BOULDER, CO

Total of Snowfall (Inches)

(050848)

File last updated on April 23, 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
1893-94-----z-----z-----z-----z9.00 -----z2.00 10.40x1.40 -----z-----z-----z12.40i
1894-95-----z-----z-----z-----z-----z12.30 -----z7.60 17.30 0.00 -----z-----z37.20h
1895-96-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1896-97-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00l
1897-98-----z-----z-----z-----z5.50 9.10y7.00 4.30x7.60v8.30 -----z-----z20.80i
1898-99-----z-----z1.00 5.00 23.50 18.00 13.10y15.30 13.00x8.00 0.00 0.00 70.80d
1899-000.00 -----z-----z2.00 0.00 12.80 -----z14.80 6.90y20.00 0.00 -----z49.60e
1900-01-----z-----z-----z0.00 -----z9.30 7.50 5.30t18.60v26.00 -----z-----z42.80h
1901-02-----z-----z-----z4.00 0.00 15.00 7.30 6.50 9.50 3.00 -----z0.00 45.30d
1902-03-----z-----z-----z0.50 8.00 17.00 2.00 18.20t13.50 18.00 4.00 -----z63.00e
1903-04-----z-----z1.00 10.50 -----z2.50 2.00 3.00 16.00 1.00 -----z0.00 36.00d
1904-050.00 0.00 -----z-----z-----z8.50 13.50 8.20t7.50 21.50 3.00 -----z54.00e
1905-06-----z-----z-----z13.00 0.00 0.00 -----z-----z24.00 8.00 -----z-----z45.00g
1906-07-----z0.00 0.00 19.00 18.00 0.00 6.20 7.10x2.50 28.50 15.00 0.00 89.20b
1907-080.00 0.00 1.00 0.00 -----z-----z10.00 1.50 3.80 5.50 8.00 0.00 29.80b
1908-090.00 0.00 8.00 15.30 31.00 15.00 -----z19.30 26.50 27.50 0.00 0.00 142.60a
1909-100.00 0.00 0.00 1.00 16.50 31.00 4.00 20.80 0.00 0.20 7.00 0.00 80.50
1910-11-----z-----z0.00 0.00 0.50 4.50 11.50 27.10 0.00 12.00 -----z-----z55.60d
1911-12-----z0.00 0.00 8.00 10.00 -----z-----z-----z22.00x0.00 7.00 -----z25.00f
1912-130.00 0.00 0.00 3.00 -----z2.40 -----z9.80x21.10 15.40 -----z-----z41.90e
1913-14-----z-----z0.00 9.00 0.00 53.00x0.00 -----z25.40x14.80 0.00 0.00 23.80e
1914-150.00 0.00 0.00 3.00 0.10 5.30 8.70y18.50 13.50y0.00 14.50 0.00 41.40b
1915-160.00 0.00 0.00 0.00 3.90 19.50y11.20 -----z12.80 14.00 5.00 -----z46.90c
1916-17-----z0.00 0.00 10.10 17.50x13.60 5.90 6.30 22.30w13.00 14.80 0.00 63.70c
1917-18-----z-----z-----z7.50 -----z5.30 -----z14.50 -----z0.00 -----z-----z27.30h
1918-190.00 -----z-----z2.00 14.00 18.00w0.00 7.00v10.00 4.50 -----z-----z30.50f
1919-20-----z-----z-----z-----z-----z0.50 12.50 14.40 6.10 40.30 0.00 0.00 73.80e
1920-210.00 0.00 -----z-----z-----z14.70y-----z4.00w-----z-----z-----z-----z0.00j
1921-22-----z-----z-----z-----z-----z-----z5.90y7.60w-----z-----z-----z0.00 0.00k
1922-230.00 0.00 0.00 1.10 14.00 -----z0.00 24.40 24.80x2.50 0.20 -----z42.20c
1923-24-----z-----z0.00 -----z2.90 7.40 7.90 2.80 17.50a16.50 0.00 0.00 55.00c
1924-250.00 0.00 0.00 0.00 1.00 14.20 2.00 -----z4.00 0.00 0.00 0.00 21.20a
