United States · 1991–2020

Best time to visit
Grafton.

August leads for comfortable weather in Grafton: typically 25.3°C by day, 14.4°C at night, with 108 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25.3°C

Typical low14.4°C

Rain in August108 mm

Comfort

August

August · June · July

80climate match

Beach

July

July · August · June

57climate match

Outdoors

September

September · May · October

79climate match

The weakest month is January, scoring 5 against August’s 80 — days reach only -5.3°C, 29° 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

5-5.3° / -14.9°

Feb

5-3° / -12.5°

Mar

54.1° / -5.7°

Apr

2512.9° / 1.2°

May

5419.6° / 7.9°

Jun

7424.9° / 13.9°

Jul

7226.5° / 15.9°

Aug

8025.3° / 14.4°

Sep

7222° / 9.4°

Oct

3914.7° / 2.6°

Nov

55.4° / -4.5°

Dec

5-2° / -10.8°

Monthly climate evidence for Grafton — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-5.3°C	-14.9°C	27 mm	5.3	9 h 18	5	Strong coverage
February	-3°C	-12.5°C	26 mm	4.4	10 h 26	5	Strong coverage
March	4.1°C	-5.7°C	50 mm	5.9	11 h 47	5	Strong coverage
April	12.9°C	1.2°C	100 mm	8.4	13 h 21	25	Strong coverage
May	19.6°C	7.9°C	121 mm	9.9	14 h 39	54	Strong coverage
June	24.9°C	13.9°C	141 mm	10.3	15 h 23	74	Strong coverage
July	26.5°C	15.9°C	126 mm	8.2	15 h 06	72	Strong coverage
August	25.3°C	14.4°C	108 mm	7.4	13 h 57	80	Strong coverage
September	22°C	9.4°C	91 mm	6.8	12 h 27	72	Strong coverage
October	14.7°C	2.6°C	70 mm	6.4	10 h 57	39	Strong coverage
November	5.4°C	-4.5°C	45 mm	5.1	9 h 38	5	Strong coverage
December	-2°C	-10.8°C	33 mm	5	8 h 59	5	Strong coverage

What has changed

Grafton runs -1.1°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

0.0

Feb

-1.5

Mar

-0.7

Apr

-2.0

May

-2.4

Jun

-1.6

Jul

-2.5

Aug

-2.4

Sep

-0.2

Oct

-1.2

Nov

-0.2

Dec

+1.8

August daytime highs, 2011–2025. Last recorded: 24.4°C.

Records at NORTHWOOD, 1896–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.2°C25 Jan 1944	-38.3°C12 Jan 1912	46 mm4 Jan 1971	68 mm1916 · driest 0 mm in 1899	127
February	21.7°C27 Feb 2024	-36.7°C8 Feb 1899	51 mm22 Feb 1922	100 mm1915 · driest 0 mm in 1996	124
March	28.3°C29 Mar 1986	-32.8°C1 Mar 1962	52 mm23 Mar 1966	127 mm1951 · driest 0 mm in 1994	125
April	33.9°C21 Apr 1980	-15.6°C5 Apr 2018	71 mm20 Apr 1993	170 mm1999 · driest 10 mm in 1971	129
May	40.6°C31 May 1934	-6.7°C4 May 1907	113 mm22 May 2004	310 mm2004 · driest 15 mm in 2014	128
June	39.4°C27 Jun 1934	0.0°C1 Jun 1897	129 mm15 Jun 1978	306 mm1914 · driest 19 mm in 1929	125
July	41.7°C14 Jul 1936	3.3°C22 Jul 1947	125 mm24 Jul 2025	314 mm2025 · driest 4 mm in 1937	124
August	39.4°C3 Aug 1930	1.7°C12 Aug 1924	169 mm19 Aug 1990	328 mm1990 · driest 5 mm in 1969	125
September	36.7°C8 Sep 1931	-6.7°C30 Sep 1899	166 mm6 Sep 1927	386 mm1965 · driest 9 mm in 2011	127
October	33.9°C5 Oct 1963	-18.9°C30 Oct 1925	101 mm5 Oct 2013	182 mm2017 · driest 0 mm in 1952	128
November	26.1°C1 Nov 1933	-26.7°C30 Nov 1897	64 mm13 Nov 1909	188 mm1909 · driest 0 mm in 1962	126
December	18.9°C2 Dec 1998	-32.8°C19 Dec 1983	38 mm2 Dec 2007	104 mm1911 · driest 1 mm in 1989	126

Typical days per month at NORTHWOOD, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	<1	6
February	0	0	26	<1	5
March	<1	0	25	2	3
April	1	<1	12	3	1
May	6	1	1	4	<1
June	16	4	0	4	0
July	21	5	0	4	0
August	17	3	0	3	0
September	10	2	<1	3	0
October	2	<1	10	2	<1
November	0	0	23	2	2
December	0	0	29	1	5

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 79); on 2011–2025 it is August (82). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in NORTHWOOD’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	0%	15%	2%	9%	-8.8–-0.5°C
February	0%	15%	3%	9%	-6.5–1.9°C
March	3%	20%	6%	18%	0.5–8.7°C
April	17%	26%	9%	31%	10.5–17.5°C
May	43%	30%	12%	36%	17.9–23.5°C
June	63%	31%	14%	38%	23.4–28.5°C
July	75%	24%	10%	23%	26.0–31.0°C
August	74%	24%	11%	23%	24.8–29.6°C
September	55%	25%	9%	26%	20.3–24.7°C
October	25%	19%	7%	17%	13.1–19.1°C
November	2%	16%	5%	14%	2.1–9.1°C
December	0%	16%	3%	10%	-5.4–1.5°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.

1897Each stripe is one year’s mean temperature against the 101-year average. Warmest: 1931. Coolest: 2014.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4858846
NOAA station: USC00136103 · NORTHWOOD
Station distance: 17.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 43.33°, 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 NORTHWOOD is what differs

Northwood→Kensett→Carpenter→Bolan→Otranto→Deer Creek→

Or put two places side by side: Grafton vs Northwood

Best time to visitGrafton.