American Fork weather in February
In February, American Fork sees average daytime highs of 35°F and overnight lows near 20°F, with 2.3 in of precipitation across 10.2 wet days and about 10.4 hours of daylight. It is the 10th-warmest and 6th-wettest month of the year here.
Highs climb over the month, from about 33°F in the first days to 38°F by the end. The sky is clear or mostly clear about 27% of the time in February, and the air most often feels dry.
Daylight stretches from about 9 h 54 min at the start of February to 11 hours by month's end. Set against the rest of the year, February is American Fork's 12th-clearest and 11th-windiest month. For the whole year in context, see American Fork's year-round climate.
- Daytime high
- 35°
- 10th warmest
- Overnight low
- 20°
- 3rd coldest
- Precipitation
- 2.3 in
- 10.2 wet days
- Daylight
- 10 h 24 min
- 7:30 AM – 5:54 PM
- Cloud cover
- 60%
- 12th clearest
- Wind
- 4 mph
- 11th windiest
- Solar energy
- 3.62 kWh/m²
- Travel score
- 0.0
- out of 10
American Fork is city in Utah County, Utah, United States.
- Density
- 1,087/km²
- people per km²
- Founded
- 1850
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in February
Highs climb over the month, from about 33°F in the first days to 38°F by the end.
A typical February day in American Fork reaches about 35°F in the afternoon and slips back to 20°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 25°F and 45°F. Set against its neighbours, February runs about 5°F warmer than January and about 8°F cooler than March.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 37 | 37 | 38 | 38 | 38 |
| Avg low (°F) | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 22 | 22 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 33 | 18 |
| 2 | 33 | 18 |
| 3 | 33 | 18 |
| 4 | 33 | 18 |
| 5 | 34 | 18 |
| 6 | 34 | 19 |
| 7 | 34 | 19 |
| 8 | 34 | 19 |
| 9 | 35 | 19 |
| 10 | 35 | 19 |
| 11 | 35 | 19 |
| 12 | 35 | 20 |
| 13 | 35 | 20 |
| 14 | 35 | 20 |
| 15 | 36 | 20 |
| 16 | 36 | 20 |
| 17 | 36 | 20 |
| 18 | 36 | 20 |
| 19 | 36 | 20 |
| 20 | 36 | 20 |
| 21 | 37 | 20 |
| 22 | 37 | 21 |
| 23 | 37 | 21 |
| 24 | 37 | 21 |
| 25 | 37 | 21 |
| 26 | 38 | 21 |
| 27 | 38 | 22 |
| 28 | 38 | 22 |
How February really feels in American Fork
Once humidity and wind are folded in, February averages 0 days that feel above 90°F and 28 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
The story in February is cold — wind chill drags the overnight "feels like" below the raw low.
American Fork weather by month
How February compares with the rest of the year at a glance. February is the 10th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 31° / 16° | 2.7 | 11.3 | 11.7 | 9.4 | 0.0 |
| Feb | 35° / 20° | 2.3 | 10.2 | 10.6 | 10.4 | 0.0 |
| Mar | 44° / 26° | 2.5 | 11.3 | 10.4 | 11.7 | 0.8 |
| Apr | 51° / 31° | 2.9 | 12.4 | 9.6 | 13 | 2.3 |
| May | 62° / 39° | 2.5 | 11.6 | 3.6 | 14.2 | 5.2 |
| Jun | 75° / 49° | 1.3 | 6.3 | 0.5 | 14.8 | 7.6 |
| Jul | 85° / 57° | 0.9 | 4.8 | 0 | 14.6 | 6.3 |
| Aug | 83° / 56° | 0.9 | 5.2 | 0 | 13.6 | 6.9 |
| Sep | 72° / 47° | 1.7 | 6.4 | 0.6 | 12.3 | 7.6 |
| Oct | 58° / 35° | 2.1 | 8.3 | 3.9 | 10.9 | 4.7 |
| Nov | 42° / 23° | 2.2 | 9.2 | 8.5 | 9.8 | 0.6 |
| Dec | 31° / 15° | 2.4 | 9.9 | 10.5 | 9.2 | 0.0 |
Cloud cover in February
The sky is clear or mostly clear about 27% of the time in February, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 17% of February, with mostly cloudy or overcast conditions the remaining 55%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 46 | 45 | 45 | 45 | 45 | 45 | 44 | 45 | 44 | 44 | 44 | 44 | 44 | 43 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 45 | 46 |
| Cloudier (%) | 54 | 55 | 55 | 55 | 55 | 55 | 56 | 55 | 56 | 56 | 56 | 56 | 56 | 57 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 54 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 46 | 54 |
| 2 | 45 | 55 |
| 3 | 45 | 55 |
| 4 | 45 | 55 |
| 5 | 45 | 55 |
| 6 | 45 | 55 |
| 7 | 44 | 56 |
| 8 | 45 | 55 |
| 9 | 44 | 56 |
| 10 | 44 | 56 |
| 11 | 44 | 56 |
| 12 | 44 | 56 |
| 13 | 44 | 56 |
| 14 | 43 | 57 |
| 15 | 44 | 56 |
| 16 | 44 | 56 |
| 17 | 44 | 56 |
| 18 | 44 | 56 |
