Runways at KGYH
According to OurAirports data (compiled from AIP and FAA sources), Donaldson Field Airport (Greenville) has one runway: 05/23 - 2,438 m long (8,000 ft), 46 m wide, asphalt surface.
Donaldson Field Airport (Greenville) (KGYH / GDC)
United States · elevation 955 ft AMSL
· 34.7583, -82.3764
About Donaldson Field Airport (Greenville)
Donaldson Field Airport (Greenville) is an airport with the ICAO code KGYH and the IATA code GDC. Country: United States. Nearest settlement listed in the database: Greenville. OurAirports classifies it as a small airport. Its ICAO code starts with the KG prefix, which marks airports in United States. The four-letter code KGYH is used in flight operations and weather reports, while the three-letter IATA code GDC is used for ticketing and baggage handling. The airport reference point sits at 34°45'30"N, 82°22'35"W, at an elevation of 955 ft (291 m) above sea level. The applicable time zone is America/New_York.
Satellite view of KGYH
Aerial imagery showing the runway and apron layout - the zoom is matched to the longest runway.
Runways of KGYH
| Threshold | Course | Length | Width | Surface |
|---|---|---|---|---|
| 05 | 50° | 2,438 m (8,000 ft) | 46 m (150 ft) | asphalt |
| 23 | 230° |
The course is derived from the runway designator (number × 10), not from a survey - the actual magnetic bearing can differ by a few degrees.
Declared distances (TORA, TODA, ASDA, LDA) are published in the national AIP - they are not part of this table.
Climate at Donaldson Field Airport (Greenville) - statistics from METAR reports
What the METAR reports from KGYH for 2023-2025 show - counted hour by hour.
We computed these statistics from 23,565 METAR reports issued by KGYH in 2023-2025. VFR conditions prevailed 83% of the time, MVFR 8% and IFR or LIFR 9%. Best month for VFR flying: October (91% of hours VFR). Most IFR and LIFR hours: December (19%).
Through the day, IFR or LIFR conditions are most frequent around 13:00 UTC (17% of reports at that hour) and least frequent around 21:00 UTC (5%).
Fog (FG) was reported on 20 days a year on average, most often in December. Thunderstorms (TS) occurred on 20 days a year on average, and snowfall on 1.7.
The wind most often blows from WSW (248°) - 12% of reports. Calm (0 kt) made up 11% of reports, and gusts of 25 kt or more appeared in 1%. Warmest month: July (average high 32.4 °C); coldest: January (average low 1.5 °C).
Year
Selected period in numbers: 2023-2025
- VFR hours
- 83%
- IFR/LIFR hours
- 9%
- Avg high
- 22.7 °C
- Avg low
- 12.3 °C
- Fog days
- 20
- Thunderstorm days
- 20
- Snow days
- 1.7
- Prevailing wind
- WSW · 12%
- Gusts ≥ 25 kt
- 1%
Day counts are for the selected period (for all years - the yearly average).
- VFR 83%
- MVFR 8%
- IFR 6%
- LIFR 4%
The top of each bar is the average daily high, the bottom the average daily low (usually around dawn), in °C.
Wind rose
- 1-10 kt
- 11-20 kt
- over 20 kt
- calm: 11%
Most often: WSW - 12% of reports. Each petal shows the direction the wind blows from (as in METAR) - the longer it is, the more often. Colour shows wind speed.
Month by month
| Month | Avg high °C | Avg low °C | VFR | IFR/LIFR | Fog days | Thunderstorm days | Snow days |
|---|---|---|---|---|---|---|---|
| January | 11.5 | 1.5 | 75% | 17% | 4 | 0.7 | 1.3 |
| February | 16.9 | 5.8 | 80% | 12% | 1.7 | 0.7 | 0.3 |
| March | 20.0 | 7.8 | 83% | 9% | 0.3 | 1 | 0 |
| April | 23.3 | 12.1 | 82% | 8% | 1 | 2 | 0 |
| May | 25.3 | 15.9 | 79% | 11% | 1.3 | 3.7 | 0 |
| June | 29.7 | 19.8 | 85% | 7% | 1.3 | 2.7 | 0 |
| July | 32.4 | 22.4 | 88% | 5% | 1 | 6.3 | 0 |
| August | 29.9 | 20.9 | 81% | 9% | 1.3 | 2.7 | 0 |
| September | 27.8 | 18.2 | 86% | 6% | 0 | 0 | 0 |
| October | 23.4 | 12.1 | 91% | 4% | 0.3 | 0.3 | 0 |
| November | 18.5 | 7.8 | 85% | 8% | 2.7 | 0 | 0 |
| December | 13.2 | 3.1 | 74% | 19% | 5.3 | 0.3 | 0 |
Temperatures are averages of daily highs and lows. Day counts are the average per month over the period.
Runway headings and wind
The thresholds are oriented as follows: 05/23 on 50° and 230° magnetic. A threshold designator is its magnetic heading divided by ten (ICAO Annex 14), so the runway axis can be read straight off the numbers.
For the 05/23 axis, wind from the south-east (around 140°) or from the north-west (around 320°) blows perpendicular to the runway and produces the largest crosswind component. Wind from around 50° or 230° acts along the runway, as a headwind or a tailwind. The decoder on this page computes those components automatically from the current METAR.
METAR and TAF for KGYH
Weather reports for Donaldson Field Airport (Greenville) are published under the ICAO code KGYH. A METAR is an observation of current conditions, usually issued every 30 or 60 minutes; a TAF is a forecast for the airport area, typically covering 9 to 30 hours.
The decoder breaks the KGYH report down into its parts: wind direction and speed including gusts and variability, visibility (including CAVOK and directional minimum visibility), weather phenomena by WMO code, cloud layers with their bases, temperature and dew point, QNH pressure, and the resulting flight category - VFR, MVFR, IFR or LIFR - using FAA thresholds.
Not every airport issues its own reports; many smaller airfields have no weather station. If no current data is available for KGYH, check the nearby airports listed below.
Reports always use UTC (the Z suffix). The America/New_York zone is GMT-05:00 in winter and GMT-04:00 in summer - that is the shift to apply to the time in the report to get local time at the airport.
The closest airports in the database, measured in a straight line from the reference point, are Greenville Downtown Airport (KGMU, 10 km), Greenville-Spartanburg International Airport (Greenville/Greer/Spartanburg) (KGSP, 21 km), Pickens County Airport (KLQK, 30 km). When no report is available for KGYH, they usually give the best approximation of conditions in the area.
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Nearby airports
Looking for a report from a specific day?
The METAR archive for KGYH goes back to 31/12/1948. Pick a date and see every observation from that day.
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