Predicting Weather By The Moon - Xavier University Libraries

Predicting
At this phase, the Moon is in the sky from early
morning to early evening. It cannot be seen as there is too
much sunlight around. It is higher in sky in summer which
increases the effect of the atmospheric tide, and therefore
the likelihood of unpleasant weather, at night. As the New
Moon passes through a solstice or maximum declination (
June 22nd or December 22nd)it tends to slow, creating a
stationary weather system if summer.
If a winter New Moon, there is a likelihood of snow
at night. If accompanied by a Moon in Perigee, expect a
storm if summer, gusty winds and cloud if autumn.On the
other hand, if Moon is in apogee, if summer, a heatwave is
possible.
Atmospheric tide higher in day, lower at night
A New Moon at the time of the March equinox brings
daytime gales.
FIRST QUARTER (DAY MOON)
1 st Quarter Moon rises just after lunch, sets just after
midnight
This is the most settled phase, storms occurring least
between now and Full Moon. It is commonly a time of
weakened poleward upper air heat flow. Because of the
magnetic shielding effect from the Sun, there is some diminished
electrical presence. If a tornado occurs in the
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