United States · 1991–2020

Best time to visit
Harviell.

September leads for comfortable weather in Harviell: typically 28.3°C by day, 16°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high28.3°C

Typical low16°C

Rain in September90 mm

Comfort

September

September · October · May

74climate match

Beach

August

August · June · September

76climate match

Outdoors

October

October · April · September

77climate match

The weakest month is January, scoring 5 against September’s 74 — days reach only 6.6°C, 17° 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

56.6° / -3.5°

Feb

149.7° / -1.4°

Mar

3115° / 3.2°

Apr

5821.1° / 8.4°

May

6626.2° / 13.9°

Jun

5630.8° / 19.4°

Jul

4532.6° / 21.5°

Aug

5431.9° / 20.3°

Sep

7428.3° / 16°

Oct

7122.2° / 8.9°

Nov

3114.5° / 3.1°

Dec

58.3° / -1.5°

Monthly climate evidence for Harviell — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6.6°C	-3.5°C	93 mm	6.8	9 h 54	5	Strong coverage
February	9.7°C	-1.4°C	84 mm	6	10 h 47	14	Strong coverage
March	15°C	3.2°C	125 mm	8.8	11 h 51	31	Strong coverage
April	21.1°C	8.4°C	151 mm	8.4	13 h 05	58	Strong coverage
May	26.2°C	13.9°C	165 mm	10	14 h 06	66	Strong coverage
June	30.8°C	19.4°C	104 mm	7	14 h 39	56	Strong coverage
July	32.6°C	21.5°C	119 mm	7.2	14 h 26	45	Strong coverage
August	31.9°C	20.3°C	89 mm	6.4	13 h 33	54	Strong coverage
September	28.3°C	16°C	90 mm	5.2	12 h 22	74	Strong coverage
October	22.2°C	8.9°C	97 mm	6.3	11 h 11	71	Strong coverage
November	14.5°C	3.1°C	119 mm	7.2	10 h 10	31	Strong coverage
December	8.3°C	-1.5°C	108 mm	7.1	9 h 40	5	Strong coverage

What has changed

Harviell runs +0.7°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

+1.1

Feb

+1.0

Mar

+0.9

Apr

+0.1

May

+0.4

Jun

+1.1

Jul

+0.4

Aug

0.0

Sep

+1.3

Oct

+0.8

Nov

-0.2

Dec

+1.5

September daytime highs, 2011–2023. Last recorded: 29.4°C.

Records at POPLAR BLUFF, 1893–2024
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.6°C24 Jan 1943	-30.6°C18 Jan 1930	145 mm30 Jan 1969	333 mm1937 · driest 5 mm in 1943	120
February	28.3°C13 Feb 1962	-31.7°C13 Feb 1899	99 mm23 Feb 1979	337 mm1989 · driest 5 mm in 1947	119
March	33.3°C24 Mar 1929	-17.8°C3 Mar 1943	168 mm28 Mar 1977	329 mm2008 · driest 14 mm in 1918	117
April	34.4°C27 Apr 1927	-5.0°C1 Apr 1919	133 mm28 Apr 2014	543 mm2011 · driest 0 mm in 2023	117
May	37.8°C30 May 1934	-2.2°C1 May 1903	140 mm18 May 2017	475 mm2017 · driest 9 mm in 2012	114
June	43.3°C20 Jun 1936	5.0°C16 Jun 1917	121 mm26 Jun 2024	379 mm1928 · driest 6 mm in 1991	115
July	44.4°C12 Jul 1901	8.9°C23 Jul 1947	140 mm4 Jul 1937	304 mm1988 · driest 4 mm in 1934	115
August	44.4°C9 Aug 1930	6.7°C28 Aug 1967	144 mm23 Aug 1942	377 mm1915 · driest 7 mm in 2007	117
September	42.2°C7 Sep 1925	-0.6°C30 Sep 1899	157 mm2 Sep 1936	289 mm1965 · driest 0 mm in 2019	117
October	35.6°C2 Oct 1953	-8.3°C29 Oct 1952	125 mm6 Oct 1998	389 mm2009 · driest 0 mm in 1963	117
November	29.4°C4 Nov 1924	-15.6°C25 Nov 1950	85 mm20 Nov 1931	311 mm2015 · driest 2 mm in 2023	118
December	26.1°C3 Dec 2021	-23.9°C24 Dec 2022	177 mm14 Dec 2013	258 mm1982 · driest 2 mm in 1958	115

Typical days per month at POPLAR BLUFF, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	23	3	<1
February	<1	0	17	3	<1
March	2	0	9	4	<1
April	8	<1	1	4	0
May	20	7	0	5	0
June	27	19	0	3	0
July	30	25	0	3	0
August	30	23	0	3	0
September	24	11	0	3	0
October	11	2	<1	3	0
November	1	0	9	4	<1
December	0	0	20	4	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 80); on 2011–2025 it is October (79). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in POPLAR BLUFF’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	2%	22%	10%	21%	3.7–10.4°C
February	6%	23%	10%	20%	5.6–13.6°C
March	20%	27%	13%	30%	12.0–18.1°C
April	48%	29%	13%	32%	19.2–24.1°C
May	68%	28%	13%	33%	24.1–28.6°C
June	76%	24%	11%	24%	29.0–33.2°C
July	79%	21%	10%	17%	31.2–35.2°C
August	79%	21%	9%	21%	30.3–34.3°C
September	79%	19%	9%	17%	26.4–31.2°C
October	60%	19%	9%	20%	20.3–25.9°C
November	20%	22%	11%	20%	12.4–17.9°C
December	3%	23%	11%	24%	5.7–12.8°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.

1894Each stripe is one year’s mean temperature against the 91-year average. Warmest: 1954. Coolest: 1917.2022

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4389747
NOAA station: USC00236791 · POPLAR BLUFF
Station distance: 11.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 27 usable years
Daylight: Calculated from latitude 36.66°, 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 POPLAR BLUFF is what differs

Poplar Bluff→Angus→Ashcroft Addition→Beaverdam→Belcher (historical)→Booser (historical)→

Or put two places side by side: Harviell vs Poplar Bluff

Best time to visitHarviell.