April weather forecast
Mill Creek, CA

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Weather in April

April in Mill Creek, California, is a cool spring month, with an average temperature varying between 31.5°F (-0.3°C) and 51.6°F (10.9°C).

Temperature

April signals a minor shift in the average high-temperature, moving from March's frosty 43.7°F (6.5°C) to a cool 51.6°F (10.9°C). Mill Creek usually reports an average low-temperature of 31.5°F (-0.3°C) during the month of April.

Humidity

In April, the average relative humidity is 74%.

Rainfall

In Mill Creek, California, in April, during 13 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Mill Creek, during the entire year, the rain falls for 98.1 days and collects up to 32.99" (838mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Mill Creek, in April, during 7.3 snowfall days, 9.61" (244mm) of snow is typically accumulated. In Mill Creek, during the entire year, snow falls for 66 days and aggregates up to 127.72" (3244mm) of snow.

Daylight

The average length of the day in April is 13h and 19min.
On the first day of April, sunrise is at 6:48 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:00 pm PDT.

Sunshine

In April, the average sunshine is 9.5h.

UV index

The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: In April, the average maximum UV index of 3 translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Experience reduced UV exposure by about half when donning a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature?

In April, in Mill Creek, the average high-temperature is 51.6°F (10.9°C), and the average low-temperature is 31.5°F (-0.3°C).

What is the average humidity in April?

In April, the average relative humidity in Mill Creek is 74%.

How many days does it rain in April?

In Mill Creek, California, during April, the rain falls for 13 days and regularly aggregates up to 2.8" (71mm) of precipitation.

How many days does it snow in April?

In Mill Creek, in April, during 7.3 snowfall days, 9.61" (244mm) of snow is typically accumulated.

How many hours of daylight does Mill Creek have in April?

In Mill Creek, the average day length in April is 13h and 19min.

When is the sunrise / sunset in April in Mill Creek?

On the first day of April, sunrise is at 6:48 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:00 pm PDT.

How many hours of sunshine does Mill Creek have in April?

The average sunshine duration in April is 9.5h.

What is the UV index intensity in April?

In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Mill Creek, CA

Average temperature in April - Mill Creek, CA
  • Average high temperature in April: 51.6°F

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).

  • Average low temperature in April: 31.5°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).

Average pressure in April
Mill Creek, CA

Average pressure in April - Mill Creek, CA
  • Average pressure in April: 30.01"Hg

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

Average wind speed in April
Mill Creek, CA

Average wind speed in April - Mill Creek, CA
  • Average wind speed in April: 6.5mph

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).

Average humidity in April
Mill Creek, CA

Average humidity in April - Mill Creek, CA
  • Average humidity in April: 74%

The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is July (42%).

Average rainfall in April
Mill Creek, CA

Average rainfall in April - Mill Creek, CA
  • Average rainfall in April: 2.8"

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

Average rainfall days in April
Mill Creek, CA

Average rainfall days in April - Mill Creek, CA
  • Average rainfall days in April: 13 days

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).

Average snowfall in April
Mill Creek, CA

Average snowfall in April - Mill Creek, CA
  • Average snowfall in April: 9.61"

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

Average snowfall days in April
Mill Creek, CA

Average snowfall days in April - Mill Creek, CA
  • Average snowfall days in April: 7.3 days

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).

Average daylight in April /
Average sunshine in April
Mill Creek, CA

Average daylight in April / Average sunshine in April - Mill Creek, CA
  • Average daylight in April: 13h and 2min

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).

  • Average sunshine in April: 9h and 3min

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).

Average sunshine days in April
Mill Creek, CA

Average sunshine days in April - Mill Creek, CA
  • Average sunshine days in April: 11.7 days

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

Average UV index in April
Mill Creek, CA

Average UV index in April - Mill Creek, CA
  • Average UV index in April: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and November (UV index 1).

Average cloud cover in April
Mill Creek, CA

Average cloud cover in April - Mill Creek, CA
  • Average cloud cover in April: 39

The month with the most cloud cover is March (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 7).

Average visibility in April
Mill Creek, CA

Average visibility in April - Mill Creek, CA
  • Average visibility in April: 5mi

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).

Mill Creek, California, USA

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