Monthly weather forecast and climate
Windsor, CA

Weather in January

January, the same as December, in Windsor, California, is a moderate winter month, with temperature in the range of an average high of 57.6°F (14.2°C) and an average low of 41.4°F (5.2°C). In Windsor, the average high-temperature is practically the same as in December - a still mild 57.6°F (14.2°C). Weather in January »

Weather in February

February, the last month of the winter, in Windsor, is another mild month, with temperature in the range of an average low of 41.2°F (5.1°C) and an average high of 59.4°F (15.2°C). In Windsor, the average high-temperature is practically the same as in January - a still moderate 59.4°F (15.2°C). Weather in February »

Weather in March

The first month of the spring, March, is a comfortable month in Windsor, California, with average temperature ranging between max 60.8°F (16°C) and min 42.3°F (5.7°C). In Windsor, California, the average high-temperature is relatively the same as in February - an enjoyable 60.8°F (16°C). Weather in March »

Weather in April

April, the same as March, is another enjoyable spring month in Windsor, California, with temperature in the range of an average low of 44.4°F (6.9°C) and an average high of 66.6°F (19.2°C). In April, the average high-temperature slightly increases, from 60.8°F (16°C) in March, to a still comfortable 66.6°F (19.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Windsor, California, with average temperature ranging between min 47.7°F (8.7°C) and max 71.6°F (22°C). In Windsor, the average high-temperature is almost the same as in April - a pleasant 71.6°F (22°C). Weather in May »

Weather in June

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

Weather in July

July, the same as June, is another warm summer month in Windsor, California, with average temperature fluctuating between 83.3°F (28.5°C) and 54.1°F (12.3°C). In Windsor, the average high-temperature is almost the same as in June - a still warm 83.3°F (28.5°C). Weather in July »

Weather in August

August, the last month of the summer, in Windsor, is another warm month, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 83.5°F (28.6°C). With an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 54.3°F (12.4°C), August is the warmest month. In August, the average heat index is calculated to a hot 87.3°F (30.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Windsor, California, with average temperature ranging between min 53.6°F (12°C) and max 82.2°F (27.9°C). In September, the average high-temperature is relatively the same as in August - a still warm 82.2°F (27.9°C). Weather in September »

Weather in October

October, like September, in Windsor, California, is another warm autumn month, with temperature in the range of an average low of 50.4°F (10.2°C) and an average high of 73.6°F (23.1°C). In October, the average high-temperature slightly decreases, from 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 also an enjoyable month, with temperature in the range of an average high of 63.5°F (17.5°C) and an average low of 44.4°F (6.9°C). In November, the average high-temperature drops, from a moderately hot 73.6°F (23.1°C) in October, to an enjoyable 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 temperature in the range of an average high of 55.8°F (13.2°C) and an average low of 40.5°F (4.7°C). The coldest month is December, with an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 40.5°F (4.7°C). Weather in December »
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FAQ

How much does it rain in Windsor?

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

When is the lowest UV index in Windsor?

Months with the lowest UV index in Windsor are January, February, November and December, with an average maximum UV index of 3.

What is the wettest month in Windsor?

February is the month with the most rainfall in Windsor, California. Rain falls for 9.4 days and accumulates 3.78" (96mm) of precipitation.

What is the most humid month in Windsor?

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

When are the longest days in Windsor?

The month with the longest days is June, with an average of 14.8h of daylight.

What are the months with the highest UV index in Windsor?

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

What is the driest month in Windsor?

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

What month has the most sunshine in Windsor?

July has the most sunshine of the year, with an average of 12h of sunshine.

What is the warmest month in Windsor?

August is the warmest month in Windsor, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature 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 in Windsor, California.

What is the coldest month in Windsor?

December is the coldest month, with an average high-temperature of 55.8°F (13.2°C) and an average low-temperature of 40.5°F (4.7°C).

What is the month with the shortest days in Windsor?

With an average of 9.5h of daylight, December has the shortest days of the year in Windsor.

What is the month with the least sunshine in Windsor?

December has the least sunshine of the year, 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).

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Average pressure
Windsor, CA

Average pressure - Windsor, CA

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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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).

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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").

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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).

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Average daylight / Average sunshine
Windsor, CA

Average daylight / Average sunshine - Windsor, CA

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.6h).

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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).

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Average UV index
Windsor, CA

Average UV index - Windsor, CA

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

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Average visibility
Windsor, CA

Average visibility - Windsor, 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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