United States · 1991–2020

Best time to visit
Coles Valley.

June leads for comfortable weather in Coles Valley: typically 24.5°C by day, 10.5°C at night, with 28 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.5°C

Typical low10.5°C

Rain in June28 mm

Comfort

June

June · September · July

89climate match

Beach

July

July · August · September

77climate match

Outdoors

June

June · May · October

83climate match

The weakest month is January, scoring 5 against June’s 89 — days reach only 9.4°C, 15° 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

59.4° / 1.9°

Feb

1811.7° / 2.1°

Mar

2714.5° / 3°

Apr

4317.1° / 4.7°

May

6921.1° / 7.7°

Jun

8924.5° / 10.5°

Jul

7929.3° / 13.2°

Aug

7729.6° / 12.6°

Sep

8226.3° / 9.7°

Oct

6019.4° / 6.3°

Nov

1812.4° / 3.9°

Dec

58.7° / 2°

Monthly climate evidence for Coles Valley — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9.4°C	1.9°C	137 mm	15	9 h 18	5	Strong coverage
February	11.7°C	2.1°C	104 mm	12.8	10 h 26	18	Strong coverage
March	14.5°C	3°C	102 mm	14.4	11 h 47	27	Strong coverage
April	17.1°C	4.7°C	81 mm	13.2	13 h 21	43	Strong coverage
May	21.1°C	7.7°C	56 mm	9.1	14 h 40	69	Strong coverage
June	24.5°C	10.5°C	28 mm	4.9	15 h 23	89	Strong coverage
July	29.3°C	13.2°C	7 mm	1.3	15 h 06	79	Strong coverage
August	29.6°C	12.6°C	8 mm	1.3	13 h 58	77	Strong coverage
September	26.3°C	9.7°C	24 mm	3.8	12 h 27	82	Strong coverage
October	19.4°C	6.3°C	65 mm	8.3	10 h 57	60	Strong coverage
November	12.4°C	3.9°C	133 mm	14.5	9 h 38	18	Strong coverage
December	8.7°C	2°C	173 mm	16.2	8 h 59	5	Strong coverage

Records at WINCHESTER, 1989–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C18 Jan 2018	-7.2°C15 Jan 1997	57 mm18 Jan 2006	336 mm2006 · driest 39 mm in 2015	37
February	23.9°C20 Feb 1995	-7.8°C14 Feb 1990	57 mm15 Feb 2011	238 mm2019 · driest 17 mm in 2022	37
March	27.8°C26 Mar 2025	-3.9°C4 Mar 2019	59 mm16 Mar 2025	248 mm2012 · driest 45 mm in 1990	37
April	33.3°C29 Apr 2023	-3.3°C18 Apr 2002	56 mm13 Apr 2000	167 mm2003 · driest 11 mm in 2021	37
May	38.3°C17 May 2008	-1.1°C2 May 2002	57 mm10 May 2005	191 mm1998 · driest 3 mm in 2026	36
June	44.4°C28 Jun 2021	2.2°C7 Jun 1999	33 mm29 Jun 1992	91 mm1992 · driest 0 mm in 2003	37
July	42.8°C7 Jul 2024	6.7°C5 Jul 1999	23 mm19 Jul 2011	37 mm2011 · driest 0 mm in 2023	37
August	43.9°C11 Aug 2024	6.7°C25 Aug 1992	24 mm24 Aug 2024	45 mm1990 · driest 0 mm in 1994	36
September	39.4°C6 Sep 2024	1.7°C28 Sep 1999	28 mm30 Sep 2013	110 mm2013 · driest 0 mm in 1993	36
October	35.0°C1 Oct 1991	-6.1°C31 Oct 2002	45 mm14 Oct 2016	252 mm2016 · driest 12 mm in 2013	37
November	25.6°C5 Nov 2020	-6.7°C1 Nov 2002	120 mm19 Nov 1996	289 mm1998 · driest 41 mm in 1993	37
December	19.4°C11 Dec 1995	-13.9°C23 Dec 1990	62 mm14 Dec 2003	420 mm1996 · driest 23 mm in 1989	37

Typical days per month at WINCHESTER, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	10	5
February	0	0	7	4
March	<1	0	5	3
April	2	<1	1	2
May	8	2	<1	1
June	14	4	0	<1
July	26	14	0	<1
August	27	14	0	<1
September	19	7	0	<1
October	4	<1	1	2
November	0	0	4	4
December	0	0	9	6

How often, not how much — every day in WINCHESTER’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%	48%	15%	64%	7.4–11.2°C
February	1%	45%	12%	63%	9.7–13.5°C
March	10%	46%	11%	62%	12.2–16.3°C
April	25%	38%	6%	51%	15.0–19.2°C
May	50%	26%	4%	30%	18.7–23.2°C
June	77%	16%	2%	16%	22.3–27.4°C
July	96%	4%	<1%	2%	27.2–32.2°C
August	95%	6%	1%	5%	27.8–32.1°C
September	84%	14%	2%	15%	24.7–28.0°C
October	37%	28%	7%	38%	17.6–22.0°C
November	2%	47%	15%	67%	10.1–14.1°C
December	0%	51%	18%	67%	7.4–10.6°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.

1990Each stripe is one year’s mean temperature against the 35-year average. Warmest: 2015. Coolest: 1993.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5720083
NOAA station: USC00359461 · WINCHESTER
Station distance: 15.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 43.37°, 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 WINCHESTER is what differs

Sutherlin→Roseburg North→Oakland→Fair Oaks→Umpqua→Cleveland→

Or put two places side by side: Coles Valley vs Sutherlin

Best time to visitColes Valley.

June

July

June

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Coles Valley.

The whole year,
without the guesswork.

Nearby, measured,
and named.