Temperature Monitoring Station:
ALPENA/PHELPS COLLINS, MI.

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		1.03
After quality control		1.02
After breakpoint alignment		1.16
Regional expectation during same months		1.24 ± 0.13
National average during same months		0.88 ± 0.13
Global land average during same months		0.98 ± 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	0.93
After Quality Control	± 1.5	0.93
After Breakpoint Adjustment	± 1.3	0.94

Quality Control Summary

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

Station ID Codes

COOP	200164
FAA	APN
GHCND	USW00094849
GHCNM	42572639000
GSOD	726390-94849
HADCRU	726390
ICAO	KAPN
NCDC	20010361
NWS	APN
USAF	726390
WBAN	94849
WMO	72639
WMSSC	726390
WWR	72639

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.