Temperature Monitoring Station:
PORTLAND/INTNL. JET PORT, ME.

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		0.49
After quality control		0.48
After breakpoint alignment		1.17
Regional expectation during same months		1.17 ± 0.09
National average during same months		0.88 ± 0.13
Global land average during same months		0.99 ± 0.06

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.6	0.88
After Quality Control	± 1.6	0.88
After Breakpoint Adjustment	± 1.2	0.93

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	176900
COOP	176902
COOP	176905
FAA	PWM
GHCND	USC00176900
GHCND	USC00176902
GHCND	USW00014764
GHCNM	42500176905
GHCNM	42572606000
GSOD	726060-14764
GSOD	726087-99999
GSOD	997275-99999
GSOD	999999-14764
GSOD	999999-94734
HADCRU	726060
ICAO	CASM1
ICAO	K2B8
ICAO	KPWM
NCDC	20009701
NCDC	20009702
NCDC	20009703
NWS	PWM
USAF	726060
USAF	726087
USAF	997275
WBAN	14764
WBAN	94734
WMO	72606
WMSSC	726060
WWR	72606

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.