Ukiah weather in March
In March, Ukiah sees average daytime highs of 59°F and overnight lows near 40°F, with 6.0 in of precipitation across 11.8 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.
Highs climb over the month, from about 57°F in the first days to 60°F by the end. The sky is clear or mostly clear about 32% of the time in March, and the air most often feels dry.
Daylight stretches from about 11 hours at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Ukiah's 9th-clearest and 4th-windiest month. For the whole year in context, see Ukiah's year-round climate.
- Daytime high
- 59°
- 9th warmest
- Overnight low
- 40°
- 4th coldest
- Precipitation
- 6.0 in
- 11.8 wet days
- Daylight
- 11 h 42 min
- 6:32 AM – 6:13 PM
- Cloud cover
- 60%
- 9th clearest
- Wind
- 4 mph
- 4th windiest
- Solar energy
- 4.33 kWh/m²
- Travel score
- 4.5
- out of 10
Ukiah is city in and county seat of Mendocino County, California, United States.
- Density
- 1,301/km²
- people per km²
- Founded
- 1876
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Highs climb over the month, from about 57°F in the first days to 60°F by the end.
A typical March day in Ukiah reaches about 59°F in the afternoon and slips back to 40°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 48°F and 71°F. Set against its neighbours, March runs about 3°F warmer than February and about 4°F cooler than April.
| 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) | 57 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 59 | 59 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
| Avg low (°F) | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 57 | 38 |
| 2 | 57 | 38 |
| 3 | 57 | 38 |
| 4 | 57 | 38 |
| 5 | 58 | 38 |
| 6 | 58 | 39 |
| 7 | 58 | 39 |
| 8 | 58 | 39 |
| 9 | 59 | 39 |
| 10 | 59 | 39 |
| 11 | 59 | 40 |
| 12 | 59 | 40 |
| 13 | 59 | 40 |
| 14 | 60 | 40 |
| 15 | 60 | 40 |
| 16 | 60 | 40 |
| 17 | 60 | 40 |
| 18 | 60 | 40 |
| 19 | 60 | 40 |
| 20 | 60 | 40 |
| 21 | 60 | 40 |
| 22 | 60 | 40 |
| 23 | 60 | 40 |
| 24 | 60 | 40 |
| 25 | 60 | 40 |
| 26 | 60 | 40 |
| 27 | 60 | 40 |
| 28 | 60 | 40 |
| 29 | 60 | 40 |
| 30 | 60 | 40 |
| 31 | 60 | 40 |
How March really feels in Ukiah
Once humidity and wind are folded in, March 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.
March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Ukiah weather by month
How March compares with the rest of the year at a glance. March is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 54° / 37° | 7.2 | 12.4 | 1.9 | 9.6 | 3.0 |
| Feb | 56° / 38° | 6.7 | 10.8 | 2.3 | 10.5 | 3.6 |
| Mar | 59° / 40° | 6.0 | 11.8 | 2 | 11.7 | 4.5 |
| Apr | 63° / 42° | 3.1 | 8.3 | 0.5 | 13 | 5.9 |
| May | 70° / 47° | 1.9 | 5.4 | 0 | 14.1 | 7.5 |
| Jun | 78° / 53° | 0.6 | 2.2 | 0 | 14.7 | 8.6 |
| Jul | 85° / 57° | 0.0 | 0.3 | 0 | 14.5 | 7.1 |
| Aug | 85° / 57° | 0.1 | 0.4 | 0 | 13.5 | 7.2 |
| Sep | 82° / 54° | 0.3 | 1.4 | 0 | 12.3 | 8.3 |
| Oct | 73° / 47° | 2.2 | 4.6 | 0 | 11 | 8.1 |
| Nov | 60° / 40° | 4.3 | 8.5 | 0.3 | 9.9 | 5.0 |
| Dec | 53° / 36° | 7.8 | 12.2 | 1.3 | 9.3 | 2.9 |
Cloud cover in March
The sky is clear or mostly clear about 32% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 13% of March, 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 (%) | 45 | 44 | 44 | 44 | 45 | 44 | 44 | 45 | 45 | 44 | 45 | 45 | 44 | 43 | 43 | 43 | 42 | 42 | 43 | 44 | 44 | 44 | 45 | 45 | 45 | 46 | 47 | 47 | 48 | 49 | 49 |
| Cloudier (%) | 55 | 56 | 56 | 56 | 55 | 56 | 56 | 55 | 55 | 56 | 55 | 55 | 56 | 57 | 57 | 57 | 58 | 58 | 57 | 56 | 56 | 56 | 55 | 55 | 55 | 54 | 53 | 53 | 52 | 51 | 51 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 45 | 55 |
| 2 | 44 | 56 |
| 3 | 44 | 56 |
| 4 | 44 | 56 |
| 5 | 45 | 55 |
| 6 | 44 | 56 |
