United States · 1991–2020 normal
Alton in
May.
Typical May weather in Alton: 23.7°C by day, 13.8°C at night, 139 mm of rain over 9.9 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high23.7°C
Typical low13.8°C
Rain139 mm
Wet days9.9
Comfort score 76 this month (September leads the year at 80). Daylight is calculated as 14 h 16 from latitude 38.89°.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4232679
- NOAA station
- USC00110137 · ALTON - MELVIN PRICE L&D
- Station distance
- 4 km from the place centre
- Coverage
- Strong coverage · 26 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.