April weather forecast
Mammoth Lakes, CA

Perfect water reflections of trees, rocks, and distant mountains in the clear water of Mammoth Lakes, California
Perfect water reflections of trees, rocks, and distant mountains in the clear water of Mammoth Lakes, California

Weather in April

April in Mammoth Lakes, California, is a chilly spring month, with an average temperature ranging between min 24.1°F (-4.4°C) and max 44.6°F (7°C).

Temperature

In Mammoth Lakes, the average high-temperature in April slightly increases from a cold 37.6°F (3.1°C) in March to a frosty 44.6°F (7°C). The average low-temperature, is 24.1°F (-4.4°C).

Humidity

In April, the average relative humidity is 67%.

Rainfall

In April, in Mammoth Lakes, the rain falls for 6.3 days. Throughout April, 0.51" (13mm) of precipitation is accumulated. Throughout the year, in Mammoth Lakes, there are 47.7 rainfall days, and 4.92" (125mm) of precipitation is accumulated.

Snowfall

January through June, September through December are months with snowfall. In Mammoth Lakes, in April, snow falls for 7.1 days, with typically accumulated 3.39" (86mm) of snow. Throughout the year, in Mammoth Lakes, there are 60.8 snowfall days, and 28.58" (726mm) of snow is accumulated.

Daylight

In Mammoth Lakes, the average length of the day in April is 13h and 12min.
On the first day of the month, sunrise is at 6:40 am and sunset at 7:18 pm. On the last day of April, sunrise is at 6:00 am and sunset at 7:45 pm PDT.

Sunshine

The average sunshine in April in Mammoth Lakes is 10.9h.

UV index

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in April transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in April in Mammoth Lakes?

In April, the average relative humidity in Mammoth Lakes is 67%.

How many days does it rain in April in Mammoth Lakes?

In Mammoth Lakes, California, during April, the rain falls for 6.3 days and regularly aggregates up to 0.51" (13mm) of precipitation.

How many days does it snow in April in Mammoth Lakes?

In Mammoth Lakes, in April, during 7.1 snowfall days, 3.39" (86mm) of snow is typically accumulated.

What is the average length of the day in April in Mammoth Lakes?

In April, the average day length is 13h and 12min.

When are sunrise and sunset in April in Mammoth Lakes?

On the first day of April, sunrise is at 6:40 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:45 pm PDT.

How many hours of sunshine does Mammoth Lakes have in April?

In Mammoth Lakes, California, the average sunshine duration in April is 10.9h.

When is the lowest UV index in Mammoth Lakes?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in April in Mammoth Lakes?

The average daily maximum UV index in April in Mammoth Lakes, California, is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Mammoth Lakes, CA

Average temperature in April - Mammoth Lakes, CA
  • Average high temperature in April: 44.6°F

The warmest month (with the highest average high temperature) is July (73.4°F).
The month with the lowest average high temperature is February (34°F).

  • Average low temperature in April: 24.1°F

The month with the highest average low temperature is July (48.2°F).
The coldest month (with the lowest average low temperature) is February (14.9°F).

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Average pressure in April
Mammoth Lakes, CA

Average pressure in April - Mammoth Lakes, CA
  • Average pressure in April: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in April
Mammoth Lakes, CA

Average wind speed in April - Mammoth Lakes, CA
  • Average wind speed in April: 6.6mph

The windiest month (with the highest average wind speed) is March (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

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Average humidity in April
Mammoth Lakes, CA

Average humidity in April - Mammoth Lakes, CA
  • Average humidity in April: 67%

The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (34%).

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Average rainfall in April
Mammoth Lakes, CA

Average rainfall in April - Mammoth Lakes, CA
  • Average rainfall in April: 0.51"

The wettest month (with the highest rainfall) is February (0.94").
The driest months (with the least rainfall) are August and October (0.08").

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Average rainfall days in April
Mammoth Lakes, CA

Average rainfall days in April - Mammoth Lakes, CA
  • Average rainfall days in April: 6.3 days

The month with the highest number of rainy days is April (6.3 days).
The month with the least rainy days is August (1.8 days).

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Average snowfall in April
Mammoth Lakes, CA

Average snowfall in April - Mammoth Lakes, CA
  • Average snowfall in April: 3.39"

The month with the highest snowfall is February (5.67").
The months with the least snowfall are July and August (0").

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Average snowfall days in April
Mammoth Lakes, CA

Average snowfall days in April - Mammoth Lakes, CA
  • Average snowfall days in April: 7.1 days

The month with the highest number of snowfall days is March (11.3 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in April /
Average sunshine in April
Mammoth Lakes, CA

Average daylight in April / Average sunshine in April - Mammoth Lakes, CA
  • Average daylight in April: 13h and 12min

The month with the longest days is June (Average daylight: 14h and 44min).
The month with the shortest days is December (Average daylight: 9h and 37min).

  • Average sunshine in April: 10h and 54min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 18min).

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Average sunshine days in April
Mammoth Lakes, CA

Average sunshine days in April - Mammoth Lakes, CA
  • Average sunshine days in April: 19.8 days

The month with the most sunshine days is October (27.3 days).
The month with the least sunshine days is March (18.2 days).

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Average UV index in April
Mammoth Lakes, CA

Average UV index in April - Mammoth Lakes, CA
  • Average UV index in April: 2

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in April
Mammoth Lakes, CA

Average cloud cover in April - Mammoth Lakes, CA
  • Average cloud cover in April: 24

The month with the most cloud cover is March (Cloud cover 30).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in April
Mammoth Lakes, CA

Average visibility in April - Mammoth Lakes, 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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