May weather forecast
Jay Em, WY

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Weather in May

The last month of the spring, May, is an enjoyable month in Jay Em, Wyoming, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 64.2°F (17.9°C).

Temperature

In May, the meteorological conditions change with the average high-temperature moving from a cool 54.5°F (12.5°C) in April to a refreshing 64.2°F (17.9°C). Jay Em records a steady low-temperature average of 44.6°F (7°C) during May.

Humidity

In May, the average relative humidity in Jay Em is 60%.

Rainfall

The wettest months in Jay Em are May and June, with an average 1.57" (40mm) of rainfall.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 1.8 snowfall days, in May, Jay Em aggregates 2.2" (56mm) of snow. Throughout the year, there are 43.6 snowfall days, and 15.63" (397mm) of snow is accumulated.

Daylight

In Jay Em, the average length of the day in May is 14h and 38min.
On the first day of the month, sunrise is at 5:51 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:22 am and sunset at 8:27 pm MDT.

Sunshine

In May, the average sunshine is 10.3h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Jay Em in May?

May temperatures vary between a high-temperature of 64.2°F (17.9°C) and a low-temperature of 44.6°F (7°C).

What is the average humidity in May?

In May, the average relative humidity is 60%.

What is the wettest month?

The months with the most rainfall are May and June, with an average 1.57" (40mm) of precipitation.

How much does it rain in May?

In Jay Em, Wyoming, during May, the rain falls for 13.4 days and regularly aggregates up to 1.57" (40mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 1.8 snowfall days, in May, Jay Em aggregates 2.2" (56mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 38min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:51 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:27 pm MDT.

How many hours of sunshine does Jay Em have in May?

In May, the average sunshine duration is 10.3h.

What is the UV index reading in May in Jay Em?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Jay Em, WY

Average temperature in May - Jay Em, WY
  • Average high temperature in May: 64.2°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in May: 44.6°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is December (18.9°F).

Average pressure in May
Jay Em, WY

Average pressure in May - Jay Em, WY
  • Average pressure in May: 29.9"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in May
Jay Em, WY

Average wind speed in May - Jay Em, WY
  • Average wind speed in May: 11.1mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

Average humidity in May
Jay Em, WY

Average humidity in May - Jay Em, WY
  • Average humidity in May: 60%

The month with the highest relative humidity is January (74%).
The months with the lowest relative humidity are August and September (44%).

Average rainfall in May
Jay Em, WY

Average rainfall in May - Jay Em, WY
  • Average rainfall in May: 1.57"

The wettest months (with the highest rainfall) are May and June (1.57").
The driest month (with the least rainfall) is January (0.28").

Average rainfall days in May
Jay Em, WY

Average rainfall days in May - Jay Em, WY
  • Average rainfall days in May: 13.4 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is December (2.7 days).

Average snowfall in May
Jay Em, WY

Average snowfall in May - Jay Em, WY
  • Average snowfall in May: 2.2"

The month with the highest snowfall is March (2.56").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Jay Em, WY

Average snowfall days in May - Jay Em, WY
  • Average snowfall days in May: 1.8 days

The month with the highest number of snowfall days is February (8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Jay Em, WY

Average daylight in May / Average sunshine in May - Jay Em, WY
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 10h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 12min).

Average sunshine days in May
Jay Em, WY

Average sunshine days in May - Jay Em, WY
  • Average sunshine days in May: 14 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in May
Jay Em, WY

Average UV index in May - Jay Em, WY
  • Average UV index in May: 5

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

Average cloud cover in May
Jay Em, WY

Average cloud cover in May - Jay Em, WY
  • Average cloud cover in May: 32

The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in May
Jay Em, WY

Average visibility in May - Jay Em, WY
  • 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).

Jay Em, Wyoming, USA

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