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 anomalies1.25
After quality control1.21
After breakpoint alignment1.20
Regional expectation during same months1.08 ± 0.14
National average during same months 0.96 ± 0.11
Global land average during same months 0.91 ± 0.08

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 2.0 0.93
After Quality Control ± 2.0 0.93
After Breakpoint Adjustment ± 2.0 0.93

Quality Control Summary

Months missing 10 or more days 1
Serially repeated daily or monthly values 1
Extreme local outliers 0
Regional climatology outliers 3
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 6

Station ID Codes

GHCNDSW000002196
GHCNM64502196000
GSOD020580-99999
GSOD021960-99999
GSOD021970-99999
HADCRU21960
USAF20580
USAF21960
USAF21970
WMO2196
WMO2197
WMSSC21960
WWR02196

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.