The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Union City, CA vs Oakland, CA

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

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Highlights

On average, there are 261 sunny days per year in Oakland. Union City averages 265 sunny days per year. The US average is 205 sunny days.

Oakland, California gets 23.6 inches of rain, on average, per year. Union City, California gets 16.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

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

Weather Highlights

Oakland, California
Summer High: the July high is around 71.7 degrees
Winter Low: the January low is 43.7
Rain: averages 23.6 inches of rain a year
Snow: averages 0 inches of snow a year

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

BestPlaces Comfort Index
Oakland

The annual BestPlaces Comfort Index for Oakland is 8.7 (10=best), which means it is more comfortable than most places in California.

8.7 / 10
August, September and July are the most pleasant months in Oakland, while January and December are the least comfortable months.

Union City

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

8.8 / 10
August, July and September are the most pleasant months in Union City, while January and December are the least comfortable months.

Average Monthly High / Low (°F)
MonthUnion City, CAOakland, CA
January58° / 42°58° / 44°
February61° / 45°61° / 46°
March65° / 47°64° / 48°
April68° / 49°67° / 49°
May70° / 53°69° / 52°
June74° / 55°71° / 54°
July76° / 57°72° / 56°
August77° / 58°73° / 57°
September77° / 57°74° / 56°
October72° / 53°71° / 54°
November64° / 47°64° / 48°
December58° / 43°58° / 44°
Hot, Freezing, Rainy, Snowy Days: Union City / Oakland
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 01 / 011 / 110 / 0
February0 / 00 / 011 / 100 / 0
March0 / 00 / 09 / 110 / 0
April0 / 00 / 06 / 60 / 0
May1 / 00 / 03 / 30 / 0
June1 / 10 / 01 / 10 / 0
July2 / 00 / 00 / 00 / 0
August2 / 10 / 00 / 10 / 0
September2 / 10 / 01 / 10 / 0
October0 / 00 / 04 / 40 / 0
November0 / 00 / 07 / 80 / 0
December0 / 01 / 111 / 110 / 0
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.

September is the hottest month for Oakland with an average high temperature of 74.2°, which ranks it as one of the coolest places in California. In Oakland, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Oakland are September, August and July.
January has the coldest nighttime temperatures for Union City with an average of 42.3°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Oakland with an average of 43.7°. This is warmer 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 Oakland, there are 3.7 days annually when the high temperature is over 90°, which is one of the coolest 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 Oakland, there are 0.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most 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.

In Oakland, 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 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 wettest month in Oakland with 4.5 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 23.6 inches in Oakland means that it is wetter than most places in California.

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.

January is the rainiest month in Oakland with 11.0 days of rain, and July is the driest month with only 0.2 rainy days. There are 67.0 rainy days annually in Oakland, which is rainier than most places in California. The rainiest season is Spring when it rains 48% of the time and the driest is Autumn with only a 3% chance of a rainy day.

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

There is rarely any recorded snowfall in Oakland, ranking it as one of the least snowy places in California.
Any measurable snowfall is a rare occurance in Union City.

Any measurable snowfall is a rare occurance in Oakland.

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 Union City    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

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

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

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

   |    Reply

Start Your Review of Union City

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Reviews for Oakland    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

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

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

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

   |    Reply

Start Your Review of Oakland

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Zips In Union City, California
94587
Zips In OAKLAND, CALIFORNIA
94601, 94605, 94611, 94606, 94603, 94621, 94610, 94602, 94608, 94607, 15 total
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