Temperature Monitoring Station:
ROCKLAND KNOX CO RGNL AP

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		0.42
After quality control		0.27
After breakpoint alignment		1.22
Regional expectation during same months		1.30 ± 0.19
National average during same months		1.09 ± 0.10
Global land average during same months		1.33 ± 0.06

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 2.1	0.79
After Quality Control	± 1.7	0.85
After Breakpoint Adjustment	± 1.5	0.89

Quality Control Summary

Months missing 10 or more days	40
Serially repeated daily or monthly values	18
Extreme local outliers	2
Regional climatology outliers	1
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	1
Total Observations Rejected by Quality Control	43

Station ID Codes

COOP	177250
FAA	RKD
GHCND	USC00177250
GSOD	726079-94601
GSOD	726079-99999
GSOD	999999-94601
ICAO	KRKD
NCDC	20009729
NCDC	20009733
NCDC	20009736
USAF	726079
WBAN	94601

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.