, with 1.2 in of precipitation across 5.5 wet days and about 11 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.
Highs ease over the month, from about 67°F in the first days to 55°F by the end. The sky is clear or mostly clear about 58% of the time in October, and the air most often feels dry.
Daylight stretches from about 11 h 36 min at the start of October to 10 h 24 min by month's end. Set against the rest of the year, October is Fountain's 2nd-clearest and 5th-windiest month. For the whole year in context, see Fountain's year-round climate.
- Daytime high
- 61°
- 6th warmest
- Overnight low
- 34°
- 7th coldest
- Precipitation
- 1.2 in
- 5.5 wet days
- Daylight
- 11 hours
- 6:15 AM – 5:13 PM
- Cloud cover
- 37%
- 2nd clearest
- Wind
- 5 mph
- 5th windiest
- Solar energy
- 4.31 kWh/m²
- Travel score
- 6.0
- out of 10
Fountain is city in El Paso County, Colorado, United States.
- Density
- 446/km²
- people per km²
- Founded
- 1859
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in October
Highs ease over the month, from about 67°F in the first days to 55°F by the end.
A typical October day in Fountain reaches about 61°F in the afternoon and slips back to 34°F overnight — a 27°F spread between the day's warmth and the night's chill. On most days the high lands between 46°F and 74°F. Set against its neighbours, October runs about 12°F cooler than September and about 13°F warmer than November.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 68 | 67 | 67 | 67 | 66 | 66 | 65 | 65 | 64 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 61 | 61 | 60 | 60 | 59 | 59 | 58 | 58 | 57 | 57 | 56 | 56 | 55 | 55 | 54 |
| Avg low (°F) | 40 | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 30 | 29 | 29 | 29 | 28 | 28 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 68 | 40 |
| 2 | 67 | 40 |
| 3 | 67 | 40 |
| 4 | 67 | 39 |
| 5 | 66 | 39 |
| 6 | 66 | 38 |
| 7 | 65 | 38 |
| 8 | 65 | 37 |
| 9 | 64 | 37 |
| 10 | 64 | 36 |
| 11 | 64 | 36 |
| 12 | 63 | 36 |
| 13 | 63 | 35 |
| 14 | 63 | 35 |
| 15 | 62 | 34 |
| 16 | 62 | 34 |
| 17 | 61 | 33 |
| 18 | 61 | 33 |
| 19 | 60 | 33 |
| 20 | 60 | 32 |
| 21 | 59 | 32 |
| 22 | 59 | 31 |
| 23 | 58 | 31 |
| 24 | 58 | 31 |
| 25 | 57 | 30 |
| 26 | 57 | 30 |
| 27 | 56 | 29 |
| 28 | 56 | 29 |
| 29 | 55 | 29 |
| 30 | 55 | 28 |
| 31 | 54 | 28 |
How October really feels in Fountain
Once humidity and wind are folded in, October averages 0 days that feel above 90°F and 22 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in October is cold — wind chill drags the overnight "feels like" below the raw low.
Fountain weather by month
How October compares with the rest of the year at a glance. October is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 41° / 16° | 0.6 | 3.9 | 4.2 | 9.6 | 0.0 |
| Feb | 43° / 18° | 0.6 | 4.7 | 4.7 | 10.5 | 0.5 |
| Mar | 51° / 24° | 1.6 | 7.3 | 5.7 | 11.7 | 2.6 |
| Apr | 57° / 30° | 2.5 | 9.8 | 5.4 | 13 | 4.1 |
