United States · 1991–2020

Best time to visit
Geneseo.

June leads for comfortable weather in Geneseo: typically 25°C by day, 13.1°C at night, with 95 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high25°C

Typical low13.1°C

Rain in June95 mm

Comfort

June

June · August · September

79climate match

Beach

July

July · August · June

62climate match

Outdoors

May

May · September · October

80climate match

The weakest month is January, scoring 5 against June’s 79 — days reach only 0.1°C, 24° 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

50.1° / -8.9°

Feb

51.5° / -7.9°

Mar

56° / -4.3°

Apr

3013.4° / 1.4°

May

6520.6° / 8.1°

Jun

7925° / 13.1°

Jul

7327.3° / 15.6°

Aug

7926.5° / 14.7°

Sep

7723° / 10.4°

Oct

4316° / 4.9°

Nov

169.1° / -0.1°

Dec

53° / -4.8°

Monthly climate evidence for Geneseo — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	0.1°C	-8.9°C	50 mm	9.4	9 h 21	5	Strong coverage
February	1.5°C	-7.9°C	41 mm	7.6	10 h 28	5	Strong coverage
March	6°C	-4.3°C	53 mm	7.9	11 h 47	5	Strong coverage
April	13.4°C	1.4°C	67 mm	9.4	13 h 19	30	Strong coverage
May	20.6°C	8.1°C	78 mm	9.2	14 h 36	65	Strong coverage
June	25°C	13.1°C	95 mm	9.1	15 h 19	79	Strong coverage
July	27.3°C	15.6°C	103 mm	9.2	15 h 02	73	Strong coverage
August	26.5°C	14.7°C	87 mm	8.4	13 h 55	79	Strong coverage
September	23°C	10.4°C	77 mm	8.5	12 h 26	77	Strong coverage
October	16°C	4.9°C	77 mm	10.2	10 h 58	43	Strong coverage
November	9.1°C	-0.1°C	61 mm	8	9 h 41	16	Strong coverage
December	3°C	-4.8°C	55 mm	9	9 h 03	5	Strong coverage

What has changed

Geneseo runs +0.8°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

+0.7

Feb

+1.5

Mar

+0.9

Apr

+0.4

May

+1.1

Jun

+0.1

Jul

+0.3

Aug

0.0

Sep

+1.1

Oct

+0.8

Nov

+0.3

Dec

+2.1

June daytime highs, 2011–2025. Last recorded: 25.4°C.

Records at MT MORRIS 2W, 1893–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.9°C2 Jan 1897	-30.0°C15 Jan 1957	49 mm8 Jan 1998	111 mm1998 · driest 6 mm in 2022	85
February	23.3°C25 Feb 2017	-28.3°C18 Feb 1979	62 mm26 Feb 1961	136 mm1896 · driest 4 mm in 1987	84
March	28.3°C31 Mar 1977	-21.7°C4 Mar 1950	66 mm14 Mar 1993	100 mm1955 · driest 4 mm in 1898	85
April	33.9°C29 Apr 1990	-12.2°C7 Apr 1982	51 mm19 Apr 1969	151 mm2011 · driest 1 mm in 1899	81
May	35.0°C5 May 1895	-4.4°C12 May 1990	48 mm18 May 1894	172 mm2004 · driest 3 mm in 1899	84
June	37.8°C4 Jun 1895	-0.6°C8 Jun 1894	74 mm26 Jun 1968	232 mm1972 · driest 1 mm in 1899	84
July	38.9°C4 Jul 1897	1.7°C11 Jul 1898	86 mm14 Jul 2010	298 mm1992 · driest 5 mm in 1987	83
August	37.2°C3 Aug 1897	1.7°C15 Aug 1899	94 mm12 Aug 1983	202 mm2011 · driest 1 mm in 1899	84
September	36.7°C3 Sep 1953	-3.9°C21 Sep 1929	74 mm9 Sep 2004	231 mm1977 · driest 4 mm in 1983	84
October	31.1°C5 Oct 1951	-6.7°C31 Oct 1988	108 mm1 Oct 1959	219 mm1955 · driest 6 mm in 1963	84
November	28.9°C8 Nov 1896	-15.6°C25 Nov 1956	51 mm10 Nov 1895	195 mm1985 · driest 1 mm in 2012	83
December	22.2°C4 Dec 1982	-27.2°C30 Dec 1899	41 mm25 Dec 1979	113 mm1977 · driest 7 mm in 1998	85

Typical days per month at MT MORRIS 2W, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	23	1	4
February	0	0	22	<1	3
March	<1	0	21	1	2
April	2	<1	12	2	<1
May	8	2	<1	3	0
June	15	5	0	3	0
July	22	7	0	3	0
August	20	5	0	3	0
September	10	2	<1	2	0
October	2	<1	4	2	<1
November	<1	0	14	2	2
December	0	0	21	1	3

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 85); on 2011–2025 it is September (87). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in MT MORRIS 2W’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%	25%	3%	24%	-3.2–3.2°C
February	<1%	24%	4%	22%	-2.2–5.1°C
March	4%	24%	4%	24%	2.9–9.6°C
April	15%	29%	7%	33%	10.8–16.4°C
May	40%	30%	8%	36%	17.8–23.6°C
June	63%	28%	9%	30%	23.6–27.6°C
July	72%	27%	9%	29%	25.9–29.7°C
August	72%	26%	8%	26%	25.0–28.2°C
September	53%	27%	8%	32%	20.8–25.0°C
October	23%	28%	7%	32%	14.1–18.8°C
November	5%	26%	6%	30%	6.0–12.0°C
December	<1%	28%	4%	29%	-0.8–6.2°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 63-year average. Warmest: 2024. Coolest: 1958.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5118394
NOAA station: USC00305597 · MT MORRIS 2W
Station distance: 10.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 26 usable years
Daylight: Calculated from latitude 42.80°, 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 MT MORRIS 2W is what differs

Perry→Mount Morris→Nunda→Leicester→Retsof→Cuylerville→

Or put two places side by side: Geneseo vs Perry

Best time to visitGeneseo.

June

July

May

The whole year,without the guesswork.

Geneseo runs +0.8°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Geneseo.

The whole year,
without the guesswork.

Geneseo runs +0.8°C
on the 1961–1990 baseline.

Nearby, measured,
and named.