Oklahoma

Bray, Oklahoma Climate

NOAA 1991-2020 normals for Duncan, 20 km from Bray

The warmest month is July, with an average high of 94°F; the coldest is January, with an average low of 28°F. A normal year brings 37.1 in of precipitation and 2.8 in of snow.

Temperature through the year

The normal daily high and low and the record for every date at Halliburton Field Airport/Duncan (DUC), since 1936. The line marks today.

Normal daily high and low temperature at Bray through the year, in °F, with the record for each date.-250255075100125JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Record high
  • Record low

Normals for Sep 24

Normal high
83°F
Normal low
60°F
Record high
99°Fin 1939
Record low
40°Fin 1965
Chance of a wet day
23%
Daylight
12 h 04 min

Month by month

Averages for 1991-2020. Wet days have at least 0.01 inch of precipitation. Freeze nights have a low of 32°F or colder; degree days are on a 65°F base. Each month links to its own page.

MonthAvg highAvg lowRecord highRecord lowPrecipitationWet daysSnowfallFreeze nightsHeating DDCooling DD
January52°F28°F84°F (1950)-8°F (1947)1.52 in5.21.1 in21.77700
February57°F32°F90°F (1996)-2°F (1985)1.84 in6.00.4 in14.55831
March65°F41°F97°F (1940)2°F (1948)2.76 in7.20.2 in6.138412
April73°F49°F100°F (1972)26°F (1940)3.45 in7.30.0 in0.616248
May81°F59°F104°F (1939)34°F (1960)5.58 in9.30.0 in0.033180
June89°F68°F111°F (1980)47°F (1964)4.49 in7.70.0 in0.01398
July94°F72°F110°F (1980)55°F (1972)2.58 in5.70.0 in0.00544
August93°F71°F111°F (1970)55°F (1966)2.90 in6.10.0 in0.00527
September86°F63°F108°F (1939)36°F (1942)3.79 in7.10.0 in0.014300
October76°F51°F102°F (1977)19°F (1993)3.86 in6.90.0 in0.413274
November64°F39°F90°F (1945)14°F (1940)2.33 in6.00.3 in6.94156
December54°F31°F88°F (1955)-2°F (1989)2.04 in6.20.8 in19.07080
Year73°F50°F37.14 in812.8 in693,2032,091

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 0.01 inch of precipitation.

37.1 in in a normal year, most in May.

Chance of a wet day

The chance of at least 0.01 inch of precipitation on each date at Bray, in percent, and of at least 0.1 inch of snowfall.010203040JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day
  • Chance of snowfall

Snow

NOAA 1991-2020 snowfall normals for Duncan.

2.8 in of snow in a normal year.

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Duncan. A median date has an even chance of a later freeze in spring, or an earlier one in fall.

The last spring freeze typically comes around March 25 and the first fall freeze around November 7, a growing season of about 225 days.

Median at 36°F
last April 7, first October 30
Median at 32°F
last March 25, first November 7
Median at 28°F
last March 11, first November 16

Frost dates, growing season and degree days

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Bray.

The muggiest month is June, when 62 percent of days are muggy or worse, with a mean dew point of 65°F or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January29°F70%100%0%0%0%0%0%
February33°F69%98%2%0%0%0%0%
March40°F67%89%8%3%0%0%0%
April48°F64%72%14%10%3%0%0%
May58°F68%29%19%25%23%2%0%
June66°F66%5%10%23%41%20%1%
July66°F57%2%10%28%38%21%1%
August65°F56%5%15%29%35%16%0%
September59°F61%30%16%22%25%6%0%
October49°F63%68%17%9%6%1%0%
November39°F68%92%7%2%0%0%0%
December31°F72%99%1%0%0%0%0%

Comfort is judged by the day's mean dew point: dry below 55°F, comfortable to 60°F, humid to 65°F, muggy to 70°F, oppressive to 75°F, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is July, with the sky 39 percent covered on average; the cloudiest is March, at 58 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is April, averaging 12.3 mph at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 17, with 14 h 29 min of daylight; the shortest is Dec 17, with 9 h 50 min.

Hours of daylight at Bray through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

How Stephens County is running

NOAA NCEI Climate at a Glance, from the nClimGrid analysis of every station, updated early each month. A rank of 1 is the highest or lowest of all years since 1895.

August 2026 in Stephens County: 89.2°F (+6.6 °F against 1991-2020), the 2nd warmest in 132 years on record.

August 2026 in Stephens County: 0.39 in (-2.44 in against 1991-2020), the 10th driest in 132 years on record.

January to August 2026 in Stephens County: 68.6°F (+4.2 °F against 1991-2020), the warmest in 132 years on record.

January to August 2026 in Stephens County: 19.11 in (-4.82 in against 1991-2020), the 37th driest in 132 years on record.

Warmest August
91.1°F in 2011
Coolest August
76.1°F in 1915
Wettest August
8.81 in in 1906
Driest August
0.00 in in 2000

Every year since 1895

Each year's average temperature in Stephens County against the 1991-2020 average, in °F, 1895 to 2025.-4-20+2+41900192019401960198020002020NOAA NCEI Climate at a Glance

Oklahoma climate and rankings

Month pages

The weather in Bray in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

A record is the highest or lowest value on the date in every year the station has reported, back to 1936. It rests on one station, so a neighbor a few miles away can hold different ones.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00342660 (Duncan), public domain. Records: NOAA GHCN-Daily, station USC00342660, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus. Rankings: NOAA NCEI Climate at a Glance, public domain.