Idaho Climate (Weather Averages)

The Idaho Climate Guide is perfect for planning your holiday. Monthly weather averages give the best indication of what the weather is usually like for every month of the year including figures for temperature, rainfall and sunshine.

Idaho Weather Idaho Summary Idaho Climate Idaho Today Idaho Forecast Idaho When Best
Idaho Weather Idaho Summary Idaho Climate Idaho Today Idaho Forecast Idaho When Best
J F M A M J J A S O N D
Max Daytime Temperature (°C) 3°C (37°F) Max Daytime Temperature in January in Idaho (Boise) 7°C (45°F) Max Daytime Temperature in February in Idaho (Boise) 12°C (54°F) Max Daytime Temperature in March in Idaho (Boise) 17°C (63°F) Max Daytime Temperature in April in Idaho (Boise) 22°C (72°F) Max Daytime Temperature in May in Idaho (Boise) 27°C (81°F) Max Daytime Temperature in June in Idaho (Boise) 33°C (91°F) Max Daytime Temperature in July in Idaho (Boise) 32°C (90°F) Max Daytime Temperature in August in Idaho (Boise) 26°C (79°F) Max Daytime Temperature in September in Idaho (Boise) 19°C (66°F) Max Daytime Temperature in October in Idaho (Boise) 10°C (50°F) Max Daytime Temperature in November in Idaho (Boise) 3°C (37°F) Max Daytime Temperature in December in Idaho (Boise)
Min Night-time Temperature (°C) -6°C (21°F) Min Night-time Temperature in January in Idaho (Boise) -3°C (27°F) Min Night-time Temperature in February in Idaho (Boise) -1°C (30°F) Min Night-time Temperature in March in Idaho (Boise) 2°C (36°F) Min Night-time Temperature in April in Idaho (Boise) 6°C (43°F) Min Night-time Temperature in May in Idaho (Boise) 11°C (52°F) Min Night-time Temperature in June in Idaho (Boise) 14°C (57°F) Min Night-time Temperature in July in Idaho (Boise) 13°C (55°F) Min Night-time Temperature in August in Idaho (Boise) 8°C (46°F) Min Night-time Temperature in September in Idaho (Boise) 3°C (37°F) Min Night-time Temperature in October in Idaho (Boise) -1°C (30°F) Min Night-time Temperature in November in Idaho (Boise) -5°C (23°F) Min Night-time Temperature in December in Idaho (Boise)
Hours of Sunshine (Daily) 4 Hours of Bright Sunshine per day (38% of Daylight Hours) in January in Idaho (Boise) 5 Hours of Bright Sunshine per day (51% of Daylight Hours) in February in Idaho (Boise) 8 Hours of Bright Sunshine per day (64% of Daylight Hours) in March in Idaho (Boise) 9 Hours of Bright Sunshine per day (69% of Daylight Hours) in April in Idaho (Boise) 11 Hours of Bright Sunshine per day (73% of Daylight Hours) in May in Idaho (Boise) 12 Hours of Bright Sunshine per day (76% of Daylight Hours) in June in Idaho (Boise) 13 Hours of Bright Sunshine per day (86% of Daylight Hours) in July in Idaho (Boise) 12 Hours of Bright Sunshine per day (83% of Daylight Hours) in August in Idaho (Boise) 10 Hours of Bright Sunshine per day (80% of Daylight Hours) in September in Idaho (Boise) 8 Hours of Bright Sunshine per day (69% of Daylight Hours) in October in Idaho (Boise) 4 Hours of Bright Sunshine per day (40% of Daylight Hours) in November in Idaho (Boise) 3 Hours of Bright Sunshine per day (38% of Daylight Hours) in December in Idaho (Boise)
Hours of Daylight (Daily) 9 Hours of Daylight in January in Idaho (Boise) 11 Hours of Daylight in February in Idaho (Boise) 12 Hours of Daylight in March in Idaho (Boise) 13 Hours of Daylight in April in Idaho (Boise) 15 Hours of Daylight in May in Idaho (Boise) 15 Hours of Daylight in June in Idaho (Boise) 15 Hours of Daylight in July in Idaho (Boise) 14 Hours of Daylight in August in Idaho (Boise) 12 Hours of Daylight in September in Idaho (Boise) 11 Hours of Daylight in October in Idaho (Boise) 10 Hours of Daylight in November in Idaho (Boise) 9 Hours of Daylight in December in Idaho (Boise)
Heat and Humidity Discomfort No Heat & Humidity in January in Idaho (Boise) No Heat & Humidity in February in Idaho (Boise) No Heat & Humidity in March in Idaho (Boise) No Heat & Humidity in April in Idaho (Boise) No Heat & Humidity in May in Idaho (Boise) Low Heat & Humidity in June in Idaho (Boise) Moderate Heat & Humidity in July in Idaho (Boise) Moderate Heat & Humidity in August in Idaho (Boise) No Heat & Humidity in September in Idaho (Boise) No Heat & Humidity in October in Idaho (Boise) No Heat & Humidity in November in Idaho (Boise) No Heat & Humidity in December in Idaho (Boise)
Days with some Rainfall 12 Days with some Rainfall in January in Idaho (Boise) 10 Days with some Rainfall in February in Idaho (Boise) 10 Days with some Rainfall in March in Idaho (Boise) 8 Days with some Rainfall in April in Idaho (Boise) 7 Days with some Rainfall in May in Idaho (Boise) 6 Days with some Rainfall in June in Idaho (Boise) 3 Days with some Rainfall in July in Idaho (Boise) 3 Days with some Rainfall in August in Idaho (Boise) 4 Days with some Rainfall in September in Idaho (Boise) 6 Days with some Rainfall in October in Idaho (Boise) 10 Days with some Rainfall in November in Idaho (Boise) 11 Days with some Rainfall in December in Idaho (Boise)
Monthly Rainfall (mm) 40 mm (1.6 inches) Monthly Rainfall in January in Idaho (Boise) 29 mm (1.1 inches) Monthly Rainfall in February in Idaho (Boise) 32 mm (1.3 inches) Monthly Rainfall in March in Idaho (Boise) 31 mm (1.2 inches) Monthly Rainfall in April in Idaho (Boise) 30 mm (1.2 inches) Monthly Rainfall in May in Idaho (Boise) 24 mm (0.9 inches) Monthly Rainfall in June in Idaho (Boise) 8 mm (0.3 inches) Monthly Rainfall in July in Idaho (Boise) 11 mm (0.4 inches) Monthly Rainfall in August in Idaho (Boise) 18 mm (0.7 inches) Monthly Rainfall in September in Idaho (Boise) 20 mm (0.8 inches) Monthly Rainfall in October in Idaho (Boise) 39 mm (1.5 inches) Monthly Rainfall in November in Idaho (Boise) 36 mm (1.4 inches) Monthly Rainfall in December in Idaho (Boise)
UV Index (Maximum) UV (Maximum) Index 1 (Low) in January in Idaho (Boise) UV (Maximum) Index 2 (Low) in February in Idaho (Boise) UV (Maximum) Index 4 (Moderate) in March in Idaho (Boise) UV (Maximum) Index 6 (High) in April in Idaho (Boise) UV (Maximum) Index 7 (High) in May in Idaho (Boise) UV (Maximum) Index 9 (Very High) in June in Idaho (Boise) UV (Maximum) Index 9 (Very High) in July in Idaho (Boise) UV (Maximum) Index 8 (Very High) in August in Idaho (Boise) UV (Maximum) Index 6 (High) in September in Idaho (Boise) UV (Maximum) Index 4 (Moderate) in October in Idaho (Boise) UV (Maximum) Index 2 (Low) in November in Idaho (Boise) UV (Maximum) Index 1 (Low) in December in Idaho (Boise)
J F M A M J J A S O N D
 		    
