April weather forecast
Geyserville, CA

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Weather in April

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

Temperature

As Geyserville welcomes April, the average high-temperature displays a subtle shift, adjusting from 60.4°F (15.8°C) in March to a still refreshing 66°F (18.9°C). From the heights of the April heat, Geyserville records a mean nighttime low of 43.5°F (6.4°C).

Humidity

The average relative humidity in April is 70%.

Rainfall

In Geyserville, in April, during 9.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Geyserville, during the entire year, the rain falls for 81.2 days and collects up to 19.84" (504mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

In April, the average length of the day is 13h and 14min.
On the first day of April, sunrise is at 6:54 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:03 pm PDT.

Sunshine

In Geyserville, the average sunshine in April is 10h.

UV index

In Geyserville, the average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In April, a daily UV index of 5 turns into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What are April temperatures?

The average high-temperature and low-temperature during April are 66°F (18.9°C) and 43.5°F (6.4°C) respectively.

What is the average humidity in April?

The average relative humidity in April is 70%.

How many days does it rain in April?

In Geyserville, in April, during 9.2 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When it does not snow?

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

What is the average length of the day in April?

The average day length in April is 13h and 14min.

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:54 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:03 pm PDT.

How long on average sun shines in April?

The average sunshine duration in April is 10h.

What is the UV index reading in April?

In Geyserville, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Geyserville, CA

Average temperature in April - Geyserville, 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).

Average pressure in April
Geyserville, CA

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

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

Average wind speed in April
Geyserville, CA

Average wind speed in April - Geyserville, 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).

Average humidity in April
Geyserville, CA

Average humidity in April - Geyserville, 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%).

Average rainfall in April
Geyserville, CA

Average rainfall in April - Geyserville, 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").

Average rainfall days in April
Geyserville, CA

Average rainfall days in April - Geyserville, 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).

Average snowfall in April
Geyserville, CA

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

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

Average snowfall days in April
Geyserville, CA

Average snowfall days in April - Geyserville, 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).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in April: 10h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

Average sunshine days in April
Geyserville, CA

Average sunshine days in April - Geyserville, 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).

Average UV index in April
Geyserville, CA

Average UV index in April - Geyserville, 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).

Average cloud cover in April
Geyserville, CA

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

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

Average visibility in April
Geyserville, CA

Average visibility in April - Geyserville, 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).

Geyserville, California, USA

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