2024 Compare Climate & Weather:
Union, WA vs Boise City, ID
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Highlights
On average, there are 206 sunny days per year in Boise City. Union averages 136 sunny days per year. The US average is 205 sunny days.
Boise City, Idaho gets 13 inches of rain, on average, per year. Union, Washington gets 70.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Boise City averages 17.5 inches of snow per year. Union averages 3.6 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
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
Union, Washington
Summer High: the July high is around 75.6 degrees
Winter Low: the January low is 34.5
Rain: averages 70.1 inches of rain a year
Snow: averages 3.6 inches of snow a year
BESTPLACES COMFORT INDEX
Boise CityThe 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.
UnionThe annual BestPlaces Comfort Index for Union is 7.1 (10=best), which means it is about average compared to other places in Washington.
7.1 / 10
July, August and September are the most pleasant months in Union, while December and January are the least comfortable months.
Today's Weather - Union, WA
12 AM PST
Chance Light Rain
54°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Chance Light Rain | 58° / 45° | WSW 21 mph |
| Monday | Showers And Thunderstorms | 54° / 40° | WSW 14 to 18 mph |
| Tuesday | Chance Light Rain | 58° / 39° | W 7 to 15 mph |
| Wednesday | Mostly Sunny | 63° / 43° | ESE 3 to 9 mph |
| Thursday | Sunny | 73° / 51° | NE 3 to 10 mph |
| Friday | Sunny | 79° / 54° | NE 5 to 10 mph |
| Saturday | Sunny | 83° / 54° | ENE 5 to 8 mph |
Today's Weather - Boise City, ID
12 AM PST
Chance Rain Showers
41°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Chance Rain Showers | 50° / 38° | W 10 mph |
| Monday | Chance Showers And Thunderstorms | 56° / 37° | WNW 12 mph |
| Tuesday | Partly Sunny then Chance Rain Showers | 52° / 35° | WNW 15 to 21 mph |
| Wednesday | Mostly Sunny | 60° / 37° | NW 9 to 16 mph |
| Thursday | Mostly Sunny | 67° / 44° | NW 6 to 10 mph |
| Friday | Sunny | 74° / 48° | SSE 6 to 10 mph |
| Saturday | Sunny | 78° / 50° | S 6 to 10 mph |
Average Monthly High / Low (°F)
| Month | Union, WA | Boise City, ID |
|---|
| January | 46° / 35° | 38° / 24° |
| February | 49° / 34° | 46° / 27° |
| March | 54° / 36° | 56° / 33° |
| April | 59° / 39° | 64° / 38° |
| May | 65° / 45° | 73° / 45° |
| June | 70° / 49° | 82° / 52° |
| July | 76° / 52° | 92° / 58° |
| August | 76° / 52° | 90° / 56° |
| September | 71° / 48° | 80° / 48° |
| October | 60° / 42° | 66° / 39° |
| November | 50° / 38° | 49° / 31° |
| December | 44° / 34° | 38° / 23° |
Hot, Freezing, Rainy, Snowy Days: Union / Boise City
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 11 / 24 | 20 / 10 | 0 / 4 |
| February | 0 / 0 | 10 / 20 | 15 / 9 | 1 / 2 |
| March | 0 / 0 | 7 / 13 | 19 / 10 | 0 / 1 |
| April | 0 / 0 | 3 / 7 | 16 / 9 | 0 / 0 |
| May | 0 / 2 | 0 / 2 | 12 / 8 | 0 / 0 |
| June | 0 / 7 | 0 / 0 | 9 / 5 | 0 / 0 |
| July | 1 / 20 | 0 / 0 | 5 / 3 | 0 / 0 |
| August | 1 / 17 | 0 / 0 | 5 / 2 | 0 / 0 |
| September | 0 / 5 | 0 / 1 | 7 / 4 | 0 / 0 |
| October | 0 / 0 | 2 / 6 | 14 / 6 | 0 / 0 |
| November | 0 / 0 | 6 / 16 | 20 / 11 | 0 / 2 |
| December | 0 / 0 | 11 / 26 | 19 / 11 | 1 / 4 |
August is the hottest month for Union with an average high temperature of 76.4°, which ranks it as cooler than most places in Washington. In Union, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Union are August, July and September.
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.
December has the coldest nighttime temperatures for Union with an average of 33.7°. This is warmer than most places in Washington.
December has the coldest nighttime temperatures for Boise with an average of 22.7°. This is warmer than most places in Idaho.
In Union, there are 3.0 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.
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 Union, there are 50.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.
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 Union, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.
In Boise, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.
November is the wettest month in Union with 12.3 inches of rain, and the driest month is July with 0.9 inches. The wettest season is Spring with 44% of yearly precipitation and 6% occurs in Autumn, which is the driest season. The annual rainfall of 70.1 inches in Union means that it is wetter than most places in Washington.
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.
November is the rainiest month in Union with 20.4 days of rain, and July is the driest month with only 4.5 rainy days. There are 160.8 rainy days annually in Union, which is about average compared to other places in Washington. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 12% chance of a rainy day.
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.
An annual snowfall of 3.6 inches in Union means that it is less snowy than most places in Washington.
An annual snowfall of 17.5 inches in Boise means that it is less snowy than most places in Idaho.
December is the snowiest month in Union with 1.1 inches of snow, and 3 months of the year have significant snowfall.
December is the snowiest month in Boise with 6.4 inches of snow, and 5 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.
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 Boise City 
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 Boise City
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