United States · 1991–2020

Best time to visit
Winlock.

July leads for comfortable weather in Winlock: typically 25.8°C by day, 12.3°C at night, with 13 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high25.8°C

Typical low12.3°C

Rain in July13 mm

Comfort

July

July · August · September

89climate match

Beach

August

August · July · September

67climate match

Outdoors

June

June · September · May

88climate match

The weakest month is January, scoring 5 against July’s 89 — days reach only 8.4°C, 16° 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

58.4° / 2°

Feb

1110.1° / 1.9°

Mar

1912.8° / 3°

Apr

3815.8° / 4.7°

May

6319.7° / 7.8°

Jun

8222.2° / 10.2°

Jul

8925.8° / 12.3°

Aug

8826.2° / 12.3°

Sep

8523.2° / 9.9°

Oct

4416.7° / 6.6°

Nov

610.9° / 3.6°

Dec

57.7° / 1.8°

Monthly climate evidence for Winlock — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	8.4°C	2°C	149 mm	17.6	8 h 57	5	Strong coverage
February	10.1°C	1.9°C	105 mm	13.6	10 h 14	11	Strong coverage
March	12.8°C	3°C	113 mm	16.1	11 h 45	19	Strong coverage
April	15.8°C	4.7°C	82 mm	13.3	13 h 30	38	Strong coverage
May	19.7°C	7.8°C	60 mm	9.7	14 h 58	63	Strong coverage
June	22.2°C	10.2°C	38 mm	6.2	15 h 48	82	Strong coverage
July	25.8°C	12.3°C	13 mm	2.4	15 h 28	89	Strong coverage
August	26.2°C	12.3°C	20 mm	3.2	14 h 11	88	Strong coverage
September	23.2°C	9.9°C	40 mm	5.4	12 h 29	85	Strong coverage
October	16.7°C	6.6°C	100 mm	11.6	10 h 49	44	Strong coverage
November	10.9°C	3.6°C	166 mm	16.8	9 h 20	6	Strong coverage
December	7.7°C	1.8°C	164 mm	17.6	8 h 36	5	Strong coverage

What has changed

Winlock runs -0.5°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

+0.2

Feb

-2.0

Mar

-1.0

Apr

-0.6

May

-0.2

Jun

-0.7

Jul

-0.3

Aug

+0.5

Sep

-0.1

Oct

-0.7

Nov

-0.3

Dec

-0.5

July daytime highs, 2011–2021. Last recorded: 26.6°C.

Records at CENTRALIA, 1893–2022
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.0°C31 Jan 1935	-20.0°C21 Jan 1930	105 mm9 Jan 1990	372 mm1990 · driest 9 mm in 1985	119
February	23.9°C27 Feb 1938	-17.8°C4 Feb 1989	85 mm8 Feb 1996	319 mm1999 · driest 4 mm in 1993	115
March	29.4°C19 Mar 1928	-10.6°C2 Mar 2004	72 mm13 Mar 1908	311 mm1916 · driest 9 mm in 1965	116
April	33.9°C28 Apr 1926	-6.7°C6 Apr 1910	69 mm4 Apr 1991	196 mm1996 · driest 8 mm in 1939	117
May	36.7°C28 May 1983	-2.8°C1 May 1954	35 mm5 May 1948	144 mm2010 · driest 3 mm in 2018	115
June	41.7°C28 Jun 2021	-0.6°C30 Jun 1919	43 mm7 Jun 1936	140 mm1937 · driest 0 mm in 1922	117
July	41.7°C29 Jul 2009	0.6°C1 Jul 1919	41 mm9 Jul 1995	71 mm1909 · driest 0 mm in 2013	117
August	39.4°C10 Aug 1981	1.7°C19 Aug 1916	64 mm10 Aug 1912	161 mm1912 · driest 0 mm in 1916	118
September	37.8°C2 Sep 1988	-4.4°C25 Sep 1908	51 mm18 Sep 2010	185 mm2013 · driest 0 mm in 2012	119
October	33.3°C1 Oct 1987	-6.7°C31 Oct 2002	82 mm31 Oct 1942	248 mm1967 · driest 7 mm in 1936	116
November	23.9°C3 Nov 1908	-15.0°C15 Nov 1955	101 mm24 Nov 1990	450 mm2006 · driest 16 mm in 1936	116
December	22.8°C13 Dec 1913	-17.8°C31 Dec 1978	100 mm9 Dec 1933	562 mm1933 · driest 39 mm in 2013	115

Typical days per month at CENTRALIA, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	10	5
February	0	0	10	4
March	<1	0	7	3
April	1	<1	3	2
May	5	1	<1	2
June	8	2	0	1
July	17	6	0	<1
August	19	7	0	<1
September	11	2	0	1
October	<1	<1	1	4
November	0	0	6	5
December	0	0	11	6

How often, not how much — every day in CENTRALIA’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	0%	55%	18%	72%	5.0–10.1°C
February	<1%	51%	14%	67%	7.6–12.3°C
March	6%	50%	13%	67%	10.5–15.0°C
April	21%	40%	7%	52%	14.0–18.7°C
May	42%	31%	5%	37%	17.6–22.4°C
June	61%	24%	4%	27%	20.7–25.0°C
July	86%	10%	2%	7%	23.6–27.7°C
August	85%	13%	3%	14%	23.6–27.8°C
September	64%	22%	6%	27%	20.3–24.9°C
October	19%	38%	11%	53%	15.0–18.3°C
November	1%	55%	20%	74%	9.4–12.8°C
December	<1%	57%	21%	76%	5.9–9.5°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.

1902Each stripe is one year’s mean temperature against the 105-year average. Warmest: 1998. Coolest: 1916.2020

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5816314
NOAA station: USC00451276 · CENTRALIA
Station distance: 25.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 46.49°, 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 CENTRALIA is what differs

Centralia→Chehalis→Grand Mound→Rochester→Fords Prairie→Napavine→

Or put two places side by side: Winlock vs Centralia

Best time to visitWinlock.