Temperature Monitoring Station:
CHICAGO SPRINGFIELD PUMP

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		1.59
After quality control		1.58
After breakpoint alignment		0.93
Regional expectation during same months		1.03 ± 0.15
National average during same months		0.95 ± 0.12
Global land average during same months		1.01 ± 0.05

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 3.8	0.73
After Quality Control	± 3.7	0.74
After Breakpoint Adjustment	± 3.6	0.74

Quality Control Summary

Months missing 10 or more days	6
Serially repeated daily or monthly values	10
Extreme local outliers	1
Regional climatology outliers	2
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	11

Station ID Codes

COOP	111526
COOP	111567
COOP	111582
COOP	111584
GHCND	USC00111526
GHCND	USC00111567
GHCND	USW00014881
GSOD	725346-94866
GSOD	725346-99999
GSOD	999999-14881
GSOD	999999-94866
ICAO	CGX
ICAO	KCGX
NCDC	20005926
NCDC	20005927
NCDC	20005939
NWS	CNSI2
USAF	725346
WBAN	14881
WBAN	94866

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.