| May | 67° / 40° | 2.7 | 12 | 1.4 | 14.1 | 5.9 |
| Jun | 78° / 49° | 2.0 | 10.8 | 0 | 14.7 | 6.7 |
| Jul | 82° / 55° | 2.8 | 12.2 | 0 | 14.4 | 6.0 |
| Aug | 80° / 53° | 2.5 | 11.8 | 0 | 13.5 | 6.6 |
| Sep | 73° / 46° | 1.3 | 6.3 | 0.4 | 12.3 | 7.6 |
| Oct | 61° / 34° | 1.2 | 5.5 | 2 | 11 | 6.0 |
| Nov | 49° / 23° | 0.8 | 5 | 4.4 | 9.9 | 2.3 |
| Dec | 40° / 16° | 0.5 | 3.5 | 3.9 | 9.3 | 0.1 |
Cloud cover in October
The sky is clear or mostly clear about 58% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 26%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 75 | 75 | 76 | 76 | 76 | 75 | 75 | 75 | 76 | 77 | 77 | 77 | 77 | 77 | 76 | 76 | 76 | 75 | 75 | 74 | 73 | 72 | 72 | 71 | 70 | 70 | 70 | 70 | 70 | 71 | 71 |
| Cloudier (%) | 25 | 25 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 25 | 25 | 26 | 27 | 28 | 28 | 29 | 30 | 30 | 30 | 30 | 30 | 29 | 29 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 75 | 25 |
| 2 | 75 | 25 |
| 3 | 76 | 24 |
| 4 | 76 | 24 |
| 5 | 76 | 24 |
| 6 | 75 | 25 |
| 7 | 75 | 25 |
| 8 | 75 | 25 |
| 9 | 76 | 24 |
| 10 | 77 | 23 |
| 11 | 77 | 23 |
| 12 | 77 | 23 |
| 13 | 77 | 23 |
| 14 | 77 | 23 |
| 15 | 76 | 24 |
| 16 | 76 | 24 |
| 17 | 76 | 24 |
| 18 | 75 | 25 |
| 19 | 75 | 25 |
| 20 | 74 | 26 |
| 21 | 73 | 27 |
| 22 | 72 | 28 |
| 23 | 72 | 28 |
| 24 | 71 | 29 |
| 25 | 70 | 30 |
| 26 | 70 | 30 |
| 27 | 70 | 30 |
| 28 | 70 | 30 |
| 29 | 70 | 30 |
| 30 | 71 | 29 |
| 31 | 71 | 29 |
Chance of precipitation in October
Fountain gets around 1.2 in of rain and snow over 5.5 wet days in October. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 17% and peaks near 19% on the wettest days, and about 2 days bring snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 18 |
| Snow chance (%) | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 12 | 12 | 12 | 12 | 12 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 18 | 2 |
| 2 | 18 | 2 |
| 3 | 18 | 2 |
| 4 | 18 | 2 |
| 5 | 17 | 2 |
| 6 | 17 | 3 |
| 7 | 17 | 3 |
| 8 | 17 | 3 |
| 9 | 17 | 3 |
| 10 | 17 | 4 |
| 11 | 16 | 4 |
| 12 | 16 | 4 |
| 13 | 16 | 5 |
| 14 | 16 | 5 |
| 15 | 15 | 5 |
| 16 | 15 | 6 |
| 17 | 15 | 6 |
| 18 | 16 | 7 |
| 19 | 16 | 7 |
| 20 | 16 | 8 |
| 21 | 17 | 8 |
| 22 | 17 | 9 |
| 23 | 18 | 10 |
| 24 | 18 | 10 |
| 25 | 18 | 11 |
| 26 | 19 | 11 |
| 27 | 19 | 12 |
| 28 | 19 | 12 |
| 29 | 19 | 12 |
| 30 | 19 | 12 |
| 31 | 18 | 12 |
Humidity in October
Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Dry (%) | |
|---|---|
| 1 | 100 |
| 2 | 100 |
| 3 | 100 |
| 4 | 100 |
| 5 | 100 |
| 6 | 100 |
| 7 | 100 |
| 8 | 100 |
| 9 | 100 |
| 10 | 100 |
| 11 | 100 |
| 12 | 100 |
| 13 | 100 |
| 14 | 100 |
| 15 | 100 |
| 16 | 100 |
| 17 | 100 |
| 18 | 100 |
| 19 | 100 |
| 20 | 100 |
| 21 | 100 |
| 22 | 100 |
| 23 | 100 |
| 24 | 100 |
| 25 | 100 |
| 26 | 100 |
| 27 | 100 |
| 28 | 100 |
| 29 | 100 |
| 30 | 100 |
| 31 | 100 |
Wind in October
Winds average 5 mph in October.
