Monthly weather forecast and climate
Colusa, CA

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 moderate winter month in Colusa, California, with average temperature ranging between max 56.8°F (13.8°C) and min 42.6°F (5.9°C). In Colusa, the average high-temperature is practically the same as in December - a moderate 56.8°F (13.8°C). Weather in January »

Weather in February

The last month of the winter, February, is another mild month in Colusa, California, with average temperature varying between 43°F (6.1°C) and 59.7°F (15.4°C). In February, the average high-temperature is practically the same as in January - a still mild 59.7°F (15.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Colusa, California, with average temperature ranging between min 44.4°F (6.9°C) and max 64°F (17.8°C). In March, the average high-temperature is almost the same as in February - a comfortable 64°F (17.8°C). Weather in March »

Weather in April

April is an agreeable spring month in Colusa, California, with average temperature varying between 71.6°F (22°C) and 48.6°F (9.2°C). In Colusa, the average high-temperature marginally rises, from an enjoyable 64°F (17.8°C) in March, to a pleasant 71.6°F (22°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Colusa, California, with average temperature varying between 54.1°F (12.3°C) and 80.4°F (26.9°C). In May, the average high-temperature slightly increases, from a pleasant 71.6°F (22°C) in April, to a moderately hot 80.4°F (26.9°C). Weather in May »

Weather in June

June, the first month of the summer, in Colusa, is a tropical month, with average temperature varying between 91.2°F (32.9°C) and 60.3°F (15.7°C). In June, the average high-temperature increases, from a warm 80.4°F (26.9°C) in May, to a hot 91.2°F (32.9°C). Weather in June »

Weather in July

July in Colusa, California, is a sweltering summer month, with average temperature ranging between max 98.8°F (37.1°C) and min 61.5°F (16.4°C). July is the warmest month, with an average high-temperature of 98.8°F (37.1°C) and an average low-temperature of 61.5°F (16.4°C). Weather in July »

Weather in August

The last month of the summer, August, is also a sweltering month in Colusa, California, with average temperature ranging between min 61.3°F (16.3°C) and max 97°F (36.1°C). In Colusa, California, the average high-temperature is essentially the same as in July - a still sweltering 97°F (36.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a hot month in Colusa, California, with average temperature ranging between min 61°F (16.1°C) and max 90.7°F (32.6°C). In September, the average high-temperature slightly decreases, from a sweltering 97°F (36.1°C) in August, to a tropical 90.7°F (32.6°C). Weather in September »

Weather in October

October, like September, in Colusa, California, is another warm autumn month, with average temperature fluctuating between 77.5°F (25.3°C) and 54.9°F (12.7°C). In Colusa, the average high-temperature in October decreases, from a tropical 90.7°F (32.6°C) in September, to a warm 77.5°F (25.3°C). Weather in October »

Weather in November

November, the last month of the autumn, in Colusa, is another comfortable month, with average temperature varying between 63.9°F (17.7°C) and 47.3°F (8.5°C). In Colusa, the average high-temperature drops, from a warm 77.5°F (25.3°C) in October, to a comfortable 63.9°F (17.7°C). Weather in November »

Weather in December

December, the first month of the winter, in Colusa, is also a fresh month, with temperature in the range of an average low of 42.1°F (5.6°C) and an average high of 54.5°F (12.5°C). The coldest month is December, with an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 42.1°F (5.6°C). Weather in December »
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FAQ

How many days does it rain in Colusa?

Throughout the year, in Colusa, California, there are 58.9 rainfall days, and 6.89" (175mm) of precipitation is accumulated.

When does it snow in Colusa?

The only month with snowfall is January.

How much does it snow in Colusa?

In Colusa, during the entire year, snow aggregates up to 0.1" (2.5mm).

What is the snowiest month in Colusa?

January is the month with the most snowfall, with 0.1" (2.5mm) of accumulated snow.

What is the wettest month in Colusa?

The wettest months in Colusa are February and December, with an average 1.3" (33mm) of rainfall.

When it does not snow in Colusa?

In Colusa, California, snow does not fall in February through December.

When is the lowest UV index in Colusa?

February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Colusa, California.

What is the most humid month in Colusa?

The most humid month in Colusa, California, is March, with an average relative humidity of 71%.

When are the longest days in Colusa?

The month with the longest days is June, with an average of 14.9h of daylight.

When is the highest UV index in Colusa?

Months with the highest UV index in Colusa, California, are June through August, with an average maximum UV index of 7.

What is the warmest month in Colusa?

The warmest month in Colusa, California, is July, with an average high-temperature of 98.8°F (37.1°C) and an average low-temperature of 61.5°F (16.4°C).

What is the driest month in Colusa?

July and August are months with the least rain in Colusa when the rain falls for 1 days and typically aggregates up to 0.04" (1mm) of rain.

What month has the most sunshine in Colusa?

With an average of 12.1h of sunshine, July has the most sunshine of the year in Colusa.

What is the least humid month in Colusa?

With an average relative humidity of 36%, September is the least humid month.

What is the coldest month in Colusa?

The coldest month is December, with an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 42.1°F (5.6°C).

What is the month with the shortest days in Colusa?

The month with the shortest days in Colusa is December, with an average of 9.5h of daylight.

What is the month with the least sunshine in Colusa?

With an average of 5.8h of sunshine, December has the least sunshine of the year in Colusa, California.

Average temperature
Colusa, CA

Average temperature - Colusa, CA

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).

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
Colusa, CA

Average pressure - Colusa, CA

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

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Average wind speed
Colusa, CA

Average wind speed - Colusa, CA

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 rainfall
Colusa, CA

Average rainfall - Colusa, CA

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
Colusa, CA

Average rainfall days - Colusa, CA

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
Colusa, CA

Average snowfall - Colusa, CA

The month with the highest snowfall is January (0.1").
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 / Average sunshine
Colusa, CA

Average daylight / Average sunshine - Colusa, CA

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days
Colusa, CA

Average sunshine days - Colusa, CA

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
Colusa, CA

Average UV index - Colusa, CA

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

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Average visibility
Colusa, CA

Average visibility - Colusa, CA

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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