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 anomalies135.43
After quality control7.81
After breakpoint alignment7.38
Regional expectation during same months6.53 ± 4.34
National average during same months 4.57 ± 1.57
Global land average during same months 3.30 ± 0.22

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 28.7 0.11
After Quality Control ± 2.6 0.88
After Breakpoint Adjustment ± 2.5 0.90

Quality Control Summary

Months missing 10 or more days 25
Serially repeated daily or monthly values 11
Extreme local outliers 0
Regional climatology outliers 19
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 28

Station ID Codes

GHCNDAYW00057801
GSOD890830-57801
GSOD892840-99999
HADCRU890830
NCDC20028960
USAF890830
USAF892840
WBAN57801
WMO89083
WMO89284
WMSSC899991

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.