United States · 1991–2020

Best time to visit
Grantley.

May leads for comfortable weather in Grantley: typically 24.6°C by day, 9.6°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high24.6°C

Typical low9.6°C

Rain in May100 mm

Comfort

May

May · September · June

73climate match

Beach

August

August · June · July

70climate match

Outdoors

October

October · April · May

78climate match

The weakest month is January, scoring 5 against May’s 73 — days reach only 5.1°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

55.1° / -5.5°

Feb

57.1° / -4.9°

Mar

1712.2° / -0.9°

Apr

5319.6° / 4.5°

May

7324.6° / 9.6°

Jun

7028.9° / 15°

Jul

5830.7° / 17.3°

Aug

6529.9° / 16.6°

Sep

7126.3° / 12.5°

Oct

5920.2° / 6°

Nov

2813.2° / 1.3°

Dec

57.1° / -3.2°

Monthly climate evidence for Grantley — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.1°C	-5.5°C	84 mm	8.5	9 h 37	5	Good coverage
February	7.1°C	-4.9°C	73 mm	7.4	10 h 37	5	Good coverage
March	12.2°C	-0.9°C	108 mm	9.2	11 h 49	17	Good coverage
April	19.6°C	4.5°C	94 mm	9	13 h 12	53	Good coverage
May	24.6°C	9.6°C	100 mm	10.1	14 h 21	73	Good coverage
June	28.9°C	15°C	94 mm	8.9	14 h 59	70	Good coverage
July	30.7°C	17.3°C	107 mm	9.2	14 h 44	58	Good coverage
August	29.9°C	16.6°C	93 mm	7.8	13 h 45	65	Good coverage
September	26.3°C	12.5°C	127 mm	8	12 h 24	71	Good coverage
October	20.2°C	6°C	95 mm	6.7	11 h 04	59	Good coverage
November	13.2°C	1.3°C	87 mm	7.8	9 h 55	28	Good coverage
December	7.1°C	-3.2°C	92 mm	8.7	9 h 21	5	Good coverage

Records at YORK 3 SSW PUMP STN, 1894–2014
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C26 Jan 1950	-29.4°C21 Jan 1994	64 mm20 Jan 1995	192 mm1979 · driest 9 mm in 1981	109
February	26.1°C25 Feb 1930	-28.3°C2 Feb 1961	86 mm14 Feb 2007	171 mm1902 · driest 9 mm in 2002	107
March	31.1°C30 Mar 1998	-21.1°C14 Mar 1896	73 mm20 Mar 1958	198 mm1993 · driest 12 mm in 2006	108
April	34.4°C18 Apr 1896	-12.2°C1 Apr 1923	72 mm16 Apr 1929	222 mm1952 · driest 25 mm in 1997	107
May	36.7°C29 May 2006	-3.9°C1 May 1978	77 mm26 May 1995	231 mm1989 · driest 16 mm in 1964	108
June	39.4°C30 Jun 1901	1.1°C1 Jun 1930	343 mm22 Jun 1972	520 mm1972 · driest 4 mm in 1954	107
July	41.7°C2 Jul 1901	6.1°C6 Jul 1979	94 mm4 Jul 1995	271 mm1970 · driest 18 mm in 1955	108
August	40.6°C7 Aug 1918	1.7°C29 Aug 1982	215 mm23 Aug 1933	450 mm1933 · driest 21 mm in 1930	106
September	39.4°C3 Sep 1953	-3.3°C27 Sep 1947	132 mm18 Sep 2004	371 mm1975 · driest 11 mm in 2005	106
October	36.1°C5 Oct 1941	-7.8°C24 Oct 1969	193 mm11 Oct 2013	279 mm2013 · driest 0 mm in 1924	106
November	29.4°C3 Nov 2003	-18.3°C26 Nov 1938	91 mm28 Nov 1993	178 mm1985 · driest 11 mm in 1931	106
December	25.0°C5 Dec 2001	-23.9°C30 Dec 1917	80 mm5 Dec 1993	193 mm1983 · driest 3 mm in 1955	107

Typical days per month at YORK 3 SSW PUMP STN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	3	3
February	0	0	24	3	3
March	<1	<1	19	4	2
April	6	1	7	4	<1
May	15	5	<1	3	0
June	25	13	0	3	0
July	30	19	0	3	0
August	29	17	0	3	0
September	19	6	0	3	0
October	6	1	5	3	0
November	<1	0	15	3	<1
December	0	0	24	3	2

How often, not how much — every day in YORK 3 SSW PUMP STN’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%	9%	29%	1.2–8.0°C
February	1%	27%	8%	30%	2.2–9.5°C
March	9%	30%	10%	37%	8.4–14.9°C
April	31%	31%	10%	37%	16.2–21.0°C
May	59%	32%	11%	40%	21.9–26.5°C
June	69%	30%	11%	38%	26.4–30.4°C
July	72%	28%	11%	31%	29.1–32.5°C
August	73%	27%	11%	29%	28.2–31.4°C
September	73%	23%	9%	21%	24.1–28.7°C
October	43%	21%	9%	21%	17.8–22.5°C
November	10%	26%	9%	28%	10.1–15.5°C
December	<1%	26%	9%	27%	3.3–9.2°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 102-year average. Warmest: 1998. Coolest: 1917.2008

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4558315
NOAA station: USC00369933 · YORK 3 SSW PUMP STN
Station distance: 3.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 39.94°, 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 YORK 3 SSW PUMP STN is what differs

York→Shiloh→East York→Red Lion→Spry→West York→

Or put two places side by side: Grantley vs York

Best time to visitGrantley.

May

August

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Grantley.

The whole year,
without the guesswork.

Nearby, measured,
and named.