May weather forecast
Ashton, ID

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Weather in May

The last month of the spring, May, is a refreshing month in Ashton, Idaho, with an average temperature varying between 59.4°F (15.2°C) and 36.1°F (2.3°C).

Temperature

Ashton's weather shows a temperature rise with the arrival of May, moving from a frosty 46°F (7.8°C) in April to a refreshing 59.4°F (15.2°C). A marked drop from daytime peak temperatures to an average low-temperature of 36.1°F (2.3°C) is observed during the nights in May.

Humidity

The average relative humidity in May is 61%.

Rainfall

In May, the rain falls for 17.3 days. Throughout May, 1.97" (50mm) of precipitation is accumulated. In Ashton, during the entire year, the rain falls for 121 days and collects up to 20.12" (511mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall. In Ashton, during May, snow falls for 3 days and regularly aggregates up to 2.09" (53mm) of snow. In Ashton, during the entire year, snow falls for 119.7 days and aggregates up to 88.23" (2241mm) of snow.

Daylight

In May, the average length of the day is 14h and 47min.
On the first day of May, sunrise is at 6:15 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 9:01 pm MDT.

Sunshine

In May, the average sunshine is 10.6h.

UV index

In Ashton, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: In May, the maximum UV index of 4 suggests these recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Jul 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The average high-temperature, in May, in Ashton, is 59.4°F (15.2°C), while the average low-temperature is 36.1°F (2.3°C).

What is the average humidity in May?

In May, the average relative humidity is 61%.

How many days does it rain in May?

In Ashton, during May, the rain falls for 17.3 days and regularly aggregates up to 1.97" (50mm) of precipitation.

How much does it snow in Ashton in May?

In Ashton, during May, snow falls for 3 days and regularly aggregates up to 2.09" (53mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 47min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:15 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 9:01 pm MDT.

How many hours of sunshine does Ashton have in May?

In Ashton, the average sunshine duration in May is 10.6h.

How high is the UV index in May?

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes 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
Ashton, ID

Average temperature in May - Ashton, ID
  • Average high temperature in May: 59.4°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is December (25°F).

  • Average low temperature in May: 36.1°F

The month with the highest average low temperature is July (50°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in May
Ashton, ID

Average pressure in May - Ashton, ID
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.27"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Ashton, ID

Average wind speed in May - Ashton, ID
  • Average wind speed in May: 6.1mph

The windiest month (with the highest average wind speed) is June (6.6mph).
The calmest month (with the lowest average wind speed) is January (4.4mph).

Average humidity in May
Ashton, ID

Average humidity in May - Ashton, ID
  • Average humidity in May: 61%

The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is August (42%).

Average rainfall in May
Ashton, ID

Average rainfall in May - Ashton, ID
  • Average rainfall in May: 1.97"

The wettest month (with the highest rainfall) is January (2.44").
The driest month (with the least rainfall) is July (0.59").

Average rainfall days in May
Ashton, ID

Average rainfall days in May - Ashton, ID
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in May
Ashton, ID

Average snowfall in May - Ashton, ID
  • Average snowfall in May: 2.09"

The month with the highest snowfall is January (20").
The months with the least snowfall are July and August (0").

Average snowfall days in May
Ashton, ID

Average snowfall days in May - Ashton, ID
  • Average snowfall days in May: 3 days

The month with the highest number of snowfall days is December (21.6 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in May / Average sunshine in May - Ashton, ID
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in May: 10h and 4min

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

Average sunshine days in May
Ashton, ID

Average sunshine days in May - Ashton, ID
  • Average sunshine days in May: 8.5 days

The month with the most sunshine days is July (19.9 days).
The month with the least sunshine days is April (6.7 days).

Average UV index in May
Ashton, ID

Average UV index in May - Ashton, 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 January, February, November and December (UV index 1).

Average cloud cover in May
Ashton, ID

Average cloud cover in May - Ashton, ID
  • Average cloud cover in May: 29

The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 12).

Average visibility in May
Ashton, ID

Average visibility in May - Ashton, ID
  • Average visibility in May: 6mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

Ashton, Idaho, USA

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