Coordinates: 33.12825, -117.28008
Elevation: 331 ft MSL
Surface airspace: Class D

Two-way radio communication must be established before you enter, while the tower is open.
The same callsign rule as Class C. When the tower closes the airspace usually reverts to Class E, or to Class G where no surface area is charted — the Chart Supplement entry says which, and the hours are on the sectional. A surface area normally extends to 2,500 ft above the field, with the ceiling charted in a dashed blue box as a number in hundreds of feet.
Sunrise / sunset: 1416Z / 0050Z
Tower hours: 0700-2200
Magnetic variation: 14°E (1980)
Fuel: 100LL,A
Sectional: Los Angeles
County: San Diego, CA

Airport diagram

Everything else KCRQ publishes — in the EFB →

Runways

Runway	Length (ft)	Width (ft)	Surface	Lights
06/24	4,897	150	ASPH	HIGH
H1	40	50	CONC	HIGH

Frequencies

ATIS: 120.15
Tower 0700-2200: 118.6
Ground: 121.8
Clearance: 134.85
CTAF: 118.6
Approach: 127.3

Published procedures

6 approaches — ILS, LOC, RNAV (GPS), RNAV (RNP)
2 departures published
1 arrival published

Read the approach plates georeferenced — in the EFB →

Nearby airports

KOKB Bob Maxwell Meml Airfield6 nm
KNFG Camp Pendleton Mcas (Munn Fld)11 nm
KNKX Miramar Mcas (Joe Foss Fld)17 nm
KRNM Ramona19 nm
KMYF Montgomery-Gibbs Exec20 nm
KSEE Gillespie Fld24 nm

Elsewhere

Make a poster of the KCRQ airport diagram or an approach plate
Other California airports
How to read a METAR
What VFR, MVFR, IFR and LIFR actually mean
Live records — the strongest winds and lowest ceilings in the country right now

Weather from METAR and TAF, National Weather Service Aviation Weather Center. Airport, runway, frequency and procedure data from the FAA NASR 28-day cycle; charts from the FAA d-TPP. Advisory only — this is not a weather briefing.