| 19 | 45 | 55 |
| 20 | 45 | 55 |
| 21 | 45 | 55 |
| 22 | 45 | 55 |
| 23 | 45 | 55 |
| 24 | 45 | 55 |
| 25 | 45 | 55 |
| 26 | 45 | 55 |
| 27 | 45 | 55 |
| 28 | 46 | 54 |
Chance of precipitation in February
American Fork gets around 2.3 in of rain and snow over 10.2 wet days in February. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 37% and peaks near 40% on the wettest days, and about 11 days bring snow. The odds climb toward the end of the month.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 35 | 36 | 36 | 37 | 38 | 38 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 39 | 39 |
| Snow chance (%) | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 35 | 36 | 37 | 38 | 39 | 39 | 40 | 41 | 41 | 42 | 42 | 42 | 42 | 42 | 42 | 42 | 41 | 41 | 40 | 40 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 33 | 33 |
| 2 | 33 | 33 |
| 3 | 33 | 33 |
| 4 | 33 | 33 |
| 5 | 33 | 33 |
| 6 | 34 | 34 |
| 7 | 34 | 34 |
| 8 | 34 | 34 |
| 9 | 35 | 35 |
| 10 | 36 | 36 |
| 11 | 36 | 37 |
| 12 | 37 | 38 |
| 13 | 38 | 39 |
| 14 | 38 | 39 |
| 15 | 39 | 40 |
| 16 | 39 | 41 |
| 17 | 39 | 41 |
| 18 | 39 | 42 |
| 19 | 40 | 42 |
| 20 | 40 | 42 |
| 21 | 40 | 42 |
| 22 | 40 | 42 |
| 23 | 40 | 42 |
| 24 | 40 | 42 |
| 25 | 40 | 41 |
| 26 | 39 | 41 |
| 27 | 39 | 40 |
| 28 | 39 | 40 |
Humidity in February
Most of February feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, February 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 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 |
Wind in February
Winds average 4 mph in February.
Across February, daily wind ranges from about 3 mph on the calmest days to 4 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| 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 |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 3 | calm |
| 2 | 3 | calm |
| 3 | 3 | calm |
| 4 | 3 | calm |
| 5 | 3 | calm |
| 6 | 3 | calm |
| 7 | 3 | calm |
| 8 | 3 | calm |
| 9 | 3 | calm |
| 10 | 4 | calm |
| 11 | 4 | calm |
| 12 | 4 | calm |
| 13 | 4 | calm |
| 14 | 4 | calm |
| 15 | 4 | calm |
| 16 | 4 | calm |
| 17 | 4 | calm |
| 18 | 4 | calm |
| 19 | 4 | calm |
| 20 | 4 | calm |
| 21 | 4 | calm |
| 22 | 4 | calm |
| 23 | 4 | calm |
| 24 | 4 | calm |
| 25 | 4 | calm |
| 26 | 4 | calm |
| 27 | 4 | calm |
| 28 | 4 | calm |
Sunrise & sunset in February
Daylight runs from about 9 h 54 min at the start of February to 11 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 66 minutes over February. Sunrise moves from 7:44 AM to 7:12 AM, and sunset from 5:37 PM to 6:09 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.9 | 9.9 | 10.0 | 10.0 | 10.0 | 10.1 | 10.1 | 10.1 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 | 10.4 | 10.4 | 10.4 | 10.5 | 10.5 | 10.6 | 10.6 | 10.7 | 10.7 | 10.7 | 10.8 | 10.8 | 10.9 | 10.9 | 11.0 |
| Sunrise (AM) | 7:44 | 7:43 | 7:42 | 7:42 | 7:41 | 7:40 | 7:39 | 7:38 | 7:37 | 7:35 | 7:34 | 7:33 | 7:32 | 7:31 | 7:30 | 7:28 | 7:27 | 7:26 | 7:25 | 7:23 | 7:22 | 7:21 | 7:19 | 7:18 | 7:16 | 7:15 | 7:13 | 7:12 |
| Sunset (PM) | 5:37 | 5:38 | 5:40 | 5:41 | 5:42 | 5:43 | 5:44 | 5:46 | 5:47 | 5:48 | 5:49 | 5:50 | 5:52 | 5:53 | 5:54 | 5:55 | 5:56 | 5:58 | 5:59 | 6:00 | 6:01 | 6:02 | 6:03 | 6:05 | 6:06 | 6:07 | 6:08 | 6:09 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.9 | 7:44 | 5:37 |
| 2 | 9.9 | 7:43 | 5:38 |
| 3 | 10.0 | 7:42 | 5:40 |
| 4 | 10.0 | 7:42 | 5:41 |
| 5 | 10.0 | 7:41 | 5:42 |
| 6 | 10.1 | 7:40 | 5:43 |
| 7 | 10.1 | 7:39 | 5:44 |
| 8 | 10.1 | 7:38 | 5:46 |
| 9 | 10.2 | 7:37 | 5:47 |
| 10 | 10.2 | 7:35 | 5:48 |
| 11 | 10.2 | 7:34 | 5:49 |
| 12 | 10.3 | 7:33 | 5:50 |
| 13 | 10.3 | 7:32 | 5:52 |
| 14 | 10.4 | 7:31 | 5:53 |
| 15 | 10.4 | 7:30 | 5:54 |
| 16 | 10.4 | 7:28 | 5:55 |
| 17 | 10.5 | 7:27 | 5:56 |
| 18 | 10.5 | 7:26 | 5:58 |
| 19 | 10.6 | 7:25 | 5:59 |
| 20 | 10.6 | 7:23 | 6:00 |
| 21 | 10.7 | 7:22 | 6:01 |
| 22 | 10.7 | 7:21 | 6:02 |
| 23 | 10.7 | 7:19 | 6:03 |
| 24 | 10.8 | 7:18 | 6:05 |
| 25 | 10.8 | 7:16 | 6:06 |
| 26 | 10.9 | 7:15 | 6:07 |
| 27 | 10.9 | 7:13 | 6:08 |
| 28 | 11.0 | 7:12 | 6:09 |
Solar energy in February
Average shortwave solar energy reaching the ground each day in February, about 3.62 kWh/m².
