Climate Chatham - Massachusetts

	JanJa	FebFe	MarMa	AprAp	MayMa	JunJu
Average high in ºF Av. high Hi	38	38	43	51	59	68
Average low in ºF Av. low Lo	24	25	31	40	48	57
Av. precipitation in inch Av. precip. Pre.	3.83	4.24	4.85	4.14	3.81	3.41
Av. snowfall in inch Snowfall Sn	8	12	3	1	0	0

	JulJu	AugAu	SepSe	OctOc	NovNo	DecDe
Average high in ºF Av. high Hi	75	75	69	60	52	43
Average low in ºF Av. low Lo	63	63	58	48	40	30
Av. precipitation in inch Av. precip. Pre.	3.28	3.20	3.83	4.04	4.03	4.38
Av. snowfall in inch Snowfall Sn	0	0	0	0	1	5

Chatham Climate Graph - Massachusetts Climate Chart

Day	High ºF	Low ºF	Prec/mo inch	Prec/yr inch	Snow/mo inch	Snow/yr inch
1 Jan	38.9	25.7	0.12	0.12	0.20	0.50
2 Jan	38.7	25.5	0.24	0.24	0.39	1.00
3 Jan	38.6	25.3	0.39	0.39	0.71	1.80
4 Jan	38.4	25.2	0.51	0.51	0.91	2.30
5 Jan	38.3	25.0	0.63	0.63	1.10	2.80
6 Jan	38.2	24.8	0.75	0.75	1.30	3.30
7 Jan	38.0	24.7	0.87	0.87	1.61	4.10
8 Jan	37.9	24.5	0.98	0.98	1.81	4.60
9 Jan	37.8	24.4	1.10	1.10	2.01	5.10
10 Jan	37.7	24.3	1.22	1.22	2.20	5.60
11 Jan	37.6	24.2	1.38	1.38	2.40	6.10
12 Jan	37.6	24.1	1.50	1.50	2.72	6.90
13 Jan	37.5	24.0	1.61	1.61	2.91	7.40
14 Jan	37.4	23.9	1.73	1.73	3.11	7.90
15 Jan	37.4	23.8	1.85	1.85	3.39	8.60
16 Jan	37.3	23.8	2.01	2.01	3.58	9.10
17 Jan	37.3	23.7	2.13	2.13	3.82	9.70
18 Jan	37.3	23.7	2.20	2.20	4.02	10.20
19 Jan	37.2	23.6	2.32	2.32	4.29	10.90
20 Jan	37.2	23.6	2.48	2.48	4.49	11.40
21 Jan	37.2	23.6	2.60	2.60	4.80	12.20
22 Jan	37.2	23.5	2.72	2.72	5.12	13.00
23 Jan	37.2	23.5	2.83	2.83	5.31	13.50
24 Jan	37.2	23.5	2.95	2.95	5.59	14.20
25 Jan	37.2	23.5	3.07	3.07	5.79	14.70
26 Jan	37.2	23.5	3.23	3.23	6.10	15.50
27 Jan	37.2	23.5	3.35	3.35	6.42	16.30
28 Jan	37.2	23.6	3.46	3.46	6.69	17.00
29 Jan	37.2	23.6	3.58	3.58	7.09	18.00
30 Jan	37.3	23.6	3.70	3.70	7.40	18.80
31 Jan	37.3	23.7	3.82	3.82	7.72	19.60

Day	High ºF	Low ºF	Precip. inch	Snow inch	Snow d. inch
01 Dec	36.0	28.9	0.00	0.00	0.0
02 Dec	43.0	-	0.75	0.00	0.0
03 Dec	44.1	32.0	0.82	0.12	0.0
04 Dec	35.1	28.0	0.21	-	0.0
05 Dec	39.0	30.9	0.00	0.00	0.0
06 Dec	44.1	28.9	0.00	0.00	0.0
07 Dec	46.0	28.9	0.01	0.00	0.0
08 Dec	34.0	24.1	0.00	0.00	0.0
09 Dec	45.0	24.1	0.00	0.00	0.0
10 Dec	55.0	45.0	1.80	0.00	0.0
11 Dec	51.1	33.1	0.24	0.00	0.0
12 Dec	33.1	26.1	0.19	0.59	1.0
13 Dec	37.9	25.0	0.00	0.00	1.0
14 Dec	54.0	37.9	0.50	0.00	0.0
15 Dec	57.0	42.1	0.72	0.00	0.0
16 Dec	46.9	30.0	0.00	0.00	0.0
17 Dec	34.0	28.9	0.08	0.12	0.0
18 Dec	43.0	33.1	0.65	0.00	0.0
19 Dec	37.0	15.1	0.00	0.00	0.0
20 Dec	24.1	16.0	0.00	0.00	0.0
21 Dec	30.0	21.0	0.00	0.00	0.0
22 Dec	37.9	28.9	0.00	0.00	0.0
23 Dec	42.1	35.1	0.00	0.00	0.0
24 Dec	45.0	34.0	0.00	0.00	0.0
25 Dec	42.1	32.0	0.00	0.00	0.0
26 Dec	42.1	34.0	0.00	0.00	0.0
27 Dec	42.1	33.1	0.00	0.00	0.0

	Dec 19	Normal
Average high temperature Av. high temp.	41.5 ºF	43 ºF
Average low temperature Av. low temp.	29.9 ºF	30 ºF
Total precipitation Total precip.	5.97 inch	4.38 inch
Total snowfall Total snowfall	0.83 inch	5 inch

Highest max temperature Highest max temp.	57.0 ºF	-
Lowest max temperature Lowest max temp.	24.1 ºF	-
Highest min temperature Highest min temp.	45.0 ºF	-
Lowest min temperature Lowest min temp.	15.1 ºF	-

Past weather December 2019 incomplete - Missing data

Station Data

Monthly averages Chatham
Longitude: -69.9897, Latitude: 41.6883
Average weather Chatham, MA - 2633

Monthly: 1981-2010 normals
History: 2007-2019

Abbreviations

Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...