Also, before you use a nasal steroid spray to treat your allergies, doctors suggest you first use a saline nasal spray to cleanse the nose and rid it of thick mucus and debris. Thick mucus can keep the nasal steroid spray from coating the nasal mucosa, where itâs most effective.
Olympia: Annual Weather Averages. August is the hottest month in Olympia with an average temperature of 25Â°C (77Â°F) and the coldest is January at 10Â°C (50Â°F) with the most daily sunshine hours at 13 in July. The wettest month is December with an average of 148mm of rain.
Most / Least Educated Cities in WA. The average temperature of Olympia is 51.74Â°F, which is higher than the Washington average temperature of 50.47Â°F and is lower than the national average temperature of 54.45Â°F..S. 16.93 mph. * The temperature, snow fall, and precipitation information on this page were calculated from the historical data of 18,000+ U.S weather stations for the period of time from 1980 to 2010.