May weather forecast
Cottonwood, ID

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Weather in May

May, the last month of the spring in Cottonwood, is a refreshing month, with an average temperature ranging between max 61.9°F (16.6°C) and min 38.8°F (3.8°C).

Temperature

Noticing a change, the average high-temperature during May moves from April's cool 52°F (11.1°C) to a refreshing 61.9°F (16.6°C). Cottonwood registers a marked temperature plunge to an icy 38.8°F (3.8°C) during the cool May nights.

Humidity

The average relative humidity in May is 73%.

Rainfall

In May, the rain falls for 17.6 days. Throughout May, 3.11" (79mm) of precipitation is accumulated. In Cottonwood, during the entire year, the rain falls for 133.5 days and collects up to 28.9" (734mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. In Cottonwood, in May, during 4.2 snowfall days, 2.4" (61mm) of snow is typically accumulated. Throughout the year, there are 112.2 snowfall days, and 105.79" (2687mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 59min.
On the first day of the month, sunrise is at 5:30 am and sunset at 7:54 pm. On the last day of May, sunrise is at 4:57 am and sunset at 8:28 pm PDT.

Sunshine

The average sunshine in May is 9.6h.

UV index

The average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, the maximum UV index of 4 translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Enhance your sun protection with tightly woven, yet airy clothing. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

The high-temperature during May is 61.9°F (16.6°C) and the low-temperature is 38.8°F (3.8°C).

What is the average humidity in May?

The average relative humidity in May is 73%.

How many days does it rain in May?

In Cottonwood, in May, during 17.6 rainfall days, 3.11" (79mm) of precipitation is typically accumulated.

How much does it snow in May?

In Cottonwood, in May, snow falls for 4.2 days, with typically accumulated 2.4" (61mm) of snow.

What is the average length of the day in May?

In Cottonwood, the average day length in May is 14h and 59min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:30 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 4:57 am and sunset at 8:28 pm PDT.

How many hours of sunshine does Cottonwood have in May?

In Cottonwood, the average sunshine duration in May is 9.6h.

What is the UV index reading in May?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Cottonwood, ID

Average temperature in May - Cottonwood, ID
  • Average high temperature in May: 61.9°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (32.5°F).

  • Average low temperature in May: 38.8°F

The month with the highest average low temperature is August (54.7°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

Average pressure in May
Cottonwood, ID

Average pressure in May - Cottonwood, ID
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.21"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).

Average wind speed in May
Cottonwood, ID

Average wind speed in May - Cottonwood, ID
  • Average wind speed in May: 4mph

The windiest months (with the highest average wind speed) are January, February, March and November (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in May
Cottonwood, ID

Average humidity in May - Cottonwood, ID
  • Average humidity in May: 73%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (44%).

Average rainfall in May
Cottonwood, ID

Average rainfall in May - Cottonwood, ID
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is July (0.63").

Average rainfall days in May
Cottonwood, ID

Average rainfall days in May - Cottonwood, ID
  • Average rainfall days in May: 17.6 days

The month with the highest number of rainy days is April (17.8 days).
The month with the least rainy days is January (6 days).

Average snowfall in May
Cottonwood, ID

Average snowfall in May - Cottonwood, ID
  • Average snowfall in May: 2.4"

The month with the highest snowfall is February (23.11").
The months with the least snowfall are July and August (0").

Average snowfall days in May
Cottonwood, ID

Average snowfall days in May - Cottonwood, ID
  • Average snowfall days in May: 4.2 days

The month with the highest number of snowfall days is December (19.9 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in May /
Average sunshine in May
Cottonwood, ID

Average daylight in May / Average sunshine in May - Cottonwood, ID
  • Average daylight in May: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in May
Cottonwood, ID

Average sunshine days in May - Cottonwood, ID
  • Average sunshine days in May: 10.7 days

The month with the most sunshine days is July (21.2 days).
The month with the least sunshine days is March (7.3 days).

Average UV index in May
Cottonwood, ID

Average UV index in May - Cottonwood, ID
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in May
Cottonwood, ID

Average cloud cover in May - Cottonwood, ID
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 13).

Average visibility in May
Cottonwood, ID

Average visibility in May - Cottonwood, ID
  • 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 January, February and December (4mi).

Cottonwood, Idaho, USA

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