May weather forecast
Grant, CO

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Weather in May

The last month of the spring, May, is a cool month in Grant, Colorado, with an average temperature fluctuating between 50.7°F (10.4°C) and 27.9°F (-2.3°C).

Temperature

With the onset of May, Grant sees a temperature rise, with the average high-temperature moving from April's wintry 40.6°F (4.8°C) to a cool 50.7°F (10.4°C). Grant registers a pronounced decline from daytime peak temperatures, averaging a freezing cold 27.9°F (-2.3°C) lows in May.

Humidity

In Grant, Colorado, the average relative humidity in May is 67%.

Rainfall

May is the month with the most rainfall. Rain falls for 16.7 days and accumulates 3.7" (94mm) of precipitation.

Snowfall

Months with snowfall in Grant are January through December. May is the month with the most snowfall in Grant. Snow falls for 16.1 days and accumulates 17.48" (444mm) of snow.

Daylight

In May, the average length of the day in Grant, Colorado, is 14h and 22min.
On the first day of May in Grant, sunrise is at 6:02 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:23 pm MDT.

Sunshine

The average sunshine in May is 10.4h.

UV index

In Grant, the average daily maximum UV index in May is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 3 in May translates into the following instructions:
Act with care - The need to guard against sun damage is communicated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Grant in May?

In Grant, 50.7°F (10.4°C) is the average high-temperature and 27.9°F (-2.3°C) is the average low-temperature during May.

What is the average humidity in May in Grant?

In Grant, the average relative humidity in May is 67%.

What is the wettest month in Grant?

May is the month with the most rainfall in Grant. Rain falls for 16.7 days and accumulates 3.7" (94mm) of precipitation.

How many days does it rain in May in Grant?

In May, in Grant, the rain falls for 16.7 days. Throughout May, 3.7" (94mm) of precipitation is accumulated.

What is the snowiest month in Grant?

The month with the most snowfall in Grant is May, when snow falls for 16.1 days and typically aggregates up to 17.48" (444mm) of snow.

How much does it snow in Grant in May?

In Grant, Colorado, in May, snow falls for 16.1 days, with typically accumulated 17.48" (444mm) of snow.

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

In May, the average day length in Grant, Colorado, is 14h and 22min.

What time are sunrise and sunset in May in Grant?

On the first day of May in Grant, Colorado, sunrise is at 6:02 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:23 pm MDT.

How many hours of sunshine does Grant have in May?

In Grant, Colorado, the average sunshine duration in May is 10.4h.

What is the UV index intensity in May in Grant?

In May, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Grant, CO

Average temperature in May - Grant, CO
  • Average high temperature in May: 50.7°F

The warmest month (with the highest average high temperature) is July (70°F).
The month with the lowest average high temperature is December (26.8°F).

  • Average low temperature in May: 27.9°F

The month with the highest average low temperature is July (44.2°F).
The coldest months (with the lowest average low temperature) are January and December (8.1°F).

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Average pressure in May
Grant, CO

Average pressure in May - Grant, CO
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and May (29.93"Hg).

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Average wind speed in May
Grant, CO

Average wind speed in May - Grant, CO
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

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Average humidity in May
Grant, CO

Average humidity in May - Grant, CO
  • Average humidity in May: 67%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is June (51%).

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Average rainfall in May
Grant, CO

Average rainfall in May - Grant, CO
  • Average rainfall in May: 3.7"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is December (0.79").

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Average rainfall days in May
Grant, CO

Average rainfall days in May - Grant, CO
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (3.4 days).

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Average snowfall in May
Grant, CO

Average snowfall in May - Grant, CO
  • Average snowfall in May: 17.48"

The month with the highest snowfall is May (17.48").
The month with the least snowfall is July (0.12").

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Average snowfall days in May
Grant, CO

Average snowfall days in May - Grant, CO
  • Average snowfall days in May: 16.1 days

The month with the highest number of snowfall days is April (18.5 days).
The months with the least snowfall days are July and August (0.5 days).

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

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 10h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

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Average sunshine days in May
Grant, CO

Average sunshine days in May - Grant, CO
  • Average sunshine days in May: 5.3 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (4.1 days).

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Average UV index in May
Grant, CO

Average UV index in May - Grant, CO
  • Average UV index in May: 3

The months with the highest UV index are June, July and August (UV index 4).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Grant, CO

Average cloud cover in May - Grant, CO
  • Average cloud cover in May: 32

The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are June and September (Cloud cover 18).

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Average visibility in May
Grant, CO

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

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Grant, Colorado, USA

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