James M Cox Dayton International Airport

KDAY / DAY

Dayton, US

Last Updated
Jun 10, 10:56Z

Current Weather

Display Units
Fresh 23 min ago
10:56Z

☀️ Day
IFR
Flight Rules
22°C
Temperature
Dewpoint: 21°C
6 kt
240°
10 SM
Visibility
500 ft
Ceiling
Above Ground Level
1014 hPa
QNH
Altimeter Setting

Raw METAR

METAR KDAY 101056Z 24006KT 10SM OVC005 22/21 A2993 RMK AO2 SLP128 T02170211

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 1,009 ft
OVC 500 ft AGL
☁️
OVC
Overcast (8/8 sky coverage)
500 ft
AGL (Above Ground)
1,509 ft AMSL

Weather Briefing

IFR

James M Cox Dayton International Airport is currently reporting instrument flight rules (IFR) conditions with overcast skies at 500 feet and 10 SM visibility.

Wind Analysis

Winds are from the west-southwest (240°) at 6 knots. Runway 24 is favored with a 6-knot headwind and 0-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. The ceiling is 500 feet AGL (overcast). Only precision approaches may be usable depending on minimums.

Temperature & Moisture

Temperature is 22°C (72°F) with a dewpoint of 21°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 19 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan.

Pilot Recommendations

An instrument rating and IFR flight plan are required. Verify that destination and alternate approach minimums are above current and forecast conditions. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours.

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

QNH
1014 hPa
Sea Level Pressure
For altitude above MSL
QFE
980 hPa
Field Pressure
Height above aerodrome (1,009 ft)
Pressure Alt
987 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 2,069 ft
ISA Deviation: +9.0°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KDAY 101046Z 1011/1106 23010KT P6SM BKN006 OVC020 FM101400 24012KT P6SM BKN015 FM101600 23014G22KT P6SM SCT030 FM110000 22010KT P6SM FEW040
Upcoming Changes (Next 12 Hours)
11:18Z BASE
+0h
IFR 230° 10 kt
Visibility: >6SM
Ceiling: 600 ft
14:00Z FM101400
+3h
MVFR 240° 12 kt
Visibility: >6SM
Ceiling: 1,500 ft
16:00Z FM101600
+5h
VFR 230° 14 kt
Visibility: >6SM

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°
6.0 kt 0.0 kt
0° angle
✈️ 06R/24L
Active: 24L
7,001 ft 150 ft PEM 55°
6.0 kt 0.0 kt
0° angle
18/36 8,502 ft 150 ft PEM 178°
2.8 kt 5.3 kt
62° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KDAY

7,611 observations | Sep 2025 - Jun 2026

Flight Rules Distribution

VFR
68.3%
MVFR
20.4%
IFR
7.5%
LIFR
3.8%

James M Cox Dayton International Airport typically experiences VFR conditions 68.3% of the time, though instrument-rated pilots will find IFR weather present approximately 11.3% of observations. Prevailing winds are from the W averaging 9.6 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 June, September, October.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 9.6 kt
Maximum Recorded: 41 kt
Calm Winds: 5.6%
Direction Distribution:
E
8.2%
N
8.9%
S
15.4%
W
19.6%
NE
7.9%
NW
9.7%
SE
6.3%
SW
18.4%

Temperature Range

Average: 7.7°C
Range: -21°C to 31°C
-21°C 31°C

Visibility

Average: 13.9 SM
Below 3 SM: 3.5%
Fog Frequency: 2.2%

Best Months for VFR

June September October

Runway Wind Analysis

Runway 18/36
Favorable wind: 100%
Avg crosswind: 6.5 kt
Runway 06L/24R
Favorable wind: 100%
Avg crosswind: 5.4 kt
Runway 06R/24L
Favorable wind: 100%
Avg crosswind: 5.4 kt

Statistics computed from 7,611 METAR observations (Sep 2025 - Jun 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.