Seasons in Idaho

The Pacific Ocean has a significant impact on western Idaho, where it is warm and humid. The central and eastern regions have a continental climate. 

The state has many mountain ranges, arid plains and fertile lowlands. Aidaho is often referred to in connection with gemstone deposits. The tourist season lasts a long time - from April to October.



Spring in Idaho

March in Idaho is considered the coldest month. It gets warmer in April. Average temperatures since March 41-60 °F (+5 °C +15 °C) reach a comfortable 61-67 °F (+16 °C +19 °C) and above. The amount of precipitation decreases. Rains and thunderstorms come again in May. Parks, forests and gardens are blooming.

The Channel Island National Park is the first to be cleared of snow. It is located in the southern part of the state. The famous Santa Barbara is located in the park. Most of the area is occupied by the ocean coast. The islands are represented by a mountain archipelago. One of the best activities in the park is diving and watching dolphins, whales, sea lions. The visit and the intention to stay in the tent camp must be taken care of in advance. Permission will be required.

Climate of the Spring Months

Max average t°: 53 °F (+12 °C)
Min average t°: 33 °F (0 °C)
Sundial in the day: 9.5 hours
Rainy days: 7 days
Precipitation: 1.5" (39 mm)
Max average t°: 61 °F (+16 °C)
Min average t°: 38 °F (+3 °C)
Sundial in the day: 11 hours
Rainy days: 6 days
Precipitation: 1.4" (35 mm)
Max average t°: 71 °F (+22 °C)
Min average t°: 46 °F (+8 °C)
Sundial in the day: 12.5 hours
Rainy days: 4 days
Precipitation: 1.3" (33 mm)


Spring Holidays

March 1st: National Women of Color Day.
March 17: St.Patrick 's Day.

April 1: April Fools' Day.
April 22: International Earth Day.

2nd Sunday of May: Mother’s Day.
last Monday in May: Memorial Day.

Summer in Idaho

Summers in Idaho are sunny and warm. Average temperatures range from 79 °F to 95 °F (+26 °C to +35 °C). Slightly cooler at night. The hottest month is July. Thunderstorm hurricanes are possible. The quietest month is August. During the summer, there are fires on the mountain slopes due to the heat.

During the summer, guests of the state can enjoy a variety of outdoor activities. You can sunbathe on the ocean front or take a long stroll through one of the national parks - Deer Flat Reserve, Lake Walcott, Heyburn and Dworshak. There are fishing, hunting, camping and picnic areas near Lake Lowell.

Climate of the Summer Months

Max average t°: 81 °F (+27 °C)
Min average t°: 55 °F (+12.5 °C)
Sundial in the day: 13.5 hours
Rainy days: 2 days
Precipitation: 0.6" (16 mm)
Max average t°: 92 °F (+33.5 °C)
Min average t°: 64 °F (+18 °C)
Sundial in the day: 13.5 hours
Rainy days: 1 day
Precipitation: 0.1" (3 mm)
Max average t°: 90 °F (+32 °C)
Min average t°: 62 °F (+17 °C)
Sundial in the day: 12.5 hours
Rainy days: 1 day
Precipitation: 0.2" (4 mm)


Summer Holidays

June 14: Day of the American flag.
June 19: Juneteenth National Independence Day.
Third Sunday of June: Father’s Day.

July 4: Independence Day.
August 26: Women's Equality Day.

Autumn in Idaho

The early fall in Idaho is still a great time for tourism. Temperatures in September are comfortable from 69 °F to 83 °F (+20 °C to +28 °C). In October, it gets cooler, 55-70 °F (+13 °C +21 °C). It will only get really cool in November - 32-53 °F  (0 °C +11 °C). Frosty nights of 30-32 °F (-1 °C 0 °C) are possible. Precipitation increases. ... However, the vibrant autumn colors, crisp invigorating air and picturesque wildlife make this time an attractive stroll.

We recommend visiting the Museum of the History of African American Culture. In the state capital, Boise, it is worth seeing the majestic Capitol Building and the Egyptian Theater. In cities at this time it is noisy and fun. Numerous festivals and harvest fairs take place.

Climate of the Autumn Months

Max average t°: 79 °F (+26 °C)
Min average t°: 53 °F (+12 °C)
Sundial in the day: 11 hours
Rainy days: 2 days
Precipitation: 0.4" (11 mm)
Max average t°: 64 °F (+18 °C)
Min average t°: 43 °F (+6 °C)
Sundial in the day: 9 hours
Rainy days: 3 days
Precipitation: 0.9" (23 mm)
Max average t°: 49 °F (+9 °C)
Min average t°: 32 °F (0 °C)
Sundial in the day: 7.5 hours
Rainy days: 6 days
Precipitation: 1.4" (36 mm)


Autumn Holidays

1st Monday in September: Labor Day.

2nd Monday in October: Columbus Day.
October 31: Halloween (All Hallows' Eve)

November 1: All Saints’ Day.
November 11: Veterans’ or Armistice Day.
4th Thursday in November: Thanksgiving Day.

Winter in Idaho

In winter, fog is a bigger problem than snowfall. High snow cover occurs only in the mountains. Sometimes high trails are impassable due to snowfall. On the plains, temperatures rarely drop below 27-42 °F (-3 °C +5 °C). In mountainous areas it is freezing cold, 15-32 °F (-9 °C 0 °C). There is more rainfall and snow cover reaches 5-15 inches  (120-380 mm) deep.

Winter activities depend on where you decide to spend your time. In the cities of Idaho, it is worth strolling through museums and theaters. National parks and reserves offer skiing and ice fishing. Especially picturesque at this time are the Lunar Craters National Reserve and the Sunny Valley ski resort.

Climate of the Winter Months

Max average t°: 38 °F (+3 °C)
Min average t°: 24 °F (-4 °C)
Sundial in the day: 6.5 hours
Snowy days: 8 days
Precipitation: 2.1" (53 mm)
Max average t°: 38 °F (+3 °C)
Min average t°: 23 °F (-5 °C)
Sundial in the day: 7 hours
Snowy days: 8 days
Precipitation: 1.9" (48 mm)
Max average t°: 43 °F (+6 °C)
Min average t°: 27 °F (-3 °C)
Sundial in the day: 8 hours
Snowy days: 7 days
Precipitation: 1.3" (34 mm)


Winter Holidays

December 25: Christmas Day.

January 1: New Year’s Day.
January 20 every fourth year: Inauguration Day.
3rd Monday in January: Martin Luther King, Jr. Day.
3rd Monday in January:  Idaho Human Rights Day

February 14: St. Valentine's Day.
3rd Monday in February: Washington’s Birthday.