Climate and monthly weather forecastUkiah, OR
Climate and monthly weather forecast
Weather in January
January, like December, in Ukiah, Oregon, is a wintry winter month, with an average temperature varying between 38.8°F (3.8°C) and 27.5°F (-2.5°C). Ukiah marks the start of January with an average high-temperature of a still wintry 38.8°F (3.8°C), hinting at a slight fluctuation from December's 36.7°F (2.6°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Ukiah, Oregon, with an average temperature varying between 29.5°F (-1.4°C) and 40.6°F (4.8°C). At the onset of February, Ukiah records an average high-temperature of a still wintry 40.6°F (4.8°C), showing little deviation from the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Ukiah, Oregon, with temperature in the range of an average low of 33.4°F (0.8°C) and an average high of 47.7°F (8.7°C). The onset of March marks a slight increase in the average high-temperature, moving from a cold 40.6°F (4.8°C) in February to a frosty 47.7°F (8.7°C). Weather in March »Weather in April
April in Ukiah, Oregon, is a cool spring month, with an average temperature ranging between max 54.9°F (12.7°C) and min 37.8°F (3.2°C). With the onset of April, Ukiah experiences a subtle temperature shift, with the average high-temperature moving from a chilly 47.7°F (8.7°C) in March to a fresh 54.9°F (12.7°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Ukiah, Oregon, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 64°F (17.8°C). An increase in the average high-temperature marks May, moving from April's fresh 54.9°F (12.7°C) to an enjoyable 64°F (17.8°C). Weather in May »Weather in June
June, the first month of the summer in Ukiah, is an agreeable month, with temperature in the range of an average low of 50.5°F (10.3°C) and an average high of 71.1°F (21.7°C). As Ukiah transitions into June, a marginal rise in the average high-temperature is observed, moving from an enjoyable 64°F (17.8°C) in May to an agreeable 71.1°F (21.7°C). Weather in June »Weather in July
July is a warm summer month in Ukiah, Oregon, with an average temperature fluctuating between 57.9°F (14.4°C) and 81.5°F (27.5°C). The months of July and August are noted for their peak temperatures, with an average high-temperature of 81.5°F (27.5°C). The heat index value for July is computed to be 80.6°F (27°C). Weather in July »Weather in August
August, the last month of the summer in Ukiah, is also a moderately hot month, with an average temperature fluctuating between 59.5°F (15.3°C) and 81.5°F (27.5°C). During July and August, Ukiah experiences its peak temperatures, averaging a high-temperature of 81.5°F (27.5°C). Throughout August, the heat index is computed to be 80.6°F (27°C). Weather in August »Weather in September
September, the first month of the autumn in Ukiah, is still a pleasant month, with an average temperature varying between 71.8°F (22.1°C) and 52.3°F (11.3°C). September brings a decrease in the average high-temperature, falling from August's moderately hot 81.5°F (27.5°C) to a pleasant 71.8°F (22.1°C). Weather in September »Weather in October
October, the same as September, in Ukiah, Oregon, is another mild autumn month, with an average temperature ranging between max 58.3°F (14.6°C) and min 42.4°F (5.8°C). In the transition to October, Ukiah observes a drop in the average high-temperature, moving from an agreeable 71.8°F (22.1°C) in September to a mild 58.3°F (14.6°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Ukiah, Oregon, with an average temperature fluctuating between 33.8°F (1°C) and 46°F (7.8°C). November brings a minor decrease, with the average high-temperature reducing from a moderate 58.3°F (14.6°C) in October to a chilly 46°F (7.8°C). Weather in November »Weather in December
December, the first month of the winter in Ukiah, is also a wintry month, with an average temperature fluctuating between 36.7°F (2.6°C) and 25.7°F (-3.5°C). Ukiah experiences its lowest temperatures in December, with an average peak of 36.7°F (2.6°C) and a low of 25.7°F (-3.5°C). Weather in December »Updated: Jun 4, 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
January is the most humid month, with an average relative humidity of 80%.
In Ukiah, during the entire year, the rain falls for 145.3 days and collects up to 16.69" (424mm) of precipitation.
Months with snowfall are January through May, September through December.