 
Idaho Holidays Idaho Flights Idaho Hotels Idaho Hire Cars Idaho Villas Idaho Transfers
Idaho Holidays Idaho Flights Idaho Hotels Idaho Hire Cars Idaho Villas Idaho Transfers

The Idaho Climate Guide shown above is based on the Boise Climate Guide. Please note that the weather may vary across this region. Below is a list of all the destinations in Idaho with available Climate Guides.

  Boise   Coeur d'Alene   Idaho Falls   Lewiston   McCall   Salmon   Sun Valley   Twin Falls  

Idaho Weather by Month
Check the weather for a particular month in Idaho by selecting a month from the list below. Alternatively check which month usually has the Best Weather in Idaho. If you are not sure where to go, why not try our Holiday Planner.
  · January
  · February
  · March
   · April
  · May
  · June
   · July
  · August
  · September
   · October
  · November
  · December
Popular Climate Guide Regions

1.

Cyprus

2.

Tenerife, Canary Islands, Spain

3.

Tunisia

4.

Sharm el-Sheikh, Egypt

5.

Mauritius

6.

Crete, Greece

7.

Dalaman and Marmaris Coast, Turkey

8.

Cape Verde

9.

Rhodes, Greece

10.

Antalya Coast, Turkey
Popular Climate Guide Destinations

1.

Santa Cruz de Tenerife, Tenerife, Canary Islands, Spain

2.

Nicosia, Cyprus

3.

Sharm el Sheikh Airport, Sharm el-Sheikh, Egypt

4.

Tunis, Tunisia

5.

Port Louis, Mauritius

6.

Khania, Crete, Greece

7.

Dalaman, Dalaman and Marmaris Coast, Turkey

8.

Praia, Santiago, Cape Verde

9.

Rhodes Town, Rhodes, Greece

10.

Antalya, Antalya Coast, Turkey
 		    
 
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