Climate and monthly weather forecast
Windsor, CA

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Weather in January

January, like December, is another refreshing winter month in Windsor, California, with an average temperature varying between 57.6°F (14.2°C) and 41.4°F (5.2°C). The commencement of January introduces an average high-temperature of a still moderate 57.6°F (14.2°C), closely mirroring the preceding month. Weather in January »

Weather in February

February, the last month of the winter in Windsor, is another mild month, with an average temperature varying between 41.2°F (5.1°C) and 59.4°F (15.2°C). Windsor's weather in February, with an average high-temperature of a still refreshing 59.4°F (15.2°C), subtly shifts from January's 57.6°F (14.2°C). Weather in February »

Weather in March

March, the first month of the spring in Windsor, is a refreshing month, with an average temperature ranging between max 60.8°F (16°C) and min 42.3°F (5.7°C). February's transformation into March witnesses an average high-temperature of an enjoyable 60.8°F (16°C), noting a minor change from the preceding month. Weather in March »

Weather in April

April, the same as March, is another refreshing spring month in Windsor, California, with an average temperature ranging between min 44.4°F (6.9°C) and max 66.6°F (19.2°C). The onset of April marks a slight increase in the average high-temperature, moving from a comfortable 60.8°F (16°C) in March to a still refreshing 66.6°F (19.2°C). Weather in April »

Weather in May

May, the last month of the spring in Windsor, is a pleasant month, with an average temperature ranging between min 47.7°F (8.7°C) and max 71.6°F (22°C). The shift from April to May is characterized by an average high-temperature of a pleasant 71.6°F (22°C), not significantly different from the 66.6°F (19.2°C) of April. Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Windsor, California, with an average temperature fluctuating between 79.3°F (26.3°C) and 52.7°F (11.5°C). A slight uplift in the average high-temperature marks June, adjusting from May's agreeable 71.6°F (22°C) to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Windsor, California, is a moderately hot summer month, with an average temperature ranging between min 54.1°F (12.3°C) and max 83.3°F (28.5°C). With the onset of July, Windsor's average high-temperature clocks in at a still moderately hot 83.3°F (28.5°C), showing a minor fluctuation from the previous month. Weather in July »

Weather in August

August, the last month of the summer in Windsor, is also a moderately hot month, with an average temperature ranging between min 54.3°F (12.4°C) and max 83.5°F (28.6°C). Windsor experiences its highest temperatures in August, with an average peak of 83.5°F (28.6°C) and a low of 54.3°F (12.4°C). For most parts of August, the heat index is evaluated at a tropical 87.8°F (31°C). Weather in August »

Weather in September

September, the first month of the autumn in Windsor, is also a moderately hot month, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 82.2°F (27.9°C). September begins with an average high-temperature of a still moderately hot 82.2°F (27.9°C), reflecting close similarity to the preceding month. Weather in September »

Weather in October

October, the same as September, is another warm autumn month in Windsor, California, with an average temperature fluctuating between 73.6°F (23.1°C) and 50.4°F (10.2°C). Windsor's progression into October involves a gentle drop in the average high-temperature, from a warm 82.2°F (27.9°C) in September to a still moderately hot 73.6°F (23.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Windsor, is another refreshing month, with an average temperature ranging between max 63.5°F (17.5°C) and min 44.4°F (6.9°C). The onset of November is marked by a decrease in temperature, transitioning from a warm 73.6°F (23.1°C) in October to a comfortable 63.5°F (17.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a mild month in Windsor, California, with an average temperature fluctuating between 55.8°F (13.2°C) and 40.5°F (4.7°C). In Windsor, December is the coldest month, with temperatures averaging a high of 55.8°F (13.2°C) and a low of 40.5°F (4.7°C). Weather in December »
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

Throughout the year, there are 80.5 rainfall days, and 17.6" (447mm) of precipitation is accumulated.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.

What is the wettest month?

The month with the most rainfall is February, when the rain falls for 9.4 days and typically aggregates up to 3.78" (96mm) of precipitation.

What is the most humid month?

The most humid month is March, with an average relative humidity of 76%.

When is Daylight Saving Time (DST)?

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.

When are the longest days?

The month with the longest days is June, with an average of 14h and 48min of daylight.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the driest month?

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

What month has the most sunshine?

With an average of 12h of sunshine, July has the most sunshine of the year in Windsor, California.

What month is the hottest in Windsor?

August tends to be the warmest month, with temperatures averaging a daily high of 83.5°F (28.6°C) and a low of 54.3°F (12.4°C).

What is the least humid month in Windsor?

With an average relative humidity of 58%, September is the least humid month.

What part of the year is the coldest?

In Windsor, the lowest temperatures are generally noted in December, averaging a high of 55.8°F (13.2°C) and a low of 40.5°F (4.7°C).

What is the month with the shortest days?

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

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 5.6h of sunshine.

Average temperature
Windsor, CA

Average temperature - Windsor, CA

The warmest month (with the highest average high temperature) is August (83.5°F).
The month with the lowest average high temperature is December (55.8°F).

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).

Average pressure
Windsor, CA

Average pressure - Windsor, CA

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
Windsor, CA

Average wind speed - Windsor, CA

The windiest month (with the highest average wind speed) is May (6.4mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

Average humidity
Windsor, CA

Average humidity - Windsor, CA

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (58%).

Average rainfall
Windsor, CA

Average rainfall - Windsor, CA

The wettest month (with the highest rainfall) is February (3.78").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days
Windsor, CA

Average rainfall days - Windsor, CA

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is July (1 days).

Average daylight / Average sunshine
Windsor, CA

Average daylight / Average sunshine - Windsor, CA

The month with the longest days is June (Average daylight: 14h and 48min).
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 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days
Windsor, CA

Average sunshine days - Windsor, CA

The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is March (15.3 days).

Average UV index
Windsor, CA

Average UV index - Windsor, CA

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average visibility
Windsor, CA

Average visibility - Windsor, 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).

Windsor, California, USA

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