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 anomalies4.17
After quality control5.32
After breakpoint alignment2.40
Regional expectation during same months2.12 ± 0.21
National average during same months 1.03 ± 0.11
Global land average during same months 1.27 ± 0.05

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 2.7 0.81
After Quality Control ± 2.3 0.85
After Breakpoint Adjustment ± 1.7 0.87

Quality Control Summary

Months missing 10 or more days 18
Serially repeated daily or monthly values 12
Extreme local outliers 1
Regional climatology outliers 2
Abrupt jumps 0
Marked as bad or manually changed by source 0
Exceeds global climatological range 0
Isolated observations 2
Frame shift repetitions 0
TMAX / TMIN inconsistency 0
TAVG outside TMAX / TMIN range 0
Total Observations Rejected by Quality Control 25

Station ID Codes

COOP46159
COOP46162
COOP46165
GHCNDUSC00046162
GHCNDUSC00046165
GHCNDUSW00023180
GSOD720046-99999
GSOD999999-23180
ICAOK3A6
NCDC20001856
NCDC20001862
NCDC20003312
NWSNEHC1
NWSNEWC1
USAF720046
WBAN23180

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.