Norway Yearbook - 1996

Annual precipitation
Vardo
The term annual precipitation means normal annual precipitation.
which is the average of the annual precipitation
values for the period 1960-1990. Precipitation in a single
year can vary substantially from the normal annual
precipitation. A precipitation height of 1 mm means
that i litre of water has fallen on i m2.
Certain areas in Western Norway are among
the wettest regions in Europe. The reason for
this is that moist masses of air moving in
from the west are forced upwards by the
high coastal mountains, resulting in
precipitation. The interior of Eastern
Norway and the Finnmark Plateau
are sheltered from the wind
directions causing high precipitation
in Western Norway and
along the coast farther north to
Lofoten.
Tromsø
Hammer! est
In Southern Norway, documented
precipitation varies from 278 mm
at Skjàk in Gudbrandsdalen to
3.575 mm at Brekke in
Sogn. In Northern Norway,
annual precipitation varies
from 282 mm in Dividalen
Broysurdt
in Troms to 2,935 mm at
Brattland in Nordland. The
highest annual precipitation
values, for example on
glaciers, are calculated
on the basis of snow
amounts.
Annual precipitation
in mm
r