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Climate - Winthrop (Washington)


Average weather, temperature, rainfall, sunshine hours

Flag - United States

Winthrop, where it's located




The climate of Winthrop is arid continental, with very cold winters and hot summers, and with strong temperature variations between night and day.
The town, which has a few hundred inhabitants, has the appearance of an old West city. It is located in the north of Washington state, east of the Cascade Range, in a valley at 600 meters (2,000 ft) above sea level. In the area, you can practice cross-country skiing.
During the winter, sometimes as early as in mid-November, cold spells can occur, in which the temperature drops to -30 °C (-22 °F) or below. Together with Mazama (located 27 kilometers or 17 miles northwest), Winthrop holds the coldest record for the state of Washington: -44 °C, recorded on December 30, 1968.
On average, 155 cm (61 in) of snow fall per year.
In summer, the temperature range between night and day is high, so it can get cold at night, while during some periods, it can reach 38/40 °C (100/104 °F) during the day.
The average temperature of the coldest month (January) is of -6.1 °C (21 °F), that of the warmest month (July) is of 19.6 °C (67 °F). Here are the average temperatures.
Winthrop - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)-11-8-4047994-1-4-10
Max (°C)-1410172226303025175-2
Min (°F)121825323945484839302514
Max (°F)303950637279868677634128

Precipitation amounts to 385 millimeters (15.2 inches) per year: it is therefore quite scarce. It ranges from 15 mm (0.6 in) in the driest month (September) to 65 mm (2.6 in) in the wettest (December). Here is the average precipitation.
Winthrop - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)504025202525202015255065385
Prec.(in)21.610.8110.80.80.6122.615.2
Days11876785546121290

Winthrop

Best Time


The best times to visit Winthrop are spring and autumn, and in particular the months of May and September, to avoid both the winter cold and the summer heat.

Back to the climate of Washington state.



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