Wister, Oklahoma climate: Normal weather by month, frost dates and records
Wister's normal year runs from 27°F January nights to 93°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.1°C, January lows of −3°C, July highs of 34°C.
- NOAA stationWister (3 mi S)
- Station IDUSC00349724
- Location34.94°N 94.70°W
- Elevation525 ft (160 m)
- Population1,061
On October 23, the normal high in Wister is 73°F and the normal low 47°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Wister.
- Jan 51° 27°
- Feb 56° 32°
- Mar 63° 39°
- Apr 72° 47°
- May 79° 59°
- Jun 88° 68°
- Jul 93° 71°
- Aug 93° 69°
- Sep 86° 61°
- Oct 76° 50°
- Nov 64° 39°
- Dec 53° 31°
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 Wister each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 27°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 51°F | 27°F | 38.9°F | – | <1 | 22 | 10 h |
| February | 56°F | 32°F | 43.7°F | – | <1 | 16 | 10 h 50 min |
| March | 63°F | 39°F | 51.0°F | – | <1 | 9 | 11 h 50 min |
| April | 72°F | 47°F | 59.5°F | – | <1 | 2 | 13 h |
| May | 79°F | 59°F | 68.7°F | – | 2 | <1 | 14 h |
| June | 88°F | 68°F | 77.8°F | – | 13 | <1 | 14 h 30 min |
| July | 93°F | 71°F | 81.8°F | – | 23 | <1 | 14 h 20 min |
| August | 93°F | 69°F | 81.0°F | – | 21 | <1 | 13 h 30 min |
| September | 86°F | 61°F | 73.3°F | – | 11 | <1 | 12 h 30 min |
| October | 76°F | 50°F | 62.7°F | – | 2 | 1 | 11 h 20 min |
| November | 64°F | 39°F | 51.5°F | – | <1 | 8 | 10 h 20 min |
| December | 53°F | 31°F | 41.6°F | – | <1 | 18 | 9 h 50 min |
| Year (annual) | 73°F | 49°F | 61.0°F | – | 71 | 76 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 10°C | −3°C | 3.8°C |
| February | 13°C | 0°C | 6.5°C |
| March | 17°C | 4°C | 10.6°C |
| April | 22°C | 8°C | 15.3°C |
| May | 26°C | 15°C | 20.4°C |
| June | 31°C | 20°C | 25.4°C |
| July | 34°C | 21°C | 27.7°C |
| August | 34°C | 21°C | 27.2°C |
| September | 30°C | 16°C | 22.9°C |
| October | 24°C | 10°C | 17.1°C |
| November | 18°C | 4°C | 10.8°C |
| December | 11°C | −1°C | 5.3°C |
NOAA publishes no 1991-2020 snowfall normal for this station, and no record within 25 miles keeps one, so snow is left out here rather than estimated.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00349724; 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 Wister?
Normal highs sit between 65°F and 85°F in April, May and October.
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 USC00349724.
When is the last frost in Wister?
In Wister, the last spring frost (32°F) comes after April 6 in half of years and after April 24 in one year in ten; the first autumn frost comes before November 2 in half of years and before October 18 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
- April 61 year in 10 after April 24; 9 in 10 after March 18
- First autumn frost, half of years before
- November 21 year in 10 before October 18; 9 in 10 before November 17
NOAA puts the median frost-free season at 210 days, and the season without a hard freeze (28°F) at 231 days.
A hard freeze (28°F) comes after March 25 in half of springs and before November 12 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Wister in zone 7b in ZIP code 74940, the nearest ZIP area.
Frost dates for every NOAA station in Oklahoma · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00349724; 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 Wister?
In a normal year in Wister, 71 days a year reach 90°F (11 of them 100°F or more) and 76 nights fall to 32°F or colder.
- Days at 90°F or more
- 71a normal year
- Days at 100°F or more
- 11a normal year
- Nights at 32°F or colder
- 76a normal year
- Days that stay below freezing
- 4high of 32°F or less
The highest temperature in this station's record (since 1946) is 114°F, on August 4, 2011; the lowest is −13°F, on February 2, 1951.
The wettest calendar year on that record is 1968, with 58.21 in; the snowiest season is 1976–77, with 13.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00349724; records: ACIS (NOAA Regional Climate Centers), station USC00349724. Records use complete months only; a month missing more than three days is left out.
How sunny is Wister?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Wister, 4.4 kWh per square metre a day. August is the sunniest month (82%) and February the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.6 |
| February | 64% | 3.0 |
| March | 68% | 4.1 |
| April | 71% | 5.1 |
| May | 72% | 5.6 |
| June | 80% | 6.4 |
| July | 82% | 6.3 |
| August | 82% | 5.8 |
| September | 80% | 4.9 |
| October | 76% | 3.8 |
| November | 72% | 2.8 |
| December | 69% | 2.3 |
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 Wister need?
A normal year in Wister brings 3,405 heating degree days, 37% fewer than the median U.S. place (5,373), and 1,967 cooling degree days, 2.2 times the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,156 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 807 | 0 |
| February | 598 | 2 |
| March | 445 | 10 |
| April | 202 | 39 |
| May | 48 | 164 |
| June | 1 | 384 |
| July | 0 | 521 |
| August | 0 | 496 |
| September | 15 | 264 |
| October | 150 | 77 |
| November | 413 | 10 |
| December | 726 | 1 |
| Year (annual) | 3,405 | 1,967 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00349724. 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 Wister been warmer than normal lately?
2025 averaged 63.4°F, 2.4°F above the 1991-2020 normal of 61.0°F. 3 of the 3 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal |
|---|---|---|
| 2022 | 62.4°F | +1.4°F |
| 2024 | 64.7°F | +3.7°F |
| 2025 | 63.4°F | +2.4°F |
Source: observed years: ACIS, station USC00349724. A year counts only with all twelve months complete.
How does Wister's climate compare?
Wister is warmer than 86 of the other 133 places with their own NOAA record in Oklahoma. Across the 7,247 U.S. stations with normals, its annual mean of 61.0°F is warmer than 77%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Wister share this climate record?
10 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.
- Poteau, OK9,111 people · 10 mi NE
- Heavener, OK3,057 people · 6 mi SE
- Shady Point, OK1,000 people · 13 mi N
- Howe, OK639 people · 4 mi E
- Hartford, AR498 people · 19 mi E
- Fanshawe, OK316 people · 12 mi W
- Midland, AR225 people · 22 mi NE
- Whitesboro, OK182 people · 19 mi SW
- Monroe, OK126 people · 11 mi E
- Hodgen, OK45 people · 8 mi SE
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 Wister's climate
What is the coldest month in Wister?
January, with a normal high of 51°F and a normal low of 27°F. The warmest is July (93°F by day, 71°F at night).
What plant hardiness zone is Wister in?
The USDA's 2023 map puts Wister in zone 7b in ZIP code 74940, the nearest ZIP area.
How late can frost come in Wister?
In half of years the last 32°F night comes after April 6; in one year in ten it comes after April 24. Waiting until April 24 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oklahoma climateThe statewide normals and every place in the state
- McCurtain (1 mi SE), OK21 miles from this station, 63.0°F a year
- Wilburton, OK27 miles from this station, 61.8°F a year
- Smithville, OK33 miles from this station, 59.3°F a year
- Fort Smith, AR33 miles from this station, 62.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made