United States · 1991–2020

Best time to visit
Clayton.

September leads for comfortable weather in Clayton: typically 23.2°C by day, 4.3°C at night, with 20 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high23.2°C

Typical low4.3°C

Rain in September20 mm

Comfort

September

September · June · July

78climate match

Beach

July

July · August · June

65climate match

Outdoors

May

May · September · June

80climate match

The weakest month is January, scoring 5 against September’s 78 — days reach only 1°C, 23° 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

51° / -5.9°

Feb

53.7° / -5.9°

Mar

89° / -2.9°

Apr

3414.2° / -0.2°

May

5919.5° / 3.9°

Jun

7723° / 6.8°

Jul

7129.3° / 8.9°

Aug

7129.2° / 8.5°

Sep

7823.2° / 4.3°

Oct

3414.2° / -0.3°

Nov

55.8° / -3°

Dec

50.8° / -6°

Monthly climate evidence for Clayton — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	1°C	-5.9°C	70 mm	11.9	8 h 47	5	Good coverage
February	3.7°C	-5.9°C	45 mm	8.3	10 h 08	5	Good coverage
March	9°C	-2.9°C	60 mm	10	11 h 44	8	Good coverage
April	14.2°C	-0.2°C	44 mm	8.4	13 h 34	34	Good coverage
May	19.5°C	3.9°C	46 mm	8	15 h 08	59	Good coverage
June	23°C	6.8°C	47 mm	6.6	16 h 01	77	Good coverage
July	29.3°C	8.9°C	12 mm	2.3	15 h 40	71	Good coverage
August	29.2°C	8.5°C	16 mm	2.7	14 h 18	71	Good coverage
September	23.2°C	4.3°C	20 mm	3.5	12 h 31	78	Good coverage
October	14.2°C	-0.3°C	50 mm	7.6	10 h 45	34	Good coverage
November	5.8°C	-3°C	71 mm	11.2	9 h 11	5	Good coverage
December	0.8°C	-6°C	80 mm	11.3	8 h 24	5	Good coverage

Records at DEER PARK AP, 1998–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	12.2°C26 Jan 2003	-33.3°C5 Jan 2004	51 mm10 Jan 2006	234 mm2006 · driest 22 mm in 2001	28
February	15.6°C28 Feb 2020	-25.5°C21 Feb 2018	31 mm28 Feb 2022	152 mm1999 · driest 3 mm in 2005	28
March	23.3°C26 Mar 2025	-24.4°C11 Mar 2009	29 mm27 Mar 2005	132 mm2017 · driest 12 mm in 2021	28
April	29.4°C20 Apr 2016	-10.6°C1 Apr 2008	32 mm13 Apr 2000	89 mm2000 · driest 7 mm in 2021	28
May	32.8°C18 May 2006	-7.7°C1 May 2013	31 mm17 May 2019	100 mm2020 · driest 11 mm in 2021	28
June	43.9°C29 Jun 2021	-1.7°C8 Jun 2026	44 mm25 Jun 1999	112 mm2012 · driest 2 mm in 2019	28
July	41.1°C21 Jul 2024	0.0°C31 Jul 2006	23 mm9 Jul 2005	52 mm2016 · driest 0 mm in 2003	28
August	40.6°C10 Aug 2018	-0.6°C29 Aug 2010	33 mm24 Aug 2004	65 mm2004 · driest 1 mm in 2011	27
September	37.8°C2 Sep 2025	-7.8°C23 Sep 2000	26 mm8 Sep 2003	61 mm2013 · driest 0 mm in 1999	27
October	28.3°C6 Oct 2022	-17.8°C31 Oct 2002	33 mm13 Oct 2016	192 mm2016 · driest 5 mm in 2002	27
November	17.8°C8 Nov 2016	-27.2°C24 Nov 2010	29 mm19 Nov 2012	146 mm2024 · driest 24 mm in 2019	28
December	15.0°C1 Dec 2021	-27.2°C20 Dec 2008	37 mm27 Dec 2022	147 mm2015 · driest 19 mm in 2013	28

Typical days per month at DEER PARK AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	28	2
February	0	0	25	1
March	0	0	25	2
April	<1	0	18	1
May	5	<1	7	1
June	11	3	<1	1
July	26	16	<1	<1
August	26	15	<1	<1
September	12	4	4	<1
October	<1	0	17	2
November	0	0	22	2
December	0	0	28	3

How often, not how much — every day in DEER PARK AP’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%	37%	6%	48%	-1.0–2.9°C
February	0%	29%	3%	36%	1.5–7.0°C
March	1%	30%	5%	40%	6.8–11.4°C
April	13%	26%	3%	29%	11.9–16.3°C
May	42%	24%	3%	27%	16.9–22.0°C
June	67%	21%	4%	18%	20.8–26.5°C
July	93%	7%	1%	3%	27.4–32.0°C
August	91%	9%	1%	4%	28.0–30.2°C
September	73%	11%	2%	10%	21.0–26.3°C
October	17%	23%	5%	28%	12.6–16.8°C
November	0%	37%	7%	50%	3.7–7.9°C
December	0%	37%	8%	51%	-1.4–3.0°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.

1999Each stripe is one year’s mean temperature against the 27-year average. Warmest: 2025. Coolest: 2008.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5790224
NOAA station: USW00094119 · DEER PARK AP
Station distance: 10 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 48.00°, 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 DEER PARK AP is what differs

Deer Park→Loon Lake→Buckeye→Chattaroy→Denison→Elk→

Or put two places side by side: Clayton vs Deer Park

Best time to visitClayton.

September

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Clayton.

The whole year,
without the guesswork.

Nearby, measured,
and named.