Hermiston (OR) Climate by Month
The temperature in Hermiston can vary greatly throughout the year.
The temperatures shift from very warm
to cold.
The area is known for its low rain/snowfall.
Let's now guide you through the climate details for a complete overview.
Average day and night temperature
Depending on the time of the year, temperatures range from very warm to chilly in Hermiston. Average daytime temperatures range from a very warm 33°C in July, the warmest time of the year, to a chilly 5°C during cooler months like December. At night, temperatures typically average around -3°C during these months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Hermiston has a dry climate with very low precipitation, averaging 220 mm of rain/snowfall annually. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives moderate snow/rainfall, averaging 35 mm of precipitation, recorded across 14 snowy/rainy days. In contrast, the drier season, July brings less rainfall, with 3 mm over 2 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
The best time of year to visit Hermiston in the United States of America
Other facts from our historical weather data:The hottest season / summer takes place in June, July, August and September.
Yes, the months of February, April, June, July, August and September are very dry.
July has an average maximum temperature of 33°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 5°C.
December tops the wettest month list with 35 mm of rainfall.
July is the driest month with 3 mm of precipitation.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
