United States · 1991–2020

Best time to visit
Corona.

April leads for comfortable weather in Corona: typically 24.2°C by day, 8.3°C at night, with 17 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortApril

Typical high24.2°C

Typical low8.3°C

Rain in April17 mm

Comfort

April

April · May · November

87climate match

Beach

June

June · October · July

76climate match

Outdoors

December

December · March · January

88climate match

The weakest month is August, scoring 61 against April’s 87 — days average 35°C, 11° above 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

6820.6° / 4.4°

Feb

6520.4° / 5°

Mar

7922.2° / 6.7°

Apr

8724.2° / 8.3°

May

8427° / 11.4°

Jun

7730.4° / 13.8°

Jul

6434.2° / 16.3°

Aug

6135° / 16.3°

Sep

6933.4° / 14.7°

Oct

7728.8° / 11.1°

Nov

8424.3° / 6.6°

Dec

6720.1° / 3.9°

Monthly climate evidence for Corona — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 40 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	20.6°C	4.4°C	44 mm	3.6	15.1°C	10 h 07	68	Good coverage
February	20.4°C	5°C	56 mm	4.9	15.0°C	10 h 55	65	Good coverage
March	22.2°C	6.7°C	25 mm	3.4	15.2°C	11 h 52	79	Good coverage
April	24.2°C	8.3°C	17 mm	2.2	15.7°C	12 h 59	87	Good coverage
May	27°C	11.4°C	5 mm	1.1	17.0°C	13 h 54	84	Good coverage
June	30.4°C	13.8°C	1 mm	0.1	18.5°C	14 h 24	77	Good coverage
July	34.2°C	16.3°C	2 mm	0.3	20.2°C	14 h 12	64	Good coverage
August	35°C	16.3°C	0 mm	0	20.7°C	13 h 25	61	Good coverage
September	33.4°C	14.7°C	2 mm	0.3	20.5°C	12 h 20	69	Good coverage
October	28.8°C	11.1°C	15 mm	1.3	19.3°C	11 h 17	77	Good coverage
November	24.3°C	6.6°C	15 mm	1.9	17.6°C	10 h 21	84	Good coverage
December	20.1°C	3.9°C	38 mm	3.5	15.8°C	9 h 55	67	Good coverage

Records at CHINO AP, 1998–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	33.9°C15 Jan 2021	-6.6°C14 Jan 2007	75 mm9 Jan 2005	192 mm2005 · driest 0 mm in 2022	28
February	35.0°C16 Feb 2016	-2.8°C1 Feb 2002	88 mm5 Feb 2024	279 mm2024 · driest 0 mm in 2020	28
March	37.8°C20 Mar 2026	-2.2°C3 Mar 2002	42 mm12 Mar 2020	197 mm2023 · driest 1 mm in 2008	28
April	41.1°C26 Apr 2004	-0.6°C2 Apr 1999	34 mm6 Apr 2020	75 mm2020 · driest 0 mm in 2008	29
May	40.0°C10 May 2025	3.9°C1 May 2003	17 mm4 May 2023	26 mm2019 · driest 0 mm in 2001	28
June	46.1°C20 Jun 2016	7.2°C5 Jun 1999	6 mm2 Jun 1999	7 mm1999 · driest 0 mm in 2002	29
July	48.9°C6 Jul 2018	10.0°C12 Jul 2001	16 mm19 Jul 2015	24 mm2015 · driest 0 mm in 2003	29
August	46.1°C31 Aug 2017	10.6°C8 Aug 1999	61 mm20 Aug 2023	69 mm2023 · driest 0 mm in 2014	28
September	49.4°C6 Sep 2020	8.3°C9 Sep 2000	19 mm15 Sep 2015	20 mm2015 · driest 0 mm in 2001	28
October	43.9°C1 Oct 2020	0.6°C29 Oct 2009	67 mm20 Oct 2004	191 mm2004 · driest 0 mm in 2024	28
November	37.8°C5 Nov 2020	-2.8°C30 Nov 2004	49 mm28 Nov 2019	110 mm2025 · driest 0 mm in 2021	28
December	33.3°C1 Dec 2021	-5.0°C24 Dec 1998	47 mm22 Dec 2010	128 mm2010 · driest 0 mm in 2024	28

Typical days per month at CHINO AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	7	<1	3	2
February	7	2	2	2
March	10	2	<1	<1
April	13	5	<1	<1
May	20	8	0	<1
June	27	17	0	0
July	31	28	0	0
August	31	29	0	0
September	28	23	0	0
October	23	13	0	<1
November	13	5	<1	<1
December	6	<1	5	1

How often, not how much — every day in CHINO 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	53%	12%	5%	11%	17.9–23.3°C
February	49%	17%	6%	20%	18.1–23.3°C
March	63%	13%	3%	10%	19.3–25.7°C
April	79%	7%	2%	2%	21.0–27.3°C
May	93%	3%	<1%	<1%	24.5–28.7°C
June	99%	<1%	0%	0%	27.6–33.4°C
July	99%	<1%	<1%	0%	32.3–36.3°C
August	100%	<1%	<1%	0%	33.5–36.8°C
September	99%	1%	<1%	0%	30.8–35.6°C
October	94%	4%	1%	1%	25.9–31.7°C
November	81%	7%	2%	3%	21.6–26.6°C
December	52%	11%	4%	9%	18.2–23.0°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: 2020. Coolest: 1999.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5339631
NOAA station: USW00003179 · CHINO AP
Station distance: 12.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 33.88°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 40 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 CHINO AP is what differs

Chino→Eastvale→Norco→Los Serranos→Boys Republic→Gypsum (historical)→

Or put two places side by side: Corona vs Chino

Best time to visitCorona.