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

In Cortez, January records the lowest average temperatures, peaking at 35.1°F (1.7°C) and reaching a low of 19.8°F (-6.8°C).

Humidity

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

Rainfall

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

Snowfall

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

Daylight

In January, the average length of the day in Cortez is 9h and 56min.
On the first day of January in Cortez, Colorado, 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.

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 in Cortez. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What month is the coldest in Cortez?

The month of January, characterized by an average high of 35.1°F (1.7°C) and a low of 19.8°F (-6.8°C), is recognized as the coldest in Cortez, Colorado.

How cold is January in Cortez?

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

What is the most humid month in Cortez?

With an average relative humidity of 73%, January is the most humid month in Cortez.

What is the average humidity in January in Cortez?

The average relative humidity in January in Cortez is 73%.

What is the wettest month in Cortez?

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

How much does it rain in Cortez in January?

In Cortez, Colorado, during January, the rain falls for 6.1 days and regularly aggregates up to 1.26" (32mm) of precipitation.

What is the snowiest month in Cortez?

January is the month with the most snowfall. Snow falls for 8.5 days and accumulates 8.11" (206mm) of snow.

How many days does it snow in January in Cortez?

In Cortez, Colorado, in January, during 8.5 snowfall days, 8.11" (206mm) of snow is typically accumulated.

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

The average day length in January in Cortez, Colorado, is 9h and 56min.

What time are sunrise and sunset in January in Cortez?

On the first day of January in Cortez, 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 are the months with the least sunshine in Cortez?

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

How long on average sun shines in January in Cortez?

In January, the average sunshine duration is 6.5h.

What is the month with the lowest UV index in Cortez?

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

What is the UV index intensity in January in Cortez?

In Cortez, Colorado, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
37.2°F 2.9°C
35.1°F 1.7°C
39.4°F 4.1°C
Average low temperature
21.7°F -5.7°C
19.8°F -6.8°C
23.7°F -4.6°C
Average pressure
30.16" 766mmHg
30.23" 768mmHg
30.09" 764mmHg
Average wind speed
5.9mph 9.5km/h
5.7mph 9.2km/h
6.7mph 10.8km/h
Average max. wind speed
6.5mph 10.5km/h
6.3mph 10.1km/h
7.5mph 12.1km/h
Average wind speed gusts
10.6mph 17.1km/h
10.5mph 16.9km/h
11.5mph 18.5km/h
Average humidity
67%
73%
68%
Average rainfall
1.26" 32mm
1.26" 32mm
1.22" 31mm
Average rainfall days
7.5
6.1
5.3
Average snowfall
7.44" 189mm
8.11" 206mm
7.56" 192mm
Average snowfall days
8.5
8.5
8.3
Average daylight
9h 4min
9h 5min
10h 5min
Average sunshine
6h 3min
6h 3min
7h 1min
Average sunshine days
19
20.7
17.6
Average UV index
2
2
2
Average cloud cover
27%
27%
26%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Cortez, Colorado, USA

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