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 anomalies1.06
After quality control0.97
After breakpoint alignment1.07
Regional expectation during same months1.10 ± 0.13
National average during same months 1.50 ± 0.10
Global land average during same months 1.07 ± 0.04

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 1.7 0.94
After Quality Control ± 1.7 0.94
After Breakpoint Adjustment ± 1.5 0.95

Quality Control Summary

Months missing 10 or more days 6
Serially repeated daily or monthly values 6
Extreme local outliers 3
Regional climatology outliers 3
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 9

Station ID Codes

FAAYBA
GHCNDCA003050519
GHCNDCA003050520
GHCNDCA003050526
GHCNM40371122000
GSOD711220-99999
GSOD711224-99999
GSOD711226-25163
GSOD711226-99999
GSOD717320-25112
GSOD741220-99999
HADCRU711220
ICAOCWZG
ICAOCYBA
NCDC20028079
NCDC20028153
USAF711220
USAF711224
USAF711226
USAF717320
USAF741220
WBAN25112
WBAN25163
WMO71122
WMO74122
WMSSC711220

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.