Turton, South Dakota climate: Normal weather by month, frost dates and records
Turton's normal year runs from 4°F January nights to 84°F July afternoons, with 23.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.8°C, January lows of −15°C, July highs of 29°C, 602 mm of precipitation a year.
- NOAA stationTurton
- Station IDUSC00398420
- Location45.05°N 98.10°W
- Elevation1,335 ft (407 m)
- Population52
On October 24, the normal high in Turton is 53°F and the normal low 31°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Turton.
- Jan 22° 4°
- Feb 27° 7°
- Mar 41° 20°
- Apr 56° 32°
- May 69° 45°
- Jun 79° 56°
- Jul 84° 61°
- Aug 83° 58°
- Sep 75° 49°
- Oct 58° 35°
- Nov 42° 21°
- Dec 27° 10°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Turton each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 4°F. The most precipitation falls in June (4.24 in), the least in January (0.59 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 22°F | 4°F | 13.2°F | 0.59 | – | <1 | 31 | 9 h 10 min |
| February | 27°F | 7°F | 17.1°F | 0.63 | – | <1 | 28 | 10 h 20 min |
| March | 41°F | 20°F | 30.4°F | 1.01 | – | <1 | 27 | 11 h 50 min |
| April | 56°F | 32°F | 44.1°F | 2.31 | – | <1 | 17 | 13 h 30 min |
| May | 69°F | 45°F | 56.6°F | 3.23 | – | 1 | 4 | 14 h 50 min |
| June | 79°F | 56°F | 67.6°F | 4.24 | – | 3 | <1 | 15 h 40 min |
| July | 84°F | 61°F | 72.7°F | 3.31 | – | 7 | <1 | 15 h 20 min |
| August | 83°F | 58°F | 70.2°F | 2.46 | – | 5 | <1 | 14 h 10 min |
| September | 75°F | 49°F | 61.6°F | 2.38 | – | 2 | 1 | 12 h 40 min |
| October | 58°F | 35°F | 46.8°F | 2.06 | – | <1 | 14 | 11 h |
| November | 42°F | 21°F | 31.4°F | 0.74 | – | <1 | 26 | 9 h 40 min |
| December | 27°F | 10°F | 18.6°F | 0.73 | – | <1 | 31 | 8 h 50 min |
| Year (annual) | 55°F | 33°F | 44.2°F | 23.69 | – | 18 | 179 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | −5°C | −15°C | −10.4°C | 15 mm |
| February | −3°C | −14°C | −8.3°C | 16 mm |
| March | 5°C | −7°C | −0.9°C | 26 mm |
| April | 13°C | 0°C | 6.7°C | 59 mm |
| May | 20°C | 7°C | 13.7°C | 82 mm |
| June | 26°C | 13°C | 19.8°C | 108 mm |
| July | 29°C | 16°C | 22.6°C | 84 mm |
| August | 28°C | 14°C | 21.2°C | 62 mm |
| September | 24°C | 9°C | 16.4°C | 60 mm |
| October | 15°C | 2°C | 8.2°C | 52 mm |
| November | 5°C | −6°C | −0.3°C | 19 mm |
| December | −3°C | −12°C | −7.4°C | 19 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Conde (7 miles away), gets 28 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00398420; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Turton?
Normal highs sit between 65°F and 85°F in May, June, July, August and September.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00398420.
When is the last frost in Turton?
In Turton, the last spring frost (32°F) comes after May 7 in half of years and after May 22 in one year in ten; the first autumn frost comes before October 3 in half of years and before September 21 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 71 year in 10 after May 22; 9 in 10 after April 23
- First autumn frost, half of years before
- October 31 year in 10 before September 21; 9 in 10 before October 15
NOAA puts the median frost-free season at 149 days, and the season without a hard freeze (28°F) at 167 days.
A hard freeze (28°F) comes after April 28 in half of springs and before October 12 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Turton in zone 4b in ZIP code 57477, the nearest ZIP area.
Frost dates for every NOAA station in South Dakota · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00398420; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Turton?
In a normal year in Turton, 18 days a year reach 90°F (1 of them 100°F or more) and 179 nights fall to 32°F or colder.
- Days at 90°F or more
- 18a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 179a normal year
- Days that stay below freezing
- 81high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00398420.
How sunny is Turton?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Turton, 4.1 kWh per square metre a day. July is the sunniest month (85%) and December the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 79% | 1.9 |
| February | 81% | 3.0 |
| March | 75% | 4.0 |
| April | 73% | 5.0 |
| May | 73% | 5.8 |
| June | 79% | 6.5 |
| July | 85% | 6.8 |
| August | 83% | 5.6 |
| September | 79% | 4.3 |
| October | 72% | 2.8 |
| November | 73% | 1.9 |
| December | 70% | 1.4 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Turton need?
A normal year in Turton brings 8,208 heating degree days, 53% more than the median U.S. place (5,373), and 664 cooling degree days, 27% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,620 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,605 | 0 |
| February | 1,341 | 0 |
| March | 1,075 | 1 |
| April | 631 | 2 |
| May | 291 | 30 |
| June | 53 | 131 |
| July | 9 | 246 |
| August | 26 | 187 |
| September | 163 | 62 |
| October | 568 | 6 |
| November | 1,008 | 0 |
| December | 1,438 | 0 |
| Year (annual) | 8,208 | 664 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00398420. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Turton been warmer than normal lately?
2022 averaged 43.5°F, 0.7°F below the 1991-2020 normal of 44.2°F. 1 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 47.1°F | +2.9°F | – |
| 2022 | 43.5°F | −0.7°F | – |
Source: observed years: ACIS, station USC00398420. A year counts only with all twelve months complete.
How does Turton's climate compare?
Turton is warmer than 29 of the other 99 places with their own NOAA record in South Dakota, and wetter than 56. Across the 7,247 U.S. stations with normals, its annual mean of 44.2°F is warmer than 16%.
In the Köppen classification computed from these normals, Turton is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Turton share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Doland, SD195 people · 11 mi S
- Camrose Colony, SD0 people · 10 mi SW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Turton's climate
What is the coldest month in Turton?
January, with a normal high of 22°F and a normal low of 4°F. The warmest is July (84°F by day, 61°F at night).
Does it snow in Turton?
Yes. NOAA publishes no 1991-2020 snowfall normal for Turton's NOAA station; the nearest record that keeps one, Conde (7 miles away), records 28 inches of snow in a normal year.
What is the rainiest month in Turton?
June, with 4.24 in of precipitation in a normal year; the driest is January with 0.59 in.
What plant hardiness zone is Turton in?
The USDA's 2023 map puts Turton in zone 4b in ZIP code 57477, the nearest ZIP area.
How late can frost come in Turton?
In half of years the last 32°F night comes after May 7; in one year in ten it comes after May 22. Waiting until May 22 leaves about a one-in-ten chance of a later frost.
Nearby and next
- South Dakota climateThe statewide normals and every place in the state
- Conde, SD7 miles from this station, 43.6°F a year
- Clark, SD21 miles from this station, 43.0°F a year
- Redfield, SD25 miles from this station, 44.0°F a year
- Mellette, SD25 miles from this station, 42.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made