Mild
Average highs are around 22°C, so days are mild rather than hot.
May verdict
Good for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 11h per day, so bright days are a strong part of the month. Rainfall averages 27mm, which is relatively low for holiday planning.
Monthly averages
Temp
22°C
Rain
27mm
Sun
11h
Weather score
62
Good
Mild
Average highs are around 22°C, so days are mild rather than hot.
Drier
Rainfall averages 27mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Map
Compare Boise, Idaho, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
May22°C average high
May is close to Boise's yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
May27mm average rain
May is close to Boise's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
May11 hours average sun
May is brighter than Boise's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
May62 weather score
May sits close to Boise's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.