TODAY OCT18
TEMPERATURE55
HUMIDITY90
PRESSURE30.4
WIND COND.60 3.4
  • 625320%60%
  • 5754Fri100%80%
  • 6946Sat50%
  • 6144Sun
  • 6048Mon
daynightWeather update from Sherman/Denison, Grayson County Airport at
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Denison Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January34°F56°F44°F2.5"
February38°F60°F47°F2.1"
March47°F69°F56°F2.9"
April54°F76°F64°F4.7"
May61°F82°F71°F5.6"
June71°F91°F81°F4.5"
July74°F95°F84°F3.1"
August74°F96°F84°F3.1"
September67°F89°F77°F2.9"
October56°F79°F66°F3.1"
November46°F67°F56°F2.9"
December37°F56°F45°F2.6"

Did you know?

  • The highest monthly average temperature in Denison for August is 84 degrees.
  • The lowest monthly average temperature in Denison for January is 44 degrees.
  • The most monthly precipitation in Denison occurs in May with 5.6 inches.
  • The air quality index in Denison is 553% worse than the national average.
  • The pollution index in Denison is 78% better than the national average.

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Compare Denison, TX Weather To Other Cities

Denison air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexDenisonTexasNational
Air quality index3255250
Pollution index1,087,5504,642,9165,066,862

Denison air quality information

MeasurementTotal
Days measured138
Days with good air quality120
Days with moderate air quality17
Days w/ poor A.Q. for sensitive groups1
Days with unhealthy air quality

Denison air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.002%
Lead0.020%
Mercury0.000%

Average monthly Denison temperature with heat index

Denison monthly precipitation with daily maximum

Denison monthly snow depth with daily maximum

Denison monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Colbert, OK1,329325550%
Platter, OK190325550%
Preston, TX1,481325550%
Southmayd, TX976325550%
Achille, OK366325550%
Denison, TX23,080325550%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Rosemont, CA23,0815510%
Solon, OH23,0855510%
McDonough, GA23,086524%
East Peoria, IL23,090484%
Rosemount, MN23,0994412%
Denison, TX23,080325550%
Source: The Denison, TX weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.