United States · 1991–2020

Best time to visit
Avon.

September leads for comfortable weather in Avon: typically 24°C by day, 11.7°C at night, with 104 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24°C

Typical low11.7°C

Rain in September104 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 3.6°C, 20° 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

53.6° / -7°

Feb

54.9° / -6.2°

Mar

58.8° / -2.4°

Apr

3115.1° / 2.8°

May

6420.9° / 7.9°

Jun

7625.7° / 13.3°

Jul

7029° / 16.8°

Aug

7328.2° / 16°

Sep

8024° / 11.7°

Oct

4417.8° / 5.5°

Nov

1811.9° / 0.7°

Dec

56.5° / -3.7°

Monthly climate evidence for Avon — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 30 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	3.6°C	-7°C	102 mm	8.9	4.9°C	9 h 25	5	Strong coverage
February	4.9°C	-6.2°C	92 mm	8	3.3°C	10 h 30	5	Strong coverage
March	8.8°C	-2.4°C	135 mm	9.1	3.5°C	11 h 48	5	Strong coverage
April	15.1°C	2.8°C	117 mm	9.6	5.8°C	13 h 18	31	Strong coverage
May	20.9°C	7.9°C	87 mm	9.8	10.1°C	14 h 33	64	Strong coverage
June	25.7°C	13.3°C	105 mm	8.5	14.7°C	15 h 14	76	Strong coverage
July	29°C	16.8°C	82 mm	7.4	18.2°C	14 h 58	70	Strong coverage
August	28.2°C	16°C	93 mm	6.9	18.8°C	13 h 53	73	Strong coverage
September	24°C	11.7°C	104 mm	7.7	17.0°C	12 h 26	80	Strong coverage
October	17.8°C	5.5°C	130 mm	8.9	13.5°C	11 h	44	Strong coverage
November	11.9°C	0.7°C	111 mm	8.7	10.2°C	9 h 44	18	Strong coverage
December	6.5°C	-3.7°C	129 mm	9.9	7.5°C	9 h 07	5	Strong coverage

What has changed

Avon runs +1.8°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.6

Feb

+2.0

Mar

+1.3

Apr

+1.5

May

+1.6

Jun

+1.5

Jul

+2.3

Aug

+2.3

Sep

+2.2

Oct

+1.6

Nov

+1.3

Dec

+2.5

September daytime highs, 2011–2025. Last recorded: 26.0°C.

Records at BROCKTON, 1894–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C12 Jan 2020	-27.8°C22 Jan 1961	83 mm24 Jan 1998	361 mm1979 · driest 16 mm in 1970	117
February	22.2°C23 Feb 2022	-28.3°C9 Feb 1934	79 mm13 Feb 2008	221 mm1969 · driest 18 mm in 1895	116
March	31.1°C29 Mar 1945	-20.6°C19 Mar 1967	121 mm14 Mar 2010	453 mm2010 · driest 0 mm in 1915	115
April	35.0°C17 Apr 2002	-10.6°C4 Apr 1954	84 mm24 Apr 1898	234 mm1987 · driest 25 mm in 1930	116
May	36.1°C19 May 2026	-3.9°C9 May 1956	94 mm25 May 1967	230 mm1954 · driest 4 mm in 1944	114
June	40.6°C24 Jun 2025	1.7°C1 Jun 1967	131 mm30 Jun 1998	422 mm2006 · driest 2 mm in 1949	118
July	39.4°C10 Jul 1911	4.4°C2 Jul 1978	111 mm13 Jul 1996	275 mm1988 · driest 10 mm in 1949	115
August	40.0°C28 Aug 1948	2.8°C30 Aug 1965	200 mm19 Aug 1955	419 mm1955 · driest 9 mm in 1993	115
September	37.8°C2 Sep 1953	-2.8°C29 Sep 1957	133 mm20 Sep 1899	261 mm1918 · driest 3 mm in 1930	116
October	32.2°C4 Oct 2023	-10.6°C31 Oct 1966	147 mm20 Oct 1996	377 mm2005 · driest 6 mm in 1946	116
November	28.3°C6 Nov 2024	-16.1°C24 Nov 1989	99 mm5 Nov 1955	321 mm2018 · driest 12 mm in 1917	115
December	25.6°C7 Dec 1998	-26.7°C30 Dec 1933	102 mm12 Dec 1992	278 mm1969 · driest 20 mm in 1989	113

Typical days per month at BROCKTON, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	26	4	2
February	0	0	24	3	2
March	<1	0	22	4	2
April	2	<1	8	4	<1
May	8	2	<1	3	0
June	18	6	0	3	0
July	27	13	0	3	0
August	26	11	0	3	0
September	13	3	<1	3	0
October	3	<1	5	4	0
November	<1	0	15	4	<1
December	0	0	24	4	1

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 84); on 2011–2025 it is September (83). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BROCKTON’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%	28%	10%	32%	0.3–6.5°C
February	<1%	27%	11%	32%	1.0–7.3°C
March	3%	30%	11%	36%	5.9–11.7°C
April	15%	30%	11%	36%	12.3–16.9°C
May	47%	29%	9%	33%	18.6–23.4°C
June	68%	28%	10%	29%	23.5–27.7°C
July	75%	24%	8%	23%	26.7–30.5°C
August	75%	25%	9%	24%	25.8–29.6°C
September	64%	24%	10%	23%	22.1–25.6°C
October	29%	24%	10%	26%	15.8–19.9°C
November	5%	28%	11%	30%	9.2–14.2°C
December	<1%	28%	11%	33%	2.6–8.5°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.

1894Each stripe is one year’s mean temperature against the 100-year average. Warmest: 2023. Coolest: 2004.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4929476
NOAA station: USC00190860 · BROCKTON
Station distance: 9.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 42.13°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 30 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 BROCKTON is what differs

Brockton→Abington→Whitman→East Bridgewater→Hanson→West Bridgewater→

Or put two places side by side: Avon vs Brockton

Best time to visitAvon.

September

July

May

The whole year,without the guesswork.

Avon runs +1.8°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Avon.

The whole year,
without the guesswork.

Avon runs +1.8°C
on the 1961–1990 baseline.

Nearby, measured,
and named.