January weather forecast
Ukiah Rancheria, CA

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Weather in January

January, the same as December, is another fresh winter month in Ukiah Rancheria, California, with an average temperature fluctuating between 55.2°F (12.9°C) and 38.8°F (3.8°C).

Temperature

Ukiah Rancheria notes an average high-temperature of a still fresh 55.2°F (12.9°C) in January, hardly diverging from December. Ukiah Rancheria records a steady low-temperature average of 38.8°F (3.8°C) during January.

Humidity

In January, the average relative humidity is 75%.

Rainfall

In January, the rain falls for 11.3 days. Throughout January, 2.91" (74mm) of precipitation is accumulated. In Ukiah Rancheria, during the entire year, the rain falls for 83.3 days and collects up to 17.72" (450mm) of precipitation.

Snowfall

In Ukiah Rancheria, snow does not fall in January, March through December.

Daylight

In Ukiah Rancheria, the average length of the day in January is 9h and 48min.
On the first day of the month, sunrise is at 7:31 am and sunset at 5:00 pm. On the last day of January, in Ukiah Rancheria, sunrise is at 7:20 am and sunset at 5:31 pm PST.

Sunshine

In January, the average sunshine is 5.5h.

UV index

In January, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 3 in January leads to these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. To protect against the Sun's most potent rays, avoid direct exposure around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

What are the temperatures in January?

In Ukiah Rancheria, 55.2°F (12.9°C) is the average high-temperature and 38.8°F (3.8°C) is the average low-temperature during January.

What is the average humidity in January?

The average relative humidity in January is 75%.

How much does it rain in January?

In Ukiah Rancheria, during January, the rain falls for 11.3 days and regularly aggregates up to 2.91" (74mm) of precipitation.

When it does not snow?

In Ukiah Rancheria, snow does not fall in January, March through December.

Does it snow in January?

In Ukiah Rancheria, in January, it doesn't snow. In February, it regularly snows.

What is the average length of the day in January?

In Ukiah Rancheria, the average day length in January is 9h and 48min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:31 am and sunset at 5:00 pm. On the last day of the month, in Ukiah Rancheria, sunrise is at 7:20 am and sunset at 5:31 pm PST.

How many hours of sunshine does Ukiah Rancheria have in January?

The average sunshine duration in January in Ukiah Rancheria is 5.5h.

What is the UV index reading in January?

In January, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Ukiah Rancheria, CA

Average temperature in January - Ukiah Rancheria, CA
  • Average high temperature in January: 55.2°F

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).

  • Average low temperature in January: 38.8°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 in January
Ukiah Rancheria, CA

Average pressure in January - Ukiah Rancheria, CA
  • Average pressure in January: 30.13"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 in January
Ukiah Rancheria, CA

Average wind speed in January - Ukiah Rancheria, CA
  • Average wind speed in January: 4.6mph

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 in January
Ukiah Rancheria, CA

Average humidity in January - Ukiah Rancheria, CA
  • Average humidity in January: 75%

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).

Average rainfall in January
Ukiah Rancheria, CA

Average rainfall in January - Ukiah Rancheria, CA
  • Average rainfall in January: 2.91"

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 in January
Ukiah Rancheria, CA

Average rainfall days in January - Ukiah Rancheria, CA
  • Average rainfall days in January: 11.3 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 in January
Ukiah Rancheria, CA

Average snowfall in January - Ukiah Rancheria, CA
  • Average snowfall in January: 0"

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 in January
Ukiah Rancheria, CA

Average snowfall days in January - Ukiah Rancheria, CA
  • Average snowfall days in January: 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 in January /
Average sunshine in January
Ukiah Rancheria, CA

Average daylight in January / Average sunshine in January - Ukiah Rancheria, CA
  • Average daylight in January: 9h and 5min

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

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 in January
Ukiah Rancheria, CA

Average sunshine days in January - Ukiah Rancheria, CA
  • Average sunshine days in January: 18.5 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 in January
Ukiah Rancheria, CA

Average UV index in January - Ukiah Rancheria, CA
  • Average UV index in January: 3

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 in January
Ukiah Rancheria, CA

Average cloud cover in January - Ukiah Rancheria, CA
  • Average cloud cover in January: 42

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 in January
Ukiah Rancheria, CA

Average visibility in January - Ukiah Rancheria, CA
  • Average visibility in January: 5mi

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 Rancheria, California, USA

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