CHATHAM, MA

Average of Minimum Temperature (Degrees Fahrenheit)

(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)JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECANN
1972-----z-----z-----z-----z-----z-----z-----z59.97 57.00 44.00 38.07 33.06 46.42g
197325.48 25.57 35.39 39.93 46.52 56.37 60.45 62.81 56.27 48.97 38.47 33.61 44.15
197428.16 25.21 31.26 40.17 45.74 53.57 61.23 62.42 57.43 43.84 39.00 32.45 43.37
197530.52 26.75 29.61 36.33 47.94 54.83 61.58 61.71 55.50 49.71 43.63 30.10 44.02
197621.65 27.59 32.53a40.67 47.94 57.37 61.32 60.81 55.87 45.81 33.73 22.26 42.29
197718.03 23.43 34.52 39.10 47.94 54.17 61.19 61.65 55.53 47.77 41.47 29.32 42.84
197823.71 22.18 28.84 37.20 45.94 55.00 58.97 62.68 52.70 46.23 40.07 29.48 41.92
197926.94 17.93 33.26 38.83 49.97 54.13 60.03 59.13 55.57 46.30a43.40 32.55 43.17
198026.32 22.31 30.10 40.50 47.68 54.40 62.16 63.48 57.07 46.48 36.00 24.03 42.54
198115.87 29.46 30.52 41.07 47.00 57.30 62.90 61.03 55.80 46.03 39.60 30.19 43.06
198217.68 26.36 31.16 35.77 47.03 53.30 62.06 59.97 56.20 47.81 39.96f35.48 42.98a
198328.57a29.33a34.65 40.30 46.94 55.47 62.87 62.06 59.31a49.26 40.19d28.39 44.78
198425.97 31.83 27.52 38.33 47.97 56.03 60.10 62.97 54.03 49.16 39.53 33.94 43.95
198520.04d27.33a31.67a-----z47.03 54.23 60.00 60.52 56.83 48.55 42.93 26.77 43.26a
198625.77a25.46 30.84 40.40 -----z54.21b60.55 -----z-----z-----z-----z-----z39.54f
198726.19 22.89 31.65 39.87 46.03 55.73 59.45 -----z57.00 44.93c-----z31.77 41.55b
198823.39 26.83 31.45 39.34a47.19 53.93 61.26 64.23 55.40 44.94 39.77 27.83a42.96
198928.00 25.57 32.06 38.00 -----z57.10 60.94 60.74 56.97 47.77 37.73 18.39 42.12a
199031.29 28.11 32.23 39.10 46.06 55.33 62.03 63.65 57.07 51.06 40.23 34.37a45.04
199126.71 28.46 34.45 41.17 50.13a57.60 -----z63.16 55.80 50.23 41.28a30.28b43.57a
1992-----z26.66 29.45 36.27 45.10 55.73 59.03 -----z55.67 46.23 -----z31.68 42.87c
199327.68 22.14 30.39 39.40 48.32 56.17 62.26 60.97 57.07 46.42 39.73 30.84 43.45
199419.55 23.46 32.20a40.80 46.55 56.90 63.55 61.65 56.83a48.71 43.74c34.60a44.04
1995-----z23.70e-----z-----z45.34b55.62a62.97a63.17a56.00e52.07a38.31d26.97b47.13c
199625.59b24.96c27.79c37.93a45.10a55.77 60.10a60.69b56.80 47.63a35.72a35.69b42.81
199723.63a30.04a30.39c37.74c46.45 55.39b63.97b62.23a57.67c46.97a37.67 30.33a43.54
199830.47a32.00b34.10a40.90a48.94 54.73 62.86b61.55b57.37 48.36c39.14a34.62b45.42
199925.50a29.12c-----z39.43 49.52 58.70 65.61c62.52 58.78c45.62b40.07c33.39 46.20a
200021.21b27.74b35.70a41.19c47.89c57.36b60.83b62.61 -----z48.14b39.10a-----z44.18b
200126.75c28.40w32.86q39.07a49.07a59.62a61.43c63.80a57.62a49.41b42.17a36.39 48.53b
200231.77 29.15b33.00a-----z47.71 55.55a63.80a65.42 59.88f48.07b38.60 29.73a44.28b
200320.57a22.96 29.03a37.00a46.32 54.40 63.97 63.29 58.27 47.10a41.40 31.53a42.99
200416.13a24.89a32.00 39.20 48.58 56.03 60.29 61.97 -----z49.46c39.79a31.08e41.77a
200524.57a26.89 27.94 40.60 45.13 56.52a62.81 64.42 61.13 50.94 41.50 29.77 44.35
200632.26 26.25 30.65 41.97 49.10 58.31a64.94 64.29 58.30 48.39 45.97 35.58 46.33
200728.39 20.14 29.77 38.13 50.00 57.97 63.65 63.57a60.53 53.47a38.53 29.19 44.45
200828.03a27.52 31.74 40.83 48.10 59.77 66.19 62.74 61.93a46.59i37.63 30.39 44.99a
200920.55 25.07a31.06 39.29m48.81d54.12d61.03 64.42 57.30 46.03 44.57 28.39 43.76a
201024.23 26.43 36.43a42.50 50.32 58.76a64.87 62.65 59.63 49.16 39.67 27.74 45.20
201123.48 23.89 31.00 40.83 48.03 56.67 65.16 63.23 59.63 51.52 43.73 34.35 45.13
201228.61 29.86 36.42 42.67 50.58 58.80o65.71 64.77a58.83 51.00 39.73 35.35 45.78a
201325.47a26.43 32.13 39.30 48.38b57.87 65.94 62.45 56.30 46.81j36.80 29.65 43.70a
201421.71 24.50 25.65 38.43 47.42 55.73 60.58 59.87 59.57 51.58 37.80 36.23 43.26
201522.87 16.75 27.55b39.63 50.74 55.10 62.65 64.81 62.03 48.94 43.83 41.65 44.71
201628.39 27.79 36.16 39.73 49.03 57.00 63.71 66.48 61.03 51.35 42.03 31.42 46.18
201731.03 30.11 28.39 42.57 48.19 56.93 62.19 62.16 59.23 55.32 39.37 27.87 45.28
201825.03b30.96 32.30h38.25b49.29 55.93 61.73a65.19 60.63 47.52 37.07 30.45 45.64a
201924.42 24.61 29.68 40.33 46.77 55.77 64.86b63.74 58.20 50.74 36.80 30.57a43.87
202030.19 30.55 35.19 38.20 46.84 57.18b63.97 65.00 59.39g-----z-----z-----z45.89d
Period of Record Statistics
MEAN25.18 26.11 31.53 39.52 47.75 56.08 62.33 62.67 57.58 48.42 39.90 31.08 43.97
S.D.4.13 3.33 2.62 1.66 1.53 1.58 1.94 1.65 2.06 2.47 2.59 3.97 1.14
SKEW-0.41 -0.57 0.11 -0.23 0.10 0.39 0.26 -0.01 0.31 0.42 0.20 -0.49 0.29
MAX32.26 32.00 36.43 42.67 50.74 59.77 66.19 66.48 62.03 55.32 45.97 41.65 46.33
MIN15.87 16.75 25.65 35.77 45.10 53.30 58.97 59.13 52.70 43.84 33.73 18.39 41.92
YRS46 47 44 44 46 47 47 46 44 45 44 46 29