United States · 1991–2020

Best time to visit
Smithville.

September leads for comfortable weather in Smithville: typically 25.6°C by day, 13.9°C at night, with 115 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.6°C

Typical low13.9°C

Rain in September115 mm

Comfort

September

September · May · June

78climate match

Beach

July

July · August · June

73climate match

Outdoors

October

October · April · May

80climate match

The weakest month is January, scoring 5 against September’s 78 — days reach only 2.9°C, 21° 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

52.9° / -8.2°

Feb

55.8° / -5.8°

Mar

2711.8° / 0°

Apr

4917.6° / 5.5°

May

7123° / 12.1°

Jun

6328.1° / 17.7°

Jul

5330.6° / 20.2°

Aug

5829.7° / 19°

Sep

7825.6° / 13.9°

Oct

6019.2° / 6.8°

Nov

3412.4° / 0.4°

Dec

56° / -4.9°

Monthly climate evidence for Smithville — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.9°C	-8.2°C	24 mm	3.7	9 h 40	5	Strong coverage
February	5.8°C	-5.8°C	29 mm	3.9	10 h 39	5	Good coverage
March	11.8°C	0°C	51 mm	6.4	11 h 49	27	Strong coverage
April	17.6°C	5.5°C	92 mm	8.4	13 h 11	49	Strong coverage
May	23°C	12.1°C	132 mm	10.2	14 h 19	71	Strong coverage
June	28.1°C	17.7°C	127 mm	8.9	14 h 56	63	Strong coverage
July	30.6°C	20.2°C	118 mm	7.8	14 h 41	53	Strong coverage
August	29.7°C	19°C	115 mm	7.7	13 h 43	58	Strong coverage
September	25.6°C	13.9°C	115 mm	7.5	12 h 24	78	Strong coverage
October	19.2°C	6.8°C	79 mm	6.7	11 h 06	60	Strong coverage
November	12.4°C	0.4°C	42 mm	4	9 h 57	34	Strong coverage
December	6°C	-4.9°C	28 mm	3.5	9 h 24	5	Good coverage

Records at SMITHVILLE LAKE, 1985–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	22.2°C29 Jan 2015	-28.3°C28 Jan 1997	41 mm31 Jan 2002	64 mm1999 · driest 0 mm in 2021	38
February	25.6°C27 Feb 2024	-32.2°C16 Feb 2021	56 mm22 Feb 1997	108 mm1997 · driest 0 mm in 2026	37
March	33.9°C27 Mar 2026	-22.8°C12 Mar 1998	61 mm8 Mar 2009	126 mm1990 · driest 8 mm in 2026	40
April	33.3°C30 Apr 1987	-13.3°C1 Apr 2021	117 mm27 Apr 2016	191 mm2016 · driest 10 mm in 2000	41
May	33.9°C28 May 2018	-2.2°C7 May 1989	113 mm19 May 2004	302 mm2015 · driest 21 mm in 2012	40
June	39.4°C25 Jun 1988	5.0°C6 Jun 1998	78 mm17 Jun 1996	270 mm2015 · driest 21 mm in 2023	41
July	40.0°C23 Jul 1991	8.3°C5 Jul 1997	98 mm7 Jul 2015	351 mm1992 · driest 7 mm in 2003	40
August	41.7°C9 Aug 1988	5.0°C29 Aug 1988	140 mm22 Aug 2017	361 mm2016 · driest 16 mm in 2008	40
September	40.0°C1 Sep 2000	-1.7°C24 Sep 1989	98 mm9 Sep 1989	259 mm1986 · driest 0 mm in 2021	38
October	33.3°C4 Oct 2006	-8.9°C14 Oct 2006	87 mm5 Oct 1998	260 mm2014 · driest 0 mm in 2020	39
November	26.7°C14 Nov 1999	-19.4°C8 Nov 1991	60 mm2 Nov 1998	142 mm1998 · driest 0 mm in 2022	38
December	22.8°C5 Dec 2001	-32.2°C23 Dec 1989	48 mm14 Dec 1992	101 mm1992 · driest 0 mm in 2025	34

Typical days per month at SMITHVILLE LAKE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	22	<1	2
February	0	0	20	<1	2
March	<1	<1	14	1	<1
April	4	<1	5	3	<1
May	12	2	<1	4	0
June	23	11	0	4	0
July	27	17	0	3	0
August	25	14	0	3	0
September	16	6	0	3	0
October	6	<1	3	2	<1
November	<1	0	11	1	<1
December	0	0	19	<1	1

How often, not how much — every day in SMITHVILLE LAKE’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	<1%	11%	3%	6%	0.3–6.7°C
February	3%	13%	2%	9%	1.0–9.9°C
March	15%	22%	6%	20%	9.2–15.6°C
April	29%	28%	10%	33%	15.1–20.2°C
May	51%	33%	13%	40%	20.9–25.9°C
June	70%	29%	13%	34%	26.5–30.3°C
July	75%	25%	11%	24%	28.8–32.8°C
August	76%	25%	11%	25%	27.8–31.7°C
September	67%	24%	11%	29%	23.1–28.3°C
October	41%	22%	8%	25%	16.1–21.5°C
November	12%	15%	5%	9%	7.4–16.3°C
December	1%	11%	3%	4%	2.0–8.8°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.

1989Each stripe is one year’s mean temperature against the 23-year average. Warmest: 2012. Coolest: 1989.2022

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4409199
NOAA station: USC00237862 · SMITHVILLE LAKE
Station distance: 2.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 24 usable years
Daylight: Calculated from latitude 39.39°, 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 SMITHVILLE LAKE is what differs

Plattsburg→Gower→Trimble→Edgerton→Dearborn→Ridgely→

Or put two places side by side: Smithville vs Plattsburg

Best time to visitSmithville.