United States · 1991–2020

Best time to visit
Metuchen.

May leads for comfortable weather in Metuchen: typically 23.3°C by day, 10.2°C at night, with 96 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high23.3°C

Typical low10.2°C

Rain in May96 mm

Comfort

May

May · September · June

75climate match

Beach

August

August · July · June

74climate match

Outdoors

October

October · May · April

73climate match

The weakest month is January, scoring 5 against May’s 75 — days reach only 4.5°C, 19° 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

54.5° / -4.3°

Feb

56.3° / -3.7°

Mar

1711.4° / 0.1°

Apr

5018° / 5.2°

May

7523.3° / 10.2°

Jun

6928.2° / 15.7°

Jul

5330.6° / 18.6°

Aug

6429.7° / 17.9°

Sep

7525.4° / 13.7°

Oct

5418.6° / 7.1°

Nov

2912.9° / 2.4°

Dec

56.8° / -1.8°

Monthly climate evidence for Metuchen — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 42 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	4.5°C	-4.3°C	97 mm	8.5	6.0°C	9 h 34	5	Good coverage
February	6.3°C	-3.7°C	76 mm	6.9	4.3°C	10 h 35	5	Good coverage
March	11.4°C	0.1°C	106 mm	8.6	4.8°C	11 h 49	17	Good coverage
April	18°C	5.2°C	84 mm	9.3	7.9°C	13 h 14	50	Good coverage
May	23.3°C	10.2°C	96 mm	9	12.6°C	14 h 25	75	Good coverage
June	28.2°C	15.7°C	109 mm	8.9	18.1°C	15 h 03	69	Good coverage
July	30.6°C	18.6°C	134 mm	8.4	22.2°C	14 h 48	53	Good coverage
August	29.7°C	17.9°C	93 mm	7.5	23.1°C	13 h 47	64	Good coverage
September	25.4°C	13.7°C	134 mm	7.2	21.4°C	12 h 25	75	Good coverage
October	18.6°C	7.1°C	110 mm	7.3	17.3°C	11 h 03	54	Good coverage
November	12.9°C	2.4°C	91 mm	7.6	12.7°C	9 h 52	29	Good coverage
December	6.8°C	-1.8°C	100 mm	8.3	9.0°C	9 h 17	5	Good coverage

Records at PLAINFIELD, 1892–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.8°C26 Jan 1950	-25.0°C5 Jan 1904	94 mm12 Jan 2011	216 mm1979 · driest 9 mm in 1940	117
February	24.4°C15 Feb 1949	-27.2°C9 Feb 1934	88 mm6 Feb 1896	194 mm1902 · driest 20 mm in 1901	117
March	32.8°C30 Mar 1998	-17.2°C19 Mar 1967	71 mm25 Mar 1969	223 mm1980 · driest 9 mm in 1905	118
April	36.1°C18 Apr 1976	-12.2°C1 Apr 1923	67 mm14 Apr 1909	232 mm1983 · driest 22 mm in 1963	115
May	37.2°C31 May 1999	-2.2°C11 May 1923	146 mm29 May 1968	236 mm1984 · driest 21 mm in 1903	117
June	38.3°C26 Jun 1949	2.8°C1 Jun 1945	100 mm12 Jun 1903	264 mm2003 · driest 1 mm in 1949	117
July	41.1°C10 Jul 1936	6.7°C3 Jul 1929	151 mm23 Jul 1938	362 mm1938 · driest 8 mm in 1910	118
August	41.1°C11 Aug 1949	4.4°C29 Aug 1986	230 mm28 Aug 2011	502 mm2011 · driest 11 mm in 1980	116
September	40.6°C2 Sep 1953	-1.1°C26 Sep 1922	248 mm16 Sep 1999	361 mm1999 · driest 4 mm in 1941	117
October	34.4°C5 Oct 1941	-5.6°C28 Oct 1936	144 mm19 Oct 1996	357 mm2005 · driest 6 mm in 1924	116
November	30.0°C1 Nov 1950	-12.8°C24 Nov 1989	107 mm9 Nov 1972	242 mm1972 · driest 9 mm in 1976	116
December	23.3°C7 Dec 1998	-21.7°C30 Dec 1933	76 mm13 Dec 1909	251 mm1983 · driest 4 mm in 1943	116

Typical days per month at PLAINFIELD, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	24	3	2
February	0	0	22	2	2
March	<1	<1	16	4	2
April	4	<1	4	3	<1
May	12	5	<1	3	0
June	23	12	0	3	0
July	27	19	0	4	0
August	28	17	0	3	0
September	16	4	0	4	0
October	4	<1	2	3	<1
November	<1	0	11	3	<1
December	0	0	22	3	1

How often, not how much — every day in PLAINFIELD’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%	27%	10%	29%	0.3–6.8°C
February	<1%	27%	10%	29%	1.6–8.0°C
March	7%	29%	12%	35%	7.4–13.3°C
April	24%	30%	11%	37%	14.5–19.3°C
May	55%	30%	11%	35%	20.5–25.1°C
June	68%	30%	11%	36%	25.4–29.2°C
July	70%	29%	13%	33%	28.2–31.8°C
August	71%	29%	11%	30%	27.2–30.6°C
September	70%	23%	11%	23%	23.5–27.0°C
October	36%	22%	9%	22%	17.1–21.0°C
November	6%	26%	10%	26%	9.9–14.4°C
December	<1%	27%	11%	28%	2.7–8.4°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.

1893Each stripe is one year’s mean temperature against the 110-year average. Warmest: 2011. Coolest: 1904.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5101125
NOAA station: USC00287079 · PLAINFIELD
Station distance: 7.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 40.54°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 42 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 PLAINFIELD is what differs

Plainfield→South Plainfield→North Plainfield→Woodbridge→Iselin→Colonia→

Or put two places side by side: Metuchen vs Plainfield

Best time to visitMetuchen.

May

August

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Metuchen.

The whole year,
without the guesswork.

Nearby, measured,
and named.