KDAY Runway 18/36 — James M. Cox Dayton International Airport
8,502 × 150 ft pem · true headings 179° / 359° · field elevation 1,009 ft
Runway 18/36 at James M. Cox Dayton International Airport (KDAY) in Dayton, OH is 8,502 ft long and 150 ft wide, pem, with true headings 179° and 359°. Over 2005–2025 the wind gave runway 18 the headwind 57.7% of the time and runway 36 42.3%, with a crosswind above 15 kt in 3.6% of wind hours. KDAY has no digital ATIS, so the active runway is not known; the wind-favored end and the ATIS Alerts prediction are estimates.
Runway 18/36 — current status
STATUS UNKNOWN- No received NOTAM closes or restricts this runway, but the NOTAM stream has no complete initial load and the airport has no tower or D-ATIS feed. No current closure information.
Sources: FAA runway record (OurAirports) · FAA NOTAMs. Runway NOTAMs stream live from the FAA NOTAM Management Service (SWIM); the official text is shown verbatim below the card. Always confirm with a current briefing.
No received NOTAM currently names runway 18/36 at KDAY. NOTAMs are received live from the FAA NOTAM Management Service through SWIM and recorded since Sep 19, 2026; a NOTAM issued before that and not re-issued since may be missing. Get a full briefing before flight.
Current runway assignment is not available from D-ATIS at KDAY. The wind components below show which end the wind favors; the section after it is an ATIS Alerts prediction. Neither is an ATC assignment.
Current wind on Runway 18/36
Wind from the northeast (040°) at 7 kt
- Tailwind
- 5 kt
- Crosswind
- 5 ktfrom left
- Headwind
- 5 kt
- Crosswind
- 5 ktfrom right
Wind-favored runway at KDAY right now: 06L (7 kt headwind) — a different runway than this one.
Components use TRUE runway headings and TRUE METAR wind. “Favored by wind” is arithmetic, not an ATC assignment.
ATIS Alerts Predicted Runway
Which runway at KDAY is likely to be in use over the next 12 hours — an estimate, not an ATC assignment.
| Time | Likely runway | Confidence | Wind |
|---|---|---|---|
| Now0229Z · 10:29 PM EDT | 06Lthen 06R | Low53% | 040° at 7 kt |
| +1 h0329Z · 11:29 PM EDT | 06Lthen 06R | Low50% | 070° at 7 kt |
| +2 h0429Z · 12:29 AM EDT | 06Lthen 06R | Low47% | 070° at 7 kt |
| +3 h0529Z · 1:29 AM EDT | 06Lthen 06R | Low44% | 070° at 7 kt |
| +6 h0829Z · 4:29 AM EDT | 06Lthen 06R | Low35% | 070° at 7 kt |
| +12 h1429Z · 10:29 AM EDT | 18then 06L | Low20% | 120° at 7 kt |
ATIS Alerts Predicted Runway is an estimate from the TAF wind forecast and runway geometry (most headwind, crosswind penalised, tailwind over 5 kt avoided, longest runway breaks ties). It is not an ATC assignment and does not know about noise abatement, traffic flow or construction unless the D-ATIS states them. TAF issued 2325Z (7:25 PM EDT).
- GDP → DEN · since 09/18 2200Z · by DCC · Weather:Thunderstorms: — ground delay program
- GDP → SAN · since 09/19 0000Z · by DCC · Volume/Terminal:Volume: — ground delay program
- GDP → SFO · since 09/19 0200Z · by DCC · Volume/Terminal:Volume: — ground delay program
- APREQ → CLT/ORD/DTW/ATL/LGA/DCA/MDW/PHL/EWR/IAD/DFW/IAH · since 08/24 1807Z · until further notice — approval request — departures need a release time
- APREQ → MMUN · since 09/03 0200Z · until further notice · by ZTL — approval request — departures need a release time
- APREQ → KSEA · since 09/03 2351Z · until further notice · by ZNY — approval request — departures need a release time
Restrictions on departures from KDAYtoward the named airports or fixes, as recorded by the tower's surface system; they change the departure flow, not the runway in use. Not an FAA product.
Runway 18/36 overview
Physical characteristics from the FAA-derived runway record.
- Length
- 8,502 ft
- Width
- 150 ft
- Surface
- Partially concrete/asphalt
- Runway lights
- Lighted
- Airport elevation
- 1,009 ft
- FAA record status
- Open
- True heading
- 179°
- Magnetic (approx.)
