May weather forecast
Windsor, CO

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The stonework around the Cache la Poudre River dam section in Windsor, Colorado
The stonework around the Cache la Poudre River dam section in Windsor, Colorado

Weather in May

May enhances the climate with warmer temperatures and greener landscapes. However, it brings along significant rainfall amounting to 2.24" (57mm), strengthening the lushness spread across Windsor. A rise in humidity indicates that summer is gradually drawing near, hence the need for lighter clothing and sun protection. Residents can enjoy longer, sunnier days, ideal for picnics, gardening, and other outdoor activities. The harmonious blend of spring’s remnants and the snapshot of future summer days portrays May’s unique weather personality.

Temperature

May's arrival in Windsor coincides with a marginal rise in the average high-temperature, moving from April's refreshing 60.6°F (15.9°C) to an agreeable 68.9°F (20.5°C). May presents a pronounced divergence from daily peak temperatures in Windsor, with the average low-temperature of 45.1°F (7.3°C).

Humidity

The average relative humidity in May is 52%.

Rainfall

May is the month with the most rainfall in Windsor. Rain falls for 14.3 days and accumulates 2.24" (57mm) of precipitation.

Snowfall

Months with snowfall in Windsor, Colorado, are January through May, October through December. May is the last month it regularly snows. During 1.6 snowfall days, in May, Windsor aggregates 1.97" (50mm) of snow. Throughout the year, there are 41.7 snowfall days, and 24.84" (631mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 27min.
On the first day of May in Windsor, sunrise is at 5:57 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:23 pm MDT.

Sunshine

In Windsor, the average sunshine in May is 10.9h.

UV index

The average daily maximum UV index in May in Windsor 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 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Windsor?

In May, in Windsor, the average high-temperature is 68.9°F (20.5°C), and the average low-temperature is 45.1°F (7.3°C).

What is the average humidity in May in Windsor?

In May, the average relative humidity is 52%.

What is the rainiest month in Windsor?

The month with the most rainfall is May, when the rain falls for 14.3 days and typically aggregates up to 2.24" (57mm) of precipitation.

How many days does it rain in May in Windsor?

In Windsor, Colorado, during May, the rain falls for 14.3 days and regularly aggregates up to 2.24" (57mm) of precipitation.

What is the last month it snows in Windsor?

May is the last month it regularly snows in Windsor, Colorado. During 1.6 snowfall days, in May, Windsor aggregates 1.97" (50mm) of snow.

How many hours of daylight does Windsor have in May?

In Windsor, Colorado, the average day length in May is 14h and 27min.

When is the sunrise / sunset in May in Windsor?

In May, on the first day of the month, sunrise is at 5:57 am and sunset at 7:55 pm. On the last day of the month, in Windsor, sunrise is at 5:31 am and sunset at 8:23 pm MDT.

How long on average sun shines in May in Windsor?

The average sunshine duration in May in Windsor, Colorado, is 10.9h.

What is the UV index reading in May in Windsor?

In May, the average daily maximum UV index in Windsor, Colorado, is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Windsor, CO

Average temperature in May - Windsor, CO
  • Average high temperature in May: 68.9°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (39.2°F).

  • Average low temperature in May: 45.1°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is December (20.3°F).

Average pressure in May
Windsor, CO

Average pressure in May - Windsor, CO
  • Average pressure in May: 29.91"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Windsor, CO

Average wind speed in May - Windsor, CO
  • Average wind speed in May: 6.8mph

The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest months (with the lowest average wind speed) are August and December (5.8mph).

Average humidity in May
Windsor, CO

Average humidity in May - Windsor, CO
  • Average humidity in May: 52%

The months with the highest relative humidity are February and December (63%).
The month with the lowest relative humidity is August (42%).

Average rainfall in May
Windsor, CO

Average rainfall in May - Windsor, CO
  • Average rainfall in May: 2.24"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.35").

Average rainfall days in May
Windsor, CO

Average rainfall days in May - Windsor, CO
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (3.8 days).

Average snowfall in May
Windsor, CO

Average snowfall in May - Windsor, CO
  • Average snowfall in May: 1.97"

The month with the highest snowfall is February (4.41").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Windsor, CO

Average snowfall days in May - Windsor, CO
  • Average snowfall days in May: 1.6 days

The month with the highest number of snowfall days is February (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Windsor, CO

Average daylight in May / Average sunshine in May - Windsor, CO
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 10h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).

Average sunshine days in May
Windsor, CO

Average sunshine days in May - Windsor, CO
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in May
Windsor, CO

Average UV index in May - Windsor, CO
  • 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
Windsor, CO

Average cloud cover in May - Windsor, CO
  • Average cloud cover in May: 27

The months with the most cloud cover are February and April (Cloud cover 28).
The months with the least cloud cover are June, August and September (Cloud cover 17).

Average visibility in May
Windsor, CO

Average visibility in May - Windsor, CO
  • 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).

Windsor, Colorado, USA

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