Monthly weather forecast and climate
Mill Creek, CA

Weather in January

January, like December, in Mill Creek, California, is a wintry winter month, with average temperature varying between 25.2°F (-3.8°C) and 40.5°F (4.7°C). In January, the average high-temperature is almost 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 another cold month, with temperature in the range of an average high of 40.8°F (4.9°C) and an average low of 25.2°F (-3.8°C). In February, the average high-temperature is essentially the same as in January - a still wintry 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 average temperature varying between 27.5°F (-2.5°C) and 43.7°F (6.5°C). In March, the average high-temperature is almost the same as in February - a frosty 43.7°F (6.5°C). Weather in March »

Weather in April

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

Weather in May

The last month of the spring, May, is a moderate month in Mill Creek, California, with average temperature fluctuating between 37.6°F (3.1°C) and 60.3°F (15.7°C). In Mill Creek, California, the average high-temperature in May marginally rises, 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

The first month of the summer, June, is an agreeable month in Mill Creek, California, with average temperature varying between 44.4°F (6.9°C) and 71.8°F (22.1°C). In June, the average high-temperature increases, from a mild 60.3°F (15.7°C) in May, to an agreeable 71.8°F (22.1°C). Weather in June »

Weather in July

July is a warm summer month in Mill Creek, California, with average temperature varying between 81.3°F (27.4°C) and 49.5°F (9.7°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 81.1°F (27.3°C). Weather in July »

Weather in August

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

Weather in September

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

Weather in October

October, the same as September, in Mill Creek, California, is a moderate autumn month, with average temperature varying between 60.6°F (15.9°C) and 36.5°F (2.5°C). In October, the average high-temperature drops, from a moderately hot 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 also a frosty month, with average temperature varying between 29.1°F (-1.6°C) and 47.8°F (8.8°C). In Mill Creek, the average high-temperature drops, from a mild 60.6°F (15.9°C) in October, to a frosty 47.8°F (8.8°C). Weather in November »

Weather in December

December, the first month of the winter, in Mill Creek, is still a cold month, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 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, California, are January through June, September through December.

How many days 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, with an average of 5.1h of sunshine.

What is the month 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, with an average relative humidity of 83%.

What is the rainiest month in Mill Creek?

The month with the most rainfall in Mill Creek 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?

The month with the most snowfall in Mill Creek, California, is March when snow falls for 14 days and typically aggregates up to 27.05" (687mm) of snow.

When are the longest days in Mill Creek?

June has the longest days of the year in Mill Creek, California, with an average of 15h 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?

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

What is the driest month in Mill Creek?

July is the month with the least rainfall. Rain falls for 4.3 days and accumulates 0.39" (10mm) of precipitation.

When it does not snow in Mill Creek?

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

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, 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.

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

With an average of 9.3h of daylight, December has the shortest days of the year in Mill Creek.

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").
The month with the lowest atmospheric pressure is June (29.9").

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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").
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).
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).
The month with the shortest days is December (Average daylight: 9.3h).

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 5.1h).

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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

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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