January weather forecast
Eureka, MT

Weather in January

January, the same as December, in Eureka, Montana, is another subzero cold winter month, with average temperature ranging between min 14.2°F (-9.9°C) and max 27.3°F (-2.6°C).

Temperature

In January, the average high-temperature is relatively the same as in December - a still subzero cold 27.3°F (-2.6°C). In January, the average low-temperature is 14.2°F (-9.9°C).

Humidity

With an average relative humidity of 95%, January is the most humid month.

Rainfall

In Eureka, in January, it is raining for 8.3 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 136.3 rainfall days, and 15.35" (390mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Eureka are January through May, September through December. In Eureka, during 21.2 snowfall days, 9.37" (238mm) of snow is typically accumulated. In Eureka, during the entire year, snow falls for 110.7 days, and aggregates up to 46.81" (1189mm) of snow.

Daylight

In Eureka, the average length of the day is 8.8h.

Sunshine

January has the least sunshine of the year, with an average of 3.1h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 1 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the most humid month in Eureka?

With an average relative humidity of 95%, January is the most humid month.

What is the average humidity in January in Eureka?

The average relative humidity in January in Eureka is 95%.

How many days does it rain in January in Eureka?

In Eureka, in January, during 8.3 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

How many days does it snow in January in Eureka?

In Eureka, in January, snow falls for 21.2 days, with typically accumulated 9.37" (238mm) of snow.

How many hours of daylight does Eureka have in January?

In Eureka, Montana, the average length of the day in January is 8.8h.

What is the month with the least sunshine in Eureka?

The month with the least sunshine in Eureka is January, with an average of 3.1h of sunshine.

How many hours of sunshine does Eureka have in January?

In Eureka, Montana, the average sunshine in January is 3.1h.

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

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in January in Eureka?

The average daily maximum UV index in January in Eureka, Montana, is 1. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.

Average temperature in January
Eureka, MT

Average temperature in January - Eureka, MT
  • Average high temperature in January: 27.3°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).

  • Average low temperature in January: 14.2°F

The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

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Average pressure in January
Eureka, MT

Average pressure in January - Eureka, MT
  • Average pressure in January: 30.17"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in January
Eureka, MT

Average wind speed in January - Eureka, MT
  • Average wind speed in January: 3.5mph

The windiest month (with the highest average wind speed) is June (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

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Average humidity in January
Eureka, MT

Average humidity in January - Eureka, MT
  • Average humidity in January: 95%

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in January
Eureka, MT

Average rainfall in January - Eureka, MT
  • Average rainfall in January: 1.46"

The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is August (0.39").

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Average rainfall days in January
Eureka, MT

Average rainfall days in January - Eureka, MT
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is August (6.1 days).

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Average snowfall in January
Eureka, MT

Average snowfall in January - Eureka, MT
  • Average snowfall in January: 9.37"

The month with the highest snowfall is February (10").
Months with the least snowfall are June, July and August (0").

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Average snowfall days in January
Eureka, MT

Average snowfall days in January - Eureka, MT
  • Average snowfall days in January: 21.2 days

The month with the highest number of snowfall days is December (22.1 days).
Months with the least snowfall days are June, July and August (0 days).

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

Average daylight in January / Average sunshine in January - Eureka, MT
  • Average daylight in January: 8.8h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.3h).

  • Average sunshine in January: 3.1h

The month with the most sunshine is August (Average sunshine: 11.7h).
The month with the least sunshine is January (Average sunshine: 3.1h).

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Average sunshine days in January
Eureka, MT

Average sunshine days in January - Eureka, MT
  • Average sunshine days in January: 9 days

The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (6.3 days).

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Average UV index in January
Eureka, MT

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

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in January
Eureka, MT

Average cloud cover in January - Eureka, MT
  • Average cloud cover in January: 70

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).

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Average visibility in January
Eureka, MT

Average visibility in January - Eureka, MT
  • Average visibility in January: 2mi

Months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

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