January weather forecast
Cortez, CO

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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 January

The weather in Cortez, Colorado in January marks the start of a new year with a firm hold on winter's cold grip. The month stands as one of the coldest, with the mercury dipping to a significant low of 19.8°F (-6.8°C) and climbing to a high of just 35.1°F (1.7°C) on average. The chill extends into the regular snowfall in January, making it the month with third most snowfall of the year. A white blanket of snow often covers the city, which can be a delight for lovers of winter sports. It's a time to bundle up in warm clothing and enjoy the crisp winter air.

Temperature

January, with its average high-temperature of 35.1°F (1.7°C) and an average low-temperature of 19.8°F (-6.8°C), holds the record as the coldest month.

Humidity

January is the most humid month, with an average relative humidity of 73%.

Rainfall

The wettest months in Cortez are January and December, with an average 1.26" (32mm) of rainfall.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 8.5 days and typically aggregates up to 8.11" (206mm) of snow.

Daylight

In Cortez, Colorado, the average length of the day in January is 9h and 56min.
On the first day of the month, sunrise is at 7:28 am and sunset at 5:07 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:37 pm MST.

Sunshine

January and December, with an average of 6.5h of sunshine, are months with the least sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

What part of the year is the coldest?

January is the month that records the lowest temperatures, with averages ranging from a high of 35.1°F (1.7°C) to a low of 19.8°F (-6.8°C).

How cold is January?

In Cortez, in January, the average high-temperature is 35.1°F (1.7°C), and the average low-temperature is 19.8°F (-6.8°C).

What is the most humid month?

January is the most humid month, with an average relative humidity of 73%.

What is the average humidity in January?

The average relative humidity in January is 73%.

What is the rainiest month?

The wettest months are January and December, with an average 1.26" (32mm) of rainfall.

How much does it rain in January?

In January, the rain falls for 6.1 days. Throughout January, 1.26" (32mm) of precipitation is accumulated.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 8.5 days and typically aggregates up to 8.11" (206mm) of snow.

How many days does it snow in January?

In Cortez, in January, snow falls for 8.5 days, with typically accumulated 8.11" (206mm) of snow.

What is the average length of the day in January in Cortez?

In January, the average day length is 9h and 56min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:28 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:37 pm MST.

What is the month with the least sunshine?

The months with the least sunshine in Cortez are January and December, with an average of 6.5h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 6.5h.

What is the month with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January?

In January, the average daily maximum UV index in Cortez is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe 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 January
Cortez, CO

Average temperature in January - Cortez, CO
  • Average high temperature in January: 35.1°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 January: 19.8°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 January
Cortez, CO

Average pressure in January - Cortez, CO
  • Average pressure in January: 30.23"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 January
Cortez, CO

Average wind speed in January - Cortez, CO
  • Average wind speed in January: 5.7mph

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 January
Cortez, CO

Average humidity in January - Cortez, CO
  • Average humidity in January: 73%

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

Average rainfall in January
Cortez, CO

Average rainfall in January - Cortez, CO
  • Average rainfall in January: 1.26"

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 January
Cortez, CO

Average rainfall days in January - Cortez, CO
  • Average rainfall days in January: 6.1 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 January
Cortez, CO

Average snowfall in January - Cortez, CO
  • Average snowfall in January: 8.11"

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 January
Cortez, CO

Average snowfall days in January - Cortez, CO
  • Average snowfall days in January: 8.5 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 January /
Average sunshine in January
Cortez, CO

Average daylight in January / Average sunshine in January - Cortez, CO
  • Average daylight in January: 9h and 5min

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 January: 6h 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 January
Cortez, CO

Average sunshine days in January - Cortez, CO
  • Average sunshine days in January: 20.7 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 January
Cortez, CO

Average UV index in January - Cortez, CO
  • Average UV index in January: 2

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 January
Cortez, CO

Average cloud cover in January - Cortez, CO
  • Average cloud cover in January: 27

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 January
Cortez, CO

Average visibility in January - Cortez, CO
  • Average visibility in January: 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

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