United States · 1991–2020

Best time to visit
Horseheads.

September leads for comfortable weather in Horseheads: typically 23.6°C by day, 9.4°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23.6°C

Typical low9.4°C

Rain in September90 mm

Comfort

September

September · June · August

76climate match

Beach

July

July · August · June

63climate match

Outdoors

May

May · September · October

74climate match

The weakest month is January, scoring 5 against September’s 76 — days reach only 1.1°C, 23° 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

51.1° / -9.4°

Feb

52.6° / -8.6°

Mar

57.6° / -4.7°

Apr

3314.9° / 0.5°

May

6521.7° / 6.7°

Jun

7425.7° / 11.5°

Jul

7128.3° / 13.9°

Aug

7327.4° / 13.4°

Sep

7623.6° / 9.4°

Oct

4216.3° / 3.5°

Nov

1810° / -1.7°

Dec

53.8° / -5.6°

Monthly climate evidence for Horseheads — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	1.1°C	-9.4°C	41 mm	6.4	9 h 25	5	Good coverage
February	2.6°C	-8.6°C	37 mm	6	10 h 30	5	Good coverage
March	7.6°C	-4.7°C	54 mm	7.6	11 h 48	5	Good coverage
April	14.9°C	0.5°C	69 mm	9	13 h 18	33	Good coverage
May	21.7°C	6.7°C	77 mm	10.1	14 h 33	65	Good coverage
June	25.7°C	11.5°C	93 mm	10.4	15 h 14	74	Good coverage
July	28.3°C	13.9°C	83 mm	9.6	14 h 58	71	Good coverage
August	27.4°C	13.4°C	90 mm	8.6	13 h 53	73	Good coverage
September	23.6°C	9.4°C	90 mm	8.1	12 h 26	76	Good coverage
October	16.3°C	3.5°C	79 mm	9.2	10 h 59	42	Good coverage
November	10°C	-1.7°C	49 mm	7.3	9 h 44	18	Good coverage
December	3.8°C	-5.6°C	53 mm	7.9	9 h 07	5	Good coverage

Records at ELMIRA CORNING RGNL AP, 1938–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.6°C25 Jan 1950	-31.1°C15 Jan 1957	30 mm25 Jan 1958	92 mm1958 · driest 13 mm in 2015	45
February	23.9°C24 Feb 2017	-31.7°C1 Feb 1948	32 mm6 Feb 2008	89 mm1950 · driest 13 mm in 2010	45
March	29.4°C30 Mar 1998	-25.6°C4 Mar 1950	44 mm24 Mar 1953	130 mm2008 · driest 21 mm in 2013	45
April	33.3°C27 Apr 2009	-16.0°C5 Apr 2016	51 mm29 Apr 2021	130 mm1947 · driest 28 mm in 2018	45
May	34.4°C28 May 2016	-4.9°C1 May 2008	72 mm27 May 1946	202 mm1946 · driest 17 mm in 2023	46
June	38.9°C26 Jun 1952	-0.6°C1 Jun 2001	68 mm30 Jun 1998	166 mm1940 · driest 13 mm in 1952	45
July	40.0°C21 Jul 2011	3.9°C3 Jul 2007	67 mm21 Jul 2003	208 mm2018 · driest 26 mm in 2002	46
August	37.8°C9 Aug 2001	0.6°C25 Aug 1940	96 mm13 Aug 2018	214 mm2018 · driest 17 mm in 1957	45
September	38.9°C2 Sep 1953	-4.4°C28 Sep 1947	83 mm7 Sep 2011	229 mm2011 · driest 25 mm in 2016	43
October	32.2°C5 Oct 1951	-7.2°C26 Oct 1952	102 mm14 Oct 1955	254 mm1955 · driest 11 mm in 2022	43
November	26.7°C1 Nov 1950	-21.7°C26 Nov 1938	52 mm29 Nov 2005	123 mm1945 · driest 13 mm in 2012	44
December	21.1°C6 Dec 1998	-26.7°C27 Dec 1950	38 mm14 Dec 1999	105 mm2023 · driest 13 mm in 2017	44

Typical days per month at ELMIRA CORNING RGNL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	1	0
February	0	0	26	1	<1
March	<1	0	24	2	<1
April	2	<1	15	2	0
May	10	3	4	3	0
June	18	5	0	3	0
July	26	11	0	3	—
August	24	8	0	3	0
September	12	3	<1	2	0
October	3	<1	9	2	0
November	<1	0	21	1	0
December	0	0	25	2	0

How often, not how much — every day in ELMIRA CORNING RGNL AP’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%	24%	4%	24%	-1.6–4.2°C
February	<1%	23%	4%	22%	-1.1–6.0°C
March	5%	27%	6%	31%	4.1–11.4°C
April	18%	33%	7%	40%	12.4–17.3°C
May	42%	34%	9%	47%	19.2–23.4°C
June	63%	32%	10%	39%	24.1–27.6°C
July	69%	31%	9%	33%	26.7–31.0°C
August	72%	27%	10%	29%	25.7–29.6°C
September	60%	26%	8%	29%	21.5–25.1°C
October	27%	26%	8%	28%	14.8–19.8°C
November	4%	27%	5%	30%	7.3–12.4°C
December	<1%	26%	5%	26%	0.2–7.0°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.

1946Each stripe is one year’s mean temperature against the 42-year average. Warmest: 2024. Coolest: 1958.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5121309
NOAA station: USW00014748 · ELMIRA CORNING RGNL AP
Station distance: 6.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 42.17°, 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 ELMIRA CORNING RGNL AP is what differs

Big Flats Airport→Big Flats→Horseheads North→Pine Valley→Millport→Beaver Dams→

Or put two places side by side: Horseheads vs Big Flats Airport

Best time to visitHorseheads.

September

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Horseheads.

The whole year,
without the guesswork.

Nearby, measured,
and named.