May weather forecast
Cortez, CO

Share
The bright and red rays of the setting sun over the scenic layout of hills and plains of Cortez, Colorado
The bright and red rays of the setting sun over the scenic layout of hills and plains of Cortez, Colorado

Weather in May

In May, the weather in Cortez greatly welcomes the warm embrace of spring. The average high temperature begins to approach summer heat, reaching a satisfying 68.5°F (20.3°C), but the lows still retain a touch of spring's mild coolness at 44.6°F (7°C). As such, May serves as an opportune time for outdoor enthusiasts to revel in nature-based activities. Residents and visitors can comfortably enjoy the great outdoors without the harsh extremes of winter cold or summer heat.

Temperature

The shift into May is characterized by a rise in the average high-temperature, transitioning from April's moderate 58.8°F (14.9°C) to an agreeable 68.5°F (20.3°C). May's nights exhibit a sharp contrast from day highs, with an average temperature of 44.6°F (7°C).

Humidity

In May, the average relative humidity is 34%.

Rainfall

In Cortez, in May, during 5.3 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 78.9 rainfall days, and 9.84" (250mm) of precipitation is accumulated.

Snowfall

In Cortez, snow does not fall in May through September.

Daylight

The average length of the day in May is 14h and 11min.
On the first day of the month, sunrise is at 6:18 am and sunset at 8:04 pm. On the last day of May, sunrise is at 5:55 am and sunset at 8:29 pm MDT.

Sunshine

In Cortez, the average sunshine in May is 11.5h.

UV index

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In May, a regular UV index of 5 translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Enhance your sun protection with tightly woven, yet airy clothing.

Frequently asked questions

What are May temperatures in Cortez?

May temperatures vary between a high-temperature of 68.5°F (20.3°C) and a low-temperature of 44.6°F (7°C).

What is the average humidity in May?

In Cortez, the average relative humidity in May is 34%.

How many days does it rain in May?

In Cortez, during May, the rain falls for 5.3 days and regularly aggregates up to 0.51" (13mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May?

In Cortez, the average day length in May is 14h and 11min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:18 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:55 am and sunset at 8:29 pm MDT.

How long on average sun shines in May?

The average sunshine duration in May is 11.5h.

How high is the UV index in May?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Cortez, CO

Average temperature in May - Cortez, CO
  • Average high temperature in May: 68.5°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in May: 44.6°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in May
Cortez, CO

Average pressure in May - Cortez, CO
  • Average pressure in May: 29.88"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in May
Cortez, CO

Average wind speed in May - Cortez, CO
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.7mph).

Average humidity in May
Cortez, CO

Average humidity in May - Cortez, CO
  • Average humidity in May: 34%

The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is June (26%).

Average rainfall in May
Cortez, CO

Average rainfall in May - Cortez, CO
  • Average rainfall in May: 0.51"

The wettest months (with the highest rainfall) are January and December (1.26").
The driest month (with the least rainfall) is June (0.2").

Average rainfall days in May
Cortez, CO

Average rainfall days in May - Cortez, CO
  • Average rainfall days in May: 5.3 days

The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is June (2.8 days).

Average snowfall in May
Cortez, CO

Average snowfall in May - Cortez, CO
  • Average snowfall in May: 0"

The month with the highest snowfall is January (8.11").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Cortez, CO

Average snowfall days in May - Cortez, CO
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and December (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 11h and 3min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 30min).

Average sunshine days in May
Cortez, CO

Average sunshine days in May - Cortez, CO
  • Average sunshine days in May: 24.8 days

The month with the most sunshine days is June (26.2 days).
The month with the least sunshine days is February (17.6 days).

Average UV index in May
Cortez, CO

Average UV index in May - Cortez, 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
Cortez, CO

Average cloud cover in May - Cortez, CO
  • Average cloud cover in May: 15

The months with the most cloud cover are January and December (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 9).

Average visibility in May
Cortez, CO

Average visibility in May - Cortez, 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).

Cortez, Colorado, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location