Seminole, Oklahoma climate: Normal weather by month, frost dates and records
Seminole's normal year runs from 26°F January nights to 95°F July afternoons, with 43.2 inches of precipitation and 4 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.2°C, January lows of −3°C, July highs of 35°C, 1,097 mm of precipitation a year.
- NOAA stationSeminole
- Station IDUSC00348042
- Location35.23°N 96.65°W
- Elevation924 ft (282 m)
- Population7,264
On October 23, the normal high in Seminole is 74°F and the normal low 46°F, and the chance of measurable rain or snow is 20%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Seminole.
- Jan 52° 26°
- Feb 57° 30°
- Mar 65° 38°
- Apr 74° 47°
- May 81° 58°
- Jun 89° 66°
- Jul 95° 71°
- Aug 95° 69°
- Sep 87° 61°
- Oct 76° 49°
- Nov 64° 38°
- Dec 54° 29°
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 Seminole each month?
July is the warmest month, with normal highs of 95°F; January the coldest, with normal lows of 26°F. The most precipitation falls in May (5.39 in), the least in January (1.91 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 52°F | 26°F | 39.0°F | 1.91 | 1.9 | 5 | <1 | 23 | 10 h |
| February | 57°F | 30°F | 43.3°F | 2.40 | 0.2 | 5 | <1 | 16 | 10 h 50 min |
| March | 65°F | 38°F | 51.6°F | 2.89 | 0.6 | 7 | <1 | 8 | 11 h 50 min |
| April | 74°F | 47°F | 60.2°F | 4.50 | 0.0 | 7 | <1 | 1 | 13 h |
| May | 81°F | 58°F | 69.3°F | 5.39 | 0.0 | 9 | 3 | <1 | 14 h |
| June | 89°F | 66°F | 77.7°F | 4.84 | 0.0 | 7 | 15 | <1 | 14 h 30 min |
| July | 95°F | 71°F | 82.8°F | 3.74 | 0.0 | 6 | 25 | <1 | 14 h 20 min |
| August | 95°F | 69°F | 82.0°F | 3.59 | 0.0 | 5 | 25 | <1 | 13 h 30 min |
| September | 87°F | 61°F | 73.9°F | 4.81 | 0.0 | 7 | 11 | <1 | 12 h 30 min |
| October | 76°F | 49°F | 62.5°F | 4.09 | 0.0 | 6 | 1 | 1 | 11 h 20 min |
| November | 64°F | 38°F | 50.6°F | 2.66 | 0.1 | 6 | <1 | 10 | 10 h 20 min |
| December | 54°F | 29°F | 41.5°F | 2.37 | 1.6 | 5 | <1 | 19 | 9 h 50 min |
| Year (annual) | 74°F | 49°F | 61.2°F | 43.19 | 4.4 | 74 | 82 | 79 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 11°C | −3°C | 3.9°C | 49 mm | 5 cm |
| February | 14°C | −1°C | 6.3°C | 61 mm | 1 cm |
| March | 18°C | 3°C | 10.9°C | 73 mm | 2 cm |
| April | 23°C | 8°C | 15.7°C | 114 mm | 0 cm |
| May | 27°C | 14°C | 20.7°C | 137 mm | 0 cm |
| June | 32°C | 19°C | 25.4°C | 123 mm | 0 cm |
| July | 35°C | 22°C | 28.2°C | 95 mm | 0 cm |
| August | 35°C | 21°C | 27.8°C | 91 mm | 0 cm |
| September | 30°C | 16°C | 23.3°C | 122 mm | 0 cm |
| October | 24°C | 9°C | 16.9°C | 104 mm | 0 cm |
| November | 18°C | 3°C | 10.3°C | 68 mm | 0 cm |
| December | 12°C | −1°C | 5.3°C | 60 mm | 4 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00348042; 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 Seminole?
Normal highs sit between 65°F and 85°F in March, April, May and October. Of those, October has the fewest days with rain (6).
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 USC00348042.
When is the last frost in Seminole?
In Seminole, the last spring frost (32°F) comes after April 5 in half of years and after April 22 in one year in ten; the first autumn frost comes before November 1 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 51 year in 10 after April 22; 9 in 10 after March 18
- First autumn frost, half of years before
- November 11 year in 10 before October 18; 9 in 10 before November 15
NOAA puts the median frost-free season at 210 days, and the season without a hard freeze (28°F) at 232 days.
