Climate and monthly weather forecast
Three River Junction, WY

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Weather in January

January, like December, is a freezing cold winter month in Three River Junction, Wyoming, with an average temperature fluctuating between 5.4°F (-14.8°C) and 21°F (-6.1°C). The start of January marks an average high-temperature of a still freezing cold 21°F (-6.1°C), hardly distinguishable from the conditions in December. Weather in January »

Weather in February

February, the last month of the winter in Three River Junction, is another freezing cold month, with temperature in the range of an average low of 6.3°F (-14.3°C) and an average high of 22.3°F (-5.4°C). With the advent of February, Three River Junction's high-temperatures adjust to a still subzero cold 22.3°F (-5.4°C), closely aligning with the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Three River Junction, is still a freezing cold month, with temperature in the range of an average high of 29.1°F (-1.6°C) and an average low of 13.5°F (-10.3°C). The shift into March is characterized by a subtle rise in the average high-temperature, transitioning from February's 22.3°F (-5.4°C) to a still freezing cold 29.1°F (-1.6°C). Weather in March »

Weather in April

April in Three River Junction, Wyoming, is a wintry spring month, with an average temperature ranging between max 35.6°F (2°C) and min 18.3°F (-7.6°C). With the start of April, the average high-temperature marginally shifts from March's freezing cold 29.1°F (-1.6°C) to a wintry 35.6°F (2°C). Weather in April »

Weather in May

May, the last month of the spring in Three River Junction, is a frosty month, with an average temperature varying between 28°F (-2.2°C) and 48.4°F (9.1°C). As May arrives, Three River Junction's weather shows an increase in high-temperatures, moving from April's cold 35.6°F (2°C) to a frosty 48.4°F (9.1°C). Weather in May »

Weather in June

June, the first month of the summer in Three River Junction, is a comfortable month, with an average temperature ranging between max 61°F (16.1°C) and min 37°F (2.8°C). The shift from May to June sees an increase in the average high-temperature, transitioning from a chilly 48.4°F (9.1°C) to a refreshing 61°F (16.1°C). Weather in June »

Weather in July

July is a pleasant summer month in Three River Junction, Wyoming, with an average temperature ranging between min 43.7°F (6.5°C) and max 72.1°F (22.3°C). Three River Junction records the warmest temperatures in July, averaging a high of 72.1°F (22.3°C) and a low of 43.7°F (6.5°C). Weather in July »

Weather in August

The last month of the summer, August, is another pleasant month in Three River Junction, Wyoming, with temperature in the range of an average low of 43.3°F (6.3°C) and an average high of 70.7°F (21.5°C). August brings an average high-temperature of a still agreeable 70.7°F (21.5°C), showing a slight difference from July's 72.1°F (22.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Three River Junction, Wyoming, with an average temperature varying between 61.2°F (16.2°C) and 37.2°F (2.9°C). The arrival of September indicates a decrease in the average high-temperature, moving from an agreeable 70.7°F (21.5°C) in August to an enjoyable 61.2°F (16.2°C). Weather in September »

Weather in October

October, like September, is another chilly autumn month in Three River Junction, Wyoming, with an average temperature fluctuating between 25°F (-3.9°C) and 43°F (6.1°C). As Three River Junction transitions into October, the average high-temperature shows a marked reduction, decreasing from an enjoyable 61.2°F (16.2°C) in September to a frosty 43°F (6.1°C). Weather in October »

Weather in November

The last month of the autumn, November, is another freezing cold month in Three River Junction, Wyoming, with an average temperature varying between 13.5°F (-10.3°C) and 29.1°F (-1.6°C). The shift from October to November corresponds with a decrease in the average high-temperature, down to a subzero cold 29.1°F (-1.6°C) from a chilly 43°F (6.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Three River Junction, Wyoming, with an average temperature varying between 19.4°F (-7°C) and 3.9°F (-15.6°C). The coldest period is December, when temperatures fluctuate between an average high of 19.4°F (-7°C) and a low of 3.9°F (-15.6°C). Weather in December »
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How much does it rain?

