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Natick, Massachusetts climate

Cfa Humid subtropical

Natick has a strongly seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 85°F, while the coldest is January averaging around 19°F at night. Precipitation is fairly even year-round, totalling about 49 inches.

☀️ Summers

Warm

Highs near 85°F in July.

About 18 days a year above 90 °F

❄️ Winters

Very cold

Lows near 19°F in January.

About 109 freezing nights a year

🌧️ Rain

Wet

About 49 in of rain a year.

Wettest in December

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

+0.8 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Natick climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	37	40	47	59	69	79	85	83	76	64	53	42
Avg temp (°F)	28	30	38	49	59	68	74	73	65	53	43	34
Avg low (°F)	19	21	28	38	48	58	64	63	55	43	34	26
Precipitation (in)	3.9	3.6	4.5	4.3	3.6	4.2	3.5	3.7	4.0	5.0	4.0	5.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	37	40	47	59	69	79
Avg temp (°F)	28	30	38	49	59	68
Avg low (°F)	19	21	28	38	48	58
Precipitation (in)	3.9	3.6	4.5	4.3	3.6	4.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	85	83	76	64	53	42
Avg temp (°F)	74	73	65	53	43	34
Avg low (°F)	64	63	55	43	34	26
Precipitation (in)	3.5	3.7	4.0	5.0	4.0	5.1

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	8	10	10	11	10	9	8	9	10	9	10
Days with high ≥ 90°F (days)	—	—	—	0.2	1	3	7	5	1	—	—	—
Days with low ≤ 32°F (days)	25	22	18	6	0.2	—	—	—	0.0	3	13	23
Days with snowfall ≥ 1 in (days)	3	2	2	0.4	—	—	—	—	—	0.1	0.2	2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	8	10	10	11	10
Days with high ≥ 90°F (days)	—	—	—	0.2	1	3
Days with low ≤ 32°F (days)	25	22	18	6	0.2	—
Days with snowfall ≥ 1 in (days)	3	2	2	0.4	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	8	9	10	9	10
Days with high ≥ 90°F (days)	7	5	1	—	—	—
Days with low ≤ 32°F (days)	—	—	0.0	3	13	23
Days with snowfall ≥ 1 in (days)	—	—	—	0.1	0.2	2

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	63	62	62	64	65	63	57	56	55	60	62	63
Clear days (≤ 30% cloud)	5	5	6	5	5	5	6	7	9	7	6	5
Partly cloudy days (30–70%)	11	11	10	10	10	11	14	12	10	10	10	12
Cloudy days (≥ 70%)	14	13	14	15	16	14	11	12	11	14	14	14
Relative humidity (%)	88	87	83	80	79	79	74	73	74	78	82	86
Wind speed (mph)	2.3	2.6	2.3	1.4	1.0	0.9	0.8	0.9	1.1	1.4	1.5	1.7

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	63	62	62	64	65	63
Clear days (≤ 30% cloud)	5	5	6	5	5	5
Partly cloudy days (30–70%)	11	11	10	10	10	11
Cloudy days (≥ 70%)	14	13	14	15	16	14
Relative humidity (%)	88	87	83	80	79	79
Wind speed (mph)	2.3	2.6	2.3	1.4	1.0	0.9

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	57	56	55	60	62	63
Clear days (≤ 30% cloud)	6	7	9	7	6	5
Partly cloudy days (30–70%)	14	12	10	10	10	12
Cloudy days (≥ 70%)	11	12	11	14	14	14
Relative humidity (%)	74	73	74	78	82	86
Wind speed (mph)	0.8	0.9	1.1	1.4	1.5	1.7

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Jamaica Plain (NOAA GHCN station USC00193890), about 19 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →