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-1.50
After quality control-0.11
After breakpoint alignment1.08
Regional expectation during same months1.06 ± 0.23
National average during same months -
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 ± 5.9 -0.02
After Quality Control ± 1.2 0.38
After Breakpoint Adjustment ± 0.4 0.93

Quality Control Summary

Months missing 10 or more days 34
Serially repeated daily or monthly values 13
Extreme local outliers 20
Regional climatology outliers 26
Abrupt jumps 0
Marked as bad or manually changed by source 0
Exceeds global climatological range 0
Isolated observations 15
Frame shift repetitions 0
TMAX / TMIN inconsistency 0
TAVG outside TMAX / TMIN range 0
Total Observations Rejected by Quality Control 52

Station ID Codes

CA476
GHCNM50691530001
GSOD915300-99999
GSOD915310-99999
HADCRU915300
ICAOANAU
USAF915300
USAF915310
WMO91530
WMO91531
WMSSC915300

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.