1925-260.00 0.00 0.00 17.00 8.00 15.00 8.50 5.80 22.00 3.00 0.00 0.00 79.30
1926-270.00 -----z0.00 3.00 -----z20.80 3.90 3.90 -----z-----z-----z-----z31.60f
1927-28-----z0.00 -----z0.00 8.60 8.20 0.80 16.10t16.70 2.40 0.00 0.00 36.70c
1928-290.00 -----z0.00 0.00 19.70 0.50 4.70 12.10 26.20 2.00 -----z-----z65.20c
1929-300.00 0.00 0.00 14.90 25.90 9.10 8.90 7.30 7.40v0.00 5.50 0.00 71.60a
1930-310.00 0.00 0.00 0.00 13.30 9.80a0.00 16.90 20.60a10.60 26.70 0.00 97.90
1931-320.00 0.00 0.00 0.00 13.40 0.40 4.70 14.10 14.40 5.30 0.00 0.00 52.30
1932-330.00 0.00 0.00 6.30 5.10 8.40 0.00 5.60 9.10 37.70 3.00 0.00 75.20
1933-340.00 0.00 0.00 0.00 -----z8.00 1.00 19.80t15.50 13.30 0.00 0.00 37.80b
1934-350.00 0.00 3.00 0.00 8.40 3.00 1.70 7.70y1.60 16.10 1.00 0.00 34.80a
1935-360.00 0.00 3.00 2.30 7.70 0.00 5.90 7.70 24.20 -----z0.00 0.00 50.80a
1936-370.00 0.00 8.00 6.00 -----z5.60 7.90 5.80 8.30 19.80 0.00 0.00 61.40a
1937-380.00 0.00 0.00 2.50 7.70 15.70 8.70x11.30 21.70w9.00 0.00 0.00 46.20b
1938-390.00 0.00 0.00 2.70 24.90 15.30 8.00 13.30 9.40 14.10 0.00 0.00 87.70
1939-400.00 0.00 0.00 6.50 0.00 4.30 24.20w15.90 14.60 8.00 0.00 0.00 49.30a
1940-410.00 0.00 0.00 0.00 7.00 6.50 11.50 3.30 29.20 15.00 0.00 0.00 72.50
1941-420.00 0.00 0.00 3.00 6.10 12.70 13.30 20.90 11.70 10.00 1.50 0.00 79.20
1942-430.00 0.00 1.00 23.00 5.20 7.80v2.00 3.50 17.90 0.00 9.50 0.00 62.10a
1943-440.00 0.00 0.00 0.00 9.50 6.60 13.00 5.40 41.10 27.60 2.10 0.00 105.30
1944-450.00 0.00 0.00 0.00 4.50 9.60 20.30 9.00 10.90 32.50 0.50 0.00 87.30
1945-460.00 0.00 2.00 5.10 6.50 4.00 21.20 5.50 1.00 0.00 7.50 0.00 52.80
1946-470.00 0.00 1.00 7.30 46.70 7.00 17.00 19.30 23.70 9.00 -----z1.00 132.00a
1947-48-----z0.00 0.00 8.00 16.70v13.40 35.00 9.40u27.50 2.00 0.00 0.00 85.90c
1948-490.00 0.00 0.00 12.00 13.10 8.10 28.20 2.30 18.60 9.10 0.00 0.00 91.40
1949-500.00 0.00 0.00 7.90 0.00 4.40 11.80 3.70 4.20 9.00 13.70 0.00 54.70
1950-510.00 0.00 0.00 0.00 20.40 3.20 12.80a9.20 30.70 17.90 0.00 2.20 96.40
1951-520.00 0.00 1.50 3.90 17.80 18.00 1.00 5.00a26.80 9.30 0.00 0.00 83.30
1952-530.00 0.00 0.00 2.50 26.70 3.50 5.30 11.80 11.80 24.40 3.00 0.00 89.00
1953-540.00 0.00 0.00 0.00 10.30 15.70 6.70 3.40 14.20 6.80 6.50 0.00 63.60
1954-550.00 0.00 0.00 4.20c4.00 7.50 6.50 21.30 26.00 2.50 0.00b0.00 72.00
1955-560.00 0.00 0.00 2.00 14.70 9.20 5.10 25.30 18.80 9.60 0.00 0.00 84.70
1956-570.00 0.00 0.00 2.00 20.50 8.50 15.20 4.00 5.00 44.00 4.00 0.00 103.20
1957-580.00 0.00 0.00 1.60 4.60 1.00 11.90 6.40 28.80 16.10 0.00 0.00 70.40
1958-590.00 0.00 0.20 3.50 12.30 12.20 16.50 15.90 19.90 32.00 0.00 0.00 112.50
1959-600.00 0.00 10.90 14.50 13.60 0.50 10.40 21.40 10.50 7.70 1.50 0.00 91.00
