United States · 1991–2020

Best time to visit
Rochester.

August leads for comfortable weather in Rochester: typically 26.4°C by day, 14.3°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high26.4°C

Typical low14.3°C

Rain in August90 mm

Comfort

August

August · July · June

79climate match

Beach

July

July · August · June

64climate match

Outdoors

September

September · May · October

77climate match

The weakest month is January, scoring 5 against August’s 79 — days reach only -2.3°C, 26° 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

5-2.3° / -11.3°

Feb

5-0.3° / -9.7°

Mar

56° / -4.5°

Apr

2613.2° / 1.1°

May

5519.6° / 7°

Jun

7625.1° / 12.7°

Jul

7727.3° / 15.2°

Aug

7926.4° / 14.3°

Sep

7522.7° / 9.8°

Oct

4315.5° / 3.7°

Nov

77.4° / -2.4°

Dec

50.5° / -7.7°

Monthly climate evidence for Rochester — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 31 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-2.3°C	-11.3°C	47 mm	6.9	3.4°C	9 h 21	5	Strong coverage
February	-0.3°C	-9.7°C	44 mm	5.9	2.2°C	10 h 28	5	Strong coverage
March	6°C	-4.5°C	53 mm	7	2.1°C	11 h 47	5	Strong coverage
April	13.2°C	1.1°C	92 mm	9.4	3.4°C	13 h 19	26	Strong coverage
May	19.6°C	7°C	101 mm	10.3	6.1°C	14 h 36	55	Strong coverage
June	25.1°C	12.7°C	114 mm	9.2	12.7°C	15 h 18	76	Strong coverage
July	27.3°C	15.2°C	92 mm	7.4	19.9°C	15 h 02	77	Strong coverage
August	26.4°C	14.3°C	90 mm	8	21.6°C	13 h 55	79	Strong coverage
September	22.7°C	9.8°C	87 mm	7.3	19.2°C	12 h 26	75	Strong coverage
October	15.5°C	3.7°C	70 mm	7.4	13.6°C	10 h 58	43	Strong coverage
November	7.4°C	-2.4°C	60 mm	6.6	8.4°C	9 h 41	7	Strong coverage
December	0.5°C	-7.7°C	49 mm	7	5.3°C	9 h 03	5	Strong coverage

What has changed

Rochester runs +0.1°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

+0.9

Feb

+0.2

Mar

+1.2

Apr

-0.6

May

-0.5

Jun

-0.2

Jul

-0.5

Aug

-0.5

Sep

+0.4

Oct

-0.1

Nov

-0.4

Dec

+1.5

August daytime highs, 2011–2025. Last recorded: 25.7°C.

Records at BURLINGTON WWTP, 1951–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	15.6°C25 Jan 1967	-32.8°C21 Jan 1985	44 mm7 Jan 1962	118 mm1960 · driest 2 mm in 1961	74
February	22.8°C28 Feb 2024	-32.8°C4 Feb 1996	45 mm9 Feb 2001	125 mm2008 · driest 0 mm in 1987	75
March	27.8°C22 Mar 2012	-26.1°C1 Mar 2015	75 mm5 Mar 1976	177 mm1976 · driest 8 mm in 1968	74
April	32.2°C23 Apr 1980	-16.1°C7 Apr 1982	64 mm18 Apr 2013	256 mm2026 · driest 25 mm in 2021	74
May	34.4°C29 May 1991	-5.6°C10 May 1966	96 mm13 May 2014	309 mm2004 · driest 19 mm in 1992	73
June	38.9°C26 Jun 1988	0.0°C2 Jun 1964	81 mm12 Jun 1999	275 mm1967 · driest 22 mm in 1987	73
July	40.6°C14 Jul 1995	3.9°C5 Jul 1972	126 mm12 Jul 2017	354 mm2017 · driest 26 mm in 2004	72
August	38.9°C2 Aug 1988	1.7°C30 Aug 1999	138 mm15 Aug 2023	291 mm2007 · driest 9 mm in 1970	74
September	38.3°C3 Sep 1953	-5.0°C23 Sep 1974	117 mm18 Sep 2015	239 mm1970 · driest 2 mm in 1979	73
October	32.2°C1 Oct 1971	-9.4°C29 Oct 1952	71 mm22 Oct 1965	167 mm2018 · driest 4 mm in 1952	75
November	24.4°C1 Nov 1974	-22.8°C29 Nov 1976	55 mm17 Nov 1952	151 mm1985 · driest 8 mm in 1953	75
December	19.4°C6 Dec 2001	-27.8°C21 Dec 1989	56 mm3 Dec 1982	142 mm2015 · driest 4 mm in 1955	73

Typical days per month at BURLINGTON WWTP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	1	6
February	0	0	27	1	5
March	<1	0	25	2	2
April	1	<1	13	3	<1
May	7	1	2	3	0
June	16	5	0	4	0
July	23	8	0	3	0
August	21	5	0	3	0
September	11	2	<1	3	0
October	2	<1	8	2	0
November	0	0	20	2	1
December	0	0	28	2	4

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 80); on 2011–2025 it is August (84). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BURLINGTON WWTP’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%	19%	4%	17%	-6.2–0.3°C
February	0%	19%	3%	16%	-3.8–3.7°C
March	2%	23%	6%	27%	2.8–9.0°C
April	13%	31%	10%	38%	10.8–16.0°C
May	38%	29%	9%	34%	17.4–22.7°C
June	63%	30%	11%	34%	23.6–27.6°C
July	74%	25%	11%	25%	25.9–29.6°C
August	73%	25%	10%	24%	24.9–28.8°C
September	57%	24%	9%	27%	21.0–24.8°C
October	22%	23%	7%	26%	13.3–18.6°C
November	3%	22%	6%	21%	4.5–10.6°C
December	0%	21%	5%	20%	-2.9–3.6°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.

1953Each stripe is one year’s mean temperature against the 64-year average. Warmest: 1998. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5269196
NOAA station: USC00471205 · BURLINGTON WWTP
Station distance: 10.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 42.74°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 31 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 BURLINGTON WWTP is what differs

Burlington→Waterford→East Troy→Bohners Lake→Browns Lake→Potter Lake→

Or put two places side by side: Rochester vs Burlington

Best time to visitRochester.

August

July

September

The whole year,without the guesswork.

Rochester runs +0.1°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Rochester.

The whole year,
without the guesswork.

Rochester runs +0.1°C
on the 1961–1990 baseline.

Nearby, measured,
and named.