Temperature Monitoring Station:
REYKJAVIK

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		0.95
After quality control		0.94
After breakpoint alignment		0.67
Regional expectation during same months		0.78 ± 0.12
National average during same months		0.77 ± 0.12
Global land average during same months		0.96 ± 0.06

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 3.5	0.63
After Quality Control	± 3.5	0.63
After Breakpoint Adjustment	± 3.5	0.62

Quality Control Summary

Months missing 10 or more days	1
Serially repeated daily or monthly values	1
Extreme local outliers	1
Regional climatology outliers	1
Abrupt jumps	2
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	4

Station ID Codes

GHCND	IC000004030
GHCNM	62004030000
GSOD	040300-99999
GSOD	041300-99999
HADCRU	40300
ICAO	BIRK
NCDC	20029431
NCDC	20029432
USAF	40300
USAF	41300
WBAN	16202
WBAN	16203
WMO	4030
WMO	4130
WMSSC	40300
WWR	04030

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.