Okemah, Oklahoma climate: Normal weather by month, frost dates and records
Okemah's normal year runs from 30°F January nights to 93°F July afternoons, with 43.5 inches of precipitation and 5 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.6°C, January lows of −1°C, July highs of 34°C, 1,106 mm of precipitation a year.
- NOAA stationOkemah
- Station IDUSC00346638
- Location35.43°N 96.30°W
- Elevation935 ft (285 m)
- Population3,066
On October 23, the normal high in Okemah is 72°F and the normal low 50°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Okemah.
- Jan 50° 30°
- Feb 55° 34°
- Mar 65° 43°
- Apr 73° 51°
- May 80° 60°
- Jun 88° 68°
- Jul 93° 71°
- Aug 93° 70°
- Sep 85° 63°
- Oct 74° 52°
- Nov 61° 41°
- Dec 52° 33°
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 Okemah each month?
July is the warmest month, with normal highs of 93°F; January the coldest, with normal lows of 30°F. The most precipitation falls in May (5.72 in), the least in January (1.76 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 50°F | 30°F | 40.0°F | 1.76 | 2.9 | 6 | <1 | 17 | 10 h |
| February | 55°F | 34°F | 44.6°F | 2.14 | 0.4 | 6 | <1 | 10 | 10 h 50 min |
| March | 65°F | 43°F | 53.5°F | 3.20 | 0.6 | 8 | <1 | 4 | 11 h 50 min |
| April | 73°F | 51°F | 61.7°F | 4.41 | 0.0 | 7 | <1 | <1 | 13 h |
| May | 80°F | 60°F | 70.0°F | 5.72 | 0.0 | 9 | 3 | <1 | 14 h |
| June | 88°F | 68°F | 77.8°F | 5.22 | 0.0 | 9 | 13 | <1 | 14 h 30 min |
| July | 93°F | 71°F | 82.1°F | 3.28 | 0.0 | 6 | 25 | <1 | 14 h 20 min |
| August | 93°F | 70°F | 81.3°F | 3.33 | 0.0 | 6 | 24 | <1 | 13 h 30 min |
| September | 85°F | 63°F | 74.0°F | 4.85 | 0.0 | 7 | 9 | <1 | 12 h 30 min |
| October | 74°F | 52°F | 63.1°F | 3.92 | 0.0 | 7 | 1 | <1 | 11 h 20 min |
| November | 61°F | 41°F | 51.4°F | 3.08 | 0.3 | 6 | <1 | 5 | 10 h 20 min |
| December | 52°F | 33°F | 42.3°F | 2.62 | 0.8 | 6 | <1 | 14 | 9 h 50 min |
| Year (annual) | 72°F | 51°F | 61.8°F | 43.53 | 5.0 | 84 | 75 | 50 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 10°C | −1°C | 4.4°C | 45 mm | 7 cm |
| February | 13°C | 1°C | 7.0°C | 54 mm | 1 cm |
| March | 18°C | 6°C | 11.9°C | 81 mm | 2 cm |
| April | 23°C | 10°C | 16.5°C | 112 mm | 0 cm |
| May | 27°C | 16°C | 21.1°C | 145 mm | 0 cm |
| June | 31°C | 20°C | 25.4°C | 133 mm | 0 cm |
| July | 34°C | 22°C | 27.8°C | 83 mm | 0 cm |
| August | 34°C | 21°C | 27.4°C | 85 mm | 0 cm |
| September | 29°C | 17°C | 23.3°C | 123 mm | 0 cm |
| October | 23°C | 11°C | 17.3°C | 100 mm | 0 cm |
| November | 16°C | 5°C | 10.8°C | 78 mm | 1 cm |
| December | 11°C | 1°C | 5.7°C | 67 mm | 2 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00346638; 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 Okemah?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, April has the fewest days with rain (7).
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 USC00346638.
When is the last frost in Okemah?
