The study shows the factors affecting rain precipitation, general
rate and annual, monthly and daily changes by calculating the
standard deviation and the annual fluctuation. The standard
deviation from the general average shows large values in th
e
stations located in the north of the study area. Stations in the
center and south, because of the nature of the dry climate, as well
as that the increase in the number of rainy days does not
necessarily mean an increase in the amount of precipitation, and a
difference in the amount of rainfall from one station to another
because of the difference in climatic factors affecting them .
This paper focuses on climate change in Nineveh based on climatological data records in
this governorate. The general trend of the temperature appeared to surpass its average mean.
The severe hot days also increased in summer, the precipitation in
general deceased practically
in the last two decades, irregular and delayed distribution of the rain, as well as drought cycles
did occur.