United States · 1991–2020

Best time to visit
Wann.

September leads for comfortable weather in Wann: typically 28.4°C by day, 16°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high28.4°C

Typical low16°C

Rain in September100 mm

Comfort

September

September · October · May

72climate match

Beach

July

July · August · September

74climate match

Outdoors

April

April · October · November

76climate match

The weakest month is January, scoring 8 against September’s 72 — days reach only 7.7°C, 16° below the 24°C the score treats as ideal, and nights drop to -4.6°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

87.7° / -4.6°

Feb

159.6° / -3.2°

Mar

3915.7° / 2.7°

Apr

6321° / 8°

May

6525.2° / 13.7°

Jun

5330.2° / 18.9°

Jul

4832.8° / 21.3°

Aug

4932.6° / 20.4°

Sep

7228.4° / 16°

Oct

6821.8° / 9°

Nov

4415.3° / 2.7°

Dec

138.7° / -2.9°

Monthly climate evidence for Wann — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	7.7°C	-4.6°C	46 mm	4.4	9 h 53	8	Good coverage
February	9.6°C	-3.2°C	53 mm	5.1	10 h 46	15	Good coverage
March	15.7°C	2.7°C	91 mm	7.1	11 h 51	39	Good coverage
April	21°C	8°C	108 mm	7.7	13 h 05	63	Good coverage
May	25.2°C	13.7°C	199 mm	9.8	14 h 07	65	Good coverage
June	30.2°C	18.9°C	142 mm	8.4	14 h 41	53	Good coverage
July	32.8°C	21.3°C	95 mm	6.3	14 h 27	48	Good coverage
August	32.6°C	20.4°C	107 mm	6.4	13 h 34	49	Good coverage
September	28.4°C	16°C	100 mm	6	12 h 22	72	Good coverage
October	21.8°C	9°C	109 mm	6.9	11 h 11	68	Good coverage
November	15.3°C	2.7°C	59 mm	5	10 h 09	44	Good coverage
December	8.7°C	-2.9°C	56 mm	4.9	9 h 38	13	Good coverage

Records at COFFEYVILLE WTR WKS, 2000–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.9°C12 Jan 2017	-21.1°C7 Jan 2014	56 mm5 Jan 2005	118 mm2021 · driest 1 mm in 2012	26
February	30.0°C12 Feb 2017	-27.2°C10 Feb 2011	65 mm25 Feb 2020	135 mm2020 · driest 1 mm in 2006	26
March	33.9°C22 Mar 2026	-17.2°C4 Mar 2014	131 mm20 Mar 2011	215 mm2007 · driest 27 mm in 2002	27
April	33.3°C15 Apr 2006	-4.4°C8 Apr 2018	85 mm30 Apr 2012	266 mm2025 · driest 23 mm in 2014	27
May	34.4°C26 May 2006	1.1°C3 May 2013	138 mm27 May 2008	403 mm2019 · driest 73 mm in 2014	27
June	38.9°C30 Jun 2023	9.4°C1 Jun 2012	136 mm30 Jun 2007	450 mm2007 · driest 21 mm in 2016	27
July	42.8°C31 Jul 2012	11.7°C25 Jul 2003	87 mm27 Jul 2013	207 mm2013 · driest 5 mm in 2026	27
August	43.3°C5 Aug 2012	11.1°C31 Aug 2009	110 mm10 Aug 2008	245 mm2019 · driest 1 mm in 2000	26
September	41.1°C2 Sep 2000	3.9°C26 Sep 2000	166 mm2 Sep 2014	257 mm2014 · driest 5 mm in 2024	26
October	34.4°C4 Oct 2006	-3.9°C19 Oct 2022	172 mm10 Oct 2014	248 mm2014 · driest 17 mm in 2010	26
November	29.4°C10 Nov 2006	-11.7°C19 Nov 2014	88 mm27 Nov 2015	242 mm2024 · driest 6 mm in 2002	26
December	26.7°C28 Dec 2025	-21.1°C23 Dec 2022	63 mm27 Dec 2015	145 mm2015 · driest 0 mm in 2025	26

Typical days per month at COFFEYVILLE WTR WKS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	26	2	1
February	<1	<1	21	2	1
March	2	<1	10	3	<1
April	8	<1	2	3	<1
May	17	5	0	6	0
June	28	18	0	4	0
July	30	25	0	3	0
August	30	23	0	3	0
September	23	12	0	3	0
October	11	2	1	3	0
November	1	0	11	2	<1
December	0	0	22	2	<1

How often, not how much — every day in COFFEYVILLE WTR WKS’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%	14%	4%	8%	5.0–10.2°C
February	11%	16%	6%	12%	6.5–15.0°C
March	30%	22%	9%	20%	13.0–20.0°C
April	49%	25%	11%	26%	18.4–23.0°C
May	61%	31%	17%	39%	23.3–27.3°C
June	72%	28%	14%	32%	28.6–31.6°C
July	81%	20%	10%	18%	31.1–35.9°C
August	81%	19%	8%	17%	30.2–35.2°C
September	80%	18%	8%	16%	26.1–31.1°C
October	57%	20%	9%	20%	19.6–24.7°C
November	25%	16%	6%	14%	12.9–18.0°C
December	5%	14%	5%	10%	6.1–12.2°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.

2001Each stripe is one year’s mean temperature against the 25-year average. Warmest: 2001. Coolest: 2008.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4554654
NOAA station: USC00141673 · COFFEYVILLE WTR WKS
Station distance: 22.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 36.92°, 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 COFFEYVILLE WTR WKS is what differs

Coffeyville→South Coffeyville→Dearing→Tyro→Noxie→Jefferson→

Or put two places side by side: Wann vs Coffeyville

Best time to visitWann.