United States · 1991–2020

Best time to visit
North Tustin.

May leads for comfortable weather in North Tustin: typically 24.3°C by day, 14.2°C at night, with 7 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high24.3°C

Typical low14.2°C

Rain in May7 mm

Comfort

May

May · April · November

98climate match

Beach

July

July · August · September

90climate match

Outdoors

December

December · March · April

89climate match

The weakest month is February, scoring 72 against May’s 98 — nights drop to 9.4°C, and days reach only 21.3°C, 3° 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

7321.3° / 9°

Feb

7221.3° / 9.4°

Mar

8622.5° / 10.8°

Apr

9323.5° / 12°

May

9824.3° / 14.2°

Jun

9226° / 15.9°

Jul

8028.6° / 17.9°

Aug

7529.8° / 18.3°

Sep

7829.4° / 17.4°

Oct

9027° / 15°

Nov

9323.9° / 11.2°

Dec

7320.8° / 8.6°

Monthly climate evidence for North Tustin — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 17 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	21.3°C	9°C	73 mm	5.3	15.1°C	10 h 08	73	Strong coverage
February	21.3°C	9.4°C	81 mm	5.6	15.0°C	10 h 55	72	Strong coverage
March	22.5°C	10.8°C	43 mm	3.9	15.2°C	11 h 52	86	Strong coverage
April	23.5°C	12°C	21 mm	2.3	15.7°C	12 h 59	93	Strong coverage
May	24.3°C	14.2°C	7 mm	1	17.0°C	13 h 53	98	Strong coverage
June	26°C	15.9°C	2 mm	0.3	18.5°C	14 h 23	92	Strong coverage
July	28.6°C	17.9°C	1 mm	0.3	20.2°C	14 h 11	80	Strong coverage
August	29.8°C	18.3°C	0 mm	0	20.7°C	13 h 24	75	Strong coverage
September	29.4°C	17.4°C	3 mm	0.4	20.5°C	12 h 20	78	Strong coverage
October	27°C	15°C	14 mm	1.5	19.3°C	11 h 17	90	Strong coverage
November	23.9°C	11.2°C	20 mm	2.4	17.6°C	10 h 22	93	Strong coverage
December	20.8°C	8.6°C	58 mm	4.7	15.8°C	9 h 55	73	Strong coverage

What has changed

North Tustin runs +1.0°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+0.8

Feb

+0.4

Mar

+0.9

Apr

+1.2

May

+0.5

Jun

+0.9

Jul

+1.0

Aug

+1.4

Sep

+1.5

Oct

+1.2

Nov

+1.3

Dec

+0.4

May daytime highs, 2011–2025. Last recorded: 25.2°C.

Records at SANTA ANA FIRE STN, 1916–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	35.6°C31 Jan 2003	-8.9°C12 Jan 1989	107 mm26 Jan 1956	343 mm1995 · driest 0 mm in 1945	110
February	35.0°C9 Feb 2016	-5.6°C14 Feb 1989	119 mm16 Feb 1927	355 mm1998 · driest 0 mm in 1984	110
March	37.8°C17 Mar 2026	-2.2°C5 Mar 1948	87 mm7 Mar 1952	255 mm1941 · driest 0 mm in 1956	108
April	40.0°C5 Apr 1989	-0.6°C11 Apr 1953	89 mm6 Apr 1926	154 mm1926 · driest 0 mm in 1997	109
May	40.6°C3 May 2004	1.7°C4 May 1950	30 mm22 May 1921	89 mm1921 · driest 0 mm in 1985	111
June	44.4°C14 Jun 1917	3.9°C8 Jun 1950	32 mm5 Jun 1993	33 mm1993 · driest 0 mm in 1966	110
July	45.6°C6 Jul 2018	5.6°C7 Jul 1948	6 mm8 Jul 1945	11 mm2015 · driest 0 mm in 1984	109
August	41.1°C18 Aug 2020	7.2°C21 Aug 1959	46 mm17 Aug 1977	53 mm1977 · driest 0 mm in 1929	110
September	45.0°C6 Sep 2024	4.4°C26 Sep 1948	71 mm25 Sep 1939	99 mm1939 · driest 0 mm in 1954	110
October	41.1°C16 Oct 1958	1.1°C12 Oct 1924	80 mm20 Oct 2004	123 mm2004 · driest 0 mm in 1961	108
November	38.3°C1 Nov 1966	-4.4°C28 Nov 1919	74 mm1 Nov 1927	175 mm1965 · driest 0 mm in 1975	110
December	35.0°C3 Dec 1958	-5.6°C31 Dec 1918	95 mm22 Dec 1945	275 mm2010 · driest 0 mm in 1976	110

Typical days per month at SANTA ANA FIRE STN, 1991–2020
Month	Days 25°C+	Days 30°C+	Heavy rain (10 mm+)
January	7	<1	3
February	6	1	3
March	7	2	2
April	10	3	<1
May	11	2	<1
June	19	3	<1
July	29	10	0
August	30	14	0
September	27	12	<1
October	20	7	<1
November	11	3	<1
December	5	<1	2

How often, not how much — every day in SANTA ANA FIRE STN’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	49%	19%	8%	18%	18.0–23.3°C
February	51%	20%	9%	23%	18.4–23.1°C
March	63%	16%	6%	13%	19.3–23.9°C
April	77%	9%	3%	5%	21.1–25.0°C
May	90%	4%	<1%	<1%	21.8–26.2°C
June	98%	1%	<1%	0%	24.0–28.0°C
July	99%	<1%	0%	<1%	27.1–30.2°C
August	99%	<1%	<1%	0%	27.5–31.1°C
September	98%	3%	<1%	1%	27.0–31.4°C
October	94%	5%	1%	2%	24.5–28.7°C
November	79%	10%	4%	7%	21.2–25.9°C
December	53%	16%	7%	15%	18.2–22.9°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.

1917Each stripe is one year’s mean temperature against the 101-year average. Warmest: 2014. Coolest: 1948.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5404122
NOAA station: USC00047888 · SANTA ANA FIRE STN
Station distance: 7.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 33.76°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 17 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 SANTA ANA FIRE STN is what differs

Santa Ana→Garden Grove→Orange→Tustin→Midway City→Aliso→

Or put two places side by side: North Tustin vs Santa Ana

Best time to visitNorth Tustin.

May

July

December

The whole year,without the guesswork.

North Tustin runs +1.0°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
North Tustin.

The whole year,
without the guesswork.

North Tustin runs +1.0°C
on the 1961–1990 baseline.

Nearby, measured,
and named.