A hard freeze (28°F) comes after March 24 in half of springs and before November 9 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Seminole in zone 7b in ZIP code 74868, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Seminole's NOAA station is in zone 7b: the coldest night of a typical year reaches 8°F (21 complete years).
Frost dates for every NOAA station in Oklahoma · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00348042; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Seminole?
In a normal year in Seminole, 82 days a year reach 90°F (16 of them 100°F or more), 79 nights fall to 32°F or colder and 74 days bring measurable precipitation.
- Days at 90°F or more
- 82a normal year
- Days at 100°F or more
- 16a normal year
- Nights at 32°F or colder
- 79a normal year
- Days that stay below freezing
- 6high of 32°F or less
- Days with 0.01 inch of precipitation
- 74a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1933) is 114°F, on August 4, 2011; the lowest is −12°F, on January 4, 1947.
The wettest calendar year on that record is 2007, with 59.44 in; the snowiest season is 1977–78, with 20.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00348042; records: ACIS (NOAA Regional Climate Centers), station USC00348042. Records use complete months only; a month missing more than three days is left out.
How sunny is Seminole?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Seminole, 4.6 kWh per square metre a day. July is the sunniest month (87%) and February the cloudiest (71%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 2.7 |
| February | 71% | 3.3 |
| March | 72% | 4.3 |
| April | 74% | 5.3 |
| May | 74% | 5.7 |
| June | 84% | 6.7 |
| July | 87% | 6.7 |
| August | 85% | 6.0 |
| September | 82% | 5.0 |
| October | 78% | 3.8 |
| November | 77% | 2.9 |
| December | 72% | 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 Seminole need?
A normal year in Seminole brings 3,396 heating degree days, 37% fewer than the median U.S. place (5,373), and 2,042 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 5,242 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 806 | 0 |
| February | 609 | 1 |
| March | 427 | 10 |
| April | 188 | 44 |
| May | 38 | 171 |
| June | 1 | 382 |
| July | 0 | 552 |
| August | 0 | 527 |
| September | 14 | 281 |
| October | 146 | 68 |
| November | 439 | 5 |
| December | 729 | 1 |
| Year (annual) | 3,396 | 2,042 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00348042. 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 Seminole been warmer than normal lately?
Over 50 complete years from 1939 to 2015, the station's annual mean temperature rose at a fitted -3.2°F per century (−0.18°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Seminole's climate compare?
Seminole is warmer than 92 of the other 133 places with their own NOAA record in Oklahoma, and wetter than 71. Across the 7,247 U.S. stations with normals, its annual mean of 61.2°F is warmer than 78%.
In the Köppen classification computed from these normals, Seminole is Cfa: temperate, 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 Seminole share this climate record?
5 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.
- Maud, OK868 people · 10 mi SW
- Bowlegs, OK349 people · 6 mi S
- Dixon, OK170 people · 9 mi SE
- St. Louis, OK127 people · 16 mi SW
- Lima, OK67 people · 5 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.
What do Seminole's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Seminole. This page uses Seminole; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Seminole 4 mi SSW Mesonet USC00340990 | 5 mi SW | 958 ft | 60.8°F | 28°F | 92°F | – | – | April 1 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Seminole's climate
What is the coldest month in Seminole?
January, with a normal high of 52°F and a normal low of 26°F. The warmest is July (95°F by day, 71°F at night).
Does it snow in Seminole?
Yes: 4 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (1.9 inches).
What is the rainiest month in Seminole?
May, with 5.39 in of precipitation in a normal year; the driest is January with 1.91 in.
What plant hardiness zone is Seminole in?
The USDA's 2023 map puts Seminole in zone 7b in ZIP code 74868, the nearest ZIP area. By the same method at Seminole's NOAA station, the coldest night of a typical year reaches 8°F (21 years, 1991-2020): zone 7b.
How late can frost come in Seminole?
In half of years the last 32°F night comes after April 5; in one year in ten it comes after April 22. Waiting until April 22 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oklahoma climateThe statewide normals and every place in the state
- Shawnee, OK19 miles from this station, 60.9°F a year
- Holdenville, OK19 miles from this station, 61.1°F a year
- Okemah, OK24 miles from this station, 61.8°F a year
- Meeker, OK26 miles from this station, 59.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made