Green River
Wyoming, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Green River, WY

January, the same as December, is another cold winter month in Green River, Wyoming, with average temperature varying between 0.3°C (32.5°F) and -14.9°C (5.2°F). The coldest month is January, with an average high-temperature of 0.3°C (32.5°F) and an average low-temperature of -14.9°C (5.2°F). Weather in January »
February, the last month of the winter, in Green River, is also a wintry month, with temperature in the range of an average low of -12.8°C (9°F) and an average high of 3.1°C (37.6°F). In February, the average high-temperature is practically the same as in January - a still wintry 3.1°C (37.6°F). Weather in February »

The first month of the spring, March, is a chilly month in Green River, Wyoming, with average temperature fluctuating between -5.8°C (21.6°F) and 9.1°C (48.4°F). In March, the average high-temperature rises, from a cold 3.1°C (37.6°F) in February, to a chilly 9.1°C (48.4°F). Weather in March »

April is a mild spring month in Green River, Wyoming, with average temperature fluctuating between -2.1°C (28.2°F) and 14.7°C (58.5°F). In Green River, Wyoming, the average high-temperature in April rises, from a chilly 9.1°C (48.4°F) in March, to a mild 14.7°C (58.5°F). Weather in April »

The last month of the spring, May, is an agreeable month in Green River, Wyoming, with average temperature fluctuating between 20.3°C (68.5°F) and 2.2°C (36°F). In Green River, the average high-temperature rises, from a moderate 14.7°C (58.5°F) in April, to an agreeable 20.3°C (68.5°F). Weather in May »

The first month of the summer, June, is a moderately hot month in Green River, Wyoming, with average temperature fluctuating between 26.3°C (79.3°F) and 6.2°C (43.2°F). In June, the average high-temperature rises, from a pleasant 20.3°C (68.5°F) in May, to a moderately hot 26.3°C (79.3°F). Weather in June »

July in Green River, Wyoming, is a tropical summer month, with temperature in the range of an average high of 30°C (86°F) and an average low of 9.3°C (48.7°F). With an average high-temperature of 30°C (86°F) and an average low-temperature of 9.3°C (48.7°F), July is the warmest month. Weather in July »

August, the last month of the summer, in Green River, is also a moderately hot month, with average temperature fluctuating between 29.2°C (84.6°F) and 8.1°C (46.6°F). In Green River, the average high-temperature is relatively the same as in July - a warm 29.2°C (84.6°F). Weather in August »

September, the first month of the autumn, in Green River, is still a warm month, with temperature in the range of an average low of 2.7°C (36.9°F) and an average high of 23.6°C (74.5°F). In Green River, the average high-temperature decreases, from 29.2°C (84.6°F) in August, to a still moderately hot 23.6°C (74.5°F). Weather in September »

October, like September, in Green River, Wyoming, is another comfortable autumn month, with average temperature fluctuating between 16.9°C (62.4°F) and -3°C (26.6°F). In Green River, the average high-temperature decreases, from a warm 23.6°C (74.5°F) in September, to an enjoyable 16.9°C (62.4°F). Weather in October »

November, the last month of the autumn, in Green River, is another chilly month, with average temperature fluctuating between 7.1°C (44.8°F) and -8.8°C (16.2°F). In Green River, the average high-temperature plummets, from a comfortable 16.9°C (62.4°F) in October, to a chilly 7.1°C (44.8°F). Weather in November »

December, the first month of the winter, in Green River, is also a wintry month, with average temperature fluctuating between 1.4°C (34.5°F) and -14.6°C (5.7°F). In Green River, the average high-temperature drops, from a frosty 7.1°C (44.8°F) in November, to a wintry 1.4°C (34.5°F). Weather in December »

What is the coldest month in Green River?

January is the coldest month, with an average high-temperature of 32.5°F (0.3°C) and an average low-temperature of 5.2°F (-14.9°C).

How many days does it rain in Green River?

Throughout the year, there are 88 rainfall days, and 8" (203.7mm) of precipitation is accumulated.

What is the wettest month in Green River?

May is the month with the most rainfall. Rain falls for 9 days and accumulates 1.2" (30.5mm) of precipitation.

When are the longest days in Green River?

With an average of 15.1h of daylight, June has the longest days of the year in Green River, Wyoming.

What is the month with the most sunshine in Green River?

Months with the most sunshine are June and July, with an average of 11h of sunshine.

What are the months with the highest UV index in Green River?

Months with the highest UV index in Green River are June and July, with an average maximum UV index of 10.

What is the warmest month in Green River?

July is the warmest month, with an average high-temperature of 86°F (30°C) and an average low-temperature of 48.7°F (9.3°C).

What is the driest month in Green River?

The month with the least rainfall in Green River is December when the rain falls for 7 days and typically collects 0.4" (8.9mm) of precipitation.

What is the month with the shortest days in Green River?

The month with the shortest days is December, with an average of 9.2h of daylight.

What is the month with the least sunshine in Green River?

December has the least sunshine of the year, with an average of 5h of sunshine.

What is the month with the lowest UV index in Green River?

December is the month with the lowest UV index in Green River, with an average maximum UV index of 1.
Average rainfall - Green River, WY

The wettest month (with the highest rainfall) is May (1.2").
Driest months (with the lowest rainfall) are January, February and December (0.4").

Average rainfall days - Green River, WY

Months with the highest number of rainy days are March, April and May (9 days).
Months with the lowest number of rainy days are August and October (6 days).

Average daylight / Average sunshine - Green River, WY