Temperature Monitoring Station:
GREENHAM COMMON RAF

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		4.87
After quality control		5.59
After breakpoint alignment		1.32
Regional expectation during same months		-0.30 ± 0.23
National average during same months		-0.49 ± 0.23
Global land average during same months		1.28 ± 0.07

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 3.0	0.72
After Quality Control	± 2.8	0.73
After Breakpoint Adjustment	± 2.5	0.75

Quality Control Summary

Months missing 10 or more days	70
Serially repeated daily or monthly values	19
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	2
Frame shift repetitions	0
TMAX / TMIN inconsistency	0
TAVG outside TMAX / TMIN range	0
Total Observations Rejected by Quality Control	74

Station ID Codes

FAA	EGVI
GHCND	UKW00015040
GHCNM	65103761001
GSOD	037435-99999
GSOD	999999-15040
ICAO	EGVI
NCDC	20030094
USAF	37435
WBAN	15040

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.