January weather forecast
Greenhorn, CO

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Weather in January

January, the same as December, is another cold winter month in Greenhorn, Colorado, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 42.4°F (5.8°C).

Temperature

Upon the onset of January, Greenhorn witnesses an average high-temperature of a still wintry 42.4°F (5.8°C), showing a close resemblance to the prior month. Greenhorn's temperature lowers to a mean of 24.1°F (-4.4°C) during the nights in January.

Humidity

In January, the average relative humidity is 61%.

Rainfall

In Greenhorn, during January, the rain falls for 4.4 days and regularly aggregates up to 0.47" (12mm) of precipitation. In Greenhorn, Colorado, during the entire year, the rain falls for 120.5 days and collects up to 14.92" (379mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Greenhorn, in January, during 6.5 snowfall days, 2.91" (74mm) of snow is typically accumulated. In Greenhorn, during the entire year, snow falls for 33.9 days and aggregates up to 23.27" (591mm) of snow.

Daylight

The average length of the day in January is 9h and 53min.
On the first day of the month, sunrise is at 7:15 am and sunset at 4:50 pm. On the last day of January, sunrise is at 7:04 am and sunset at 5:21 pm MST.

Sunshine

The average sunshine in January is 7h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Greenhorn. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the maximum UV index of 2 transforms into these recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is January?

Greenhorn in January has an average high-temperature of 42.4°F (5.8°C) and an average low-temperature of 24.1°F (-4.4°C).

What is the average humidity in January?

In Greenhorn, the average relative humidity in January is 61%.

How much does it rain in January?

In Greenhorn, Colorado, in January, it is raining for 4.4 days, with typically 0.47" (12mm) of accumulated precipitation.

How many days does it snow in January in Greenhorn?

In Greenhorn, in January, snow falls for 6.5 days, with typically accumulated 2.91" (74mm) of snow.

How many hours of daylight does Greenhorn have in January?

The average day length in January is 9h and 53min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:15 am and sunset at 4:50 pm. On the last day of the month, in Greenhorn, sunrise is at 7:04 am and sunset at 5:21 pm MST.

How many hours of sunshine does Greenhorn have in January?

In January, the average sunshine duration is 7h.

When is the lowest UV index?

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

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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 January
Greenhorn, CO

Average temperature in January - Greenhorn, CO
  • Average high temperature in January: 42.4°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is December (41.5°F).

  • Average low temperature in January: 24.1°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is December (23°F).

Average pressure in January
Greenhorn, CO

Average pressure in January - Greenhorn, CO
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.89"Hg).

Average wind speed in January
Greenhorn, CO

Average wind speed in January - Greenhorn, CO
  • Average wind speed in January: 7.5mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in January
Greenhorn, CO

Average humidity in January - Greenhorn, CO
  • Average humidity in January: 61%

The month with the highest relative humidity is February (62%).
The month with the lowest relative humidity is June (38%).

Average rainfall in January
Greenhorn, CO

Average rainfall in January - Greenhorn, CO
  • Average rainfall in January: 0.47"

The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is November (0.43").

Average rainfall days in January
Greenhorn, CO

Average rainfall days in January - Greenhorn, CO
  • Average rainfall days in January: 4.4 days

The month with the highest number of rainy days is July (20.4 days).
The month with the least rainy days is November (3.9 days).

Average snowfall in January
Greenhorn, CO

Average snowfall in January - Greenhorn, CO
  • Average snowfall in January: 2.91"

The month with the highest snowfall is February (6.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Greenhorn, CO

Average snowfall days in January - Greenhorn, CO
  • Average snowfall days in January: 6.5 days

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Greenhorn, CO

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 7h and 0min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 48min).

Average sunshine days in January
Greenhorn, CO

Average sunshine days in January - Greenhorn, CO
  • Average sunshine days in January: 22.6 days

The month with the most sunshine days is November (23.8 days).
The month with the least sunshine days is July (5.1 days).

Average UV index in January
Greenhorn, CO

Average UV index in January - Greenhorn, 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
Greenhorn, CO

Average cloud cover in January - Greenhorn, CO
  • Average cloud cover in January: 20

The months with the most cloud cover are February and April (Cloud cover 23).
The months with the least cloud cover are June and September (Cloud cover 14).

Average visibility in January
Greenhorn, CO

Average visibility in January - Greenhorn, 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).

Greenhorn, Colorado, USA

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