In Okemah, the last spring frost (32°F) comes after March 24 in half of years and after April 10 in one year in ten; the first autumn frost comes before November 9 in half of years and before October 25 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
- March 241 year in 10 after April 10; 9 in 10 after March 5
- First autumn frost, half of years before
- November 91 year in 10 before October 25; 9 in 10 before November 26
NOAA puts the median frost-free season at 229 days, and the season without a hard freeze (28°F) at 254 days.
A hard freeze (28°F) comes after March 11 in half of springs and before November 20 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Okemah in zone 7b in ZIP code 74859, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Okemah's NOAA station is in zone 8a: the coldest night of a typical year reaches 10°F (18 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Oklahoma · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00346638; 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 Okemah?
In a normal year in Okemah, 75 days a year reach 90°F (15 of them 100°F or more), 50 nights fall to 32°F or colder and 84 days bring measurable precipitation.
- Days at 90°F or more
- 75a normal year
- Days at 100°F or more
- 15a normal year
- Nights at 32°F or colder
- 50a normal year
- Days that stay below freezing
- 5high of 32°F or less
- Days with 0.01 inch of precipitation
- 84a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1912) is 115°F, on August 10, 1936; the lowest is −10°F, on January 18, 1930.
The wettest calendar year on that record is 1992, with 64.94 in; the snowiest season is 1967–68, with 19.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00346638; records: ACIS (NOAA Regional Climate Centers), station USC00346638. Records use complete months only; a month missing more than three days is left out.
How sunny is Okemah?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Okemah, 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 Okemah need?
A normal year in Okemah brings 3,160 heating degree days, 41% fewer than the median U.S. place (5,373), and 2,033 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 5,353 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 775 | 0 |
| February | 573 | 2 |
| March | 369 | 14 |
| April | 149 | 51 |
| May | 29 | 183 |
| June | 1 | 385 |
| July | 0 | 532 |
| August | 0 | 504 |
| September | 12 | 283 |
| October | 132 | 73 |
| November | 415 | 7 |
| December | 704 | 0 |
| Year (annual) | 3,160 | 2,033 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00346638. 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 Okemah's climate compare?
Okemah is warmer than 108 of the other 133 places with their own NOAA record in Oklahoma, and wetter than 73. Across the 7,247 U.S. stations with normals, its annual mean of 61.8°F is warmer than 79%.
In the Köppen classification computed from these normals, Okemah 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 Okemah share this climate record?
12 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.
- Wetumka, OK1,127 people · 13 mi S
- Boley, OK1,085 people · 11 mi NW
- Weleetka, OK806 people · 11 mi SE
- Paden, OK423 people · 16 mi W
- Dustin, OK330 people · 19 mi SE
- Cromwell, OK235 people · 11 mi SW
- Castle, OK169 people · 6 mi NW
- Bearden, OK136 people · 6 mi SW
- IXL, OK60 people · 9 mi NW
- Vernon, OK46 people · 25 mi SE
- Clearview, OK33 people · 7 mi E
- Bryant, OK3 people · 14 mi E
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 Okemah's climate
What is the coldest month in Okemah?
January, with a normal high of 50°F and a normal low of 30°F. The warmest is July (93°F by day, 71°F at night).
Does it snow in Okemah?
Yes: 5 inches in a normal year, falling on 3 days with 0.1 inch or more, the most in January (2.9 inches).
What is the rainiest month in Okemah?
May, with 5.72 in of precipitation in a normal year; the driest is January with 1.76 in.
What plant hardiness zone is Okemah in?
The USDA's 2023 map puts Okemah in zone 7b in ZIP code 74859, the nearest ZIP area. By the same method at Okemah's NOAA station, the coldest night of a typical year reaches 10°F (18 years, 1991-2020): zone 8a.
How late can frost come in Okemah?
In half of years the last 32°F night comes after March 24; in one year in ten it comes after April 10. Waiting until April 10 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oklahoma climateThe statewide normals and every place in the state
- Okmulgee, OK21 miles from this station, 60.0°F a year
- Seminole, OK24 miles from this station, 61.2°F a year
- Holdenville, OK26 miles from this station, 61.1°F a year
- Bristow, OK29 miles from this station, 59.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made