PlainClimate
NOAA 1991–2020 normals 40°F annual avg Public-domain federal data

Grand Forks, ND Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →

40°F
Avg annual temp
49/100
Comfort score
21.7"
Annual precip
134d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Grand Forks

Grand Forks, North Dakota averages 40°F a year and scores 49/100 on the comfort index - moderate, milder than 18% of U.S. cities.

40°F
average temperature, NOAA 1991-2020 normal
49/100
comfort score, milder than 18% of U.S. cities
21.7"
annual precipitation · 48" snow
134 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

40°F (4°C)

Avg High

51°F

Avg Low

29°F

Annual Precip

21.7"

Annual Snow

48.4"

Comfort Score

49/100

Moderate

Climate Comfort Score

49/100

Moderate

Avg Annual Temperature

40°F

30-year mean (NOAA NCEI)

Annual Precipitation

21.7"

Plus 48.4" of snow

Comfort score vs national 100-point ceiling (Grand Forks) 49.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Grand Forks area.

How Grand Forks compares to every U.S. city

Grand Forks's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

49 Top 82% higher than 18% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). This entry sits in this band. 50–60: 1,433 US cities (21%). Above this entry. 60–70: 1,357 US cities (20%). Above this entry. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Grand Forks

Methodology

Zooming out from Grand Forks's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 16°F (-9°C) -3°F (-19°C) 6°F (-14°C)
February 21°F (-6°C) 1°F (-17°C) 11°F (-12°C)
March 34°F (1°C) 15°F (-9°C) 24°F (-4°C)
April 52°F (11°C) 29°F (-1°C) 41°F (5°C)
May 67°F (19°C) 41°F (5°C) 54°F (12°C)
June 76°F (25°C) 53°F (12°C) 65°F (18°C)
July 81°F (27°C) 57°F (14°C) 69°F (21°C)
August 80°F (27°C) 54°F (12°C) 67°F (19°C)
September 70°F (21°C) 45°F (7°C) 58°F (14°C)
October 54°F (12°C) 33°F (0°C) 43°F (6°C)
November 36°F (2°C) 18°F (-8°C) 27°F (-3°C)
December 21°F (-6°C) 4°F (-15°C) 13°F (-11°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 0.5"

Snow: 9.9"

8.4 days with precipitation

February 0.5"

Snow: 7.1"

6.8 days with precipitation

March 0.9"

Snow: 7.4"

7.3 days with precipitation

April 1.2"

Snow: 3.5"

7.7 days with precipitation

May 2.8"

10.7 days with precipitation

June 3.8"

12.1 days with precipitation

July 3.5"

10.2 days with precipitation

August 2.8"

8.8 days with precipitation

September 2.3"

8.6 days with precipitation

October 1.9"

Snow: 1.6"

8.4 days with precipitation

November 0.9"

Snow: 6.6"

7.0 days with precipitation

December 0.7"

Snow: 12.3"

8.8 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 27

50% probability date

Last Spring Freeze

May 16

50% probability date

Growing Season

134 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

9,533

Higher = more heating needed

Cooling Degree Days

384

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Grand Forks's climate means for you

Grand Forks runs 40°F a year - peaking in July, coldest in January.

  • Gardeners get about 134 frost-free days, with the last spring freeze near May 16 - plan the planting calendar around it, not the regional average.
  • Energy bills track 9,533 heating and 384 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Grand Forks, ND

In Grand Forks, North Dakota, the NOAA 1991–2020 climate normals put the annual average temperature at 40°F, ranging from a mean daily high of 51°F to a mean daily low of 29°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USW00014916, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Grand Forks averages 21.7 inches of precipitation a year, with 48.4 inches typically falling as snow, and that matters as much to daily life here as temperature does. The frost-free season averages 134 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 16 and the first fall freeze near September 27. As for energy demand, 9,533 heating degree days and 384 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Grand Forks scores 49/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Grand Forks, ND?
The average annual temperature in Grand Forks, North Dakota is 40°F. The warmest month averages 81°F (27°C) and the coldest averages -3°F (-19°C).
How much rain does Grand Forks get?
Grand Forks receives 21.7 inches of precipitation annually, including 48.4 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Grand Forks?
Grand Forks has a climate comfort score of 49/100 (Moderate), milder than 18% of U.S. cities in the PlainClimate database.
When is the growing season in Grand Forks?
Grand Forks has approximately 134 frost-free days per year, with the last spring freeze around May 16 and the first fall freeze around September 27.
How much energy does heating and cooling require in Grand Forks?
Grand Forks has 9,533 heating degree days and 384 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Grand Forks climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00014916 near Grand Forks.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00014916. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.