Climate · Rat Lake

Rat Lake, ND climate

Rat Lake has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 81°, a January night drops to 2°, and about 47 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
81°
636th hottest of 1,711 North Dakota towns
January low
2°
302nd mildest of 1,711 North Dakota towns
Rain + melted snow
17 in
315th driest of 1,711 North Dakota towns
Snow a winter
47 in
446th snowiest of 1,453 North Dakota towns
A normal year

What a year in Rat Lake feels like

Winter

23° / 5°
Typical high / low · 19 days with an inch or more of snow

Spring

52° / 28°
Typical high / low · Last frost around May 17

Summer

79° / 53°
Typical high / low · 10 days reach 90° in a normal year

Fall

54° / 31°
Typical high / low · First frost around Sep 23
Best months to be outsideJunJulAugSepHighs of 62–84° and lows of 40° or more
Month by month

Rat Lake weather by month

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

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January20°2°0.5" 7.6"929 -1° – 27°
February25°6°0.4" 7.1"825 -5° – 29°
March38°17°0.6" 7.5"821 14° – 40°
April54°29°1.1" 4.6"96 32° – 49°
May66°40°2.4" 1.3"111 48° – 59°
June75°50°3.3" 0140 57° – 68°
July81°55°2.9" 0110 61° – 74°
August81°53°1.9" 090 61° – 72°
September71°43°1.6" 0.2"90 52° – 63°
October54°31°1.2" 3.8"93 34° – 48°
November36°18°0.6" 5.1"813 15° – 39°
December24°7°0.6" 10.2"927 4° – 25°
Year52°29°17.1"47.4"114125

“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 Rat Lake

Rat Lake gets 17 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 114 days a year. Snow covers the ground about 125 days of the year.

17 in
Rain + melted snow a year
Less rain than 92% of U.S. towns
47 in
Snow in a normal winter
More snow than 79% of U.S. towns
125 days
With 1"+ of snow on the ground
More than 97% of U.S. towns

Rain + melted snow by month

Inches of water
3.3"

Snowfall by month

Inches of snow
10"
Frost & the growing season

About 127 frost-free days a year

In half of years the last 32° night comes by May 17 and the first one by September 23. That leaves about 127 frost-free days for gardens, shorter than 96% of U.S. towns.

202
nights at or below 32° in a normal year
49
nights below 0° in a normal year
10
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 Rat Lake

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Rat Lake, 97% of that work is heating and 3% is cooling, so the furnace matters far more than the air conditioner.

97%heating
9,810 heating degree daysMore heating than 99% of U.S. towns
272 cooling degree daysLess cooling than 93% 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.

Around Rat Lake

Rat Lake and its neighbors

Rat Lake borders 2 towns with climate data. January nights across them vary by 0.4°. Brookbank has both the coldest January nights (2°) and the hottest July afternoons (81°). Rat Lake’s January low is 2° and its July high 81°.

Manitou: January low 1°, July high 81°Alger: January low 1°, July high 81°Sikes: January low 1°, July high 81°Knife River: January low 2°, July high 82°Debing: January low 2°, July high 81°Brookbank: January low 2°, July high 81°Rat Lake: January low 2°, July high 81° Rat LakeDebingBrookbank
ColderMilder1° to 2°
Brookbank1.6° −0.4°
Debing1.7° −0.3°
Rat Lake2.0°

Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.

Compared with other towns

How Rat Lake compares

Summer heat81° July high
Cooler than 80% of U.S. towns636th hottest of 1,711 North Dakota towns
Winter cold2° January low
Colder than 94% of U.S. towns302nd mildest of 1,711 North Dakota towns
Precipitation17" a year
Drier than 92% of U.S. towns315th driest of 1,711 North Dakota towns
Snow47" a winter
Snowier than 79% of U.S. towns446th snowiest of 1,453 North Dakota towns
Growing season127 frost-free days
Shorter than 96% of U.S. towns257th shortest 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

+1.4°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Rat Lake averaged 1.4° warmer than the 1900s. The biggest change is in January (+4.2°). The shift is larger than in 61% of U.S. towns.

❄️ Winter+3.2° now 14°, was 11°
🌷 Spring+0.9° now 40°, was 39°
☀️ Summer+0.6° now 66°, was 65°
🍂 Fall+0.7° now 42°, was 42°

Change by month1991–2020 average minus 1901–2000 average, at Rat Lake’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 -5° to 29°. June is the most reliable, staying within 10°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Rat Lake’s climate

What is the coldest month in Rat Lake?

January, with a typical high of 20° and a low of 2°.

What is the hottest month in Rat Lake?

July, with a typical high of 81° and a low of 55°. About 10 days a year reach 90°.

How much snow does Rat Lake get?

About 47 inches in a normal winter, most of it in December.

When is the first frost in Rat Lake?

In half of years the first 32° night comes by September 23, and the last spring frost by May 17.

What is the rainiest month in Rat Lake?

June, with 3.3 inches of rain and melted snow. The year totals 17 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Rat Lake itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Stanley 3 Nnw, ND (18 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

The porch light’s on

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