United States · 1991–2020

Best time to visit
Campbell.

May leads for comfortable weather in Campbell: typically 24.2°C by day, 9.6°C at night, with 13 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high24.2°C

Typical low9.6°C

Rain in May13 mm

Comfort

May

May · October · June

90climate match

Beach

July

July · August · September

78climate match

Outdoors

April

April · October · May

89climate match

The weakest month is December, scoring 32 against May’s 90 — days reach only 14.1°C, 10° 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

3314.8° / 4.1°

Feb

4216.7° / 5.2°

Mar

5719.1° / 6.2°

Apr

7621.3° / 7.1°

May

9024.2° / 9.6°

Jun

8127.6° / 11.4°

Jul

8029.3° / 13.3°

Aug

8029° / 13°

Sep

8128° / 12°

Oct

9024° / 9.5°

Nov

6118.1° / 6.1°

Dec

3214.1° / 4.2°

Monthly climate evidence for Campbell — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 39 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	14.8°C	4.1°C	123 mm	8.1	12.2°C	9 h 51	33	Strong coverage
February	16.7°C	5.2°C	118 mm	7.9	12.3°C	10 h 45	42	Good coverage
March	19.1°C	6.2°C	88 mm	7.4	12.3°C	11 h 51	57	Good coverage
April	21.3°C	7.1°C	36 mm	4.2	12.0°C	13 h 06	76	Strong coverage
May	24.2°C	9.6°C	13 mm	1.9	12.2°C	14 h 09	90	Strong coverage
June	27.6°C	11.4°C	3 mm	0.5	12.9°C	14 h 43	81	Strong coverage
July	29.3°C	13.3°C	0 mm	0	14.1°C	14 h 29	80	Strong coverage
August	29°C	13°C	1 mm	0.1	14.9°C	13 h 35	80	Strong coverage
September	28°C	12°C	1 mm	0.3	14.9°C	12 h 23	81	Good coverage
October	24°C	9.5°C	20 mm	1.9	14.2°C	11 h 10	90	Good coverage
November	18.1°C	6.1°C	50 mm	4.2	13.4°C	10 h 07	61	Strong coverage
December	14.1°C	4.2°C	117 mm	7.8	12.5°C	9 h 36	32	Good coverage

Records at LOS GATOS, 1893–2019
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	26.1°C8 Jan 1962	-7.8°C11 Jan 1949	174 mm21 Jan 1943	703 mm1911 · driest 0 mm in 2015	124
February	27.8°C17 Feb 1930	-6.1°C27 Feb 1962	125 mm24 Feb 1917	453 mm1915 · driest 0 mm in 1953	123
March	31.7°C17 Mar 1914	-2.8°C2 Mar 1953	102 mm15 Mar 1899	461 mm1907 · driest 0 mm in 1934	122
April	35.6°C29 Apr 1981	-1.1°C4 Apr 2017	94 mm29 Apr 1901	224 mm1958 · driest 0 mm in 1949	125
May	39.4°C30 May 1910	1.1°C1 May 1910	48 mm7 May 1905	110 mm1915 · driest 0 mm in 1975	123
June	45.6°C14 Jun 1961	1.7°C2 Jun 1933	29 mm4 Jun 2011	34 mm2011 · driest 0 mm in 1949	123
July	45.0°C14 Jul 1972	2.8°C26 Jul 1977	20 mm2 Jul 1980	21 mm1980 · driest 0 mm in 1934	123
August	41.7°C11 Aug 1959	3.9°C27 Aug 1978	20 mm30 Aug 1896	20 mm1896 · driest 0 mm in 2013	123
September	42.8°C2 Sep 1955	3.3°C26 Sep 1948	111 mm12 Sep 1918	174 mm1918 · driest 0 mm in 1979	121
October	39.4°C15 Oct 1961	-0.6°C29 Oct 1971	212 mm13 Oct 1962	286 mm1962 · driest 0 mm in 2002	123
November	30.6°C10 Nov 1955	-5.6°C19 Nov 2009	119 mm21 Nov 1900	269 mm1950 · driest 0 mm in 1959	122
December	28.3°C2 Dec 1958	-8.9°C22 Dec 1990	215 mm23 Dec 1955	675 mm1955 · driest 0 mm in 1989	123

Typical days per month at LOS GATOS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	5	4
February	<1	0	2	4
March	3	<1	<1	3
April	6	1	<1	1
May	12	4	0	<1
June	20	9	0	<1
July	27	12	0	0
August	27	11	0	0
September	22	10	0	0
October	11	3	0	<1
November	<1	0	1	1
December	0	0	5	3

How often, not how much — every day in LOS GATOS’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%	32%	15%	36%	11.7–15.9°C
February	14%	32%	15%	37%	13.8–18.1°C
March	32%	29%	12%	30%	15.6–21.0°C
April	54%	16%	5%	12%	18.6–23.6°C
May	78%	8%	2%	4%	20.9–26.1°C
June	95%	3%	<1%	<1%	25.2–29.6°C
July	100%	<1%	0%	0%	27.5–31.2°C
August	99%	<1%	<1%	<1%	27.0–30.8°C
September	96%	3%	<1%	1%	25.3–29.7°C
October	77%	9%	3%	7%	21.7–26.2°C
November	31%	19%	7%	20%	15.9–20.5°C
December	4%	27%	13%	30%	12.5–16.0°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.

1893Each stripe is one year’s mean temperature against the 113-year average. Warmest: 1959. Coolest: 1893.2016

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5333689
NOAA station: USC00045123 · LOS GATOS
Station distance: 6.2 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 37.29°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 39 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 LOS GATOS is what differs

Saratoga→Los Gatos→Monte Sereno→Cambrian Park→Lexington Hills→Alamitos→

Or put two places side by side: Campbell vs Saratoga

Best time to visitCampbell.

May

July

April

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Campbell.

The whole year,
without the guesswork.

Nearby, measured,
and named.