Temperature Monitoring Station:
WALLOPS ISLAND NASA TEST FACIL

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		3.80
After quality control		3.75
After breakpoint alignment		2.84
Regional expectation during same months		2.56 ± 0.16
National average during same months		2.61 ± 0.12
Global land average during same months		2.46 ± 0.11

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.4	0.91
After Quality Control	± 1.4	0.91
After Breakpoint Adjustment	± 1.3	0.92

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	448849
FAA	WAL
GHCND	USW00093739
GHCNM	42572402001
GSOD	724024-93739
GSOD	999999-93739
HADCRU	724020
ICAO	KWAL
NCDC	20027167
NWS	WAL
USAF	724024
WBAN	93739
WMO	72402

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.