Nature Notes From Crater Lake
Volume 18, 1952
The Big Snow of 1951-52
By Louis W. Hallock, Chief Ranger

The winter of 1951-52 at Crater Lake
was preceded by a long dry summer during which there was practically no
precipitation after May 13 until the first general fall storms. Most of
the residents of the park were anticipating an "easy" winter but by
April of 1952 all of us knew we had been through a winter of record
breaking snowfall and snow depths.
Weather records have been kept in the
park for about 26 years except for the war years and these records show
that the average snowfall for Crater Lake is 622.0 inches. This average
has been exceeded each year since 1948 and for several winters
previously. The record snowfall for the park occurred during the winter
of 1932-33 when 879.0 inches of snowfall was recorded between October 1,
1932 and September 30, 1933, which is the weather year for the park.
Snow depths on the ground are in direct
proportion to the snowfall so that recorded depths of between 100 inches
and 200 inches of snow are common. These greatest depths of snow usually
occur during the months of January, February, and March. For example,
snow depths for March 1949, 1950, and 1951 were recorded at the Park
Headquarters weather station as 171, 180, and 197 inches respectively.
The past winter, however, while not
breaking any records for snowfall did result in the greatest recorded
depths of snow on the ground since park records have been kept. On March
1, 1952 there was 177 inches of snow on the ground which was only 31
inches from the record. A storm which began on the 3rd and ended on the
8th resulted in 39 inches of snowfall and increased the total depth to
200 inches. It was at this point we realized that if the normal cycle of
storms continued, we would break a record. Thereafter, each storm, even
though adding to our inconvenience of living and working in heavy snow,
was watched with interest and anticipation. Another storm moved in from
the southwest on the 9th and continued through the 15th and gave us
another 38 inches of snowfall. The depth as recorded reached 201 inches,
only 7 inches shy of the record we still hoped would be broken. There
still remained 15 days of the month of heaviest snowfall - we should see
the record broken.
March 16 was clear and comparatively
warm, maximum temperature 37 degrees. Still another storm crossed the
Cascades on the 17th and continued through the 20th. This storm carried
enough moisture to satisfy our anticipation. In four days 42 inches of
snow fell. At the beginning of this four day period the measured depth
on the ground was 198 inches. On the second day a total depth of 207
inches was recorded - only one inch shy of the record. Then on the 18th
6 inches of snow fell followed by 10 inches more on the 19th. This was
it! At 4:00 P.M. on the 19th the measuring stake recorded 216 inches.
The record had been smashed but it continued snowing, and we speculated
on how much greater the depth would be. On the morning of March 20, 1952
the measurement reached 224 inches of snow on the ground. During the
day, however, the storm moved on and the new snow gradually settled to
218 inches, still a record.
By the end of March there had been
measured 798 inches of snowfall, and we now set our sights on the
breaking of the record for total snowfall, but this was not to be. The
last snowfall on June 14, brought the total to 835 inches, some 44
inches short of a record.
The snowpack for the winter, which is
measured periodically to determine water content, was found to be more
compact and with more water than for many years previously. Water users
in the entire state of Oregon were assured an ample supply for the
coming season.


The big snow of 1951-52 as shown by Chief Ranger
Hallock's photographs.