United States · 1991–2020

Best time to visit
Acton.

September leads for comfortable weather in Acton: typically 27.4°C by day, 12.5°C at night, with 98 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27.4°C

Typical low12.5°C

Rain in September98 mm

Comfort

September

September · May · October

72climate match

Beach

August

August · June · July

69climate match

Outdoors

October

October · April · May

76climate match

The weakest month is January, scoring 5 against September’s 72 — days reach only 6.4°C, 18° 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

56.4° / -4.3°

Feb

58.9° / -3.3°

Mar

2114.1° / 0.3°

Apr

5120.3° / 5.2°

May

7024.8° / 10.9°

Jun

6329.1° / 15.9°

Jul

5330.9° / 18.2°

Aug

6230.8° / 17.1°

Sep

7227.4° / 12.5°

Oct

6621.7° / 5.7°

Nov

3214.6° / 0.9°

Dec

58° / -2.9°

Monthly climate evidence for Acton — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.4°C	-4.3°C	107 mm	9.4	9 h 51	5	Good coverage
February	8.9°C	-3.3°C	95 mm	8	10 h 45	5	Good coverage
March	14.1°C	0.3°C	128 mm	10.2	11 h 51	21	Good coverage
April	20.3°C	5.2°C	123 mm	10.4	13 h 06	51	Good coverage
May	24.8°C	10.9°C	135 mm	10.1	14 h 09	70	Good coverage
June	29.1°C	15.9°C	126 mm	9.3	14 h 43	63	Good coverage
July	30.9°C	18.2°C	132 mm	8.5	14 h 30	53	Good coverage
August	30.8°C	17.1°C	93 mm	6.8	13 h 36	62	Good coverage
September	27.4°C	12.5°C	98 mm	6.5	12 h 23	72	Good coverage
October	21.7°C	5.7°C	81 mm	6.3	11 h 10	66	Good coverage
November	14.6°C	0.9°C	85 mm	8	10 h 07	32	Good coverage
December	8°C	-2.9°C	112 mm	10	9 h 36	5	Good coverage

Records at BRADFORDSVILLE, 1962–2011
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.9°C23 Jan 1999	-34.4°C24 Jan 1963	69 mm10 Jan 1974	212 mm1974 · driest 18 mm in 1986	47
February	27.8°C24 Feb 1996	-25.6°C5 Feb 1996	107 mm14 Feb 1989	353 mm1989 · driest 21 mm in 1968	47
March	29.4°C31 Mar 1963	-21.7°C3 Mar 1980	103 mm2 Mar 1997	360 mm1997 · driest 29 mm in 2010	48
April	32.2°C27 Apr 1986	-8.3°C9 Apr 2007	117 mm28 Apr 1970	325 mm1972 · driest 41 mm in 1986	47
May	35.0°C19 May 1962	-2.8°C4 May 1971	106 mm2 May 2010	345 mm1983 · driest 53 mm in 2005	47
June	37.8°C24 Jun 1988	0.0°C1 Jun 1966	80 mm12 Jun 2006	283 mm1998 · driest 23 mm in 1994	47
July	40.6°C10 Jul 1988	6.7°C5 Jul 1968	107 mm10 Jul 2003	299 mm1971 · driest 24 mm in 1999	46
August	40.6°C18 Aug 1988	3.3°C29 Aug 1986	77 mm21 Aug 2004	257 mm1977 · driest 11 mm in 2011	47
September	37.2°C5 Sep 1999	0.0°C24 Sep 1983	110 mm2 Sep 1982	262 mm1979 · driest 20 mm in 1978	47
October	33.3°C7 Oct 2007	-7.2°C29 Oct 1976	96 mm12 Oct 2002	176 mm1962 · driest 3 mm in 1963	46
November	28.9°C4 Nov 2003	-18.3°C30 Nov 1976	83 mm20 Nov 1988	248 mm1973 · driest 12 mm in 1976	47
December	25.6°C4 Dec 1982	-27.2°C23 Dec 1989	102 mm9 Dec 1978	364 mm1978 · driest 14 mm in 1965	46

Typical days per month at BRADFORDSVILLE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	3	4
February	<1	0	22	3	4
March	2	0	16	4	1
April	8	<1	6	4	<1
May	17	5	<1	4	0
June	26	14	0	4	0
July	28	20	0	4	0
August	29	20	0	3	0
September	23	10	<1	3	0
October	10	1	6	2	<1
November	1	0	16	3	<1
December	0	0	23	4	3

How often, not how much — every day in BRADFORDSVILLE’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%	2.5–9.5°C
February	3%	29%	11%	36%	5.0–11.2°C
March	17%	32%	13%	42%	11.1–17.3°C
April	38%	34%	14%	46%	17.7–22.5°C
May	59%	32%	15%	41%	22.7–27.2°C
June	70%	29%	14%	35%	27.4–30.6°C
July	72%	28%	13%	31%	29.7–32.9°C
August	76%	24%	10%	23%	29.1–32.6°C
September	75%	22%	10%	22%	25.6–29.5°C
October	51%	22%	8%	21%	19.4–24.3°C
November	17%	28%	11%	34%	11.7–17.5°C
December	2%	31%	12%	37%	5.4–11.5°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.

1965Each stripe is one year’s mean temperature against the 42-year average. Warmest: 1998. Coolest: 1978.2010

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4282206
NOAA station: USC00150940 · BRADFORDSVILLE
Station distance: 18.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 37.35°, 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 BRADFORDSVILLE is what differs

Lebanon→Liberty→Bradfordsville→Mackville→Raywick→Aliceton→

Or put two places side by side: Acton vs Lebanon

Best time to visitActon.