United States · 1991–2020

Best time to visit
East Pleasanton.

May leads for comfortable weather in East Pleasanton: typically 24.2°C by day, 9.9°C at night, with 12 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high24.2°C

Typical low9.9°C

Rain in May12 mm

Comfort

May

May · October · June

90climate match

Beach

August

August · September · June

75climate match

Outdoors

April

April · May · November

91climate match

The weakest month is December, scoring 39 against May’s 90 — days reach only 14.6°C, 9° below the 24°C the score treats as ideal, and nights drop to 3.3°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

4014.4° / 3.4°

Feb

4616.3° / 4.3°

Mar

5918.6° / 5.7°

Apr

7420.8° / 7.3°

May

9024.2° / 9.9°

Jun

8028.5° / 12.4°

Jul

7531.2° / 14°

Aug

7531° / 14.1°

Sep

7729.9° / 13°

Oct

8625.4° / 9.9°

Nov

6418.7° / 5.7°

Dec

3914.6° / 3.3°

Monthly climate evidence for East Pleasanton — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	14.4°C	3.4°C	59 mm	7	9 h 49	40	Good coverage
February	16.3°C	4.3°C	67 mm	7.8	10 h 44	46	Good coverage
March	18.6°C	5.7°C	50 mm	7.9	11 h 50	59	Good coverage
April	20.8°C	7.3°C	29 mm	4.6	13 h 07	74	Good coverage
May	24.2°C	9.9°C	12 mm	2.2	14 h 11	90	Good coverage
June	28.5°C	12.4°C	3 mm	0.4	14 h 45	80	Good coverage
July	31.2°C	14°C	0 mm	0	14 h 32	75	Good coverage
August	31°C	14.1°C	0 mm	0.2	13 h 37	75	Good coverage
September	29.9°C	13°C	2 mm	0.5	12 h 23	77	Good coverage
October	25.4°C	9.9°C	19 mm	2.3	11 h 09	86	Good coverage
November	18.7°C	5.7°C	37 mm	5.1	10 h 05	64	Good coverage
December	14.6°C	3.3°C	69 mm	7.7	9 h 34	39	Good coverage

Records at LIVERMORE MUNI AP, 1998–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	24.4°C17 Jan 2021	-6.7°C14 Jan 2007	59 mm4 Jan 2008	206 mm2017 · driest 0 mm in 2015	28
February	26.7°C28 Feb 2020	-5.0°C8 Feb 2003	52 mm20 Feb 2017	176 mm2017 · driest 0 mm in 2020	28
March	32.8°C20 Mar 2026	-2.2°C8 Mar 2002	25 mm24 Mar 2011	120 mm2006 · driest 1 mm in 2026	28
April	34.4°C21 Apr 2009	-0.6°C3 Apr 2001	29 mm12 Apr 2003	93 mm2003 · driest 0 mm in 2008	29
May	40.0°C17 May 2009	2.2°C11 May 2010	18 mm2 May 2003	58 mm1998 · driest 0 mm in 2018	29
June	42.8°C28 Jun 2009	6.1°C1 Jun 2011	20 mm28 Jun 2011	38 mm2011 · driest 0 mm in 2019	29
July	45.0°C23 Jul 2006	8.9°C2 Jul 2004	0 mm21 Jul 2005	0 mm2005 · driest 0 mm in 2013	29
August	44.4°C4 Aug 1998	8.9°C7 Aug 2002	3 mm16 Aug 2020	3 mm2020 · driest 0 mm in 2016	28
September	45.0°C5 Sep 2022	5.6°C30 Sep 2007	12 mm21 Sep 2013	13 mm2022 · driest 0 mm in 2018	28
October	42.2°C2 Oct 2024	1.1°C31 Oct 2002	91 mm24 Oct 2021	133 mm2021 · driest 0 mm in 2002	28
November	29.4°C2 Nov 2018	-3.3°C30 Nov 2004	47 mm30 Nov 2012	92 mm2012 · driest 3 mm in 2019	28
December	22.8°C1 Dec 2013	-6.1°C24 Dec 1998	88 mm31 Dec 2022	206 mm2014 · driest 1 mm in 2011	28

Typical days per month at LIVERMORE MUNI AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	6	2
February	<1	0	3	2
March	3	0	1	1
April	7	2	<1	<1
May	12	6	0	<1
June	21	12	0	<1
July	28	19	0	0
August	28	19	0	0
September	25	15	0	0
October	17	6	0	<1
November	3	0	2	1
December	0	0	7	2

How often, not how much — every day in LIVERMORE MUNI 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	7%	22%	6%	25%	12.6–16.2°C
February	19%	26%	8%	37%	14.5–18.6°C
March	37%	25%	4%	27%	16.2–21.6°C
April	53%	15%	3%	14%	18.8–22.9°C
May	79%	7%	1%	4%	21.6–26.6°C
June	97%	1%	<1%	0%	26.2–30.5°C
July	100%	0%	0%	0%	29.1–33.3°C
August	99%	<1%	0%	0%	29.9–32.6°C
September	97%	2%	<1%	<1%	27.7–31.9°C
October	85%	7%	2%	8%	23.0–28.3°C
November	35%	16%	3%	14%	16.4–20.8°C
December	4%	26%	8%	34%	13.0–16.3°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: 2014. Coolest: 1999.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5345044
NOAA station: USW00023285 · LIVERMORE MUNI AP
Station distance: 2.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 37.67°, 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 LIVERMORE MUNI AP is what differs

Pleasanton→Dublin→Verona→Asco→Dougherty→Elliot (historical)→

Or put two places side by side: East Pleasanton vs Pleasanton

Best time to visitEast Pleasanton.

May

August

April

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
East Pleasanton.

The whole year,
without the guesswork.

Nearby, measured,
and named.