May weather forecast
Hayfork, CA

Share

Weather in May

May, the last month of the spring in Hayfork, is a refreshing month, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 39.4°F (4.1°C).

Temperature

Hayfork, California, in May experiences an increase in the average high-temperature, moving from April's mild 57.2°F (14°C) to a comfortable 66.2°F (19°C). In Hayfork, following the steep rise of daytime temperatures, an average nighttime low of 39.4°F (4.1°C) is anticipated during May.

Humidity

In Hayfork, the average relative humidity in May is 69%.

Rainfall

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

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

The average sunshine in May is 10.3h.

UV index

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 4 during May, leads to the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

During May, Hayfork experiences an average high-temperature of 66.2°F (19°C) and a low-temperature of 39.4°F (4.1°C).

What is the average humidity in May?

The average relative humidity in May is 69%.

How many days does it rain in May?

In Hayfork, California, in May, it is raining for 10.5 days, with typically 2.13" (54mm) of accumulated precipitation.

What is the last month it snows?

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

When is the sunrise / sunset in May?

On the first day of May, 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.

How many hours of sunshine does Hayfork have in May?

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

What is the UV index reading in May?

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk 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

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location