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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Ukiah, California, is another fresh winter month, with temperature in the range of an average low of 38.8°F (3.8°C) and an average high of 55.2°F (12.9°C). January's beginning signals an average high-temperature of a still cool 55.2°F (12.9°C), barely different from December's 53.6°F (12°C). Weather in January »
Weather in February
The last month of the winter, February, is a mild month in Ukiah, California, with an average temperature fluctuating between 37.9°F (3.3°C) and 56.3°F (13.5°C). The commencement of February notes an average high-temperature of a moderate 56.3°F (13.5°C), exhibiting little difference from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is still a refreshing month in Ukiah, California, with an average temperature varying between 57.6°F (14.2°C) and 38.7°F (3.7°C). Ukiah greets March with an average high-temperature of a still mild 57.6°F (14.2°C), marking a slight deviation from the preceding month. Weather in March »
Weather in April
April is a comfortable spring month in Ukiah, California, with an average temperature ranging between min 41°F (5°C) and max 63.1°F (17.3°C). Observing a minor shift, the average high-temperature during April adjusts from March's 57.6°F (14.2°C) to a still refreshing 63.1°F (17.3°C). Weather in April »
Weather in May
May, the last month of the spring in Ukiah, is an agreeable month, with temperature in the range of an average high of 69.1°F (20.6°C) and an average low of 45.1°F (7.3°C). May's arrival brings a modest temperature shift, moving from a refreshing 63.1°F (17.3°C) in April to an agreeable 69.1°F (20.6°C). Weather in May »
Weather in June
June, the first month of the summer in Ukiah, is a warm month, with an average temperature varying between 78.1°F (25.6°C) and 50.5°F (10.3°C). Ukiah's transition into June sees a rise in the average high-temperature, advancing from an agreeable 69.1°F (20.6°C) in May to a warm 78.1°F (25.6°C). Weather in June »
Weather in July
July, like June, in Ukiah, California, is another warm summer month, with an average temperature ranging between min 53.6°F (12°C) and max 85.3°F (29.6°C). July stands out as Ukiah's warmest month, with an average high-temperature of 85.3°F (29.6°C) and a low-temperature of 53.6°F (12°C). The heat index value for July is computed to be a hot 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Ukiah, California, with an average temperature fluctuating between 53.4°F (11.9°C) and 84.7°F (29.3°C). The transition into August shows a subtle variation to a still moderately hot 84.7°F (29.3°C) from July's 85.3°F (29.6°C) in the average high-temperature. Weather in August »
Weather in September
September, the first month of the autumn in Ukiah, is still a warm month, with temperature in the range of an average high of 80.8°F (27.1°C) and an average low of 51.4°F (10.8°C). The advent of September observes an average high-temperature of a still warm 80.8°F (27.1°C), nearly identical to August's 84.7°F (29.3°C). Weather in September »
Weather in October
October, like September, is another pleasant autumn month in Ukiah, California, with an average temperature fluctuating between 72°F (22.2°C) and 47.1°F (8.4°C). As Ukiah enters October, the average high-temperature subtly lowers from the a moderately hot 80.8°F (27.1°C) of September to an agreeable 72°F (22.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Ukiah, is another refreshing month, with an average temperature varying between 40.3°F (4.6°C) and 61°F (16.1°C). Transition from October to November is accompanied by a temperature drop, with average high-temperatures decreasing from a pleasant 72°F (22.2°C) to a refreshing 61°F (16.1°C). Weather in November »
Weather in December
December, the first month of the winter in Ukiah, is still a cool month, with an average temperature ranging between max 53.6°F (12°C) and min 37.4°F (3°C). December tends to be the coldest month, with temperatures averaging a daily high of 53.6°F (12°C) and a low of 37.4°F (3°C). Weather in December »
Updated: Jun 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How much does it rain?
In Ukiah, during the entire year, the rain falls for 83.3 days and collects up to 17.72" (450mm) of precipitation.
When it does not snow?
January, March through December are months without snowfall.
How much does it snow?
In Ukiah, during the entire year, snow aggregates up to 0.04" (1mm).
What is the wettest month?
The months with the most rainfall are February and December, with an average 3.11" (79mm) of precipitation.
When does it snow?
The only month with snowfall is February.
When does it snow the most?
February is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.04" (1mm) of snow.
What are the months with the lowest UV index?
February and November, with an average maximum UV index of 2, are months with the lowest UV index.
What is the most humid month?
March is the most humid month, with an average relative humidity of 79%.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When are the longest days?
With an average of 14h and 54min of daylight, June has the longest days of the year in Ukiah.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What time of the year is the hottest?
July temperatures tend to peak at an average high of 85.3°F (29.6°C) and dip to a low of 53.6°F (12°C).
What are the least humid months?
July and September, with an average relative humidity of 58%, are the least humid months.
What is the driest month?
July and August are months with the least rain when the rain falls for 1.8 days and typically aggregates up to 0.08" (2mm) of rain.
What month has the most sunshine?
With an average of 12h of sunshine, July has the most sunshine of the year.
What are the coldest months?
December is the coldest month in Ukiah, with an average high-temperature of 53.6°F (12°C) and an average low-temperature of 37.4°F (3°C).
What is the month with the shortest days?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
What is the month with the least sunshine?
The month with the least sunshine is December, with an average of 5.3h of sunshine.
Average temperature
Ukiah, CA
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).
Average pressure
Ukiah, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed
Ukiah, CA
- Average wind speed in January:
4.6mph - Average wind speed in February:
5.1mph - Average wind speed in March:
5.3mph - Average wind speed in April:
5.5mph - Average wind speed in May:
5.5mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.4mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.2mph - Average wind speed in December:
4.5mph
The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity
Ukiah, CA
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).
Average rainfall
Ukiah, CA
- Average rainfall in January:
2.91" - Average rainfall in February:
3.11" - Average rainfall in March:
2.91" - Average rainfall in April:
1.02" - Average rainfall in May:
1.02" - Average rainfall in June:
0.2"
The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days
Ukiah, CA
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
8.6 days - Average rainfall days in May:
5.7 days - Average rainfall days in June:
2.9 days
- Average rainfall days in July:
1.8 days - Average rainfall days in August:
1.3 days - Average rainfall days in September:
2.5 days - Average rainfall days in October:
5.2 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).
Average snowfall
Ukiah, CA
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days
Ukiah, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0.3 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight / Average sunshine
Ukiah, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 3min - Average sunshine in February:
5h and 5min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 4min - Average sunshine in May:
10h and 3min - Average sunshine in June:
11h and 3min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 5min - Average sunshine in September:
10h and 5min - Average sunshine in October:
6h and 5min - Average sunshine in November:
6h and 2min - Average sunshine in December:
5h and 2min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days
Ukiah, CA
- Average sunshine days in January:
18.5 days - Average sunshine days in February:
17.1 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
19.8 days - Average sunshine days in May:
23 days - Average sunshine days in June:
25.8 days
- Average sunshine days in July:
28.5 days - Average sunshine days in August:
28.1 days - Average sunshine days in September:
26.9 days - Average sunshine days in October:
24.5 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
17.6 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).
Average UV index
Ukiah, CA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).
Average cloud cover
Ukiah, CA
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility
Ukiah, CA
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).
Ukiah, California, USA
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