United States · 1991–2020

Best time to visit
Duarte.

May leads for comfortable weather in Duarte: typically 26°C by day, 13.5°C at night, with 12 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high26°C

Typical low13.5°C

Rain in May12 mm

Comfort

May

May · April · November

91climate match

Beach

July

July · June · August

85climate match

Outdoors

December

December · April · November

89climate match

The weakest month is February, scoring 64 against May’s 91 — nights drop to 7.7°C, and 118 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

6521.4° / 6.8°

Feb

6421.4° / 7.7°

Mar

8123.2° / 9.3°

Apr

9024.6° / 10.5°

May

9126° / 13.5°

Jun

8528.2° / 15.4°

Jul

7230.9° / 17.6°

Aug

6832.3° / 17.6°

Sep

7231.5° / 16.6°

Oct

8328.1° / 13.3°

Nov

8824.4° / 9.4°

Dec

7321° / 6.5°

Monthly climate evidence for Duarte — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	21.4°C	6.8°C	99 mm	5.4	10 h 06	65	Good coverage
February	21.4°C	7.7°C	118 mm	6.1	10 h 54	64	Good coverage
March	23.2°C	9.3°C	72 mm	4.3	11 h 52	81	Good coverage
April	24.6°C	10.5°C	20 mm	1.8	12 h 59	90	Good coverage
May	26°C	13.5°C	12 mm	1	13 h 55	91	Good coverage
June	28.2°C	15.4°C	4 mm	0.4	14 h 25	85	Good coverage
July	30.9°C	17.6°C	1 mm	0.3	14 h 13	72	Good coverage
August	32.3°C	17.6°C	4 mm	0	13 h 25	68	Good coverage
September	31.5°C	16.6°C	4 mm	0.3	12 h 21	72	Good coverage
October	28.1°C	13.3°C	15 mm	1.3	11 h 16	83	Good coverage
November	24.4°C	9.4°C	21 mm	1.9	10 h 20	88	Good coverage
December	21°C	6.5°C	44 mm	3.8	9 h 53	73	Good coverage

Records at SAN GABRIEL FIRE DEPT, 1939–2015
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	34.4°C18 Jan 1971	-5.6°C4 Jan 1949	176 mm26 Jan 1956	461 mm1969 · driest 0 mm in 2003	71
February	34.4°C2 Feb 1995	-3.9°C6 Feb 1989	114 mm26 Feb 2004	440 mm1998 · driest 0 mm in 1984	72
March	38.3°C26 Mar 1988	-0.6°C1 Mar 1945	126 mm2 Mar 1983	339 mm1983 · driest 0 mm in 1959	70
April	41.1°C6 Apr 1989	1.1°C9 Apr 1953	41 mm20 Apr 1983	172 mm1965 · driest 0 mm in 2003	71
May	41.1°C20 May 1942	3.3°C13 May 1962	39 mm28 May 1990	131 mm1998 · driest 0 mm in 1968	74
June	43.9°C26 Jun 1990	6.1°C1 Jun 1971	28 mm16 Jun 1995	30 mm1995 · driest 0 mm in 1941	72
July	42.2°C1 Jul 1985	7.8°C7 Jul 1948	7 mm11 Jul 1992	17 mm1992 · driest 0 mm in 1994	74
August	44.4°C7 Aug 1983	8.3°C10 Aug 1999	112 mm30 Aug 2012	112 mm2012 · driest 0 mm in 1966	73
September	44.4°C4 Sep 1988	5.6°C28 Sep 1948	106 mm25 Sep 1939	114 mm1939 · driest 0 mm in 2006	73
October	42.2°C10 Oct 1991	0.6°C30 Oct 1971	68 mm20 Oct 2004	178 mm2004 · driest 0 mm in 1990	73
November	38.3°C2 Nov 1997	-1.1°C17 Nov 1958	113 mm29 Nov 1970	308 mm1965 · driest 0 mm in 2000	74
December	35.6°C3 Dec 1958	-4.4°C22 Dec 1990	102 mm29 Dec 1965	205 mm1943 · driest 0 mm in 1953	73

Typical days per month at SAN GABRIEL FIRE DEPT, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	8	1	<1	3
February	7	1	<1	3
March	10	3	0	2
April	13	5	0	<1
May	16	5	0	<1
June	24	9	0	<1
July	29	18	0	0
August	29	22	0	<1
September	26	19	0	<1
October	21	11	0	<1
November	12	4	<1	<1
December	6	<1	<1	2

How often, not how much — every day in SAN GABRIEL FIRE DEPT’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	53%	16%	8%	18%	18.0–23.3°C
February	58%	18%	9%	21%	18.8–24.2°C
March	65%	16%	8%	14%	19.8–24.8°C
April	78%	9%	4%	5%	21.8–26.6°C
May	91%	3%	<1%	1%	23.5–27.8°C
June	97%	1%	<1%	<1%	25.9–30.7°C
July	100%	<1%	0%	<1%	29.8–33.3°C
August	99%	<1%	<1%	0%	30.5–34.0°C
September	98%	2%	<1%	1%	28.5–33.5°C
October	94%	4%	2%	2%	25.4–29.9°C
November	80%	9%	4%	7%	21.7–26.5°C
December	54%	13%	6%	12%	18.5–23.7°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.

1940Each stripe is one year’s mean temperature against the 62-year average. Warmest: 2014. Coolest: 1948.2014

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5344147
NOAA station: USC00047785 · SAN GABRIEL FIRE DEPT
Station distance: 12.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 19 usable years
Daylight: Calculated from latitude 34.14°, 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 SAN GABRIEL FIRE DEPT is what differs

East Los Angeles→El Monte→West Covina→Alhambra→Baldwin Park→Pico Rivera→

Or put two places side by side: Duarte vs East Los Angeles

Best time to visitDuarte.

May

July

December

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Duarte.

The whole year,
without the guesswork.

Nearby, measured,
and named.