Ukiah is drier than 92% of U.S. towns: 17 inches of precipitation a year
January mornings start at about 22°. The year swings widely: the coldest month’s nights and the warmest month’s afternoons are 62° apart. In July, afternoons here are cooler than in 73% of U.S. towns. Garden chairs stay out from June to August, the months with highs of 72–83°.
A year in Ukiah at a glance
Each month’s typical high and low, and what it brings.
What stands out about Ukiah’s climate
Compared with towns across the U.S., with Ukiah’s place in Oregon beside it.
What a year in Ukiah feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 17 inches of rain a year
May is the wettest month and July the driest.
Rain + melted snow by month
Inches of water
Living with Ukiah’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 6b.
Months with highs of 62–84° and lows of 40° or more: June, July and August.
Parks & trails →Of the yearly building losses FEMA expects in Ukiah from natural hazards, river flooding is the largest share (52%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Ukiah and similar climates
TownRatings has no climate map of the towns around Ukiah yet.
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Ukiah averaged 1.7° warmer than the 1900s. The biggest change is in January (+4.9°).
A bigger shift than in 69% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Ukiah compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Ukiah’s place among Oregon’s.
Ukiah weather by month
Highs, lows and precipitation from NOAA’s grid at Ukiah’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 41° | 22° | 1.8" | 24° – 37° |
| February | 44° | 23° | 1.4" | 26° – 42° |
| March | 51° | 27° | 1.4" | 34° – 45° |
| April | 56° | 30° | 1.7" | 38° – 50° |
| May | 64° | 37° | 2.1" | 45° – 56° |
| June | 72° | 41° | 1.6" | 52° – 65° |
| July | 83° | 45° | 0.5" | 56° – 69° |
| August | 83° | 44° | 0.5" | 59° – 67° |
| September | 74° | 38° | 0.6" | 52° – 61° |
| October | 61° | 31° | 1.4" | 40° – 53° |
| November | 47° | 27° | 1.8" | 30° – 43° |
| December | 39° | 21° | 2.1" | 24° – 35° |
| Year | 60° | 32° | 16.8" |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 26° to 42°. August is the most reliable, staying within 8°.
Where Ukiah’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Ukiah’s center.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Ukiah’s climate
What is the weather like in Ukiah?
A typical July afternoon reaches 83°, a January night drops to 22°. Milder January nights than 51% of U.S. towns; cooler July afternoons than 73% of U.S. towns.
How cold does it get in Ukiah in winter?
December nights average 21°. In the coldest December of the last 30 years the month averaged 24°.
How hot does it get in Ukiah?
July, with a typical high of 83°. 90° days are rare.
What growing zone is Ukiah in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −4°.
What is the best time of year to visit Ukiah?
By one simple rule (highs of 62–84° and lows of 40° or more), June, July and August. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Ukiah getting warmer?
Yes: 1991–2020 averaged 1.7° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 69% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Ukiah.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.