Weather in Chatham in December

General weather information about Chatham

Average annual temperature is 6.9 °C

Absolute maximum temperature: 33.7 °C

Absolute minimum temperature: -21.6 °C

Number of sunny days: 144 days

Number of rainy days: 148 days

Number of snow days: 73 days

Look at detailed online map of Chatham

* Weather data for Chatham United States is based on climate observations for 2026 year

Chatham air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	2.7	7.8	7.1	25.7	32.0	33.7	31.5	30.0	33.4	27.3	15.4	9.6
Average daytime temperature (°C)	-2.1	-1.4	0.9	9.9	19.0	23.4	24.1	23.2	21.8	12.8	5.4	3.0
Average temperature (°C)	-4.9	-5.9	-3.2	3.9	11.7	16.8	18.1	17.9	16.4	9.1	1.3	0.1
Average night temperature (°C)	-7.5	-9.5	-6.5	-0.2	6.2	11.4	13.7	14.0	12.6	6.7	-1.7	-2.1
Absolute minimum temperature (°C)	-21.6	-20.4	-13.0	-9.1	-2.0	4.6	8.7	9.3	6.2	-5.9	-8.3	-8.5

Chatham monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	8.0
Daylight mean duration (h)	9.1	10.3	11.9	13.6	15.0	15.7	15.4	14.1	12.6	10.9	9.4	8.7
Daylight minimum duration (h)	8.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	8.0	8.0
Sunshine mean duration (h)	2.3	5.8	6.4	7.3	10.8	11.1	11.9	11.2	8.7	5.6	4.9	2.6
Precipitation (mm)	77	59	49	119	131	87	96	83	61	107	36	57
Sunny days	9	8	11	8	20	16	7	13	16	10	12	14
Rainy days	4	3	4	13	11	14	24	18	14	20	12	11
Snow days	18	17	16	9	0	0	0	0	0	1	6	6

Chatham - weather forecast by months

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Best time to visit Chatham:

The best time to visit Chatham during the most sunny months:

May — 10.8(h)
June — 11.1(h)
July — 11.9(h)
August — 11.2(h)

Months with the longest average daylight duration in Chatham:

June — 15.7(h)
July — 15.4(h)

The largest precipitation sum in Chatham is at

April — 119(mm)

May — 131(mm)

October — 107(mm)

Weather forecast in the closest to Chatham admin centers