- ≈ 185°
- FAA record
- Open
- True heading
- 359°
- Magnetic (approx.)
- ≈ 005°
- FAA record
- Open
Runway 18/36 numbers are magnetic; the stored geometry and every wind calculation on this page are TRUE north, so they never need a variation correction. Magnetic variation here is about 6.4°W (World Magnetic Model). Displaced thresholds, declared distances (TORA/TODA/ASDA/LDA), approach lighting, PAPI/VASI, ILS equipment and traffic-pattern direction are FAA NASR fields not yet loaded — they are omitted rather than guessed.
Wind-favored runway at KDAY — last 30 days
Which runway end had the most headwind each hour, from ATIS Alerts' collected wind history — an estimate, not ATC use.
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 24L/24R
- 35%
- 06L/06R
- 23%
- 18
- 23%
- 36
- 19%
Historical wind and crosswind on runway 18/36
20-year hourly climatology from the ASOS archive, computed per runway end.
From 175,173 hourly observations at KDAY (2005–2025), 161,511 with a steady wind direction (7.8% calm, variable or direction-less). One observation per clock hour; TRUE headings against TRUE wind.
Crosswind on runway 18/36 (either end)
| Crosswind (kt) | Share of wind hours |
|---|---|
| 0–5 | 55.1% |
| 5–10 | 31.2% |
| 10–15 | 10.1% |
| 15–20 | 2.7% |
| 20–25 | 0.7% |
| 25+ | 0.2% |
Strongest-crosswind month on average: Jan; calmest: Aug. Percentiles are streaming approximations (t-digest), accurate to about 0.1 kt.
Runway 18
Runway 36
“Wind-favored” counts the hours this end had the most headwind of every open runway at KDAY — wind arithmetic, not an ATC assignment (parallel runways with the same heading share the credit equally). Recorded D-ATIS use, where available, is the section above.
By wind direction
| Wind from | Share of wind hours | 18 favored | 36 favored | Mean crosswind | Crosswind > 15 kt |
|---|---|---|---|---|---|
| N 338–023° | 11% | 0% | 100% | 1.8 kt | 0% |
| NE 023–068° | 7% | 0% | 0% | 5.1 kt | 0.3% |
| E 068–113° | 8% | 0% | 0% | 6.8 kt | 1.1% |
| SE 113–158° | 9% | 100% | 0% | 4.9 kt | 0.3% |
| S 158–203° | 18% | 100% | 0% | 2.1 kt | 0% |
| SW 203–248° | 18% | 0% | 0% | 6.6 kt | 2.6% |
| W 248–293° | 18% | 0% | 0% | 10.3 kt | 16% |
| NW 293–338° | 11% | 0% | 100% | 5.8 kt | 1.5% |
By time of day (airport-local)
Seasonal runway conditions
| Month | Mean crosswind (kt) |
|---|---|
| Jan | 6.8 kt |
| Feb | 6.6 kt |
| Mar | 6.2 kt |
| Apr | 6.4 kt |
| May | 5.2 kt |
| Jun | 5.0 kt |
| Jul | 4.6 kt |
| Aug | 4.4 kt |
| Sep | 4.4 kt |
| Oct | 5.1 kt |
| Nov | 5.7 kt |
| Dec | 6.2 kt |
| Month | Prevailing | Mean wind | Gusty | Mean xw | xw > 10 | xw > 15 | xw > 20 | 18 tail > 5 | 36 tail > 5 | IFR | TS | Fog |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | W | 9.8 kt | 13.1% | 6.8 kt | 23.3% | 6.7% | 1.6% | 13.9% | 37% | 16.1% | 0.06% | 18.3% |
| Feb | W | 9.6 kt | 13.1% | 6.6 kt | 19.7% | 6.6% | 1.8% | 21% | 32.2% | 13% | 0.19% | 15.2% |
| Mar | S | 9.6 kt | 16% | 6.2 kt | 17.7% | 4.9% | 1.3% | 25.7% | 31.4% | 9.2% | 0.48% | 11.4% |
| Apr | S | 9.5 kt | 17.9% | 6.4 kt | 19.1% | 5.6% | 1.4% | 20.3% | 34.1% | 6.3% | 0.91% | 7.3% |
| May | S | 7.9 kt | 11.9% | 5.2 kt | 10.8% | 2.3% | 0.4% | 17.7% | 32.3% | 5.6% | 1.18% | 7.2% |
| Jun | SW | 7.3 kt | 9.1% | 5 kt | 9.1% | 1.5% | 0.2% | 14.6% | 31.4% | 3.8% | 1.73% | 6.3% |
| Jul | SW | 6.3 kt | 4.1% | 4.6 kt | 6% | 0.6% | 0.1% | 13.8% | 23.2% | 3.5% | 1.63% | 5.9% |
| Aug | SW | 6 kt | 3.9% | 4.4 kt | 5.3% | 0.5% | 0% | 15.7% | 20.6% | 3% | 1.19% | 5.7% |
| Sep | S | 6.3 kt | 6.2% | 4.4 kt | 5.8% | 1.1% | 0.2% | 16.4% | 23% | 5.6% | 0.67% | 7.6% |
