Monthly weather forecast and climate
Eureka, MT

January, like December, is another subzero cold winter month in Eureka, Montana, with average temperature fluctuating between 15.1°F (-9.4°C) and 30°F (-1.1°C). The coldest month is January, with an average high-temperature of 30°F (-1.1°C) and an average low-temperature of 15.1°F (-9.4°C). Weather in January »
February, the last month of the winter, in Eureka, is a cold month, with average temperature fluctuating between 37.9°F (3.3°C) and 19.9°F (-6.7°C). In February, the average high-temperature is 37.9°F (3.3°C), and the average low-temperature is 19.9°F (-6.7°C). Weather in February »

The first month of the spring, March, is a chilly month in Eureka, Montana, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 48.9°F (9.4°C). In March, the average high-temperature is 48.9°F (9.4°C), and the average low-temperature is 27°F (-2.8°C). Weather in March »

April in Eureka, Montana, is a mild spring month, with average temperature fluctuating between 60.1°F (15.6°C) and 33.1°F (0.6°C). In Eureka, in April, the average high-temperature is 60.1°F (15.6°C), and the average low-temperature is 33.1°F (0.6°C). Weather in April »

The last month of the spring, May, is a pleasant month in Eureka, Montana, with temperature in the range of an average low of 39.9°F (4.4°C) and an average high of 69.1°F (20.6°C). In May, the average high-temperature is 69.1°F (20.6°C), and the average low-temperature is 39.9°F (4.4°C). Weather in May »

The first month of the summer, June, is a warm month in Eureka, Montana, with average temperature varying between 46.9°F (8.3°C) and 75.9°F (24.4°C). In Eureka, Montana, the average high-temperature is 75.9°F (24.4°C), and the average low-temperature is 46.9°F (8.3°C). Weather in June »

July, like June, in Eureka, Montana, is a warm summer month, with average temperature ranging between max. 84°F (28.9°C) and min. 50°F (10°C). Warmest months are July and August, with an average high-temperature of 84°F (28.9°C). Weather in July »

August, the last month of the summer, in Eureka, is also a warm month, with average temperature varying between 84°F (28.9°C) and 48.9°F (9.4°C). July and August, with an average high-temperature of 84°F (28.9°C), are warmest months. Weather in August »

The first month of the autumn, September, is also a pleasant month in Eureka, Montana, with average temperature varying between 73°F (22.8°C) and 41°F (5°C). The average high-temperature, is 73°F (22.8°C), while the average low-temperature is 41°F (5°C). Weather in September »

October, the same as September, in Eureka, Montana, is a mild autumn month, with average temperature varying between 57.9°F (14.4°C) and 33.1°F (0.6°C). In October, the average high-temperature is 57.9°F (14.4°C), and the average low-temperature is 33.1°F (0.6°C). Weather in October »

November, the last month of the autumn, in Eureka, is another cold month, with average temperature ranging between min. 26.1°F (-3.3°C) and max. 39.9°F (4.4°C). In November, the average high-temperature is 39.9°F (4.4°C), and the average low-temperature is 26.1°F (-3.3°C). Weather in November »

The first month of the winter, December, is still a freezing cold month in Eureka, Montana, with average temperature fluctuating between 30.9°F (-0.6°C) and 18°F (-7.8°C). In Eureka, in December, the average high-temperature is 30.9°F (-0.6°C), and the average low-temperature is 18°F (-7.8°C). Weather in December »

What is the coldest month in Eureka?

January is the coldest month in Eureka, Montana, with an average high-temperature of 30°F (-1.1°C) and an average low-temperature of 15.1°F (-9.4°C).

How much does it rain in Eureka?

During the entire year, Eureka aggregates up to 14.8" (376.1mm) of precipitation.

What is the driest month in Eureka?

Months with the least rainfall in Eureka, Montana, are February and March with 0.8" (20.1mm) of accumulated rain.

What is the wettest month in Eureka?

The month with the most rainfall is June when 2.1" (53.1mm) of precipitation is typically aggregated.

When are the longest days in Eureka?

June has the longest days of the year in Eureka, Montana, with an average of 16.1h of daylight.

What is the warmest month in Eureka?

Warmest months in Eureka are July and August, with an average high-temperature of 84°F (28.9°C).

What month has the most sunshine in Eureka?

With an average of 12h of sunshine, July has the most sunshine of the year in Eureka.

What is the month with the shortest days in Eureka?

December has the shortest days of the year, with an average of 8.3h of daylight.

What is the month with the least sunshine in Eureka?

The month with the least sunshine is December, with an average of 1.3h of sunshine.
Average rainfall - Eureka, MT
Average daylight / Average sunshine - Eureka, MT
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