  Previous studies on the impact and influence of solar activity on terrestrial
weather has yielded contradictory results in literature. Present study
presents, on a global scale, the correlation between surface air temperature
and two solar activity indices (Sunspot number, 'Rz', and solar radio flux at
10.7, 'F10.7' ) at different time scales during solar cycle 23. Global air
temperature has higher correlation values of $\pm 0.8$ with F10.7 compared to
Rz ($\pm 0.3$). Our results showed hemispheric delineation of the correlation
between air temperature and solar activity with negative correlation in the
southern hemisphere and positive correlation in the northern hemisphere. At the
onset of the solar cycle, this hemispheric delineation pattern was prevalent,
however, an inverse hemispheric delineation was observed at the recession of
the solar cycle.
