United States · 1991–2020

Best time to visit
De Smet.

August leads for comfortable weather in De Smet: typically 26.7°C by day, 15.5°C at night, with 78 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high26.7°C

Typical low15.5°C

Rain in August78 mm

Comfort

August

August · September · June

81climate match

Beach

July

July · August · June

70climate match

Outdoors

September

September · May · October

82climate match

The weakest month is January, scoring 5 against August’s 81 — days reach only -4.3°C, 28° 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

5-4.3° / -14.3°

Feb

5-1.4° / -12°

Mar

55.3° / -5.7°

Apr

3413.3° / 1.1°

May

6320.1° / 7.9°

Jun

7925.6° / 14.1°

Jul

7128.1° / 16.8°

Aug

8126.7° / 15.5°

Sep

8022.6° / 10.5°

Oct

4314.4° / 2.7°

Nov

55.4° / -4.9°

Dec

5-1.9° / -11.4°

Monthly climate evidence for De Smet — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-4.3°C	-14.3°C	15 mm	3	9 h 11	5	Strong coverage
February	-1.4°C	-12°C	23 mm	3.5	10 h 22	5	Strong coverage
March	5.3°C	-5.7°C	35 mm	4.5	11 h 46	5	Strong coverage
April	13.3°C	1.1°C	58 mm	6.2	13 h 24	34	Strong coverage
May	20.1°C	7.9°C	82 mm	8.7	14 h 45	63	Strong coverage
June	25.6°C	14.1°C	103 mm	8.6	15 h 31	79	Strong coverage
July	28.1°C	16.8°C	97 mm	7.5	15 h 13	71	Strong coverage
August	26.7°C	15.5°C	78 mm	6.3	14 h 02	81	Strong coverage
September	22.6°C	10.5°C	69 mm	5.6	12 h 27	80	Strong coverage
October	14.4°C	2.7°C	50 mm	4.6	10 h 54	43	Strong coverage
November	5.4°C	-4.9°C	22 mm	3.3	9 h 32	5	Strong coverage
December	-1.9°C	-11.4°C	18 mm	3.1	8 h 52	5	Strong coverage

What has changed

De Smet 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

+1.4

Feb

-0.6

Mar

+1.0

Apr

-2.0

May

-1.3

Jun

0.0

Jul

-1.6

Aug

-1.9

Sep

+0.8

Oct

-0.9

Nov

+1.1

Dec

+2.0

August daytime highs, 2011–2025. Last recorded: 26.9°C.

Records at DE SMET, 1893–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	18.3°C24 Jan 1981	-42.2°C12 Jan 1912	31 mm30 Jan 1929	76 mm1929 · driest 0 mm in 1898	126
February	20.0°C23 Feb 1958	-40.0°C10 Feb 1899	59 mm23 Feb 1977	65 mm2001 · driest 0 mm in 1925	126
March	31.1°C30 Mar 1943	-32.2°C2 Mar 1913	48 mm13 Mar 2019	114 mm1900 · driest 0 mm in 1925	126
April	35.6°C21 Apr 1980	-19.4°C3 Apr 1975	102 mm13 Apr 1912	193 mm1986 · driest 0 mm in 1934	125
May	40.6°C28 May 1934	-11.7°C17 May 2002	90 mm30 May 2022	227 mm1942 · driest 3 mm in 1997	126
June	43.3°C25 Jun 1936	-2.8°C28 Jun 1895	112 mm19 Jun 1984	347 mm1914 · driest 6 mm in 1929	126
July	43.9°C21 Jul 1934	0.0°C9 Jul 1895	95 mm26 Jul 1986	228 mm1921 · driest 2 mm in 1894	128
August	42.2°C4 Aug 1934	-1.1°C29 Aug 1893	118 mm5 Aug 2023	255 mm2025 · driest 0 mm in 1919	124
September	40.6°C18 Sep 1895	-10.0°C26 Sep 1893	89 mm30 Sep 1995	246 mm2005 · driest 1 mm in 1940	124
October	33.9°C5 Oct 1947	-22.2°C29 Oct 1925	78 mm30 Oct 1956	146 mm2021 · driest 0 mm in 1893	126
November	26.7°C8 Nov 1893	-27.8°C21 Nov 1898	46 mm6 Nov 1947	110 mm1947 · driest 0 mm in 1914	123
December	17.8°C3 Dec 1941	-36.7°C18 Dec 2016	49 mm24 Dec 2023	54 mm2023 · driest 0 mm in 1986	126

Typical days per month at DE SMET, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	<1	4
February	0	0	27	<1	4
March	<1	0	25	1	3
April	2	<1	13	2	2
May	7	1	2	3	0
June	19	5	0	3	0
July	25	10	0	3	0
August	22	6	0	2	0
September	11	3	<1	2	0
October	2	<1	10	2	<1
November	<1	0	24	<1	2
December	0	0	30	<1	4

How often, not how much — every day in DE SMET’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%	9%	1%	3%	-9.0–0.3°C
February	<1%	11%	1%	5%	-6.9–3.9°C
March	4%	15%	4%	9%	-0.1–10.0°C
April	22%	20%	7%	20%	10.3–18.2°C
May	48%	25%	9%	27%	18.2–24.4°C
June	68%	27%	11%	30%	23.6–28.6°C
July	79%	21%	9%	16%	26.8–32.3°C
August	79%	19%	7%	16%	26.0–30.9°C
September	64%	17%	6%	13%	20.8–26.1°C
October	29%	14%	5%	9%	12.8–19.1°C
November	2%	11%	2%	6%	1.6–9.5°C
December	0%	10%	1%	5%	-5.9–2.5°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.

1898Each stripe is one year’s mean temperature against the 106-year average. Warmest: 2012. Coolest: 1996.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5227237
NOAA station: USC00392302 · DE SMET
Station distance: 0.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 44.39°, 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 DE SMET is what differs

Lake Preston→Bryant→Iroquois→Willow Lake→Erwin→Bancroft→

Or put two places side by side: De Smet vs Lake Preston

Best time to visitDe Smet.