January weather forecast
Harlowton, MT

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Weather in January

January, the same as December, in Harlowton, Montana, is a freezing cold winter month, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 31.1°F (-0.5°C).

Temperature

The average high-temperature during January is a still freezing cold 31.1°F (-0.5°C), almost matching the conditions of the preceding month. The nighttime temperature dips to a still freezing cold 18°F (-7.8°C) on average during January.

Humidity

The most humid month in Harlowton, Montana, is January, with an average relative humidity of 78%.

Rainfall

In Harlowton, Montana, in January, during 7.2 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Harlowton, during the entire year, the rain falls for 128.6 days and collects up to 12.8" (325mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Harlowton. In Harlowton, during January, snow falls for 11.9 days and regularly aggregates up to 3.98" (101mm) of snow. In Harlowton, Montana, during the entire year, snow falls for 72.8 days and aggregates up to 33.5" (851mm) of snow.

Daylight

In January, the average length of the day in Harlowton is 9h and 5min.
On the first day of the month, sunrise is at 8:02 am and sunset at 4:42 pm. On the last day of January, in Harlowton, Montana, sunrise is at 7:43 am and sunset at 5:21 pm MST.

Sunshine

In Harlowton, the average sunshine in January is 6.5h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 2 during January translates into the following directions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Harlowton in January?

January temperatures in Harlowton, Montana, vary between a high-temperature of 31.1°F (-0.5°C) and a low-temperature of 18°F (-7.8°C).

What is the most humid month in Harlowton?

With an average relative humidity of 78%, January is the most humid month.

What is the average humidity in January in Harlowton?

In January, the average relative humidity in Harlowton, Montana, is 78%.

How much does it rain in Harlowton in January?

In Harlowton, Montana, during January, the rain falls for 7.2 days and regularly aggregates up to 0.51" (13mm) of precipitation.

How much does it snow in Harlowton in January?

In Harlowton, Montana, in January, snow falls for 11.9 days, with typically accumulated 3.98" (101mm) of snow.

How many hours of daylight does Harlowton have in January?

In Harlowton, Montana, the average day length in January is 9h and 5min.

What time are sunrise and sunset in January in Harlowton?

On the first day of January in Harlowton, Montana, sunrise is at 8:02 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:21 pm MST.

How long on average sun shines in January in Harlowton?

The average sunshine duration in January in Harlowton is 6.5h.

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

January through March, 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 Harlowton?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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
Harlowton, MT

Average temperature in January - Harlowton, MT
  • Average high temperature in January: 31.1°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is December (29.3°F).

  • Average low temperature in January: 18°F

The months with the highest average low temperature are July and August (54.3°F).
The coldest month (with the lowest average low temperature) is February (16.3°F).

Average pressure in January
Harlowton, MT

Average pressure in January - Harlowton, MT
  • Average pressure in January: 30.14"Hg

The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in January
Harlowton, MT

Average wind speed in January - Harlowton, MT
  • Average wind speed in January: 10.9mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in January
Harlowton, MT

Average humidity in January - Harlowton, MT
  • Average humidity in January: 78%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (45%).

Average rainfall in January
Harlowton, MT

Average rainfall in January - Harlowton, MT
  • Average rainfall in January: 0.51"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is December (0.47").

Average rainfall days in January
Harlowton, MT

Average rainfall days in January - Harlowton, MT
  • Average rainfall days in January: 7.2 days

The month with the highest number of rainy days is May (18.7 days).
The months with the least rainy days are January and December (7.2 days).

Average snowfall in January
Harlowton, MT

Average snowfall in January - Harlowton, MT
  • Average snowfall in January: 3.98"

The month with the highest snowfall is April (6.61").
The months with the least snowfall are June, July and August (0").

Average snowfall days in January
Harlowton, MT

Average snowfall days in January - Harlowton, MT
  • Average snowfall days in January: 11.9 days

The month with the highest number of snowfall days is February (14.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in January: 6h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 24min).

Average sunshine days in January
Harlowton, MT

Average sunshine days in January - Harlowton, MT
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is April (9 days).

Average UV index in January
Harlowton, MT

Average UV index in January - Harlowton, MT
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in January
Harlowton, MT

Average cloud cover in January - Harlowton, MT
  • Average cloud cover in January: 33

The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in January
Harlowton, MT

Average visibility in January - Harlowton, MT
  • 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).

Harlowton, Montana, USA

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