| Oct | S | 8 kt | 10.5% | 5.1 kt | 11.6% | 2.8% | 0.6% | 16.6% | 34.3% | 6.9% | 0.23% | 7.7% |
| Nov | S | 8.6 kt | 12% | 5.7 kt | 14.8% | 3.8% | 0.8% | 14.4% | 36.7% | 8.3% | 0.08% | 10.8% |
| Dec | W | 9.1 kt | 12% | 6.2 kt | 18.6% | 5.5% | 1.4% | 12.4% | 38% | 15.4% | 0.04% | 17.6% |
IFR, thunderstorm (TS) and fog columns are airport-wide shares of hours; the crosswind and tailwind columns are specific to this runway. Prevailing = most common 45° wind sector among wind hours.
Runway 18/36 closure history
Runway NOTAM history begins when the NOTAM feed goes live (next phase).
No closure history is recorded for this runway yet. KDAY has no D-ATIS, and runway NOTAM recording starts in the next phase; history accrues from that date forward.
Instrument approaches to runway 18/36
From the FAA d-TPP, linked to the official plates.
Runway 18
- ILSILS OR LOC RWY 18 ↗precision
- RNAV (GPS)RNAV (GPS) RWY 18 ↗
Runway 36
- RNAV (GPS)RNAV (GPS) RWY 36 ↗
2 departure procedures · 1 STAR · FAA hot spots page ↗ · FAA d-TPP cycle 2610. Plates open on aeronav.faa.gov (public domain); ATIS Alerts does not reproduce charts or minimums.
Methodology and sources
Short version below; the full write-up is at Runway Intelligence methodology, and every launched airport is listed on the Runway Intelligence hub.
- Active runwayscome first from the tower's TFDM (Terminal Flight Data Manager) airport configuration, received as structured data through the FAA SWIM Cloud Distribution Service at towers that have it (KDAY does); otherwise from the airport's D-ATIS text (community relay of the FAA broadcast) with an open, tested parser, and the broadcast text is always shown. Every change is recorded, so “recorded use” is what the facility stated, never an inference. ATIS Alerts is not an FAA product and this is not FAA data; SWIM content is for non-operational use.
- Wind components use the current METAR (aviationweather.gov) against TRUE runway headings from the OurAirports/FAA runway record.
- Runway visual range, tower demand and traffic-management restrictions come from FAA SWIM: STDDS Airport Data (RVR and light settings, about 130 airports) and TFDM (15-minute runway demand, APREQ/MIT restrictions). Each block is stamped with its own time; none of it is an FAA product or a clearance.
- Predicted runway scores each open end from the TAF wind (headwind, crosswind penalty, tailwind avoidance, longest-runway tie-break); confidence falls with forecast distance, gusts and TAF age. It does not model noise abatement or flow programs.
- Climatology: Iowa Environmental Mesonet ASOS archive, one observation per hour, 45° wind sectors, percentiles via t-digest; runway geometry is today's record applied to all years. Methodology v1.
- Approaches: FAA d-TPP metafile, current charting cycle; plates link to aeronav.faa.gov. No minimums are reproduced.
- Data freshness: METAR and D-ATIS refresh every minute on this page; the D-ATIS recorder ran 4 min ago; the tower TFDM feed last delivered 9 min ago; climatology through 2025-12-31.
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Other runways at KDAY
Tools for this runway
⚠️ ATIS Alerts provides informational runway analysis based on available weather, D-ATIS, FAA data and historical observations. Active runways shown here are read from D-ATIS text and may lag or be misread; predicted runways are an ATIS Alerts estimate, not an ATC assignment. Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
Runway page score 63/100 · indexed (rollout wave gate).