2025 Compare Climate & Weather:
Boise City, ID vs Sioux City, IA

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Highlights

On average, there are 210 sunny days per year in Sioux City. Boise City averages 206 sunny days per year. The US average is 205 sunny days.

Sioux City, Iowa gets 29.5 inches of rain, on average, per year. Boise City, Idaho gets 13 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Sioux City averages 32.3 inches of snow per year. Boise City averages 17.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Sioux City, Iowa
Summer High: the July high is around 85.5 degrees
Winter Low: the January low is 9.6
Rain: averages 29.5 inches of rain a year
Snow: averages 32.3 inches of snow a year

Boise City, Idaho
Summer High: the July high is around 91.6 degrees
Winter Low: the January low is 23.7
Rain: averages 13 inches of rain a year
Snow: averages 17.5 inches of snow a year

BestPlaces Comfort Index
Sioux City

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

7 / 10
June, September and August are the most pleasant months in Sioux City, while January and December are the least comfortable months.

Boise City

The annual BestPlaces Comfort Index for Boise is 7.3 (10=best), which means it is one of the most pleasant places in Idaho.

7.3 / 10
September, June and May are the most pleasant months in Boise, while December and January are the least comfortable months.

Today's Weather - Boise City, ID

1 PM PST

Sunny

61°F

DAYDESCRIPTIONHIGH / LOWWIND
This AfternoonSunny67° / 45°NW 6 mph
TuesdayMostly Sunny66° / 40°WNW 2 to 9 mph
WednesdaySunny71° / 49°WNW 5 mph
ThursdaySlight Chance Rain Showers then Mostly Sunny74° / 46°NW 3 to 9 mph
FridaySunny77° / 51°WNW 2 to 7 mph
SaturdaySlight Chance Rain Showers73° / 48°NW 5 to 10 mph
SundaySunny80° / 53°NW 3 to 7 mph
Today's Weather - Sioux City, IA

1 PM PST

Showers And Thunderstorms Likely

60°F

DAYDESCRIPTIONHIGH / LOWWIND
This AfternoonShowers And Thunderstorms Likely62° / 48°ESE 20 mph
TuesdayShowers And Thunderstorms Likely55° / 41°N 10 to 15 mph
WednesdayChance Rain Showers53° / 40°NW 15 mph
ThursdayPartly Sunny63° / 40°NNW 10 mph
FridayChance Rain Showers64° / 48°SE 0 to 5 mph
SaturdayChance Showers And Thunderstorms68° / 50°ESE 5 to 10 mph
SundayChance Showers And Thunderstorms67° / 49°ESE 10 mph
Average Monthly High / Low (°F)
MonthBoise City, IDSioux City, IA
January38° / 24°30° / 10°
February46° / 27°34° / 14°
March56° / 33°47° / 25°
April64° / 38°62° / 36°
May73° / 45°73° / 49°
June82° / 52°82° / 59°
July92° / 58°86° / 63°
August90° / 56°83° / 61°
September80° / 48°76° / 50°
October66° / 39°63° / 38°
November49° / 31°46° / 25°
December38° / 23°31° / 13°
Hot, Freezing, Rainy, Snowy Days: Boise City / Sioux City
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 024 / 3110 / 54 / 4
February0 / 020 / 279 / 42 / 3
March0 / 013 / 2410 / 71 / 3
April0 / 07 / 119 / 90 / 1
May2 / 12 / 18 / 100 / 0
June7 / 40 / 05 / 100 / 0
July20 / 70 / 03 / 80 / 0
August17 / 50 / 02 / 80 / 0
September5 / 21 / 14 / 70 / 0
October0 / 06 / 96 / 60 / 0
November0 / 016 / 2311 / 62 / 2
December0 / 026 / 3011 / 54 / 4
July is the hottest month for Boise with an average high temperature of 91.6°, which ranks it as one of the hottest places in Idaho. In Boise, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boise are September, June and May.

July is the hottest month for Sioux City with an average high temperature of 85.5°, which ranks it as warmer than most places in Iowa. In Sioux City, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sioux City are September, June and August.
December has the coldest nighttime temperatures for Boise with an average of 22.7°. This is warmer than most places in Idaho.

January has the coldest nighttime temperatures for Sioux City with an average of 9.6°. This is about average compared to other places in Iowa.

In Boise, there are 51.0 days annually when the high temperature is over 90°, which is one of the hottest places in Idaho.

In Sioux City, there are 19.8 days annually when the high temperature is over 90°, which is one of the hottest places in Iowa.

In Boise, there are 114.9 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Idaho.

In Sioux City, there are 155.6 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.

In Boise, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.

In Sioux City, there are 18.9 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Iowa.

December is the wettest month in Boise with 1.9 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 35% of yearly precipitation and 10% occurs in Autumn, which is the driest season. The annual rainfall of 13.0 inches in Boise means that it is about average compared to other places in Idaho.


June is the wettest month in Sioux City with 4.1 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 37% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 29.5 inches in Sioux City means that it is one of the driest places in Iowa.

December is the rainiest month in Boise with 11.3 days of rain, and August is the driest month with only 2.3 rainy days. There are 87.0 rainy days annually in Boise, which is less rainy than most places in Idaho. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 12% chance of a rainy day.

May is the rainiest month in Sioux City with 10.3 days of rain, and February is the driest month with only 4.1 rainy days. There are 83.7 rainy days annually in Sioux City, which is one of the least rainy places in Iowa. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 17.5 inches in Boise means that it is less snowy than most places in Idaho.

An annual snowfall of 32.3 inches in Sioux City means that it is snowier than most places in Iowa.
December is the snowiest month in Boise with 6.4 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Sioux City with 7.3 inches of snow, and 6 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 Boise 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

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Reviews for Sioux 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

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Zips In Boise City, Idaho
83709, 83704, 83706, 83713, 83705, 83702, 83716, 83703, 83712
Zips In SIOUX CITY, IOWA
51106, 51104, 51103, 51105, 51108, 51109, 51101, 51111
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