United States · 1991–2020

Best time to visit
Arnold.

June leads for comfortable weather in Arnold: typically 24°C by day, 6.5°C at night, with 14 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24°C

Typical low6.5°C

Rain in June14 mm

Comfort

June

June · July · August

85climate match

Beach

July

July · August · September

65climate match

Outdoors

June

June · May · October

82climate match

The weakest month is January, scoring 5 against June’s 85 — days reach only 12.2°C, 12° below the 24°C the score treats as ideal, and 266 mm of rain falls.

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

512.2° / 0°

Feb

513.6° / 0.8°

Mar

1315.1° / 1.5°

Apr

3616.5° / 2.2°

May

6420.6° / 4.3°

Jun

8524° / 6.5°

Jul

7228.9° / 8.6°

Aug

7128.7° / 7.2°

Sep

7027.8° / 5.1°

Oct

6522.4° / 2.6°

Nov

2515.6° / 1.3°

Dec

511.7° / -0.5°

Monthly climate evidence for Arnold — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 43 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	12.2°C	0°C	266 mm	14.4	11.5°C	9 h 40	5	Good coverage
February	13.6°C	0.8°C	227 mm	13.5	11.5°C	10 h 39	5	Good coverage
March	15.1°C	1.5°C	210 mm	13.2	11.2°C	11 h 49	13	Good coverage
April	16.5°C	2.2°C	108 mm	10	10.9°C	13 h 11	36	Good coverage
May	20.6°C	4.3°C	58 mm	5.7	11.0°C	14 h 19	64	Good coverage
June	24°C	6.5°C	14 mm	1.7	10.9°C	14 h 57	85	Good coverage
July	28.9°C	8.6°C	1 mm	0.1	11.7°C	14 h 42	72	Good coverage
August	28.7°C	7.2°C	2 mm	0.2	12.5°C	13 h 43	71	Good coverage
September	27.8°C	5.1°C	5 mm	0.9	12.9°C	12 h 24	70	Good coverage
October	22.4°C	2.6°C	76 mm	4.8	12.8°C	11 h 05	65	Good coverage
November	15.6°C	1.3°C	146 mm	11.3	12.5°C	9 h 57	25	Good coverage
December	11.7°C	-0.5°C	306 mm	14.6	12.0°C	9 h 23	5	Good coverage

Records at WILLITS 1 NE, 1902–2012
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C8 Jan 1962	-11.1°C30 Jan 1980	150 mm16 Jan 1974	737 mm1995 · driest 21 mm in 1984	52
February	28.9°C25 Feb 1905	-10.6°C6 Feb 1989	169 mm8 Feb 1960	675 mm1904 · driest 6 mm in 1988	56
March	32.2°C7 Mar 1905	-7.2°C8 Mar 2002	115 mm29 Mar 1974	517 mm1904 · driest 18 mm in 1994	55
April	36.7°C10 Apr 1908	-6.7°C3 Apr 1907	61 mm1 Apr 1974	285 mm2003 · driest 3 mm in 1985	55
May	37.8°C22 May 1904	-6.1°C11 May 1907	66 mm18 May 2005	213 mm1990 · driest 0 mm in 1966	56
June	40.6°C28 Jun 1904	-6.7°C11 Jun 1907	30 mm9 Jun 2005	70 mm2005 · driest 0 mm in 1979	54
July	44.4°C24 Jul 1902	-3.9°C8 Jul 1907	32 mm8 Jul 1974	32 mm1974 · driest 0 mm in 2005	55
August	41.7°C8 Aug 1981	-1.7°C29 Aug 1907	33 mm20 Aug 1968	54 mm1968 · driest 0 mm in 2001	53
September	40.6°C4 Sep 1988	-6.7°C17 Sep 1907	43 mm26 Sep 1972	125 mm1986 · driest 0 mm in 1994	54
October	38.9°C2 Oct 1980	-8.3°C29 Oct 1971	120 mm24 Oct 2010	289 mm1962 · driest 0 mm in 1978	53
November	32.2°C1 Nov 1966	-10.6°C11 Nov 1978	123 mm8 Nov 1902	526 mm1903 · driest 19 mm in 1990	51
December	29.4°C2 Dec 1907	-15.0°C9 Dec 1972	224 mm22 Dec 1964	798 mm1964 · driest 5 mm in 1989	52

Typical days per month at WILLITS 1 NE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	17	7
February	<1	0	13	7
March	1	0	12	6
April	2	<1	9	3
May	7	2	3	2
June	12	4	<1	<1
July	25	14	0	0
August	25	12	0	<1
September	21	12	<1	<1
October	11	3	8	2
November	1	0	12	5
December	0	0	19	8

How often, not how much — every day in WILLITS 1 NE’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	4%	41%	23%	50%	10.8–14.9°C
February	14%	40%	23%	49%	11.6–17.6°C
March	19%	41%	22%	49%	12.7–18.1°C
April	33%	26%	10%	30%	15.0–21.7°C
May	58%	14%	4%	12%	18.7–24.8°C
June	85%	5%	1%	1%	23.3–28.8°C
July	99%	<1%	<1%	0%	27.3–31.9°C
August	97%	2%	<1%	1%	27.0–31.6°C
September	92%	5%	2%	6%	25.3–30.9°C
October	66%	18%	8%	21%	20.9–26.2°C
November	19%	38%	20%	49%	13.6–18.4°C
December	2%	43%	25%	52%	9.9–14.5°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.

1961Each stripe is one year’s mean temperature against the 38-year average. Warmest: 1981. Coolest: 2007.2011

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5324699
NOAA station: USC00049684 · WILLITS 1 NE
Station distance: 11.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 39.52°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 43 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
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 WILLITS 1 NE is what differs

Willits→Brooktrails→Burbeck→Cameron→Clare Mill→Crowley→

Or put two places side by side: Arnold vs Willits

Best time to visitArnold.

June

July

June

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Arnold.

The whole year,
without the guesswork.

Nearby, measured,
and named.