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 anomalies1.44
After quality control1.27
After breakpoint alignment2.80
Regional expectation during same months2.70 ± 0.65
National average during same months 2.38 ± 0.13
Global land average during same months 2.76 ± 0.10

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 1.8 0.84
After Quality Control ± 1.0 0.94
After Breakpoint Adjustment ± 0.8 0.96

Quality Control Summary

Months missing 10 or more days 23
Serially repeated daily or monthly values 21
Extreme local outliers 3
Regional climatology outliers 4
Abrupt jumps 0
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 27

Station ID Codes

FAA46W
GSOD720066-99999
GSOD746990-99999
GSOD994040-99999
GSOD997030-99999
ICAODB703
ICAOFPSN7
ICAOK46W
NCDC20013539
USAF720066
USAF746990
USAF994040
USAF997030
WBAN93761
WBAN93792
WMO74699

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.