Weather in Boise in May
In an average May, Boise sees a daily high around 73°F and a low around 48°F, based on 1980–2026 of local climate records.
| Average high | 73°F |
|---|---|
| Typical high range | 61°F to 87°F |
| Average low | 48°F |
| Typical low range | 39°F to 57°F |
| Average daily precipitation | 0.00 in |
May records
The most extreme May on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total May accumulation.
High
Highest
101°F
2003-05-28
Lowest
48°F
1983-05-09
Low
Highest
71°F
2009-05-19
Lowest
29°F
2022-05-10
Feels-like
Highest
105°F
2003-05-29
Lowest
17°F
1988-05-02
Humidity
Highest
12.3 g/m³
1984-05-14
Lowest
2.3 g/m³
2019-05-02
Wind
Highest
29 mph
2008-05-20
Lowest
4 mph
2003-05-11
Gust
Highest
52 mph
2008-05-21
Lowest
11 mph
1984-05-18
Precip
Wettest
5.16 in
1998
Driest
0.11 in
1992
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