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Winthrop 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
January18°F30°F24°F1.2"
February25°F44°F33°F2.4"
March31°F57°F43°F1.8"
April35°F65°F50°F1.5"
May42°F75°F59°F2.6"
June49°F80°F64°F4.2"
July58°F92°F75°F1.6"
August54°F91°F73°F0.8"
September45°F78°F61°F2.2"
October37°F61°F48°F2.3"
November27°F41°F34°F3.6"
December18°F30°F25°F4.0"

Did you know?

  • The highest monthly average temperature in Winthrop for July is 75 degrees.
  • The lowest monthly average temperature in Winthrop for January is 24 degrees.
  • The most monthly precipitation in Winthrop occurs in June with 4.2 inches.
  • The air quality index in Winthrop is 45% better than the national average.
  • The pollution index in Winthrop is 91% better than the national average.

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Winthrop 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.
IndexWinthropWashingtonNational
Air quality index273650
Pollution index422,6268,596,9895,066,862

Winthrop air quality information

MeasurementTotal
Days measured365
Days with good air quality275
Days with moderate air quality90
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Winthrop air quality information

PollutantTotal
Arsenic0.000%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.000%
Mercury0.000%

Average monthly Winthrop temperature with heat index

Winthrop monthly precipitation with daily maximum

Winthrop monthly snow depth with daily maximum

Winthrop monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Twisp, WA1,0332746%
Winthrop, WA3852746%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Donahue, IA3855510%
Midwest, WY3853922%
Hornbeak, TN3853628%
Neshkoro, WI3853922%
Grindstone, PA3853040%
Winthrop, WA3852746%
Source: The Winthrop, WA 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.