April weather forecast
Alta Loma, CA

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Weather in April

April in Alta Loma, California, is an agreeable spring month, with an average temperature varying between 50.2°F (10.1°C) and 72.9°F (22.7°C).

Temperature

In April, Alta Loma experiences a minor shift in meteorological conditions with average high-temperatures marked at an agreeable 72.9°F (22.7°C), closely mirroring the climate in March. Contrasting the daytime warmth, Alta Loma's April nights cool down to an average of 50.2°F (10.1°C).

Humidity

In Alta Loma, the average relative humidity in April is 51%.

Rainfall

In Alta Loma, in April, it is raining for 5.9 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, in Alta Loma, there are 50.5 rainfall days, and 7.56" (192mm) of precipitation is accumulated.

Daylight

In Alta Loma, the average length of the day in April is 13h and 4min.
On the first day of April, sunrise is at 6:36 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:34 pm PDT.

Sunshine

In April, the average sunshine in Alta Loma, California, is 11.4h.

UV index

The average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In April, the average maximum UV index of 5 translates into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What is the average April temperature in Alta Loma?

In Alta Loma, 72.9°F (22.7°C) is the average high-temperature and 50.2°F (10.1°C) is the average low-temperature during April.

What is the average humidity in April in Alta Loma?

In April, the average relative humidity in Alta Loma is 51%.

How many days does it rain in April in Alta Loma?

In April, the rain falls for 5.9 days. Throughout April, 0.71" (18mm) of precipitation is accumulated.

How many hours of daylight does Alta Loma have in April?

In April, the average day length is 13h and 4min.

When are sunrise and sunset in April in Alta Loma?

In April, on the first day of the month, sunrise is at 6:36 am and sunset at 7:11 pm. On the last day of the month, in Alta Loma, California, sunrise is at 6:01 am and sunset at 7:34 pm PDT.

How long on average sun shines in April in Alta Loma?

The average sunshine duration in April is 11.4h.

What is the UV index intensity in April in Alta Loma?

The average daily maximum UV index in April in Alta Loma is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Alta Loma, CA

Average temperature in April - Alta Loma, CA
  • Average high temperature in April: 72.9°F

The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is December (61.3°F).

  • Average low temperature in April: 50.2°F

The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is February (45.1°F).

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Average pressure in April
Alta Loma, CA

Average pressure in April - Alta Loma, CA
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in April
Alta Loma, CA

Average wind speed in April - Alta Loma, CA
  • Average wind speed in April: 5.9mph

The windiest months (with the highest average wind speed) are April and May (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).

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Average humidity in April
Alta Loma, CA

Average humidity in April - Alta Loma, CA
  • Average humidity in April: 51%

The months with the highest relative humidity are February, March and May (53%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in April
Alta Loma, CA

Average rainfall in April - Alta Loma, CA
  • Average rainfall in April: 0.71"

The wettest month (with the highest rainfall) is February (1.73").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in April
Alta Loma, CA

Average rainfall days in April - Alta Loma, CA
  • Average rainfall days in April: 5.9 days

The month with the highest number of rainy days is March (7.5 days).
The month with the least rainy days is June (1.2 days).

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Average daylight in April /
Average sunshine in April
Alta Loma, CA

Average daylight in April / Average sunshine in April - Alta Loma, CA
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in April: 11h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).

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Average sunshine days in April
Alta Loma, CA

Average sunshine days in April - Alta Loma, CA
  • Average sunshine days in April: 22.9 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.4 days).

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Average UV index in April
Alta Loma, CA

Average UV index in April - Alta Loma, CA
  • Average UV index in April: 5

The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in April
Alta Loma, CA

Average cloud cover in April - Alta Loma, CA
  • Average cloud cover in April: 17

The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 4).

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Average visibility in April
Alta Loma, CA

Average visibility in April - Alta Loma, CA
  • Average visibility in April: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Alta Loma, California, USA

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