May weather forecast
Glenrock, WY

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Weather in May

As spring matures in May, Glenrock, Wyoming, experiences a boost in temperatures and a significant drop in humidity from 62% to 57%. The days grow longer, and the city receives the most rainfall of the year at 1.85" (47mm), adding vitality to the thriving greenery. Pride of the spring season, blooming flowers add colors to the landscape, creating a vibrant contrast against the clear blue skies. In essence, May offers a mesmerizing blend of comfortable temperatures, accented by the aroma of fresh blooms, a testament to its reputation as the peak of spring.

Temperature

Glenrock experiences a temperature shift with the start of May, with average high-temperatures moving from a fresh 50.7°F (10.4°C) in April to a comfortable 61.3°F (16.3°C). An average low-temperature of 41.2°F (5.1°C) is expected during May.

Humidity

In May, the average relative humidity is 57%.

Rainfall

May is the month with the most rainfall. Rain falls for 14.8 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. May is the last month it regularly snows. During 2.4 snowfall days, in May, Glenrock aggregates 2.28" (58mm) of snow. In Glenrock, during the entire year, snow falls for 65.9 days and aggregates up to 33.03" (839mm) of snow.

Daylight

In Glenrock, the average length of the day in May is 14h and 40min.
On the first day of the month, sunrise is at 5:56 am and sunset at 8:04 pm. On the last day of May, sunrise is at 5:27 am and sunset at 8:35 pm MDT.

Sunshine

The average sunshine in May is 10.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 5 during May leads to these instructions:
Ensure safety - Recommendations to avert sunburn are presented. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Enhance your sun protection with tightly woven, yet airy clothing. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Glenrock?

In Glenrock, 61.3°F (16.3°C) is the average high-temperature and 41.2°F (5.1°C) is the average low-temperature during May.

What is the average humidity in May?

In Glenrock, the average relative humidity in May is 57%.

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 14.8 days and accumulates 1.85" (47mm) of precipitation.

How much does it rain in May?

In Glenrock, during May, the rain falls for 14.8 days and regularly aggregates up to 1.85" (47mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 2.4 snowfall days, in May, Glenrock aggregates 2.28" (58mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 40min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:56 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:35 pm MDT.

How many hours of sunshine does Glenrock have in May?

In May, the average sunshine duration is 10.6h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from 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
Glenrock, WY

Average temperature in May - Glenrock, WY
  • Average high temperature in May: 61.3°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is December (29.3°F).

  • Average low temperature in May: 41.2°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).

Average pressure in May
Glenrock, WY

Average pressure in May - Glenrock, WY
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in May
Glenrock, WY

Average wind speed in May - Glenrock, WY
  • Average wind speed in May: 10.2mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest months (with the lowest average wind speed) are July and August (8.8mph).

Average humidity in May
Glenrock, WY

Average humidity in May - Glenrock, WY
  • Average humidity in May: 57%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (39%).

Average rainfall in May
Glenrock, WY

Average rainfall in May - Glenrock, WY
  • Average rainfall in May: 1.85"

The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in May
Glenrock, WY

Average rainfall days in May - Glenrock, WY
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is May (14.8 days).
The months with the least rainy days are January and December (4.9 days).

Average snowfall in May
Glenrock, WY

Average snowfall in May - Glenrock, WY
  • Average snowfall in May: 2.28"

The month with the highest snowfall is November (4.84").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Glenrock, WY

Average snowfall days in May - Glenrock, WY
  • Average snowfall days in May: 2.4 days

The month with the highest number of snowfall days is February (11.9 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Glenrock, WY

Average daylight in May / Average sunshine in May - Glenrock, WY
  • 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: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).

Average sunshine days in May
Glenrock, WY

Average sunshine days in May - Glenrock, WY
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is November (18.9 days).
The months with the least sunshine days are April and May (11.3 days).

Average UV index in May
Glenrock, WY

Average UV index in May - Glenrock, WY
  • Average UV index in May: 5

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

Average cloud cover in May
Glenrock, WY

Average cloud cover in May - Glenrock, WY
  • Average cloud cover in May: 30

The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 13).

Average visibility in May
Glenrock, WY

Average visibility in May - Glenrock, 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).

Glenrock, Wyoming, USA

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