May weather forecast
Foresthill, CA

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Weather in May

The last month of the spring, May, is a pleasant month in Foresthill, California, with an average temperature ranging between min 45.1°F (7.3°C) and max 68°F (20°C).

Temperature

With the transition into May, Foresthill experiences a subtle uplift in average high-temperatures, adjusting from a moderate 60.4°F (15.8°C) in April to a pleasant 68°F (20°C). A significant temperature decrease to an average a chilly 45.1°F (7.3°C) characterizes Foresthill's nighttime temperatures during May.

Humidity

In May, the average relative humidity in Foresthill is 62%.

Rainfall

In May, the rain falls for 9.3 days. Throughout May, 2.2" (56mm) of precipitation is accumulated. In Foresthill, during the entire year, the rain falls for 85.5 days and collects up to 35.94" (913mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Foresthill aggregates 0.24" (6mm) of snow. Throughout the year, in Foresthill, there are 22.8 snowfall days, and 56.06" (1424mm) of snow is accumulated.

Daylight

In May, the average length of the day in Foresthill, California, is 14h and 20min.
On the first day of May in Foresthill, sunrise is at 6:03 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:22 pm PDT.

Sunshine

In Foresthill, California, the average sunshine in May is 10.7h.

UV index

The average daily maximum UV index in May in Foresthill, California, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 4 in May leads to these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.

Frequently asked questions

What are the temperatures in Foresthill in May?

The high-temperature, in May, in Foresthill, is 68°F (20°C), while the low-temperature averages to 45.1°F (7.3°C).

What is the average humidity in May in Foresthill?

In Foresthill, the average relative humidity in May is 62%.

How many days does it rain in May in Foresthill?

In Foresthill, during May, the rain falls for 9.3 days and regularly aggregates up to 2.2" (56mm) of precipitation.

What is the last month it snows in Foresthill?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Foresthill aggregates 0.24" (6mm) of snow.

How many hours of daylight does Foresthill have in May?

The average day length in May in Foresthill, California, is 14h and 20min.

When are sunrise and sunset in May in Foresthill?

On the first day of May in Foresthill, California, sunrise is at 6:03 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 8:22 pm PDT.

How many hours of sunshine does Foresthill have in May?

In May, the average sunshine duration is 10.7h.

What is the UV index intensity in May in Foresthill?

The average daily maximum UV index in May in Foresthill is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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
Foresthill, CA

Average temperature in May - Foresthill, CA
  • Average high temperature in May: 68°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (49.1°F).

  • Average low temperature in May: 45.1°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).

Average pressure in May
Foresthill, CA

Average pressure in May - Foresthill, CA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in May
Foresthill, CA

Average wind speed in May - Foresthill, CA
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is February (6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in May
Foresthill, CA

Average humidity in May - Foresthill, CA
  • Average humidity in May: 62%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is July (38%).

Average rainfall in May
Foresthill, CA

Average rainfall in May - Foresthill, CA
  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is March (7.01").
The driest month (with the least rainfall) is July (0.04").

Average rainfall days in May
Foresthill, CA

Average rainfall days in May - Foresthill, CA
  • Average rainfall days in May: 9.3 days

The month with the highest number of rainy days is March (13.9 days).
The month with the least rainy days is July (1.4 days).

Average snowfall in May
Foresthill, CA

Average snowfall in May - Foresthill, CA
  • Average snowfall in May: 0.24"

The month with the highest snowfall is March (17.87").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Foresthill, CA

Average snowfall days in May - Foresthill, CA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is March (5.4 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
Foresthill, CA

Average daylight in May / Average sunshine in May - Foresthill, CA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

Average sunshine days in May
Foresthill, CA

Average sunshine days in May - Foresthill, CA
  • Average sunshine days in May: 19.8 days

The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (13.5 days).

Average UV index in May
Foresthill, CA

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

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

Average cloud cover in May
Foresthill, CA

Average cloud cover in May - Foresthill, CA
  • Average cloud cover in May: 23

The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).

Average visibility in May
Foresthill, CA

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

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

Foresthill, California, USA

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