Temperature Monitoring Station:
FREDERICK POLICE BRKS

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		1.08
After quality control		1.08
After breakpoint alignment		1.02
Regional expectation during same months		1.05 ± 0.11
National average during same months		0.97 ± 0.10
Global land average during same months		1.05 ± 0.04

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 1.2	0.94
After Quality Control	± 1.2	0.94
After Breakpoint Adjustment	± 0.8	0.97

Quality Control Summary

Months missing 10 or more days	5
Serially repeated daily or monthly values	7
Extreme local outliers	0
Regional climatology outliers	0
Abrupt jumps	1
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	183345
COOP	183347
COOP	183348
COOP	183353
GHCND	USC00183345
GHCND	USC00183347
GHCND	USC00183348
GHCND	USC00183353
NCDC	12010040
NCDC	20009592
NCDC	20009593
NCDC	30001596
NWS	FBGM2
NWS	FREM2

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.