United States · 1991–2020

Best time to visit
Bloomfield Hills.

September leads for comfortable weather in Bloomfield Hills: typically 23.1°C by day, 12.2°C at night, with 74 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23.1°C

Typical low12.2°C

Rain in September74 mm

Comfort

September

September · June · August

83climate match

Beach

July

July · August · June

73climate match

Outdoors

May

May · September · October

76climate match

The weakest month is January, scoring 5 against September’s 83 — days reach only -0.5°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

5-0.5° / -8.1°

Feb

50.9° / -7.6°

Mar

56.7° / -3.3°

Apr

3313.7° / 2.3°

May

6521.1° / 9°

Jun

8226° / 14.6°

Jul

7328° / 17°

Aug

7827° / 16.2°

Sep

8323.1° / 12.2°

Oct

4616° / 5.9°

Nov

77.2° / -0.5°

Dec

52.8° / -3.7°

Monthly climate evidence for Bloomfield Hills — 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	-0.5°C	-8.1°C	55 mm	8.5	1.1°C	9 h 22	5	Good coverage
February	0.9°C	-7.6°C	45 mm	7.3	0.4°C	10 h 29	5	Good coverage
March	6.7°C	-3.3°C	52 mm	6.9	1.3°C	11 h 48	5	Good coverage
April	13.7°C	2.3°C	70 mm	9.1	5.0°C	13 h 19	33	Good coverage
May	21.1°C	9°C	98 mm	10	11.2°C	14 h 35	65	Good coverage
June	26°C	14.6°C	80 mm	8.2	17.7°C	15 h 17	82	Good coverage
July	28°C	17°C	78 mm	7.7	22.1°C	15 h 01	73	Good coverage
August	27°C	16.2°C	79 mm	7.6	22.9°C	13 h 54	78	Good coverage
September	23.1°C	12.2°C	74 mm	7.2	20.1°C	12 h 26	83	Good coverage
October	16°C	5.9°C	73 mm	9.9	14.0°C	10 h 58	46	Good coverage
November	7.2°C	-0.5°C	72 mm	7.9	8.4°C	9 h 42	7	Good coverage
December	2.8°C	-3.7°C	58 mm	8.7	4.1°C	9 h 04	5	Good coverage

What has changed

Bloomfield Hills 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

+1.2

Feb

+0.4

Mar

+0.7

Apr

-0.6

May

0.0

Jun

0.0

Jul

-0.3

Aug

0.0

Sep

+0.5

Oct

+0.5

Nov

-0.1

Dec

+2.2

September daytime highs, 2012–2025. Last recorded: 25.9°C.

Records at PONTIAC WWTP, 1894–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.9°C25 Jan 1950	-29.4°C19 Jan 1994	36 mm29 Jan 1909	124 mm2024 · driest 4 mm in 1961	110
February	22.2°C28 Feb 2024	-30.0°C5 Feb 1918	89 mm12 Feb 1938	176 mm1908 · driest 3 mm in 1969	110
March	28.9°C23 Mar 2012	-22.2°C11 Mar 1895	47 mm5 Mar 1974	120 mm1974 · driest 1 mm in 1896	110
April	31.7°C25 Apr 1925	-14.4°C1 Apr 1923	102 mm25 Apr 1914	174 mm1947 · driest 5 mm in 1997	109
May	35.0°C27 May 1911	-5.0°C3 May 1909	65 mm10 May 1948	199 mm1945 · driest 17 mm in 1958	110
June	38.9°C25 Jun 1988	1.1°C10 Jun 1972	119 mm26 Jun 1968	223 mm2021 · driest 18 mm in 1988	108
July	40.0°C24 Jul 1934	5.0°C5 Jul 1972	86 mm23 Jul 1988	188 mm1896 · driest 12 mm in 1930	109
August	38.9°C6 Aug 1918	3.3°C31 Aug 1915	72 mm10 Aug 1896	202 mm1985 · driest 5 mm in 1927	106
September	36.7°C1 Sep 1953	-1.7°C23 Sep 1896	71 mm28 Sep 1993	190 mm1993 · driest 7 mm in 1969	110
October	32.2°C3 Oct 1953	-9.4°C21 Oct 1895	121 mm1 Oct 1981	245 mm1954 · driest 3 mm in 1963	109
November	26.1°C1 Nov 1950	-16.7°C30 Nov 1958	57 mm14 Nov 1997	149 mm1997 · driest 10 mm in 1917	110
December	17.8°C8 Dec 1966	-24.4°C28 Dec 1924	59 mm25 Dec 1965	145 mm1895 · driest 8 mm in 1958	110

Typical days per month at PONTIAC WWTP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	1	5
February	0	0	25	<1	4
March	<1	0	23	2	2
April	<1	0	10	2	<1
May	8	2	<1	3	0
June	19	6	0	2	0
July	25	9	0	3	0
August	22	6	0	3	0
September	11	2	<1	3	0
October	2	0	3	3	<1
November	0	0	17	3	1
December	0	0	24	2	4

How often, not how much — every day in PONTIAC 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%	24%	4%	23%	-4.1–2.4°C
February	0%	24%	5%	24%	-3.3–3.4°C
March	4%	24%	6%	27%	2.6–10.5°C
April	15%	29%	8%	33%	11.3–16.9°C
May	44%	29%	10%	34%	18.3–23.8°C
June	68%	27%	10%	28%	23.6–28.0°C
July	76%	24%	8%	23%	26.7–30.6°C
August	75%	23%	8%	22%	25.6–29.2°C
September	59%	24%	8%	25%	21.6–25.5°C
October	24%	25%	7%	27%	13.7–19.3°C
November	2%	26%	7%	28%	5.2–10.8°C
December	0%	26%	6%	28%	-1.8–4.4°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.

1895Each stripe is one year’s mean temperature against the 96-year average. Warmest: 2024. Coolest: 1917.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4986429
NOAA station: USC00206658 · PONTIAC WWTP
Station distance: 6.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 42.58°, 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 PONTIAC WWTP is what differs

Troy→Shelby→Rochester Hills→Pontiac→Auburn Hills→Birmingham→

Or put two places side by side: Bloomfield Hills vs Troy

Best time to visitBloomfield Hills.

September

July

May

The whole year,without the guesswork.

Bloomfield Hills runs +0.4°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Bloomfield Hills.

The whole year,
without the guesswork.

Bloomfield Hills runs +0.4°C
on the 1961–1990 baseline.

Nearby, measured,
and named.