St. Louis/Regional

Airport
ICAO code: 
KALN
Summary
ICAO Region: 
NAM
Territory: 
Location: 
Alton, Madison County, Illinois,
Coordinates: 
Aerial View: 
38° 53' 25.083" N, 90° 2' 45.591" W
Metar
Observation
KALN 301450Z 34006KT 10SM CLR 08/03 A3011
Station
Alton/St. Louis, St. Louis Regional Airport
Date/Time
2021-11-30 14:50:00
Wind direction
340°
Wind speed
06 kts
Lowest cloud amount
n/a
Temperature
8°C
Dew point
3°C
Humidity
70%
Weather condition
n/a

Description

St. Louis Regional Airport is a public airport located 6 km east of the central business district of Alton, a city in Madison County, Illinois, United States.

The St. Louis metropolitan area is also served by Lambert-St. Louis International Airport in St. Louis, Missouri; MidAmerica St. Louis Airport in Belleville, Illinois; St. Louis Downtown Airport in Cahokia, St. Clair County, Illinois; and Spirit of St. Louis Airport in Chesterfield, Missouri.

Climatology

St. Louis lies in the transition between a humid subtropical and humid continental climate (Köppen climate classification Cfa/Dfa), with neither large mountains nor large bodies of water to moderate its temperature. It is subject to both cold Arctic air and hot, humid tropical air from the Gulf of Mexico. Spring is the wettest season and produces erratic severe weather ranging from tornadoes to winter storms. Summers are hot and humid. Winters are cold with periodic snow and temperatures often below freezing. Winter storm systems, can bring days of heavy freezing rain, ice pellets, and snowfall.

Runways

Designator Length Width Surface Rops
17/35 1981 30 ASP Yes/Yes
11/29 2469 46 ASP Yes/Yes
Airport map: 
Aerial View: 

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