May weather forecast
Holly, CO

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Weather in May

The last month of the spring, May, is a warm month in Holly, Colorado, with an average temperature varying between 53.2°F (11.8°C) and 76.8°F (24.9°C).

Temperature

May brings an increase in the average high-temperature, progressing from a comfortable 67.6°F (19.8°C) in April to a moderately hot 76.8°F (24.9°C). Holly's May nights see a large temperature deviation, with temperatures resting at a low of 53.2°F (11.8°C).

Humidity

In Holly, the average relative humidity in May is 50%.

Rainfall

In May, the rain falls for 11.8 days. Throughout May, 1.77" (45mm) of precipitation is accumulated. In Holly, Colorado, during the entire year, the rain falls for 87.3 days and collects up to 11.73" (298mm) of precipitation.

Snowfall

Months with snowfall in Holly are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Holly aggregates 0.08" (2mm) of snow. Throughout the year, in Holly, Colorado, there are 18.3 snowfall days, and 6.1" (155mm) of snow is accumulated.

Daylight

In Holly, the average length of the day in May is 14h and 15min.
On the first day of the month, sunrise is at 5:51 am and sunset at 7:39 pm. On the last day of May, sunrise is at 5:27 am and sunset at 8:05 pm MDT.

Sunshine

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

UV index

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A daily maximum UV index of 6 in May translates into the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Holly in May?

The average high-temperature, in May, in Holly, is 76.8°F (24.9°C), while the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in May in Holly?

In May, the average relative humidity is 50%.

How many days does it rain in May in Holly?

In Holly, Colorado, in May, it is raining for 11.8 days, with typically 1.77" (45mm) of accumulated precipitation.

What is the last month it snows in Holly?

May is the last month it regularly snows in Holly. During 0.1 snowfall days, in May, Holly aggregates 0.08" (2mm) of snow.

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

The average day length in May in Holly, Colorado, is 14h and 15min.

When is the sunrise / sunset in May in Holly?

On the first day of May in Holly, Colorado, sunrise is at 5:51 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:05 pm MDT.

How many hours of sunshine does Holly have in May?

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

What is the UV index intensity in May in Holly?

The average daily maximum UV index in May in Holly is 6. A UV Index estimate of 6 to 7 represents a high health 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
Holly, CO

Average temperature in May - Holly, CO
  • Average high temperature in May: 76.8°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is December (44.4°F).

  • Average low temperature in May: 53.2°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).

Average pressure in May
Holly, CO

Average pressure in May - Holly, CO
  • Average pressure in May: 29.85"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).

Average wind speed in May
Holly, CO

Average wind speed in May - Holly, CO
  • Average wind speed in May: 12.1mph

The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is January (9.9mph).

Average humidity in May
Holly, CO

Average humidity in May - Holly, CO
  • Average humidity in May: 50%

The month with the highest relative humidity is January (60%).
The month with the lowest relative humidity is June (44%).

Average rainfall in May
Holly, CO

Average rainfall in May - Holly, CO
  • Average rainfall in May: 1.77"

The wettest month (with the highest rainfall) is June (1.97").
The driest month (with the least rainfall) is January (0.28").

Average rainfall days in May
Holly, CO

Average rainfall days in May - Holly, CO
  • Average rainfall days in May: 11.8 days

The months with the highest number of rainy days are May and July (11.8 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in May
Holly, CO

Average snowfall in May - Holly, CO
  • Average snowfall in May: 0.08"

The month with the highest snowfall is December (1.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Holly, CO

Average snowfall days in May - Holly, CO
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is December (4.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Holly, CO
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 10h and 5min

The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

Average sunshine days in May
Holly, CO

Average sunshine days in May - Holly, CO
  • Average sunshine days in May: 16.8 days

The month with the most sunshine days is November (24.8 days).
The month with the least sunshine days is July (16 days).

Average UV index in May
Holly, CO

Average UV index in May - Holly, CO
  • Average UV index in May: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).

Average cloud cover in May
Holly, CO

Average cloud cover in May - Holly, CO
  • Average cloud cover in May: 25

The month with the most cloud cover is February (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 15).

Average visibility in May
Holly, CO

Average visibility in May - Holly, 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).

Holly, Colorado, USA

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