Jackson
Wyoming, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Jackson, WY

A calm and clear river and vast green fields approaching the iconic white mountains within the Grand Teton National Park in Jackson, Wyoming
A calm and clear river and vast green fields approaching the iconic white mountains within the Grand Teton National Park in Jackson, Wyoming
January, the same as December, in Jackson, Wyoming, is another subzero cold winter month, with average temperature varying between 32°F (0°C) and 23.5°F (-4.7°C). In January, the average high-temperature is relatively the same as in December - a still subzero cold 23.5°F (-4.7°C). Weather in January »

February, the last month of the winter, in Jackson, is also a subzero cold month, with average temperature varying between 32°F (0°C) and 24.3°F (-4.3°C). In Jackson, the average high-temperature is practically the same as in January - a still subzero cold 24.3°F (-4.3°C). Weather in February »

March, the first month of the spring, in Jackson, is still a freezing cold month, with average temperature fluctuating between 30.6°F (-0.8°C) and 32°F (0°C). In Jackson, the average high-temperature marginally rises, from 24.3°F (-4.3°C) in February, to a still freezing cold 30.6°F (-0.8°C). Weather in March »

April in Jackson, Wyoming, is a cold spring month, with temperature in the range of an average low of 32°F (0°C) and an average high of 37.8°F (3.2°C). In April, the average high-temperature marginally rises, from a freezing cold 30.6°F (-0.8°C) in March, to a wintry 37.8°F (3.2°C). Weather in April »

May, the last month of the spring, in Jackson, is a fresh month, with average temperature ranging between max 50.5°F (10.3°C) and min 32°F (0°C). In May, the average high-temperature rises, from a cold 37.8°F (3.2°C) in April, to a cool 50.5°F (10.3°C). Weather in May »

The first month of the summer, June, is a comfortable month in Jackson, Wyoming, with temperature in the range of an average low of 32°F (0°C) and an average high of 63°F (17.2°C). In June, the average high-temperature rises, from a cool 50.5°F (10.3°C) in May, to a comfortable 63°F (17.2°C). Weather in June »

July is a warm summer month in Jackson, Wyoming, with average temperature ranging between max 73.4°F (23°C) and min 32°F (0°C). July is the warmest month, with an average high-temperature of 73.4°F (23°C) and an average low-temperature of 32°F (0°C). Weather in July »

The last month of the summer, August, is also an agreeable month in Jackson, Wyoming, with average temperature varying between 32°F (0°C) and 72.1°F (22.3°C). In Jackson, the average high-temperature in August is almost the same as in July - an agreeable 72.1°F (22.3°C). Weather in August »

September, the first month of the autumn, in Jackson, is still a comfortable month, with average temperature ranging between max 62.8°F (17.1°C) and min 32°F (0°C). In September, the average high-temperature decreases, from a pleasant 72.1°F (22.3°C) in August, to a comfortable 62.8°F (17.1°C). Weather in September »

October, like September, is a frosty autumn month in Jackson, Wyoming, with average temperature fluctuating between 45.5°F (7.5°C) and 32°F (0°C). In October, the average high-temperature declines considerably, from an enjoyable 62.8°F (17.1°C) in September, to a frosty 45.5°F (7.5°C). Weather in October »

The last month of the autumn, November, is also a wintry month in Jackson, Wyoming, with average temperature ranging between max 32°F (0°C) and min 32°F (0°C). In November, the average high-temperature decreases, from a chilly 45.5°F (7.5°C) in October, to a wintry 32°F (0°C). Weather in November »

The first month of the winter, December, is still a freezing cold month in Jackson, Wyoming, with temperature in the range of an average high of 21.9°F (-5.6°C) and an average low of 32°F (0°C). With an average high-temperature of 21.9°F (-5.6°C) and an average low-temperature of 32°F (0°C), December is the coldest month. Weather in December »

How much does it rain in Jackson?

Throughout the year, in Jackson, Wyoming, there are 103 rainfall days, and 29.84" (758mm) of precipitation is accumulated.

When does it snow in Jackson?

Months with snowfall are January through December.

How many days does it snow in Jackson?

Throughout the year, there are 173.6 snowfall days, and 181.26" (4604mm) of snow is accumulated.

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

Months with the lowest UV index in Jackson are January through April, October through December, with an average maximum UV index of 1.

What is the most humid month in Jackson?

With an average relative humidity of 94%, February is the most humid month.

What is the wettest month in Jackson?

The month with the most rainfall in Jackson, Wyoming, is February when the rain falls for 3.9 days and typically aggregates up to 3.54" (90mm) of precipitation.

What is the snowiest month in Jackson?

The month with the most snowfall is February when snow falls for 23.7 days and typically aggregates up to 29.33" (745mm) of snow.

What is the month with the least sunshine in Jackson?

With an average of 3.4h of sunshine, February has the least sunshine of the year.

When are the longest days in Jackson?

The month with the longest days is June, with an average of 15.4h of daylight.

What is the warmest month in Jackson?

July is the warmest month in Jackson, with an average high-temperature of 73.4°F (23°C) and an average low-temperature of 32°F (0°C).

What month has the most sunshine in Jackson?

The month with the most sunshine in Jackson, Wyoming, is July, with an average of 11.6h of sunshine.

When is the highest UV index in Jackson?

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

What is the least humid month in Jackson?

With an average relative humidity of 50%, August is the least humid month.

What is the driest month in Jackson?

The month with the least rainfall is August when the rain falls for 11.8 days and typically collects 1.34" (34mm) of precipitation.

When it does not snow in Jackson?

August is the month with the least snowfall in Jackson, Wyoming. Snow falls for 0.5 days and accumulates 0.12" (3mm) of snow.

What is the coldest month in Jackson?

December is the coldest month in Jackson, with an average high-temperature of 21.9°F (-5.6°C) and an average low-temperature of 32°F (0°C).

What is the month with the shortest days in Jackson?

With an average of 9h of daylight, December has the shortest days of the year in Jackson, Wyoming.
Average temperature - Jackson, WY

The warmest month (with the highest average high temperature) is July (73.4°F).
The month with the lowest average high temperature is December (21.9°F).

Months with the highest average low temperature are January, February, March, April, May, June, July, August, September, October, November and December (0°F).
Coldest months (with the lowest average low temperature) are January, February, March, April, May, June, July, August, September, October, November and December (0°F).

Average rainfall - Jackson, WY

The wettest month (with the highest rainfall) is February (3.54").
The driest month (with the lowest rainfall) is August (1.34").

Average rainfall days - Jackson, WY

The month with the highest number of rainy days is May (15.4 days).
The month with the lowest number of rainy days is January (2.9 days).

Average snowfall - Jackson, WY
Average snowfall days - Jackson, WY

The month with the highest number of snowfall days is March (24.8 days).
The month with the lowest number of snowfall days is July (0.4 days).

Average daylight / Average sunshine - Jackson, WY
Average UV index - Jackson, WY