April weather forecast and climate
Norco, CA

Weather in April

April, like March, is an agreeable spring month in Norco, California, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 72.5°F (22.5°C).

Temperature

In Norco, the average high-temperature in April is relatively the same as in March - a still pleasant 72.5°F (22.5°C). In Norco, in April, the average low-temperature is 51.3°F (10.7°C).

Humidity

The average relative humidity is 57%.

Rainfall

In Norco, during April, the rain falls for 6.2 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Norco, during the entire year, the rain falls for 53.9 days and collects up to 8.86" (225mm) of precipitation.

Daylight

In Norco, the average length of the day is 13.1h.

Sunshine

In April, the average sunshine in Norco is 11h.

UV index

In April, the average daily maximum UV index in Norco is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in April interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in April in Norco?

The average high-temperature, in April, is 72.5°F (22.5°C), while the average low-temperature is 51.3°F (10.7°C).

What is the average humidity in April in Norco?

In Norco, the average relative humidity in April is 57%.

How many days does it rain in April in Norco?

In April, in Norco, California, the rain falls for 6.2 days. Throughout April, 0.67" (17mm) of precipitation is accumulated.

How many hours of daylight does Norco have in April?

The average length of the day in April in Norco, California, is 13.1h.

How many hours of sunshine does Norco have in April?

The average sunshine in April in Norco, California, is 11h.

How high is the UV index in April in Norco?

The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in April
Norco, CA

Average temperature in April - Norco, CA
  • Average high temperature in April: 72.5°F

The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is December (63.5°F).

  • Average low temperature in April: 51.3°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).

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Average pressure in April
Norco, CA

Average pressure in April - Norco, CA
  • Average pressure in April: 29.95"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in April
Norco, CA

Average wind speed in April - Norco, CA
  • Average wind speed in April: 5.4mph

The windiest months (with the highest average wind speed) are April and May (5.4mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).

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Average humidity in April
Norco, CA

Average humidity in April - Norco, CA
  • Average humidity in April: 57%

The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is November (48%).

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Average rainfall in April
Norco, CA

Average rainfall in April - Norco, CA
  • Average rainfall in April: 0.67"

The wettest month (with the highest rainfall) is December (1.89").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in April
Norco, CA

Average rainfall days in April - Norco, CA
  • Average rainfall days in April: 6.2 days

The month with the highest number of rainy days is March (8.2 days).
The month with the least rainy days is June (1.3 days).

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Average daylight in April /
Average sunshine in April
Norco, CA

Average daylight in April / Average sunshine in April - Norco, CA
  • Average daylight in April: 13.1h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in April: 11h

Months with the most sunshine are July and August (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in April
Norco, CA

Average sunshine days in April - Norco, CA
  • Average sunshine days in April: 22.7 days

The month with the most sunshine days is June (27.1 days).
The month with the least sunshine days is February (20.8 days).

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Average UV index in April
Norco, CA

Average UV index in April - Norco, CA
  • Average UV index in April: 5

Months with the highest UV index are July and August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average cloud cover in April
Norco, CA

Average cloud cover in April - Norco, CA
  • Average cloud cover in April: 19

Months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in April
Norco, CA

Average visibility in April - Norco, CA
  • Average visibility in April: 6mi

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

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