PORTLAND INTL AIRPORT, OR

Total of Snowfall (Inches)

(356751)

File last updated on April 20, 2024
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.

YEAR(S)JULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNANN
1937-38-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1938-39-----z-----z-----z-----z-----z-----z-----z5.10 0.00 0.00 0.00 0.00 5.10g
1939-400.00 0.00 0.00 0.00 0.00 0.00 0.00d0.00 0.00 0.00 0.00 0.00 0.00
1940-410.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1941-420.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00 0.00 0.00 0.00 0.00
1942-430.00 0.00 0.00 0.00 0.00 2.00 17.30 0.00 0.00 0.00 0.00 0.00 19.30
1943-440.00 0.00 0.00 0.00 0.00a-----z0.20 0.00a0.00 0.00 0.00 0.00 0.20a
1944-450.00 0.00 0.00 0.00 -----z0.00a0.00 0.00 0.00 0.00 0.00 0.00 0.00a
1945-460.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.60 0.00 0.00 0.00 0.60
1946-470.00 0.00 0.00 0.00 0.50 0.00 2.00 -----z-----z0.00 0.00 0.00 2.50b
1947-480.00 0.00 0.00 0.00 0.00 0.00 0.90 0.30 0.00 0.00 0.00 0.00 1.20
1948-490.00 0.00 0.00 0.00 0.00 0.00 9.80 13.20 0.00 0.00 0.00 0.00 23.00
1949-500.00 0.00 0.00 0.00 0.00 0.20 41.40 2.10 0.80 0.00 0.00 0.00 44.50
1950-510.00 0.00 0.00 0.20 0.00 0.00 0.20 0.00 12.90 0.00 0.00 0.00 13.30
1951-520.00 0.00 0.00 0.00 0.00 0.70 8.90 0.00 0.00 0.00 0.00 0.00 9.60
1952-530.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.60 0.00 0.60
1953-540.00 0.00 0.00 0.00 0.00 0.00 10.60 0.00 0.00 0.00 0.00 0.00 10.60
1954-550.00 0.00 0.00 0.00 0.00 1.20 1.10 1.30 0.80 0.00 0.00 0.00 4.40
1955-560.00 0.00 0.00 0.00 8.20 2.00 9.30 1.10 1.80 0.00 0.00 0.00 22.40
1956-570.00 0.00 0.00 0.00 0.00 2.60 4.20 1.40 0.00 0.00 0.00 0.00 8.20
1957-580.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1958-590.00 0.00 0.00 0.00 0.00 0.00 0.90 2.00 0.00 0.00 0.00 0.00 2.90
1959-600.00 0.00 0.00 0.00 0.00 0.00 10.30 0.00 2.60 0.00 0.00 0.00 12.90
1960-610.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1961-620.00 0.00 0.00 0.00 0.00 1.00 0.70 3.80 0.10 0.00 0.00 0.00 5.60
1962-630.00 0.00 0.00 0.00 0.00 0.00 5.00 0.00 0.00 0.00 0.00 0.00 5.00
1963-640.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1964-650.00 0.00 0.00 0.00 0.00 11.00 0.00 0.00 0.30 0.00 0.00 0.00 11.30
1965-660.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.60 0.00 0.00 0.00 0.60
1966-670.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1967-680.00 0.00 0.00 0.00 0.00 5.70 5.20 0.00 0.00 0.00 0.00 0.00 10.90
1968-690.00 0.00 0.00 0.00 0.00 15.70 18.30 0.00 0.00 0.00 0.00 0.00 34.00
1969-700.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1970-710.00 0.00 0.00 0.00 0.00 1.40 6.90 1.70 0.00 0.00 0.00 0.00 10.00
1971-720.00 0.00 0.00 0.00 0.00 4.60 0.40 0.00 0.00 0.00 0.00 0.00 5.00
1972-730.00 0.00 0.00 0.00 0.00 6.10 0.40 0.00 0.00 0.00 0.00 0.00 6.50
1973-740.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1974-750.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.00 0.00 0.10
1975-760.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1976-770.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1977-780.00 0.00 0.00 0.00 7.60 0.00 0.00 0.00 0.10 0.00 0.00 0.00 7.70
1978-790.00 0.00 0.00 0.00 3.00 2.40 1.90 1.10 0.00 0.00 0.00 0.00 8.40
1979-800.00 0.00 0.00 0.00 0.00 0.00 12.40 0.00 0.00 0.00 0.00 0.00 12.40
1980-810.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1981-820.00 0.00 0.00 0.00 0.00 2.00 2.10 0.00 0.00 0.00 0.00 0.00 4.10
