United States · 1991–2020

Best time to visit
Blackstone.

September leads for comfortable weather in Blackstone: typically 24.5°C by day, 12.5°C at night, with 106 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.5°C

Typical low12.5°C

Rain in September106 mm

Comfort

September

September · June · August

80climate match

Beach

July

July · August · June

75climate match

Outdoors

May

May · September · October

77climate match

The weakest month is January, scoring 5 against September’s 80 — days reach only 3.4°C, 21° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

53.4° / -7.1°

Feb

54.4° / -6.4°

Mar

58.4° / -2.5°

Apr

3315.4° / 3.2°

May

6521° / 9°

Jun

7725.6° / 13.9°

Jul

6629° / 17.7°

Aug

7028.1° / 16.4°

Sep

8024.5° / 12.5°

Oct

4517.7° / 6.3°

Nov

1911.9° / 0.5°

Dec

56° / -4.2°

Monthly climate evidence for Blackstone — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	3.4°C	-7.1°C	111 mm	9.3	9 h 26	5	Good coverage
February	4.4°C	-6.4°C	94 mm	8.5	10 h 31	5	Good coverage
March	8.4°C	-2.5°C	124 mm	9	11 h 48	5	Good coverage
April	15.4°C	3.2°C	120 mm	9.7	13 h 17	33	Good coverage
May	21°C	9°C	92 mm	10	14 h 32	65	Good coverage
June	25.6°C	13.9°C	109 mm	8.8	15 h 13	77	Good coverage
July	29°C	17.7°C	92 mm	8.1	14 h 57	66	Good coverage
August	28.1°C	16.4°C	102 mm	8.3	13 h 52	70	Good coverage
September	24.5°C	12.5°C	106 mm	7.5	12 h 26	80	Good coverage
October	17.7°C	6.3°C	129 mm	8.6	11 h	45	Good coverage
November	11.9°C	0.5°C	107 mm	8.4	9 h 45	19	Good coverage
December	6°C	-4.2°C	134 mm	9	9 h 08	5	Good coverage

Records at WOONSOCKET, 1967–2021
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C13 Jan 2020	-22.2°C28 Jan 2005	58 mm13 Jan 2018	178 mm2019 · driest 49 mm in 2020	17
February	22.8°C25 Feb 2017	-23.9°C14 Feb 2016	62 mm14 Feb 2008	223 mm2008 · driest 16 mm in 2012	17
March	27.8°C20 Mar 2012	-16.1°C1 Mar 2014	100 mm30 Mar 2010	346 mm2010 · driest 11 mm in 2006	17
April	33.3°C29 Apr 2009	-7.8°C6 Apr 2016	89 mm23 Apr 2012	207 mm2007 · driest 43 mm in 2013	17
May	36.1°C19 May 2017	-2.2°C1 May 2008	56 mm29 May 2021	195 mm2006 · driest 18 mm in 2015	17
June	36.1°C11 Jun 2008	4.4°C1 Jun 2009	111 mm8 Jun 2013	324 mm2006 · driest 24 mm in 2004	18
July	38.3°C23 Jul 2011	6.7°C3 Jul 2016	73 mm29 Jul 2012	214 mm2009 · driest 51 mm in 2016	17
August	36.1°C3 Aug 2006	6.1°C18 Aug 2014	61 mm10 Aug 2013	249 mm2011 · driest 21 mm in 2007	17
September	36.1°C9 Sep 2015	1.1°C22 Sep 2020	69 mm26 Sep 2018	242 mm2018 · driest 16 mm in 2014	17
October	30.0°C7 Oct 2007	-7.8°C30 Oct 2020	173 mm15 Oct 2005	399 mm2005 · driest 41 mm in 2013	17
November	26.7°C10 Nov 2020	-11.7°C23 Nov 2018	73 mm23 Nov 2006	242 mm2018 · driest 27 mm in 2012	18
December	21.1°C4 Dec 2009	-17.8°C15 Dec 2005	109 mm13 Dec 2010	261 mm2020 · driest 56 mm in 2006	17

Typical days per month at WOONSOCKET, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	4	5
February	0	0	25	4	5
March	<1	0	22	3	2
April	1	<1	8	4	<1
May	8	2	<1	3	0
June	18	5	0	3	0
July	27	14	0	3	0
August	26	11	0	3	0
September	15	3	0	3	0
October	3	<1	3	4	<1
November	<1	0	16	3	<1
December	0	0	25	5	3

How often, not how much — every day in WOONSOCKET’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	<1%	29%	11%	34%	1.3–5.8°C
February	<1%	29%	11%	34%	1.8–7.3°C
March	5%	29%	12%	33%	5.7–11.8°C
April	19%	31%	12%	39%	12.7–17.2°C
May	45%	31%	10%	38%	19.1–23.7°C
June	66%	29%	9%	33%	24.5–27.2°C
July	74%	26%	10%	25%	27.1–30.2°C
August	74%	26%	10%	25%	26.7–29.5°C
September	69%	25%	11%	26%	23.1–25.5°C
October	27%	25%	10%	28%	16.1–19.2°C
November	5%	29%	12%	33%	9.7–14.1°C
December	<1%	29%	13%	35%	3.3–8.8°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4930738
NOAA station: USC00379423 · WOONSOCKET
Station distance: 4.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 42.02°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from WOONSOCKET is what differs

Pawtucket→Woonsocket→Cumberland→Smithfield→Lincoln→Central Falls→

Or put two places side by side: Blackstone vs Pawtucket

Best time to visitBlackstone.

September

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Blackstone.

The whole year,
without the guesswork.

Nearby, measured,
and named.