HILLSBORO, OR

Total of Snowfall (Inches)

(353908)

File last updated on March 28, 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
1929-30-----z-----z-----z-----z-----z0.00 24.20x0.00 0.00 0.00 0.00 0.00 0.00f
1930-31-----z0.00 0.00 0.00 -----z0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00b
1931-320.00 -----z0.00 0.00 0.00 0.00 6.50 4.00 0.00 0.00 0.00 0.00 10.50a
1932-330.00 0.00 0.00 0.00 0.00 2.50 -----z2.10 0.00 0.00 0.00 0.00 4.60a
1933-340.00 -----z0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a
1934-350.00 0.00 0.00 0.00 0.00 0.00 8.00 0.00 0.50 0.00 0.00 0.00 8.50
1935-360.00 0.00 0.00 0.00 0.00 0.00 0.00 5.30 -----z2.50 0.00 0.00 7.80a
1936-370.00 0.00 0.00 0.00 0.00 0.00 19.00 10.00 0.00 0.00 0.00 0.00 29.00
1937-380.00 0.00 0.00 0.00 0.00 2.30 0.50 0.50 -----z0.00 0.00 0.00 3.30a
1938-390.00 0.00 0.00 0.00 0.10 0.00 0.00 7.00 0.00 0.00 0.00 0.00 7.10
1939-400.00 0.00 -----z0.00 0.00 0.00 2.20 0.00 0.00 0.00 0.00 0.00 2.20a
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 1.00 2.00 0.00 0.00 0.00 0.00 0.00 3.00
1942-430.00 0.00 0.00 0.00 0.00 2.50 17.90 0.00 0.00 0.00 0.00 0.00 20.40
1943-440.00 0.00 0.00 0.00 0.00 0.00 0.70 0.00 0.00 0.00 0.00 0.00 0.70
1944-450.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1945-460.00 0.00 0.00 0.00 0.00 0.00 1.00 0.00 1.50 0.00 0.00 0.00 2.50
1946-470.00 0.00 0.00 0.00 0.00 0.00 4.70 0.00 0.00 -----z0.00 0.00 4.70a
1947-480.00 0.00 0.00 0.00 0.00 -----z0.00 1.00 0.00 0.00 0.00 0.00 1.00a
1948-490.00a0.00 0.00 0.00 0.00 0.20 14.50 7.30 0.00 0.00 0.00 0.00a22.00
1949-500.00 0.00 0.00 0.00 0.00 0.00 42.40 1.70 0.00 0.00 0.00a0.00 44.10
1950-510.00 0.00 0.00a0.00a0.00 0.00 0.00a0.00 2.50e0.00 0.00 0.00 2.50
1951-520.00 0.00 0.00 0.00 0.00 0.00 5.50 0.30 0.00 0.00a0.00 0.00 5.80
1952-530.00 0.00 0.00 0.00 0.00 0.00 0.00 1.50 0.00 0.00 0.00 0.00 1.50
1953-540.00 0.00 0.00 0.00 0.00 0.00 13.50 0.00 0.00 0.00 0.00 0.00 13.50
1954-550.00 0.00 0.00 0.00 0.00 0.00 1.20 0.00 0.00 0.00 0.00 0.00 1.20
1955-560.00 0.00 0.00 0.00 6.60 3.50 8.00 0.00 1.50 0.00 0.00 0.00 19.60
1956-570.00 0.00 0.00 0.00 0.00 0.00b8.30 0.00a0.00 0.00 0.00 0.00 8.30
1957-580.00 0.00 0.00a0.00 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 6.00 1.50 0.00 0.00 0.00 0.00 7.50
1959-600.00 0.00 0.00 0.00 0.00 0.00 9.10 0.00 5.00 0.00 0.00 0.00 14.10
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 2.80 0.50 2.50 1.00 0.00 0.00 0.00 6.80
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 -----z0.00 0.00 0.00 0.00 0.00 0.00 0.00a
1965-660.00 0.00 0.00 0.00 0.00 -----z-----z0.00 0.00 0.00 0.00 0.00 0.00b
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 1.00 7.00 0.00 0.00 0.00 0.00 0.00 8.00
