When to Visit Boise

Grey skies and valley inversions are the defining mood. Clear days do break through. The foothills above Boise offer decent cross-country skiing when snow cooperates.

Slightly less harsh, and by late in the month you can occasionally feel the first tentative warmth of approaching spring. Don't bet on it.

Opens the transition season. The foothills start greening up noticeably by the final weeks. One of the more pleasant seasonal shifts Boise offers. Crowds are still low, which makes it a good time to get a feel for the city without navigating peak-season logistics.

feels like spring arrives in Boise. The 30mm of rainfall is spread across enough days to keep the landscape green. The Boise River is running high and fast with snowmelt.

Arguably one of Boise's most appealing months. Highs of 22°C (72°F) paired with lows of 8°C (47°F) produce the kind of warm-but-not-yet-scorching days that make everything feel easy. At 38mm, it's the wettest month of the year. Showers tend to be brief and the afternoons often clear beautifully.

Signals the start of the dry season proper. Only 18mm of rain falls, and most days are reliably clear. This is when Boise starts feeling like a summer city, and crowds reflect that with high season beginning in earnest.

Peak summer in Boise. It's dry, sunny, and hot in the middle of the day. The smart move is to front-load any outdoor plans before noon and return to the river greenbelt in the late afternoon when the light softens.

Closely mirrors July. You'll notice the foothills have turned golden-brown by now. The heat carries a particular stillness in the middle of the day that makes early mornings worthwhile.

Marks the shift back toward something more temperate. Only 10mm of rain falls. But the heat is measurably less intense and the light takes on an autumnal quality that makes Boise look good in photographs.

Brings a clear seasonal pivot. Around 20mm of rain falls and the city's trees turn, making the greenbelt and the residential neighborhoods worth walking.

Sees Boise transitioning back toward winter. Days shorten noticeably and the valley can feel a bit closed-in when inversions settle. Indoor Boise, its food scene, its music venues, picks up the slack.

Closes the year with the year's highest monthly rainfall at 38mm falling partly as snow. The city takes on a festive character through the holidays and empties out in the weeks that follow, leaving Boise quiet and peaceful for those who don't mind bundling up.