Temperature Monitoring Station:
OMAK AIRPORT

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		0.37
After quality control		0.42
After breakpoint alignment		0.96
Regional expectation during same months		1.01 ± 0.09
National average during same months		0.93 ± 0.08
Global land average during same months		1.12 ± 0.02

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 3.5	0.71
After Quality Control	± 3.4	0.71
After Breakpoint Adjustment	± 3.2	0.72

Quality Control Summary

Months missing 10 or more days	30
Serially repeated daily or monthly values	15
Extreme local outliers	1
Regional climatology outliers	1
Abrupt jumps	1
Marked as bad or manually changed by source	1
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	31

Station ID Codes

COOP	456121
COOP	456123
FAA	4OM
FAA	OMK
GHCND	USC00456121
GHCND	USW00094197
GSOD	727890-94197
GSOD	727890-99999
GSOD	999999-94197
ICAO	KOMK
NCDC	20027927
NCDC	20027928
NCDC	20027938
NWS	4OM
NWS	OAKW1
USAF	727890
WBAN	94147
WBAN	94197
WMO	72789

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.