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 anomalies0.07
After quality control0.18
After breakpoint alignment0.64
Regional expectation during same months0.83 ± 0.17
National average during same months 0.77 ± 0.19
Global land average during same months 0.88 ± 0.09

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 1.8 0.66
After Quality Control ± 1.5 0.73
After Breakpoint Adjustment ± 1.3 0.79

Quality Control Summary

Months missing 10 or more days 1
Serially repeated daily or monthly values 1
Extreme local outliers 12
Regional climatology outliers 9
Abrupt jumps 2
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 15

Station ID Codes

GHCNM50793116001
GHCNM50793116002
GHCNM50793116003
GHCNM50793119000
GSOD931150-99999
GSOD931190-99999
HADCRU931140
HADCRU931150
HADCRU931190
ICAONZAA
USAF931150
USAF931190
WMO93119
WMSSC931140
WMSSC931150
WMSSC931190

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.