United States · 1991–2020

Best time to visit
Big Square.

September leads for comfortable weather in Big Square: typically 28.5°C by day, 12.1°C at night, with 61 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high28.5°C

Typical low12.1°C

Rain in September61 mm

Comfort

September

September · October · April

75climate match

Beach

July

July · September · August

69climate match

Outdoors

April

April · October · March

80climate match

The weakest month is January, scoring 19 against September’s 75 — days reach only 10.8°C, 13° below the 24°C the score treats as ideal, and nights drop to -5.9°C.

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

1910.8° / -5.9°

Feb

2913.2° / -4.6°

Mar

5117.8° / -0.8°

Apr

7322.4° / 3.1°

May

7327.2° / 9.2°

Jun

6332° / 14.9°

Jul

6133.2° / 17°

Aug

6132.4° / 16.3°

Sep

7528.5° / 12.1°

Oct

7522.7° / 5.4°

Nov

4415.9° / -1.2°

Dec

2010.8° / -5.2°

Monthly climate evidence for Big Square — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	10.8°C	-5.9°C	14 mm	1.9	10 h 05	19	Strong coverage
February	13.2°C	-4.6°C	14 mm	2.4	10 h 54	29	Strong coverage
March	17.8°C	-0.8°C	26 mm	3.2	11 h 52	51	Strong coverage
April	22.4°C	3.1°C	32 mm	3.7	13 h	73	Strong coverage
May	27.2°C	9.2°C	67 mm	4.8	13 h 56	73	Strong coverage
June	32°C	14.9°C	92 mm	6	14 h 26	63	Strong coverage
July	33.2°C	17°C	60 mm	5.3	14 h 14	61	Strong coverage
August	32.4°C	16.3°C	79 mm	6.6	13 h 26	61	Strong coverage
September	28.5°C	12.1°C	61 mm	4.8	12 h 21	75	Strong coverage
October	22.7°C	5.4°C	54 mm	4.1	11 h 16	75	Strong coverage
November	15.9°C	-1.2°C	18 mm	2.3	10 h 19	44	Strong coverage
December	10.8°C	-5.2°C	18 mm	2.6	9 h 52	20	Strong coverage

What has changed

Big Square runs +0.9°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

+0.4

Feb

+0.5

Mar

+1.4

Apr

+0.3

May

+0.5

Jun

+1.5

Jul

+1.0

Aug

+1.9

Sep

+1.4

Oct

+0.4

Nov

+0.6

Dec

+1.2

September daytime highs, 2011–2025. Last recorded: 29.8°C.

Records at DIMMITT, 1962–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.7°C18 Jan 1974	-22.2°C13 Jan 1963	36 mm21 Jan 1983	57 mm2017 · driest 0 mm in 2008	63
February	30.0°C4 Feb 2025	-24.4°C15 Feb 2021	28 mm16 Feb 1998	69 mm1998 · driest 0 mm in 2000	64
March	36.7°C26 Mar 2026	-17.8°C3 Mar 2002	40 mm8 Mar 2001	91 mm2001 · driest 0 mm in 1966	63
April	37.2°C26 Apr 2012	-10.0°C24 Apr 2013	91 mm15 Apr 2017	152 mm2017 · driest 0 mm in 1964	64
May	40.0°C19 May 2003	-5.6°C3 May 2013	99 mm27 May 1987	267 mm2015 · driest 1 mm in 1998	64
June	42.8°C27 Jun 2011	3.3°C4 Jun 1970	93 mm11 Jun 1965	239 mm2003 · driest 1 mm in 2020	64
July	43.9°C4 Jul 1983	7.8°C4 Jul 1983	102 mm21 Jul 2015	182 mm2015 · driest 1 mm in 1964	65
August	41.7°C3 Aug 2012	4.4°C27 Aug 2010	105 mm14 Aug 2017	349 mm2017 · driest 4 mm in 2000	63
September	38.9°C7 Sep 1983	-2.8°C21 Sep 1983	105 mm20 Sep 2004	246 mm2004 · driest 0 mm in 2000	64
October	36.1°C4 Oct 2000	-10.0°C31 Oct 1991	111 mm31 Oct 1998	191 mm1998 · driest 0 mm in 1992	64
November	30.6°C9 Nov 1980	-18.9°C3 Nov 1991	41 mm18 Nov 2024	139 mm2024 · driest 0 mm in 2017	64
December	26.1°C25 Dec 2025	-22.2°C24 Dec 2004	34 mm18 Dec 1995	66 mm1991 · driest 0 mm in 1976	64

Typical days per month at DIMMITT, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	<1	0	29	<1	1
February	<1	0	24	<1	1
March	5	<1	18	<1	<1
April	13	3	8	1	<1
May	21	12	<1	2	0
June	28	21	0	3	0
July	30	27	0	2	0
August	30	25	0	2	0
September	24	13	<1	2	0
October	13	4	4	1	<1
November	3	<1	19	<1	<1
December	<1	0	28	<1	2

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 78); on 2011–2025 it is October (80). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in DIMMITT’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	10%	7%	1%	3%	7.3–13.8°C
February	20%	9%	1%	4%	9.7–16.0°C
March	44%	10%	2%	4%	14.9–20.8°C
April	65%	11%	3%	8%	20.4–25.4°C
May	75%	17%	7%	20%	24.5–29.6°C
June	79%	21%	10%	20%	29.2–34.1°C
July	82%	18%	7%	17%	30.8–35.5°C
August	80%	20%	7%	17%	29.7–34.5°C
September	80%	17%	6%	14%	26.1–30.9°C
October	67%	13%	4%	10%	19.9–24.9°C
November	34%	8%	2%	4%	12.8–19.1°C
December	12%	8%	2%	3%	8.2–13.9°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.

1963Each stripe is one year’s mean temperature against the 58-year average. Warmest: 2024. Coolest: 1979.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5517073
NOAA station: USC00412464 · DIMMITT
Station distance: 23.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 34.38°, 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 DIMMITT is what differs

Dimmitt→Nazareth→Arney→Easter→Flagg→Mulkey→

Or put two places side by side: Big Square vs Dimmitt

Best time to visitBig Square.