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Germany · 1991–2020

Best time to visit
Frechen.

August leads for comfortable weather in Frechen: typically 24.5°C by day, 15.3°C at night, with 81 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high24.5°C

Typical low15.3°C

Rain in August81 mm

Comfort

August

August · July · June

85climate match

Beach

July

July · August · June

57climate match

Outdoors

May

May · September · April

86climate match

The weakest month is January, scoring 5 against August’s 85 — days reach only 6.3°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

56.3° / 1.6°

Feb

127.4° / 1.8°

Mar

3011.5° / 4°

Apr

5316.1° / 6.9°

May

6819.8° / 10.4°

Jun

8122.8° / 13.6°

Jul

8225° / 15.7°

Aug

8524.5° / 15.3°

Sep

7220.5° / 12.1°

Oct

4915.3° / 8.7°

Nov

2410.2° / 5.2°

Dec

66.9° / 2.5°

Monthly climate evidence for Frechen — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.3°C	1.6°C	64 mm	12.8	8 h 23	5	Strong coverage
February	7.4°C	1.8°C	56 mm	10.8	9 h 55	12	Strong coverage
March	11.5°C	4°C	53 mm	10.4	11 h 42	30	Strong coverage
April	16.1°C	6.9°C	48 mm	8.6	13 h 44	53	Strong coverage
May	19.8°C	10.4°C	59 mm	9.7	15 h 30	68	Strong coverage
June	22.8°C	13.6°C	76 mm	10.1	16 h 30	81	Strong coverage
July	25°C	15.7°C	81 mm	10.8	16 h 06	82	Strong coverage
August	24.5°C	15.3°C	81 mm	10.4	14 h 33	85	Strong coverage
September	20.5°C	12.1°C	67 mm	10.3	12 h 33	72	Strong coverage
October	15.3°C	8.7°C	65 mm	10.6	10 h 36	49	Strong coverage
November	10.2°C	5.2°C	68 mm	12.1	8 h 51	24	Strong coverage
December	6.9°C	2.5°C	72 mm	13.4	7 h 57	6	Strong coverage

What has changed

Frechen runs +2.1°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

+1.8

Feb

+2.0

Mar

+2.6

Apr

+2.6

May

+2.0

Jun

+2.8

Jul

+2.4

Aug

+2.4

Sep

+1.9

Oct

+1.2

Nov

+1.7

Dec

+2.3

August daytime highs, 2011–2024. Last recorded: 26.9°C.

Records at KOLN-STAMMHEIM, 1945–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.3°C5 Jan 1999	-19.0°C18 Jan 1963	29 mm28 Jan 2021	120 mm1995 · driest 4 mm in 1997	80
February	20.7°C25 Feb 2021	-19.3°C16 Feb 1956	40 mm6 Feb 1984	132 mm2002 · driest 5 mm in 1986	80
March	26.7°C31 Mar 2021	-9.9°C6 Mar 1971	33 mm24 Mar 1957	135 mm1988 · driest 9 mm in 1993	78
April	30.1°C21 Apr 1968	-4.9°C12 Apr 1986	28 mm16 Apr 1959	111 mm1961 · driest 0 mm in 2007	78
May	34.3°C29 May 2017	-0.9°C7 May 1957	59 mm2 May 2024	165 mm1984 · driest 12 mm in 2020	79
June	37.9°C27 Jun 1947	3.3°C2 Jun 1962	69 mm2 Jun 1961	213 mm2016 · driest 13 mm in 2010	79
July	41.1°C25 Jul 2019	5.9°C5 Jul 1964	154 mm14 Jul 2021	235 mm2021 · driest 7 mm in 2018	79
August	38.3°C8 Aug 2003	5.0°C25 Aug 1966	91 mm30 Aug 1968	206 mm2010 · driest 12 mm in 2022	79
September	34.9°C16 Sep 1947	3.0°C16 Sep 1971	44 mm12 Sep 1989	169 mm1957 · driest 3 mm in 1959	78
October	27.3°C1 Oct 2011	-2.9°C30 Oct 1949	38 mm23 Oct 1966	164 mm1998 · driest 11 mm in 1985	78
November	21.3°C2 Nov 2020	-7.9°C16 Nov 1965	44 mm18 Nov 2004	137 mm2001 · driest 5 mm in 1953	78
December	18.4°C31 Dec 2022	-14.9°C21 Dec 1946	30 mm30 Dec 2002	154 mm1965 · driest 9 mm in 1963	79

Typical days per month at KOLN-STAMMHEIM, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	10	1
February	0	0	9	1
March	0	0	4	1
April	2	0	<1	1
May	5	<1	0	2
June	9	2	0	2
July	15	5	0	3
August	13	4	0	2
September	4	<1	0	2
October	<1	0	<1	2
November	0	0	2	2
December	0	0	8	2

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 90); on 2011–2025 it is June (92). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in KOLN-STAMMHEIM’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%	40%	4%	54%	2.6–8.4°C
February	<1%	37%	4%	49%	4.0–10.4°C
March	2%	34%	4%	46%	7.8–13.5°C
April	14%	32%	3%	41%	12.5–17.6°C
May	33%	34%	5%	44%	16.4–21.6°C
June	46%	35%	8%	46%	19.7–24.5°C
July	56%	36%	8%	48%	20.8–26.9°C
August	56%	34%	8%	44%	21.3–26.6°C
September	38%	33%	7%	42%	17.5–23.1°C
October	10%	32%	5%	42%	13.1–17.7°C
November	<1%	39%	5%	52%	7.8–12.2°C
December	0%	42%	5%	58%	3.4–8.6°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.

1946Each stripe is one year’s mean temperature against the 77-year average. Warmest: 2022. Coolest: 1956.2023

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2925259
NOAA station: GME00125302 · KOLN-STAMMHEIM
Station distance: 14.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 50.91°, 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 KOLN-STAMMHEIM is what differs

Köln→Leverkusen→Nippes→Rodenkirchen→Bergisch Gladbach→Dormagen→

Or put two places side by side: Frechen vs Köln

Best time to visitFrechen.

August

July

May

The whole year,without the guesswork.

Frechen runs +2.1°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Frechen.

The whole year,
without the guesswork.

Frechen runs +2.1°C
on the 1961–1990 baseline.

Nearby, measured,
and named.