WxDecoder

US-1660 Weather AJC Airport

Greeley, ColoradoElevation 4,629 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KGXY · 4 NM N · 7 min old
Ceiling 400 ft, visibility 5 SM, mist.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KGXY
WIND
060@11
steady
VISIBILITY
5 SM
8 km
CEILING
400 ft
lowest BKN/OVC
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind from 50° at 10 kt, visibility 4 SM, temperature 7C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight patchy fog, low near 43F, 61% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Tonight: Patchy Fog. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Patchy Fog 43 NE 10 kt 17 kt 61% Thunderstorms in the forecast
Monday Chance Rain Showers then Mostly Sunny 59/34 NE 7 kt – 49%
Tuesday Patchy Fog then Mostly Sunny 67/34 NNE 5 kt – 0%
Wednesday Mostly Sunny 67/35 S 5 kt – 0%
Thursday Mostly Sunny 66/36 SSE 5 kt – 0%
Friday Mostly Sunny 68/39 NE 5 kt – 14%
Saturday Mostly Sunny 63/37 NE 4 kt – 12%
Sunday Partly Sunny then Chance Rain Showers 63 ESE 8 kt – 40%

Source: National Weather Service (office BOU). Forecast issued 0403Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
Crosswind calculator
No runway layout is available for US-1660. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway

09/27
Dimensions
2,554 x 20 ft
Surface
Dirt (fair)
RWY 09
RWY 27

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
4,629 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0004Z 6:04 PM
Sunrise
1321Z 7:21 AM
Loggable night
0032Z (6:32 PM local) → 1253Z (6:53 AM local)
end of evening to start of morning civil twilight
Position lights required
0004Z (6:04 PM local) → 1321Z (7:21 AM local)
sunset to sunrise (91.209)
Night passenger currency
0104Z (7:04 PM local) → 1221Z (6:21 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

AJC Airport is in Greeley, Colorado. Field elevation 4,629 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerAJC HOLDING, LLC
Manager phone970-301-1915
CHARTS & AIRSPACE
ICAO / IATAUS-1660
SectionalCHEYENNE
Center (ARTCC)DENVER
Flight service (AFSS)DENVER
RegionColorado
CountryUnited States
Coordinates40.3705, -104.6349
Distance from city5 NM SE
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

US-1660 traffic patterns

2026-07-17 to 2026-08-02, 4 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1.3
AVG OPS/DAY
2.5
Activity trend over 4 days: flat, from 2 to 2 operations per dayOperations trend (4 days)

Busiest day: Fri · Busiest month: Jul

FLEET MIX
Turboprop 43%Piston single 29%Helicopter 29%

Mostly turboprop aircraft.

TOP AIRCRAFT TYPES
›SS2T (Turboprop) · ~2 landings/mo
›C120 (Piston single) · ~1 landings/mo
›UNKN (Helicopter) · ~1 landings/mo
Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

US-1660 has no on-field report. Nearest reporting station: KGXY (4 NM N, LIFR).

KGXY Greeley–Weld County Airport
4 NM N
LIFR
KFNL Northern Colorado Regional Airport
18 NM W
LIFR
KDEN Denver International Airport
31 NM S
LIFR
KBDU Boulder Municipal Airport
34 NM SW
MVFR
KBJC Rocky Mountain Metropolitan Airport
35 NM SW
MVFR
KCFO Colorado Air and Space Port
35 NM S
LIFR
AIRPORT REMARKS

Operational remarks

›OWNER DESIRES ARPT NOT TO BE CHARTED.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗US-1660 on OurAirports
FREQUENTLY ASKED
Does US-1660 have a METAR?
No on-field METAR is issued for US-1660. This page uses the nearest reporting station as a reference.
Does US-1660 have a TAF?
No TAF is issued directly for US-1660. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at US-1660?
US-1660 sits at 4,629 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for US-1660?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.