Temperature Monitoring Station:
PALO ALTO ARPT OF SA

Monthly Mean Temperature Data

Raw Data relative to Expected Monthly Means

Difference from Regional Expectation

Breakpoint Adjusted Annual Average Comparison

Mean Rate of Change ( °C / Century )

Raw monthly anomalies		1.58
After quality control		1.59
After breakpoint alignment		0.93
Regional expectation during same months		0.86 ± 0.16
National average during same months		0.88 ± 0.10
Global land average during same months		1.12 ± 0.05

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.6	0.78
After Quality Control	± 1.6	0.78
After Breakpoint Adjustment	± 1.4	0.81

Quality Control Summary

Months missing 10 or more days	14
Serially repeated daily or monthly values	10
Extreme local outliers	0
Regional climatology outliers	1
Abrupt jumps	0
Marked as bad or manually changed by source	0
Exceeds global climatological range	0
Isolated observations	0
Frame shift repetitions	0
TMAX / TMIN inconsistency	0
TAVG outside TMAX / TMIN range	0
Total Observations Rejected by Quality Control	16

Station ID Codes

COOP	46642
COOP	46646
FAA	PAO
GHCND	USC00046642
GHCND	USC00046646
GSOD	724937-23289
GSOD	724937-99999
GSOD	999999-23289
ICAO	KPAO
NCDC	20002414
NCDC	20002424
NCDC	20002425
NWS	POAC1
USAF	724937
WBAN	23289

ID codes may be repeated if the identification of the station changed during its history or if two different records were found to contain the same data, in which case the records would be merged.