United States · 1991–2020

Best time to visit
Duffield.

August leads for comfortable weather in Duffield: typically 26.2°C by day, 15.3°C at night, with 98 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high26.2°C

Typical low15.3°C

Rain in August98 mm

Comfort

August

August · June · September

78climate match

Beach

July

July · August · June

64climate match

Outdoors

May

May · October · September

72climate match

The weakest month is January, scoring 5 against August’s 78 — days reach only 2.3°C, 22° 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

52.3° / -6.7°

Feb

53.4° / -6.3°

Mar

58.6° / -2.5°

Apr

3415.3° / 3.3°

May

5920.7° / 9.2°

Jun

7725.2° / 14.2°

Jul

7127.5° / 16.3°

Aug

7826.2° / 15.3°

Sep

7423.2° / 11.9°

Oct

4516.5° / 6.3°

Nov

1710.2° / 0.2°

Dec

54.6° / -3.6°

Monthly climate evidence for Duffield — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.3°C	-6.7°C	92 mm	9.3	9 h 38	5	Good coverage
February	3.4°C	-6.3°C	71 mm	7.9	10 h 37	5	Good coverage
March	8.6°C	-2.5°C	112 mm	8.7	11 h 49	5	Good coverage
April	15.3°C	3.3°C	106 mm	10.1	13 h 12	34	Good coverage
May	20.7°C	9.2°C	119 mm	11.9	14 h 21	59	Good coverage
June	25.2°C	14.2°C	116 mm	9.9	14 h 59	77	Good coverage
July	27.5°C	16.3°C	100 mm	9.7	14 h 44	71	Good coverage
August	26.2°C	15.3°C	98 mm	8.5	13 h 44	78	Good coverage
September	23.2°C	11.9°C	129 mm	8.5	12 h 24	74	Good coverage
October	16.5°C	6.3°C	104 mm	8.1	11 h 05	45	Good coverage
November	10.2°C	0.2°C	84 mm	7.1	9 h 55	17	Good coverage
December	4.6°C	-3.6°C	98 mm	8.6	9 h 21	5	Good coverage

Records at S MTN, 1943–2022
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.0°C9 Jan 2008	-24.4°C31 Jan 1948	61 mm25 Jan 2010	133 mm2019 · driest 33 mm in 2021	20
February	23.9°C22 Feb 2018	-22.8°C24 Feb 2015	64 mm14 Feb 2007	125 mm2016 · driest 32 mm in 2015	18
March	25.0°C24 Mar 2012	-21.7°C6 Mar 2015	64 mm22 Mar 2019	145 mm2010 · driest 22 mm in 2006	18
April	30.6°C22 Apr 1976	-8.9°C4 Apr 1965	77 mm17 Apr 2011	238 mm2011 · driest 38 mm in 2016	21
May	33.3°C24 May 1964	-3.9°C10 May 1966	109 mm16 May 2014	193 mm2012 · driest 45 mm in 1966	21
June	36.7°C29 Jun 1969	4.4°C4 Jun 2019	143 mm26 Jun 2006	306 mm2006 · driest 30 mm in 1965	19
July	36.7°C19 Jul 1969	6.7°C2 Jul 2007	88 mm22 Jul 2018	262 mm2018 · driest 21 mm in 2011	18
August	35.0°C16 Aug 1970	7.2°C15 Aug 2013	61 mm13 Aug 2013	186 mm2012 · driest 12 mm in 2006	17
September	32.8°C3 Sep 2010	2.2°C30 Sep 2005	122 mm15 Sep 1966	291 mm2011 · driest 11 mm in 2005	19
October	30.0°C3 Oct 2019	-7.8°C30 Oct 2011	135 mm30 Oct 2012	281 mm1976 · driest 1 mm in 1963	20
November	23.9°C9 Nov 2020	-11.7°C20 Nov 2008	60 mm23 Nov 2011	219 mm2018 · driest 21 mm in 1973	17
December	20.6°C2 Dec 2006	-18.3°C14 Dec 2005	57 mm25 Dec 2020	171 mm2008 · driest 25 mm in 1947	16

Typical days per month at S MTN, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	3	4
February	0	0	25	2	4
March	<1	0	22	3	2
April	2	<1	9	4	<1
May	8	<1	<1	5	<1
June	17	3	0	4	0
July	26	7	0	4	0
August	22	3	0	4	0
September	11	2	0	3	0
October	2	<1	4	3	<1
November	0	0	16	3	<1
December	0	0	25	4	2

How often, not how much — every day in S MTN’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%	28%	9%	34%	-0.6–4.7°C
February	<1%	28%	9%	33%	-0.8–6.5°C
March	6%	29%	11%	36%	5.2–11.8°C
April	17%	33%	12%	42%	12.4–18.0°C
May	41%	36%	13%	48%	18.7–23.4°C
June	63%	31%	12%	37%	24.5–28.0°C
July	66%	29%	10%	35%	26.4–29.9°C
August	70%	27%	10%	31%	24.4–27.8°C
September	61%	25%	10%	30%	21.6–24.9°C
October	26%	24%	10%	25%	14.9–18.9°C
November	4%	26%	10%	26%	7.5–12.7°C
December	0%	26%	10%	28%	1.5–7.6°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4557622
NOAA station: USC00368308 · S MTN
Station distance: 7.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 39.88°, 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 S MTN is what differs

Mont Alto→Altenwald→Biesecker Gap→Brownsville→Caledonia Park→East Fayetteville→

Or put two places side by side: Duffield vs Mont Alto

Best time to visitDuffield.

August

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Duffield.

The whole year,
without the guesswork.

Nearby, measured,
and named.