Airports / KM90 / William Robert Johnston Municipal AirportModerate ground coverage
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William Robert Johnston Municipal Airport satellite view
📍 Mendota⬆ 162 ft1 runways
KM90 ·

William Robert Johnston Municipal Airport

36.75860°N
-120.37100°W
ARR / DAY
0
100.0%
DEP / DAY
0
0.0%

William Robert Johnston Municipal Airport (KM90) is a small general aviation airport located in Mendota, CA, 33 mi west of Fresno. It features 1 runway measuring 3,499 feet.

Current weather

From KFAT, 36 mi away (KM90 does not publish METAR)

57m ago
Temp
75°F
Wind
8 kts
140°
Visib
10+ km
Ceil
KFAT 071653Z 14008KT 10SM FEW200 24/09 A2999 RMK AO2 SLP151 T02390094 $

Runways

1 installed

3,499 FT MAX
15/33
3,499 ft × 50
ASP● LIT

Runway intelligence

Which runway carries the operations, observed over the last 30 days

33
77% of ops
34 land · 0 TO
15
23% of ops
10 land · 1 TO
Runway 33 carries 77% of operations (34 landings, 0 takeoffs) over the last 30 days. The next most-used is 15 at 23%.

Approach quality

Per-runway unstable-approach, go-around, and long-rollout rates

33 34 landings
UA 0%
15 10 landings
UA 0%
Approaches to 33 show a 0% unstable-approach rate (0 UA events from 34 landings).Phase B will add wind-correlation: which crosswind band produces most UA events.

Traffic behavior

When the field is busy: hourly + weekday vs weekend

Daily avg
1.0
flights/day · 29 total
Busy hour (local)
6pm
also 4pm · 5pm
Day vs night
69%
06:00–20:00 local
Traffic concentrates around 5pm–6pm local, averaging 1.0 flights/day. Weekend volume runs 2.1× weekday (1.6 vs 0.8 daily).

Aircraft character

What's actually flying here: top types over the last 30 days

Activity is led by (18% of 28 flights). Top three types: , , .

Communications Frequencies

2026-06-11
Type Freq (MHz) Hours
CTAF 122.900
Airport operations
ARTCC:
ZOA
Elevation:
162 ft
Mag var:
15° E
© SkyMeter · All flight data subject to ODbL attribution · Updated 17:50 UTC