April weather forecast
Rancho Cucamonga, CA

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Weather in April

April, like March, is an agreeable spring month in Rancho Cucamonga, California, with temperature in the range of an average high of 72.9°F (22.7°C) and an average low of 50.5°F (10.3°C).

Temperature

The arrival of April brings an average high-temperature of a still pleasant 72.9°F (22.7°C), nearly identical to March's 68.4°F (20.2°C). Despite soaring daytime temperatures, Rancho Cucamonga registers a consistent average low-temperature of 50.5°F (10.3°C) in April.

Humidity

In April, the average relative humidity is 51%.

Rainfall

In April, the rain falls for 5.4 days. Throughout April, 0.47" (12mm) of precipitation is accumulated. Throughout the year, in Rancho Cucamonga, there are 42.3 rainfall days, and 4.53" (115mm) of precipitation is accumulated.

Snowfall

January, March through December are months without snowfall in Rancho Cucamonga.

Daylight

The average length of the day in April in Rancho Cucamonga is 13h and 4min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:11 pm. On the last day of April, sunrise is at 6:01 am and sunset at 7:33 pm PDT.

Sunshine

In April, the average sunshine is 11.4h.

UV index

In Rancho Cucamonga, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 in April interprets into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the usual temperature for Rancho Cucamonga in April?

April temperatures in Rancho Cucamonga vary between a high-temperature of 72.9°F (22.7°C) and a low-temperature of 50.5°F (10.3°C).

What is the average humidity in April in Rancho Cucamonga?

In Rancho Cucamonga, California, the average relative humidity in April is 51%.

How much does it rain in Rancho Cucamonga in April?

In Rancho Cucamonga, during April, the rain falls for 5.4 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When it does not snow in Rancho Cucamonga?

In Rancho Cucamonga, California, snow does not fall in January, March through December.

How many hours of daylight does Rancho Cucamonga have in April?

The average day length in April is 13h and 4min.

When is the sunrise / sunset in April in Rancho Cucamonga?

On the first day of April in Rancho Cucamonga, California, 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 7:33 pm PDT.

How long on average sun shines in April in Rancho Cucamonga?

In Rancho Cucamonga, the average sunshine duration in April is 11.4h.

What is the UV index intensity in April in Rancho Cucamonga?

The average daily maximum UV index in April in Rancho Cucamonga is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
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
Rancho Cucamonga, CA

Average temperature in April - Rancho Cucamonga, CA
  • Average high temperature in April: 72.9°F

The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in April: 50.5°F

The month with the highest average low temperature is August (66.6°F).
The coldest months (with the lowest average low temperature) are February and December (45.3°F).

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Average pressure in April
Rancho Cucamonga, CA

Average pressure in April - Rancho Cucamonga, 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
Rancho Cucamonga, CA

Average wind speed in April - Rancho Cucamonga, CA
  • Average wind speed in April: 5.8mph

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

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Average humidity in April
Rancho Cucamonga, CA

Average humidity in April - Rancho Cucamonga, 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
Rancho Cucamonga, CA

Average rainfall in April - Rancho Cucamonga, CA
  • Average rainfall in April: 0.47"

The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in April
Rancho Cucamonga, CA

Average rainfall days in April - Rancho Cucamonga, CA
  • Average rainfall days in April: 5.4 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.9 days).

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Average snowfall days in April
Rancho Cucamonga, CA

Average snowfall days in April - Rancho Cucamonga, CA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in April /
Average sunshine in April
Rancho Cucamonga, CA

Average daylight in April / Average sunshine in April - Rancho Cucamonga, 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 months with the least sunshine are February and December (Average sunshine: 6h and 54min).

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Average sunshine days in April
Rancho Cucamonga, CA

Average sunshine days in April - Rancho Cucamonga, CA
  • Average sunshine days in April: 24 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (22.8 days).

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Average UV index in April
Rancho Cucamonga, CA

Average UV index in April - Rancho Cucamonga, 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
Rancho Cucamonga, CA

Average cloud cover in April - Rancho Cucamonga, CA
  • Average cloud cover in April: 16

The months with the most cloud cover are February and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in April
Rancho Cucamonga, CA

Average visibility in April - Rancho Cucamonga, 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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Rancho Cucamonga, California, USA

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