Temperature Monitoring Station:
ST IGNACE MACKINAC BR

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		1.01
After quality control		0.99
After breakpoint alignment		1.16
Regional expectation during same months		1.17 ± 0.11
National average during same months		0.96 ± 0.10
Global land average during same months		1.08 ± 0.03

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.8	0.89
After Quality Control	± 1.6	0.91
After Breakpoint Adjustment	± 1.4	0.93

Quality Control Summary

Months missing 10 or more days	27
Serially repeated daily or monthly values	36
Extreme local outliers	3
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	1
Total Observations Rejected by Quality Control	50

Station ID Codes

COOP	207271
COOP	207274
COOP	207275
GHCND	USC00207271
GHCND	USC00207274
GHCND	USC00207275
NCDC	20010423
NCDC	20010424
NCDC	30015216
NWS	STIM4
WBAN	14876

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.