United States · 1991–2020

Best time to visit
Cannon Falls.

September leads for comfortable weather in Cannon Falls: typically 22.7°C by day, 11.2°C at night, with 92 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high22.7°C

Typical low11.2°C

Rain in September92 mm

Comfort

September

September · June · August

77climate match

Beach

July

July · August · June

69climate match

Outdoors

May

May · September · October

77climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only -4.8°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

5-4.8° / -14.5°

Feb

5-2.1° / -12.7°

Mar

54.9° / -5.4°

Apr

3013.1° / 2.2°

May

6020.2° / 8.9°

Jun

7425.5° / 14.5°

Jul

6928° / 17°

Aug

7426.8° / 15.6°

Sep

7722.7° / 11.2°

Oct

4214.7° / 4°

Nov

55.6° / -3.2°

Dec

5-1.7° / -10°

Monthly climate evidence for Cannon Falls — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-4.8°C	-14.5°C	20 mm	4.2	9 h 11	5	Strong coverage
February	-2.1°C	-12.7°C	22 mm	3.9	10 h 22	5	Strong coverage
March	4.9°C	-5.4°C	43 mm	5.9	11 h 46	5	Strong coverage
April	13.1°C	2.2°C	73 mm	8.6	13 h 24	30	Strong coverage
May	20.2°C	8.9°C	103 mm	10.5	14 h 46	60	Strong coverage
June	25.5°C	14.5°C	132 mm	10.5	15 h 32	74	Strong coverage
July	28°C	17°C	99 mm	8.4	15 h 14	69	Strong coverage
August	26.8°C	15.6°C	114 mm	8.1	14 h 02	74	Strong coverage
September	22.7°C	11.2°C	92 mm	7.5	12 h 28	77	Strong coverage
October	14.7°C	4°C	63 mm	7.4	10 h 54	42	Strong coverage
November	5.6°C	-3.2°C	40 mm	5.2	9 h 31	5	Strong coverage
December	-1.7°C	-10°C	26 mm	4.6	8 h 51	5	Strong coverage

Records at RED WING DAM 3, 1949–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	12.8°C11 Jan 2012	-37.8°C19 Jan 1994	24 mm18 Jan 1996	58 mm2023 · driest 2 mm in 2003	40
February	18.9°C27 Feb 2024	-37.8°C1 Feb 1996	37 mm29 Feb 2012	81 mm2023 · driest 3 mm in 1996	38
March	27.2°C19 Mar 2012	-30.6°C4 Mar 2014	51 mm3 Mar 2004	108 mm1998 · driest 6 mm in 1994	40
April	31.7°C16 Apr 2002	-13.9°C5 Apr 1995	55 mm1 Apr 1998	153 mm2013 · driest 17 mm in 1997	39
May	37.2°C29 May 2018	-3.3°C4 May 2005	81 mm16 May 1968	184 mm2017 · driest 18 mm in 1992	41
June	38.3°C8 Jun 2011	3.9°C21 Jun 1992	162 mm15 Jun 2012	278 mm2012 · driest 31 mm in 2006	37
July	39.4°C14 Jul 1995	7.8°C4 Jul 1972	116 mm20 Jul 2017	266 mm1997 · driest 23 mm in 2007	43
August	37.8°C1 Aug 2006	5.0°C22 Aug 2004	70 mm11 Aug 2016	264 mm2007 · driest 21 mm in 2003	37
September	36.1°C4 Sep 2023	-0.6°C15 Sep 2007	180 mm16 Sep 1992	238 mm1992 · driest 13 mm in 2024	38
October	33.3°C4 Oct 1997	-10.0°C28 Oct 2020	50 mm7 Oct 1992	164 mm2009 · driest 12 mm in 2024	38
November	25.6°C9 Nov 1999	-23.3°C8 Nov 1991	52 mm12 Nov 2015	118 mm2000 · driest 1 mm in 2023	39
December	18.9°C2 Dec 1998	-31.7°C26 Dec 2000	30 mm28 Dec 2018	76 mm2015 · driest 4 mm in 1997	39

Typical days per month at RED WING DAM 3, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	31	<1	5
February	0	0	27	<1	4
March	<1	0	25	1	2
April	1	<1	10	3	<1
May	7	2	<1	4	0
June	18	5	0	4	0
July	26	10	0	3	0
August	22	6	0	4	0
September	12	3	<1	3	0
October	2	<1	7	2	<1
November	0	0	22	1	1
December	0	0	29	<1	4

How often, not how much — every day in RED WING DAM 3’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%	15%	1%	9%	-7.6–-1.8°C
February	0%	13%	2%	7%	-6.5–2.3°C
March	3%	21%	4%	20%	1.8–9.2°C
April	13%	27%	8%	32%	9.8–16.1°C
May	40%	32%	10%	41%	18.6–23.0°C
June	60%	33%	12%	42%	24.3–27.4°C
July	72%	27%	11%	28%	26.3–30.2°C
August	73%	26%	11%	26%	24.8–28.2°C
September	56%	25%	9%	27%	20.7–24.9°C
October	20%	21%	6%	21%	11.8–18.0°C
November	3%	18%	4%	15%	1.3–10.0°C
December	0%	16%	2%	10%	-5.0–1.6°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.

1992Each stripe is one year’s mean temperature against the 29-year average. Warmest: 2012. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5020281
NOAA station: USC00216822 · RED WING DAM 3
Station distance: 26.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 44.51°, 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 RED WING DAM 3 is what differs

Red Wing→Bay City→Hager City→Frontenac→Diamond Bluff→Miesville→

Or put two places side by side: Cannon Falls vs Red Wing

Best time to visitCannon Falls.

September

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Cannon Falls.

The whole year,
without the guesswork.

Nearby, measured,
and named.