Texas

Linn, Texas Climate

NOAA 1991-2020 normals for Mccook, 0.6 km from Linn

The warmest month is August, with an average high of 98°F; the coldest is January, with an average low of 47°F. A normal year brings 19.8 in of precipitation and 0.2 in of snow.

Temperature through the year

The normal daily high and low and the record for every date at Edinburg (EBG), since 2004. The line marks today.

Normal daily high and low temperature at Linn through the year, in °F, with the record for each date.20406080100120JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Record high
  • Record low

Normals for Sep 24

Normal high
90°F
Normal low
69°F
Record high
106°Fin 2005
Record low
58°Fin 2021
Chance of a wet day
24%
Daylight
12 h 05 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
January69°F47°F94°F (2017)21°F (2010)0.87 in6.50.0 in1.025239
February74°F51°F98°F (2023)20°F (2021)0.80 in5.10.0 in0.614375
March80°F57°F103°F (2008)30°F (2007)1.11 in5.00.0 in0.163171
April86°F63°F107°F (2022)40°F (2007)1.02 in4.50.0 in0.013291
May90°F69°F112°F (2024)48°F (2004)1.74 in4.40.0 in0.01461
June95°F73°F111°F (2023)63°F (2020)2.52 in4.40.0 in0.00579
July97°F74°F106°F (2009)66°F (2019)1.56 in4.50.0 in0.00639
August98°F74°F107°F (2023)63°F (2004)1.26 in3.70.0 in0.00645
September92°F70°F106°F (2005)53°F (2020)3.92 in8.40.0 in0.01484
October86°F64°F102°F (2012)37°F (2017)2.69 in4.80.0 in0.012324
November76°F55°F96°F (2016)28°F (2018)1.27 in5.30.0 in0.198126
December70°F49°F92°F (2024)26°F (2010)1.08 in6.50.2 in0.623050
Year84°F62°F19.84 in630.2 in38133,881

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.

19.8 in in a normal year, most in September.

Chance of a wet day

The chance of at least 0.01 inch of precipitation on each date at Linn, in percent, and of at least 0.1 inch of snowfall.0102030JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day
  • Chance of snowfall

Snow

NOAA 1991-2020 snowfall normals for La Joya, 33.1 km away; Mccook keeps no snowfall normals.

0.2 in of snow in a normal year.

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Mccook. 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 January 22 and the first fall freeze around December 19, a growing season of about 333 days.

Median at 36°F
last February 18, first December 4
Median at 32°F
last January 22, first December 19
Median at 28°F
last January 6, first January 1

Frost dates, growing season and degree days

Humidity and comfort

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

The muggiest month is July, when 99 percent of days are muggy or worse, with a mean dew point of 65°F or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January49°F71%64%17%15%4%0%0%
February53°F69%49%20%23%8%0%0%
March56°F66%35%17%25%22%0%0%
April61°F65%20%13%25%37%6%0%
May67°F66%4%5%12%45%33%1%
June71°F65%0%1%4%30%59%7%
July71°F66%0%0%1%26%66%7%
August72°F65%0%0%1%22%71%6%
September71°F71%2%4%7%16%56%15%
October65°F69%14%9%18%27%29%3%
November57°F70%35%16%21%23%5%0%
December51°F71%57%13%18%12%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 38 percent covered on average; the cloudiest is December, at 67 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 12.5 mph at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 16, with 13 h 49 min of daylight; the shortest is Dec 17, with 10 h 28 min.

Hours of daylight at Linn 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 Hidalgo 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 Hidalgo County: 90.0°F (+2.8 °F against 1991-2020), the 2nd warmest in 132 years on record.

August 2026 in Hidalgo County: 1.47 in (-0.36 in against 1991-2020), the 58th wettest in 132 years on record.

January to August 2026 in Hidalgo County: 79.0°F (+2.5 °F against 1991-2020), the warmest in 132 years on record.

January to August 2026 in Hidalgo County: 13.36 in (-0.19 in against 1991-2020), the 63rd wettest in 132 years on record.

Warmest August
90.3°F in 1905
Coolest August
82.1°F in 1916
Wettest August
8.34 in in 1980
Driest August
0.00 in in 1902

Every year since 1895

Each year's average temperature in Hidalgo County against the 1991-2020 average, in °F, 1895 to 2025.-6-4-20+2+4+61900192019401960198020002020NOAA NCEI Climate at a Glance

Texas climate and rankings

Month pages

The weather in Linn 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 2004. 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 USC00415721 (Mccook), public domain. Records: NOAA GHCN-Daily, station USW00012987, 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.