Temperature Monitoring Station:
BIG TROUT LAKE READAC, ONT.

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		8.56
After quality control		4.72
After breakpoint alignment		1.63
Regional expectation during same months		1.77 ± 0.39
National average during same months		1.55 ± 0.08
Global land average during same months		1.35 ± 0.06

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 8.8	0.52
After Quality Control	± 4.0	0.78
After Breakpoint Adjustment	± 2.6	0.87

Quality Control Summary

Months missing 10 or more days	2
Serially repeated daily or monthly values	3
Extreme local outliers	0
Regional climatology outliers	39
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	42

Station ID Codes

GHCND	CA006010738
GHCNM	40371844000
GSOD	712080-99999
GSOD	716750-99999
GSOD	718440-99999
GSOD	728480-99999
HADCRU	718480
ICAO	COTL
ICAO	CTBL
ICAO	CYTL
USAF	712080
USAF	716750
USAF	718440
USAF	728480
WMO	71208
WMO	71675
WMO	71844
WMO	72848
WMSSC	718440

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.