Temperature Monitoring Station:
ADAK ALASKA U.S. A

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		0.60
After quality control		0.51
After breakpoint alignment		1.08
Regional expectation during same months		1.20 ± 0.54
National average during same months		1.23 ± 0.10
Global land average during same months		1.42 ± 0.06

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.3	0.78
After Quality Control	± 1.2	0.81
After Breakpoint Adjustment	± 1.1	0.84

Quality Control Summary

Months missing 10 or more days	71
Serially repeated daily or monthly values	34
Extreme local outliers	2
Regional climatology outliers	4
Abrupt jumps	1
Marked as bad or manually changed by source	0
Exceeds global climatological range	0
Isolated observations	3
Frame shift repetitions	0
TMAX / TMIN inconsistency	0
TAVG outside TMAX / TMIN range	1
Total Observations Rejected by Quality Control	81

Station ID Codes

COOP	500026
FAA	ADK
GHCND	USW00025704
GHCNM	42570454000
GSOD	704540-25704
GSOD	704540-99999
GSOD	999999-25701
HADCRU	704540
ICAO	PADK
NCDC	20021744
NCDC	20021745
NWS	ADK
USAF	704540
WBAN	25701
WBAN	25704
WMO	70454
WMSSC	704540
WWR	70454

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.