Weather in Mexico's Riviera Nayarit. One of the chief considerations in planning a vacation is the weather, and it is the weather that makes Riviera Nayarit an excellent choice for anyone trying to escape the cold of a northern winter, or the heat of a southern summer.
Asotin County Weather. The average temperature of Asotin County is 49.59Â°F, which is about the same as the Washington average temperature of 50.47Â°F and is lower than the national average temperature of 54.45Â°F. Historical Weather. Heating Cost Index, #24.
From October to April temperatures average around 33Â°C. Winters (June-August) are mild, with average daily July temperatures around 27Â°C. Overnight temperatures rarely fall below 5Â°C at any time of year. The average annual rainfall is 532 mm but sometimes no rain falls for months.anuary is the hottest month with average maximum temperatures of 28Â°C. The average annual rainfall is 629 mm with October the wettest month. During winter snow falls in the nearby Australian Alps. Average daily temperatures in the city in winter are around 11Â°C; dropping below 0Â°C at night.