1968-690.00 0.00 0.00 0.00 0.00 13.10 13.50 0.00 0.00 0.00 0.00 0.00 26.60
1969-700.00 0.00 0.00 0.00 0.00 0.00 0.30 0.00 2.10 0.00 0.00 0.00 2.40
1970-710.00 0.00 0.00 0.00 0.00 0.00 9.00 5.00 0.00 0.00 0.00 0.00 14.00
1971-720.00 0.00 0.00 0.00 0.00 4.30 0.30 0.00 1.00 0.00 0.00 0.00 5.60
1972-730.00 0.00 0.00 0.00 0.00 7.80 0.30 0.00 0.00 0.00 0.00 0.00 8.10
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 1.00a1.50 0.00 0.00 0.00 0.00 2.50
1975-760.00 0.00 0.00 0.00 1.30 1.00 0.00 1.00 0.50 0.00 0.00 0.00 3.80
1976-770.00 0.00 0.00 0.00 0.00 0.00 2.00 0.00 0.00 0.00 0.00 0.00 2.00
1977-780.00 0.00 0.00 0.00 4.80 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.80
1978-790.00 0.00 0.00 0.00 2.00 4.60 4.10 0.60 0.00 0.00 0.00 0.00 11.30
1979-800.00 0.00 0.00 0.00 0.00 0.00 3.40 1.80 0.20 0.00 0.00 0.00 5.40
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 0.00 3.00a0.60 0.00d0.00 0.00 0.00 3.60
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 0.00f0.00 0.00 0.00 0.00 0.00 0.00 0.00a
1984-850.00 0.00 0.00 0.00 0.00 1.80 0.00 -----z0.00 0.00 0.00 0.00 1.80a
1985-860.00 0.00 0.00 0.00 0.00a3.50a0.00 1.30 0.00 0.00 0.00 0.00 4.80
1986-870.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1987-880.00 0.00 0.00 0.00 0.00 0.00a0.00 0.00 0.00 0.00 0.00 0.00 0.00
1988-890.00 0.00 0.00 0.00 0.00 0.00 0.00 4.00 0.40 0.00 0.00 0.00 4.40
1989-900.00 0.00 0.00 0.00 0.00 0.00 0.00 3.50a0.00 0.00 0.00 0.00 3.50
1990-910.00 0.00 0.00 0.00 0.00 2.90 0.00 0.00 0.00 0.00 0.00 0.00 2.90
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 1.00 2.90a3.30b0.00 0.00 0.00 0.00 7.20
1993-940.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
1994-950.00 0.00 0.00 0.00 0.00 0.00 0.00 -----z0.00 0.00 0.00 0.00 0.00a
1995-960.00 0.00 0.00 0.00 0.00 0.00 -----z0.00 0.00 0.00 0.00 0.00 0.00a
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 1.50 0.00 0.00 0.00 0.00 0.00 1.50
1998-990.00 0.00 0.00 0.00 0.00 0.00b0.00 0.00 0.00 0.00 0.00 0.00 0.00
1999-000.00 -----z-----z0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -----z0.00c
2000-01-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00 0.00 0.00j
2001-020.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00a0.00 0.00a0.00
2002-030.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -----z0.00a
2003-04-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
Period of Record Statistics
MEAN0.00 0.00 0.00 0.00 0.21 0.81 3.26 0.95 0.23 0.03 0.00 0.00 6.28
S.D.0.00 0.00 0.00 0.00 0.99 2.08 6.59 1.98 0.75 0.29 0.00 0.00 8.68
SKEW0.00 0.00 0.00 0.00 5.33 3.88 3.63 2.62 4.51 8.31 0.00 0.00 2.28
MAX0.00 0.00 0.00 0.00 6.60 13.10 42.40 10.00 5.00 2.50 0.00 0.00 44.10
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
YRS71 69 70 72 71 69 69 71 71 72 74 72 55