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 anomalies2.41
After quality control2.33
After breakpoint alignment1.93
Regional expectation during same months1.99 ± 0.24
National average during same months 1.70 ± 0.12
Global land average during same months 1.76 ± 0.09

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 2.5 0.76
After Quality Control ± 1.9 0.85
After Breakpoint Adjustment ± 1.9 0.84

Quality Control Summary

Months missing 10 or more days 50
Serially repeated daily or monthly values 19
Extreme local outliers 2
Regional climatology outliers 1
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 57

Station ID Codes

FAABLM
GHCNDUSW00004739
GHCNDUSW00004783
GHCNM42572409003
GSOD724084-04739
GSOD724084-54760
GSOD724084-99999
GSOD749022-99999
GSOD999999-04739
GSOD999999-04783
GSOD999999-54760
ICAOBLM
ICAOKBLM
NCDC20018834
NCDC20018836
NCDC20018972
USAF724084
USAF749022
WBAN4739
WBAN4783
WBAN54760

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.