The best times to visit Northwest Colorado for ideal weather are

May 28th to August 26th

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



Other Northwest Colorado Travel Info

Weather in Northwest Colorado


Average temperatures in Northwest Colorado vary drastically. Considering humidity, temperatures feel cold for most of the year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 27th 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 Northwest Colorado, 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 88.4°F (31.3°C) with temperatures rarely dropping below 50.7°F (10.4°C) at night.

Northwest Colorado Temperatures (Fahrenheit)


Northwest Colorado 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.

Northwest Colorado Perceived Temperature (F)


Northwest Colorado Perceived Temperature (C)



Average Northwest Colorado 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 32.9 17.6 4.3
Feb 38.9 25.1 13
Mar 51.5 35.6 22
Apr 58.7 42.4 28.1
May 68.4 51.4 35.5
Jun 81.9 62.6 42.3
Jul 87.1 68.2 50
Aug 84.9 66 48.6
Sep 77.3 58 40.8
Oct 62.8 45 30.2
Nov 49.2 33 20
Dec 34.5 21.5 9.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 0.5 -8 -15.4
Feb 3.8 -3.8 -10.6
Mar 10.8 2 -5.6
Apr 14.8 5.8 -2.2
May 20.2 10.8 1.9
Jun 27.7 17 5.7
Jul 30.6 20.1 10
Aug 29.4 18.9 9.2
Sep 25.2 14.4 4.9
Oct 17.1 7.2 -1
Nov 9.6 0.6 -6.7
Dec 1.4 -5.8 -12.4



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Northwest Colorado are June, January, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid January. For example, on the week of January 15th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid April with an average of 2 days of significant precipitation the week of April 9th.

When can you find snow in Northwest Colorado? 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 Northwest Colorado.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 11% 0 1
Feb 12% 0 0.8
Mar 15% 0 1.1
Apr 20% 0 1.9
May 21% 0 2.1
Jun 10% 0 0.9
Jul 12% 0 1.3
Aug 16% 0 1.4
Sep 18% 0 1.9
Oct 16% 0 1.6
Nov 16% 0 1.1
Dec 13% 0 1.3

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 11 0 2.5
Feb 12 0 2
Mar 15 0 2.8
Apr 20 0 4.8
May 21 0 5.3
Jun 10 0 2.3
Jul 12 0 3.3
Aug 16 0 3.6
Sep 18 0 4.8
Oct 16 0 4.1
Nov 16 0 2.8
Dec 13 0 3.3


Humidity and Wind

Northwest Colorado has some humid months, and dry months in the opposite season. The least humid month is June (27.2% relative humidity), and the most humid month is December (61.9%).

Wind in Northwest Colorado is usually calm. The windiest month is April, followed by May and June. April’s average wind speed of around 5.9 knots (6.7 MPH or 10.8 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early June where average top sustained speeds reach 17.8 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 2.5 Barely noticeable 8.7 Gentle breeze
Feb 3.5 Barely noticeable 11.3 Significant breeze
Mar 4.7 Light breeze 14.1 Gentle breeze
Apr 5.9 Light breeze 16.3 Significant breeze
May 5.6 Light breeze 16.3 Gentle breeze
Jun 5.5 Light breeze 16.4 Significant breeze
Jul 4.4 Light breeze 14.6 Gentle breeze
Aug 4.5 Light breeze 13.8 Significant breeze
Sep 4.4 Light breeze 13.7 Gentle breeze
Oct 4 Light breeze 12.6 Significant breeze
Nov 3.8 Barely noticeable 11.7 Gentle breeze
Dec 3 Barely noticeable 10 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 60.3%
Feb 55.8%
Mar 43.9%
Apr 38.8%
May 37.6%
Jun 27.2%
Jul 33.7%
Aug 34.2%
Sep 36.2%
Oct 43.3%
Nov 50.1%
Dec 61.9%


Is it Safe to Travel to Northwest Colorado?

Our best data indicates this area is generally safe. As of Oct 07, 2019 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 Sep 23, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Northwest Colorado, the United States is May, followed by July and June. 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 Northwest Colorado 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 44.1 in December means 44.1% of the tourists vs. May.



Overall Northwest Colorado Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 76.1°F (24.5°C) and 42.6°F (5.9°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 6 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 3 to 5 days of precipitation per month. June – August is the busiest season for tourism in Northwest Colorado, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 80.4°F (26.9°C) and 43.3°F (6.3°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: approximately 5 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 Northwest Colorado to be enjoyable for warm weather travelers. The average high during this season is between 42.6°F (5.9°C) and 28.8°F (-1.8°C). On average, it rains or snows a smalll amount: 3 to 4 times per month. These times of year are fairly slow with tourists.


Best Times to Travelthe United States › Northwest Colorado, the United States