May weather forecast
Hayfork, CA

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Weather in May

May, the last month of the spring in Hayfork, is a comfortable month, with an average temperature varying between 39.4°F (4.1°C) and 66.2°F (19°C).

Temperature

Hayfork in May shows a temperature shift, moving from an average high of a mild 57.2°F (14°C) in April to a comfortable 66.2°F (19°C). Throughout May, Hayfork notes a dramatic plunge from the daily high to an average low-temperature of 39.4°F (4.1°C).

Humidity

The average relative humidity in May is 69%.

Rainfall

In May, the rain falls for 10.5 days. Throughout May, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 99.6 rainfall days, and 25.04" (636mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Hayfork. May is the last month it regularly snows. During 0.3 snowfall days, in May, Hayfork aggregates 0.04" (1mm) of snow. Throughout the year, there are 21.4 snowfall days, and 28.74" (730mm) of snow is accumulated.

Daylight

The average length of the day in May in Hayfork, California, is 14h and 28min.
On the first day of May in Hayfork, sunrise is at 6:10 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:36 pm PDT.

Sunshine

In Hayfork, the average sunshine in May is 10.3h.

UV index

In Hayfork, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum high UV index of 4 in May translates into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

What are the temperatures in Hayfork in May?

In May, in Hayfork, the average high-temperature is 66.2°F (19°C), and the average low-temperature is 39.4°F (4.1°C).

What is the average humidity in May in Hayfork?

The average relative humidity in May is 69%.

How much does it rain in Hayfork in May?

In Hayfork, California, in May, during 10.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

What is the last month it snows in Hayfork?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Hayfork aggregates 0.04" (1mm) of snow.

What is the average length of the day in May in Hayfork?

In Hayfork, California, the average day length in May is 14h and 28min.

When are sunrise and sunset in May in Hayfork?

In May, on the first day of the month, sunrise is at 6:10 am and sunset at 8:09 pm. On the last day of the month, in Hayfork, sunrise is at 5:44 am and sunset at 8:36 pm PDT.

How many hours of sunshine does Hayfork have in May?

In Hayfork, the average sunshine duration in May is 10.3h.

What is the UV index reading in May in Hayfork?

In Hayfork, California, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Hayfork, CA

Average temperature in May - Hayfork, CA
  • Average high temperature in May: 66.2°F

The warmest months (with the highest average high temperature) are July and August (86.5°F).
The month with the lowest average high temperature is December (46°F).

  • Average low temperature in May: 39.4°F

The month with the highest average low temperature is July (51.1°F).
The coldest month (with the lowest average low temperature) is December (30.2°F).

Average pressure in May
Hayfork, CA

Average pressure in May - Hayfork, CA
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

Average wind speed in May
Hayfork, CA

Average wind speed in May - Hayfork, CA
  • Average wind speed in May: 4.3mph

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

Average humidity in May
Hayfork, CA

Average humidity in May - Hayfork, CA
  • Average humidity in May: 69%

The month with the highest relative humidity is March (81%).
The month with the lowest relative humidity is August (52%).

Average rainfall in May
Hayfork, CA

Average rainfall in May - Hayfork, CA
  • Average rainfall in May: 2.13"

The wettest month (with the highest rainfall) is December (4.17").
The driest month (with the least rainfall) is July (0.16").

Average rainfall days in May
Hayfork, CA

Average rainfall days in May - Hayfork, CA
  • Average rainfall days in May: 10.5 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (2.3 days).

Average snowfall in May
Hayfork, CA

Average snowfall in May - Hayfork, CA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (7.52").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Hayfork, CA

Average snowfall days in May - Hayfork, CA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Hayfork, CA

Average daylight in May / Average sunshine in May - Hayfork, CA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).

Average sunshine days in May
Hayfork, CA

Average sunshine days in May - Hayfork, CA
  • Average sunshine days in May: 18.8 days

The month with the most sunshine days is July (26 days).
The month with the least sunshine days is March (13.6 days).

Average UV index in May
Hayfork, CA

Average UV index in May - Hayfork, CA
  • Average UV index in May: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Hayfork, CA

Average cloud cover in May - Hayfork, CA
  • Average cloud cover in May: 33

The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in May
Hayfork, CA

Average visibility in May - Hayfork, CA
  • Average visibility in May: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are March and December (4mi).

Hayfork, California, USA

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