United States · 1991–2020

Best time to visit
Pleasanton.

September leads for comfortable weather in Pleasanton: typically 26.2°C by day, 12.5°C at night, with 103 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.2°C

Typical low12.5°C

Rain in September103 mm

Comfort

September

September · May · October

75climate match

Beach

August

August · July · June

76climate match

Outdoors

October

October · April · May

81climate match

The weakest month is January, scoring 5 against September’s 75 — days reach only 4.7°C, 19° below the 24°C the score treats as ideal, and nights drop to -6.7°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

54.7° / -6.7°

Feb

108° / -4.6°

Mar

3013.3° / -0.1°

Apr

5018.8° / 5.7°

May

7423.7° / 11.6°

Jun

6228° / 16.8°

Jul

5531° / 19.6°

Aug

6031.3° / 18.9°

Sep

7526.2° / 12.5°

Oct

6420.5° / 6.8°

Nov

2712.4° / 0.4°

Dec

56.7° / -4.7°

Monthly climate evidence for Pleasanton — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.7°C	-6.7°C	43 mm	5.3	9 h 47	5	Good coverage
February	8°C	-4.6°C	47 mm	3.7	10 h 43	10	Good coverage
March	13.3°C	-0.1°C	66 mm	6.4	11 h 50	30	Good coverage
April	18.8°C	5.7°C	114 mm	8.5	13 h 08	50	Good coverage
May	23.7°C	11.6°C	127 mm	9.7	14 h 13	74	Good coverage
June	28°C	16.8°C	158 mm	7.4	14 h 48	62	Good coverage
July	31°C	19.6°C	106 mm	7.5	14 h 34	55	Good coverage
August	31.3°C	18.9°C	80 mm	6	13 h 38	60	Good coverage
September	26.2°C	12.5°C	103 mm	7.4	12 h 23	75	Good coverage
October	20.5°C	6.8°C	75 mm	7.1	11 h 08	64	Good coverage
November	12.4°C	0.4°C	76 mm	6.1	10 h 03	27	Good coverage
December	6.7°C	-4.7°C	45 mm	4.2	9 h 31	5	Good coverage

Records at MOUND CITY, 1949–2008
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C7 Jan 1965	-27.2°C11 Jan 1977	70 mm3 Jan 1971	100 mm1979 · driest 0 mm in 1966	59
February	27.2°C29 Feb 1972	-28.9°C1 Feb 1979	114 mm21 Feb 1997	146 mm1985 · driest 0 mm in 1968	59
March	31.1°C31 Mar 1966	-21.1°C3 Mar 2002	83 mm4 Mar 1985	185 mm1973 · driest 6 mm in 2002	59
April	33.9°C12 Apr 1972	-8.9°C7 Apr 2007	103 mm28 Apr 1994	336 mm1994 · driest 10 mm in 1989	58
May	36.7°C31 May 1953	-2.8°C3 May 1976	101 mm31 May 1970	297 mm1981 · driest 24 mm in 1965	58
June	41.7°C13 Jun 1953	5.6°C2 Jun 1956	114 mm29 Jun 2007	506 mm2007 · driest 1 mm in 1952	58
July	47.2°C14 Jul 1954	6.7°C5 Jul 1972	114 mm26 Jul 1957	291 mm1993 · driest 4 mm in 1975	57
August	43.3°C1 Aug 1980	5.0°C21 Aug 1950	90 mm14 Aug 1964	253 mm1974 · driest 4 mm in 2000	58
September	40.6°C2 Sep 1954	-2.2°C30 Sep 1984	145 mm22 Sep 1970	370 mm1973 · driest 7 mm in 1956	58
October	36.1°C7 Oct 1963	-8.3°C29 Oct 1952	104 mm3 Oct 1986	345 mm1986 · driest 0 mm in 1958	58
November	28.9°C4 Nov 1978	-16.1°C17 Nov 1959	89 mm20 Nov 1979	258 mm1992 · driest 0 mm in 1989	59
December	23.9°C7 Dec 1966	-32.8°C23 Dec 1989	51 mm14 Dec 1992	132 mm1984 · driest 2 mm in 1976	59

Typical days per month at MOUND CITY, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	27	1	2
February	0	0	22	1	1
March	1	<1	16	2	<1
April	6	<1	5	4	<1
May	14	2	<1	5	0
June	24	11	0	4	0
July	29	20	0	3	0
August	27	19	0	2	0
September	19	8	<1	3	0
October	8	1	4	3	0
November	<1	0	15	2	<1
December	0	0	24	1	1

How often, not how much — every day in MOUND CITY’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%	14%	3%	8%	1.9–8.8°C
February	6%	15%	5%	9%	4.2–11.5°C
March	20%	21%	8%	21%	10.6–17.1°C
April	44%	26%	11%	29%	17.8–23.0°C
May	63%	29%	14%	37%	22.8–27.0°C
June	73%	26%	14%	31%	26.9–31.8°C
July	78%	22%	10%	20%	30.3–34.6°C
August	80%	20%	10%	20%	29.2–34.8°C
September	74%	22%	11%	22%	24.8–30.8°C
October	53%	21%	10%	23%	19.1–24.2°C
November	17%	17%	7%	14%	9.7–16.6°C
December	2%	14%	5%	9%	4.1–10.0°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.

1950Each stripe is one year’s mean temperature against the 56-year average. Warmest: 1954. Coolest: 1989.2007

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4277481
NOAA station: USC00145528 · MOUND CITY
Station distance: 10.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 16 usable years
Daylight: Calculated from latitude 38.18°, 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 MOUND CITY is what differs

La Cygne→Linn Valley→Mound City→Hume→Blue Mound→Prescott→

Or put two places side by side: Pleasanton vs La Cygne

Best time to visitPleasanton.