Climate and monthly weather forecast
Mill Creek, CA

Weather in January

January, the same as December, is a wintry winter month in Mill Creek, California, with an average temperature fluctuating between 25.2°F (-3.8°C) and 40.5°F (4.7°C). In January, the average high-temperature is relatively the same as in December - a still cold 40.5°F (4.7°C). Weather in January »

Weather in February

February, the last month of the winter in Mill Creek, is also a wintry month, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 40.8°F (4.9°C). In Mill Creek, the average high-temperature in February is essentially the same as in January - a still cold 40.8°F (4.9°C). Weather in February »

Weather in March

March, the first month of the spring in Mill Creek, is a chilly month, with an average temperature varying between 27.5°F (-2.5°C) and 43.7°F (6.5°C). In Mill Creek, the average high-temperature in March is almost the same as in February - a chilly 43.7°F (6.5°C). Weather in March »

Weather in April

April in Mill Creek, California, is a fresh spring month, with an average temperature ranging between max 51.6°F (10.9°C) and min 31.5°F (-0.3°C). In Mill Creek, the average high-temperature in April marginally rises from a frosty 43.7°F (6.5°C) in March to a cool 51.6°F (10.9°C). Weather in April »

Weather in May

May, the last month of the spring in Mill Creek, is a moderate month, with an average temperature fluctuating between 37.6°F (3.1°C) and 60.3°F (15.7°C). In May, the average high-temperature slightly increases from a cool 51.6°F (10.9°C) in April to a moderate 60.3°F (15.7°C). Weather in May »

Weather in June

June, the first month of the summer in Mill Creek, is an agreeable month, with an average temperature ranging between max 71.8°F (22.1°C) and min 44.4°F (6.9°C). In June, the average high-temperature rises from a moderate 60.3°F (15.7°C) in May to a pleasant 71.8°F (22.1°C). Weather in June »

Weather in July

July in Mill Creek, California, is a warm summer month, with an average temperature ranging between min 49.5°F (9.7°C) and max 81.3°F (27.4°C). July is the warmest month, with an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 49.5°F (9.7°C). The average heat index in July is calculated to be 80.6°F (27°C). Weather in July »

Weather in August

August, the last month of the summer in Mill Creek, is another warm month, with an average temperature varying between 80.2°F (26.8°C) and 48°F (8.9°C). In Mill Creek, the average high-temperature in August is practically the same as in July - a still warm 80.2°F (26.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Mill Creek, California, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 73.4°F (23°C). In September, the average high-temperature slightly decreases from 80.2°F (26.8°C) in August to a still warm 73.4°F (23°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Mill Creek, California, with temperature in the range of an average high of 60.6°F (15.9°C) and an average low of 36.5°F (2.5°C). In Mill Creek, California, the average high-temperature in October drops from a warm 73.4°F (23°C) in September to a mild 60.6°F (15.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Mill Creek, is another chilly month, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 29.1°F (-1.6°C). In Mill Creek, the average high-temperature in November decreases from a mild 60.6°F (15.9°C) in October to a chilly 47.8°F (8.8°C). Weather in November »

Weather in December

December, the first month of the winter in Mill Creek, is also a wintry month, with an average temperature fluctuating between 38.3°F (3.5°C) and 24.1°F (-4.4°C). December is the coldest month, with an average high-temperature of 38.3°F (3.5°C) and an average low-temperature of 24.1°F (-4.4°C). Weather in December »
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FAQ

How many days does it rain in Mill Creek?

In Mill Creek, California, during the entire year, the rain falls for 98.1 days and collects up to 32.99" (838mm) of precipitation.

When does it snow in Mill Creek?

Months with snowfall in Mill Creek are January through June, September through December.

How much does it snow in Mill Creek?

In Mill Creek, during the entire year, snow falls for 66 days and aggregates up to 127.72" (3244mm) of snow.

What is the month with the least sunshine in Mill Creek?

January has the least sunshine of the year in Mill Creek, with an average of 5.1h of sunshine.

What are the months with the lowest UV index in Mill Creek?

February and November, with an average maximum UV index of 1, are months with the lowest UV index.

What is the most humid month in Mill Creek?

March is the most humid month in Mill Creek, California, with an average relative humidity of 83%.

What is the rainiest month in Mill Creek?

The month with the most rainfall in Mill Creek, California, is March, when the rain falls for 12.2 days and typically aggregates up to 5.59" (142mm) of precipitation.

What is the snowiest month in Mill Creek?

March is the month with the most snowfall in Mill Creek, California. Snow falls for 14 days and accumulates 27.05" (687mm) of snow.

When is Daylight Saving Time (DST) in Mill Creek?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Mill Creek, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from PDT to PST.

When are the longest days in Mill Creek?

The month with the longest days in Mill Creek is June, with an average of 15h and 0min of daylight.

What is the warmest month in Mill Creek?

The warmest month is July, with an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 49.5°F (9.7°C).

What is the least humid month in Mill Creek?

July is the least humid month, with an average relative humidity of 42%.

What is the driest month in Mill Creek?

The month with the least rainfall is July, when the rain falls for 4.3 days and typically collects 0.39" (10mm) of precipitation.

When it does not snow in Mill Creek?

In Mill Creek, California, snow does not fall in July and August.

What month has the most sunshine in Mill Creek?

July has the most sunshine of the year, with an average of 12.1h of sunshine.

What is the month with the highest UV index in Mill Creek?

The month with the highest UV index in Mill Creek is July, with an average maximum UV index of 6.

What is the coldest month in Mill Creek?

With an average high-temperature of 38.3°F (3.5°C) and an average low-temperature of 24.1°F (-4.4°C), December is the coldest month in Mill Creek, California.

What is the month with the shortest days in Mill Creek?

December has the shortest days of the year, with an average of 9h and 21min of daylight.

Average temperature
Mill Creek, CA

Average temperature - Mill Creek, CA

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is December (38.3°F).

The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).

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Average pressure
Mill Creek, CA

Average pressure - Mill Creek, CA

The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Mill Creek, CA

Average wind speed - Mill Creek, CA

The windiest month (with the highest average wind speed) is March (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average rainfall
Mill Creek, CA

Average rainfall - Mill Creek, CA

The wettest month (with the highest rainfall) is March (5.59").
The driest month (with the least rainfall) is July (0.39").

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Average rainfall days
Mill Creek, CA

Average rainfall days - Mill Creek, CA

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is August (4 days).

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Average snowfall
Mill Creek, CA

Average snowfall - Mill Creek, CA

The month with the highest snowfall is March (27.05").
The months with the least snowfall are July and August (0").

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Average snowfall days
Mill Creek, CA

Average snowfall days - Mill Creek, CA

The month with the highest number of snowfall days is March (14 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight / Average sunshine
Mill Creek, CA

Average daylight / Average sunshine - Mill Creek, CA

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

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

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Average sunshine days
Mill Creek, CA

Average sunshine days - Mill Creek, CA

The month with the most sunshine days is August (25 days).
The month with the least sunshine days is March (10.9 days).

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Average visibility
Mill Creek, CA

Average visibility - Mill Creek, CA

The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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