January weather forecast
Colusa, CA

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The scenic setting of shrubs, forests, and a boat on the stunning blue waters of the Colusa River in California
The scenic setting of shrubs, forests, and a boat on the stunning blue waters of the Colusa River in California

Weather in January

January is a mild winter month in Colusa, California, with temperature in the range of an average high of 56.8°F (13.8°C) and an average low of 42.6°F (5.9°C).

Temperature

The beginning of January records an average high-temperature of a moderate 56.8°F (13.8°C), marking a negligible difference from December's 54.5°F (12.5°C). Throughout the month of January, the average temperature in Colusa dips to a cold 42.6°F (5.9°C) at night.

Humidity

In Colusa, the average relative humidity in January is 69%.

Rainfall

In Colusa, in January, it is raining for 7.5 days, with typically 0.94" (24mm) of accumulated precipitation. In Colusa, during the entire year, the rain falls for 58.9 days and collects up to 6.89" (175mm) of precipitation.

Snowfall

January is the only month when snow falls in Colusa. January is the month with the most snowfall in Colusa, with 0.12" (3mm) of accumulated snow.

Daylight

In Colusa, the average length of the day in January is 9h and 47min.
On the first day of January, sunrise is at 7:27 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:27 pm PST.

Sunshine

The average sunshine in January in Colusa is 5.9h.

UV index

In January, the average daily maximum UV index in Colusa is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In January, a daily maximum UV index of 4 leads to the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What is the temperature in January in Colusa?

The high-temperature, in January, in Colusa, is 56.8°F (13.8°C), while the low-temperature averages to 42.6°F (5.9°C).

What is the average humidity in January in Colusa?

In January, the average relative humidity in Colusa is 69%.

How many days does it rain in January in Colusa?

In Colusa, in January, during 7.5 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

What is the snowiest month in Colusa?

The month with the most snowfall is January, when 0.12" (3mm) of snow is typically aggregated.

When does it start to snow in Colusa?

January is the first month it typically snows. Throughout January, Colusa receives 0.12" (3mm) of snow.

How many hours of daylight does Colusa have in January?

The average day length in January in Colusa, California, is 9h and 47min.

What time are sunrise and sunset in January in Colusa?

In January, on the first day of the month, sunrise is at 7:27 am and sunset at 4:55 pm. On the last day of the month, in Colusa, sunrise is at 7:15 am and sunset at 5:27 pm PST.

How long on average sun shines in January in Colusa?

In January, the average sunshine duration in Colusa, California, is 5.9h.

What is the UV index reading in January in Colusa?

In January, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Colusa, CA

Average temperature in January - Colusa, CA
  • Average high temperature in January: 56.8°F

The warmest month (with the highest average high temperature) is July (98.8°F).
The month with the lowest average high temperature is December (54.5°F).

  • Average low temperature in January: 42.6°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).

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Average pressure in January
Colusa, CA

Average pressure in January - Colusa, CA
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in January
Colusa, CA

Average wind speed in January - Colusa, CA
  • Average wind speed in January: 5.5mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in January
Colusa, CA

Average humidity in January - Colusa, CA
  • Average humidity in January: 69%

The month with the highest relative humidity is March (71%).
The month with the lowest relative humidity is September (36%).

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Average rainfall in January
Colusa, CA

Average rainfall in January - Colusa, CA
  • Average rainfall in January: 0.94"

The wettest months (with the highest rainfall) are February and December (1.3").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in January
Colusa, CA

Average rainfall days in January - Colusa, CA
  • Average rainfall days in January: 7.5 days

The month with the highest number of rainy days is March (10.4 days).
The month with the least rainy days is July (1 days).

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Average snowfall in January
Colusa, CA

Average snowfall in January - Colusa, CA
  • Average snowfall in January: 0.1"

The month with the highest snowfall is January (0.1").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average daylight in January /
Average sunshine in January
Colusa, CA

Average daylight in January / Average sunshine in January - Colusa, 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 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in January
Colusa, CA

Average sunshine days in January - Colusa, CA
  • Average sunshine days in January: 22.7 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (19.7 days).

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Average UV index in January
Colusa, CA

Average UV index in January - Colusa, CA
  • Average UV index in January: 4

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in January
Colusa, CA

Average cloud cover in January - Colusa, CA
  • Average cloud cover in January: 35

The months with the most cloud cover are March and December (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in January
Colusa, CA

Average visibility in January - Colusa, CA
  • Average visibility in January: 6mi

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).

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Colusa, California, USA

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