Climate and monthly weather forecastColusa, CA

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

Climate and monthly weather forecast

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). 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). Weather in January »

Weather in February

The last month of the winter, February, is another mild month in Colusa, California, with an average temperature fluctuating between 43°F (6.1°C) and 59.7°F (15.4°C). The arrival of February is marked by an average high-temperature of a still moderate 59.7°F (15.4°C), bearing a close resemblance to January. Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Colusa, California, with an average temperature ranging between min 44.4°F (6.9°C) and max 64°F (17.8°C). Shifting into March, Colusa records an average high-temperature of a comfortable 64°F (17.8°C), presenting minor fluctuations compared to the previous month. Weather in March »

Weather in April

April in Colusa, California, is a pleasant spring month, with an average temperature varying between 48.6°F (9.2°C) and 71.6°F (22°C). The transition from March to April brings a subtle temperature rise, with average high-temperatures increasing from a comfortable 64°F (17.8°C) to an agreeable 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 an average temperature ranging between max 80.4°F (26.9°C) and min 54.1°F (12.3°C). The shift from April to May sees a slight increase in the average high-temperature, transitioning from a pleasant 71.6°F (22°C) 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 an average temperature varying between 60.3°F (15.7°C) and 91.2°F (32.9°C). June's arrival coincides with a temperature rise, moving from May's warm 80.4°F (26.9°C) to a hot 91.2°F (32.9°C). Weather in June »

Weather in July

July in Colusa, California, is a very hot summer month, with an average temperature fluctuating between 98.8°F (37.1°C) and 61.5°F (16.4°C). Colusa's July weather reaches an average high of 98.8°F (37.1°C) and an average low of 61.5°F (16.4°C), making it the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is another torrid month in Colusa, California, with an average temperature varying between 97°F (36.1°C) and 61.3°F (16.3°C). August's arrival brings an average high-temperature of a still fiery hot 97°F (36.1°C), demonstrating subtle variation from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Colusa, is still a hot month, with an average temperature ranging between min 61°F (16.1°C) and max 90.7°F (32.6°C). September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a torrid 97°F (36.1°C) in August to a hot 90.7°F (32.6°C). Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Colusa, California, with an average temperature varying between 77.5°F (25.3°C) and 54.9°F (12.7°C). Welcoming October, Colusa observes a shift in the average high-temperature, falling from September's hot 90.7°F (32.6°C) to a warm 77.5°F (25.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another comfortable month in Colusa, California, with an average temperature ranging between min 47.3°F (8.5°C) and max 63.9°F (17.7°C). The start of November signals a decrease in the average high-temperature, transitioning from a moderately hot 77.5°F (25.3°C) in October to a comfortable 63.9°F (17.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Colusa, California, with an average temperature varying between 54.5°F (12.5°C) and 42.1°F (5.6°C). December, having an average high-temperature of 54.5°F (12.5°C) and an average low-temperature of 42.1°F (5.6°C), is the coldest month. Weather in December »

Frequently asked questions

In Colusa, during the entire year, the rain falls for 58.9 days and collects up to 6.89" (175mm) of precipitation.

January is the only month when snow falls.

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

In Colusa, during the entire year, snow aggregates up to 0.12" (3mm).

The months with the most rainfall are February and December, with an average 1.3" (33mm) of precipitation.

February through December are months without snowfall.

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

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

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.

The month with the longest days in Colusa is June, with an average of 14h and 54min of daylight.

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

In Colusa, July is the warmest month, with temperatures averaging a high of 98.8°F (37.1°C) and a low of 61.5°F (16.4°C).

The months with the least rainfall in Colusa are July and August Rain falls for 1 days and accumulates 0.04" (1mm) of rain.

The month with the most sunshine in Colusa, California, is July, with an average of 12.1h of sunshine.

The least humid month in Colusa is September, with an average relative humidity of 36%.

Colusa experiences its average lowest temperatures in December, reaching a peak of 54.5°F (12.5°C) and a minimum of 42.1°F (5.6°C).

With an average of 9h and 30min of daylight, December has the shortest days of the year.

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

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).

Average pressure
Colusa, CA

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

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).

Average humidity
Colusa, CA

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

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").

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).

Average snowfall
Colusa, CA

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").

Average daylight / Average sunshine
Colusa, CA

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).

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).

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).

Average UV index
Colusa, CA

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).

Average cloud cover
Colusa, CA

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).

Average visibility
Colusa, CA

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).