Climate · Turtle Lake

Turtle Lake, ND climate

Turtle Lake has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 2°, and about 44 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
82°
434th hottest of 1,711 North Dakota towns
January low
2°
450th mildest of 1,711 North Dakota towns
Rain + melted snow
18 in
452nd driest of 1,711 North Dakota towns
Snow a winter
44 in
719th snowiest of 1,453 North Dakota towns
A normal year

What a year in Turtle Lake feels like

Winter

23° / 5°
Typical high / low · 12 days with an inch or more of snow

Spring

52° / 29°
Typical high / low · Last frost around May 14

Summer

80° / 54°
Typical high / low · 15 days reach 90° in a normal year

Fall

55° / 32°
Typical high / low · First frost around Sep 26
Best months to be outsideMayJunJulAugSepHighs of 62–84° and lows of 40° or more
Month by month

Turtle Lake weather by month

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

MonthHighLowRain + meltSnowWet days30-yr range
January20°2°0.5" 10.5"3 -1° – 27°
February25°5°0.4" 6.5"3 -3° – 29°
March37°17°0.7" 5.7"4 16° – 41°
April54°29°1.2" 2.3"5 31° – 49°
May67°41°2.6" 0.6"9 48° – 61°
June76°52°3.5" 011 59° – 68°
July82°57°2.7" 08 62° – 74°
August82°54°2.0" 06 62° – 73°
September72°45°1.7" 06 52° – 64°
October55°32°1.3" 1.7"5 35° – 48°
November38°19°0.6" 8.9"3 16° – 40°
December25°8°0.6" 7.9"3 4° – 26°
Year53°30°17.7"44.1"65

“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 Turtle Lake

Turtle Lake gets 18 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 65 days a year.

18 in
Rain + melted snow a year
Less rain than 91% of U.S. towns
44 in
Snow in a normal winter
More snow than 75% of U.S. towns
65 days
With rain or snow (0.01"+)

Rain + melted snow by month

Inches of water
3.5"

Snowfall by month

Inches of snow
11"
Frost & the growing season

About 136 frost-free days a year

In half of years the last 32° night comes by May 14 and the first one by September 26. That leaves about 136 frost-free days for gardens, shorter than 92% of U.S. towns.

195
nights at or below 32° in a normal year
46
nights below 0° in a normal year
15
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 Turtle Lake

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Turtle Lake, 96% of that work is heating and 4% is cooling, so the furnace matters far more than the air conditioner.

96%heating
9,092 heating degree daysMore heating than 95% of U.S. towns
413 cooling degree daysLess cooling than 83% 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 Turtle Lake

Turtle Lake and its neighbors

Turtle Lake borders 1 town with climate data. January nights across them vary by 0.0°. Lake Williams has both the coldest January nights (2°) and the hottest July afternoons (82°). Turtle Lake’s January low is 2° and its July high 82°.

Wise: January low 2°, July high 82°Medicine Hill: January low 2°, July high 81°Lake Williams: January low 2°, July high 82°Turtle Lake: January low 2°, July high 82° Turtle LakeLake Williams
ColderMilder2° to 2°
Turtle Lake1.5°
Lake Williams1.5° same

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

Compared with other towns

How Turtle Lake compares

Summer heat82° July high
Cooler than 75% of U.S. towns434th hottest of 1,711 North Dakota towns
Winter cold2° January low
Colder than 95% of U.S. towns450th mildest of 1,711 North Dakota towns
Precipitation18" a year
Drier than 91% of U.S. towns452nd driest of 1,711 North Dakota towns
Snow44" a winter
Snowier than 75% of U.S. towns719th snowiest of 1,453 North Dakota towns
Growing season136 frost-free days
Shorter than 92% of U.S. towns783rd 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

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

The last 30 years in Turtle Lake averaged 1.4° warmer than the 1900s. The biggest change is in January (+4.4°). The shift is larger than in 62% of U.S. towns.

❄️ Winter+3.6° now 14°, was 11°
🌷 Spring+0.6° now 41°, was 40°
☀️ Summer+0.4° now 67°, was 67°
🍂 Fall+0.9° now 43°, was 42°

Change by month1991–2020 average minus 1901–2000 average, at Turtle 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 -3° to 29°. June is the most reliable, staying within 9°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Turtle Lake’s climate

What is the coldest month in Turtle Lake?

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

What is the hottest month in Turtle Lake?

July, with a typical high of 82° and a low of 57°. About 15 days a year reach 90°.

How much snow does Turtle Lake get?

About 44 inches in a normal winter, most of it in January.

When is the first frost in Turtle Lake?

In half of years the first 32° night comes by September 26, and the last spring frost by May 14.

What is the rainiest month in Turtle Lake?

June, with 3.5 inches of rain and melted snow. The year totals 18 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Turtle Lake itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Turtle Lake, ND (5 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.

The coffee’s on

Where to, neighbor?

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/15 · 2025-01-01