May weather forecast
Willow Creek, CA

Weather in May

The last month of the spring, May, is also a moderate month in Willow Creek, California, with average temperature fluctuating between 60.1°F (15.6°C) and 45.9°F (7.7°C).

Temperature

In Willow Creek, the average high-temperature in May is practically the same as in April - a still mild 60.1°F (15.6°C). The average low-temperature, in May, is 45.9°F (7.7°C).

Humidity

The average relative humidity in Willow Creek is 81%.

Rainfall

In May, the rain falls for 8.3 days. Throughout May, 1.73" (44mm) of precipitation is accumulated. Throughout the year, in Willow Creek, there are 114.9 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in Willow Creek, California, is 14.5h.

Sunshine

The average sunshine in May is 9.6h.

UV index

The average daily maximum UV index in Willow Creek 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 average daily UV index of 4 transform into the following instructions:
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. 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 average humidity in May in Willow Creek?

In Willow Creek, California, the average relative humidity in May is 81%.

How many days does it rain in May in Willow Creek?

In Willow Creek, California, in May, during 8.3 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow in Willow Creek?

January, March through December are months without snowfall in Willow Creek.

What is the average length of the day in May in Willow Creek?

In Willow Creek, the average length of the day in May is 14.5h.

How long on average sun shines in May in Willow Creek?

In May, the average sunshine is 9.6h.

What is the UV index intensity in May in Willow Creek?

In May, the average daily maximum UV index in Willow Creek, California, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
Willow Creek, CA

Average temperature in May - Willow Creek, CA
  • Average high temperature in May: 60.1°F

The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is December (52.7°F).

  • Average low temperature in May: 45.9°F

The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is February (41.7°F).

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Average pressure in May
Willow Creek, CA

Average pressure in May - Willow Creek, CA
  • Average pressure in May: 30.02"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is August (29.97").

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Average wind speed in May
Willow Creek, CA

Average wind speed in May - Willow Creek, CA
  • Average wind speed in May: 7.1mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in May
Willow Creek, CA

Average humidity in May - Willow Creek, CA
  • Average humidity in May: 81%

The month with the highest relative humidity is March (82%).
Months with the lowest relative humidity are September and October (76%).

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Average rainfall in May
Willow Creek, CA

Average rainfall in May - Willow Creek, CA
  • Average rainfall in May: 1.73"

The wettest month (with the highest rainfall) is December (5.87").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in May
Willow Creek, CA

Average rainfall days in May - Willow Creek, CA
  • Average rainfall days in May: 8.3 days

The month with the highest number of rainy days is March (16.8 days).
Months with the least rainy days are July and August (2.2 days).

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Average snowfall in May
Willow Creek, CA

Average snowfall in May - Willow Creek, CA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.39").
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 May
Willow Creek, CA

Average snowfall days in May - Willow Creek, CA
  • Average snowfall days in May: 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 and November (0 days).

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Average daylight in May /
Average sunshine in May
Willow Creek, CA

Average daylight in May / Average sunshine in May - Willow Creek, CA
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 9.6h

The month with the most sunshine is July (Average sunshine: 11.5h).
Months with the least sunshine are January and December (Average sunshine: 5.1).

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Average sunshine days in May
Willow Creek, CA

Average sunshine days in May - Willow Creek, CA
  • Average sunshine days in May: 21.2 days

Months with the most sunshine days are July and August (28 days).
The month with the least sunshine days is March (12.5 days).

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Average UV index in May
Willow Creek, CA

Average UV index in May - Willow Creek, CA
  • Average UV index in May: 4

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 3).

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Average cloud cover in May
Willow Creek, CA

Average cloud cover in May - Willow Creek, CA
  • Average cloud cover in May: 37

The month with the most cloud cover is March (Cloud cover 48).
Months with the least cloud cover are July and August (Cloud cover 18).

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Average visibility in May
Willow Creek, CA

Average visibility in May - Willow Creek, CA
  • Average visibility in May: 6mi

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

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