| 7 | 44 | 56 |
| 8 | 45 | 55 |
| 9 | 45 | 55 |
| 10 | 44 | 56 |
| 11 | 45 | 55 |
| 12 | 45 | 55 |
| 13 | 44 | 56 |
| 14 | 43 | 57 |
| 15 | 43 | 57 |
| 16 | 43 | 57 |
| 17 | 42 | 58 |
| 18 | 42 | 58 |
| 19 | 43 | 57 |
| 20 | 44 | 56 |
| 21 | 44 | 56 |
| 22 | 44 | 56 |
| 23 | 45 | 55 |
| 24 | 45 | 55 |
| 25 | 45 | 55 |
| 26 | 46 | 54 |
| 27 | 47 | 53 |
| 28 | 47 | 53 |
| 29 | 48 | 52 |
| 30 | 49 | 51 |
| 31 | 49 | 51 |
Chance of precipitation in March
Ukiah gets around 6.0 in of rain and snow over 11.8 wet days in March. 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 2 days bring snow. The odds ease 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 38 | 37 | 37 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 38 | 38 | 38 | 37 | 37 | 37 | 36 | 36 | 35 | 35 | 34 | 33 | 33 |
| Snow chance (%) | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 41 | 8 |
| 2 | 41 | 8 |
| 3 | 40 | 8 |
| 4 | 40 | 7 |
| 5 | 40 | 7 |
| 6 | 39 | 7 |
| 7 | 39 | 7 |
| 8 | 38 | 6 |
| 9 | 37 | 6 |
| 10 | 37 | 6 |
| 11 | 36 | 6 |
| 12 | 36 | 6 |
| 13 | 36 | 6 |
| 14 | 36 | 6 |
| 15 | 36 | 6 |
| 16 | 37 | 6 |
| 17 | 37 | 6 |
| 18 | 37 | 6 |
| 19 | 38 | 6 |
| 20 | 38 | 6 |
| 21 | 38 | 6 |
| 22 | 37 | 6 |
| 23 | 37 | 6 |
| 24 | 37 | 6 |
| 25 | 36 | 6 |
| 26 | 36 | 6 |
| 27 | 35 | 6 |
| 28 | 35 | 6 |
| 29 | 34 | 6 |
| 30 | 33 | 5 |
| 31 | 33 | 5 |
Humidity in March
Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March 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 March
Winds average 4 mph in March.
Across March, daily wind ranges from about 4 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) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 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 | 4 | calm |
| 2 | 4 | calm |
| 3 | 4 | calm |
| 4 | 4 | calm |
| 5 | 4 | calm |
| 6 | 4 | calm |
| 7 | 4 | calm |
| 8 | 4 | calm |
| 9 | 4 | 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 | 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 March
Daylight runs from about 11 hours at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 78 minutes over March. Sunrise moves from 6:55 AM to 6:08 AM, and sunset from 5:57 PM to 6:28 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) | 11.0 | 11.1 | 11.1 | 11.2 | 11.2 | 11.3 | 11.3 | 11.3 | 11.4 | 11.4 | 11.5 | 11.5 | 11.6 | 11.6 | 11.6 | 11.7 | 11.7 | 11.8 | 11.8 | 11.9 | 11.9 | 11.9 | 12.0 | 12.0 | 12.1 | 12.1 | 12.2 | 12.2 | 12.3 | 12.3 | 12.3 |
| Sunrise (AM) | 6:55 | 6:53 | 6:52 | 6:51 | 6:49 | 6:48 | 6:46 | 6:45 | 6:43 | 6:41 | 6:40 | 6:38 | 6:37 | 6:35 | 6:34 | 6:32 | 6:30 | 6:29 | 6:27 | 6:26 | 6:24 | 6:22 | 6:21 | 6:19 | 6:17 | 6:16 | 6:14 | 6:13 | 6:11 | 6:09 | 6:08 |
| Sunset (PM) | 5:57 | 5:58 | 5:59 | 6:00 | 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 | 6:28 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.0 | 6:55 | 5:57 |
| 2 | 11.1 | 6:53 | 5:58 |
| 3 | 11.1 | 6:52 | 5:59 |
| 4 | 11.2 | 6:51 | 6:00 |
| 5 | 11.2 | 6:49 | 6:02 |
| 6 | 11.3 | 6:48 | 6:03 |
| 7 | 11.3 | 6:46 | 6:04 |
| 8 | 11.3 | 6:45 | 6:05 |
| 9 | 11.4 | 6:43 | 6:06 |
| 10 | 11.4 | 6:41 | 6:07 |
| 11 | 11.5 | 6:40 | 6:08 |
| 12 | 11.5 | 6:38 | 6:09 |
| 13 | 11.6 | 6:37 | 6:10 |
| 14 | 11.6 | 6:35 | 6:11 |
| 15 | 11.6 | 6:34 | 6:12 |
| 16 | 11.7 | 6:32 | 6:13 |
| 17 | 11.7 | 6:30 | 6:14 |
| 18 | 11.8 | 6:29 | 6:15 |
| 19 | 11.8 | 6:27 | 6:16 |
| 20 | 11.9 | 6:26 | 6:17 |
| 21 | 11.9 | 6:24 | 6:18 |
| 22 | 11.9 | 6:22 | 6:19 |
| 23 | 12.0 | 6:21 | 6:20 |
| 24 | 12.0 | 6:19 | 6:21 |
| 25 | 12.1 | 6:17 | 6:22 |
| 26 | 12.1 | 6:16 | 6:23 |
| 27 | 12.2 | 6:14 | 6:24 |
| 28 | 12.2 | 6:13 | 6:25 |
| 29 | 12.3 | 6:11 | 6:26 |
| 30 | 12.3 | 6:09 | 6:27 |
| 31 | 12.3 | 6:08 | 6:28 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 4.33 kWh/m².