In Three River Junction, during the entire year, the rain falls for 94.6 days and collects up to 24.41" (620mm) of precipitation.

When does it snow?

Months with snowfall are January through December.

How many days does it snow?

Throughout the year, there are 176.8 snowfall days, and 135.55" (3443mm) of snow is accumulated.

What is the month with the lowest UV index?

January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the most humid month?

The most humid month is February, with an average relative humidity of 94%.

What is the month with the least sunshine in Three River Junction?

The months with the least sunshine are February and December, with an average of 3.3h of sunshine.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.

When does it snow the most?

The month with the most snowfall in Three River Junction is April, when snow falls for 23.1 days and typically aggregates up to 19.69" (500mm) of snow.

What is the rainiest month in Three River Junction?

May is the month with the most rainfall. Rain falls for 15.5 days and accumulates 3.03" (77mm) of precipitation.

When are the longest days in Three River Junction?

The month with the longest days is June, with an average of 15h and 30min of daylight.

What is the warmest month?

Three River Junction witnesses the warmest weather in July, with temperatures averaging a high of 72.1°F (22.3°C) and a low of 43.7°F (6.5°C).

What is the least humid month?

July and August, with an average relative humidity of 50%, are the least humid months.

What is the driest month?

July is the month with the least rainfall. Rain falls for 11.8 days and accumulates 0.94" (24mm) of precipitation.

When it does not snow in Three River Junction?

The months with the least snowfall are July and August Snow falls for 0.3 days and accumulates 0.08" (2mm) of snow.

What month has the most sunshine?

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

When is the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 5.

What time of the year is the coldest?

December is the coldest month, exhibiting average temperatures of 19.4°F (-7°C) at the peak and 3.9°F (-15.6°C) at the base.

What is the month with the shortest days in Three River Junction?

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

Average temperature
Three River Junction, WY

Average temperature - Three River Junction, WY

The warmest month (with the highest average high temperature) is July (72.1°F).
The month with the lowest average high temperature is December (19.4°F).

The month with the highest average low temperature is July (43.7°F).
The coldest month (with the lowest average low temperature) is December (3.9°F).

Average pressure
Three River Junction, WY

Average pressure - Three River Junction, WY

The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Three River Junction, WY

Average wind speed - Three River Junction, WY

The windiest months (with the highest average wind speed) are February and June (7.4mph).
The calmest months (with the lowest average wind speed) are May and August (6.3mph).

Average humidity
Three River Junction, WY

Average humidity - Three River Junction, WY

The month with the highest relative humidity is February (94%).
The months with the lowest relative humidity are July and August (50%).

Average rainfall
Three River Junction, WY

Average rainfall - Three River Junction, WY

The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is July (0.94").

Average rainfall days
Three River Junction, WY

Average rainfall days - Three River Junction, WY

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (2.2 days).

Average snowfall
Three River Junction, WY

Average snowfall - Three River Junction, WY

The month with the highest snowfall is April (19.69").
The months with the least snowfall are July and August (0.08").

Average snowfall days
Three River Junction, WY

Average snowfall days - Three River Junction, WY

The month with the highest number of snowfall days is March (25.3 days).
The month with the least snowfall days is July (0.3 days).

Average daylight / Average sunshine
Three River Junction, WY

Average daylight / Average sunshine - Three River Junction, 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 48min).
The months with the least sunshine are February and December (Average sunshine: 3h and 18min).

Average sunshine days
Three River Junction, WY

Average sunshine days - Three River Junction, WY

The month with the most sunshine days is September (16 days).
The month with the least sunshine days is April (4.5 days).

Average UV index
Three River Junction, WY

Average UV index - Three River Junction, WY

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).

Average visibility
Three River Junction, WY

Average visibility - Three River Junction, WY

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).

Three River Junction, Wyoming, USA

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