James M Cox Dayton International Airport

KDAY / DAY

Dayton, US

Last Updated
May 15, 13:56Z

Current Weather

Display Units
Aging 1 hour ago
13:56Z

☀️ Day
VFR
Flight Rules
15°C
Temperature
Dewpoint: 6°C
8 kt
220°
10 SM
Visibility
21,000 ft
Ceiling
Above Ground Level
1020 hPa
QNH
Altimeter Setting

Raw METAR

METAR KDAY 151356Z 22008KT 10SM FEW100 SCT150 BKN210 15/06 A3011 RMK AO2 SLP195 T01500056

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 1,009 ft
FEW 10,000 ft AGL
SCT 15,000 ft AGL
BKN 21,000 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
10,000 ft
AGL (Above Ground)
11,009 ft AMSL
SCT
Scattered (3/8-4/8 sky coverage)
15,000 ft
AGL (Above Ground)
16,009 ft AMSL
☁️
BKN
Broken (5/8-7/8 sky coverage)
21,000 ft
AGL (Above Ground)
22,009 ft AMSL

Weather Briefing

VFR

James M Cox Dayton International Airport is currently reporting visual flight rules (VFR) conditions with broken clouds at 21,000 feet and 10 SM visibility. Note: This observation is 1 hours old and conditions may have changed.

Wind Analysis

Winds are from the southwest (220°) at 8 knots. Runway 24 is favored with a 8-knot headwind and 3-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 21000 feet AGL (broken), well above standard VFR minimums.

Temperature & Moisture

Temperature is 15°C (59°F) with a dewpoint of 6°C, indicating moderate moisture 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 10:00Z and 12:00Z.

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
1020 hPa
Sea Level Pressure
For altitude above MSL
QFE
986 hPa
Field Pressure
Height above aerodrome (1,009 ft)
Pressure Alt
807 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,049 ft
ISA Deviation: +2.0°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KDAY 151120Z 1512/1612 VRB03KT P6SM BKN250 FM151400 18009KT P6SM SCT120 BKN150 FM151800 19009KT P6SM BKN090 FM160900 18009KT P6SM BKN050 PROB30 1610/1612 4SM -SHRA OVC025
Upcoming Changes (Next 12 Hours)
14:56Z BASE
+0h
VFR VRB 3 kt
Visibility: >6SM
Ceiling: 25,000 ft
18:00Z FM151800
+4h
VFR 190° 9 kt
Visibility: >6SM
Ceiling: 9,000 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
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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
DAY
06L
24R ✈️
06R
24L ✈️
18
36

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 06L/24R
Active: 24R
10,900 ft 150 ft PEM 55°
7.5 kt 2.7 kt
20° angle
✈️ 06R/24L
Active: 24L
7,001 ft 150 ft PEM 55°
7.5 kt 2.7 kt
20° angle
18/36 8,502 ft 150 ft PEM 178°
5.9 kt 5.4 kt
42° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KDAY

6,882 observations | Sep 2025 - May 2026

Flight Rules Distribution

VFR
67.7%
MVFR
21.3%
IFR
7%
LIFR
3.9%

James M Cox Dayton International Airport typically experiences VFR conditions 67.7% of the time, though instrument-rated pilots will find IFR weather present approximately 10.9% of observations. Prevailing winds are from the W averaging 9.8 knots, with gusts recorded up to 41 knots. Temperature extremes range from -21°C to 31°C, reflecting significant seasonal variation. The best months for VFR flying are May, September, October.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 9.8 kt
Maximum Recorded: 41 kt
Calm Winds: 5.1%
Direction Distribution:
E
7.1%
N
9.2%
S
15.8%
W
20.7%
NE
6.7%
NW
10.5%
SE
6.7%
SW
18.3%

Temperature Range

Average: 6.5°C
Range: -21°C to 31°C
-21°C 31°C

Visibility

Average: 14.4 SM
Below 3 SM: 3.3%
Fog Frequency: 2.2%

Best Months for VFR

May September October

Runway Wind Analysis

Runway 18/36
Favorable wind: 100%
Avg crosswind: 6.6 kt
Runway 06L/24R
Favorable wind: 100%
Avg crosswind: 5.6 kt
Runway 06R/24L
Favorable wind: 100%
Avg crosswind: 5.6 kt

Statistics computed from 6,882 METAR observations (Sep 2025 - May 2026). Data sourced from official aviation weather services. Updated daily.

James M Cox Dayton International Airport - Airport Information

Airport Details

ICAO Code: KDAY
IATA Code: DAY
Type: medium airport
Status: active
Elevation: 1,009 ft MSL

Location

City: Dayton
Country: US
Latitude: 39.902401°
Longitude: -84.219398°
Time Zone: Etc/GMT+6

Runway Information

Runway 06L/24R
Length: 10,900 ft
Width: 150 ft
Surface: PEM
ILS: No
Runway 06R/24L
Length: 7,001 ft
Width: 150 ft
Surface: PEM
ILS: No
Runway 18/36
Length: 8,502 ft
Width: 150 ft
Surface: PEM
ILS: No

About James M Cox Dayton International Airport

Overview

James M Cox Dayton International Airport serves as a medium-sized airport located in Dayton, Ohio, at an elevation of 1,009 feet MSL. Situated at coordinates 39.902401, -84.219398, the airport provides critical aviation infrastructure for the Dayton metropolitan region, featuring three precision-equipped (PEM) runways capable of handling diverse aircraft operations.

Flying Conditions

Pilots can expect predominantly favorable flying conditions, with 64.9% of observations reporting VFR conditions. The airport experiences a wide temperature range from -19°C to 31°C, with an average of 6.5°C. Western winds prevail at an average of 9.4 knots, with maximum gusts reaching 36 knots, and calm conditions occurring 7.2% of the time.

Notable Features

The airport's three runways offer excellent wind coverage, with each runway demonstrating 100% favorable wind conditions. Runway 06L/24R is the longest at 10,900 feet, providing substantial operational flexibility. Average crosswind components remain relatively modest, ranging from 5.3 to 6.6 knots across the runways.

Approach Considerations

September through November represent the most consistent VFR months for operations. Visibility averages an excellent 18.8 statute miles, with only 3.7% of observations reporting visibility below 3 miles and minimal fog occurrence at 1.6%. Pilots should anticipate generally stable approach conditions with multiple runway options to accommodate wind variations.

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.