Chico weather in December
In December, Chico sees average daytime highs of 56°F and overnight lows near 40°F, with 7.9 in of precipitation across 11.4 wet days and about 9.2 hours of daylight. It is the 12th-warmest and 1st-wettest month of the year here.
Highs ease over the month, from about 58°F in the first days to 55°F by the end. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels dry.
Daylight stretches from about 9 h 24 min at the start of December to 9 h 12 min by month's end. Set against the rest of the year, December is Chico's 11th-clearest and 1st-windiest month. For the whole year in context, see Chico's year-round climate.
- Daytime high
- 56°
- 12th warmest
- Overnight low
- 40°
- 1st coldest
- Precipitation
- 7.9 in
- 11.4 wet days
- Daylight
- 9 h 12 min
- 7:27 AM – 4:40 PM
- Cloud cover
- 59%
- 11th clearest
- Wind
- 7 mph
- 1st windiest
- Solar energy
- 1.94 kWh/m²
- Travel score
- 3.7
- out of 10
Chico is city in Butte County, California, United States.
- Density
- 1,416/km²
- people per km²
- Founded
- 1860
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs ease over the month, from about 58°F in the first days to 55°F by the end.
A typical December day in Chico reaches about 56°F in the afternoon and slips back to 40°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 48°F and 63°F. Set against its neighbours, December runs about 8°F cooler than November and on par with January.
| 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) | 58 | 58 | 58 | 57 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 |
| Avg low (°F) | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 58 | 41 |
| 2 | 58 | 41 |
| 3 | 58 | 41 |
| 4 | 57 | 41 |
| 5 | 57 | 41 |
| 6 | 57 | 41 |
| 7 | 57 | 41 |
| 8 | 56 | 41 |
| 9 | 56 | 40 |
| 10 | 56 | 40 |
| 11 | 56 | 40 |
| 12 | 56 | 40 |
| 13 | 56 | 40 |
| 14 | 56 | 40 |
| 15 | 55 | 40 |
| 16 | 55 | 40 |
| 17 | 55 | 40 |
| 18 | 55 | 40 |
| 19 | 55 | 39 |
| 20 | 55 | 39 |
| 21 | 55 | 39 |
| 22 | 55 | 39 |
| 23 | 55 | 39 |
| 24 | 55 | 39 |
| 25 | 55 | 39 |
| 26 | 55 | 39 |
| 27 | 55 | 39 |
| 28 | 55 | 39 |
| 29 | 55 | 39 |
| 30 | 55 | 39 |
| 31 | 55 | 39 |
How December really feels in Chico
Once humidity and wind are folded in, December averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Chico weather by month
How December compares with the rest of the year at a glance. December is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 57° / 40° | 7.2 | 11.2 | 0.5 | 9.5 | 3.9 |
| Feb | 60° / 42° | 6.9 | 10.2 | 0.7 | 10.4 | 4.6 |
| Mar | 64° / 45° | 5.9 | 10.9 | 0.4 | 11.7 | 5.8 |
| Apr | 70° / 49° | 2.9 | 7.4 | 0.2 | 13 | 7.0 |
| May | 80° / 55° | 1.9 | 5.1 | 0 | 14.2 | 7.6 |
| Jun | 89° / 63° | 0.6 | 1.8 | 0 | 14.8 | 5.2 |
| Jul | 96° / 67° | 0.0 | 0.1 | 0 | 14.5 | 3.2 |
| Aug | 94° / 65° | 0.1 | 0.3 | 0 | 13.6 | 3.7 |
| Sep | 88° / 60° | 0.3 | 1.2 | 0 | 12.3 | 5.8 |
| Oct | 77° / 52° | 2.0 | 3.8 | 0 | 10.9 | 8.1 |
| Nov | 64° / 44° | 4.1 | 8 | 0.2 | 9.8 | 5.9 |
| Dec | 56° / 40° | 7.9 | 11.4 | 0.5 | 9.2 | 3.7 |
Cloud cover in December
The sky is clear or mostly clear about 35% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 9% of December, with mostly cloudy or overcast conditions the remaining 56%.
