Hays
Montana, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Hays, MT

January, like December, is a freezing cold winter month in Hays, Montana, with average temperature ranging between min 11.8°F (-11.2°C) and max 25.7°F (-3.5°C). January and February, with an average high-temperature of 25.7°F (-3.5°C), are the coldest months. Weather in January »

February, the last month of the winter, in Hays, is another freezing cold month, with average temperature varying between 12°F (-11.1°C) and 25.7°F (-3.5°C). January and February, with an average high-temperature of 25.7°F (-3.5°C), are the coldest months. Weather in February »

March, the first month of the spring, in Hays, is a cold month, with average temperature fluctuating between 24.4°F (-4.2°C) and 38.8°F (3.8°C). In Hays, the average high-temperature in March rises, from a freezing cold 25.7°F (-3.5°C) in February, to a cold 38.8°F (3.8°C). Weather in March »

April in Hays, Montana, is a fresh spring month, with average temperature ranging between min 36.3°F (2.4°C) and max 52.9°F (11.6°C). In April, the average high-temperature increases, from a cold 38.8°F (3.8°C) in March, to a fresh 52.9°F (11.6°C). Weather in April »

The last month of the spring, May, is a comfortable month in Hays, Montana, with average temperature ranging between max 64.9°F (18.3°C) and min 46.4°F (8°C). In Hays, Montana, the average high-temperature in May increases, from a cool 52.9°F (11.6°C) in April, to an enjoyable 64.9°F (18.3°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Hays, Montana, with average temperature varying between 54.7°F (12.6°C) and 74.5°F (23.6°C). In June, the average high-temperature rises, from an enjoyable 64.9°F (18.3°C) in May, to a moderately hot 74.5°F (23.6°C). Weather in June »

July, like June, in Hays, Montana, is a moderately hot summer month, with average temperature ranging between max 83.5°F (28.6°C) and min 62.4°F (16.9°C). July is the warmest month, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 62.4°F (16.9°C). The average heat index is estimated at 83.5°F (28.6°C). Weather in July »

August, the last month of the summer, in Hays, is another warm month, with average temperature varying between 82.2°F (27.9°C) and 62.2°F (16.8°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 82.2°F (27.9°C). Weather in August »

September, the first month of the autumn, in Hays, is still a pleasant month, with temperature in the range of an average low of 53.4°F (11.9°C) and an average high of 70.9°F (21.6°C). In Hays, the average high-temperature drops, from a moderately hot 82.2°F (27.9°C) in August, to an agreeable 70.9°F (21.6°C). Weather in September »

October, like September, in Hays, Montana, is a cool autumn month, with average temperature fluctuating between 54.3°F (12.4°C) and 39.4°F (4.1°C). In October, the average high-temperature declines considerably, from a pleasant 70.9°F (21.6°C) in September, to a cool 54.3°F (12.4°C). Weather in October »

The last month of the autumn, November, is another cold month in Hays, Montana, with average temperature fluctuating between 39.6°F (4.2°C) and 26.4°F (-3.1°C). In Hays, Montana, the average high-temperature significantly decreases, from a fresh 54.3°F (12.4°C) in October, to a cold 39.6°F (4.2°C). Weather in November »

The first month of the winter, December, is also a subzero cold month in Hays, Montana, with temperature in the range of an average low of 13.8°F (-10.1°C) and an average high of 25.9°F (-3.4°C). In December, the average high-temperature decreases, from a cold 39.6°F (4.2°C) in November, to a freezing cold 25.9°F (-3.4°C). Weather in December »

What are the coldest months in Hays?

January and February, with an average high-temperature of 25.7°F (-3.5°C), are the coldest months.

What is the most humid month in Hays?

January is the most humid month, with an average relative humidity of 84%.

How many days does it rain in Hays?

Throughout the year, there are 103.3 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

When does it snow in Hays?

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

How many days does it snow in Hays?

In Hays, during the entire year, snow falls for 59.6 days, and aggregates up to 20.28" (515mm) of snow.

What is the driest month in Hays?

February and December are months with the least rain in Hays when the rain falls for 4.2 days and typically aggregates up to 0.55" (14mm) of rain.

What is the month with the least sunshine in Hays?

February has the least sunshine of the year in Hays, Montana, with an average of 4.8h of sunshine.

What is the rainiest month in Hays?

The wettest months are May and June, with an average 1.89" (48mm) of rainfall.

When it does not snow in Hays?

In Hays, Montana, snow does not fall in June through August.

When are the longest days in Hays?

The month with the longest days is June, with an average of 16h of daylight.

What is the warmest month in Hays?

The warmest month in Hays, Montana, is July, with an average high-temperature of 83.5°F (28.6°C) and an average low-temperature of 62.4°F (16.9°C).

What month has the most sunshine in Hays?

With an average of 11.8h of sunshine, July has the most sunshine of the year in Hays, Montana.

When is the highest UV index in Hays?

July is the month with the highest UV index in Hays, with an average maximum UV index of 7.

What is the least humid month in Hays?

The least humid month in Hays, Montana, is August, with an average relative humidity of 41%.

When does it snow the most in Hays?

The month with the most snowfall is December when snow falls for 12.7 days and typically aggregates up to 3.9" (99mm) of snow.

What is the month with the shortest days in Hays?

With an average of 8.5h of daylight, December has the shortest days of the year.

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

With an average maximum UV index of 1, December is the month with the lowest UV index.
Average temperature - Hays, MT
Average rainfall - Hays, MT

The wettest months (with the highest rainfall) are May and June (1.89").
The driest months (with the least rainfall) are February and December (0.55").

Average rainfall days - Hays, MT
Average snowfall days - Hays, MT

The month with the highest number of snowfall days is December (12.7 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Hays, MT

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.5h).

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).