SOURCE: National Weather Service Portland, Oregon

PORTLAND's
Snowfall Records & CHRISTMAS SNOW



EARLIEST AND LATEST SNOWFALL 1 OF THE WINTER SEASON
(October 1940 - May 2007)
Days with Measurable 2 Snow Greatest 24-hour Greatest Snow Depth
Month Most Year Least Year Total Day(s) Year Total Day(s) Year
January 21 1950 0 1990 10.6 13 th -14 th 1950 15.0 31 st 1950
February 6 1990 0 1988 6.4 18 th -19 th 1993 14.0 1 st 1950
March 8 1951 0 1990 7.7 7 th - 8 th 1951 5.0 8 th 1951
April --- --- --- --- Trace multiple --- Trace 9 th 1980
May-June --- --- --- --- --- --- --- --- --- ---
October --- --- --- --- Trace multiple --- Trace 13 th 1984
November 5 1985 0 1990 7.4 21 st - 22 nd 1977 5.0 23 rd 1977
December 7 1968 0 1990 8.0 19 th 1964 11.0 20 th 1964
Season

(Jul-Jun)

24 1949

- 1950

0 1982

- 1983

10.6 January 13 th - 14 th, 1950 15 January 31 st, 1950
1 All precipitation measurements are in units of inches. Measurable snowfall is defined as snowfall of 0.01 inch or more.




EARLIEST AND LATEST SNOWFALL 1 OF THE WINTER SEASON
(October 1940 - April 2008)
Latest Snowfall in Winter Season of... Earliest Snowfall in Winter Season of...
Snowfall Date Snowfall Date
Trace or more Trace Mar 28, 2008 Trace or more Trace Oct. 31 st, 1955
0.1 inch or more 0.7 Mar. 10, 1951 0.1 inch or more 1.1 Nov. 11 th, 1955
1.0 inch or more 7.6 Mar. 8, 1951 1.0 inch or more 1.1 Nov. 11 th, 1955
2.0 inches or 7.6 Mar. 8, 1951 2.0 inches or 8.0 Dec. 19 th, 1964
1 All precipitation measurements are in units of inches.

HISTORY OF A WHITE CHRISTMAS

A white Christmas in the Portland area is rare. In fact, between the years of 1940 and 2007, snowflakes have fallen only six times on Christmas day, and only five times on Christmas Eve. Here is a list of the dates on which snow has fallen at the National Weather Service office at the Portland Int'l airport and snowfall totals.

On December 24th:

On December 25th:

Records from the old National Weather Service office in downtown Portland show that there has been more snow on past Christmases. Here are the top two snowiest Christmas days in since 1870:

PROBABILITY OF... receiving a Trace or more on Christmas Day 8.0%, and
receiving 0.1 inch or more on Christmas Day less than 1%