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-5.90
After quality control-0.61
After breakpoint alignment0.54
Regional expectation during same months0.58 ± 0.26
National average during same months 0.63 ± 0.22
Global land average during same months 0.88 ± 0.07

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 13.2 0.07
After Quality Control ± 1.7 0.77
After Breakpoint Adjustment ± 1.2 0.88

Quality Control Summary

Months missing 10 or more days 111
Serially repeated daily or monthly values 111
Extreme local outliers 114
Regional climatology outliers 123
Abrupt jumps 2
Marked as bad or manually changed by source 0
Exceeds global climatological range 0
Isolated observations 1
Frame shift repetitions 0
TMAX / TMIN inconsistency 0
TAVG outside TMAX / TMIN range 0
Total Observations Rejected by Quality Control 235

Station ID Codes

FAAVIAG
GHCNDIN023010600
GHCNDIN023011900
GHCNM20742260000
GHCNM20742261000
GSOD422600-99999
GSOD422610-99999
HADCRU422610
ICAOVIAG
NCDC20029439
USAF422600
USAF422610
WBAN32701
WMO42260
WMO42261
WMSSC422610

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.