United States · 1991–2020

Best time to visit
Stockton.

September leads for comfortable weather in Stockton: typically 27.3°C by day, 15.2°C at night, with 104 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high27.3°C

Typical low15.2°C

Rain in September104 mm

Comfort

September

September · May · October

77climate match

Beach

August

August · July · June

75climate match

Outdoors

October

October · April · November

78climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only 5.9°C, 18° below the 24°C the score treats as ideal, and nights drop to -5°C.

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

55.9° / -5°

Feb

118.6° / -3.2°

Mar

3213.9° / 1.7°

Apr

5319.5° / 7.1°

May

7324.2° / 13.1°

Jun

5729.1° / 18.6°

Jul

5031.8° / 20.9°

Aug

5431.7° / 20°

Sep

7727.3° / 15.2°

Oct

6521° / 8.7°

Nov

3513.9° / 2.7°

Dec

107.9° / -2.3°

Monthly climate evidence for Stockton — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5.9°C	-5°C	49 mm	5.2	9 h 49	5	Strong coverage
February	8.6°C	-3.2°C	56 mm	5.4	10 h 44	11	Strong coverage
March	13.9°C	1.7°C	77 mm	8.1	11 h 50	32	Strong coverage
April	19.5°C	7.1°C	122 mm	9	13 h 07	53	Strong coverage
May	24.2°C	13.1°C	149 mm	10.4	14 h 11	73	Strong coverage
June	29.1°C	18.6°C	132 mm	9.2	14 h 45	57	Strong coverage
July	31.8°C	20.9°C	108 mm	6.9	14 h 32	50	Strong coverage
August	31.7°C	20°C	94 mm	6.5	13 h 37	54	Strong coverage
September	27.3°C	15.2°C	104 mm	5.9	12 h 23	77	Strong coverage
October	21°C	8.7°C	105 mm	7.2	11 h 09	65	Strong coverage
November	13.9°C	2.7°C	84 mm	6.3	10 h 05	35	Strong coverage
December	7.9°C	-2.3°C	60 mm	5.1	9 h 34	10	Strong coverage

What has changed

Stockton 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

+2.4

Feb

+1.7

Mar

+1.5

Apr

0.0

May

+0.1

Jun

+0.8

Jul

0.0

Aug

-0.9

Sep

+1.0

Oct

+0.8

Nov

+1.4

Dec

+3.1

September daytime highs, 2011–2025. Last recorded: 30.1°C.

Records at STOCKTON DAM, 1970–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.3°C12 Jan 2017	-26.7°C21 Jan 1985	72 mm5 Jan 2005	114 mm2005 · driest 0 mm in 1986	55
February	27.8°C28 Feb 2024	-26.1°C1 Feb 1979	96 mm23 Feb 1985	163 mm1985 · driest 0 mm in 2006	56
March	33.3°C27 Mar 2026	-18.9°C4 Mar 2019	95 mm10 Mar 1974	225 mm1973 · driest 23 mm in 1995	56
April	35.6°C19 Apr 2006	-7.2°C3 Apr 1975	110 mm11 Apr 1994	292 mm2017 · driest 4 mm in 1989	56
May	33.9°C28 May 2018	-1.1°C3 May 1976	125 mm22 May 1989	398 mm2019 · driest 30 mm in 2005	55
June	40.0°C30 Jun 2023	5.6°C1 Jun 1982	119 mm9 Jun 2024	352 mm1981 · driest 25 mm in 1972	54
July	42.2°C19 Jul 1980	8.3°C20 Jul 1970	109 mm11 Jul 1992	393 mm1992 · driest 0 mm in 1970	57
August	42.8°C21 Aug 2023	8.3°C28 Aug 1986	119 mm6 Aug 1992	235 mm2017 · driest 1 mm in 1971	55
September	41.1°C1 Sep 2000	-1.7°C30 Sep 1984	98 mm25 Sep 1993	392 mm1993 · driest 17 mm in 2004	56
October	33.3°C9 Oct 1980	-7.2°C31 Oct 1993	152 mm5 Oct 1998	290 mm1998 · driest 9 mm in 1999	56
November	28.3°C14 Nov 1999	-15.0°C8 Nov 1991	108 mm21 Nov 1979	269 mm1992 · driest 2 mm in 1989	56
December	25.6°C3 Dec 2021	-27.8°C22 Dec 1989	89 mm27 Dec 2015	208 mm2015 · driest 1 mm in 2013	55

Typical days per month at STOCKTON DAM, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	22	1	1
February	<1	0	19	2	1
March	1	0	11	3	<1
April	5	<1	2	4	0
May	15	3	<1	5	<1
June	26	14	0	4	0
July	29	22	0	3	0
August	29	21	0	3	0
September	21	10	0	3	0
October	9	2	2	3	0
November	<1	0	9	3	<1
December	0	0	18	2	<1

How often, not how much — every day in STOCKTON DAM’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	<1%	17%	5%	15%	2.1–8.8°C
February	7%	19%	6%	16%	3.7–12.1°C
March	19%	26%	10%	29%	10.5–17.3°C
April	40%	29%	12%	36%	17.0–21.7°C
May	58%	33%	15%	42%	22.0–27.0°C
June	70%	30%	14%	35%	27.3–31.3°C
July	79%	21%	9%	19%	30.1–34.8°C
August	79%	21%	9%	23%	29.6–34.1°C
September	73%	22%	10%	23%	25.4–30.4°C
October	49%	24%	10%	25%	18.7–23.1°C
November	17%	20%	9%	16%	10.2–17.3°C
December	3%	17%	7%	11%	4.2–11.1°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.

1971Each stripe is one year’s mean temperature against the 49-year average. Warmest: 2024. Coolest: 1979.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4410287
NOAA station: USC00238082 · STOCKTON DAM
Station distance: 2.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 26 usable years
Daylight: Calculated from latitude 37.70°, 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 STOCKTON DAM is what differs

Humansville→Jerico Springs→Arcola→Umber View Heights→Arnica→Bearcreek→

Or put two places side by side: Stockton vs Humansville

Best time to visitStockton.