Annual mean 14°C · wettest around January · prevailing wind SW
Warmest
26.0 °C
Coldest
11.0 °C
Wettest
26%
Windiest
3.8 m/s
Prevailing
SW
2.8 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Ukiah over the whole year is 14°C. July is the hottest month, with highs of about 26°C; February is the coldest, with lows of about 6°C. The rainy (wet) season in Ukiah runs from November to April, peaking in January with a 27% chance of rain on a given day. The dry season is May to October; July is the driest month, at 2%. Winds in Ukiah are highest in June, averaging 2.6 m/s (9 km/h), and lightest in October, at 1.6 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Ukiah come in July, when the sky is typically 9% covered; January is the cloudiest month, at 52%.
Month by month Ukiah climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
12°C
7°C
9°C
27%
52%
2.0 m/s
9
0
71
February
13°C
6°C
10°C
23%
35%
2.1 m/s
23
0
73
March
14°C
7°C
12°C
26%
46%
2.3 m/s
30
1
77
April
17°C
8°C
16°C
17%
30%
2.3 m/s
60
10
79
May
20°C
11°C
20°C
13%
24%
2.5 m/s
71
27
64
June
24°C
13°C
26°C
6%
11%
2.6 m/s
57
53
35
July
26°C
14°C
29°C
2%
9%
2.4 m/s
38
65
17
August
26°C
14°C
28°C
3%
13%
2.1 m/s
41
69
16
September
24°C
13°C
25°C
7%
17%
1.9 m/s
61
54
35
October
21°C
10°C
20°C
13%
21%
1.6 m/s
75
26
65
November
15°C
7°C
13°C
20%
35%
1.6 m/s
38
1
86
December
12°C
6°C
9°C
26%
45%
1.8 m/s
9
0
70
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Ukiah weather by season
Year round, Ukiah has days of about 12°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from 6°C to 14°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around January and least likely around July. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Ukiah weather in winterDecember to February
High 12°CLow 6°CRain 26%
Winter in Ukiah has typical daily highs of about 12°C and lows of about 6°C, with a 26% chance of rain on a given day.
Ukiah weather in springMarch to May
High 17°CLow 9°CRain 18%
Spring in Ukiah has typical daily highs of about 17°C and lows of about 9°C, with a 18% chance of rain on a given day.
Ukiah weather in summerJune to August
High 25°CLow 14°CRain 4%
Summer in Ukiah has typical daily highs of about 25°C and lows of about 14°C, with a 4% chance of rain on a given day.
Ukiah weather in autumnSeptember to November
High 20°CLow 10°CRain 13%
Autumn in Ukiah has typical daily highs of about 20°C and lows of about 10°C, with a 13% chance of rain on a given day.
When is the rainy season in Ukiah?
The rainy (wet) season in Ukiah runs from November to April, peaking in January with a 27% chance of rain on a given day. The dry season is May to October; July is the driest month, at 2%.
What time of year is Ukiah windiest?
Winds in Ukiah are highest in June, averaging 2.6 m/s (9 km/h), and lightest in October, at 1.6 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Ukiah year round?
The average temperature in Ukiah over the whole year is 14°C. July is the hottest month, with highs of about 26°C; February is the coldest, with lows of about 6°C.