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 anomalies3.70
After quality control3.82
After breakpoint alignment3.60
Regional expectation during same months3.44 ± 0.33
National average during same months 3.22 ± 0.17
Global land average during same months 2.06 ± 0.10

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 2.3 0.94
After Quality Control ± 2.0 0.95
After Breakpoint Adjustment ± 2.0 0.95

Quality Control Summary

Months missing 10 or more days 25
Serially repeated daily or monthly values 8
Extreme local outliers 0
Regional climatology outliers 5
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 31

Station ID Codes

FAACYUW
GHCNDCA002401030
GHCNM40371092000
GSOD710920-99999
GSOD710924-99999
GSOD740920-99999
HADCRU710920
ICAOCWUW
ICAOYUW
NCDC20028481
USAF710920
USAF710924
USAF740920
WBAN16795
WMO71092
WMSSC710920

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.