For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 8.12 kWh/m² in June across the year — February's 3.62 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 | 3.3 | 3.3 | 3.3 | 3.4 | 3.4 | 3.4 | 3.5 | 3.5 | 3.6 | 3.6 | 3.7 | 3.7 | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.0 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.1 | Moderate |
| 2 | 3.1 | Moderate |
| 3 | 3.1 | Moderate |
| 4 | 3.2 | Moderate |
| 5 | 3.2 | Moderate |
| 6 | 3.3 | Moderate |
| 7 | 3.3 | Moderate |
| 8 | 3.3 | Moderate |
| 9 | 3.4 | Moderate |
| 10 | 3.4 | Moderate |
| 11 | 3.4 | Moderate |
| 12 | 3.5 | Moderate |
| 13 | 3.5 | Moderate |
| 14 | 3.6 | Moderate |
| 15 | 3.6 | Moderate |
| 16 | 3.7 | Moderate |
| 17 | 3.7 | Moderate |
| 18 | 3.8 | Moderate |
| 19 | 3.8 | Moderate |
| 20 | 3.9 | Moderate |
| 21 | 3.9 | Moderate |
| 22 | 4.0 | Moderate |
| 23 | 4.0 | Bright |
| 24 | 4.1 | Bright |
| 25 | 4.2 | Bright |
| 26 | 4.2 | Bright |
| 27 | 4.3 | Bright |
| 28 | 4.3 | Bright |
Is February a good time to visit American Fork?
Our two travel scores rate February for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
February is a weaker month for outdoor sightseeing in American Fork.
What to pack for American Fork in February
From February's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In February, American Fork sees daytime highs around 35°F and nights near 20°F. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.
UV index in American Fork in February
Clear-sky midday UV in February peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in American Fork peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 6 | 6 | 7 | 10 | 10 | 9 | 7 | 5 | 3 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Extreme | Very high | Very high | Moderate | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 6 | High |
| Apr | 6 | High |
| May | 7 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 7 | Very high |
| Oct | 5 | Moderate |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in American Fork in February
Average fine-particle pollution (PM2.5) through the year — so you can see where February falls, not just the annual average.
Air quality in American Fork is worst in September — around 22 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (June, 9 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 11 | 12 | 10 | 10 | 9 | 11 | 14 | 22 | 12 | 9 | 9 |
| Level | Good | Good | Moderate | Good | Good | Good | Good | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 11 | Good |
| Mar | 12 | Moderate |
| Apr | 10 | Good |
| May | 10 | Good |
| Jun | 9 | Good |
| Jul | 11 | Good |
| Aug | 14 | Moderate |
| Sep | 22 | Moderate |
| Oct | 12 | Good |
| Nov | 9 | Good |
| Dec | 9 | Good |
Where is American Fork?
American Fork sits at 40.4°N, 111.8°W, 4,606 ft above sea level, in United States. The nearest listed city is Lehi, 3.1 mi away.
Topography around American Fork
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of American Fork.
Within 2 miles, the terrain around American Fork has only modest variations in elevation — a maximum elevation change of 312 ft around an average of 4,600 ft above sea level; within 10 miles, very significant variations in elevation — a maximum elevation change of 7,205 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,513 ft.
The land around American Fork is covered by artificial surfaces (43%), trees (21%) and grassland (20%) within 2 miles, grassland (30%) and trees (25%) within 10 miles, and grassland (45%) and trees (31%) 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 American Fork (40.3769°, -111.7958°, elevation 4,606 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).