United States · 1991–2020

Best time to visit
Mill City.

July leads for comfortable weather in Mill City: typically 27.1°C by day, 11.9°C at night, with 19 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high27.1°C

Typical low11.9°C

Rain in July19 mm

Comfort

July

July · August · September

84climate match

Beach

August

August · July · September

71climate match

Outdoors

September

September · June · July

79climate match

The weakest month is January, scoring 5 against July’s 84 — days reach only 6.5°C, 17° below the 24°C the score treats as ideal, and 333 mm of rain falls.

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

56.5° / 0.9°

Feb

58.5° / 1.2°

Mar

511.2° / 2.1°

Apr

914.5° / 3.9°

May

4218.8° / 6.8°

Jun

6821.9° / 9.3°

Jul

8427.1° / 11.9°

Aug

8327.5° / 12.3°

Sep

8323.6° / 10.2°

Oct

2816.2° / 6.8°

Nov

59.9° / 3.4°

Dec

56.4° / 1.2°

Monthly climate evidence for Mill City — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.5°C	0.9°C	333 mm	18.6	9 h 09	5	Strong coverage
February	8.5°C	1.2°C	258 mm	16.3	10 h 21	5	Strong coverage
March	11.2°C	2.1°C	272 mm	18.7	11 h 46	5	Strong coverage
April	14.5°C	3.9°C	219 mm	18	13 h 25	9	Strong coverage
May	18.8°C	6.8°C	152 mm	14	14 h 48	42	Strong coverage
June	21.9°C	9.3°C	99 mm	9.3	15 h 34	68	Strong coverage
July	27.1°C	11.9°C	19 mm	3.2	15 h 15	84	Strong coverage
August	27.5°C	12.3°C	23 mm	3.1	14 h 03	83	Strong coverage
September	23.6°C	10.2°C	69 mm	6	12 h 28	83	Strong coverage
October	16.2°C	6.8°C	202 mm	12.3	10 h 53	28	Strong coverage
November	9.9°C	3.4°C	340 mm	17.9	9 h 30	5	Strong coverage
December	6.4°C	1.2°C	390 mm	18.8	8 h 49	5	Strong coverage

What has changed

Mill City runs +0.4°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

+0.1

Feb

-1.5

Mar

-0.6

Apr

+0.5

May

+1.0

Jun

+0.9

Jul

+2.1

Aug

+2.2

Sep

+0.6

Oct

-0.8

Nov

-0.1

Dec

0.0

July daytime highs, 2011–2025. Last recorded: 28.1°C.

Records at DETROIT DAM, 1954–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.4°C21 Jan 1961	-12.8°C27 Jan 1957	130 mm21 Jan 1972	701 mm2006 · driest 11 mm in 1985	71
February	23.9°C29 Feb 1968	-13.9°C3 Feb 1989	149 mm14 Feb 2014	589 mm2014 · driest 63 mm in 1993	71
March	24.4°C20 Mar 2026	-8.9°C1 Mar 2011	92 mm2 Mar 1972	537 mm2014 · driest 45 mm in 1965	72
April	30.6°C27 Apr 2004	-4.4°C7 Apr 2011	141 mm28 Apr 1990	368 mm1993 · driest 35 mm in 2021	72
May	40.0°C29 May 1983	-2.8°C7 May 2002	64 mm15 May 2001	400 mm2022 · driest 25 mm in 1992	72
June	43.9°C29 Jun 2021	2.2°C21 Jun 1991	68 mm8 Jun 1981	238 mm1984 · driest 16 mm in 1965	71
July	40.0°C24 Jul 2004	4.4°C3 Jul 2011	40 mm18 Jul 2019	128 mm1983 · driest 0 mm in 2017	72
August	40.6°C11 Aug 1970	4.4°C31 Aug 1989	35 mm21 Aug 2008	200 mm1968 · driest 0 mm in 2011	70
September	41.7°C3 Sep 1988	1.7°C3 Sep 1985	85 mm30 Sep 2013	309 mm2013 · driest 0 mm in 1993	70
October	33.3°C2 Oct 1987	-3.9°C30 Oct 2002	104 mm16 Oct 2016	746 mm2016 · driest 2 mm in 1987	71
November	23.3°C15 Nov 1995	-11.7°C15 Nov 1955	125 mm24 Nov 1960	737 mm1973 · driest 71 mm in 2019	69
December	18.9°C12 Dec 1955	-13.9°C23 Dec 1990	144 mm19 Dec 2025	842 mm1996 · driest 91 mm in 1976	72

Typical days per month at DETROIT DAM, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	12	11	2
February	0	0	10	8	1
March	0	0	7	10	<1
April	1	<1	3	8	<1
May	5	<1	<1	6	0
June	9	3	0	4	0
July	22	9	0	<1	0
August	23	10	0	<1	0
September	14	4	0	2	0
October	1	0	<1	7	0
November	0	0	5	11	<1
December	0	0	10	12	1

How often, not how much — every day in DETROIT DAM’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%	59%	33%	74%	4.4–8.2°C
February	<1%	59%	30%	77%	6.1–10.5°C
March	4%	60%	30%	80%	8.5–13.5°C
April	15%	55%	24%	73%	11.1–16.4°C
May	34%	43%	17%	55%	15.4–20.3°C
June	56%	29%	11%	34%	19.0–24.3°C
July	84%	10%	2%	8%	23.4–29.0°C
August	84%	12%	4%	13%	23.6–28.6°C
September	64%	23%	9%	27%	20.3–25.9°C
October	21%	39%	21%	55%	14.3–18.5°C
November	<1%	60%	35%	78%	7.9–11.4°C
December	0%	61%	36%	79%	4.8–8.2°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.

1955Each stripe is one year’s mean temperature against the 65-year average. Warmest: 2015. Coolest: 2011.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5740602
NOAA station: USC00352292 · DETROIT DAM
Station distance: 18 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 44.75°, 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 DETROIT DAM is what differs

Gates→Detroit→Idanha→Elkhorn→Elkhorn Woods→Niagara→

Or put two places side by side: Mill City vs Gates

Best time to visitMill City.