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Fargo weather by month: averages, rainfall & climate trends

Fargo swings through a wide annual range, with 62.9°F between the monthly means of its warmest and coldest months. The heavier rain months run from April to September. Fargo weather by month: average temperatures, rainfall, extremes and how the climate has changed since 1940.

Today vs average

−5.8°Fhigh well below average

46° / 31°Today
52° / 34°Average
see today in detail →

How it's changed

+2.0°Faverage temperature, 2016–2025 vs 1940–1949average temperature vs 1940–49159frost days a year now (2016–2025) · 165 in the 1940sfrost days a year · 165 in the 1940s26days above 86°F a year now (2016–2025) · 17 in the 1940sdays above 86°F · 17 in the 1940s+2.0°F vs the 1940s · see how it's changed →
Weather by montha typical year, averaged over the full recordJanuary, rain 0.9 incheshigh 18°low 1°February, rain 0.8 incheshigh 23°low 5°March, rain 1.5 incheshigh 37°low 19°April, rain 2.4 incheshigh 54°low 34°May, rain 3.5 incheshigh 68°low 46°June, rain 4.0 incheshigh 77°low 57°July, rain 3.4 incheshigh 82°low 61°August, rain 3.2 incheshigh 80°low 59°September, rain 2.7 incheshigh 71°low 49°October, rain 2.1 incheshigh 57°low 38°November, rain 1.2 incheshigh 37°low 23°December, rain 1.1 incheshigh 23°low 8°wettest month June, 4.0 inches · 26.9 inches a yearsee month by month →

Right now

What it's doing today vs the historical average for this date.
Overcast

Right now

38.1°

30°feels like
56%humidity
24°dew point
9 mphfrom NE
UV index0.0
sunrise08:01sunset18:20day length10h 20m
TodayOvercast46°31°
TueOvercast47°35°
WedOvercast57°45°
ThuClear56°40°
FriClear51°36°
SatOvercast61°42°
SunClear65°47°

On this date: October 26

Today (forecast)
46° / 31°
Average for October 26
52° / 34°

High well below average · −5.8°F

  • Highest since 1940: 77.7° · 1989
  • Lowest since 1940: 14.3° · 1997
  • One year ago: 67° / 50°

Every October 26 in history, coldest to hottest

▲ Daily highs▼ Daily lows

Dots show daily highs (top) and lows (bottom) for each October 26 on record (n = 87). Outlined dots are today's forecast.

Area we sample

Each city's history comes from one ERA5 grid cell, about 28 km across, shown by the dashed box. Near mountains or coasts, conditions can vary across the cell.

Location & data

Historical weather for Fargo is sampled from the ECMWF ERA5 reanalysis at 46.88°N, 96.79°W, with daily records since 1940.

Coordinates
46.88°N, 96.79°W
Time zone
America/Chicago
Period
1940–2026
Data source
ERA5 (ECMWF)

Last 30 days

24 of the last 31 days were warmer than the historical average for that date. Average difference: +5.9°F.

Each bar is one day, from morning low to afternoon high. Warm-colored bars are days whose mean ran above average; cool bars ran below. The dot inside the bar is the daily mean. The shaded band is the typical 10–90% range expected for that date. Average = the day's mean temperature averaged across every year of record (1940–2026) for that calendar date.

This date over the years

One dot per year, showing the mean temperature on this calendar date. Dots are warmer or cooler than the long-term average (dashed line); the shaded band is the typical 10–90% range, and the highlighted dot is today's forecast. Based on ERA5 reanalysis: modelled estimates, not station readings.

Weather by month

Average temperatures and rainfall for each month: a typical year, from the full record.

Climate overview

The year peaks in July, at around 82.2°F by mid-afternoon, with nights around 61.2°F. In January, the coolest month, afternoons reach about 17.7°F and nights dip to 0.6°F. Around 160 days a year dip below freezing.

The yearly total for Fargo comes to about 26.9 inches; monthly amounts range from 0.8 inches in February up to 4.0 inches in June.

The record here starts in 1940, and since then the annual mean in Fargo has climbed 2.0°F from the first ten years to the last ten. Days above 86°F have grown noticeably more frequent, from around 15 a year in the first decade to about 25 in the last.

Climate graph (climograph)

July is the warmest month, January the coolest: a yearly swing of 63°F. Wettest month: June (~4.0 in). Whole year averages ~26.9 inches of rain.

Bars = average monthly rainfall (right axis). Lines = average daily high and low (left axis). Average = each month's value averaged across every year of record (1940–2026).

Rainy days by month

About 71 rainy days a year: most in June (~9), fewest in February (~3).

Bars = average number of days with ≥ 0.08 in per month. Hover for the monthly rainfall total.

Monthly wind

Average daily peak wind at 10 m, by month.

Monthly solar energy

Average daily incoming solar energy in megajoules per square metre: the record's own proxy for how sunny the month is.

Fargo month by month: what to expect

Typical conditions for each month, averaged across the full record (since 1940). Daylight is the time from sunrise to sunset. Highest and Lowest are the most extreme values in the ERA5 dataset (modelled since 1940), so they can differ from official weather-station readings.

