2025 Compare Climate & Weather:
Iowa City, IA vs Oakland, CA

Highlights

On average, there are 261 sunny days per year in Oakland. Iowa City averages 199 sunny days per year. The US average is 205 sunny days.

Oakland, California gets 23.6 inches of rain, on average, per year. Iowa City, Iowa gets 36.9 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. Iowa City averages 26.8 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

Iowa City, Iowa
Summer High: the July high is around 85.1 degrees
Winter Low: the January low is 13.3
Rain: averages 36.9 inches of rain a year
Snow: averages 26.8 inches of snow a year

BestPlaces Comfort Index

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

The annual BestPlaces Comfort Index for Iowa City is 7.0 (10=best), which means it is more comfortable than most places in Iowa.

Today's Weather - Iowa City, IA

71°F

Today's Weather - Oakland, CA

58°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Iowa City / Oakland

July is the hottest month for Iowa City with an average high temperature of 85.1°, which ranks it as warmer than most places in Iowa. In Iowa City, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Iowa City are September, June and August.

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 Iowa City with an average of 13.3°. This is warmer than most places in Iowa.

January has the coldest nighttime temperatures for Oakland with an average of 43.7°. This is warmer than most places in California.

In Iowa City, there are 16.6 days annually when the high temperature is over 90°, which is hotter than most places in Iowa.

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 Iowa City, there are 133.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Iowa.

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 Iowa City, there are 12.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Iowa.

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.

July is the wettest month in Iowa City with 4.8 inches of rain, and the driest month is January with 1.0 inches. The wettest season is Autumn with 39% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 36.9 inches in Iowa City means that it is wetter than most places in Iowa.


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.

May is the rainiest month in Iowa City with 11.2 days of rain, and February is the driest month with only 5.5 rainy days. There are 98.0 rainy days annually in Iowa City, which is about average compared to other places in Iowa. The rainiest season is Summer when it rains 29% of the time and the driest is Spring with only a 19% 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.

An annual snowfall of 26.8 inches in Iowa City means that it is less snowy than most places in Iowa.

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

December is the snowiest month in Iowa City with 8.1 inches of snow, and 6 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Oakland.