Temperature Monitoring Station:
GRAND RAPIDS KENT COUNTY ARPT

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		0.25
After quality control		0.24
After breakpoint alignment		0.94
Regional expectation during same months		0.98 ± 0.15
National average during same months		0.90 ± 0.11
Global land average during same months		1.05 ± 0.04

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.2	0.95
After Quality Control	± 1.2	0.95
After Breakpoint Adjustment	± 1.0	0.97

Quality Control Summary

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

Station ID Codes

COOP	203332
COOP	203333
COOP	203337
FAA	GRR
GHCND	USC00203337
GHCND	USW00014830
GHCND	USW00094860
GHCNM	42572635000
GSOD	726350-94860
GSOD	999999-14830
GSOD	999999-14885
GSOD	999999-94860
HADCRU	726350
ICAO	KGRR
NCDC	20010114
NCDC	20010121
NCDC	20010134
NCDC	30001856
NWS	GRR
USAF	726350
WBAN	14830
WBAN	14885
WBAN	94860
WMO	72635
WMSSC	726350
WWR	72635

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.