Climate and monthly weather forecast
Big Horn, WY

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Weather in January

January, like December, is a freezing cold winter month in Big Horn, Wyoming, with an average temperature fluctuating between 30.4°F (-0.9°C) and 15.6°F (-9.1°C). As December turns into January, the average high-temperatures rest at a still freezing cold 30.4°F (-0.9°C), showing a minor variation from the prior month. Weather in January »

Weather in February

February, the last month of the winter in Big Horn, is also a subzero cold month, with temperature in the range of an average low of 14.4°F (-9.8°C) and an average high of 29.1°F (-1.6°C). Big Horn experiences its lowest temperatures in February, with an average peak of 29.1°F (-1.6°C) and a low of 14.4°F (-9.8°C). Weather in February »

Weather in March

March, the first month of the spring in Big Horn, is an icy month, with temperature in the range of an average high of 40.6°F (4.8°C) and an average low of 25.3°F (-3.7°C). As March sets, the average high-temperature shows an increase, moving up from a subzero cold 29.1°F (-1.6°C) in February to a wintry 40.6°F (4.8°C). Weather in March »

Weather in April

April in Big Horn, Wyoming, is a frosty spring month, with an average temperature varying between 30.4°F (-0.9°C) and 47.1°F (8.4°C). As Big Horn welcomes April, the average high-temperature sees a modest rise, transitioning from an icy 40.6°F (4.8°C) in March to a frosty 47.1°F (8.4°C). Weather in April »

Weather in May

May, the last month of the spring in Big Horn, is a moderate month, with temperature in the range of an average low of 39.4°F (4.1°C) and an average high of 57.2°F (14°C). The beginning of May signals a rise in the average high-temperature, moving from a frosty 47.1°F (8.4°C) in April to a mild 57.2°F (14°C). Weather in May »

Weather in June

June, the first month of the summer in Big Horn, is an agreeable month, with an average temperature ranging between max 69.4°F (20.8°C) and min 49.3°F (9.6°C). June sees a rise in the average high-temperature, climbing from a moderate 57.2°F (14°C) in May to a pleasant 69.4°F (20.8°C). Weather in June »

Weather in July

July in Big Horn, Wyoming, is a moderately hot summer month, with an average temperature fluctuating between 78.8°F (26°C) and 57°F (13.9°C). The warmest month is July, with an average high-temperature of 78.8°F (26°C) and an average low-temperature of 57°F (13.9°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Big Horn, Wyoming, with an average temperature ranging between max 77.4°F (25.2°C) and min 56.1°F (13.4°C). Big Horn experiences an average high-temperature of a still warm 77.4°F (25.2°C) in August, marking an insignificant shift from 78.8°F (26°C) in July. Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Big Horn, Wyoming, with an average temperature ranging between min 48.7°F (9.3°C) and max 68.7°F (20.4°C). With the onset of September, Big Horn experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 77.4°F (25.2°C) in August to a pleasant 68.7°F (20.4°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Big Horn, Wyoming, with an average temperature varying between 35.2°F (1.8°C) and 52.2°F (11.2°C). A clear reduction in the average high-temperature marks the arrival of October, falling from an agreeable 68.7°F (20.4°C) in September to a cool 52.2°F (11.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Big Horn, is also an icy month, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 24.4°F (-4.2°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's fresh 52.2°F (11.2°C) to an icy 39.7°F (4.3°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Big Horn, Wyoming, with an average temperature varying between 15.3°F (-9.3°C) and 29.3°F (-1.5°C). Big Horn's December weather shows a moderate shift in high-temperatures, falling from November's wintry 39.7°F (4.3°C) to a subzero cold 29.3°F (-1.5°C). Weather in December »
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Frequently asked questions

How many days does it rain in Big Horn?

In Big Horn, during the entire year, the rain falls for 165.2 days and collects up to 21.22" (539mm) of precipitation.

When does it snow in Big Horn?

Months with snowfall in Big Horn, Wyoming, are January through May, September through December.

How much does it snow in Big Horn?

In Big Horn, during the entire year, snow falls for 78.9 days and aggregates up to 46.3" (1176mm) of snow.

What are the months with the lowest UV index in Big Horn?

The months with the lowest UV index in Big Horn are January through April, October through December, with an average maximum UV index of 2.

What time of the year is the coldest in Big Horn?

In Big Horn, February is the month with the lowest recorded average temperatures, measuring a high of 29.1°F (-1.6°C) and a low of 14.4°F (-9.8°C).

What is the most humid month in Big Horn?

February is the most humid month, with an average relative humidity of 79%.

What is the month with the least sunshine in Big Horn?

February has the least sunshine of the year, with an average of 6.1h of sunshine.

When is Daylight Saving Time (DST) in Big Horn?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Big Horn, Wyoming, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the snowiest month in Big Horn?

The month with the most snowfall in Big Horn is April, when snow falls for 8.6 days and typically aggregates up to 8.7" (221mm) of snow.

What is the rainiest month in Big Horn?

The month with the most rainfall in Big Horn is May, when the rain falls for 22.3 days and typically aggregates up to 3.43" (87mm) of precipitation.

When it does not snow in Big Horn?

June through August are months without snowfall in Big Horn.

When are the longest days in Big Horn?

June has the longest days of the year in Big Horn, with an average of 15h and 30min of daylight.

What time of the year is the hottest in Big Horn?

July, on average, is the warmest month, registering a high temperature of 78.8°F (26°C) and a low of 57°F (13.9°C).

What month has the most sunshine in Big Horn?

The month with the most sunshine in Big Horn is July, with an average of 11.9h of sunshine.

When is the highest UV index in Big Horn?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the least humid month in Big Horn?

With an average relative humidity of 46%, August is the least humid month in Big Horn.

What is the driest month in Big Horn?

The month with the least rainfall in Big Horn, Wyoming, is December, when the rain falls for 7.8 days and typically collects 0.75" (19mm) of precipitation.

What is the month with the shortest days in Big Horn?

December has the shortest days of the year in Big Horn, Wyoming, with an average of 8h and 54min of daylight.

Average temperature
Big Horn, WY

Average temperature - Big Horn, WY

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure
Big Horn, WY

Average pressure - Big Horn, WY

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed
Big Horn, WY

Average wind speed - Big Horn, WY

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average rainfall
Big Horn, WY

Average rainfall - Big Horn, WY

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").

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Average rainfall days
Big Horn, WY

Average rainfall days - Big Horn, WY

The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall
Big Horn, WY

Average snowfall - Big Horn, WY

The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Big Horn, WY

Average snowfall days - Big Horn, WY

The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Big Horn, WY

Average daylight / Average sunshine - Big Horn, WY

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).

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Average sunshine days
Big Horn, WY

Average sunshine days - Big Horn, WY

The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).

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Average UV index
Big Horn, WY

Average UV index - Big Horn, WY

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

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Average visibility
Big Horn, WY

Average visibility - Big Horn, WY

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

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Big Horn, Wyoming, USA

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