United States · 1991–2020

Best time to visit
Carl Junction.

September leads for comfortable weather in Carl Junction: typically 27.9°C by day, 15.4°C at night, with 106 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27.9°C

Typical low15.4°C

Rain in September106 mm

Comfort

September

September · May · October

74climate match

Beach

August

August · July · June

75climate match

Outdoors

October

October · April · March

78climate match

The weakest month is January, scoring 7 against September’s 74 — days reach only 7.3°C, 17° below the 24°C the score treats as ideal, and nights drop to -3.7°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

77.3° / -3.7°

Feb

2110.2° / -1.6°

Mar

4015.5° / 3.2°

Apr

5920.8° / 8.3°

May

6925.1° / 13.6°

Jun

5330.1° / 18.7°

Jul

4932.5° / 21.1°

Aug

5332.4° / 20.2°

Sep

7427.9° / 15.4°

Oct

6921.6° / 9°

Nov

3814.8° / 3.1°

Dec

138.9° / -1.7°

Monthly climate evidence for Carl Junction — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7.3°C	-3.7°C	49 mm	5.4	9 h 52	7	Strong coverage
February	10.2°C	-1.6°C	49 mm	5.1	10 h 46	21	Strong coverage
March	15.5°C	3.2°C	81 mm	7.9	11 h 51	40	Strong coverage
April	20.8°C	8.3°C	127 mm	8.7	13 h 06	59	Strong coverage
May	25.1°C	13.6°C	167 mm	10.3	14 h 08	69	Strong coverage
June	30.1°C	18.7°C	142 mm	8.7	14 h 42	53	Strong coverage
July	32.5°C	21.1°C	99 mm	6.7	14 h 29	49	Strong coverage
August	32.4°C	20.2°C	85 mm	6.2	13 h 35	53	Strong coverage
September	27.9°C	15.4°C	106 mm	6.2	12 h 22	74	Strong coverage
October	21.6°C	9°C	96 mm	6.9	11 h 10	69	Strong coverage
November	14.8°C	3.1°C	84 mm	6.3	10 h 07	38	Strong coverage
December	8.9°C	-1.7°C	66 mm	5.9	9 h 37	13	Strong coverage

What has changed

Carl Junction runs +1.2°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

+2.1

Feb

+1.3

Mar

+1.8

Apr

-0.2

May

0.0

Jun

+1.7

Jul

+1.1

Aug

+0.7

Sep

+1.8

Oct

+0.4

Nov

+1.3

Dec

+2.8

September daytime highs, 2011–2025. Last recorded: 28.6°C.

Records at JOPLIN RGNL AP, 1948–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C24 Jan 1950	-24.4°C20 Jan 1985	61 mm30 Jan 1975	177 mm1949 · driest 0 mm in 1961	79
February	30.6°C22 Feb 1996	-26.0°C16 Feb 2021	119 mm22 Feb 1985	199 mm1985 · driest 0 mm in 2006	79
March	33.9°C21 Mar 2026	-20.6°C11 Mar 1948	82 mm18 Mar 2008	230 mm1973 · driest 9 mm in 1956	79
April	35.6°C12 Apr 1972	-7.2°C8 Apr 2007	115 mm29 Apr 2017	285 mm2017 · driest 3 mm in 1989	79
May	35.0°C31 May 1949	-1.1°C1 May 1960	145 mm7 May 2008	360 mm2019 · driest 37 mm in 1988	79
June	39.4°C11 Jun 1953	6.7°C10 Jun 1988	133 mm23 Jun 1976	435 mm2007 · driest 15 mm in 1954	79
July	46.1°C14 Jul 1954	10.0°C13 Jul 1975	174 mm3 Jul 1976	372 mm1958 · driest 0 mm in 2012	79
August	43.3°C2 Aug 2011	7.8°C21 Aug 1950	125 mm14 Aug 1980	217 mm1964 · driest 1 mm in 2000	78
September	40.6°C1 Sep 2000	-1.1°C30 Sep 1984	181 mm30 Sep 1986	485 mm1986 · driest 5 mm in 2013	78
October	34.4°C1 Oct 1953	-7.8°C31 Oct 1993	136 mm8 Oct 2009	249 mm1959 · driest 1 mm in 1963	78
November	30.6°C9 Nov 2006	-14.3°C18 Nov 2014	92 mm20 Nov 1979	313 mm1985 · driest 0 mm in 1955	78
December	26.1°C27 Dec 2025	-26.1°C23 Dec 1989	91 mm4 Dec 1999	248 mm2015 · driest 1 mm in 2025	78

Typical days per month at JOPLIN RGNL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	23	2	3
February	<1	0	18	2	1
March	3	<1	10	3	1
April	9	1	2	4	<1
May	18	5	<1	5	0
June	28	18	0	4	0
July	31	25	0	3	0
August	30	24	0	3	0
September	23	11	0	3	0
October	10	2	2	3	<1
November	1	0	10	3	<1
December	0	0	21	2	2

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 82); on 2011–2025 it is September (77). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in JOPLIN RGNL AP’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	3%	16%	5%	13%	3.3–9.6°C
February	9%	19%	6%	14%	5.5–13.2°C
March	24%	24%	9%	28%	11.8–17.5°C
April	45%	28%	12%	33%	18.4–23.0°C
May	60%	32%	15%	41%	22.9–26.9°C
June	72%	28%	14%	31%	27.4–32.0°C
July	80%	20%	9%	19%	30.4–34.1°C
August	79%	21%	9%	22%	29.8–34.7°C
September	75%	22%	11%	20%	25.3–30.4°C
October	54%	21%	9%	22%	19.0–23.7°C
November	20%	20%	8%	17%	11.0–17.0°C
December	4%	19%	6%	17%	6.0–11.6°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.

1948Each stripe is one year’s mean temperature against the 78-year average. Warmest: 2012. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4380043
NOAA station: USW00013987 · JOPLIN RGNL AP
Station distance: 6.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 37.18°, 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 JOPLIN RGNL AP is what differs

Joplin→Webb City→Galena→Oronogo→Carterville→Duquesne→

Or put two places side by side: Carl Junction vs Joplin

Best time to visitCarl Junction.