Temperature Monitoring Station:
MIDDLETOWN HARRISBURG INTL AP

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		1.42
After quality control		1.40
After breakpoint alignment		0.85
Regional expectation during same months		0.94 ± 0.15
National average during same months		0.84 ± 0.11
Global land average during same months		1.20 ± 0.06

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.5	0.91
After Quality Control	± 1.4	0.92
After Breakpoint Adjustment	± 1.3	0.93

Quality Control Summary

Months missing 10 or more days	5
Serially repeated daily or monthly values	6
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	8

Station ID Codes

COOP	365703
FAA	MDT
GHCND	USW00014711
GHCNM	42574002006
GSOD	723990-14711
GSOD	723990-99999
GSOD	725115-14711
ICAO	KMDT
NCDC	20016665
NWS	MDT
USAF	723990
USAF	725115
WBAN	14711
WMO	72399

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.