Record Hottest and Coldest Weather Temperatures Ever Recorded in Boise, Idaho

Weather temperatures have been officially kept in Boise, Idaho since 1875. These are the all-time record hottest and coldest temperatures ever recorded in Boise since 1875.

Located along the Boise River in southwestern Idaho, the capital city of Boise has a much milder climate than the extremes found in the Gem State. This is born out by the differences between the all-time hottest and coldest temperatures ever recorded in Boise, compared to the all-time hottest and coldest temperatures recorded in Idaho.

The difference between the all-time hottest and coldest temperatures ever recorded in Boise is 139 degrees. The difference between the all-time hottest and coldest temperatures ever recorded in the state of Idaho is 178 degrees; a difference of 39 degrees.

Idaho is one of the most extreme states in the United States by temperatures.

Record Hottest and Coldest Temperatures Ever Recorded in Boise, Idaho

All-time Record Hottest Temperature Ever Recorded in Boise is 111 Degrees

The hottest weather temperature ever officially recorded in the city of Boise is 111 degrees, which has occurred on two different dates. The first time it was a record 111 degrees in Boise was on July 12, 1898, and the second time was on July 19, 1960.

Days when the temperature reaches or exceeds 100 degrees are fairly common in Boise, as the city averages eight days a year when the temperature climbs to or above the century mark. Boise averages 44 days a year when the temperature climbs to 90 degrees or above.

Boise is the capital city of Idaho, and there are a lot of visitor attractions in and around the city for tourists. That includes the Idaho State Capitol building, the Boise River Greenbelt, which is a series of hiking and biking trails connecting parks along the river, Zoo Boise, the Idaho Aquarium, the World Center for Birds of Prey, and the blue turf Bronco Stadium where the Boise State Broncos play college football.

I've been to Boise a few times in the summer, and the city was much hotter than I would have expected. I think most people not from Idaho would think the state is a cold place, but parts of the Gem State can really get hot in the summer.

• Hottest Temperature Ever Recorded in Idaho is 118 Degrees 

The all-time record hottest weather temperature ever recorded in the state of Idaho is 118 degrees, which occurred on July 28, 1934, in Orofino, which is located about 250 miles north of Boise.

The difference between the all-time hottest temperature ever recorded in Boise (111) and the all-time hottest temperature ever recorded in the state of Idaho (118) is seven degrees. A decent sized statistical difference.

All-time Record Coldest Temperature Ever Recorded in Boise is -28 Degrees

The coldest temperature ever officially recorded in Boise is -28 degrees, which occurred on January 16, 1888.

Boise can get pretty cold in the winter, as the city averages around three days a year when the temperature drops below zero, and has had nine days since 1875 when the temperature dropped below -20 degrees. Boise averages 123 days a year when the temperature drops below the freezing mark.

• Coldest Temperature Ever Recorded in Idaho is -60 Degrees 

The coldest weather temperature ever officially recorded in the state of Idaho is -60 degrees, which occurred on January 18, 1943, at Island Park Dam, which is located about 200 miles east of Boise as the crow flies.

The difference between the all-time coldest temperature ever recorded in Boise (-28) and the all-time coldest temperature ever recorded in the state of Idaho (-60) is 32 degrees. A huge statistical difference.

Overall, the city of Boise has a milder climate than the extremes in Idaho. While Boise can get very hot in the summer, and very cold in the winter, the extreme temperatures found in the state of Idaho are much higher in the summer and a lot lower in the winter.