2024 Compare Climate & Weather:
Ontario, CA vs Vaughn, WA
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Highlights
On average, there are 139 sunny days per year in Vaughn. Ontario averages 279 sunny days per year. The US average is 205 sunny days.
Vaughn, Washington gets 50 inches of rain, on average, per year. Ontario, California gets 15.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Vaughn averages 2.3 inches of snow per year. Ontario averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Vaughn, Washington
Summer High: the July high is around 75.8 degrees
Winter Low: the January low is 36.2
Rain: averages 50 inches of rain a year
Snow: averages 2.3 inches of snow a year
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
BESTPLACES COMFORT INDEX
VaughnThe annual BestPlaces Comfort Index for Vaughn is 7.2 (10=best), which means it is more comfortable than most places in Washington.
7.2 / 10
August, July and September are the most pleasant months in Vaughn, while January and December are the least comfortable months.
OntarioThe annual BestPlaces Comfort Index for Ontario is 8.8 (10=best), which means it is more comfortable than most places in California.
8.8 / 10
May, June and October are the most pleasant months in Ontario, while August and July are the least comfortable months.
Today's Weather - Ontario, CA
7 AM PST
Sunny
56°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Today | Sunny | 80° / 54° | W 5 to 15 mph |
| Wednesday | Patchy Fog then Sunny | 78° / 54° | W 5 to 15 mph |
| Thursday | Sunny | 81° / 55° | W 5 to 15 mph |
| Friday | Patchy Fog then Sunny | 79° / 55° | W 5 to 15 mph |
| Saturday | Patchy Fog then Sunny | 76° / 54° | W 5 to 15 mph |
| Sunday | Patchy Fog then Mostly Sunny | 66° / 50° | SW 5 to 15 mph |
| Monday | Mostly Sunny | 72° / 51° | SE 5 to 15 mph |
Average Monthly High / Low (°F)
| Month | Ontario, CA | Vaughn, WA |
|---|
| January | 67° / 43° | 47° / 36° |
| February | 67° / 44° | 50° / 36° |
| March | 70° / 46° | 54° / 38° |
| April | 75° / 49° | 59° / 41° |
| May | 79° / 54° | 65° / 46° |
| June | 85° / 58° | 70° / 51° |
| July | 92° / 62° | 76° / 54° |
| August | 93° / 63° | 76° / 54° |
| September | 90° / 60° | 71° / 50° |
| October | 81° / 54° | 60° / 45° |
| November | 73° / 46° | 51° / 39° |
| December | 67° / 41° | 45° / 35° |
Hot, Freezing, Rainy, Snowy Days: Ontario / Vaughn
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 1 / 7 | 5 / 19 | 0 / 0 |
| February | 0 / 0 | 0 / 7 | 6 / 15 | 0 / 0 |
| March | 0 / 0 | 0 / 3 | 5 / 18 | 0 / 0 |
| April | 2 / 0 | 0 / 1 | 3 / 15 | 0 / 0 |
| May | 4 / 0 | 0 / 0 | 1 / 12 | 0 / 0 |
| June | 8 / 0 | 0 / 0 | 1 / 10 | 0 / 0 |
| July | 20 / 1 | 0 / 0 | 0 / 5 | 0 / 0 |
| August | 22 / 1 | 0 / 0 | 0 / 5 | 0 / 0 |
| September | 16 / 0 | 0 / 0 | 1 / 7 | 0 / 0 |
| October | 6 / 0 | 0 / 0 | 2 / 13 | 0 / 0 |
| November | 1 / 0 | 0 / 3 | 3 / 20 | 0 / 0 |
| December | 0 / 0 | 2 / 8 | 4 / 18 | 0 / 1 |
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.
August is the hottest month for Vaughn with an average high temperature of 76.0°, which ranks it as cooler than most places in Washington. In Vaughn, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Vaughn are August, July and September.
December has the coldest nighttime temperatures for Ontario with an average of 41.4°. This is warmer than most places in California.
December has the coldest nighttime temperatures for Vaughn with an average of 35.3°. This is warmer than most 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 Vaughn, there are 2.2 days annually when the high temperature is over 90°, which is cooler than most 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 Vaughn, there are 30.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most 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.
In Vaughn, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other 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 wettest month in Vaughn with 8.2 inches of rain, and the driest month is July with 0.8 inches. The wettest season is Spring with 42% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 50.0 inches in Vaughn means that it is wetter than most places in Washington.
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.
November is the rainiest month in Vaughn with 19.8 days of rain, and August is the driest month with only 5.0 rainy days. There are 156.7 rainy days annually in Vaughn, which is about average compared to other places in Washington. The rainiest season is Spring when it rains 33% of the time and the driest is Autumn with only a 13% chance of a rainy day.
There is rarely any recorded snowfall in Ontario, ranking it as one of the least snowy places in California.
An annual snowfall of 2.3 inches in Vaughn means that it is less snowy than most places in Washington.
Any measurable snowfall is a rare occurance in Ontario.
December is the snowiest month in Vaughn with 0.8 inches of snow, and 2 months of the year have significant snowfall.
DID YOU KNOW?
Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.
Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.
Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.
Reviews for Ontario 
2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
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Reviews for Vaughn 2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Vaughn
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