April weather forecast
Diablo, CA

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Weather in April

April is a pleasant spring month in Diablo, California, with an average temperature varying between 68°F (20°C) and 45.7°F (7.6°C).

Temperature

Diablo's average high-temperature in April is a pleasant 68°F (20°C), indicating a subtle variation from March. Nighttime temperatures exhibit a substantial dip from daytime highs during April, averaging at a chilly 45.7°F (7.6°C).

Humidity

The average relative humidity in April is 68%.

Rainfall

In April, the rain falls for 7.1 days. Throughout April, 0.67" (17mm) of precipitation is accumulated. Throughout the year, in Diablo, California, there are 65.6 rainfall days, and 11.22" (285mm) of precipitation is accumulated.

Daylight

In Diablo, the average length of the day in April is 13h and 13min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:31 pm. On the last day of April, in Diablo, California, sunrise is at 6:11 am and sunset at 7:57 pm PDT.

Sunshine

The average sunshine in April is 10.3h.

UV index

The average daily maximum UV index in April in Diablo is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 5 in April translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
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Frequently asked questions

What is the temperature in April in Diablo?

April temperatures in Diablo vary between a high-temperature of 68°F (20°C) and a low-temperature of 45.7°F (7.6°C).

What is the average humidity in April in Diablo?

In April, the average relative humidity in Diablo is 68%.

How many days does it rain in April in Diablo?

In April, in Diablo, California, the rain falls for 7.1 days. Throughout April, 0.67" (17mm) of precipitation is accumulated.

How many hours of daylight does Diablo have in April?

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

When is the sunrise / sunset in April in Diablo?

On the first day of April, sunrise is at 6:51 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:57 pm PDT.

How many hours of sunshine does Diablo have in April?

In April, the average sunshine duration in Diablo is 10.3h.

What is the UV index reading in April in Diablo?

In Diablo, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Diablo, CA

Average temperature in April - Diablo, CA
  • Average high temperature in April: 68°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (55.8°F).

  • Average low temperature in April: 45.7°F

The months with the highest average low temperature are August and September (56.7°F).
The coldest month (with the lowest average low temperature) is January (42.1°F).

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Average pressure in April
Diablo, CA

Average pressure in April - Diablo, CA
  • Average pressure in April: 30.03"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

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Average wind speed in April
Diablo, CA

Average wind speed in April - Diablo, CA
  • Average wind speed in April: 6.2mph

The windiest month (with the highest average wind speed) is May (6.9mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).

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Average humidity in April
Diablo, CA

Average humidity in April - Diablo, CA
  • Average humidity in April: 68%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (57%).

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Average rainfall in April
Diablo, CA

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

The wettest month (with the highest rainfall) is February (2.36").
The driest months (with the least rainfall) are July and August (0").

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Average rainfall days in April
Diablo, CA

Average rainfall days in April - Diablo, CA
  • Average rainfall days in April: 7.1 days

The month with the highest number of rainy days is March (12.6 days).
The month with the least rainy days is August (0.6 days).

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

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in April: 10h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in April
Diablo, CA

Average sunshine days in April - Diablo, CA
  • Average sunshine days in April: 21.8 days

The month with the most sunshine days is July (30.2 days).
The month with the least sunshine days is March (17.6 days).

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Average UV index in April
Diablo, CA

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

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in April
Diablo, CA

Average cloud cover in April - Diablo, CA
  • Average cloud cover in April: 27

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 6).

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Average visibility in April
Diablo, CA

Average visibility in April - Diablo, 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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Diablo, California, USA

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