Climate and monthly weather forecast
Mill Creek, CA

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Weather in January

January, like December, in Mill Creek, California, is another cold winter month, with temperature in the range of an average high of 40.5°F and an average low of 25.2°F. With the arrival of January, Mill Creek's average high-temperature registers at a still cold 40.5°F, indicating a subtle variation from the previous month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Mill Creek, California, with an average temperature ranging between min 25.2°F and max 40.8°F. As Mill Creek, California, steps into February, the average high-temperature holds at a still wintry 40.8°F, hinting at a minor fluctuation from the prior month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Mill Creek, California, with an average temperature fluctuating between 43.7°F and 27.5°F. Mill Creek marks the onset of March with an average high-temperature of a chilly 43.7°F, a subtle shift from February's 40.8°F. Weather in March »

Weather in April

April in Mill Creek, California, is a fresh spring month, with an average temperature fluctuating between 31.5°F and 51.6°F. The onset of April marks a slight increase in the average high-temperature, moving from a frosty 43.7°F in March to a fresh 51.6°F. Weather in April »

Weather in May

The last month of the spring, May, is a moderate month in Mill Creek, California, with an average temperature varying between 37.6°F and 60.3°F. As May arrives, a slight rise in the average high-temperature is observed, moving from a fresh 51.6°F in April to a mild 60.3°F. Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Mill Creek, California, with an average temperature varying between 44.4°F and 71.8°F. Mill Creek's weather in June shows a rise in the average high-temperature, moving up from May's refreshing 60.3°F to a pleasant 71.8°F. Weather in June »

Weather in July

July is a moderately hot summer month in Mill Creek, California, with temperature in the range of an average low of 49.5°F and an average high of 81.3°F. Mill Creek's July weather, with an average high temperature of 81.3°F and an average low temperature of 49.5°F, tends to be the warmest of the year. The heat index value for July is evaluated at 80.6°F. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Mill Creek, California, with an average temperature fluctuating between 48°F and 80.2°F. The ushering in of August brings an average high-temperature of a still warm 80.2°F, closely mirroring the 81.3°F of July. 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 and an average high of 73.4°F. The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 80.2°F in August to a still warm 73.4°F. Weather in September »

Weather in October

October, like September, is another mild autumn month in Mill Creek, California, with an average temperature ranging between max 60.6°F and min 36.5°F. Mill Creek's October weather features a mild decline in high-temperatures, reducing from a moderately hot 73.4°F in September to a moderate 60.6°F. Weather in October »

Weather in November

November, the last month of the autumn in Mill Creek, is also a frosty month, with an average temperature fluctuating between 29.1°F and 47.8°F. Arrival of November comes with a reduction in the average high-temperature, falling from a refreshing 60.6°F in October to a frosty 47.8°F. Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Mill Creek, California, with an average temperature fluctuating between 24.1°F and 38.3°F. Mill Creek's December weather, marked by an average high temperature of 38.3°F and an average low temperature of 24.1°F, is the coldest in the year. Weather in December »
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FAQ

How much 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" of precipitation.

When does it snow in Mill Creek?

January through June, September through December are months with snowfall.

How much does it snow in Mill Creek?

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

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

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

When is 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 in Mill Creek.

What is the most humid month in Mill Creek?

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

What is the wettest month in Mill Creek?

The month with the most rainfall is March, when the rain falls for 12.2 days and typically aggregates up to 5.59" of precipitation.

What is the snowiest month in Mill Creek?

The month with the most snowfall in Mill Creek is March, when snow falls for 14 days and typically aggregates up to 27.05" 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?

June has the longest days of the year in Mill Creek, with an average of 15h and 0min of daylight.

What is the hottest time of year in Mill Creek?

July stands out as Mill Creek's warmest month, with temperatures ranging between an average high of 81.3°F and a low of 49.5°F.

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 in Mill Creek is July, when the rain falls for 4.3 days and typically collects 0.39" of precipitation.

When it does not snow in Mill Creek?

July and August are months without snowfall.

What month has the most sunshine in Mill Creek?

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

When is the highest UV index in Mill Creek?

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

What are the coldest months in Mill Creek?

In Mill Creek, California, the average lowest temperatures are observed in December, with a high of 38.3°F and a low of 24.1°F.

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

The month with the shortest days in Mill Creek is December, with an average of 9h and 24min 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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Mill Creek, California, USA

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