May weather forecast
Welby, CO

Weather in May

The last month of the spring, May, is an agreeable month in Welby, Colorado, with temperature in the range of an average low of 44.4°F (6.9°C) and an average high of 69.1°F (20.6°C).

Temperature

In May, the average high-temperature slightly increases, from a mild 60.3°F (15.7°C) in April, to an agreeable 69.1°F (20.6°C). In May, the average low-temperature is 44.4°F (6.9°C).

Humidity

The average relative humidity in Welby, Colorado, is 51%.

Rainfall

In Welby, in May, it is raining for 6.2 days, with typically 0.55" (14mm) of accumulated precipitation. Throughout the year, in Welby, there are 48.3 rainfall days, and 3.19" (81mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Welby. During 0.8 snowfall days, Welby aggregates 1.26" (32mm) of snow. Throughout the year, there are 19.6 snowfall days, and 8.5" (216mm) of snow is accumulated.

Daylight

In Welby, the average length of the day is 14.4h.

Sunshine

The average sunshine in Welby, Colorado, is 11.3h.

UV index

The average daily maximum UV index in Welby is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in May in Welby?

In Welby, the average relative humidity in May is 51%.

How many days does it rain in May in Welby?

In Welby, Colorado, during May, the rain falls for 6.2 days and regularly aggregates up to 0.55" (14mm) of precipitation.

What is the last month it snows in Welby?

May is the last month it regularly snows. During 0.8 snowfall days, in May, Welby aggregates 1.26" (32mm) of snow.

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

In Welby, Colorado, the average length of the day in May is 14.4h.

How long on average sun shines in May in Welby?

In Welby, the average sunshine in May is 11.3h.

What is the UV index reading in May in Welby?

In Welby, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in May
Welby, CO

Average temperature in May - Welby, CO
  • Average high temperature in May: 69.1°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in May: 44.4°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

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Average pressure in May
Welby, CO

Average pressure in May - Welby, CO
  • Average pressure in May: 29.92"

The month with the highest atmospheric pressure is January (30.14").
Months with the lowest atmospheric pressure are April and June (29.91").

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Average wind speed in May
Welby, CO

Average wind speed in May - Welby, CO
  • Average wind speed in May: 6.3mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).

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Average humidity in May
Welby, CO

Average humidity in May - Welby, CO
  • Average humidity in May: 51%

The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in May
Welby, CO

Average rainfall in May - Welby, CO
  • Average rainfall in May: 0.55"

The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are January and December (0.08").

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Average rainfall days in May
Welby, CO

Average rainfall days in May - Welby, CO
  • Average rainfall days in May: 6.2 days

The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is February (1.2 days).

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Average snowfall in May
Welby, CO

Average snowfall in May - Welby, CO
  • Average snowfall in May: 1.26"

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

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Average snowfall days in May
Welby, CO

Average snowfall days in May - Welby, CO
  • Average snowfall days in May: 0.8 days

The month with the highest number of snowfall days is February (4.7 days).
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
Welby, CO

Average daylight in May / Average sunshine in May - Welby, CO
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 11.3h

Months with the most sunshine are June and July (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 6.7h).

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Average sunshine days in May
Welby, CO

Average sunshine days in May - Welby, CO
  • Average sunshine days in May: 21.9 days

The month with the most sunshine days is December (28.5 days).
The month with the least sunshine days is July (19.6 days).

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Average UV index in May
Welby, CO

Average UV index in May - Welby, CO
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Welby, CO

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

Months with the most cloud cover are February, April and May (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).

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Average visibility in May
Welby, CO

Average visibility in May - Welby, CO
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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