2025 Compare Climate & Weather:
Lacey, WA vs Ontario, CA

Highlights

On average, there are 279 sunny days per year in Ontario. Lacey averages 136 sunny days per year. The US average is 205 sunny days.

Ontario, California gets 15.7 inches of rain, on average, per year. Lacey, Washington gets 48.9 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ontario averages 0 inches of snow per year. Lacey averages 6.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ontario, California
Summer High: the July high is around 91.9 degrees
Winter Low: the January low is 42.6
Rain: averages 15.7 inches of rain a year
Snow: averages 0 inches of snow a year

Lacey, Washington
Summer High: the July high is around 76.8 degrees
Winter Low: the January low is 35
Rain: averages 48.9 inches of rain a year
Snow: averages 6.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Ontario is 8.8 (10=best), which means it is more comfortable than most places in California.

The annual BestPlaces Comfort Index for Lacey is 7.2 (10=best), which means it is more comfortable than most places in Washington.

Today's Weather - Lacey, WA

60°F

Today's Weather - Ontario, CA

87°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Lacey / Ontario

August is the hottest month for Lacey with an average high temperature of 77.4°, which ranks it as about average compared to other places in Washington. In Lacey, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lacey are August, July and September.

August is the hottest month for Ontario with an average high temperature of 93.4°, which ranks it as warmer than most places in California. In Ontario, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ontario are May, October and April.

December has the coldest nighttime temperatures for Lacey with an average of 34.0°. This is warmer than most places in Washington.

December has the coldest nighttime temperatures for Ontario with an average of 41.4°. This is warmer than most places in California.

In Lacey, there are 4.4 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.

In Ontario, there are 79.5 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Lacey, there are 49.2 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

In Ontario, there are 3.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Lacey, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.

In Ontario, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

November is the wettest month in Lacey with 8.4 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 48.9 inches in Lacey means that it is wetter than most places in Washington.


February is the wettest month in Ontario with 3.8 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 60% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 15.7 inches in Ontario means that it is drier than most places in California.

November is the rainiest month in Lacey with 20.5 days of rain, and July is the driest month with only 4.6 rainy days. There are 163.1 rainy days annually in Lacey, which is rainier than most places in Washington. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 11% chance of a rainy day.

February is the rainiest month in Ontario with 5.7 days of rain, and July is the driest month with only 0.2 rainy days. There are 30.5 rainy days annually in Ontario, which is one of the least rainy places in California. The rainiest season is Spring when it rains 50% of the time and the driest is Autumn with only a 4% chance of a rainy day.

An annual snowfall of 6.1 inches in Lacey means that it is about average compared to other places in Washington.

There is rarely any recorded snowfall in Ontario, ranking it as one of the least snowy places in California.

February is the snowiest month in Lacey with 2.3 inches of snow, and 5 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Ontario.