May weather forecast
Nelson, CO

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Weather in May

The last month of the spring, May, is an agreeable month in Nelson, Colorado, with an average temperature fluctuating between 47.3°F (8.5°C) and 69.3°F (20.7°C).

Temperature

As April transitions into May, Nelson notices a gentle rise in the average high-temperature, transitioning from a moderate 60.6°F (15.9°C) to a pleasant 69.3°F (20.7°C). Significant dips from daytime highs mark the May nights in Nelson, with a consistent average temperature of 47.3°F (8.5°C).

Humidity

In Nelson, the average relative humidity in May is 54%.

Rainfall

May is the month with the most rainfall. Rain falls for 14 days and accumulates 2.2" (56mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Nelson aggregates 0.12" (3mm) of snow. Throughout the year, there are 33.8 snowfall days, and 12.83" (326mm) of snow is accumulated.

Daylight

In May, the average length of the day in Nelson is 14h and 26min.
On the first day of the month, sunrise is at 5:52 am and sunset at 7:50 pm. On the last day of May, sunrise is at 5:27 am and sunset at 8:17 pm MDT.

Sunshine

In Nelson, Colorado, the average sunshine in May is 10.8h.

UV index

In May, the average daily maximum UV index in Nelson is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In May, an average UV index of 5 transforms into the following instructions:
Exercise prevention - Warding off sunburn is urged. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the usual temperature for Nelson in May?

The high-temperature, in May, in Nelson, is 69.3°F (20.7°C), while the low-temperature averages to 47.3°F (8.5°C).

What is the average humidity in May in Nelson?

The average relative humidity in May in Nelson, Colorado, is 54%.

What is the rainiest month in Nelson?

The month with the most rainfall in Nelson is May, when the rain falls for 14 days and typically aggregates up to 2.2" (56mm) of precipitation.

How much does it rain in Nelson in May?

In Nelson, Colorado, in May, during 14 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

What is the last month it snows in Nelson?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Nelson aggregates 0.12" (3mm) of snow.

How many hours of daylight does Nelson have in May?

The average day length in May is 14h and 26min.

What time are sunrise and sunset in May in Nelson?

In May, on the first day of the month, sunrise is at 5:52 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:17 pm MDT.

How many hours of sunshine does Nelson have in May?

The average sunshine duration in May in Nelson is 10.8h.

How high is the UV index in May in Nelson?

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

Average temperature in May - Nelson, CO
  • Average high temperature in May: 69.3°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (38.7°F).

  • Average low temperature in May: 47.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is December (22.5°F).

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Average pressure in May
Nelson, CO

Average pressure in May - Nelson, CO
  • Average pressure in May: 29.89"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in May
Nelson, CO

Average wind speed in May - Nelson, CO
  • Average wind speed in May: 9.4mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is December (7.8mph).

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Average humidity in May
Nelson, CO

Average humidity in May - Nelson, CO
  • Average humidity in May: 54%

The month with the highest relative humidity is January (64%).
The months with the lowest relative humidity are August and September (45%).

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Average rainfall in May
Nelson, CO

Average rainfall in May - Nelson, CO
  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.39").

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Average rainfall days in May
Nelson, CO

Average rainfall days in May - Nelson, CO
  • Average rainfall days in May: 14 days

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (2.9 days).

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Average snowfall in May
Nelson, CO

Average snowfall in May - Nelson, CO
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Nelson, CO

Average snowfall days in May - Nelson, CO
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is February (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Nelson, CO
  • Average daylight in May: 14h and 2min

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 24min).

  • Average sunshine in May: 10h and 5min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 6h and 30min).

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Average sunshine days in May
Nelson, CO

Average sunshine days in May - Nelson, CO
  • Average sunshine days in May: 14.3 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in May
Nelson, CO

Average UV index in May - Nelson, 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).

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Average cloud cover in May
Nelson, CO

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

The month with the most cloud cover is February (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in May
Nelson, CO

Average visibility in May - Nelson, 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).

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Nelson, Colorado, USA

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