United States · 1991–2020

Best time to visit
Maynard.

September leads for comfortable weather in Maynard: typically 24.3°C by day, 10.3°C at night, with 109 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high24.3°C

Typical low10.3°C

Rain in September109 mm

Comfort

September

September · June · August

76climate match

Beach

July

July · August · June

70climate match

Outdoors

May

May · September · October

73climate match

The weakest month is January, scoring 5 against September’s 76 — days reach only 2.2°C, 22° below the 24°C the score treats as ideal, and nights drop to -9.2°C.

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

52.2° / -9.2°

Feb

53.8° / -8.6°

Mar

58.5° / -3.9°

Apr

3415.8° / 2°

May

6621.7° / 8°

Jun

7426.3° / 13.2°

Jul

6729.6° / 16.2°

Aug

6928.6° / 15°

Sep

7624.3° / 10.3°

Oct

4117.6° / 3.6°

Nov

1511.3° / -1°

Dec

55.3° / -5.6°

Monthly climate evidence for Maynard — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.2°C	-9.2°C	90 mm	9	9 h 23	5	Strong coverage
February	3.8°C	-8.6°C	92 mm	7.6	10 h 29	5	Strong coverage
March	8.5°C	-3.9°C	118 mm	9.5	11 h 48	5	Strong coverage
April	15.8°C	2°C	103 mm	9.3	13 h 18	34	Strong coverage
May	21.7°C	8°C	93 mm	9.7	14 h 34	66	Strong coverage
June	26.3°C	13.2°C	101 mm	9.1	15 h 16	74	Strong coverage
July	29.6°C	16.2°C	92 mm	7.8	15 h	67	Strong coverage
August	28.6°C	15°C	111 mm	8.2	13 h 54	69	Strong coverage
September	24.3°C	10.3°C	109 mm	7.7	12 h 26	76	Good coverage
October	17.6°C	3.6°C	122 mm	8.6	10 h 59	41	Strong coverage
November	11.3°C	-1°C	100 mm	8.5	9 h 43	15	Good coverage
December	5.3°C	-5.6°C	114 mm	9	9 h 05	5	Strong coverage

Records at MAYNARD 2, 1963–2017
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.2°C7 Jan 2007	-30.0°C22 Jan 1984	69 mm25 Jan 1979	313 mm1979 · driest 15 mm in 2017	53
February	22.8°C25 Feb 1985	-26.7°C5 Feb 1996	62 mm26 Feb 2010	247 mm2008 · driest 4 mm in 1987	52
March	31.1°C29 Mar 1998	-22.2°C19 Mar 1967	68 mm30 Mar 2014	262 mm2001 · driest 15 mm in 2006	51
April	35.0°C20 Apr 1976	-11.1°C2 Apr 1964	72 mm2 Apr 2004	311 mm1987 · driest 14 mm in 2014	51
May	37.2°C11 May 1979	-3.9°C7 May 2001	69 mm10 May 1977	246 mm2006 · driest 4 mm in 2015	50
June	37.2°C11 Jun 2008	0.0°C6 Jun 1964	99 mm14 Jun 1998	336 mm1982 · driest 10 mm in 2016	51
July	40.6°C23 Jul 2011	4.4°C1 Jul 1988	94 mm14 Jul 1996	262 mm2008 · driest 3 mm in 2016	50
August	37.8°C13 Aug 2016	2.8°C22 Aug 1982	131 mm20 Aug 1991	234 mm1991 · driest 17 mm in 2007	51
September	36.7°C12 Sep 1983	-3.3°C29 Sep 2000	132 mm7 Sep 2008	262 mm2008 · driest 18 mm in 2014	51
October	31.7°C7 Oct 1963	-9.4°C21 Oct 1972	153 mm21 Oct 1996	374 mm2005 · driest 16 mm in 2013	52
November	26.7°C5 Nov 1987	-15.6°C24 Nov 1989	78 mm7 Nov 1963	246 mm1963 · driest 0 mm in 2016	52
December	25.0°C8 Dec 1998	-25.6°C26 Dec 1980	78 mm19 Dec 1986	223 mm2008 · driest 21 mm in 1980	51

Typical days per month at MAYNARD 2, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	3	6
February	0	0	24	3	6
March	<1	0	24	4	4
April	3	<1	10	3	1
May	9	3	<1	3	0
June	18	8	0	3	0
July	26	15	0	3	0
August	24	12	0	3	0
September	13	3	<1	3	0
October	3	<1	7	3	<1
November	<1	0	18	3	1
December	0	0	25	4	5

How often, not how much — every day in MAYNARD 2’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%	34%	-1.8–4.7°C
February	<1%	26%	10%	28%	0.5–6.8°C
March	4%	29%	11%	34%	5.8–11.0°C
April	18%	30%	11%	38%	12.9–17.3°C
May	49%	30%	11%	37%	19.0–24.3°C
June	65%	30%	10%	33%	23.9–28.0°C
July	73%	26%	10%	26%	27.7–31.3°C
August	74%	25%	10%	23%	26.2–29.9°C
September	65%	25%	10%	25%	22.1–25.8°C
October	28%	25%	10%	24%	15.3–19.6°C
November	4%	30%	12%	37%	8.4–13.6°C
December	<1%	29%	12%	33%	1.7–7.6°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.

1964Each stripe is one year’s mean temperature against the 45-year average. Warmest: 1998. Coolest: 1972.2016

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4943490
NOAA station: USC00194580 · MAYNARD 2
Station distance: 0.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude 42.43°, 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 MAYNARD 2 is what differs

Marlborough→Acton→Sudbury→Hudson→Harvard→West Concord→

Or put two places side by side: Maynard vs Marlborough

Best time to visitMaynard.

September

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Maynard.

The whole year,
without the guesswork.

Nearby, measured,
and named.