May weather forecast
Crystal, MN

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Weather in May

May, the last month of the spring in Crystal, is a refreshing month, with an average temperature varying between 49.3°F (9.6°C) and 65.8°F (18.8°C).

Temperature

The transition from April to May brings a temperature rise, with average high-temperatures increasing from a fresh 52.5°F (11.4°C) to a comfortable 65.8°F (18.8°C). Throughout May nights, Crystal experiences a consistent temperature average of 49.3°F (9.6°C).

Humidity

In Crystal, the average relative humidity in May is 71%.

Rainfall

In Crystal, Minnesota, in May, during 14.8 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, there are 120.1 rainfall days, and 22.09" (561mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, Crystal aggregates 0.12" (3mm) of snow. Throughout the year, there are 57.3 snowfall days, and 23.31" (592mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 53min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:19 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:52 pm CDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

In Crystal, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Undertake protective steps - Preventing sun damage is advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The average high-temperature and low-temperature during May are 65.8°F (18.8°C) and 49.3°F (9.6°C) respectively.

What is the average humidity in May?

In Crystal, the average relative humidity in May is 71%.

How many days does it rain in May?

In Crystal, during May, the rain falls for 14.8 days and regularly aggregates up to 2.72" (69mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows in Crystal. During 0.4 snowfall days, in May, Crystal aggregates 0.12" (3mm) of snow.

How many hours of daylight does Crystal have in May?

The average day length in May is 14h and 53min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:01 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:52 pm CDT.

How many hours of sunshine does Crystal have in May?

In May, the average sunshine duration is 8.6h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Crystal, MN

Average temperature in May - Crystal, MN
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (20.1°F).

  • Average low temperature in May: 49.3°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).

Average pressure in May
Crystal, MN

Average pressure in May - Crystal, MN
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in May
Crystal, MN

Average wind speed in May - Crystal, MN
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in May
Crystal, MN

Average humidity in May - Crystal, MN
  • Average humidity in May: 71%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (70%).

Average rainfall in May
Crystal, MN

Average rainfall in May - Crystal, MN
  • Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is June (3.82").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in May
Crystal, MN

Average rainfall days in May - Crystal, MN
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is January (2.5 days).

Average snowfall in May
Crystal, MN

Average snowfall in May - Crystal, MN
  • Average snowfall in May: 0.12"

The month with the highest snowfall is December (5.04").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Crystal, MN

Average snowfall days in May - Crystal, MN
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Crystal, MN

Average daylight in May / Average sunshine in May - Crystal, MN
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in May
Crystal, MN

Average sunshine days in May - Crystal, MN
  • Average sunshine days in May: 14.1 days

The month with the most sunshine days is January (18.4 days).
The month with the least sunshine days is June (10.8 days).

Average UV index in May
Crystal, MN

Average UV index in May - Crystal, MN
  • Average UV index in May: 5

The months with the highest UV index are June and 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
Crystal, MN

Average cloud cover in May - Crystal, MN
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in May
Crystal, MN

Average visibility in May - Crystal, MN
  • Average visibility in May: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Crystal, Minnesota, USA

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