Temperature Monitoring Station:
IWO JIMA AFB

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		-9.97
After quality control		5.01
After breakpoint alignment		3.31
Regional expectation during same months		4.20 ± 1.98
National average during same months		2.59 ± 0.70
Global land average during same months		1.20 ± 0.37

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 7.0	0.21
After Quality Control	± 0.4	0.97
After Breakpoint Adjustment	± 0.4	0.96

Quality Control Summary

Months missing 10 or more days	18
Serially repeated daily or monthly values	1
Extreme local outliers	2
Regional climatology outliers	11
Abrupt jumps	0
Marked as bad or manually changed by source	0
Exceeds global climatological range	0
Isolated observations	8
Frame shift repetitions	0
TMAX / TMIN inconsistency	0
TAVG outside TMAX / TMIN range	0
Total Observations Rejected by Quality Control	27

Station ID Codes

COOP	914290
FAA	RIWO
GHCND	JAC00914290
GHCND	JAW00042401
GHCNM	21047981000
NCDC	20030377
NCDC	20030448
WBAN	42401
WMO	47981

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.