May weather forecast
Richfield, ID

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Weather in May

The last month of the spring, May, is a mild month in Richfield, Idaho, with an average temperature varying between 39.7°F (4.3°C) and 60.4°F (15.8°C).

Temperature

The average high-temperature increases in May, moving from a cool 50°F (10°C) in April to a mild 60.4°F (15.8°C). May in Richfield generally records an average low-temperature of 39.7°F (4.3°C).

Humidity

In Richfield, the average relative humidity in May is 54%.

Rainfall

In Richfield, in May, it is raining for 12 days, with typically 0.98" (25mm) of accumulated precipitation. In Richfield, during the entire year, the rain falls for 74.4 days and collects up to 8.03" (204mm) of precipitation.

Snowfall

Months with snowfall in Richfield are January through May, September through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, Richfield aggregates 0.2" (5mm) of snow. In Richfield, during the entire year, snow falls for 44.1 days and aggregates up to 29.65" (753mm) of snow.

Daylight

In May, the average length of the day in Richfield is 14h and 41min.
On the first day of the month, sunrise is at 6:28 am and sunset at 8:38 pm. On the last day of May, sunrise is at 6:00 am and sunset at 9:08 pm MDT.

Sunshine

In May, the average sunshine is 11.1h.

UV index

In Richfield, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 4 translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
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Frequently asked questions

What are May temperatures in Richfield?

In May, in Richfield, the average high-temperature is 60.4°F (15.8°C), and the average low-temperature is 39.7°F (4.3°C).

What is the average humidity in May in Richfield?

In Richfield, Idaho, the average relative humidity in May is 54%.

How many days does it rain in May in Richfield?

In Richfield, in May, it is raining for 12 days, with typically 0.98" (25mm) of accumulated precipitation.

What is the last month it snows in Richfield?

May is the last month it regularly snows in Richfield, Idaho. During 0.4 snowfall days, in May, Richfield aggregates 0.2" (5mm) of snow.

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

The average day length in May in Richfield, Idaho, is 14h and 41min.

When are sunrise and sunset in May in Richfield?

In May, on the first day of the month, sunrise is at 6:28 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 9:08 pm MDT.

How many hours of sunshine does Richfield have in May?

In Richfield, the average sunshine duration in May is 11.1h.

How high is the UV index in May in Richfield?

The average daily maximum UV index in May in Richfield, Idaho, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Richfield, ID

Average temperature in May - Richfield, ID
  • Average high temperature in May: 60.4°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (27.9°F).

  • Average low temperature in May: 39.7°F

The months with the highest average low temperature are July and August (55.6°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure in May
Richfield, ID

Average pressure in May - Richfield, ID
  • Average pressure in May: 29.9"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in May
Richfield, ID

Average wind speed in May - Richfield, ID
  • Average wind speed in May: 7.2mph

The windiest months (with the highest average wind speed) are April and June (7.6mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).

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Average humidity in May
Richfield, ID

Average humidity in May - Richfield, ID
  • Average humidity in May: 54%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (32%).

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Average rainfall in May
Richfield, ID

Average rainfall in May - Richfield, ID
  • Average rainfall in May: 0.98"

The wettest month (with the highest rainfall) is February (1.02").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in May
Richfield, ID

Average rainfall days in May - Richfield, ID
  • Average rainfall days in May: 12 days

The month with the highest number of rainy days is May (12 days).
The month with the least rainy days is January (2.8 days).

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Average snowfall in May
Richfield, ID

Average snowfall in May - Richfield, ID
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (7.87").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in May
Richfield, ID

Average snowfall days in May - Richfield, ID
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Richfield, ID
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).

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Average sunshine days in May
Richfield, ID

Average sunshine days in May - Richfield, ID
  • Average sunshine days in May: 15.6 days

The month with the most sunshine days is October (23.5 days).
The month with the least sunshine days is May (15.6 days).

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Average UV index in May
Richfield, ID

Average UV index in May - Richfield, 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, March, October, November and December (UV index 2).

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Average cloud cover in May
Richfield, ID

Average cloud cover in May - Richfield, ID
  • Average cloud cover in May: 23

The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in May
Richfield, ID

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

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

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Richfield, Idaho, USA

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