Climate · Turkey Valley

Turkey Valley, SD climate

Turkey Valley has cold, snowy winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 10°, and about 39 inches of snow falls in a normal winter.

NOAA 1991-2020 climate normals Updated once a decade
July high
84°
651st coolest of 1,384 South Dakota towns
January low
10°
261st mildest of 1,384 South Dakota towns
Rain + melted snow
28 in
108th wettest of 1,384 South Dakota towns
Snow a winter
39 in
589th least snowy of 1,367 South Dakota towns
A normal year

What a year in Turkey Valley feels like

Winter

30° / 13°
Typical high / low · 13 days with an inch or more of snow

Spring

58° / 36°
Typical high / low · Last frost around May 1

Summer

82° / 61°
Typical high / low · 27 days reach 90° in a normal year

Fall

60° / 38°
Typical high / low · First frost around Oct 4
Best months to be outsideMayJunAugSepHighs of 62–84° and lows of 40° or more
Month by month

Turkey Valley 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
January27°10°0.6" 7.1"520 10° – 33°
February33°14°0.8" 7.4"515 11° – 34°
March45°25°1.5" 6.0"68 26° – 51°
April59°36°3.1" 4.0"82 38° – 53°
May70°47°3.7" 0.3"110 53° – 65°
June80°58°4.1" 0100 65° – 74°
July84°63°3.1" 070 66° – 81°
August82°61°3.5" 080 66° – 75°
September75°52°3.0" 060 56° – 69°
October61°39°2.4" 1.2"70 42° – 54°
November45°25°1.2" 5.4"54 25° – 45°
December31°15°0.9" 7.8"517 10° – 28°
Year58°37°27.7"39.2"8265

“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 Turkey Valley

Turkey Valley gets 28 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 82 days a year. Snow covers the ground about 65 days of the year.

28 in
Rain + melted snow a year
Less rain than 79% of U.S. towns
39 in
Snow in a normal winter
More snow than 69% of U.S. towns
65 days
With 1"+ of snow on the ground
More than 75% of U.S. towns

Rain + melted snow by month

Inches of water
4.1"

Snowfall by month

Inches of snow
7.8"
Frost & the growing season

About 156 frost-free days a year

In half of years the last 32° night comes by May 1 and the first one by October 4. That leaves about 156 frost-free days for gardens, shorter than 75% of U.S. towns.

155
nights at or below 32° in a normal year
20
nights below 0° in a normal year
27
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 Turkey Valley

Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Turkey Valley, 89% of that work is heating and 11% is cooling, so the furnace matters far more than the air conditioner.

89%heating
6,980 heating degree daysMore heating than 73% of U.S. towns
892 cooling degree daysMore cooling than 54% 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 Turkey Valley

Turkey Valley and its neighbors

Turkey Valley borders 5 towns with climate data. January nights across them vary by 1.4°. Spring Valley has the coldest January nights (9°) and Daneville the hottest July afternoons (85°). Turkey Valley’s January low is 10° and its July high 84°.

Star: January low 10°, July high 85°Walshtown: January low 10°, July high 86°Salem: January low 10°, July high 84°Jamesville: January low 9°, July high 86°Volin: January low 10°, July high 86°Norway: January low 9°, July high 85°Swan Lake: January low 9°, July high 85°Viborg: January low 9°, July high 85°Centerville: January low 9°, July high 85°Irene: January low 10°, July high 85°Mayfield: January low 10°, July high 85°Marindahl: January low 10°, July high 84°Spring Valley: January low 9°, July high 85°Daneville: January low 9°, July high 85°Turkey Valley: January low 10°, July high 84° Turkey ValleyIreneMayfieldMarindahlSpring ValleyDaneville
ColderMilder9° to 10°
Spring Valley9.0° −1.1°
Daneville9.2° −0.9°
Irene9.9° −0.2°
Mayfield9.9° −0.2°
Turkey Valley10.1°
Marindahl10.4° +0.3°

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

Compared with other towns

How Turkey Valley compares

Summer heat84° July high
Cooler than 53% of U.S. towns651st coolest of 1,384 South Dakota towns
Winter cold10° January low
Colder than 81% of U.S. towns261st mildest of 1,384 South Dakota towns
Precipitation28" a year
Drier than 79% of U.S. towns108th wettest of 1,384 South Dakota towns
Snow39" a winter
Snowier than 69% of U.S. towns589th least snowy of 1,367 South Dakota towns
Growing season156 frost-free days
Shorter than 75% of U.S. towns279th longest of 1,383 South Dakota towns

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

Then and now

Warmer than it used to be

+1.0°1991–2020 average vs. the 20th century (1901–2000)

The last 30 years in Turkey Valley averaged 1.0° warmer than the 1900s. The biggest change is in January (+2.8°). The shift is smaller than in 67% of U.S. towns.

❄️ Winter+2.5° now 22°, was 19°
🌷 Spring+0.9° now 47°, was 46°
☀️ Summer+0.2° now 71°, was 71°
🍂 Fall+0.6° now 49°, was 49°

Change by month1991–2020 average minus 1901–2000 average, at Turkey Valley’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. March swings the most: between 1991 and 2020 its average temperature ranged from 26° to 51°. August is the most reliable, staying within 9°.

Coldest to warmest month in 30 yearsNormal
Questions

Common questions about Turkey Valley’s climate

What is the coldest month in Turkey Valley?

January, with a typical high of 27° and a low of 10°.

What is the hottest month in Turkey Valley?

July, with a typical high of 84° and a low of 63°. About 27 days a year reach 90°.

How much snow does Turkey Valley get?

About 39 inches in a normal winter, most of it in December.

When is the first frost in Turkey Valley?

In half of years the first 32° night comes by October 4, and the last spring frost by May 1.

What is the rainiest month in Turkey Valley?

June, with 4.1 inches of rain and melted snow. The year totals 28 inches.

Temperatures and rainfall come from NOAA’s gridded climate normals for Turkey Valley itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Menno, SD (19 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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