United States · 1991–2020

Best time to visit
Rochester.

June leads for comfortable weather in Rochester: typically 25.1°C by day, 13.8°C at night, with 86 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high25.1°C

Typical low13.8°C

Rain in June86 mm

Comfort

June

June · August · September

82climate match

Beach

July

July · August · June

67climate match

Outdoors

May

May · September · October

82climate match

The weakest month is January, scoring 5 against June’s 82 — days reach only 0.4°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

50.4° / -7.5°

Feb

51.4° / -7.2°

Mar

56.1° / -3.2°

Apr

3013.3° / 2.5°

May

6520.4° / 8.6°

Jun

8225.1° / 13.8°

Jul

7327.6° / 16.4°

Aug

7926.6° / 15.7°

Sep

7922.8° / 11.7°

Oct

4315.8° / 6°

Nov

139.1° / 0.7°

Dec

53.2° / -3.9°

Monthly climate evidence for Rochester — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 25 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	0.4°C	-7.5°C	65 mm	13.1	4.1°C	9 h 19	5	Strong coverage
February	1.4°C	-7.2°C	54 mm	10.8	2.8°C	10 h 27	5	Strong coverage
March	6.1°C	-3.2°C	63 mm	10.5	2.5°C	11 h 47	5	Strong coverage
April	13.3°C	2.5°C	76 mm	10.6	3.4°C	13 h 20	30	Strong coverage
May	20.4°C	8.6°C	73 mm	9.4	5.7°C	14 h 38	65	Strong coverage
June	25.1°C	13.8°C	86 mm	8.7	13.2°C	15 h 21	82	Strong coverage
July	27.6°C	16.4°C	91 mm	8.8	20.4°C	15 h 04	73	Strong coverage
August	26.6°C	15.7°C	84 mm	8	22.1°C	13 h 57	79	Strong coverage
September	22.8°C	11.7°C	81 mm	8.4	19.7°C	12 h 27	79	Strong coverage
October	15.8°C	6°C	82 mm	10.6	14.2°C	10 h 57	43	Strong coverage
November	9.1°C	0.7°C	70 mm	10.6	9.3°C	9 h 39	13	Strong coverage
December	3.2°C	-3.9°C	68 mm	12.6	6.3°C	9 h 00	5	Strong coverage

What has changed

Rochester runs +1.0°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

+1.4

Feb

+1.9

Mar

+1.3

Apr

+0.1

May

+1.0

Jun

+0.4

Jul

+0.4

Aug

+0.5

Sep

+1.3

Oct

+0.8

Nov

+0.6

Dec

+2.1

June daytime highs, 2011–2025. Last recorded: 26.1°C.

Records at ROCHESTER GTR INTL, 1926–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.3°C25 Jan 1950	-27.2°C16 Jan 1994	45 mm31 Jan 2002	147 mm1978 · driest 18 mm in 1988	101
February	22.8°C27 Feb 2024	-30.0°C9 Feb 1934	55 mm7 Feb 1942	129 mm1950 · driest 17 mm in 2024	101
March	28.9°C26 Mar 1945	-22.7°C6 Mar 2014	56 mm3 Mar 1942	167 mm1936 · driest 12 mm in 1958	101
April	33.9°C28 Apr 1990	-10.6°C7 Apr 1982	49 mm19 Apr 1943	148 mm2011 · driest 30 mm in 1995	101
May	34.4°C14 May 1974	-3.3°C2 May 1979	88 mm16 May 1974	168 mm1974 · driest 6 mm in 2007	101
June	37.8°C21 Jun 1953	1.7°C8 Jun 1949	80 mm18 Jun 2025	181 mm1998 · driest 6 mm in 1963	101
July	38.9°C9 Jul 1936	5.6°C9 Jul 1963	85 mm12 Jul 2006	246 mm1947 · driest 11 mm in 1933	101
August	37.2°C26 Aug 1948	2.2°C30 Aug 1965	84 mm10 Aug 1938	152 mm1984 · driest 19 mm in 1951	100
September	37.2°C3 Sep 1953	-2.2°C28 Sep 1947	88 mm14 Sep 1979	160 mm1977 · driest 7 mm in 1960	100
October	32.8°C5 Oct 1951	-6.7°C20 Oct 1972	75 mm25 Oct 1980	200 mm1955 · driest 4 mm in 1938	100
November	27.2°C5 Nov 2024	-15.5°C23 Nov 2018	53 mm29 Nov 1945	181 mm1927 · driest 11 mm in 1976	100
December	22.2°C3 Dec 1982	-26.7°C20 Dec 1942	38 mm25 Dec 1978	128 mm1944 · driest 16 mm in 1958	100

Typical days per month at ROCHESTER GTR INTL, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	2	18
February	0	0	26	1	15
March	<1	0	23	2	10
April	2	<1	10	2	3
May	8	2	<1	2	<1
June	17	5	0	3	0
July	24	8	0	3	0
August	22	6	0	3	0
September	10	2	<1	2	0
October	2	<1	3	3	<1
November	<1	0	15	2	6
December	0	0	25	2	14

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 87); on 2011–2025 it is September (90). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in ROCHESTER GTR INTL’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%	40%	5%	56%	-3.1–3.3°C
February	<1%	38%	5%	52%	-2.3–4.2°C
March	3%	34%	6%	48%	2.4–9.7°C
April	12%	35%	7%	45%	10.0–15.8°C
May	37%	30%	7%	37%	17.4–22.6°C
June	64%	28%	9%	31%	23.6–26.9°C
July	73%	26%	8%	27%	26.0–29.6°C
August	73%	25%	9%	25%	24.8–28.4°C
September	53%	27%	7%	32%	20.5–24.7°C
October	23%	29%	8%	37%	13.9–18.2°C
November	4%	35%	7%	49%	6.3–11.6°C
December	<1%	40%	6%	57%	-0.8–5.5°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.

1926Each stripe is one year’s mean temperature against the 100-year average. Warmest: 2024. Coolest: 1926.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5134086
NOAA station: USW00014768 · ROCHESTER GTR INTL
Station distance: 6.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 43.15°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 25 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 ROCHESTER GTR INTL is what differs

Irondequoit→Henrietta→Brighton→Gates-North Gates→Greece→West Henrietta→

Or put two places side by side: Rochester vs Irondequoit

Best time to visitRochester.

June

July

May

The whole year,without the guesswork.

Rochester runs +1.0°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Rochester.

The whole year,
without the guesswork.

Rochester runs +1.0°C
on the 1961–1990 baseline.

Nearby, measured,
and named.