CHATHAM, MA

Total of Snowfall (Inches)

(191386)

File last updated on September 23, 2020
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
1972-73-----z0.00 0.00 0.00 0.00 0.00 1.00 14.00 3.40 0.00 0.00 0.00 18.40a
1973-740.00 0.00 0.00 0.00 0.00 0.00 13.30 12.10 0.00 0.00 0.00 0.00 25.40
1974-750.00 0.00 0.00 0.00 2.30 1.30 2.00 14.50 8.40 0.00 0.00 0.00 28.50
1975-760.00 0.00 0.00 0.00 0.00 1.00 25.50 8.00 3.90 0.00 0.00 0.00 38.40
1976-770.00 0.00 0.00 0.00 0.00 2.80 13.80 6.00 0.60 0.00 0.00 0.00 23.20
1977-780.00 0.00 0.00 0.00 0.00 1.00 13.80 7.00 15.20 0.00 0.00 0.00 37.00
1978-790.00 0.00 0.00 0.00 0.00 0.00 6.90 5.20 0.00 0.00 0.00 0.00 12.10
1979-800.00 0.00 0.00 0.00 0.00 0.00 1.00 7.20 1.00 0.00 0.00 0.00 9.20
1980-810.00 0.00 0.00 0.00 0.00 1.70 22.80 5.00 0.00 0.00 0.00 0.00 29.50
1981-820.00 0.00 0.00 0.00 0.00 5.00 15.70 8.30a1.50 4.60 0.00 0.00 35.10
1982-830.00 0.00 0.00 0.00 0.00a15.00 4.00 22.80 0.10 1.00 0.00 0.00 42.90
1983-840.00 0.00 0.00 0.00 0.00 5.60 3.00 0.00 15.00 0.00 0.00 0.00 23.60
1984-850.00 0.00 0.00 0.00 0.00 0.00 12.90 11.80 0.50 -----z0.00 0.00 25.20a
1985-860.00 0.00 0.00 0.00 0.00 5.00 0.00 10.50 0.00 0.00 0.00 0.00 15.50
1986-870.00 -----z-----z-----z-----z-----z19.30 31.40 5.00 0.00 0.00 0.00 55.70e
1987-880.00 -----z0.00 0.00 -----z12.00 6.40 0.00 1.30 0.00 0.00 0.00 19.70b
1988-890.00 0.00 0.00 0.00 0.00 5.60 0.30 13.10 1.50 0.00 -----z0.00 20.50a
1989-900.00 0.00 0.00 0.00 11.00 7.40 3.00 9.00a5.00 2.20 0.00 0.00 37.60
1990-910.00 0.00 0.00 0.00 0.00 0.00 7.10 6.10 1.20 0.00 0.00 0.00 14.40
1991-92-----z0.00 0.00 0.00 0.00 3.60 -----z11.30 13.30 1.00 0.00 0.00 29.20b
1992-930.00 -----z0.00 0.00 -----z1.00 1.90 38.00 5.90 0.00 0.00 0.00 46.80b
1993-940.00 0.00 0.00 0.00 0.00 8.90 12.60 37.40 6.90 0.00 0.00 0.00 65.80
1994-950.00 0.00 0.00 0.00 0.00 0.00 -----z2.20 -----z-----z0.00 0.00 2.20c
1995-960.00 0.00 0.00 0.00 2.10 2.00a24.00 31.00 4.00 4.00 0.00 0.00 67.10
1996-970.00 0.00 0.00 0.00 2.00 0.00a6.00 6.70 0.00b8.00 0.00 0.00 22.70
1997-980.00 0.00 0.00 0.00 0.00 0.00c0.00 0.00 0.00 0.00 0.00 0.00 0.00
1998-990.00 0.00 0.00 0.00 0.00 6.00 4.00a21.00 -----z0.00 0.00 0.00 31.00a
1999-000.00 0.00 0.00 0.00 0.00 0.10 13.00b2.00 2.00 0.00 0.00 0.00 17.10
2000-010.00 0.00 -----z0.00 0.00 -----z2.00 4.00 4.00 0.00 0.00 0.00 10.00b
2001-020.00 0.00 0.00 0.00 0.00 0.00 4.00 0.00 0.00 -----z0.00 0.00 4.00a
2002-030.00 0.00 0.00 0.00 0.10 4.00 11.00 28.00 8.00a1.00 0.00 0.00 52.10
2003-040.00 0.00 0.00 0.00 0.00 6.00a3.00b5.00a8.00 0.00 0.00 0.00 22.00
2004-050.00 0.00 -----z0.00 0.00a14.00d5.70h8.70a3.10 0.00 0.00 0.00 25.80b
2005-060.00 0.00 0.00 0.00 0.00a1.70b0.40 4.30b6.20 0.00 0.00 0.00 12.60
2006-070.00 0.00 0.00 0.00 0.00 0.50 4.50 3.60 0.00 0.00 0.00 0.00 8.60
2007-080.00 0.00 0.00 0.00 0.00 5.80 8.40 3.10 0.00 0.00 0.00 0.00 17.30
2008-090.00 0.00 0.00 0.00 0.00 1.80 10.70 5.00 1.00 0.00m0.00 0.00 18.50a
2009-100.00 0.00 0.00 0.00 0.00 6.90 5.20 2.30 3.50a0.00 0.00 0.00a17.90
2010-110.00 0.00 0.00 0.00 0.00 10.30 6.50 2.60 2.60 0.00 0.00 0.00 22.00
2011-120.00 0.00 0.00 0.00 0.00 1.00 9.20 0.20 0.00a0.00 0.00 0.00 10.40
2012-130.00 0.00 0.00 0.00 0.00 2.00 7.40 13.00 5.70 0.00 0.00a0.00 28.10
2013-140.00 0.00 0.00 0.00i0.10 1.90 18.00a8.10 5.90 0.00 0.00 0.00 34.00a
2014-150.00 0.00 0.00 0.00 0.00 0.00 18.50 15.70 7.50a0.00 0.00 0.00 41.70
2015-160.00 0.00 0.00 0.00 0.00 0.00 6.80 11.70 1.00 0.00 0.00 0.00 19.50
2016-170.00 0.00 0.00 0.00 0.00 0.50 11.20 8.20 8.30 0.00 0.00 0.00 28.20
2017-180.00 0.00 0.00 0.00 0.00 3.80 6.30b0.30 5.60f0.00a0.00 0.00 10.40a
2018-190.00 0.00 0.00 0.00 0.00 0.00 0.60 4.70 0.00b0.00 0.00 0.00 5.30
2019-200.00a0.00 0.00 0.00 0.30 0.80a1.80a0.00 1.10 0.00 0.00 0.00b4.00
2020-210.00 0.00 0.00g-----z-----z-----z-----z-----z-----z-----z-----z-----z0.00j
Period of Record Statistics
MEAN0.00 0.00 0.00 0.00 0.40 3.17 8.20 9.79 3.59 0.50 0.00 0.00 25.30
S.D.0.00 0.00 0.00 0.00 1.70 3.91 6.87 9.71 4.04 1.51 0.00 0.00 16.15
SKEW0.00 0.00 0.00 0.00 5.60 1.45 0.85 1.49 1.32 3.65 0.00 0.00 0.91
MAX0.00 0.00 0.00 0.00 11.00 15.00 25.50 38.00 15.20 8.00 0.00 0.00 67.10
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
YRS47 46 45 46 45 46 45 48 45 44 47 48 33