Temperature Monitoring Station:
ATHENS CLARKE 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		1.27
After quality control		1.26
After breakpoint alignment		0.92
Regional expectation during same months		0.92 ± 0.07
National average during same months		1.50 ± 0.09
Global land average during same months		1.58 ± 0.06

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.0	0.95
After Quality Control	± 1.0	0.95
After Breakpoint Adjustment	± 0.9	0.96

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	90435
FAA	AHN
GHCND	USW00013873
GHCNM	42572311000
GSOD	723110-13873
GSOD	999999-13873
HADCRU	723110
ICAO	KAHN
NCDC	20004943
NWS	AHN
USAF	723110
WBAN	13873
WMO	72311
WWR	72311

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.