United States · 1991–2020

Best time to visit
Duncan.

October leads for comfortable weather in Duncan: typically 22.6°C by day, 10.5°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortOctober

Typical high22.6°C

Typical low10.5°C

Rain in October91 mm

Comfort

October

October · May · April

77climate match

Beach

June

June · September · August

73climate match

Outdoors

October

October · April · November

78climate match

The weakest month is January, scoring 17 against October’s 77 — days reach only 11.4°C, 13° below the 24°C the score treats as ideal, and nights drop to 0.4°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

1711.4° / 0.4°

Feb

2913.7° / 1.9°

Mar

4617.8° / 5.3°

Apr

7222.7° / 9.5°

May

7626.6° / 14.4°

Jun

5830.4° / 18.9°

Jul

4432.2° / 20.9°

Aug

5031.2° / 20.4°

Sep

7228° / 17.1°

Oct

7722.6° / 10.5°

Nov

4617° / 4.9°

Dec

2212.5° / 1.8°

Monthly climate evidence for Duncan — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	11.4°C	0.4°C	105 mm	8.7	10 h 03	17	Strong coverage
February	13.7°C	1.9°C	98 mm	7.8	10 h 52	29	Strong coverage
March	17.8°C	5.3°C	114 mm	8.8	11 h 52	46	Strong coverage
April	22.7°C	9.5°C	103 mm	8.3	13 h 01	72	Strong coverage
May	26.6°C	14.4°C	103 mm	8.3	13 h 58	76	Strong coverage
June	30.4°C	18.9°C	99 mm	8.6	14 h 29	58	Strong coverage
July	32.2°C	20.9°C	122 mm	9.3	14 h 17	44	Strong coverage
August	31.2°C	20.4°C	118 mm	8.7	13 h 28	50	Strong coverage
September	28°C	17.1°C	95 mm	6.4	12 h 21	72	Strong coverage
October	22.6°C	10.5°C	91 mm	6	11 h 15	77	Strong coverage
November	17°C	4.9°C	97 mm	6.9	10 h 17	46	Strong coverage
December	12.5°C	1.8°C	116 mm	8.2	9 h 49	22	Strong coverage

What has changed

Duncan 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

+1.3

Feb

+2.6

Mar

+1.2

Apr

+0.8

May

+0.7

Jun

+1.0

Jul

+1.5

Aug

+0.6

Sep

+1.2

Oct

+1.2

Nov

+0.4

Dec

+1.9

October daytime highs, 2011–2025. Last recorded: 22.0°C.

Records at GREER, 1962–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C31 Jan 1975	-21.1°C30 Jan 1966	111 mm9 Jan 2024	262 mm2024 · driest 7 mm in 1981	64
February	27.2°C4 Feb 2025	-13.3°C25 Feb 1967	136 mm6 Feb 2020	244 mm2020 · driest 14 mm in 1978	64
March	31.7°C23 Mar 1995	-11.7°C3 Mar 1980	99 mm21 Mar 2017	289 mm1980 · driest 29 mm in 1985	64
April	33.9°C27 Apr 1986	-4.4°C8 Apr 2007	112 mm27 Apr 2023	287 mm1964 · driest 18 mm in 1976	64
May	36.1°C28 May 1967	-0.6°C8 May 1989	83 mm27 May 1986	319 mm2020 · driest 28 mm in 1965	64
June	40.6°C29 Jun 2012	4.4°C1 Jun 1972	107 mm16 Jun 1969	257 mm1994 · driest 3 mm in 2008	64
July	41.7°C1 Jul 2012	12.2°C1 Jul 1979	119 mm7 Jul 2005	367 mm2013 · driest 19 mm in 1993	64
August	40.6°C10 Aug 2007	11.1°C29 Aug 1968	237 mm26 Aug 1995	441 mm1995 · driest 20 mm in 1999	63
September	36.7°C2 Sep 2011	2.2°C30 Sep 1967	113 mm27 Sep 2024	296 mm1975 · driest 4 mm in 2005	63
October	36.7°C3 Oct 2019	-3.9°C29 Oct 1976	114 mm12 Oct 1990	260 mm1964 · driest 0 mm in 2000	64
November	29.4°C2 Nov 1974	-11.1°C25 Nov 1970	83 mm2 Nov 2015	232 mm2015 · driest 19 mm in 2017	64
December	26.1°C10 Dec 2007	-15.0°C26 Dec 1985	84 mm9 Dec 2004	291 mm2018 · driest 10 mm in 1965	64

Typical days per month at GREER, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	<1	0	16	4	1
February	<1	0	12	3	<1
March	4	<1	6	4	<1
April	11	1	<1	4	0
May	23	7	0	3	0
June	28	19	0	3	0
July	30	25	0	4	0
August	30	22	0	3	0
September	24	11	0	3	0
October	10	<1	<1	2	0
November	1	0	6	3	<1
December	<1	0	14	4	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 79); on 2011–2025 it is October (82). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in GREER’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	5%	28%	11%	33%	8.0–13.5°C
February	12%	28%	13%	32%	10.3–15.8°C
March	32%	29%	13%	31%	15.1–20.6°C
April	58%	25%	11%	28%	20.6–24.7°C
May	69%	29%	11%	31%	24.7–28.3°C
June	72%	27%	11%	32%	28.1–32.0°C
July	69%	31%	12%	38%	29.8–33.7°C
August	73%	27%	10%	30%	28.8–32.3°C
September	77%	22%	10%	20%	26.0–29.9°C
October	63%	19%	8%	20%	20.8–24.8°C
November	27%	23%	10%	23%	15.1–19.6°C
December	7%	26%	12%	30%	9.4–14.8°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.

1963Each stripe is one year’s mean temperature against the 63-year average. Warmest: 2016. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4577083
NOAA station: USW00003870 · GREER
Station distance: 9.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 34.94°, 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 GREER is what differs

Greer→Taylors→Five Forks→Lyman→Wellford→Startex→

Or put two places side by side: Duncan vs Greer

Best time to visitDuncan.

October

June

October

The whole year,without the guesswork.

Duncan runs +1.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Duncan.

The whole year,
without the guesswork.

Duncan runs +1.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.