| 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 (%) | 48 | 48 | 47 | 46 | 45 | 44 | 43 | 43 | 42 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 45 | 45 | 46 | 45 | 45 | 45 | 45 | 45 | 44 |
| Cloudier (%) | 52 | 52 | 53 | 54 | 55 | 56 | 57 | 57 | 58 | 59 | 59 | 59 | 59 | 58 | 58 | 58 | 57 | 57 | 57 | 56 | 56 | 56 | 55 | 55 | 54 | 55 | 55 | 55 | 55 | 55 | 56 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 48 | 52 |
| 2 | 48 | 52 |
| 3 | 47 | 53 |
| 4 | 46 | 54 |
| 5 | 45 | 55 |
| 6 | 44 | 56 |
| 7 | 43 | 57 |
| 8 | 43 | 57 |
| 9 | 42 | 58 |
| 10 | 41 | 59 |
| 11 | 41 | 59 |
| 12 | 41 | 59 |
| 13 | 41 | 59 |
| 14 | 42 | 58 |
| 15 | 42 | 58 |
| 16 | 42 | 58 |
| 17 | 43 | 57 |
| 18 | 43 | 57 |
| 19 | 43 | 57 |
| 20 | 44 | 56 |
| 21 | 44 | 56 |
| 22 | 44 | 56 |
| 23 | 45 | 55 |
| 24 | 45 | 55 |
| 25 | 46 | 54 |
| 26 | 45 | 55 |
| 27 | 45 | 55 |
| 28 | 45 | 55 |
| 29 | 45 | 55 |
| 30 | 45 | 55 |
| 31 | 44 | 56 |
Chance of precipitation in December
Chico gets around 7.9 in of rain and snow over 11.4 wet days in December, the wettest month. 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 41% on the wettest days, and about 1 day brings 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 (%) | 35 | 36 | 36 | 37 | 38 | 39 | 39 | 40 | 40 | 41 | 41 | 41 | 41 | 40 | 40 | 39 | 38 | 37 | 37 | 36 | 35 | 34 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 34 |
| Snow chance (%) | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 35 | 2 |
| 2 | 36 | 2 |
| 3 | 36 | 2 |
| 4 | 37 | 1 |
| 5 | 38 | 1 |
| 6 | 39 | 1 |
| 7 | 39 | 1 |
| 8 | 40 | 1 |
| 9 | 40 | 1 |
| 10 | 41 | 1 |
| 11 | 41 | 1 |
| 12 | 41 | 1 |
| 13 | 41 | 1 |
| 14 | 40 | 1 |
| 15 | 40 | 1 |
| 16 | 39 | 1 |
| 17 | 38 | 1 |
| 18 | 37 | 1 |
| 19 | 37 | 1 |
| 20 | 36 | 1 |
| 21 | 35 | 2 |
| 22 | 34 | 2 |
| 23 | 34 | 2 |
| 24 | 34 | 2 |
| 25 | 33 | 2 |
| 26 | 33 | 2 |
| 27 | 33 | 2 |
| 28 | 33 | 2 |
| 29 | 33 | 2 |
| 30 | 33 | 2 |
| 31 | 34 | 2 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December 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 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 100 | 0 |
| 3 | 100 | 0 |
| 4 | 100 | 0 |
| 5 | 100 | 0 |
| 6 | 100 | 0 |
| 7 | 100 | 0 |
| 8 | 100 | 0 |
| 9 | 100 | 0 |
| 10 | 100 | 0 |
| 11 | 100 | 0 |
| 12 | 100 | 0 |
| 13 | 100 | 0 |
| 14 | 100 | 0 |
| 15 | 100 | 0 |
| 16 | 100 | 0 |
| 17 | 100 | 0 |
| 18 | 100 | 0 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 99 | 1 |
| 22 | 99 | 1 |
| 23 | 99 | 1 |
| 24 | 99 | 1 |
| 25 | 99 | 1 |
| 26 | 99 | 1 |
| 27 | 99 | 1 |
| 28 | 99 | 1 |
| 29 | 99 | 1 |
| 30 | 99 | 1 |
| 31 | 99 | 1 |
Wind in December
Winds average 7 mph in December, the windiest month of the year.
Across December, daily wind ranges from about 6 mph on the calmest days to 7 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) | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 |
| 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 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 6 | calm |
| 31 | 6 | calm |
Sunrise & sunset in December
Daylight runs from about 9 h 24 min at the start of December to 9 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 12 minutes over December. Sunrise moves from 7:15 AM to 7:34 AM, and sunset from 4:39 PM to 4:47 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) | 9.4 | 9.4 | 9.4 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.3 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 | 9.2 |
| Sunrise (AM) | 7:15 | 7:16 | 7:17 | 7:18 | 7:19 | 7:20 | 7:21 | 7:22 | 7:22 | 7:23 | 7:24 | 7:25 | 7:25 | 7:26 | 7:27 | 7:27 | 7:28 | 7:29 | 7:29 | 7:30 | 7:30 | 7:31 | 7:31 | 7:32 | 7:32 | 7:32 | 7:33 | 7:33 | 7:33 | 7:34 | 7:34 |
| Sunset (PM) | 4:39 | 4:39 | 4:39 | 4:38 | 4:38 | 4:38 | 4:38 | 4:38 | 4:38 | 4:38 | 4:39 | 4:39 | 4:39 | 4:39 | 4:39 | 4:40 | 4:40 | 4:40 | 4:41 | 4:41 | 4:41 | 4:42 | 4:42 | 4:43 | 4:43 | 4:44 | 4:45 | 4:45 | 4:46 | 4:47 | 4:47 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.4 | 7:15 | 4:39 |
| 2 | 9.4 | 7:16 | 4:39 |
| 3 | 9.4 | 7:17 | 4:39 |
| 4 | 9.3 | 7:18 | 4:38 |
| 5 | 9.3 | 7:19 | 4:38 |
| 6 | 9.3 | 7:20 | 4:38 |
| 7 | 9.3 | 7:21 | 4:38 |
