April weather forecast and climate
Healdsburg, CA

Neat rows of plants in a farm with a view of a red farmhouse up the hill in Healdsburg, California
Neat rows of plants in a farm with a view of a red farmhouse up the hill in Healdsburg, California

Weather in April

April in Healdsburg, California, is a comfortable spring month, with average temperature varying between 66°F (18.9°C) and 43.5°F (6.4°C).

Temperature

In April, the average high-temperature slightly increases, from a mild 60.4°F (15.8°C) in March, to a comfortable 66°F (18.9°C). The average low-temperature, in April, is 43.5°F (6.4°C).

Humidity

In Healdsburg, California, the average relative humidity is 70%.

Rainfall

In Healdsburg, California, it is raining for 9.2 days, with typically 1.06" (27mm) of accumulated precipitation. In Healdsburg, California, during the entire year, the rain falls for 81.2 days and collects up to 19.84" (504mm) of precipitation.

Snowfall

In Healdsburg snow does not fall in January, March through December.

Daylight

In April, the average length of the day in Healdsburg is 13.3h.

Sunshine

In Healdsburg, California, the average sunshine is 10h.

UV index

In Healdsburg, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in April in Healdsburg?

In Healdsburg, in April, the average high-temperature is 66°F (18.9°C), and the average low-temperature is 43.5°F (6.4°C).

What is the average humidity in April in Healdsburg?

The average relative humidity in April in Healdsburg, California, is 70%.

How many days does it rain in April in Healdsburg?

In April, in Healdsburg, the rain falls for 9.2 days. Throughout April, 1.06" (27mm) of precipitation is accumulated.

When it does not snow in Healdsburg?

In Healdsburg snow does not fall in January, March through December.

What is the average length of the day in April in Healdsburg?

The average length of the day in April in Healdsburg is 13.3h.

How long on average sun shines in April in Healdsburg?

In Healdsburg, California, the average sunshine in April is 10h.

What is the UV index intensity in April in Healdsburg?

In April, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in April
Healdsburg, CA

Average temperature in April - Healdsburg, CA
  • Average high temperature in April: 66°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in April: 43.5°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

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Average pressure in April
Healdsburg, CA

Average pressure in April - Healdsburg, CA
  • Average pressure in April: 30.03"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in April
Healdsburg, CA

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

The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

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Average humidity in April
Healdsburg, CA

Average humidity in April - Healdsburg, CA
  • Average humidity in April: 70%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (57%).

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Average rainfall in April
Healdsburg, CA

Average rainfall in April - Healdsburg, CA
  • Average rainfall in April: 1.06"

The wettest month (with the highest rainfall) is February (4.33").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in April
Healdsburg, CA

Average rainfall days in April - Healdsburg, CA
  • Average rainfall days in April: 9.2 days

The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall in April
Healdsburg, CA

Average snowfall in April - Healdsburg, CA
  • Average snowfall in April: 0"

The month with the highest snowfall is February (0.04").
Months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in April
Healdsburg, CA

Average snowfall days in April - Healdsburg, CA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is February (0.1 days).
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
Healdsburg, CA

Average daylight in April / Average sunshine in April - Healdsburg, CA
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in April: 10h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.6h).

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Average sunshine days in April
Healdsburg, CA

Average sunshine days in April - Healdsburg, CA
  • Average sunshine days in April: 19.4 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).

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Average UV index in April
Healdsburg, CA

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

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

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Average cloud cover in April
Healdsburg, CA

Average cloud cover in April - Healdsburg, CA
  • Average cloud cover in April: 31

The month with the most cloud cover is March (Cloud cover 41).
Months with the least cloud cover are July and August (Cloud cover 6).

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Average visibility in April
Healdsburg, CA

Average visibility in April - Healdsburg, 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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