Monthly weather forecast and climate
Garneill, MT

January, like December, is a freezing cold winter month in Garneill, Montana, with average temperature fluctuating between 31.1°F (-0.5°C) and 18°F (-7.8°C). In January, the average high-temperature is almost the same as in December - a still subzero cold 31.1°F (-0.5°C). Weather in January »

The last month of the winter, February, is another freezing cold month in Garneill, Montana, with average temperature fluctuating between 30.4°F (-0.9°C) and 16.3°F (-8.7°C). In February, the average high-temperature is practically the same as in January - a still subzero cold 30.4°F (-0.9°C). Weather in February »

The first month of the spring, March, is a wintry month in Garneill, Montana, with temperature in the range of an average high of 41°F (5°C) and an average low of 25.3°F (-3.7°C). In March, the average high-temperature increases, from a freezing cold 30.4°F (-0.9°C) in February, to a cold 41°F (5°C). Weather in March »

April in Garneill, Montana, is a chilly spring month, with average temperature ranging between max 49.3°F (9.6°C) and min 31.8°F (-0.1°C). In April, the average high-temperature marginally rises, from a cold 41°F (5°C) in March, to a chilly 49.3°F (9.6°C). Weather in April »

The last month of the spring, May, is a mild month in Garneill, Montana, with average temperature varying between 59.4°F (15.2°C) and 39.7°F (4.3°C). In May, the average high-temperature rises, from a chilly 49.3°F (9.6°C) in April, to a mild 59.4°F (15.2°C). Weather in May »

The first month of the summer, June, is a pleasant month in Garneill, Montana, with average temperature fluctuating between 70°F (21.1°C) and 47.7°F (8.7°C). In June, the average high-temperature increases, from a moderate 59.4°F (15.2°C) in May, to an agreeable 70°F (21.1°C). Weather in June »

July is a moderately hot summer month in Garneill, Montana, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 80.1°F (26.7°C). The warmest month is July, with an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 54.3°F (12.4°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Garneill, Montana, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 54.3°F (12.4°C). In August, the average high-temperature is practically the same as in July - a still warm 78.3°F (25.7°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Garneill, Montana, with average temperature varying between 68.5°F (20.3°C) and 47.1°F (8.4°C). In Garneill, the average high-temperature decreases, from a moderately hot 78.3°F (25.7°C) in August, to an agreeable 68.5°F (20.3°C). Weather in September »

October, like September, in Garneill, Montana, is a cool autumn month, with average temperature ranging between max 52.5°F (11.4°C) and min 34.9°F (1.6°C). In October, the average high-temperature plummets, from a pleasant 68.5°F (20.3°C) in September, to a fresh 52.5°F (11.4°C). Weather in October »

The last month of the autumn, November, is another cold month in Garneill, Montana, with average temperature fluctuating between 25.2°F (-3.8°C) and 39.6°F (4.2°C). In Garneill, the average high-temperature drops, from a fresh 52.5°F (11.4°C) in October, to a cold 39.6°F (4.2°C). Weather in November »

December, the first month of the winter, in Garneill, is still a freezing cold month, with average temperature ranging between min 16.7°F (-8.5°C) and max 29.3°F (-1.5°C). The coldest month is December, with an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 16.7°F (-8.5°C). Weather in December »

What is the most humid month in Garneill?

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

How much does it rain in Garneill?

Throughout the year, in Garneill, there are 128.6 rainfall days, and 12.8" (325mm) of precipitation is accumulated.

When does it snow in Garneill?

January through May, September through December are months with snowfall in Garneill.

How many days does it snow in Garneill?

In Garneill, during the entire year, snow falls for 72.8 days, and aggregates up to 33.5" (851mm) of snow.

When is the lowest UV index in Garneill?

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

What is the month with the least sunshine in Garneill?

With an average of 6.4h of sunshine, February has the least sunshine of the year in Garneill, Montana.

What is the snowiest month in Garneill?

April is the month with the most snowfall in Garneill. Snow falls for 8.6 days and accumulates 6.61" (168mm) of snow.

What is the wettest month in Garneill?

The month with the most rainfall is May when the rain falls for 18.7 days and typically aggregates up to 2.4" (61mm) of precipitation.

When it does not snow in Garneill?

June through August are months without snowfall in Garneill, Montana.

When are the longest days in Garneill?

The month with the longest days in Garneill is June, with an average of 15.8h of daylight.

What is the warmest month in Garneill?

With an average high-temperature of 80.1°F (26.7°C) and an average low-temperature of 54.3°F (12.4°C), July is the warmest month in Garneill, Montana.

What month has the most sunshine in Garneill?

July has the most sunshine of the year, with an average of 11.8h of sunshine.

What is the month with the highest UV index in Garneill?

July is the month with the highest UV index in Garneill, Montana, with an average maximum UV index of 6.

What is the least humid month in Garneill?

The least humid month in Garneill is August, with an average relative humidity of 45%.

What is the coldest month in Garneill?

The coldest month is December, with an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 16.7°F (-8.5°C).

What is the driest month in Garneill?

The month with the least rainfall in Garneill is December when the rain falls for 7.2 days and typically collects 0.47" (12mm) of precipitation.

What is the month with the shortest days in Garneill?

The month with the shortest days in Garneill, Montana, is December, with an average of 8.6h of daylight.
Average temperature - Garneill, MT
Average pressure - Garneill, MT

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

Average wind speed - Garneill, MT

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 rainfall - Garneill, MT
Average rainfall days - Garneill, MT

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

Average snowfall - Garneill, MT
Average snowfall days - Garneill, MT

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

Average daylight / Average sunshine - Garneill, MT

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.4h).

Average sunshine days - Garneill, MT
Average UV index - Garneill, MT
Average visibility - Garneill, MT

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).