Indiana

Tecumseh, Indiana Climate

NOAA 1991-2020 normals for Terre Haute Indiana State, 10.3 km from Tecumseh

The warmest month is July, with an average high of 90°F; the coldest is January, with an average low of 19°F. A normal year brings 44.7 in of precipitation and 15.4 in of snow.

Temperature through the year

The normal daily high and low and the record for every date at Terre Haute (HUF), since 1961. The line marks today.

Normal daily high and low temperature at Tecumseh 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
81°F
Normal low
52°F
Record high
93°Fin 2017
Record low
34°Fin 2012
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
January40°F19°F68°F (2006)-17°F (2004)2.48 in6.8 in26.91,0990
February45°F23°F75°F (2000)-16°F (2014)2.52 in2.9 in23.18710
March56°F33°F87°F (2026)-6°F (2015)3.41 in1.5 in16.96484
April69°F44°F87°F (2024)20°F (2021)4.92 in0.0 in4.229228
May78°F55°F96°F (2012)29°F (2005)4.75 in0.0 in0.290131
June87°F63°F106°F (2012)37°F (2003)5.09 in0.0 in0.010309
July90°F66°F106°F (2012)45°F (2001)4.27 in0.0 in0.01416
August89°F64°F100°F (2012)43°F (2004)3.31 in0.0 in0.01368
September84°F56°F98°F (2011)33°F (1999)3.29 in0.0 in0.448185
October71°F43°F93°F (2019)24°F (2015)3.72 in0.0 in4.328532
November56°F33°F80°F (2020)4°F (2019)3.74 in0.4 in15.46101
December45°F25°F73°F (1998)-11°F (2000)3.17 in3.8 in24.39390
Year67°F44°F44.67 in15.4 in1164,8921,474

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.

44.7 in in a normal year, most in June.

Chance of a wet day

The chance of at least 0.01 inch of precipitation on each date at Tecumseh, in percent, and of at least 0.1 inch of snowfall.051015JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day
  • Chance of snowfall

Snow

NOAA 1991-2020 snowfall normals for Clinton 2 W, 10.8 km away; Terre Haute Indiana State keeps no snowfall normals.

15.4 in of snow in a normal year.

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Terre Haute Indiana State. 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 15 and the first fall freeze around October 19, a growing season of about 187 days.

Median at 36°F
last April 26, first October 10
Median at 32°F
last April 15, first October 19
Median at 28°F
last April 1, first October 30

Frost dates, growing season and degree days

Humidity and comfort

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

The muggiest month is July, when 64 percent of days are muggy or worse, with a mean dew point of 65°F or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January23°F86%99%1%0%0%0%0%
February26°F83%99%1%0%0%0%0%
March35°F79%93%4%2%0%0%0%
April45°F77%79%13%7%2%0%0%
May56°F79%45%16%17%18%4%0%
June64°F79%11%15%21%26%24%3%
July67°F77%4%12%21%26%31%7%
August64°F73%10%19%23%25%21%2%
September56°F69%47%18%17%13%4%0%
October45°F72%82%11%5%3%0%0%
November35°F78%96%4%1%0%0%0%
December27°F85%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 September, with the sky 46 percent covered on average; the cloudiest is February, at 71 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 12.1 mph at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 20, with 14 h 59 min of daylight; the shortest is Dec 19, with 9 h 22 min.

Hours of daylight at Tecumseh 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 Vigo 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 Vigo County: 74.5°F (+0.4 °F against 1991-2020), the 49th warmest in 132 years on record.

August 2026 in Vigo County: 6.13 in (+2.97 in against 1991-2020), the 8th wettest in 132 years on record.

January to August 2026 in Vigo County: 56.9°F (+1.3 °F against 1991-2020), the 12th warmest in 132 years on record.

January to August 2026 in Vigo County: 35.69 in (+5.28 in against 1991-2020), the 10th wettest in 132 years on record.

Warmest August
80.3°F in 1947
Coolest August
67.4°F in 1915
Wettest August
8.56 in in 1985
Driest August
0.45 in in 1897

Every year since 1895

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

Indiana climate and rankings

Month pages

The weather in Tecumseh 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 1961. 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 USC00128723 (Terre Haute Indiana State), public domain. Records: NOAA GHCN-Daily, station USW00003868, 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.