Airports / KM90 / William Robert Johnston Municipal AirportModerate ground coverage
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
1
0.0%
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. SkyMeter has observed roughly 1 arrivals and 0 departures per day on average over the last 7 days.

Current weather

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

45m ago
Temp
90°F
Wind
10 kts
180°
Visib
10+ km
Ceil
KFAT 272353Z 18010KT 10SM SCT070 BKN130 BKN180 32/11 A2995 RMK AO2 SLP136 60000 T03220106 10328 20283 58018

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
81% of ops
22 land · 0 TO
15
19% of ops
5 land · 0 TO
Runway 33 carries 81% of operations (22 landings, 0 takeoffs) over the last 30 days. The next most-used is 15 at 19%.

Approach quality

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

33 22 landings
UA 0%
15 5 landings
UA 0%
Approaches to 33 show a 0% unstable-approach rate (0 UA events from 22 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)
4pm
also 6pm · 1am
Day vs night
66%
06:00–20:00 local
Traffic concentrates around 1am–4pm local, averaging 1.0 flights/day. Weekend volume runs 1.6× weekday (1.4 vs 0.9 daily).

Aircraft character

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

Activity is led by (14% of 29 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 00:38 UTC