United States · 1991–2020 normal

West Yellowstone in
May.

Typical May weather in West Yellowstone: 15.6°C by day, -2.3°C at night, 63 mm of rain over 9.8 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high15.6°C
Typical low-2.3°C
Rain63 mm
Wet days9.8

Comfort score 31 this month (August leads the year at 66). Daylight is calculated as 14 h 47 from latitude 44.66°.

Event window

Frost-level nights in May

The measured night-time normal is -2.3°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5685767
NOAA station
USS0011E07S · West Yellowstone
Station distance
1.1 km from the place centre
Coverage
Good coverage · 22 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.