| 8 | 9.3 | 7:22 | 4:38 |
| 9 | 9.3 | 7:22 | 4:38 |
| 10 | 9.3 | 7:23 | 4:38 |
| 11 | 9.2 | 7:24 | 4:39 |
| 12 | 9.2 | 7:25 | 4:39 |
| 13 | 9.2 | 7:25 | 4:39 |
| 14 | 9.2 | 7:26 | 4:39 |
| 15 | 9.2 | 7:27 | 4:39 |
| 16 | 9.2 | 7:27 | 4:40 |
| 17 | 9.2 | 7:28 | 4:40 |
| 18 | 9.2 | 7:29 | 4:40 |
| 19 | 9.2 | 7:29 | 4:41 |
| 20 | 9.2 | 7:30 | 4:41 |
| 21 | 9.2 | 7:30 | 4:41 |
| 22 | 9.2 | 7:31 | 4:42 |
| 23 | 9.2 | 7:31 | 4:42 |
| 24 | 9.2 | 7:32 | 4:43 |
| 25 | 9.2 | 7:32 | 4:43 |
| 26 | 9.2 | 7:32 | 4:44 |
| 27 | 9.2 | 7:33 | 4:45 |
| 28 | 9.2 | 7:33 | 4:45 |
| 29 | 9.2 | 7:33 | 4:46 |
| 30 | 9.2 | 7:34 | 4:47 |
| 31 | 9.2 | 7:34 | 4:47 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 1.94 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 8.24 kWh/m² in July across the year — December's 1.94 kWh/m² sits near the bottom.
| 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) | 2.1 | 2.0 | 2.0 | 2.0 | 2.0 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 | 2.0 |
| Level | Moderate | Moderate | Moderate | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.1 | Moderate |
| 2 | 2.0 | Moderate |
| 3 | 2.0 | Moderate |
| 4 | 2.0 | Dim |
| 5 | 2.0 | Dim |
| 6 | 1.9 | Dim |
| 7 | 1.9 | Dim |
| 8 | 1.9 | Dim |
| 9 | 1.9 | Dim |
| 10 | 1.9 | Dim |
| 11 | 1.9 | Dim |
| 12 | 1.9 | Dim |
| 13 | 1.9 | Dim |
| 14 | 1.9 | Dim |
| 15 | 1.9 | Dim |
| 16 | 1.9 | Dim |
| 17 | 1.9 | Dim |
| 18 | 1.9 | Dim |
| 19 | 1.9 | Dim |
| 20 | 1.9 | Dim |
| 21 | 1.9 | Dim |
| 22 | 1.9 | Dim |
| 23 | 1.9 | Dim |
| 24 | 1.9 | Dim |
| 25 | 1.9 | Dim |
| 26 | 2.0 | Dim |
| 27 | 2.0 | Dim |
| 28 | 2.0 | Dim |
| 29 | 2.0 | Dim |
| 30 | 2.0 | Dim |
| 31 | 2.0 | Dim |
Hazard calendar for Chico
In December, Chico sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Chico's rainy season runs November–March, when most of the year's rain falls.
Is December a good time to visit Chico?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a weaker month for outdoor sightseeing in Chico.
What to pack for Chico in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Chico sees daytime highs around 56°F and nights near 40°F. Worth packing: a warm layer and rain gear. About 11 days see rain.
UV index in Chico in December
Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Chico peaks around June 22 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 2 (low).
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 | 5 | 6 | 9 | 10 | 10 | 8 | 6 | 5 | 2 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 9 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Very high |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Low |
| Dec | 2 | Low |
Air quality in Chico in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Chico is worst in July — around 64 µg/m³ PM2.5 (unhealthy), about 8.2× the cleanest month (December, 8 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) | 9 | 11 | 13 | 13 | 10 | 10 | 64 | 59 | 63 | 17 | 37 | 8 |
| Level | Good | Good | Moderate | Moderate | Good | Good | Unhealthy | Unhealthy | Unhealthy | Moderate | Poor | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 11 | Good |
| Mar | 13 | Moderate |
| Apr | 13 | Moderate |
| May | 10 | Good |
| Jun | 10 | Good |
| Jul | 64 | Unhealthy |
| Aug | 59 | Unhealthy |
| Sep | 63 | Unhealthy |
| Oct | 17 | Moderate |
| Nov | 37 | Poor |
| Dec | 8 | Good |
Where is Chico?
Chico sits at 39.7°N, 121.8°W, 197 ft above sea level, in United States. The nearest listed city is Paradise, 12 mi away.
Topography around Chico
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Chico.
Within 2 miles, the terrain around Chico has only modest variations in elevation — a maximum elevation change of 128 ft around an average of 207 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,860 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,772 ft.
The land around Chico is covered by trees (62%) and artificial surfaces (29%) within 2 miles, trees (51%) and grassland (33%) within 10 miles, and trees (52%) and grassland (32%) 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 Chico (39.7285°, -121.8375°, elevation 197 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).