United States · 1991–2020

Best time to visit
Clontarf.

September leads for comfortable weather in Clontarf: typically 23°C by day, 9.9°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23°C

Typical low9.9°C

Rain in September72 mm

Comfort

September

September · August · June

79climate match

Beach

July

July · August · June

67climate match

Outdoors

September

September · May · October

80climate match

The weakest month is January, scoring 5 against September’s 79 — days reach only -6.1°C, 30° 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

5-6.1° / -16.3°

Feb

5-3.4° / -14.3°

Mar

53.9° / -6.7°

Apr

3113.1° / 0.7°

May

6420.6° / 7.9°

Jun

7626.1° / 14°

Jul

7028.2° / 16.2°

Aug

7826.9° / 14.8°

Sep

7923° / 9.9°

Oct

3914.4° / 2.4°

Nov

54.6° / -5.4°

Dec

5-3.2° / -12.4°

Monthly climate evidence for Clontarf — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-6.1°C	-16.3°C	19 mm	4.1	9 h 05	5	Strong coverage
February	-3.4°C	-14.3°C	20 mm	4	10 h 19	5	Strong coverage
March	3.9°C	-6.7°C	37 mm	5.5	11 h 46	5	Strong coverage
April	13.1°C	0.7°C	65 mm	6.8	13 h 26	31	Strong coverage
May	20.6°C	7.9°C	85 mm	8.8	14 h 51	64	Strong coverage
June	26.1°C	14°C	105 mm	9.6	15 h 38	76	Strong coverage
July	28.2°C	16.2°C	101 mm	8.1	15 h 20	70	Strong coverage
August	26.9°C	14.8°C	96 mm	7.3	14 h 06	78	Strong coverage
September	23°C	9.9°C	72 mm	7	12 h 28	79	Strong coverage
October	14.4°C	2.4°C	63 mm	6.7	10 h 52	39	Strong coverage
November	4.6°C	-5.4°C	29 mm	4	9 h 27	5	Strong coverage
December	-3.2°C	-12.4°C	21 mm	4.4	8 h 44	5	Strong coverage

What has changed

Clontarf runs +0.2°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

+1.3

Feb

-0.9

Mar

+0.7

Apr

-2.1

May

-0.6

Jun

+0.4

Jul

-0.3

Aug

-0.6

Sep

+2.2

Oct

-0.1

Nov

+1.0

Dec

+1.7

September daytime highs, 2011–2025. Last recorded: 25.6°C.

Records at BENSON, 1952–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.2°C24 Jan 1981	-37.2°C9 Jan 1977	25 mm23 Jan 2010	76 mm1975 · driest 0 mm in 2023	74
February	16.1°C28 Feb 2016	-37.2°C1 Feb 1996	44 mm24 Feb 1977	63 mm2013 · driest 0 mm in 2022	74
March	26.7°C19 Mar 2012	-32.8°C1 Mar 1962	77 mm23 Mar 2009	112 mm2009 · driest 2 mm in 2022	74
April	36.1°C21 Apr 1980	-17.8°C4 Apr 2018	87 mm23 Apr 2001	200 mm2001 · driest 4 mm in 1980	74
May	37.2°C29 May 2006	-6.7°C1 May 1961	90 mm16 May 1969	184 mm2024 · driest 3 mm in 1976	74
June	40.0°C24 Jun 1988	1.1°C2 Jun 1964	89 mm3 Jun 2024	267 mm2014 · driest 17 mm in 1973	73
July	39.4°C10 Jul 1966	5.0°C30 Jul 1971	134 mm5 Jul 1994	243 mm1994 · driest 15 mm in 2007	73
August	39.4°C1 Aug 2006	2.2°C21 Aug 2004	142 mm18 Aug 1990	238 mm1990 · driest 11 mm in 2013	73
September	38.3°C4 Sep 2023	-6.1°C26 Sep 1965	90 mm8 Sep 1991	160 mm2019 · driest 1 mm in 1979	73
October	33.9°C5 Oct 1963	-12.2°C27 Oct 2020	79 mm16 Oct 1971	221 mm1984 · driest 0 mm in 1952	73
November	27.2°C8 Nov 1999	-29.4°C30 Nov 1964	56 mm9 Nov 1977	117 mm1977 · driest 1 mm in 2007	73
December	15.6°C1 Dec 1998	-33.3°C19 Dec 1955	35 mm12 Dec 1965	74 mm1968 · driest 0 mm in 1986	73

Typical days per month at BENSON, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	31	<1	6
February	0	0	27	<1	5
March	<1	0	26	1	3
April	2	<1	14	2	1
May	8	2	2	3	0
June	19	6	0	3	0
July	26	10	0	3	0
August	23	7	0	3	0
September	12	3	<1	2	0
October	2	<1	11	2	<1
November	<1	0	25	1	2
December	0	0	31	<1	5

The best month has moved. On the 1961–1990 numbers the strongest month here was August (scoring 80); on 2011–2025 it is September (88). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in BENSON’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%	14%	1%	8%	-10.6–-1.8°C
February	0%	14%	2%	10%	-8.0–1.8°C
March	2%	17%	3%	14%	-0.4–8.0°C
April	16%	24%	7%	26%	9.6–17.0°C
May	47%	27%	9%	33%	18.4–24.4°C
June	64%	32%	11%	40%	24.2–28.3°C
July	75%	25%	10%	22%	26.4–31.2°C
August	75%	23%	10%	22%	25.4–29.1°C
September	57%	22%	7%	23%	20.3–24.9°C
October	23%	18%	6%	16%	12.4–17.5°C
November	2%	13%	3%	10%	0.2–8.1°C
December	0%	13%	2%	8%	-7.5–0.5°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.

1953Each stripe is one year’s mean temperature against the 70-year average. Warmest: 1987. Coolest: 1996.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5021625
NOAA station: USC00210667 · BENSON
Station distance: 8.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 45.38°, 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 BENSON is what differs

Benson→Murdock→De Graff→Danvers→Benson Mobile Manor→Louriston→

Or put two places side by side: Clontarf vs Benson

Best time to visitClontarf.

September

July

September

The whole year,without the guesswork.

Clontarf runs +0.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Clontarf.

The whole year,
without the guesswork.

Clontarf runs +0.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.