1982-830.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1983-840.00 0.00 0.00 0.00 0.00 2.30 0.10 0.00 0.00 0.00 0.00 0.00 2.40
1984-850.00 0.00 0.00 0.00 0.00 2.80 0.00 4.80 0.00 0.00 0.00 0.00 7.60
1985-860.00 0.00 0.00 0.00 3.40 1.60 0.00 5.80 0.00 0.00 0.00 0.00 10.80
1986-870.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.10
1987-880.00 0.00 0.00 0.00 0.00 2.90 0.60 0.00 0.00 0.00 0.00 0.00 3.50
1988-890.00 0.00 0.00 0.00 0.00 0.00 0.90 0.30 2.00 0.00 0.00 0.00 3.20
1989-900.00 0.00 0.00 0.00 0.00 0.00 0.00 8.30 0.00 0.00 0.00 0.00 8.30
1990-910.00 0.00 0.00 0.00 0.00 1.30 0.60 0.00 0.00 0.00 0.00 0.00 1.90
1991-920.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1992-930.00 0.00 0.00 0.00 0.00 4.60 2.90 6.60 0.00 0.00 0.00 0.00 14.10
1993-940.00 0.00 0.00 0.00 0.00 0.00 0.00 2.60 0.00 0.00 0.00 0.00 2.60
1994-950.00 0.00 0.00 0.00 0.30 1.10 0.00 3.60 0.40 0.00 0.00 0.00 5.40
1995-960.00 0.00 0.00 0.00 0.00 0.00 8.20 0.20 0.20 0.00 0.00 0.00 8.60
1996-970.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1997-980.00 0.00 0.00 0.00 0.00 0.00 8.50 0.00 0.00 0.00 0.00 0.00 8.50
1998-990.00 0.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 0.00 0.00 0.00 2.00
1999-000.00 0.00 0.00 0.00 0.00 0.00 1.00 0.00 0.00 0.00 0.00 0.00 1.00
2000-010.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.10
2001-020.00 0.00 0.00 0.00 0.00 0.00 0.60 0.00 0.00 0.00 0.00 0.00 0.60
2002-030.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2003-040.00 0.00 0.00 0.00 0.60 2.30 9.40 0.00 0.00 0.00 0.00 0.00 12.30
2004-050.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2005-060.00 0.00 0.00 0.00 0.00 1.20 0.00 0.00 0.70 0.00 0.00 0.00 1.90
2006-070.00 0.00 0.00 0.00 0.00 0.00 3.50 0.00 0.00 0.00 0.00 0.00 3.50
2007-080.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2008-090.00 0.00 0.00 0.00 0.00 19.00 4.60 0.00 0.30 0.00 0.00 0.00 23.90
2009-100.00 0.00 0.00 0.00 0.00 2.50 0.00 0.00 0.00 0.00 0.00 0.00 2.50
2010-110.00 0.00 0.00 0.00 0.30 0.00 0.00 1.50 0.00 0.00 0.00 0.00 1.80
2011-120.00 0.00 0.00 0.00 0.00 0.00 2.30 0.00 0.40 0.00 0.00 0.00 2.70
2012-130.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2013-140.00 0.00 0.00 0.00 0.00 0.50 0.00 7.30 0.00 0.00 0.00 0.00 7.80
2014-150.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2015-160.00 0.00 0.00 0.00 0.00 0.10 1.30 0.00 0.00 0.00 0.00 0.00 1.40
2016-170.00 0.00 0.00 0.00 0.00 2.80 8.40 0.00 0.00 0.00 0.00 0.00 11.20
2017-180.00 0.00 0.00 0.00 0.00 1.00 0.00 6.60 0.00 0.00 0.00 0.00 7.60
2018-190.00 0.00 0.00 0.00 0.00 0.00 0.00 6.50 0.50 0.00 0.00 0.00 7.00
2019-200.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.50 0.00 0.00 0.00 0.50
2020-210.00 0.00 0.00 0.00 0.00 0.00 0.00 10.10 0.00 0.00 0.00 0.00 10.10
2021-220.00 0.00 0.00 0.00 0.00 3.90 0.00 0.50 0.00 1.90 0.00 0.00 6.30
2022-230.00 0.00 0.00 0.00 0.00 0.20 0.00 10.80 0.00 0.00 0.00 0.00 11.00
2023-240.00 0.00 0.00 0.00 0.00 0.00 1.60 0.00 0.00 0.00m-----z-----z1.60c
Period of Record Statistics
MEAN0.00 0.00 0.00 0.00 0.28 1.32 2.65 1.28 0.30 0.02 0.01 0.00 6.02
S.D.0.00 0.00 0.00 0.02 1.30 3.09 5.85 2.77 1.45 0.21 0.07 0.00 7.90
SKEW0.00 0.00 0.00 9.06 5.20 3.94 4.07 2.46 7.95 9.06 9.06 0.00 2.35
MAX0.00 0.00 0.00 0.20 8.20 19.00 41.40 13.20 12.90 1.90 0.60 0.00 44.50
MIN0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
YRS85 85 85 85 84 84 85 85 85 85 85 85 81