John Glenn Columbus International Airport

KCMH / CMH

Columbus, US

Last Updated
Apr 21, 14:51Z

Current Weather

Display Units
Fresh 21 min ago
14:51Z

☀️ Day
VFR
Flight Rules
14°C
Temperature
Dewpoint: -3°C
15 kt
190° G20 kt
10 SM
Visibility
Ceiling
Unlimited
1023 hPa
QNH
Altimeter Setting

Raw METAR

METAR KCMH 211451Z 19015G20KT 10SM SCT250 14/M03 A3021 RMK AO2 SLP232 T01391033 58018

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 815 ft
SCT 25,000 ft AGL
SCT
Scattered (3/8-4/8 sky coverage)
25,000 ft
AGL (Above Ground)
25,815 ft AMSL

Weather Briefing

VFR

John Glenn Columbus International Airport is currently reporting visual flight rules (VFR) conditions with scattered clouds at 25,000 feet and 10 SM visibility.

Wind Analysis

Winds are from the south (190°) at 15 knots with gusts to 20 knots. Runway 10L/28R is favored with a 0-knot headwind and 15-knot crosswind component (gusting to 20 knots crosswind). Student pilots and low-time aviators should exercise caution.

Visibility & Ceiling

Visibility is 10 SM. No ceiling exists. Cloud layers reported: scattered at 25,000 ft.

Temperature & Moisture

Temperature is 14°C (57°F) with a dewpoint of -3°C, indicating very dry conditions.

Forecast Outlook

The TAF forecast covers the next 24 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions. Expected weather includes: Light Showers Rain. There is a 30% probability of MVFR conditions with Light Showers Rain between 05:00Z and 07:00Z.

Pilot Recommendations

Conditions are favorable for visual flight. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1023 hPa
Sea Level Pressure
For altitude above MSL
QFE
996 hPa
Field Pressure
Height above aerodrome (815 ft)
Pressure Alt
523 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 599 ft
ISA Deviation: +0.6°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KCMH 211120Z 2112/2212 17008KT P6SM SKC FM211500 21015G27KT P6SM SCT050 FM212300 23012KT P6SM SCT120 FM220200 22010KT P6SM BKN080 WS020/25040KT PROB30 2205/2207 5SM -SHRA OVC050 FM220700 24012KT P6SM -SHRA OVC050
Upcoming Changes (Next 12 Hours)
15:12Z BASE
+0h
VFR 170° 8 kt
Visibility: >6SM
23:00Z FM212300
+8h
VFR 230° 12 kt
Visibility: >6SM
02:00Z FM220200
+11h
VFR 220° 10 kt
Visibility: >6SM
Ceiling: 8,000 ft

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
  • • Hover for exact values and timestamps
  • • Click legend items to toggle data series
  • • Zoom and pan for detailed analysis
  • • Units automatically converted to preferences
Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
CMH
10L
28R ✈️
10R
28L ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 10L/28R
Active: 28R
8,000 ft 150 ft ASP 94°
0.0 kt 15.0 kt
90° angle
✈️ 10R/28L
Active: 28L
10,125 ft 150 ft ASP 94°
0.0 kt 15.0 kt
90° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KCMH

8,039 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
67.3%
MVFR
23.1%
IFR
7%
LIFR
2.5%

John Glenn Columbus International Airport typically experiences VFR conditions 67.3% of the time, though instrument-rated pilots will find IFR weather present approximately 9.5% of observations. Prevailing winds are from the W averaging 8.8 knots, with gusts recorded up to 37 knots. Calm conditions occur 11.5% of the time. Temperature extremes range from -22°C to 31°C, reflecting significant seasonal variation. The best months for VFR flying are September, April, October.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 8.8 kt
Maximum Recorded: 37 kt
Calm Winds: 11.5%
Direction Distribution:
N
10%
NE
5.4%
E
6.7%
SE
9.1%
S
17.4%
SW
12.4%
W
18.2%
NW
9.4%

Temperature Range

Average: 6.1°C
Range: -22°C to 31°C
-22°C 31°C

Visibility

Average: 8.8 SM
Below 3 SM: 2.7%
Fog Frequency: 2.8%

Best Months for VFR

September April October

Runway Wind Analysis

Runway 10L/28R
Favorable wind: 100%
Avg crosswind: 5.3 kt
Runway 10R/28L
Favorable wind: 100%
Avg crosswind: 5.3 kt

Statistics computed from 8,039 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

John Glenn Columbus International Airport - Airport Information

Airport Details

ICAO Code: KCMH
IATA Code: CMH
Type: large airport
Status: active
Elevation: 815 ft MSL

Location

City: Columbus
Country: US
Latitude: 39.998001°
Longitude: -82.891899°
Time Zone: Etc/GMT+6

Runway Information

Runway 10L/28R
Length: 8,000 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 10R/28L
Length: 10,125 ft
Width: 150 ft
Surface: ASP
ILS: No

About John Glenn Columbus International Airport

Overview

John Glenn Columbus International Airport serves as a major aviation hub for central Ohio, located in the state capital of Columbus. Situated at an elevation of 815 feet MSL, the airport provides critical commercial and cargo transportation services for the metropolitan region. Its two substantial runways (10L/28R at 8000ft and 10R/28L at 10,125ft) support a wide range of aircraft operations.

Flying Conditions

Central Ohio experiences variable weather conditions that can significantly impact flight operations throughout the year. The airport's moderate elevation and midwestern location mean pilots should anticipate potential wind shifts, particularly during seasonal transition periods. Temperature and pressure variations can create challenging approach conditions, especially during winter and early spring months.

Notable Features

The airport's dual parallel runways (10L/28R and 10R/28L) provide operational flexibility for different aircraft types and wind conditions. Both runways are constructed with asphalt surfaces, capable of handling large commercial aircraft and providing substantial landing/takeoff infrastructure. The airport's geographic position allows for relatively straightforward navigation approaches from multiple directions.

Approach Considerations

Runway orientation (10/28) suggests prevailing wind patterns typically favor east-west approaches. The substantial runway lengths (8000ft and 10,125ft) accommodate a diverse range of aircraft, from regional commuters to larger commercial jets. Pilots should prepare for potential crosswind conditions and be prepared to utilize the full runway length during challenging meteorological scenarios.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.