January weather forecast
Ennis, MT

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Weather in January

The beginning of the year in Ennis, Montana witnesses a drop in temperatures, turning the crisp winter air even colder after the holiday season. With temperatures ranging from 9.7°F (-12.4°C) to 24.6°F (-4.1°C), January marks one of the coldest periods, creating a chilly winter wonderland. Snowfall is frequent and abundant, with the city blanketed with 6.69" (170mm) of snow that falls over 15.5 days on average. The frosted landscape lends a peaceful and tranquil atmosphere to the city, making it a picturesque time for those fond of colder climates and winter scenery. While outdoor activities might be reduced, it is the perfect time for indoor pursuits and staying cozy.

Temperature

January's onset brings an average high-temperature of a still subzero cold 24.6°F (-4.1°C), showing a minute difference from December's 22.3°F (-5.4°C). January's nights in Ennis observe an average temperature of 9.7°F (-12.4°C).

Humidity

In January, the average relative humidity is 89%.

Rainfall

In Ennis, in January, during 3.3 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Ennis, during the entire year, the rain falls for 105.7 days and collects up to 17.99" (457mm) of precipitation.

Snowfall

January through December are months with snowfall. In Ennis, Montana, during January, snow falls for 15.5 days and regularly aggregates up to 6.69" (170mm) of snow. In Ennis, Montana, during the entire year, snow falls for 136.1 days and aggregates up to 86.93" (2208mm) of snow.

Daylight

In January, the average length of the day is 9h and 13min.
On the first day of the month, sunrise is at 8:06 am and sunset at 4:54 pm. On the last day of January, sunrise is at 7:48 am and sunset at 5:31 pm MST.

Sunshine

January has the least sunshine of the year, with an average of 4.7h of sunshine.

UV index

January and February, with an average maximum UV index of 1, are months with the lowest UV index in Ennis. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the average maximum UV index of 1 translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Enhance your sun protection with tightly woven, yet airy clothing. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Ennis in January?

The average high-temperature and low-temperature in Ennis during January are 24.6°F (-4.1°C) and 9.7°F (-12.4°C) respectively.

What is the average humidity in January in Ennis?

In January, the average relative humidity in Ennis, Montana, is 89%.

How many days does it rain in January in Ennis?

In Ennis, during January, the rain falls for 3.3 days and regularly aggregates up to 0.79" (20mm) of precipitation.

How many days does it snow in January in Ennis?

In January, in Ennis, Montana, it is snowing for 15.5 days. Throughout January, 6.69" (170mm) of snow is accumulated.

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

In January, the average day length is 9h and 13min.

When are sunrise and sunset in January in Ennis?

In January, on the first day of the month, sunrise is at 8:06 am and sunset at 4:54 pm. On the last day of the month, in Ennis, sunrise is at 7:48 am and sunset at 5:31 pm MST.

What is the month with the least sunshine in Ennis?

With an average of 4.7h of sunshine, January has the least sunshine of the year in Ennis.

How many hours of sunshine does Ennis have in January?

In Ennis, the average sunshine duration in January is 4.7h.

What are the months with the lowest UV index in Ennis?

The months with the lowest UV index in Ennis are January and February, with an average maximum UV index of 1.

What is the UV index reading in January in Ennis?

The average daily maximum UV index in January in Ennis is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
22.3°F -5.4°C
24.6°F -4.1°C
25.2°F -3.8°C
Average low temperature
7.7°F -13.5°C
9.7°F -12.4°C
9.7°F -12.4°C
Average pressure
30.21" 767mmHg
30.22" 768mmHg
30.14" 766mmHg
Average wind speed
7mph 11.3km/h
7.1mph 11.4km/h
6.5mph 10.5km/h
Average max. wind speed
7.4mph 11.9km/h
7.5mph 12.1km/h
7mph 11.3km/h
Average wind speed gusts
12.4mph 20km/h
12.8mph 20.6km/h
10.9mph 17.5km/h
Average humidity
89%
89%
90%
Average rainfall
0.75" 19mm
0.79" 20mm
1.34" 34mm
Average rainfall days
4.7
3.3
4.5
Average snowfall
6.3" 160mm
6.69" 170mm
11.38" 289mm
Average snowfall days
15.5
15.5
17.8
Average daylight
8h 5min
9h 1min
10h 2min
Average sunshine
4h 5min
4h 4min
4h 5min
Average sunshine days
16
16.3
10.6
Average UV index
2
1
1
Average cloud cover
55%
55%
60%
Average visibility
4mi 6.4km
4mi 6.4km
4mi 6.4km

Average temperature in January
Ennis, MT

Average temperature in January - Ennis, MT
  • Average high temperature in January: 24.6°F

The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is December (22.3°F).

  • Average low temperature in January: 9.7°F

The month with the highest average low temperature is August (46°F).
The coldest month (with the lowest average low temperature) is December (7.7°F).

Average pressure in January
Ennis, MT

Average pressure in January - Ennis, MT
  • Average pressure in January: 30.22"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Ennis, MT

Average wind speed in January - Ennis, MT
  • Average wind speed in January: 7.1mph

The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in January
Ennis, MT

Average humidity in January - Ennis, MT
  • Average humidity in January: 89%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is August (50%).

Average rainfall in January
Ennis, MT

Average rainfall in January - Ennis, MT
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is December (0.75").

Average rainfall days in January
Ennis, MT

Average rainfall days in January - Ennis, MT
  • Average rainfall days in January: 3.3 days

The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is November (2.9 days).

Average snowfall in January
Ennis, MT

Average snowfall in January - Ennis, MT
  • Average snowfall in January: 6.69"

The month with the highest snowfall is April (14.76").
The month with the least snowfall is August (0.08").

Average snowfall days in January
Ennis, MT

Average snowfall days in January - Ennis, MT
  • Average snowfall days in January: 15.5 days

The month with the highest number of snowfall days is April (19.9 days).
The month with the least snowfall days is August (0.3 days).

Average daylight in January /
Average sunshine in January
Ennis, MT

Average daylight in January / Average sunshine in January - Ennis, MT
  • Average daylight in January: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in January: 4h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in January
Ennis, MT

Average sunshine days in January - Ennis, MT
  • Average sunshine days in January: 16.3 days

The month with the most sunshine days is January (16.3 days).
The month with the least sunshine days is April (6.9 days).

Average UV index in January
Ennis, MT

Average UV index in January - Ennis, MT
  • Average UV index in January: 1

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).

Average cloud cover in January
Ennis, MT

Average cloud cover in January - Ennis, MT
  • Average cloud cover in January: 55

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in January
Ennis, MT

Average visibility in January - Ennis, MT
  • Average visibility in January: 4mi

The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

Ennis, Montana, USA

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