James M Cox Dayton International Airport

KDAY / DAY

Dayton, US

Last Updated
Mar 4, 20:28Z

Current Weather

Display Units
Recent 46 min ago
20:28Z

🌙 Night
IFR
Flight Rules
13°C
Temperature
Dewpoint: 11°C
4 kt
70°
--
Visibility
800 ft
Ceiling
Above Ground Level
1020 hPa
QNH
Altimeter Setting

Raw METAR

SPECI KDAY 042028Z 07004KT 2 1/2SM BR BKN008 OVC015 13/11 A3013 RMK AO2 SFC VIS 4 T01280111

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 1,009 ft
BKN 800 ft AGL
OVC 1,500 ft AGL
☁️
BKN
Broken (5/8-7/8 sky coverage)
800 ft
AGL (Above Ground)
1,809 ft AMSL
☁️
OVC
Overcast (8/8 sky coverage)
1,500 ft
AGL (Above Ground)
2,509 ft AMSL
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: 809 ft
ISA Deviation: +0.0°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KDAY 041959Z 0420/0518 11006KT 5SM BR OVC006 FM050100 13006KT 3SM -SHRA BR OVC004 PROB30 0502/0504 2SM TSRA OVC004CB FM050500 20006KT 2SM -SHRA BR OVC003
Upcoming Changes (Next 12 Hours)
21:13Z BASE
+0h
IFR 110° 6 kt
Visibility: 5SM
Ceiling: 600 ft
Mist
01:00Z FM050100
+4h
LIFR 130° 6 kt
Visibility: 3SM
Ceiling: 400 ft
Light Showers Rain, Mist
02:00Z PROB30
+5h
LIFR
Visibility: 2SM
Ceiling: 400 ft
Thunderstorm Rain
05:00Z FM050500
+8h
LIFR 200° 6 kt
Visibility: 2SM
Ceiling: 300 ft
Light Showers Rain, Mist

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
DAY
06L ✈️
24R
06R ✈️
24L
18
36

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 06L/24R
Active: 06L
10,900 ft 150 ft PEM 55°
3.9 kt 0.7 kt
10° angle
✈️ 06R/24L
Active: 06R
7,001 ft 150 ft PEM 55°
3.9 kt 0.7 kt
10° angle
18/36 8,502 ft 150 ft PEM 178°
1.2 kt 3.8 kt
108° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KDAY

4,857 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
64.7%
MVFR
24%
IFR
7.5%
LIFR
3.9%

James M Cox Dayton International Airport typically experiences VFR conditions 64.7% of the time, though instrument-rated pilots will find IFR weather present approximately 11.4% of observations. Prevailing winds are from the W averaging 9.2 knots, with gusts recorded up to 36 knots. Temperature extremes range from -21°C to 31°C, reflecting significant seasonal variation. The best months for VFR flying are September, October, November.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 9.2 kt
Maximum Recorded: 36 kt
Calm Winds: 6.7%
Direction Distribution:
N
9.1%
NE
7%
E
7.8%
SE
7.1%
S
15%
SW
15.4%
W
22.1%
NW
9.9%

Temperature Range

Average: 4.2°C
Range: -21°C to 31°C
-21°C 31°C

Visibility

Average: 16.4 SM
Below 3 SM: 4%
Fog Frequency: 2.7%

Best Months for VFR

September October November

Runway Wind Analysis

Runway 06L/24R
Favorable wind: 100%
Avg crosswind: 5.3 kt
Runway 06R/24L
Favorable wind: 100%
Avg crosswind: 5.3 kt
Runway 18/36
Favorable wind: 100%
Avg crosswind: 6.3 kt

Statistics computed from 4,857 METAR observations (Sep 2025 - Mar 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.