James M Cox Dayton International Airport

KDAY / DAY

Dayton, US

Last Updated
Mar 4, 16:30Z

Current Weather

Display Units
Fresh 19 min ago
16:30Z

☀️ Day
LIFR
Flight Rules
9°C
Temperature
Dewpoint: 8°C
6 kt
110°
2 SM
Visibility
400 ft
Ceiling
Above Ground Level
1022 hPa
QNH
Altimeter Setting

Raw METAR

SPECI KDAY 041630Z 11006KT 2SM BR OVC004 09/08 A3019 RMK AO2 SFC VIS 5 T00890078

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 1,009 ft
OVC 400 ft AGL
☁️
OVC
Overcast (8/8 sky coverage)
400 ft
AGL (Above Ground)
1,409 ft AMSL
QNH
1022 hPa
Sea Level Pressure
For altitude above MSL
QFE
988 hPa
Field Pressure
Height above aerodrome (1,009 ft)
Pressure Alt
747 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 269 ft
ISA Deviation: -4.0°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KDAY 041127Z 0412/0512 08005KT 1SM BR OVC003 FM041900 10006KT 4SM BR BKN006 FM042200 11006KT 3SM -SHRA BR BKN006 PROB30 0423/0503 2SM TSRA OVC005CB FM050700 17005KT 1SM BR OVC004
Upcoming Changes (Next 12 Hours)
16:48Z BASE
+0h
LIFR 80° 5 kt
Visibility: 1SM
Ceiling: 300 ft
Mist
19:00Z FM041900
+3h
IFR 100° 6 kt
Visibility: 4SM
Ceiling: 600 ft
Mist
22:00Z FM042200
+6h
IFR 110° 6 kt
Visibility: 3SM
Ceiling: 600 ft
Light Showers Rain, Mist
23:00Z PROB30
+7h
LIFR
Visibility: 2SM
Ceiling: 500 ft
Thunderstorm Rain

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
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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: 06L
10,900 ft 150 ft PEM 55°
3.9 kt 4.6 kt
50° angle
✈️ 06R/24L
Active: 06R
7,001 ft 150 ft PEM 55°
3.9 kt 4.6 kt
50° angle
18/36 8,502 ft 150 ft PEM 178°
2.2 kt 5.6 kt
68° 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.