For context, solar energy here swings from a low near 1.92 kWh/m² to a high of 8.22 kWh/m² in July across the year — March's 4.33 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) | 3.6 | 3.6 | 3.7 | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.0 | 4.1 | 4.1 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.5 | 4.5 | 4.6 | 4.6 | 4.7 | 4.7 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 | 5.1 | 5.1 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.6 | Moderate |
| 2 | 3.6 | Moderate |
| 3 | 3.7 | Moderate |
| 4 | 3.8 | Moderate |
| 5 | 3.8 | Moderate |
| 6 | 3.9 | Moderate |
| 7 | 3.9 | Moderate |
| 8 | 4.0 | Moderate |
| 9 | 4.0 | Bright |
| 10 | 4.1 | Bright |
| 11 | 4.1 | Bright |
| 12 | 4.2 | Bright |
| 13 | 4.2 | Bright |
| 14 | 4.3 | Bright |
| 15 | 4.3 | Bright |
| 16 | 4.3 | Bright |
| 17 | 4.4 | Bright |
| 18 | 4.4 | Bright |
| 19 | 4.5 | Bright |
| 20 | 4.5 | Bright |
| 21 | 4.6 | Bright |
| 22 | 4.6 | Bright |
| 23 | 4.7 | Bright |
| 24 | 4.7 | Bright |
| 25 | 4.8 | Bright |
| 26 | 4.8 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 5.0 | Bright |
| 30 | 5.1 | Bright |
| 31 | 5.1 | Bright |
Hazard calendar for Ukiah
In March, Ukiah sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Ukiah's rainy season runs November–March, when most of the year's rain falls.
Is March a good time to visit Ukiah?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a reasonable time to visit Ukiah for sightseeing.
What to pack for Ukiah in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Ukiah sees daytime highs around 59°F and nights near 40°F. Worth packing: a warm layer and rain gear. About 12 days see rain.
Sea temperature near Ukiah in March
The nearest coast averages about 53°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 29 mi away) is warmest in September at about 55°F and coldest in April near 52°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 53 | 53 | 53 | 52 | 52 | 52 | 53 | 54 | 55 | 55 | 55 | 54 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 53 | Bracing |
| Feb | 53 | Bracing |
| Mar | 53 | Bracing |
| Apr | 52 | Bracing |
| May | 52 | Bracing |
| Jun | 52 | Bracing |
| Jul | 53 | Bracing |
| Aug | 54 | Bracing |
| Sep | 55 | Bracing |
| Oct | 55 | Bracing |
| Nov | 55 | Bracing |
| Dec | 54 | Bracing |
UV index in Ukiah in March
Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ukiah peaks around July 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 | 9 | 6 | 5 | 2 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Extreme | Very high | High | Moderate | Moderate | 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 | Extreme |
| Aug | 9 | Very high |
| Sep | 6 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Ukiah in March
Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.
Air quality in Ukiah is worst in September — around 31 µg/m³ PM2.5 (moderate), about 5.8× the cleanest month (June, 5 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) | 6 | 8 | 9 | 8 | 6 | 5 | 14 | 29 | 31 | 14 | 8 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 8 | Good |
| Mar | 9 | Good |
| Apr | 8 | Good |
| May | 6 | Good |
| Jun | 5 | Good |
| Jul | 14 | Moderate |
| Aug | 29 | Moderate |
| Sep | 31 | Moderate |
| Oct | 14 | Moderate |
| Nov | 8 | Good |
| Dec | 6 | Good |
Where is Ukiah?
Ukiah sits at 39.2°N, 123.2°W, 633 ft above sea level, in United States. The nearest listed city is Clearlake, 34 mi away.
Topography around Ukiah
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Ukiah.
Within 2 miles, the terrain around Ukiah has significant variations in elevation — a maximum elevation change of 1,765 ft around an average of 827 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,415 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,362 ft.
The land around Ukiah is covered by trees (51%), artificial surfaces (25%) and grassland (20%) within 2 miles, trees (72%) and grassland (24%) within 10 miles, and trees (59%) and water (21%) 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 Ukiah (39.1502°, -123.2078°, elevation 633 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).