Temperature Monitoring Station:
SMITHERS AIRPORT

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		1.71
After quality control		1.63
After breakpoint alignment		1.19
Regional expectation during same months		1.31 ± 0.12
National average during same months		1.62 ± 0.08
Global land average during same months		1.31 ± 0.06

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.5	0.95
After Quality Control	± 1.5	0.95
After Breakpoint Adjustment	± 1.5	0.95

Quality Control Summary

Months missing 10 or more days	1
Serially repeated daily or monthly values	1
Extreme local outliers	0
Regional climatology outliers	3
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	4

Station ID Codes

FAA	YYD
GHCND	CA001077500
GHCND	CA001077505
GHCNM	40371950000
GSOD	719500-99999
GSOD	729500-99999
HADCRU	719500
ICAO	CYYD
NCDC	20028178
USAF	719500
USAF	729500
WBAN	25225
WMO	71950
WMO	72950
WMSSC	719500

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.