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 anomalies0.45
After quality control0.50
After breakpoint alignment1.26
Regional expectation during same months1.33 ± 0.06
National average during same months 1.47 ± 0.07
Global land average during same months 1.12 ± 0.02

Regional Consistency

Comparison of monthly mean station data to regional expectation

Typical Difference
(°C, 95% range)
Correlation
(R value)
Raw Monthly Anomalies ± 2.1 0.89
After Quality Control ± 1.8 0.91
After Breakpoint Adjustment ± 1.7 0.93

Quality Control Summary

Months missing 10 or more days 14
Serially repeated daily or monthly values 6
Extreme local outliers 3
Regional climatology outliers 3
Abrupt jumps 0
Marked as bad or manually changed by source 0
Exceeds global climatological range 0
Isolated observations 0
Frame shift repetitions 1
TMAX / TMIN inconsistency 0
TAVG outside TMAX / TMIN range 0
Total Observations Rejected by Quality Control 16

Station ID Codes

FAACYMW
GHCNDCA007034480
GHCNDCA007034481
GHCNDCA007034482
GHCNM40371722000
GSOD717210-54719
GSOD717210-99999
GSOD717220-99999
GSOD727220-99999
HADCRU717220
ICAOCWMJ
ICAOCWMW
NCDC20028749
NCDC20028830
USAF717210
USAF717220
USAF727220
WBAN4734
WBAN54719
WMO71721
WMO71722
WMSSC717210
WMSSC717220
WWR71722

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.