United States · 1991–2020

Best time to visit
Wilton.

June leads for comfortable weather in Wilton: typically 25°C by day, 14.4°C at night, with 114 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high25°C

Typical low14.4°C

Rain in June114 mm

Comfort

June

June · August · September

79climate match

Beach

July

July · August · June

62climate match

Outdoors

September

September · May · October

79climate match

The weakest month is January, scoring 5 against June’s 79 — days reach only -4.7°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

5-4.7° / -12.2°

Feb

5-1° / -9.2°

Mar

55.2° / -4°

Apr

3213.9° / 2.7°

May

5920.1° / 8.9°

Jun

7925° / 14.4°

Jul

7126.9° / 16.7°

Aug

7925.6° / 15.8°

Sep

7321.4° / 11.3°

Oct

4214.3° / 5°

Nov

54.9° / -2.4°

Dec

5-2° / -9°

Monthly climate evidence for Wilton — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-4.7°C	-12.2°C	26 mm	5.5	9 h 15	5	Good coverage
February	-1°C	-9.2°C	18 mm	3.3	10 h 24	5	Good coverage
March	5.2°C	-4°C	37 mm	6.1	11 h 47	5	Good coverage
April	13.9°C	2.7°C	86 mm	9.4	13 h 22	32	Good coverage
May	20.1°C	8.9°C	106 mm	10.8	14 h 42	59	Good coverage
June	25°C	14.4°C	114 mm	8.9	15 h 26	79	Good coverage
July	26.9°C	16.7°C	114 mm	8.8	15 h 09	71	Good coverage
August	25.6°C	15.8°C	104 mm	8.2	13 h 59	79	Good coverage
September	21.4°C	11.3°C	86 mm	7.7	12 h 27	73	Good coverage
October	14.3°C	5°C	65 mm	7.2	10 h 56	42	Good coverage
November	4.9°C	-2.4°C	48 mm	6.7	9 h 35	5	Good coverage
December	-2°C	-9°C	22 mm	5.3	8 h 56	5	Good coverage

Records at CASHTON, 1949–2009
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	12.2°C25 Jan 1981	-36.7°C15 Jan 1972	33 mm25 Jan 1998	73 mm1980 · driest 1 mm in 1962	48
February	15.0°C29 Feb 2000	-36.7°C2 Feb 1996	23 mm19 Feb 1971	77 mm1971 · driest 0 mm in 1964	46
March	28.3°C29 Mar 1986	-30.0°C1 Mar 1962	37 mm31 Mar 1998	97 mm1976 · driest 1 mm in 1994	50
April	33.3°C29 Apr 1952	-15.0°C3 Apr 1954	82 mm25 Apr 1994	208 mm1981 · driest 17 mm in 1952	49
May	32.8°C29 May 2006	-6.1°C10 May 1981	56 mm20 May 1959	267 mm2004 · driest 21 mm in 1969	51
June	37.8°C21 Jun 1988	1.1°C1 Jun 1964	114 mm8 Jun 2008	234 mm2008 · driest 25 mm in 1956	48
July	38.3°C15 Jul 1988	5.0°C5 Jul 1951	121 mm1 Jul 1978	278 mm1978 · driest 18 mm in 2001	50
August	38.9°C1 Aug 1988	1.1°C20 Aug 1950	62 mm19 Aug 2007	377 mm2007 · driest 9 mm in 1970	47
September	35.0°C7 Sep 1978	-2.8°C29 Sep 1949	79 mm19 Sep 1983	212 mm1992 · driest 8 mm in 1952	50
October	32.8°C1 Oct 1976	-8.9°C5 Oct 1952	49 mm29 Oct 1961	177 mm1979 · driest 0 mm in 1952	48
November	22.8°C3 Nov 1964	-24.4°C24 Nov 1950	46 mm1 Nov 1991	159 mm1982 · driest 0 mm in 1962	49
December	16.7°C5 Dec 2001	-33.3°C18 Dec 1983	27 mm1 Dec 2007	68 mm1982 · driest 3 mm in 1956	49

Typical days per month at CASHTON, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	31	<1	8
February	0	0	26	<1	6
March	<1	0	24	1	4
April	1	<1	10	3	2
May	6	<1	<1	3	<1
June	17	4	0	4	0
July	23	6	0	4	0
August	19	4	0	3	0
September	9	<1	<1	3	0
October	2	0	5	2	<1
November	0	0	20	2	3
December	0	0	28	<1	7

How often, not how much — every day in CASHTON’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%	17%	2%	15%	-8.6–-2.4°C
February	0%	13%	2%	9%	-4.6–2.6°C
March	1%	20%	5%	17%	1.4–7.9°C
April	15%	28%	9%	36%	10.5–16.7°C
May	44%	30%	11%	39%	18.3–23.1°C
June	65%	29%	13%	34%	23.2–27.4°C
July	73%	26%	13%	28%	25.3–29.8°C
August	72%	26%	12%	27%	24.5–28.7°C
September	50%	25%	10%	28%	19.8–23.8°C
October	19%	21%	7%	21%	12.7–18.0°C
November	1%	21%	7%	19%	1.6–8.3°C
December	0%	17%	2%	12%	-5.3–1.0°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.

1950Each stripe is one year’s mean temperature against the 36-year average. Warmest: 1998. Coolest: 1951.2008

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5279272
NOAA station: USC00471280 · CASHTON
Station distance: 21.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 43.81°, 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 CASHTON is what differs

Cashton→Portland→Norwalk→Ontario→Melvina→Bloomingdale→

Or put two places side by side: Wilton vs Cashton

Best time to visitWilton.