2025 Compare Climate & Weather:
Temecula, CA vs Union City, CA

Highlights

On average, there are 265 sunny days per year in Union City. Temecula averages 276 sunny days per year. The US average is 205 sunny days.

Union City, California gets 16.6 inches of rain, on average, per year. Temecula, California gets 12 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Union City averages 0 inches of snow per year. Temecula averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Union City, California
Summer High: the July high is around 76.1 degrees
Winter Low: the January low is 42.3
Rain: averages 16.6 inches of rain a year
Snow: averages 0 inches of snow a year

Temecula, California
Summer High: the July high is around 93.7 degrees
Winter Low: the January low is 41
Rain: averages 12 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Temecula is 8.6 (10=best), which means it is more comfortable than most places in California.

Today's Weather - Temecula, CA

64°F

Today's Weather - Union City, CA

58°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Temecula / Union City

August is the hottest month for Temecula with an average high temperature of 95.7°, which ranks it as warmer than most places in California. In Temecula, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Temecula are April, May and November.

August is the hottest month for Union City with an average high temperature of 77.3°, which ranks it as cooler than most places in California. In Union City, there are 6 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Union City are August, September and July.

December has the coldest nighttime temperatures for Temecula with an average of 39.4°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Union City with an average of 42.3°. This is warmer than most places in California.

In Temecula, there are 90.6 days annually when the high temperature is over 90°, which is hotter than most places in California.

In Union City, there are 7.8 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Temecula, there are 13.8 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in California.

In Union City, there are 1.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

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

February is the wettest month in Temecula with 3.0 inches of rain, and the driest month is June with 0.0 inches. The wettest season is Spring with 62% of yearly precipitation and 2% occurs in Autumn, which is the driest season. The annual rainfall of 12.0 inches in Temecula means that it is drier than most places in California.


February is the wettest month in Union City with 3.2 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 55% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 16.6 inches in Union City means that it is about average compared to other places in California.

February is the rainiest month in Temecula with 5.5 days of rain, and June is the driest month with only 0.3 rainy days. There are 31.1 rainy days annually in Temecula, which is one of the least rainy places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 5% chance of a rainy day.

December is the rainiest month in Union City with 11.4 days of rain, and July is the driest month with only 0.1 rainy days. There are 64.1 rainy days annually in Union City, which is rainier than most places in California. The rainiest season is Spring when it rains 51% of the time and the driest is Autumn with only a 2% chance of a rainy day.

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

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

Any measurable snowfall is a rare occurance in Temecula.

Any measurable snowfall is a rare occurance in Union City.