KDAY James M Cox Dayton Intl

UNKNOWN

Unknown — not enough evidence to call a runway

We don't know, and saying so beats guessing. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. ADS-B tracking just started here — traffic history is still building. Wind calm — no directional preference.

certainty: — evidence: NONE Class C

Wind calm · VFR · 44 min old

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24R 17% 10901 ft

6L 17% 10901 ft

18 17% 8502 ft

36 17% 8502 ft

24L 16% 7285 ft

6R 16% 7285 ft

Active NOTAMs affecting runways

LIGHTING RWY 36 until 10-13 20:00Z

RWY 36 PAPI U/S

APCH OTS RWY 6L until 02-11 19:44Z

IAP JAMES M COX DAYTON INTL, DAYTON, OH. ILS RWY 6L (CAT II-III), AMDT 10 ... S-ILS 6L CAT II NA EXCEPT FOR AIRCRAFT EQUIPPED WITH RADAR ALTIMETER. I-ATD IM OUT OF SERVICE.

Why — evidence behind this answer

Runway 24R

PRIOR runway length 10901 ft +0.04

Runway 6L

PRIOR runway length 10901 ft +0.04

Runway 24L

PRIOR runway length 7285 ft -0.04

Runway 6R

PRIOR runway length 7285 ft -0.04

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	44 min
ADSB	WARMING_UP	2795 min	Only 0 min of track history so far
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (Only 0 min of track history so far)

Was this right?

KDAY field & runways

James M Cox Dayton Intl, Dayton, Ohio. Field elevation 1009 ft. Class C airspace. Towered. Magnetic variation 6.0°W on record, 6.4°W today.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.024°/year west — about 1° every 42 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against *today's* declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
Runway	True	Magnetic	Number	Length	Surface	Pattern	Notes
18	178.5°	184.9°	matches rule gives runway 19 in ~3 yr	8,502 ft	ASPH	left	ILS
24L	235.2°	241.6°	matches	7,285 ft	CONC	left	ILS
24R	235.2°	241.6°	matches	10,901 ft	ASPH-CONC	left	ILS
36	358.5°	4.9°	matches rule gives runway 1 in ~3 yr	8,502 ft	ASPH	left
6L	55.2°	61.6°	matches	10,901 ft	ASPH-CONC	left	ILS
6R	55.2°	61.6°	matches	7,285 ft	CONC	left

Generated 08:39:46Z · auto-refreshes · JSON

KDAY ☆ James M Cox Dayton Intl