WxDecoder

CO56 Weather Jjs Airport

Keenesburg, ColoradoElevation 5,075 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KCFO · 11 NM S · 15 min old
Ceiling 800 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KCFO
WIND
330@12
steady
VISIBILITY
10 SM
16.1 km
CEILING
800 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 310° at 8 kt, visibility 10 SM, temperature 7C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight chance rain showers, low near 43F, 47% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Tonight: Chance Rain Showers. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Chance Rain Showers 43 NNW 9 kt 15 kt 47% Thunderstorms in the forecast
Monday Chance Rain Showers then Mostly Sunny 59/36 NNE 8 kt 14 kt 26%
Tuesday Patchy Fog then Sunny 67/37 NNW 7 kt 14 kt 0%
Wednesday Sunny 68/38 NNW 7 kt – 0%
Thursday Mostly Sunny 67/40 SSE 9 kt – 0%
Friday Partly Sunny 68/41 NW 9 kt – 14%
Saturday Slight Chance Rain Showers then Mostly Sunny 62/40 N 5 kt – 15%
Sunday Partly Sunny then Chance Rain Showers 62 SSE 13 kt – 44%

Source: National Weather Service (office BOU). Forecast issued 0249Z.

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 CO56. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 4,280 ft

17/35
Dimensions
4,280 x 40 ft
Surface
Dirt
RWY 17
RWY 35

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
5,075 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
1319Z 7:19 AM
Loggable night
0032Z (6:32 PM local) → 1252Z (6:52 AM local)
end of evening to start of morning civil twilight
Position lights required
0004Z (6:04 PM local) → 1319Z (7:19 AM local)
sunset to sunrise (91.209)
Night passenger currency
0104Z (7:04 PM local) → 1219Z (6:19 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

Jjs Airport is in Keenesburg, Colorado. Field elevation 5,075 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerJOHN J. SAUTER
Manager phone(970) 381-5522
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATACO56
SectionalDENVER
Center (ARTCC)DENVER
Flight service (AFSS)DENVER
RegionColorado
CountryUnited States
Coordinates39.9641, -104.4630
Distance from city10 NM SE
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

CO56 traffic patterns

2026-07-30 to 2026-08-03, 2 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1
AVG OPS/DAY
2
Activity trend over 2 days: flat, from 2 to 2 operations per dayOperations trend (2 days)

Busiest day: Thu · Busiest month: Aug

FLEET MIX
Turboprop 50%Piston single 50%

Mostly turboprop aircraft.

TOP AIRCRAFT TYPES
›AT3T (Turboprop) · ~1 landings/mo
›PA18 (Piston single) · ~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

CO56 has no on-field report. Nearest reporting station: KCFO (11 NM S, IFR).

KCFO Colorado Air and Space Port
11 NM S
IFR
KDEN Denver International Airport
12 NM SW
IFR
KBKF Buckley Space Force Base
21 NM SW
MVFR
KGXY Greeley–Weld County Airport
29 NM N
LIFR
KAPA Centennial Airport
30 NM SW
MVFR
KBJC Rocky Mountain Metropolitan Airport
30 NM W
MVFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC DENVER APCH AT 303-342-1916.
›PRVDD ACFT USING ARPT USE A MODE C TRANSPONDER.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗CO56 on OurAirports
FREQUENTLY ASKED
Does CO56 have a METAR?
No on-field METAR is issued for CO56. This page uses the nearest reporting station as a reference.
Does CO56 have a TAF?
No TAF is issued directly for CO56. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at CO56?
CO56 sits at 5,075 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for CO56?
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.