Across October, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
| 31 | 5 | calm |
Sunrise & sunset in October
Daylight runs from about 11 h 36 min at the start of October to 10 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 72 minutes over October. Sunrise moves from 6:00 AM to 6:31 AM, and sunset from 5:36 PM to 4:54 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 11.6 | 11.6 | 11.5 | 11.5 | 11.4 | 11.4 | 11.3 | 11.3 | 11.3 | 11.2 | 11.2 | 11.1 | 11.1 | 11.1 | 11.0 | 11.0 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.6 | 10.6 | 10.5 | 10.5 | 10.5 | 10.4 | 10.4 |
| Sunrise (AM) | 6:00 | 6:01 | 6:02 | 6:03 | 6:04 | 6:05 | 6:06 | 6:07 | 6:08 | 6:09 | 6:10 | 6:11 | 6:12 | 6:13 | 6:14 | 6:15 | 6:16 | 6:17 | 6:18 | 6:19 | 6:20 | 6:21 | 6:22 | 6:23 | 6:24 | 6:25 | 6:26 | 6:27 | 6:29 | 6:30 | 6:31 |
| Sunset (PM) | 5:36 | 5:34 | 5:33 | 5:31 | 5:30 | 5:28 | 5:26 | 5:25 | 5:23 | 5:22 | 5:20 | 5:19 | 5:17 | 5:16 | 5:14 | 5:13 | 5:12 | 5:10 | 5:09 | 5:08 | 5:06 | 5:05 | 5:04 | 5:02 | 5:01 | 5:00 | 4:59 | 4:57 | 4:56 | 4:55 | 4:54 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.6 | 6:00 | 5:36 |
| 2 | 11.6 | 6:01 | 5:34 |
| 3 | 11.5 | 6:02 | 5:33 |
| 4 | 11.5 | 6:03 | 5:31 |
| 5 | 11.4 | 6:04 | 5:30 |
| 6 | 11.4 | 6:05 | 5:28 |
| 7 | 11.3 | 6:06 | 5:26 |
| 8 | 11.3 | 6:07 | 5:25 |
| 9 | 11.3 | 6:08 | 5:23 |
| 10 | 11.2 | 6:09 | 5:22 |
| 11 | 11.2 | 6:10 | 5:20 |
| 12 | 11.1 | 6:11 | 5:19 |
| 13 | 11.1 | 6:12 | 5:17 |
| 14 | 11.1 | 6:13 | 5:16 |
| 15 | 11.0 | 6:14 | 5:14 |
| 16 | 11.0 | 6:15 | 5:13 |
| 17 | 10.9 | 6:16 | 5:12 |
| 18 | 10.9 | 6:17 | 5:10 |
| 19 | 10.9 | 6:18 | 5:09 |
| 20 | 10.8 | 6:19 | 5:08 |
| 21 | 10.8 | 6:20 | 5:06 |
| 22 | 10.7 | 6:21 | 5:05 |
| 23 | 10.7 | 6:22 | 5:04 |
| 24 | 10.7 | 6:23 | 5:02 |
| 25 | 10.6 | 6:24 | 5:01 |
| 26 | 10.6 | 6:25 | 5:00 |
| 27 | 10.5 | 6:26 | 4:59 |
| 28 | 10.5 | 6:27 | 4:57 |
| 29 | 10.5 | 6:29 | 4:56 |
| 30 | 10.4 | 6:30 | 4:55 |
| 31 | 10.4 | 6:31 | 4:54 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 4.31 kWh/m².
For context, solar energy here swings from a low near 2.71 kWh/m² to a high of 7.45 kWh/m² in June across the year — October's 4.31 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.0 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.6 | 4.6 | 4.6 | 4.5 | 4.5 | 4.4 | 4.4 | 4.3 | 4.3 | 4.3 | 4.2 | 4.2 | 4.1 | 4.1 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.7 | 3.7 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.0 | Bright |
| 2 | 4.9 | Bright |
| 3 | 4.9 | Bright |
| 4 | 4.8 | Bright |
| 5 | 4.8 | Bright |
| 6 | 4.8 | Bright |
| 7 | 4.7 | Bright |
| 8 | 4.7 | Bright |
| 9 | 4.6 | Bright |
| 10 | 4.6 | Bright |
| 11 | 4.6 | Bright |
| 12 | 4.5 | Bright |
| 13 | 4.5 | Bright |
| 14 | 4.4 | Bright |
| 15 | 4.4 | Bright |
| 16 | 4.3 | Bright |
| 17 | 4.3 | Bright |
| 18 | 4.3 | Bright |
| 19 | 4.2 | Bright |
| 20 | 4.2 | Bright |
| 21 | 4.1 | Bright |
| 22 | 4.1 | Bright |
| 23 | 4.0 | Bright |
| 24 | 4.0 | Moderate |
| 25 | 3.9 | Moderate |
| 26 | 3.9 | Moderate |
| 27 | 3.9 | Moderate |
| 28 | 3.8 | Moderate |
| 29 | 3.8 | Moderate |
| 30 | 3.7 | Moderate |
| 31 | 3.7 | Moderate |
Is October a good time to visit Fountain?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a reasonable time to visit Fountain for sightseeing.
What to pack for Fountain in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Fountain sees daytime highs around 61°F and nights near 34°F. Worth packing: a warm layer. About 6 days see rain.
UV index in Fountain in October
Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Fountain peaks around July 16 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 7 | 7 | 8 | 11 | 11 | 11 | 8 | 6 | 4 | 3 |
| Level | Moderate | Moderate | Very high | High | Very high | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 7 | Very high |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 11 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Where is Fountain?
Fountain sits at 38.7°N, 104.7°W, 5,545 ft above sea level, in United States. The nearest listed city is Security-Widefield, 4.3 mi away.
Topography around Fountain
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Fountain.
Within 2 miles, the terrain around Fountain has only modest variations in elevation — a maximum elevation change of 289 ft around an average of 5,594 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 4,259 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 9,738 ft.
The land around Fountain is covered by grassland (62%) and artificial surfaces (26%) within 2 miles, grassland (78%) within 10 miles, and grassland (69%) and trees (25%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Fountain (38.6822°, -104.7008°, elevation 5,545 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).