January weather forecast
Prospect Heights, CO

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Weather in January

January, like December, in Prospect Heights, Colorado, is a wintry winter month, with temperature in the range of an average low of 19°F (-7.2°C) and an average high of 37°F (2.8°C).

Temperature

January tends to be the coldest month, with temperatures averaging a daily high of 37°F (2.8°C) and a low of 19°F (-7.2°C).

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 69%.

Rainfall

The months with the least rainfall are January and November Rain falls for 3.3 days and accumulates 0.31" (8mm) of rain.

Snowfall

January through May, October through December are months with snowfall in Prospect Heights. In January, in Prospect Heights, it is snowing for 6 days. Throughout January, 2.28" (58mm) of snow is accumulated. Throughout the year, there are 38 snowfall days, and 23.94" (608mm) of snow is accumulated.

Daylight

In Prospect Heights, Colorado, the average length of the day in January is 9h and 51min.
On the first day of January, sunrise is at 7:18 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:21 pm MST.

Sunshine

The average sunshine in January is 7.2h.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Prospect Heights. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 2 in January leads to these guidelines:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Boost your sun resistance with garments that are densely woven yet spacious. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Prospect Heights?

January stands out as Prospect Heights's coldest month, with temperatures ranging between an average high of 37°F (2.8°C) and a low of 19°F (-7.2°C).

How cold is January in Prospect Heights?

In Prospect Heights, 37°F (2.8°C) is the average high-temperature and 19°F (-7.2°C) is the average low-temperature during January.

What are the most humid months in Prospect Heights?

January and February, with an average relative humidity of 69%, are most humid months.

What is the average humidity in January in Prospect Heights?

The average relative humidity in January in Prospect Heights, Colorado, is 69%.

What is the driest month in Prospect Heights?

The months with the least rainfall in Prospect Heights are January and November Rain falls for 3.3 days and accumulates 0.31" (8mm) of rain.

How much does it rain in Prospect Heights in January?

In January, the rain falls for 3.3 days. Throughout January, 0.31" (8mm) of precipitation is accumulated.

How much does it snow in Prospect Heights in January?

In Prospect Heights, Colorado, in January, snow falls for 6 days, with typically accumulated 2.28" (58mm) of snow.

How many hours of daylight does Prospect Heights have in January?

In Prospect Heights, Colorado, the average day length in January is 9h and 51min.

When are sunrise and sunset in January in Prospect Heights?

In January, on the first day of the month, sunrise is at 7:18 am and sunset at 4:50 pm. On the last day of the month, in Prospect Heights, sunrise is at 7:07 am and sunset at 5:21 pm MST.

How long on average sun shines in January in Prospect Heights?

The average sunshine duration in January in Prospect Heights, Colorado, is 7.2h.

What is the month with the lowest UV index in Prospect Heights?

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

How high is the UV index in January in Prospect Heights?

In Prospect Heights, Colorado, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Prospect Heights, CO

Average temperature in January - Prospect Heights, CO
  • Average high temperature in January: 37°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in January: 19°F

The month with the highest average low temperature is July (55.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).

Average pressure in January
Prospect Heights, CO

Average pressure in January - Prospect Heights, CO
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).

Average wind speed in January
Prospect Heights, CO

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

The windiest months (with the highest average wind speed) are January, February and March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in January
Prospect Heights, CO

Average humidity in January - Prospect Heights, CO
  • Average humidity in January: 69%

The months with the highest relative humidity are January and February (69%).
The month with the lowest relative humidity is June (40%).

Average rainfall in January
Prospect Heights, CO

Average rainfall in January - Prospect Heights, CO
  • Average rainfall in January: 0.31"

The wettest month (with the highest rainfall) is July (2.2").
The driest months (with the least rainfall) are January and November (0.31").

Average rainfall days in January
Prospect Heights, CO

Average rainfall days in January - Prospect Heights, CO
  • Average rainfall days in January: 3.3 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (2.7 days).

Average snowfall in January
Prospect Heights, CO

Average snowfall in January - Prospect Heights, CO
  • Average snowfall in January: 2.28"

The month with the highest snowfall is February (5.63").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Prospect Heights, CO

Average snowfall days in January - Prospect Heights, CO
  • Average snowfall days in January: 6 days

The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Prospect Heights, CO

Average daylight in January / Average sunshine in January - Prospect Heights, 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 30min).

  • Average sunshine in January: 7h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).

Average sunshine days in January
Prospect Heights, CO

Average sunshine days in January - Prospect Heights, CO
  • Average sunshine days in January: 23.4 days

The month with the most sunshine days is November (24.7 days).
The month with the least sunshine days is July (4.7 days).

Average UV index in January
Prospect Heights, CO

Average UV index in January - Prospect Heights, CO
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

Average cloud cover in January
Prospect Heights, CO

Average cloud cover in January - Prospect Heights, CO
  • Average cloud cover in January: 21

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

Average visibility in January
Prospect Heights, CO

Average visibility in January - Prospect Heights, 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).

Prospect Heights, Colorado, USA

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