April weather forecast and climate
Calpella, CA

Weather in April

April is a comfortable spring month in Calpella, California, with average temperature fluctuating between 41°F (5°C) and 63.1°F (17.3°C).

Temperature

In April, the average high-temperature slightly increases, from a moderate 57.6°F (14.2°C) in March, to an enjoyable 63.1°F (17.3°C). In Calpella, the average low-temperature is 41°F (5°C).

Humidity

The average relative humidity in April is 73%.

Rainfall

In Calpella, in April, it is raining for 8.6 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Calpella, there are 83.3 rainfall days, and 17.72" (450mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Calpella, the average length of the day is 13.3h.

Sunshine

In April, the average sunshine is 9.6h.

UV index

In Calpella, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: In April, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in April in Calpella?

The average high-temperature, in April, in Calpella, is 63.1°F (17.3°C), while the average low-temperature is 41°F (5°C).

What is the average humidity in April in Calpella?

In Calpella, the average relative humidity in April is 73%.

How much does it rain in Calpella in April?

In Calpella, in April, during 8.6 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

When it does not snow in Calpella?

January, March through December are months without snowfall in Calpella, California.

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

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

How long on average sun shines in April in Calpella?

The average sunshine in April in Calpella is 9.6h.

What is the UV index intensity in April in Calpella?

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

Average temperature in April
Calpella, CA

Average temperature in April - Calpella, CA
  • Average high temperature in April: 63.1°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in April: 41°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).

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Average pressure in April
Calpella, CA

Average pressure in April - Calpella, 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
Calpella, CA

Average wind speed in April - Calpella, CA
  • Average wind speed in April: 5.5mph

The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

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Average humidity in April
Calpella, CA

Average humidity in April - Calpella, CA
  • Average humidity in April: 73%

The month with the highest relative humidity is March (79%).
Months with the lowest relative humidity are July and September (58%).

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Average rainfall in April
Calpella, CA

Average rainfall in April - Calpella, CA
  • Average rainfall in April: 1.02"

The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in April
Calpella, CA

Average rainfall days in April - Calpella, CA
  • Average rainfall days in April: 8.6 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).

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Average snowfall in April
Calpella, CA

Average snowfall in April - Calpella, 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
Calpella, CA

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

The month with the highest number of snowfall days is February (0.3 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
Calpella, CA

Average daylight in April / Average sunshine in April - Calpella, 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: 9.6h

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
Calpella, CA

Average sunshine days in April - Calpella, CA
  • Average sunshine days in April: 19.8 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in April
Calpella, CA

Average UV index in April - Calpella, CA
  • Average UV index in April: 4

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are February and November (UV index 2).

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Average cloud cover in April
Calpella, CA

Average cloud cover in April - Calpella, CA
  • Average cloud cover in April: 35

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in April
Calpella, CA

Average visibility in April - Calpella, CA
  • Average visibility in April: 6mi

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

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