The best times to visit Grand Forks for ideal weather are

May 21st to October 7th

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



Other Grand Forks Travel Info

Weather in Grand Forks


Average temperatures in Grand Forks 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 43rd 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 Grand Forks, 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 86.7°F (30.4°C) with temperatures rarely dropping below 61.3°F (16.3°C) at night.

Grand Forks Temperatures (Fahrenheit)


Grand Forks 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.

Grand Forks Perceived Temperature (F)


Grand Forks Perceived Temperature (C)



Average Grand Forks 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 19.3 8.4 -1.6
Feb 20.1 9.3 -0.5
Mar 35.9 24.7 14.6
Apr 52.8 40.3 29.9
May 68.9 54.9 42
Jun 78.8 65.8 53.6
Jul 84.4 71.3 58.7
Aug 82.7 68.9 55.8
Sep 74.1 59.1 46.7
Oct 58.8 46 35.4
Nov 38.3 27.6 18.5
Dec 22.7 13.9 5.4

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -7.1 -13.1 -18.7
Feb -6.6 -12.6 -18.1
Mar 2.2 -4.1 -9.7
Apr 11.6 4.6 -1.2
May 20.5 12.7 5.6
Jun 26 18.8 12
Jul 29.1 21.8 14.8
Aug 28.2 20.5 13.2
Sep 23.4 15.1 8.2
Oct 14.9 7.8 1.9
Nov 3.5 -2.4 -7.5
Dec -5.2 -10.1 -14.8



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Grand Forks are February, November, 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 January and early February. For example, on the week of January 29th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid June with an average of 3 days of significant precipitation the week of June 18th.

When can you find snow in Grand Forks? Weather stations report large amounts of snow likely to be deepest around March, especially close to early March. The best time to ski (if at all) in Grand Forks is often around around January 15th when fresh powder is deepest. 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 Grand Forks.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 8% 5.5 0.7
Feb 4% 5.6 0.4
Mar 10% 5.7 0.9
Apr 15% 3.8 1.8
May 25% 0 3.4
Jun 29% 0 3.7
Jul 15% 0 3.5
Aug 13% 0 3
Sep 10% 0 2.2
Oct 13% 2.6 1.5
Nov 5% 2 0.6
Dec 9% 4 0.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 8 14 1.8
Feb 4 14.2 1
Mar 10 14.5 2.3
Apr 15 9.7 4.6
May 25 0 8.6
Jun 29 0 9.4
Jul 15 0 8.9
Aug 13 0 7.6
Sep 10 0 5.6
Oct 13 6.6 3.8
Nov 5 5.1 1.5
Dec 9 10.2 1.5


Humidity and Wind

Grand Forks has some very humid months, with other comfortably humid months. The least humid month is May (54.8% relative humidity), and the most humid month is December (70.9%).

Wind in Grand Forks is usually moderate. The windiest month is January, followed by April and May. January’s average wind speed of around 10.4 knots (12 MPH or 19.3 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 early to mid May where average top sustained speeds reach 19.6 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 10.4 Gentle breeze 18.2 Strong breeze
Feb 9.5 Gentle breeze 17 Strong breeze
Mar 9.5 Gentle breeze 16.6 Strong breeze
Apr 9.9 Gentle breeze 17.6 Strong breeze
May 9.6 Gentle breeze 17.3 Strong breeze
Jun 8.1 Gentle breeze 15.5 Significant breeze
Jul 7.1 Gentle breeze 14.5 Strong breeze
Aug 7 Gentle breeze 13.9 Significant breeze
Sep 8.3 Gentle breeze 15.5 Strong breeze
Oct 9.2 Gentle breeze 16.4 Significant breeze
Nov 9.3 Gentle breeze 16.1 Strong breeze
Dec 9.1 Gentle breeze 15.5 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 68.3%
Feb 67.1%
Mar 66.5%
Apr 56.1%
May 54.8%
Jun 60.1%
Jul 61.1%
Aug 59.9%
Sep 57.3%
Oct 59.7%
Nov 67.5%
Dec 70.9%


Is it Safe to Travel to Grand Forks?

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 Grand Forks, ND, US is August, followed by March and February. 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 Grand Forks in June. 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 somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 55.6 in June means 55.6% of the tourists vs. August.



Overall Grand Forks Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 73.7°F (23.2°C) and 18.1°F (-7.7°C) with far warmer temperatures in the later months. Rain is somewhat common with 3 to 8 days of significant precipitation per month. Spring is the 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 the most precipitation with 4 to 9 days of precipitation per month. June – August is the second busiest season for tourism in Grand Forks, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 77.7°F (25.4°C) and 27.7°F (-2.4°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 2 to 4 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 Grand Forks to be enjoyable for warm weather travelers. The average high during this season is between 25.6°F (-3.6°C) and 16°F (-8.9°C). On average, it rains or snows a smalll amount: 1 to 3 times per month. These times of year are fairly slow with tourists.


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