April weather forecast and climate
Upper Lake, CA

Weather in April

April is an enjoyable spring month in Upper Lake, California, with temperature in the range of an average high of 64.8°F (18.2°C) and an average low of 42.3°F (5.7°C).

Temperature

In Upper Lake, California, the average high-temperature in April marginally rises, from a moderate 57.9°F (14.4°C) in March, to an enjoyable 64.8°F (18.2°C). The average low-temperature, is 42.3°F (5.7°C).

Humidity

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

Rainfall

In April, the rain falls for 11 days. Throughout April, 1.18" (30mm) of precipitation is accumulated. In Upper Lake, during the entire year, the rain falls for 92 days and collects up to 21.02" (534mm) of precipitation.

Snowfall

In Upper Lake snow does not fall through October.

Daylight

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

Sunshine

In Upper Lake, the average sunshine is 9.7h.

UV index

In Upper Lake, California, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Upper Lake?

In April, in Upper Lake, the average high-temperature is 64.8°F (18.2°C), and the average low-temperature is 42.3°F (5.7°C).

What is the average humidity in April in Upper Lake?

The average relative humidity in April in Upper Lake is 68%.

How much does it rain in Upper Lake in April?

In Upper Lake, California, in April, during 11 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

Does it snow in Upper Lake in April?

In April, in Upper Lake, California, it doesn't snow. March is the latest month when it typically snows.

When it does not snow in Upper Lake?

In Upper Lake snow does not fall in April through October.

What is the average length of the day in April in Upper Lake?

In April, the average length of the day in Upper Lake, California, is 13.3h.

How many hours of sunshine does Upper Lake have in April?

In Upper Lake, California, the average sunshine in April is 9.7h.

What is the UV index intensity in April in Upper Lake?

In Upper Lake, California, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in April
Upper Lake, CA

Average temperature in April - Upper Lake, CA
  • Average high temperature in April: 64.8°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is December (52.3°F).

  • Average low temperature in April: 42.3°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

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Average pressure in April
Upper Lake, CA

Average pressure in April - Upper Lake, CA
  • Average pressure in April: 30.03"

The month with the highest atmospheric pressure is January (30.14").
Months with the lowest atmospheric pressure are June and August (29.91").

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Average wind speed in April
Upper Lake, CA

Average wind speed in April - Upper Lake, CA
  • Average wind speed in April: 5.3mph

The windiest month (with the highest average wind speed) is April (5.3mph).
The calmest month (with the lowest average wind speed) is November (4.1mph).

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Average humidity in April
Upper Lake, CA

Average humidity in April - Upper Lake, CA
  • Average humidity in April: 68%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (47%).

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Average rainfall in April
Upper Lake, CA

Average rainfall in April - Upper Lake, CA
  • Average rainfall in April: 1.18"

The wettest month (with the highest rainfall) is February (4.06").
The driest month (with the least rainfall) is July (0.04").

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Average rainfall days in April
Upper Lake, CA

Average rainfall days in April - Upper Lake, CA
  • Average rainfall days in April: 11 days

The month with the highest number of rainy days is March (15.9 days).
Months with the least rainy days are July and August (1.3 days).

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Average snowfall in April
Upper Lake, CA

Average snowfall in April - Upper Lake, CA
  • Average snowfall in April: 0"

Months with the highest snowfall are January and February (0.47").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in April
Upper Lake, CA

Average snowfall days in April - Upper Lake, CA
  • Average snowfall days in April: 0 days

The month with the highest number of snowfall days is February (0.9 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
Upper Lake, CA

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

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in April: 9.7h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 5.3h).

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Average sunshine days in April
Upper Lake, CA

Average sunshine days in April - Upper Lake, CA
  • Average sunshine days in April: 17.3 days

Months with the most sunshine days are July and August (28.3 days).
The month with the least sunshine days is March (13.7 days).

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Average UV index in April
Upper Lake, CA

Average UV index in April - Upper Lake, CA
  • Average UV index in April: 4

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
Upper Lake, CA

Average cloud cover in April - Upper Lake, CA
  • Average cloud cover in April: 33

The month with the most cloud cover is March (Cloud cover 44).
Months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in April
Upper Lake, CA

Average visibility in April - Upper Lake, CA
  • Average visibility in April: 6mi

Months with the highest visibility are January, February, April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are March and December (5mi).

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