April weather forecast and climate
Holtville, CA

Weather in April

April is a hot spring month in Holtville, California, with average temperature ranging between min 61.2°F (16.2°C) and max 86.7°F (30.4°C).

Temperature

In Holtville, California, the average high-temperature marginally rises, from a warm 79.7°F (26.5°C) in March, to a hot 86.7°F (30.4°C). In April, in Holtville, the average low-temperature is 61.2°F (16.2°C).

Humidity

The average relative humidity in April is 26%.

Rainfall

In Holtville, California, it is raining for 1.6 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, in Holtville, there are 29.5 rainfall days, and 2.99" (76mm) of precipitation is accumulated.

Daylight

The average length of the day is 13h.

Sunshine

In Holtville, California, the average sunshine in April is 11.7h.

UV index

In April, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 7 in April transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 Holtville?

In April, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 61.2°F (16.2°C).

What is the average humidity in April in Holtville?

The average relative humidity in April in Holtville, California, is 26%.

How many days does it rain in April in Holtville?

In April, the rain falls for 1.6 days. Throughout April, 0.2" (5mm) of precipitation is accumulated.

How many hours of daylight does Holtville have in April?

The average length of the day in April in Holtville, California, is 13h.

How long on average sun shines in April in Holtville?

In Holtville, California, the average sunshine in April is 11.7h.

How high is the UV index in April in Holtville?

In April, the average daily maximum UV index in Holtville, California, is 7. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.

Average temperature in April
Holtville, CA

Average temperature in April - Holtville, CA
  • Average high temperature in April: 86.7°F

The warmest month (with the highest average high temperature) is July (107.2°F).
The month with the lowest average high temperature is December (67.3°F).

  • Average low temperature in April: 61.2°F

The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is January (50°F).

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Average pressure in April
Holtville, CA

Average pressure in April - Holtville, CA
  • Average pressure in April: 29.88"

The month with the highest atmospheric pressure is January (30.08").
The month with the lowest atmospheric pressure is June (29.77").

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Average wind speed in April
Holtville, CA

Average wind speed in April - Holtville, CA
  • Average wind speed in April: 7.7mph

The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are January and August (5.5mph).

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Average humidity in April
Holtville, CA

Average humidity in April - Holtville, CA
  • Average humidity in April: 26%

The month with the highest relative humidity is December (39%).
The month with the lowest relative humidity is June (21%).

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Average rainfall in April
Holtville, CA

Average rainfall in April - Holtville, CA
  • Average rainfall in April: 0.2"

The wettest month (with the highest rainfall) is July (0.55").
The driest month (with the least rainfall) is May (0.04").

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Average rainfall days in April
Holtville, CA

Average rainfall days in April - Holtville, CA
  • Average rainfall days in April: 1.6 days

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

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

Average daylight in April / Average sunshine in April - Holtville, CA
  • Average daylight in April: 13h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in April: 11.7h

The month with the most sunshine is June (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 7.1h).

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Average sunshine days in April
Holtville, CA

Average sunshine days in April - Holtville, CA
  • Average sunshine days in April: 28.3 days

The month with the most sunshine days is May (29.9 days).
The month with the least sunshine days is July (21.8 days).

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Average UV index in April
Holtville, CA

Average UV index in April - Holtville, CA
  • Average UV index in April: 7

Months with the highest UV index are July and August (UV index 9).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in April
Holtville, CA

Average cloud cover in April - Holtville, CA
  • Average cloud cover in April: 10

The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in April
Holtville, CA

Average visibility in April - Holtville, 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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