The best times to visit Green River for ideal weather are

June 11th to September 16th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Green River Travel Info

Weather in Green River

Temperature

Average temperatures in Green River vary an incredible amount. Considering humidity, temperatures feel cold for most of the year with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 48th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Green River, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 87.5°F (30.8°C) with temperatures rarely dropping below 55.7°F (13.2°C) at night.

Green River Temperatures (Fahrenheit)

Key
High
Average
Low

Green River Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Green River Perceived Temperature (F)

Key
High
Average
Low

Green River Perceived Temperature (C)

Key
High
Average
Low

 

Average Green River Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 31.6 21.8 13.2
Feb 35.8 25.2 17
Mar 47.5 34.7 24.4
Apr 54.9 40.3 29.1
May 64.7 49.6 37.2
Jun 78.3 62.2 46.9
Jul 86.3 70.1 54.7
Aug 83.7 67.6 52.9
Sep 74.8 58.8 44.7
Oct 59.2 45.1 33.8
Nov 44.2 32.2 22.3
Dec 30.3 21 12.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -0.2 -5.7 -10.4
Feb 2.1 -3.8 -8.3
Mar 8.6 1.5 -4.2
Apr 12.7 4.6 -1.6
May 18.2 9.8 2.9
Jun 25.7 16.8 8.3
Jul 30.2 21.2 12.6
Aug 28.7 19.8 11.6
Sep 23.8 14.9 7.1
Oct 15.1 7.3 1
Nov 6.8 0.1 -5.4
Dec -0.9 -6.1 -10.7

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Green River are December, January, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late May with an average of 1 days of significant precipitation the week of May 21st.

When can you find snow in Green River? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Green River.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Green River (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 1% 0 0.1
Feb 3% 0 0.3
Mar 4% 0 0.4
Apr 8% 0 0.8
May 13% 0 1.3
Jun 6% 0 0.6
Jul 8% 0 0.8
Aug 5% 0 0.6
Sep 6% 0 0.7
Oct 6% 0 0.6
Nov 2% 0 0.3
Dec 1% 0 0.3

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 1 0 0.3
Feb 3 0 0.8
Mar 4 0 1
Apr 8 0 2
May 13 0 3.3
Jun 6 0 1.5
Jul 8 0 2
Aug 5 0 1.5
Sep 6 0 1.8
Oct 6 0 1.5
Nov 2 0 0.8
Dec 1 0 0.8

 

Humidity and Wind

Green River has some humid months, and dry months in the opposite season. The least humid month is July (23.2% relative humidity), and the most humid month is December (61.4%).

Wind in Green River is usually moderate. The windiest month is February, followed by January and April. February’s average wind speed of around 12 knots (13.8 MPH or 22.3 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late March where average top sustained speeds reach 25.4 knots, which is considered a strong breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Green River.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 11.7 Significant breeze 21.1 Strong breeze
Feb 12 Significant breeze 21.9 Strong breeze
Mar 11.2 Significant breeze 21.7 Strong breeze
Apr 11.6 Significant breeze 22.7 Very strong breeze
May 10 Gentle breeze 21.2 Strong breeze
Jun 9.5 Gentle breeze 21.6 Strong breeze
Jul 7.9 Gentle breeze 19.9 Strong breeze
Aug 7.8 Gentle breeze 19.1 Strong breeze
Sep 8.1 Gentle breeze 18.6 Strong breeze
Oct 9.8 Gentle breeze 18.8 Strong breeze
Nov 10.4 Gentle breeze 19.3 Strong breeze
Dec 10.8 Gentle breeze 20.1 Strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 58%
Feb 56.2%
Mar 42.4%
Apr 37.5%
May 36.7%
Jun 24.4%
Jul 23.2%
Aug 24.3%
Sep 28.2%
Oct 39.7%
Nov 46.2%
Dec 61.4%

 

Is it Safe to Travel to Green River?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Green River, WY, US is July, followed by June and August. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Green River in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 36.5 in December means 36.5% of the tourists vs. July.

 

 

Overall Green River Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 71.2°F (21.8°C) and 38.3°F (3.5°C) with warmer temperatures in the later months. Rain is rare with 1 to 4 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with about 2 days of precipitation per month. June – August is the busiest season for tourism in Green River, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 78.1°F (25.6°C) and 38.9°F (3.8°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 1 to 2 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is far too cold this time of year in Green River to be enjoyable for warm weather travelers. The average high during this season is between 38.3°F (3.5°C) and 25.2°F (-3.8°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the slowest with tourists.

 

Best Times to Travel› the United States › Green River, WY, US