Temperature Monitoring Station:
AL HUDAYDAH/HODEIDA

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 anomalies		-2.74
After quality control		-4.32
After breakpoint alignment		1.68
Regional expectation during same months		2.58 ± 0.85
National average during same months		2.57 ± 1.06
Global land average during same months		2.13 ± 0.13

Regional Consistency

Comparison of monthly mean station data to regional expectation

	Typical Difference (°C, 95% range)	Correlation (R value)
Raw Monthly Anomalies	± 2.2	0.10
After Quality Control	± 2.0	-0.02
After Breakpoint Adjustment	± 1.3	0.54

Quality Control Summary

Months missing 10 or more days	163
Serially repeated daily or monthly values	41
Extreme local outliers	3
Regional climatology outliers	0
Abrupt jumps	0
Marked as bad or manually changed by source	0
Exceeds global climatological range	0
Isolated observations	13
Frame shift repetitions	6
TMAX / TMIN inconsistency	0
TAVG outside TMAX / TMIN range	1
Total Observations Rejected by Quality Control	178

Station ID Codes

GSOD	405780-99999
GSOD	413600-99999
GSOD	414310-99999
ICAO	OYHD
USAF	405780
USAF	413600
USAF	414310
WMO	41431

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.