The best times to visit Green River for ideal weather are

April 23rd to July 1st


August 20th to October 14th

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


Average temperatures in Green River vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 45th 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 late June where highs are regularly around 98.2°F (36.8°C) with temperatures rarely dropping below 63.5°F (17.5°C) at night.

Green River Temperatures (Fahrenheit)


Green River Temperatures (Celsius)


“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)


Green River Perceived Temperature (C)



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 34 22.3 11.1
Feb 47.1 34.2 22.7
Mar 61.4 46.1 31.2
Apr 68.7 53.2 37.7
May 78.8 63.3 47.2
Jun 92.3 76.7 57.7
Jul 97.2 82 66
Aug 94 78.4 62.4
Sep 85.9 70.1 54
Oct 70.1 54.7 40
Nov 54.6 40.1 26.7
Dec 37.3 25.9 14.9

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 1.1 -5.4 -11.6
Feb 8.4 1.2 -5.2
Mar 16.3 7.8 -0.4
Apr 20.4 11.8 3.2
May 26 17.4 8.4
Jun 33.5 24.8 14.3
Jul 36.2 27.8 18.9
Aug 34.4 25.8 16.9
Sep 29.9 21.2 12.2
Oct 21.2 12.6 4.4
Nov 12.6 4.5 -2.9
Dec 2.9 -3.4 -9.5



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 March, June, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late May to early June. For example, on the week of May 28th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early August with an average of 1 days of significant precipitation the week of July 30th.

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.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 3% 0 0.3
Feb 5% 0 0.4
Mar 2% 0 0.3
Apr 5% 0 0.3
May 8% 0 0.7
Jun 2% 0 0.3
Jul 6% 0 0.6
Aug 9% 0 0.9
Sep 8% 0 0.7
Oct 7% 0 0.6
Nov 4% 0 0.4
Dec 8% 0 0.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 3 0 0.8
Feb 5 0 1
Mar 2 0 0.8
Apr 5 0 0.8
May 8 0 1.8
Jun 2 0 0.8
Jul 6 0 1.5
Aug 9 0 2.3
Sep 8 0 1.8
Oct 7 0 1.5
Nov 4 0 1
Dec 8 0 1.8


Humidity and Wind

Green River has some humid months, with some very dry months. The least humid month is June (10.8% relative humidity), and the most humid month is January (64.6%).

Wind in Green River is usually calm. The windiest month is April, followed by May and June. April’s average wind speed of around 7.3 knots (8.4 MPH or 13.6 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late May where average top sustained speeds reach 20.4 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

Avg. Relative Humidity


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

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 2.9 Barely noticeable 9.6 Gentle breeze
Feb 4 Light breeze 11.7 Significant breeze
Mar 5.6 Light breeze 15 Gentle breeze
Apr 7.3 Gentle breeze 18.5 Strong breeze
May 7.2 Gentle breeze 18.4 Gentle breeze
Jun 7 Gentle breeze 18.2 Strong breeze
Jul 5.9 Light breeze 17.4 Gentle breeze
Aug 5.3 Light breeze 16.2 Significant breeze
Sep 4.9 Light breeze 13.9 Gentle breeze
Oct 4.3 Light breeze 12.2 Significant breeze
Nov 3.7 Barely noticeable 11.1 Gentle breeze
Dec 3.3 Barely noticeable 10.3 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 64.6%
Feb 49.7%
Mar 25.5%
Apr 19.7%
May 19.4%
Jun 10.8%
Jul 19.1%
Aug 22.6%
Sep 22.7%
Oct 29.5%
Nov 36.7%
Dec 60.8%


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, UT, 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

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 87°F (30.6°C) and 52.2°F (11.2°C) with warmer temperatures in the later months. Rain is rare with 1 to 2 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 quite warm. These months see moderate precipitation with 1 to 3 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 89.5°F (31.9°C) and 47.7°F (8.7°C), which will feel comfortable 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 52.2°F (11.2°C) and 27.9°F (-2.3°C). On average, it rains or snows a smalll amount: 1 to 2 times per month. These times of year are the slowest with tourists.


Best Times to Travelthe United States › Green River, UT, US