Temperature Monitoring Station:
GREAT FALLS GORE FIELD

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		-0.30
After quality control		-0.32
After breakpoint alignment		1.02
Regional expectation during same months		1.04 ± 0.14
National average during same months		0.93 ± 0.10
Global land average during same months		1.06 ± 0.04

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 2.7	0.90
After Quality Control	± 2.6	0.89
After Breakpoint Adjustment	± 2.4	0.91

Quality Control Summary

Months missing 10 or more days	1
Serially repeated daily or monthly values	1
Extreme local outliers	2
Regional climatology outliers	5
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	6

Station ID Codes

COOP	243749
COOP	243751
FAA	GTF
GHCND	USC00243749
GHCND	USW00024143
GHCNM	42500243751
GHCNM	42572776000
GSOD	727750-24143
GSOD	727760-99999
GSOD	999999-24143
HADCRU	727750
ICAO	KGTF
ICAO	KTFX
NCDC	20012598
NCDC	20012609
NCDC	30001925
NWS	GTF
NWS	GTFM8
USAF	727750
USAF	727760
WBAN	24143
WBAN	4102
WMO	72775
WMO	72776
WMSSC	727750
WWR	72775

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.