United States · 1991–2020

Best time to visit
Rosenhayn.

September leads for comfortable weather in Rosenhayn: typically 26.2°C by day, 15.3°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.2°C

Typical low15.3°C

Rain in September100 mm

Comfort

September

September · May · June

80climate match

Beach

July

July · August · June

73climate match

Outdoors

October

October · May · April

81climate match

The weakest month is January, scoring 5 against September’s 80 — days reach only 5.5°C, 18° 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

55.5° / -3.4°

Feb

56.9° / -2.5°

Mar

1611.2° / 1.2°

Apr

5117.7° / 6.4°

May

7823° / 11.8°

Jun

6727.9° / 17.2°

Jul

5330.5° / 20.1°

Aug

5829.5° / 19°

Sep

8026.2° / 15.3°

Oct

6119.6° / 8.8°

Nov

3513.4° / 3.6°

Dec

58.1° / -0.6°

Monthly climate evidence for Rosenhayn — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 39 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	5.5°C	-3.4°C	88 mm	8.3	4.0°C	9 h 40	5	Strong coverage
February	6.9°C	-2.5°C	73 mm	7.6	2.9°C	10 h 39	5	Strong coverage
March	11.2°C	1.2°C	115 mm	9.2	5.0°C	11 h 49	16	Strong coverage
April	17.7°C	6.4°C	93 mm	8.6	9.1°C	13 h 11	51	Strong coverage
May	23°C	11.8°C	89 mm	8.8	14.1°C	14 h 19	78	Strong coverage
June	27.9°C	17.2°C	111 mm	8.6	19.6°C	14 h 56	67	Strong coverage
July	30.5°C	20.1°C	117 mm	7.9	23.2°C	14 h 42	53	Strong coverage
August	29.5°C	19°C	125 mm	7.3	24.2°C	13 h 43	58	Strong coverage
September	26.2°C	15.3°C	100 mm	6.7	22.7°C	12 h 24	80	Strong coverage
October	19.6°C	8.8°C	99 mm	7.2	18.1°C	11 h 05	61	Strong coverage
November	13.4°C	3.6°C	81 mm	7.1	12.1°C	9 h 57	35	Strong coverage
December	8.1°C	-0.6°C	111 mm	8.7	7.4°C	9 h 24	5	Strong coverage

What has changed

Rosenhayn runs +1.1°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

+1.2

Feb

+2.1

Mar

+0.9

Apr

+1.5

May

+0.9

Jun

+0.7

Jul

+1.4

Aug

+0.4

Sep

+1.0

Oct

+1.0

Nov

+0.4

Dec

+1.9

September daytime highs, 2011–2025. Last recorded: 25.9°C.

Records at SEABROOK FARMS, 1963–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.1°C28 Jan 1974	-31.1°C22 Jan 1985	56 mm26 Jan 1986	184 mm1999 · driest 9 mm in 2025	55
February	24.4°C22 Feb 2018	-20.0°C9 Feb 1967	58 mm12 Feb 1988	171 mm2018 · driest 6 mm in 1978	55
March	30.0°C31 Mar 1998	-15.6°C7 Mar 2015	121 mm22 Mar 2000	205 mm1993 · driest 9 mm in 2006	55
April	35.0°C18 Apr 2002	-5.6°C1 Apr 1965	113 mm16 Apr 2007	200 mm2007 · driest 25 mm in 1963	57
May	35.0°C31 May 1991	-1.1°C11 May 1966	78 mm11 May 1990	206 mm1978 · driest 16 mm in 2023	57
June	37.8°C23 Jun 1988	5.0°C11 Jun 1972	103 mm13 Jun 1968	300 mm2013 · driest 9 mm in 1966	57
July	39.4°C7 Jul 2010	9.4°C5 Jul 1971	134 mm14 Jul 1975	304 mm1975 · driest 25 mm in 2007	58
August	37.8°C16 Aug 1988	6.7°C30 Aug 1986	270 mm15 Aug 2011	617 mm2011 · driest 24 mm in 2008	58
September	36.7°C1 Sep 1973	2.2°C29 Sep 1978	81 mm16 Sep 1999	254 mm1999 · driest 10 mm in 2019	58
October	34.4°C3 Oct 2019	-5.0°C24 Oct 1969	99 mm30 Oct 2012	243 mm2012 · driest 1 mm in 2024	57
November	27.8°C7 Nov 2024	-9.4°C30 Nov 1976	76 mm12 Nov 2020	205 mm2018 · driest 13 mm in 1976	55
December	23.3°C8 Dec 1998	-16.1°C2 Dec 1967	88 mm25 Dec 1986	280 mm2009 · driest 17 mm in 2021	54

Typical days per month at SEABROOK FARMS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	23	3	2
February	0	0	20	3	2
March	<1	0	14	4	1
April	4	<1	2	3	<1
May	11	3	0	3	0
June	24	11	0	4	0
July	29	19	0	4	0
August	29	15	0	4	0
September	20	5	0	3	0
October	4	<1	<1	3	0
November	<1	0	8	3	<1
December	0	0	18	4	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 86); on 2011–2025 it is May (84). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in SEABROOK FARMS’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%	27%	9%	30%	1.8–8.2°C
February	1%	26%	9%	28%	3.4–9.8°C
March	7%	28%	12%	34%	8.2–14.0°C
April	26%	28%	10%	30%	15.6–19.6°C
May	56%	28%	10%	33%	20.7–24.6°C
June	73%	26%	11%	29%	26.0–29.2°C
July	74%	26%	12%	26%	28.4–31.7°C
August	75%	24%	11%	24%	27.7–30.6°C
September	72%	23%	10%	24%	24.5–27.6°C
October	39%	22%	9%	20%	17.8–21.5°C
November	10%	24%	9%	22%	11.1–16.0°C
December	1%	26%	11%	28%	4.9–10.4°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.

1965Each stripe is one year’s mean temperature against the 50-year average. Warmest: 2012. Coolest: 1967.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4503816
NOAA station: USC00287936 · SEABROOK FARMS
Station distance: 7.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 39.48°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 39 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 SEABROOK FARMS is what differs

Bridgeton→Seabrook Farms→Alloway→Fairton→Quinton→Shiloh→

Or put two places side by side: Rosenhayn vs Bridgeton

Best time to visitRosenhayn.