Climate · Richardton

Richardton, ND climate

Richardton has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 83°, a January night drops to 5°, and about 33 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
83°
205th hottest of 1,711 North Dakota towns
January low
5°
101st mildest of 1,711 North Dakota towns
Rain + melted snow
17 in
280th driest of 1,711 North Dakota towns
Snow a winter
33 in
10th least snowy of 1,453 North Dakota towns
A normal year

What a year in Richardton feels like

Winter

27° / 8°
Typical high / low · 12 days with an inch or more of snow

Spring

53° / 30°
Typical high / low · Last frost around May 9

Summer

80° / 54°
Typical high / low · 17 days reach 90° in a normal year

Fall

56° / 32°
Typical high / low · First frost around Oct 1
Best months to be outsideMayJunJulAugSepHighs of 62–84° and lows of 40° or more
Month by month

Richardton weather by month

Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.

MonthHighLowRain + meltSnowWet days30-yr range
January24°5°0.4" 4.5"4 3° – 29°
February28°8°0.4" 4.3"3 -2° – 30°
March40°19°0.7" 7.3"5 17° – 44°
April54°29°1.4" 3.2"6 35° – 49°
May66°40°2.6" 0.8"8 48° – 59°
June75°51°3.2" 011 58° – 67°
July83°56°2.5" 07 61° – 75°
August82°55°1.8" 06 63° – 74°
September72°45°1.7" 0.2"6 53° – 63°
October56°32°1.4" 2.6"5 35° – 49°
November40°20°0.6" 4.9"4 17° – 40°
December28°9°0.4" 5.4"4 6° – 27°
Year54°31°17.0"33.2"68

“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.

Rain & snow

Rain and snow in Richardton

Richardton gets 17 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 68 days a year.

17 in
Rain + melted snow a year
Less rain than 92% of U.S. towns
33 in
Snow in a normal winter
More snow than 61% of U.S. towns
68 days
With rain or snow (0.01"+)

Rain + melted snow by month

Inches of water
3.2"

Snowfall by month

Inches of snow
7.3"
Frost & the growing season

About 145 frost-free days a year

In half of years the last 32° night comes by May 9 and the first one by October 1. That leaves about 145 frost-free days for gardens, shorter than 85% of U.S. towns.

173
nights at or below 32° in a normal year
30
nights below 0° in a normal year
17
days that reach 90° in a normal year

Freezing nights by month

Average nights at or below 32°

90° days by month

Average days at 90° or more
Heating & cooling

Heating and cooling a home in Richardton

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Richardton, 94% of that work is heating and 6% is cooling, so the furnace matters far more than the air conditioner.

94%heating
8,359 heating degree daysMore heating than 90% of U.S. towns
507 cooling degree daysLess cooling than 76% of U.S. towns

Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.

Compared with other towns

How Richardton compares

Summer heat83° July high
Cooler than 67% of U.S. towns205th hottest of 1,711 North Dakota towns
Winter cold5° January low
Colder than 90% of U.S. towns101st mildest of 1,711 North Dakota towns
Precipitation17" a year
Drier than 92% of U.S. towns280th driest of 1,711 North Dakota towns
Snow33" a winter
Snowier than 61% of U.S. towns10th least snowy of 1,453 North Dakota towns
Growing season145 frost-free days
Shorter than 85% of U.S. towns181st longest of 1,688 North Dakota towns

Compared with every U.S. town and city on TownTapestry, each counted once.

Then and now

Warmer than it used to be

+1.2°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Richardton averaged 1.2° warmer than the 1900s. The biggest change is in January (+4.1°). The shift is larger than in 51% of U.S. towns.

❄️ Winter+3.0° now 17°, was 14°
🌷 Spring+0.7° now 41°, was 41°
☀️ Summer+0.5° now 67°, was 67°
🍂 Fall+0.7° now 44°, was 43°

Change by month1991–2020 average minus 1901–2000 average, at Richardton’s spot on NOAA’s grid

Year to year

How much a month can swing

A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from -2° to 30°. June is the most reliable, staying within 9°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Richardton’s climate

What is the coldest month in Richardton?

January, with a typical high of 24° and a low of 5°.

What is the hottest month in Richardton?

July, with a typical high of 83° and a low of 56°. About 17 days a year reach 90°.

How much snow does Richardton get?

About 33 inches in a normal winter, most of it in March.

When is the first frost in Richardton?

In half of years the first 32° night comes by October 1, and the last spring frost by May 9.

What is the rainiest month in Richardton?

June, with 3.2 inches of rain and melted snow. The year totals 17 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Richardton itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Richardton Abbey, ND (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

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