United States · 1991–2020

Best time to visit
Arthur.

September leads for comfortable weather in Arthur: typically 23.9°C by day, 10.6°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23.9°C

Typical low10.6°C

Rain in September72 mm

Comfort

September

September · June · August

84climate match

Beach

July

July · August · June

75climate match

Outdoors

September

September · October · May

78climate match

The weakest month is January, scoring 5 against September’s 84 — days reach only -2.5°C, 26° 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

5-2.5° / -12.9°

Feb

50.6° / -9.7°

Mar

67.1° / -4.2°

Apr

3715.3° / 2.4°

May

6721.6° / 9.2°

Jun

7526.9° / 15°

Jul

7028.6° / 17.3°

Aug

7427.7° / 16°

Sep

8423.9° / 10.6°

Oct

5417.1° / 4°

Nov

117.3° / -3.5°

Dec

50° / -9.3°

Monthly climate evidence for Arthur — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-2.5°C	-12.9°C	23 mm	2.5	9 h 24	5	Good coverage
February	0.6°C	-9.7°C	15 mm	2.2	10 h 29	5	Good coverage
March	7.1°C	-4.2°C	49 mm	4.7	11 h 48	6	Good coverage
April	15.3°C	2.4°C	90 mm	7	13 h 18	37	Good coverage
May	21.6°C	9.2°C	104 mm	8.9	14 h 34	67	Good coverage
June	26.9°C	15°C	122 mm	7.2	15 h 15	75	Good coverage
July	28.6°C	17.3°C	87 mm	7	14 h 59	70	Good coverage
August	27.7°C	16°C	94 mm	6.7	13 h 53	74	Good coverage
September	23.9°C	10.6°C	72 mm	5.5	12 h 26	84	Good coverage
October	17.1°C	4°C	45 mm	4.7	10 h 59	54	Good coverage
November	7.3°C	-3.5°C	37 mm	3.3	9 h 43	11	Good coverage
December	0°C	-9.3°C	12 mm	1.7	9 h 06	5	Good coverage

Records at IDA GROVE 5NW, 1902–2007
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.4°C24 Jan 1981	-35.6°C14 Jan 1982	38 mm16 Jan 2003	93 mm1975 · driest 0 mm in 1991	65
February	20.6°C29 Feb 2000	-35.0°C4 Feb 1905	34 mm19 Feb 1971	107 mm1971 · driest 0 mm in 2007	65
March	35.0°C29 Mar 1986	-31.1°C5 Mar 1960	58 mm28 Mar 2004	132 mm1979 · driest 0 mm in 2005	66
April	36.1°C22 Apr 1980	-16.1°C3 Apr 1975	68 mm28 Apr 1975	218 mm1986 · driest 16 mm in 1966	65
May	38.3°C25 May 1967	-7.2°C2 May 1961	171 mm6 May 2007	274 mm1959 · driest 21 mm in 1955	64
June	40.6°C8 Jun 1985	1.1°C3 Jun 1969	112 mm20 Jun 1996	357 mm1967 · driest 5 mm in 2007	65
July	40.6°C31 Jul 1955	5.0°C9 Jul 1905	97 mm6 Jul 1982	225 mm1982 · driest 7 mm in 1904	65
August	39.4°C27 Aug 1955	1.1°C27 Aug 1906	280 mm31 Aug 1962	377 mm1951 · driest 13 mm in 1976	64
September	38.3°C3 Sep 2000	-5.6°C29 Sep 1984	124 mm13 Sep 1978	282 mm1965 · driest 2 mm in 1904	65
October	33.9°C2 Oct 1953	-12.2°C20 Oct 1960	75 mm2 Oct 1954	155 mm1984 · driest 0 mm in 1952	65
November	27.8°C10 Nov 2006	-25.0°C14 Nov 1959	61 mm30 Nov 1991	101 mm1991 · driest 0 mm in 1967	66
December	20.0°C2 Dec 1998	-33.3°C22 Dec 1989	43 mm16 Dec 1984	67 mm1984 · driest 0 mm in 2005	65

Typical days per month at IDA GROVE 5NW, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	<1	3
February	0	0	26	<1	2
March	<1	0	23	2	2
April	3	<1	10	3	<1
May	11	3	1	3	0
June	21	9	0	4	0
July	26	12	0	3	0
August	24	10	0	3	0
September	14	5	<1	2	0
October	5	1	8	2	<1
November	<1	0	22	1	1
December	0	0	29	<1	2

How often, not how much — every day in IDA GROVE 5NW’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%	10%	2%	5%	-6.1–2.6°C
February	<1%	11%	2%	6%	-4.0–4.5°C
March	6%	17%	5%	14%	2.5–12.3°C
April	28%	24%	9%	25%	12.8–19.6°C
May	51%	29%	12%	35%	19.9–24.7°C
June	71%	27%	12%	28%	25.1–29.5°C
July	76%	24%	9%	24%	27.7–32.0°C
August	76%	24%	9%	20%	26.8–30.4°C
September	67%	20%	8%	18%	22.0–27.1°C
October	38%	16%	6%	12%	15.1–20.5°C
November	5%	12%	3%	8%	4.2–11.6°C
December	<1%	10%	2%	5%	-3.7–3.6°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.

1945Each stripe is one year’s mean temperature against the 53-year average. Warmest: 2006. Coolest: 1996.2007

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4847216
NOAA station: USC00134038 · IDA GROVE 5NW
Station distance: 15.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 42.33°, 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 IDA GROVE 5NW is what differs

Ida Grove→Odebolt→Brook Mount→

Or put two places side by side: Arthur vs Ida Grove

Best time to visitArthur.

September

July

September

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Arthur.

The whole year,
without the guesswork.

Nearby, measured,
and named.