1960-610.00 0.00 0.00 4.50 5.50 18.10 9.70 10.60a30.30 6.40 0.00 0.00 85.10
1961-620.00 0.00 0.00 10.70 13.70 8.60 25.10 12.50 6.60 4.30 0.00 0.00 81.50
1962-630.00 0.00 0.00 0.00 6.90 1.50 15.40 5.60 28.60 1.50 0.00 0.00 59.50
1963-640.00 0.00 0.00 0.70 4.50 11.20 7.50 12.00 22.10 16.00 0.00 0.00 74.00
1964-650.00 0.00 0.00 0.00 11.00 12.50 12.00 25.60 31.70 6.10 0.00 0.00 98.90
1965-660.00 0.00 4.20 0.00 2.50 10.20 7.30 23.90 3.80 9.00 2.60 0.00 63.50
1966-670.00 0.00 0.00 6.10 8.40 5.20 13.30 7.30 9.80 0.00 6.30 0.00 56.40
1967-680.00 0.00 0.00 3.10 13.80 31.40 0.80 19.90 13.00 15.70 0.00 0.00 97.70
1968-690.00 0.00 0.00 0.50 7.50 9.50 6.60 5.30 17.50 0.00 0.00 0.00 46.90
1969-700.00 0.00 0.00 49.30 10.80 8.20 2.00 0.00 56.70 7.50 0.00 0.00 134.50
1970-710.00 0.00 1.50 6.20 8.00 4.00 8.00 18.70 11.50 9.30 0.00 0.00 67.20
1971-720.00 0.00 21.00 10.20 3.20 11.70 13.50 6.10 9.90 0.70 0.00 0.00 76.30
1972-730.00 0.00 0.00 10.40 26.80 19.50 18.50 2.00 14.70 29.80 6.60 0.00 128.30
1973-740.00 0.00 0.00 0.00 21.10 16.60 8.00 8.40 18.30 11.40 0.00 0.00 83.80
1974-750.00 0.00 2.70 1.20 8.40 7.90 6.60 12.30 16.20 28.70 0.00 0.00 84.00
1975-760.00 0.00 0.00 5.80 11.30 10.80 8.30 6.20 16.50 0.00 0.00 0.00 58.90
1976-770.00 0.00 0.00 2.10 1.00 7.00 3.80 7.40 5.90 12.60 0.00 0.00 39.80
1977-780.00 0.00 0.00 0.00 4.60 2.50 19.60 10.50 9.90 5.90 23.00 0.00 76.00
1978-790.00 0.00 0.00 0.00 2.50 -----z13.00 2.00 14.50 10.20 -----z-----z42.20c
1979-800.00 0.00 -----z1.00 39.30 23.50 14.30 13.80 18.00 5.50 0.00 0.00 115.40a
1980-81-----z0.00 0.00 2.00a9.50 0.50 5.00 7.00 16.00 0.00a0.00 0.00 40.00a
1981-820.00 0.00 0.00 3.00 2.00 7.30 1.00 4.00a3.50 0.00 0.00 0.00 20.80
1982-830.00 0.00 0.00 1.50 -----z23.50 0.20 2.30 22.50 17.50 0.00 0.00 67.50a
1983-840.00 0.00 0.00 0.00 30.10 11.00b6.40 8.90a19.20 12.70 0.00 0.00 88.30
1984-850.00 0.00 4.20 11.00 0.00 4.80 16.30 14.60 20.40 0.90 0.00 0.00 72.20
1985-860.00 0.00 11.00a6.00 22.80 16.00 2.00 17.80 3.00 13.50 0.00 0.00 92.10
1986-870.00 0.00 0.00 7.00 20.30 13.00 21.40 23.70 23.00 16.30 0.00 0.00 124.70
1987-880.00 0.00 0.00 0.00 13.50 27.50 6.50 16.70 24.90 4.70 1.00 0.00 94.80
1988-890.00 0.00 0.00 0.00 5.70 31.50 14.20 14.80 10.50 15.80 0.00 0.00 92.50
1989-900.00 -----z-----z-----z-----z-----z-----z-----z-----z7.60 0.10 0.00 7.70h
1990-910.00 0.00 0.00 6.10 17.10 12.70 17.00 2.80 2.00 19.10 0.40 0.00 77.20
1991-920.00 0.00 0.00 13.60 28.90 0.20 10.90 0.00 19.70b0.00 0.00 0.00 73.30
1992-930.00 0.00 0.00 0.00 44.70 18.80 5.80 9.30 11.90 4.70 0.00 0.00 95.20
1993-940.00 -----z1.40 10.50 27.00 9.00 11.50 15.40 14.90 22.80 0.00 0.00 112.50a
1994-950.00 0.00 0.40 0.00 23.70 10.30 12.00 16.30 16.40 24.10 0.80 0.00 104.00