Throughout the year, there are 30.7 snowfall days, and 15.51" (394mm) of snow is accumulated.
With an average of 5h of sunshine, January has the least sunshine of the year.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
February is the month with the most snowfall. Snow falls for 7.8 days and accumulates 5.24" (133mm) of snow.
March is the month with the most rainfall. Rain falls for 18.4 days and accumulates 2.2" (56mm) of precipitation.
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.
In Ukiah, Oregon, snow does not fall in June through August.
With an average of 15h and 36min of daylight, June has the longest days of the year.
Ukiah sees the average highest temperatures during the months of July and August, peaking at 81.5°F (27.5°C).
The month with the least rainfall is July, when the rain falls for 4.5 days and typically collects 0.2" (5mm) of precipitation.
With an average maximum UV index of 6, July is the month with the highest UV index.
The least humid month is August, with an average relative humidity of 41%.
With an average of 12h of sunshine, August has the most sunshine of the year.
In Ukiah, December records the average lowest temperatures, peaking at 36.7°F (2.6°C) and reaching a low of 25.7°F (-3.5°C).
The month with the shortest days is December, with an average of 8h and 48min of daylight.
Average temperature
Ukiah, OR
The warmest months (with the highest average high temperature) are July and August (81.5°F).
The month with the lowest average high temperature is December (36.7°F).
The month with the highest average low temperature is August (59.5°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).
Average pressure
Ukiah, OR
- Average pressure in January:
30.2"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.17"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed
Ukiah, OR
- Average wind speed in January:
7.1mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.9mph - Average wind speed in April:
8.3mph - Average wind speed in May:
7.3mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.6mph - Average wind speed in September:
6.2mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.1mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity
Ukiah, OR
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (41%).
Average rainfall
Ukiah, OR
- Average rainfall in January:
1.85" - Average rainfall in February:
1.93" - Average rainfall in March:
2.2" - Average rainfall in April:
1.81" - Average rainfall in May:
1.61" - Average rainfall in June:
1.14"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.28" - Average rainfall in September:
0.55" - Average rainfall in October:
1.42" - Average rainfall in November:
1.61" - Average rainfall in December:
2.09"
The wettest month (with the highest rainfall) is March (2.2").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days
Ukiah, OR
- Average rainfall days in January:
15.6 days - Average rainfall days in February:
15 days - Average rainfall days in March:
18.4 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
9.9 days
- Average rainfall days in July:
4.5 days - Average rainfall days in August:
3.5 days - Average rainfall days in September:
6.7 days - Average rainfall days in October:
12.3 days - Average rainfall days in November:
14.4 days - Average rainfall days in December:
14.4 days
The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (3.5 days).
Average snowfall
Ukiah, OR
- Average snowfall in January:
2.76" - Average snowfall in February:
5.24" - Average snowfall in March:
2.01" - Average snowfall in April:
0.35" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Ukiah, OR
- Average snowfall days in January:
5.6 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
4.4 days - Average snowfall days in April:
1.4 days - Average snowfall days in May:
0.2 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:
0.2 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
8.3 days
The month with the highest number of snowfall days is December (8.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Ukiah, OR
- Average daylight in January:
9h and 12min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 54min - Average daylight in June:
15h and 36min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
5h - Average sunshine in February:
5h and 12min - Average sunshine in March:
7h - Average sunshine in April:
9h and 48min - Average sunshine in May:
10h and 36min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
11h and 54min - Average sunshine in August:
12h - Average sunshine in September:
10h and 30min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 6min
The month with the most sunshine is August (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 5h).
Average sunshine days
Ukiah, OR
- Average sunshine days in January:
12.2 days - Average sunshine days in February:
8.7 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
13.7 days - Average sunshine days in June:
17.8 days
- Average sunshine days in July:
24.5 days - Average sunshine days in August:
24.8 days - Average sunshine days in September:
21.5 days - Average sunshine days in October:
17 days - Average sunshine days in November:
12.6 days - Average sunshine days in December:
11.6 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is February (8.7 days).
Average UV index
Ukiah, OR
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Ukiah, OR
The months with the most cloud cover are January and February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility
Ukiah, OR
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
