United States · 1991–2020

Best time to visit
Oakland.

May leads for comfortable weather in Oakland: typically 25.1°C by day, 14.8°C at night, with 118 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high25.1°C

Typical low14.8°C

Rain in May118 mm

Comfort

May

May · September · October

78climate match

Beach

August

August · June · July

80climate match

Outdoors

October

October · April · November

86climate match

The weakest month is January, scoring 5 against May’s 78 — days reach only 4.6°C, 19° 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

54.6° / -4.2°

Feb

107.7° / -2.1°

Mar

3313.5° / 3.3°

Apr

5619.5° / 8.8°

May

7825.1° / 14.8°

Jun

5629.9° / 19.8°

Jul

5031.9° / 21.9°

Aug

5531.2° / 21°

Sep

7727.2° / 16.2°

Oct

7120.9° / 10°

Nov

3513.6° / 4.1°

Dec

87.1° / -1.1°

Monthly climate evidence for Oakland — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.6°C	-4.2°C	65 mm	6.2	9 h 45	5	Good coverage
February	7.7°C	-2.1°C	53 mm	5.9	10 h 42	10	Strong coverage
March	13.5°C	3.3°C	86 mm	8.3	11 h 50	33	Strong coverage
April	19.5°C	8.8°C	120 mm	9.6	13 h 09	56	Strong coverage
May	25.1°C	14.8°C	118 mm	10	14 h 15	78	Strong coverage
June	29.9°C	19.8°C	120 mm	7.9	14 h 51	56	Strong coverage
July	31.9°C	21.9°C	98 mm	6.4	14 h 37	50	Good coverage
August	31.2°C	21°C	90 mm	6.5	13 h 40	55	Strong coverage
September	27.2°C	16.2°C	88 mm	5.8	12 h 23	77	Good coverage
October	20.9°C	10°C	79 mm	6.4	11 h 07	71	Good coverage
November	13.6°C	4.1°C	92 mm	6.9	10 h 01	35	Good coverage
December	7.1°C	-1.1°C	63 mm	6.5	9 h 29	8	Good coverage

Records at ST LOUIS SCI CTR, 1968–2018
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.3°C28 Jan 1970	-23.3°C16 Jan 1977	80 mm5 Jan 2005	230 mm2005 · driest 6 mm in 1978	37
February	26.7°C21 Feb 2017	-25.0°C3 Feb 1996	79 mm4 Feb 1990	189 mm1990 · driest 5 mm in 2017	39
March	31.1°C22 Mar 1997	-16.7°C5 Mar 1978	85 mm28 Mar 1977	232 mm1998 · driest 17 mm in 2014	38
April	33.9°C15 Apr 2006	-6.7°C4 Apr 1975	90 mm30 Apr 2017	282 mm1994 · driest 25 mm in 1991	38
May	35.0°C19 May 1996	2.2°C3 May 1976	89 mm17 May 1995	310 mm1995 · driest 8 mm in 1987	38
June	41.1°C30 Jun 2012	8.9°C5 Jun 1993	107 mm26 Jun 2003	258 mm1998 · driest 1 mm in 1992	38
July	41.7°C26 Jul 2012	11.7°C13 Jul 1975	75 mm30 Jul 2004	221 mm2004 · driest 11 mm in 2012	37
August	40.0°C4 Aug 2010	10.6°C15 Aug 1992	112 mm15 Aug 2016	238 mm2016 · driest 5 mm in 1969	39
September	40.0°C2 Sep 2011	1.7°C25 Sep 1969	114 mm14 Sep 2008	262 mm2008 · driest 2 mm in 2004	38
October	34.4°C4 Oct 2006	-2.2°C12 Oct 1987	66 mm30 Oct 2009	323 mm2009 · driest 4 mm in 1987	38
November	30.0°C1 Nov 2007	-13.9°C28 Nov 1976	117 mm18 Nov 2003	204 mm1992 · driest 8 mm in 1999	37
December	25.6°C3 Dec 1970	-27.2°C23 Dec 1989	102 mm27 Dec 2015	248 mm2015 · driest 15 mm in 1996	38

Typical days per month at ST LOUIS SCI CTR, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	22	2	3
February	<1	0	17	1	2
March	2	<1	9	3	<1
April	6	1	1	4	<1
May	16	5	0	3	0
June	26	16	0	4	0
July	28	21	0	3	0
August	28	19	0	3	0
September	20	9	0	3	0
October	8	2	<1	3	0
November	1	0	7	3	<1
December	0	0	17	2	1

How often, not how much — every day in ST LOUIS SCI CTR’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%	19%	6%	18%	1.0–7.8°C
February	5%	20%	5%	18%	3.4–10.0°C
March	15%	26%	9%	28%	9.1–16.5°C
April	36%	31%	12%	39%	16.4–22.4°C
May	60%	29%	11%	34%	22.7–28.1°C
June	74%	25%	12%	30%	28.4–32.1°C
July	79%	21%	11%	17%	30.2–33.5°C
August	79%	20%	9%	17%	29.5–33.5°C
September	73%	20%	9%	18%	25.0–29.5°C
October	46%	20%	8%	20%	18.1–23.6°C
November	15%	22%	9%	20%	9.6–16.7°C
December	1%	21%	6%	20%	4.3–10.0°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.

1969Each stripe is one year’s mean temperature against the 30-year average. Warmest: 2012. Coolest: 1996.2016

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4401560
NOAA station: USC00237452 · ST LOUIS SCI CTR
Station distance: 11.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 23 usable years
Daylight: Calculated from latitude 38.58°, 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 ST LOUIS SCI CTR is what differs

St. Louis→University City→Granite City→Kirkwood→Webster Groves→Affton→

Or put two places side by side: Oakland vs St. Louis

Best time to visitOakland.

May

August

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Oakland.

The whole year,
without the guesswork.

Nearby, measured,
and named.