KM90
William Robert Johnston Municipal Airport
Mendota, CaliforniaElevation 162 ftSmall airport
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Runway detail & declared distances
15/33
RWY 15
Traffic patternLeft
RWY 33
Displaced threshold777 ft
Traffic patternRight
Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.
AIRPORT INFORMATION
Facility & services
William Robert Johnston Municipal Airport is in Mendota, California. Field elevation 162 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.
OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerCRISTIAN GONZALES
Manager phone(559) 655-4298
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAKM90
SectionalSAN FRANCISCO
Center (ARTCC)OAKLAND
Flight service (AFSS)RANCHO MURIETA
RegionCalifornia
CountryUnited States
Coordinates36.7586, -120.3710
Distance from city0 NM E
SERVICES & LIGHTING
Control towerNon-towered
CTAF122.900
FREQUENCIES
Communications
122.9
CTAF
CTAF
Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.
AIRPORT REMARKS
Operational remarks
›APCH RATIO TO DSPLCD THR 50:1.
›FOR CD CTC NORCAL APCH AT 916-361-0516.
›PARL TWY ROUGH/UNEVEN SFC; EXTSV ASPH RPR AND PATCHING.
›ARPT CLSD UNTIL FURTHER NOTICE.
›(ARPT STATUS) ARPT CLSD INDEFLY.
›CITY MANAGER X 109.
›RWY 15/33 IS POTHOLED WITH AREAS OF COLLAPSED PAVEMENT.
›MARKINGS FADED.
›MARKINGS FADED.
FREQUENTLY ASKED
Does KM90 have a METAR?
No on-field METAR is issued for KM90. This page uses the nearest reporting station as a reference.
Does KM90 have a TAF?
No TAF is issued directly for KM90. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at KM90?
KM90 sits at 162 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KM90?
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.