1995-960.00 0.00 8.60 3.10 17.80 3.40 24.40a5.90 17.70 7.60 0.00 0.00 88.50
1996-970.00 0.00 6.10 0.10 16.60 6.10 19.00 28.80 14.10 38.60 0.00 0.00 129.40
1997-980.00 0.00 0.00 30.10 18.20 9.90 10.40 1.70 42.90 19.40 0.00 0.00 132.60
1998-990.00 0.00 0.00 0.00 9.50 17.80 9.70 0.60 6.60 37.20 0.00 0.00 81.40
1999-000.00 0.00 1.60 6.10 10.50 8.80 4.00a5.40 26.60 8.90 0.00 0.00 71.90
2000-010.00 0.00 6.50 0.90 10.90 8.50a10.30 13.10 16.60 10.50 6.50 0.00 83.80
2001-020.00 0.00 0.00 0.30 7.30 4.70 18.50 8.30 22.60 0.10 1.60 0.00 63.40
2002-030.00 0.00 0.00 16.10 13.00 0.50 0.50 22.80 34.70 6.20 5.20 0.00 99.00
2003-040.00 0.00 0.00 0.40 7.50 9.90 12.00 18.00 7.90 14.90 0.00 0.00 70.60
2004-050.00 0.00 0.00 0.00 17.60 6.70 15.90 3.30 11.20 21.80 0.20 0.00 76.70
2005-060.00 0.00 0.00 0.00 1.90 6.30 5.50 11.40 23.30 2.90 0.10 0.00 51.40
2006-070.00 0.00 0.00 15.20 12.00 45.50 27.50 15.30 4.50 2.20 0.00 0.00 122.20
2007-080.00 0.00 0.00 0.10 5.90 30.00 10.30 10.40 17.60 7.90 0.70 0.00 82.90
2008-090.00 0.00 0.00 0.20 1.30 20.90 13.00 3.90 21.40 20.40 0.00 0.00 81.10
2009-100.00 0.00 0.00 30.10 8.90 27.80 4.60 23.00 28.70 5.80 5.60 0.00 134.50
2010-110.00 0.00 0.00 0.00 2.00 9.50 18.20 13.20 0.70 3.50 0.20 0.00 47.30
2011-120.00 0.00 0.00 11.50 8.60 33.10 7.80 32.10 0.00 1.60 0.00 0.00 94.70
2012-130.00 0.00 0.00 7.90 0.80 11.70 3.70 18.50 22.80 47.60 12.30 0.00 125.30
2013-140.00 0.00 0.00 5.40 6.30 9.00 27.20 11.70 11.20 12.20 6.80 0.00 89.80
2014-150.00a0.00 0.50 0.00 16.90 19.80 6.00 54.60 8.00 7.40 3.90 0.00 117.10
2015-160.00 0.00 0.00 0.00 11.50 17.40 4.10 21.80 32.50 21.40 1.00 0.00 109.70
2016-170.00 0.00 0.00 0.00 4.40 13.00 18.70 9.90 0.00 19.40 6.10 0.00 71.50
2017-180.00 0.00 0.00 8.00 4.10 10.20 8.80 18.50 6.80 6.00 0.00 0.00 62.40
2018-190.00 0.00 0.00 10.10 16.40 5.70 14.50 14.60 16.20 10.20 7.40 0.00 95.10
2019-200.00 0.00 0.00 26.40 29.50 3.40 0.00 39.10 16.30 37.30 0.00 0.00 152.00
2020-210.00 0.00 5.70 12.50 7.50 5.80 6.20 19.60 27.80 18.00 0.20 0.00 103.30
2021-220.00 0.00 0.00 0.00 0.70 5.10 25.10 32.80 16.70 0.00 8.30 0.00 88.70
2022-230.00 0.00 0.00 0.10 24.60 15.50 9.30 17.30 4.30 9.90 0.00 0.00 81.00
2023-240.00 0.00 0.00 6.80 7.30 10.30 10.80 19.20 29.60 9.10h-----z-----z84.00c
Period of Record Statistics
MEAN0.00 0.00 1.04 5.33 11.60 10.80 9.76 12.58 15.99 11.98 2.45 0.03 85.46
S.D.0.00 0.00 2.93 7.53 9.60 8.19 7.15 8.99 10.15 10.80 4.73 0.23 23.88
SKEW0.00 0.00 4.10 2.67 1.25 1.36 0.91 1.35 0.76 1.14 2.72 8.44 0.30
MAX0.00 0.00 21.00 49.30 46.70 45.50 35.00 54.60 56.70 47.60 26.70 2.20 152.00
MIN0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.80
YRS108 108 112 120 112 116 115 109 113 123 111 109 80