Average Temperatures for Idaho in April





Average temperatures for April at cities, towns, parks and lakes throughout Idaho are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Eastern, Central, Southwestern and Northern Idaho.

The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Eastern Idaho

Average April temperatures
High °F Low °F Place High °C Low °C
54 28 Driggs 12 -3
58 31 Idaho Falls 14 0
47 23 Island Park 9 -5
60 32 Malad City 15 0
61 37 Pocatello 16 3
59 33 Preston 15 0
55 31 Saint Anthony 13 -1

Central Idaho

Average daily temperatures in April
High °F Low °F Place High °C Low °C
50 26 Craters of the Moon Monument 10 -4
52 27 Ketchum 11 -3
60 33 Lake Walcott, Minidoka Dam 16 0
57 31 Middle Fork Lodge 14 -1
59 32 Salmon 15 0
58 35 St. Maries 14 2
50 18 Stanley, Sawtooth Recreation Area 10 -8
59 35 Twin Falls 15 2

Southwestern Idaho

April temperatures: daily averages
High °F Low °F Place High °C Low °C
62 40 Boise 17 4
64 42 Brownlee Reservoir Dam 18 5
68 40 Bruneau 20 5
56 28 Idaho City 13 -3
65 38 Lake Lowell, Deer Flat Dam 18 4
51 27 McCall 10 -3
63 36 Mountain Home 17 2

Northern Idaho

Average April temperatures
High °F Low °F Place High °C Low °C
59 36 Bonners Ferry 15 2
56 37 Coeur d’Alene 13 3
53 27 Elk City 12 -3
58 32 Kellogg 14 0
62 41 Lewiston 17 5
58 32 Moscow 14 0
55 32 Mullan 13 0
60 34 Porthill 16 1
53 29 Powell 12 -2
62 35 Riggins 17 1
56 35 Sandpoint 13 1
55 34 Wallace 13 1
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Idaho Temperatures
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