The best times to visit Sterling for ideal weather are

May 21st to October 21st

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



Other Sterling Travel Info

Weather in Sterling


Average temperatures in Sterling 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 less temperate than some — in the 39th 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 Sterling, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 94°F (34.4°C) with temperatures rarely dropping below 55.5°F (13.1°C) at night.

Sterling Temperatures (Fahrenheit)


Sterling 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.

Sterling Perceived Temperature (F)


Sterling Perceived Temperature (C)



Average Sterling 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 43.9 28.5 15.9
Feb 50.4 31.3 17.3
Mar 63.2 43.2 25.7
Apr 64.3 47.4 32.4
May 65.5 51.6 40.7
Jun 83.9 69.2 55.6
Jul 87.9 71 55.1
Aug 91.1 71 52.1
Sep 86.7 65.9 46.5
Oct 68.9 52.5 38
Nov 49.8 31.7 18.2
Dec 40.2 25.2 12

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 6.6 -1.9 -8.9
Feb 10.2 -0.4 -8.2
Mar 17.3 6.2 -3.5
Apr 17.9 8.6 0.2
May 18.6 10.9 4.8
Jun 28.8 20.7 13.1
Jul 31.1 21.7 12.8
Aug 32.8 21.7 11.2
Sep 30.4 18.8 8.1
Oct 20.5 11.4 3.3
Nov 9.9 -0.2 -7.7
Dec 4.6 -3.8 -11.1



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Sterling are January, February, and then March. 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 early to mid May with an average of 5 days of significant precipitation the week of May 7th.

When can you find snow in Sterling? 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 Sterling.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 0% 0 0
Feb 0% 0 0.1
Mar 0% 0 0.1
Apr 36% 0 3.5
May 42% 0 3.4
Jun 8% 0 0.9
Jul 13% 0 1.7
Aug 8% 0 0.7
Sep 0% 0 0.1
Oct 11% 0 1.6
Nov 3% 0 0.6
Dec 2% 0 0.4

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 0 0 0
Feb 0 0 0.3
Mar 0 0 0.3
Apr 36 0 8.9
May 42 0 8.6
Jun 8 0 2.3
Jul 13 0 4.3
Aug 8 0 1.8
Sep 0 0 0.3
Oct 11 0 4.1
Nov 3 0 1.5
Dec 2 0 1


Humidity and Wind

Sterling has some very humid months, and slightly dry months in the opposite season. The least humid month is September (34.3% relative humidity), and the most humid month is May (71.8%).

Wind in Sterling is usually moderate. The windiest month is April, followed by May and January. April’s average wind speed of around 10.3 knots (11.8 MPH or 19 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 January where average top sustained speeds reach 24.3 knots, which is considered a strong breeze.

Relative Humidity (%)

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

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 9.5 Gentle breeze 19.2 Strong breeze
Feb 9.1 Gentle breeze 18.4 Strong breeze
Mar 9.4 Gentle breeze 17.9 Strong breeze
Apr 10.3 Gentle breeze 19.6 Strong breeze
May 9.6 Gentle breeze 18.8 Strong breeze
Jun 7.9 Gentle breeze 16.4 Significant breeze
Jul 7.9 Gentle breeze 18.9 Strong breeze
Aug 8.4 Gentle breeze 17.5 Strong breeze
Sep 7.6 Gentle breeze 16.6 Strong breeze
Oct 8.6 Gentle breeze 17.1 Strong breeze
Nov 9 Gentle breeze 16.7 Strong breeze
Dec 8.8 Gentle breeze 16.3 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 61.5%
Feb 56.2%
Mar 36%
Apr 52.2%
May 71.8%
Jun 56%
Jul 46.4%
Aug 39.4%
Sep 34.3%
Oct 50.3%
Nov 48.7%
Dec 61.9%


Is it Safe to Travel to Sterling?

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 Sterling, CO, US is July, followed by June and May. 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 Sterling in November. 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 50 in November means 50% of the tourists vs. July.



Overall Sterling Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 78.3°F (25.7°C) and 33.4°F (0.8°C) with warmer temperatures in the later months. Rain is somewhat common with 0 to 13 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 2 to 4 days of precipitation per month. June – August is the busiest season for tourism in Sterling, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 90°F (32.2°C) and 42.8°F (6°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 0 to 3 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Sterling to be enjoyable for warm weather travelers. The average high during this season is between 66.2°F (19°C) and 24.5°F (-4.2°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are fairly slow with tourists.


Best Times to Travelthe United States › Sterling, CO, US