PlainClimate
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Fortuna, ND Climate

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

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

Fortuna, North Dakota has an average annual temperature of 38°F and a climate comfort score of 42/100 (Moderate). Annual precipitation totals 15.3", including 36.5" of snow. Based on NOAA 30-year normals (1991–2020).

Avg Temperature

38°F (3°C)

Avg High

50°F

Avg Low

27°F

Annual Precip

15.3"

Annual Snow

36.5"

Comfort Score

42/100

Moderate

Climate Comfort Score

42/100

Moderate

Avg Annual Temperature

38°F

30-year mean (NOAA NCEI)

Annual Precipitation

15.3"

Plus 36.5" of snow

Comfort score vs national 100-point ceiling (Fortuna) 42.0%
National median (≈55)

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

Warming context for Fortuna

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Fortuna captures average conditions across the spread shown — the most recent decade is warmer than the 30-year mean.

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 17°F (-8°C) -2°F (-19°C) 7°F (-14°C)
February 21°F (-6°C) 2°F (-17°C) 12°F (-11°C)
March 34°F (1°C) 14°F (-10°C) 24°F (-4°C)
April 52°F (11°C) 27°F (-3°C) 39°F (4°C)
May 65°F (18°C) 39°F (4°C) 52°F (11°C)
June 73°F (23°C) 49°F (10°C) 61°F (16°C)
July 80°F (26°C) 54°F (12°C) 67°F (19°C)
August 80°F (27°C) 52°F (11°C) 66°F (19°C)
September 69°F (21°C) 41°F (5°C) 55°F (13°C)
October 53°F (11°C) 28°F (-2°C) 40°F (5°C)
November 35°F (1°C) 15°F (-10°C) 25°F (-4°C)
December 22°F (-5°C) 3°F (-16°C) 13°F (-11°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 0.6"

Snow: 6.6"

2.4 days with precipitation

February 0.5"

Snow: 5.7"

2.2 days with precipitation

March 0.6"

Snow: 7.0"

2.7 days with precipitation

April 1.1"

Snow: 3.4"

3.2 days with precipitation

May 2.1"

Snow: 0.9"

5.7 days with precipitation

June 3.3"

9.7 days with precipitation

July 2.4"

6.7 days with precipitation

August 1.5"

4.7 days with precipitation

September 1.2"

3.3 days with precipitation

October 1.0"

Snow: 2.2"

2.7 days with precipitation

November 0.5"

Snow: 4.3"

1.7 days with precipitation

December 0.5"

Snow: 6.4"

2.5 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

September 17

50% probability date

Last Spring Freeze

May 19

50% probability date

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

9,958

Higher = more heating needed

Cooling Degree Days

278

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

Related Data

Climate Guides

Climate Insight: Fortuna, ND

The NOAA 1991–2020 climate normals describe Fortuna, North Dakota as a location with an annual average temperature of 38°F, ranging from a mean daily high of 50°F to a mean daily low of 27°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00323196, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Fortuna receives roughly 15.3 inches of precipitation each year, with 36.5 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near May 19 and the first fall freeze near September 17. For energy use, 9,958 heating degree days and 278 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Fortuna scores 42/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Fortuna, ND?
The average annual temperature in Fortuna, North Dakota is 38°F. The warmest month averages 80°F (27°C) and the coldest averages -2°F (-19°C).
How much rain does Fortuna get?
Fortuna receives 15.3 inches of precipitation annually, including 36.5 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Fortuna?
Fortuna has a climate comfort score of 42/100 (Moderate). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Fortuna?
Growing season data is not available for Fortuna.
How much energy does heating and cooling require in Fortuna?
Fortuna has 9,958 heating degree days and 278 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Fortuna climate data come from?
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USC00323196. These 30-year averages are the standard reference for typical weather conditions.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00323196. For informational purposes only.

Related

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