The best times to visit Delta for ideal weather are

April 23rd to June 17th

or

July 30th 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 Delta Travel Info

Weather in Delta

Temperature

Average temperatures in Delta 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 44th 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 Delta, the hottest months are July, June, and then August. See average monthly temperatures below. The warmest time of year is generally late June where highs are regularly around 100.3°F (37.9°C) with temperatures rarely dropping below 60.7°F (15.9°C) at night.

Delta Temperatures (Fahrenheit)

Key
High
Average
Low

Delta 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.

Delta Perceived Temperature (F)

Key
High
Average
Low

Delta Perceived Temperature (C)

Key
High
Average
Low

 

Average Delta 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 42.2 27.2 15.6
Feb 51.9 37.2 25.7
Mar 65.3 47.4 32.1
Apr 70.4 53.3 37.8
May 79.9 62.5 45.6
Jun 95 76.3 55.8
Jul 96.1 78.2 62.1
Aug 93.1 74.5 58.8
Sep 87.1 68.2 51.8
Oct 73 54.5 39.4
Nov 57.5 40.3 26.9
Dec 42.7 29.8 19.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 5.7 -2.7 -9.1
Feb 11.1 2.9 -3.5
Mar 18.5 8.6 0.1
Apr 21.3 11.8 3.2
May 26.6 16.9 7.6
Jun 35 24.6 13.2
Jul 35.6 25.7 16.7
Aug 33.9 23.6 14.9
Sep 30.6 20.1 11
Oct 22.8 12.5 4.1
Nov 14.2 4.6 -2.8
Dec 5.9 -1.2 -6.8

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Delta are December, March, and then June. 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 July with an average of 1 days of significant precipitation the week of July 9th.

When can you find snow in Delta? 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 Delta.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Delta (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 3% 0 0.3
Feb 4% 0 0.3
Mar 1% 0 0.1
Apr 5% 0 0.3
May 5% 0 0.6
Jun 2% 0 0.2
Jul 9% 0 0.6
Aug 7% 0 0.7
Sep 8% 0 0.7
Oct 9% 0 0.6
Nov 3% 0 0.3
Dec 0% 0 0.1

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 3 0 0.8
Feb 4 0 0.8
Mar 1 0 0.3
Apr 5 0 0.8
May 5 0 1.5
Jun 2 0 0.5
Jul 9 0 1.5
Aug 7 0 1.8
Sep 8 0 1.8
Oct 9 0 1.5
Nov 3 0 0.8
Dec 0 0 0.3

 

Humidity and Wind

Delta has some comfortably humid months, with some very dry months. The least humid month is June (12.7% relative humidity), and the most humid month is December (58.8%).

Wind in Delta is usually calm. The windiest month is June, followed by April and May. June’s average wind speed of around 6.2 knots (7.1 MPH or 11.4 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 late May where average top sustained speeds reach 19.7 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 2.3 Barely noticeable 8.2 Gentle breeze
Feb 3.8 Barely noticeable 12 Significant breeze
Mar 4.9 Light breeze 15 Gentle breeze
Apr 6.1 Light breeze 18 Strong breeze
May 6.1 Light breeze 17.9 Gentle breeze
Jun 6.2 Light breeze 17 Strong breeze
Jul 5.1 Light breeze 16.1 Gentle breeze
Aug 4.6 Light breeze 14.1 Significant breeze
Sep 4.5 Light breeze 12.9 Gentle breeze
Oct 4.1 Light breeze 12.6 Significant breeze
Nov 3.4 Barely noticeable 10.7 Gentle breeze
Dec 2.8 Barely noticeable 9.3 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 55.1%
Feb 46.1%
Mar 26.1%
Apr 24.9%
May 24.9%
Jun 12.7%
Jul 26.4%
Aug 30.5%
Sep 30.3%
Oct 34.7%
Nov 42.7%
Dec 58.8%

 

Is it Safe to Travel to Delta?

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 Delta, CO, US 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 Delta 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 44.1 in December means 44.1% of the tourists vs. May.

 

 

Overall Delta Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 89.5°F (31.9°C) and 53.1°F (11.7°C) with warmer temperatures in the later months. Rain is extremely rare with 0 to 1 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 Delta, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 90.6°F (32.6°C) and 52°F (11.1°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 1 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 Delta to be enjoyable for warm weather travelers. The average high during this season is between 55.1°F (12.8°C) and 33.5°F (0.8°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 Travel› the United States › Delta, CO, US