Oglala, South Dakota climate: Normal weather by month, frost dates and records
Oglala's normal year runs from 14°F January nights to 88°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.4°C, January lows of −10°C, July highs of 31°C.
- NOAA stationOglala (1 mi S)
- Station IDUSC00396227
- Location43.17°N 102.75°W
- Elevation2,995 ft (913 m)
- Population (census place)1,601
On October 22, the normal high in Oglala is 60°F and the normal low 33°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Oglala.
- Jan 37° 14°
- Feb 41° 17°
- Mar 51° 25°
- Apr 60° 34°
- May 69° 44°
- Jun 80° 54°
- Jul 88° 61°
- Aug 88° 58°
- Sep 78° 49°
- Oct 63° 36°
- Nov 49° 25°
- Dec 39° 16°
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 Oglala each month?
July is the warmest month, with normal highs of 88°F; January the coldest, with normal lows of 14°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 37°F | 14°F | 25.5°F | – | <1 | 30 | 9 h 20 min |
| February | 41°F | 17°F | 28.8°F | – | <1 | 27 | 10 h 30 min |
| March | 51°F | 25°F | 38.3°F | – | <1 | 25 | 11 h 50 min |
| April | 60°F | 34°F | 46.6°F | – | <1 | 12 | 13 h 20 min |
| May | 69°F | 44°F | 56.6°F | – | 1 | 3 | 14 h 40 min |
| June | 80°F | 54°F | 67.2°F | – | 5 | <1 | 15 h 20 min |
| July | 88°F | 61°F | 74.6°F | – | 17 | <1 | 15 h 10 min |
| August | 88°F | 58°F | 73.1°F | – | 14 | <1 | 14 h |
| September | 78°F | 49°F | 63.3°F | – | 6 | 1 | 12 h 30 min |
| October | 63°F | 36°F | 49.2°F | – | <1 | 11 | 11 h 10 min |
| November | 49°F | 25°F | 37.1°F | – | <1 | 24 | 9 h 50 min |
| December | 39°F | 16°F | 27.3°F | – | <1 | 30 | 9 h |
| Year (annual) | 62°F | 36°F | 49.0°F | – | 43 | 162 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 3°C | −10°C | −3.6°C |
| February | 5°C | −8°C | −1.8°C |
| March | 11°C | −4°C | 3.5°C |
| April | 15°C | 1°C | 8.1°C |
| May | 21°C | 7°C | 13.7°C |
| June | 27°C | 12°C | 19.6°C |
| July | 31°C | 16°C | 23.7°C |
| August | 31°C | 15°C | 22.8°C |
| September | 26°C | 9°C | 17.4°C |
| October | 17°C | 2°C | 9.6°C |
| November | 10°C | −4°C | 2.8°C |
| December | 4°C | −9°C | −2.6°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Oelrichs (25 miles away), gets 44 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00396227; 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 Oglala?
Normal highs sit between 65°F and 85°F in May, June 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 USC00396227.
When is the last frost in Oglala?
In Oglala, the last spring frost (32°F) comes after May 7 in half of years and after May 21 in one year in ten; the first autumn frost comes before October 4 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 21; 9 in 10 after April 24
- First autumn frost, half of years before
- October 41 year in 10 before September 21; 9 in 10 before October 19
NOAA puts the median frost-free season at 149 days, and the season without a hard freeze (28°F) at 169 days.
A hard freeze (28°F) comes after April 27 in half of springs and before October 16 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Oglala in zone 5a in ZIP code 57764, 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 USC00396227; 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 Oglala?
In a normal year in Oglala, 43 days a year reach 90°F (8 of them 100°F or more) and 162 nights fall to 32°F or colder.
- Days at 90°F or more
- 43a normal year
- Days at 100°F or more
- 8a normal year
- Nights at 32°F or colder
- 162a normal year
- Days that stay below freezing
- 35high of 32°F or less
Source: NOAA NCEI 1991-2020 annual normals, station USC00396227.
How sunny is Oglala?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Oglala, 4.4 kWh per square metre a day. July is the sunniest month (87%) and April the cloudiest (73%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 76% | 2.0 |
| February | 75% | 2.9 |
| March | 74% | 4.1 |
| April | 73% | 5.2 |
| May | 75% | 6.1 |
| June | 82% | 7.0 |
| July | 87% | 7.1 |
| August | 86% | 6.1 |
| September | 83% | 4.8 |
| October | 76% | 3.2 |
| November | 77% | 2.2 |
| December | 74% | 1.7 |
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 Oglala need?
A normal year in Oglala brings 6,623 heating degree days, 23% more than the median U.S. place (5,373), and 815 cooling degree days, 10% 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 2,874 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,224 | 0 |
| February | 1,015 | 0 |
| March | 826 | 0 |
| April | 553 | 1 |
| May | 281 | 22 |
| June | 63 | 129 |
| July | 7 | 304 |
| August | 16 | 265 |
| September | 138 | 87 |
| October | 494 | 5 |
| November | 839 | 0 |
| December | 1,167 | 0 |
| Year (annual) | 6,623 | 815 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00396227. 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.
How does Oglala's climate compare?
Oglala is warmer than 95 of the other 99 places with their own NOAA record in South Dakota. Across the 7,247 U.S. stations with normals, its annual mean of 49.0°F is warmer than 36%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Questions about Oglala's climate
What is the coldest month in Oglala?
January, with a normal high of 37°F and a normal low of 14°F. The warmest is July (88°F by day, 61°F at night).
Does it snow in Oglala?
Yes. NOAA publishes no 1991-2020 snowfall normal for Oglala's NOAA station; the nearest record that keeps one, Oelrichs (25 miles away), records 44 inches of snow in a normal year.
What plant hardiness zone is Oglala in?
The USDA's 2023 map puts Oglala in zone 5a in ZIP code 57764, the nearest ZIP area.
How late can frost come in Oglala?
In half of years the last 32°F night comes after May 7; in one year in ten it comes after May 21. Waiting until May 21 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
- Pine Ridge, SD16 miles from this station, 47.8°F a year
- Manderson (3 mi NE), SD17 miles from this station, 48.3°F a year
- Porcupine (11 mi N), SD24 miles from this station, 46.9°F a year
- Oelrichs, SD25 miles from this station, 47.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made