Oklahoma

Roff, Oklahoma Climate

NOAA 1991-2020 normals for Sulphur 4NNE Mesonet, 12.2 km from Roff

The warmest month is August, with an average high of 93°F; the coldest is January, with an average low of 28°F. A normal year brings 40.7 in of precipitation and 1.7 in of snow.

Temperature through the year

The normal daily high and low and the record for every date at Ada_municipal_airport (ADH), since 1907. The line marks today.

Normal daily high and low temperature at Roff through the year, in °F, with the record for each date.-50050100150JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Record high
  • Record low

Normals for Sep 26

Normal high
82°F
Normal low
58°F
Record high
97°Fin 1938
Record low
39°Fin 1912
Daylight
12 h 00 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 (1911)-10°F (1930)1.84 in1.0 in21.57730
February56°F33°F91°F (1996)-2°F (2011)2.19 in0.3 in15.05813
March65°F41°F96°F (1916)3°F (1943)3.17 in0.1 in7.239114
April72°F49°F99°F (1936)22°F (1975)3.71 in0.0 in1.718242
May79°F59°F100°F (1927)34°F (1907)5.69 in0.0 in0.347160
June87°F67°F106°F (1936)42°F (1910)4.60 in0.0 in0.00369
July92°F71°F109°F (1933)52°F (1971)3.24 in0.0 in0.00516
August93°F70°F116°F (1936)50°F (1915)2.63 in0.0 in0.00517
September85°F62°F109°F (1939)34°F (1942)4.30 in0.0 in0.015279
October74°F50°F98°F (1938)18°F (1993)4.08 in0.0 in1.616875
November63°F39°F88°F (1945)10°F (1976)2.59 in0.0 in9.44248
December54°F31°F85°F (1955)-8°F (1989)2.64 in0.3 in18.77131
Year73°F50°F40.68 in1.7 in753,2941,984

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.

40.7 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 Roff, in percent, and of at least 0.1 inch of snowfall.00.30.50.811.3JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day
  • Chance of snowfall

Snow

NOAA 1991-2020 snowfall normals for Chickasaw Nra, 18.8 km away; Sulphur 4NNE Mesonet keeps no snowfall normals.

1.7 in of snow in a normal year.

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Sulphur 4NNE Mesonet. 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 April 4 and the first fall freeze around November 1, a growing season of about 212 days.

Median at 36°F
last April 15, first October 25
Median at 32°F
last April 4, first November 1
Median at 28°F
last March 20, first November 10

Frost dates, growing season and degree days

Plant hardiness zone

2023 USDA Plant Hardiness Zone Map GIS data (USDA-ARS and Oregon State University’s PRISM Climate Group), at the town’s center on the map’s 800 m grid. Zones are 10°F apart, half zones 5°F.

Roff is in USDA zone 7b 7b: the coldest night of the winter averages 8.8°F, within zone 7b’s 5 to 10°F.

Zone
7b
Average coldest night
8.8°F1991-2020
Range of the half zone
5 to 10°F-15.0 to -12.2°C

Every town’s zone in Oklahoma Zone map

Humidity and comfort

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

The muggiest month is June, when 74 percent of days are muggy or worse, with a mean dew point of 65°F or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January31°F76%98%2%0%0%0%0%
February35°F75%96%4%1%0%0%0%
March43°F74%84%10%5%1%0%0%
April51°F72%62%18%14%7%0%0%
May61°F75%23%17%23%31%7%0%
June67°F73%2%7%16%36%36%2%
July67°F63%1%6%19%38%32%3%
August66°F59%4%12%25%37%23%0%
September60°F64%28%15%20%26%11%0%
October50°F67%64%16%11%8%1%0%
November41°F73%87%9%3%0%0%0%
December33°F77%97%2%1%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 40 percent covered on average; the cloudiest is March, at 60 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 March, 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 Roff 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 Pontotoc 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 Pontotoc County: 88.3°F (+6.6 °F against 1991-2020), the 2nd warmest in 132 years on record.

August 2026 in Pontotoc County: 0.47 in (-2.53 in against 1991-2020), the 7th driest in 132 years on record.

January to August 2026 in Pontotoc County: 68.3°F (+4.5 °F against 1991-2020), the warmest in 132 years on record.

January to August 2026 in Pontotoc County: 25.71 in (-2.85 in against 1991-2020), the 59th driest in 132 years on record.

Warmest August
89.8°F in 2011
Coolest August
75.2°F in 1992
Wettest August
11.37 in in 1906
Driest August
0.00 in in 2000

Every year since 1895

Each year's average temperature in Pontotoc 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 Roff 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 1907. 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 USC00348570 (Sulphur 4NNE Mesonet), public domain. Records: NOAA GHCN-Daily, station USC00340017, 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.