MonthAvg highAvg lowRainRainy daysDaylightHighestLowest
January17.7°0.6°0.9 in38.7 h53.1° (1944)−40.0° (1966)
February23.4°5.4°0.8 in310.1 h65.6° (1958)−38.5° (1996)
March36.6°18.8°1.5 in511.6 h77.0° (1967)−32.1° (1974)
April54.5°33.6°2.4 in713.4 h99.7° (1980)−13.3° (1954)
May68.4°46.3°3.5 in914.8 h96.1° (2025)20.1° (1967)
June77.4°57.0°4.0 in915.7 h103.3° (2021)35.4° (1969)
July82.2°61.2°3.4 in815.3 h102.9° (1988)41.2° (1971)
August80.4°58.7°3.2 in814.0 h101.3° (1983)36.1° (1965)
September70.6°49.4°2.7 in612.3 h97.7° (1983)19.0° (1965)
October56.8°38.1°2.1 in510.6 h89.7° (2015)8.2° (1951)
November37.4°22.8°1.2 in49.1 h72.4° (2020)−24.5° (1996)
December23.1°7.7°1.1 in48.3 h56.3° (2023)−36.3° (1990)

How it's changed

Year-by-year signals from 1940 to today.

Climate stripes

Annual mean shifted from 1940–1949 to 2016–2025 by +2.0°F.

Each vertical stripe is one year. Color encodes how much that year's annual mean differed from the long-term average. Average = each year's annual mean compared to the average of all years (1940–2026). cooler ← → warmer

Annual mean temperature

Long-term trend: +0.33°F per decade.

One point per year, showing the temperature averaged across the whole year. The dashed line is the least-squares long-term trend. Based on ERA5 reanalysis: modelled estimates, not station readings.

Seasonal warming

Dec–Feb is warming fastest: +0.49°F per decade.

Each faint line is one three-month period's average per year; the bold dashed line is its long-term trend. Different parts of the year often warm at different rates. Based on ERA5 reanalysis: modelled estimates, not station readings.

Hot days vs frost days

Days ≥ 86°F per year: 17.3 early in the record → 25.7 recently. Frost days: 165 → 159.

Thin lines are raw yearly counts; thick lines are the smoothed trend that removes year-to-year noise. The hot-day threshold is auto-picked per city so the line actually moves. Average = a centered 5-year rolling average to smooth weather noise.

Yearly hot & cold extremes

Hottest day since 1940 in 2021, coldest in 1966: 103.3°F / −40.0°F.

One point per year: the single hottest and coldest day recorded that year.

Annual rainfall

~26.9 in/year on average. Last decade: −2% vs that average. Long-term trend: +0.10 in per decade.

One bar per year of total rainfall. Dashed line is the long-term average. Average = the average annual rainfall across every year of record (1940–2026).

Day-by-day grid

Each tiny square is one calendar day across the full record, about 30,000 days per city. Use the mode switch above the chart: Anomaly colors each day by how far it ran from the historical average for that date (red = warmer, blue = cooler), Daily mean temp shows the absolute mean temperature for the day (useful to see seasons and heatwaves), and Precipitation shows daily rainfall (useful to spot wet/dry seasons and droughts). Average = the long-term average for that calendar date (1940–2026).

Frequently asked questions about Fargo

Which is the warmest month in Fargo?
On long-term average, the warmest month in Fargo is July (mean daily temperature of about 71.1°F) and the coolest is January (about 8.2°F).
How does today's temperature in Fargo compare to the historical average?
On October 26, 2026, Fargo is forecast to reach a high of 46.2°F and a low of 30.6°F. The long-term average for this date (the full record since 1940) is a high of 52.1°F and a low of 34.1°F, so today's high is 5.8°F cooler than that average.
How much has Fargo warmed since 1940?
Comparing the first decade of the record (1940–1949) with the most recent (2016–2025), the annual mean temperature in Fargo is about 2.0°F warmer.
How much does it rain in Fargo?
Fargo receives about 26.9 inches of precipitation per year on long-term average, with June typically the wettest month.
What is the average temperature in Fargo?
Over the full record (since 1940), the annual mean temperature in Fargo is about 42.0°F. The warmest month is July and the coolest is January.
What are the average temperatures in Fargo by month?
Average daily highs and lows for each month in Fargo (°F, full record since 1940): January 18°/1°, February 23°/5°, March 37°/19°, April 54°/34°, May 68°/46°, June 77°/57°, July 82°/61°, August 80°/59°, September 71°/49°, October 57°/38°, November 37°/23°, December 23°/8°.
What is the weather like in Fargo in summer?
In summer, June through August, Fargo is warm. Afternoons run 77–82°F and nights 57–61°F; July is the warmest month. Rain is steady at around 3.5 inches a month, spread over roughly 8 days. It is the wettest season of the year.
What is the weather like in Fargo in winter?
Winter in Fargo (December to February) is freezing. Expect 18–23°F by day and 1–8°F at night, with January the coldest month. Snow is steady at around 1.0 inches of precipitation a month, spread over roughly 3 days. It is the driest season of the year.
What is the weather like in Fargo in spring?
In spring, March through May, Fargo is cool. March starts at 37°F by day and 19°F at night; by May it is 68°F and 46°F. Rain and snow rise from 1.5 inches on 5 days in March to 3.5 inches on 9 days in May.
What is the weather like in Fargo in autumn?
September to November is autumn in Fargo, and it is cool. It cools from 71°F by day and 49°F at night in September to 37°F and 23°F in November. Rain and snow fall off from 2.7 inches on 6 days in September to 1.2 inches on 4 days in November.
How many days a year does it rain in Fargo?
On long-term average, Fargo has about 71 days a year with at least 0.08 inches of rain or snow. The annual total is roughly 26.9 inches.

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