January weather forecast and climate
Roberts, MT

January is a cold winter month in Roberts, Montana, with temperature in the range of an average low of 18.7°F (-7.4°C) and an average high of 32°F (0°C).

Temperature

In Roberts, the average high-temperature is practically the same as in December - a cold 32°F (0°C). The average low-temperature, in Roberts, Montana, is 18.7°F (-7.4°C).

Humidity

The most humid month is January, with an average relative humidity of 76%.

Rainfall

The month with the least rainfall is January when the rain falls for 6 days and typically collects 0.51" (13mm) of precipitation.

Snowfall

January through June, September through December are months with snowfall in Roberts. In Roberts, snow falls for 9.9 days, with typically accumulated 3.58" (91mm) of snow. Throughout the year, there are 61.5 snowfall days, and 41.77" (1061mm) of snow is accumulated.

Daylight

In Roberts, the average length of the day is 9.2h.

Sunshine

In Roberts, Montana, the average sunshine in January is 6.4h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 transform into the following instructions:
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. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in January in Roberts?

The average high-temperature, in January, in Roberts, is 32°F (0°C), while the average low-temperature is 18.7°F (-7.4°C).

What is the most humid month in Roberts?

With an average relative humidity of 76%, January is the most humid month in Roberts.

What is the average humidity in January in Roberts?

The average relative humidity in January in Roberts, Montana, is 76%.

How many days does it rain in January in Roberts?

In January, in Roberts, the rain falls for 6 days. Throughout January, 0.51" (13mm) of precipitation is accumulated.

What is the driest month in Roberts?

January is the month with the least rainfall. Rain falls for 6 days and accumulates 0.51" (13mm) of precipitation.

How many days does it snow in January in Roberts?

In Roberts, Montana, in January, snow falls for 9.9 days, with typically accumulated 3.58" (91mm) of snow.

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

The average length of the day in January is 9.2h.

How long on average sun shines in January in Roberts?

The average sunshine in January in Roberts is 6.4h.

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

Months with the lowest UV index in Roberts are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January in Roberts?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in January - Roberts, MT
  • Average high temperature in January: 0°C

The warmest month (with the highest average high temperature) is July (28.3°C).
The month with the lowest average high temperature is December (-0.7°C).

  • Average low temperature in January: -7.4°C

Months with the highest average low temperature are July and August (14°C).
The coldest month (with the lowest average low temperature) is February (-8.5°C).

Average pressure in January - Roberts, MT
  • Average pressure in January: 1021.1mbar

The month with the highest atmospheric pressure is January (1021.1mbar).
The month with the lowest atmospheric pressure is June (1011.9mbar).

Average wind speed in January - Roberts, MT
  • Average wind speed in January: 14km/h

The windiest month (with the highest average wind speed) is January (14km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).

Average humidity in January - Roberts, MT
  • Average humidity in January: 76%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).

Average rainfall in January - Roberts, MT
  • Average rainfall in January: 13mm

The wettest month (with the highest rainfall) is May (53mm).
The driest month (with the least rainfall) is January (13mm).

Average rainfall days in January - Roberts, MT
  • Average rainfall days in January: 6 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4 days).

Average snowfall in January - Roberts, MT
  • Average snowfall in January: 91mm

The month with the highest snowfall is February (173mm).
Months with the least snowfall are July and August (0mm).

Average snowfall days in January - Roberts, MT
  • Average snowfall days in January: 9.9 days

The month with the highest number of snowfall days is February (10.8 days).
Months with the least snowfall days are July and August (0 days).

Average daylight in January / Average sunshine in January - Roberts, MT
  • Average daylight in January: 9.2h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in January: 6.4h

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 6.2h).

Average sunshine days in January - Roberts, MT
  • Average sunshine days in January: 19.3 days

The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.5 days).

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

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

Average cloud cover in January - Roberts, MT
  • Average cloud cover in January: 32

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

Average visibility in January - Roberts, MT
  • Average visibility in January: 9km

Months with the highest visibility are June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March, April, May, November and December (9km).