United States · 1991–2020

Best time to visit
Mendenhall Springs.

May leads for comfortable weather in Mendenhall Springs: typically 25°C by day, 10.3°C at night, with 13 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high25°C

Typical low10.3°C

Rain in May13 mm

Comfort

May

May · October · June

88climate match

Beach

June

June · September · July

76climate match

Outdoors

April

April · November · May

89climate match

The weakest month is January, scoring 38 against May’s 88 — days reach only 14.1°C, 10° below the 24°C the score treats as ideal, and nights drop to 4.1°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

3814.1° / 4.1°

Feb

4816.4° / 5.3°

Mar

6219.1° / 6.6°

Apr

7821.7° / 7.9°

May

8825° / 10.3°

Jun

7929° / 12.4°

Jul

7231.9° / 14°

Aug

7331.6° / 13.9°

Sep

7630.2° / 12.9°

Oct

8725.3° / 10°

Nov

6418.6° / 6.5°

Dec

3914.1° / 4.1°

Monthly climate evidence for Mendenhall Springs — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	14.1°C	4.1°C	70 mm	7.9	9 h 50	38	Strong coverage
February	16.4°C	5.3°C	69 mm	8.4	10 h 44	48	Strong coverage
March	19.1°C	6.6°C	56 mm	7.4	11 h 50	62	Strong coverage
April	21.7°C	7.9°C	28 mm	4.3	13 h 07	78	Strong coverage
May	25°C	10.3°C	13 mm	2.3	14 h 10	88	Strong coverage
June	29°C	12.4°C	3 mm	0.7	14 h 45	79	Strong coverage
July	31.9°C	14°C	0 mm	0	14 h 31	72	Strong coverage
August	31.6°C	13.9°C	1 mm	0.2	13 h 36	73	Strong coverage
September	30.2°C	12.9°C	2 mm	0.6	12 h 23	76	Strong coverage
October	25.3°C	10°C	18 mm	2	11 h 09	87	Strong coverage
November	18.6°C	6.5°C	39 mm	5.1	10 h 06	64	Strong coverage
December	14.1°C	4.1°C	69 mm	7.5	9 h 35	39	Strong coverage

What has changed

Mendenhall Springs runs +0.9°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

+1.7

Feb

+0.9

Mar

+0.9

Apr

+1.6

May

+0.6

Jun

+1.5

Jul

+0.6

Aug

+0.5

Sep

+0.6

Oct

+0.6

Nov

+0.7

Dec

+1.2

May daytime highs, 2011–2025. Last recorded: 28.0°C.

Records at LIVERMORE, 1903–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	27.2°C29 Jan 2024	-7.8°C5 Jan 1961	99 mm2 Jan 2023	320 mm1911 · driest 0 mm in 2015	124
February	27.8°C28 Feb 2022	-6.1°C23 Feb 1942	74 mm1 Feb 1963	186 mm1998 · driest 0 mm in 2020	123
March	32.8°C20 Mar 2026	-5.6°C2 Mar 1971	51 mm21 Mar 1937	174 mm1907 · driest 0 mm in 1934	122
April	36.1°C7 Apr 2022	-1.7°C25 Apr 1942	46 mm3 Apr 1958	118 mm1967 · driest 1 mm in 1949	121
May	42.2°C30 May 1910	0.0°C7 May 1916	23 mm7 May 1905	68 mm1915 · driest 0 mm in 2001	124
June	45.0°C16 Jun 1961	2.8°C13 Jun 1984	15 mm16 Jun 1995	27 mm2011 · driest 0 mm in 1968	122
July	45.0°C7 Jul 1905	2.2°C8 Jul 1974	17 mm2 Jul 1980	18 mm1980 · driest 0 mm in 1964	121
August	44.4°C1 Aug 1946	4.4°C16 Aug 1972	13 mm19 Aug 1983	23 mm1976 · driest 0 mm in 2002	121
September	46.7°C5 Sep 2022	1.7°C30 Sep 1950	101 mm12 Sep 1918	145 mm1918 · driest 0 mm in 2006	121
October	43.3°C2 Oct 2024	-1.7°C30 Oct 1971	78 mm25 Oct 2021	102 mm2021 · driest 0 mm in 1978	121
November	33.9°C2 Nov 1918	-5.6°C5 Nov 1942	78 mm19 Nov 1950	151 mm1950 · driest 0 mm in 1929	119
December	26.1°C12 Dec 1958	-7.8°C9 Dec 1972	83 mm23 Dec 1955	258 mm1955 · driest 1 mm in 2011	121

Typical days per month at LIVERMORE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	5	2
February	<1	0	2	3
March	3	0	<1	2
April	8	2	0	<1
May	15	6	0	<1
June	23	13	0	<1
July	29	21	0	0
August	29	20	0	0
September	26	17	0	0
October	17	5	0	<1
November	2	0	<1	1
December	0	0	5	2

How often, not how much — every day in LIVERMORE’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	4%	26%	8%	32%	11.8–16.1°C
February	17%	27%	8%	34%	14.6–18.5°C
March	37%	23%	6%	27%	16.0–21.3°C
April	58%	14%	3%	11%	18.7–24.0°C
May	80%	7%	<1%	3%	22.0–27.4°C
June	95%	2%	<1%	<1%	26.2–31.2°C
July	100%	<1%	0%	0%	29.6–34.1°C
August	99%	<1%	<1%	<1%	29.1–33.5°C
September	97%	3%	<1%	1%	27.9–32.6°C
October	85%	7%	2%	5%	23.1–28.2°C
November	39%	16%	4%	19%	16.8–21.6°C
December	5%	24%	7%	29%	12.2–16.5°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.

1903Each stripe is one year’s mean temperature against the 104-year average. Warmest: 2014. Coolest: 1963.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5372148
NOAA station: USC00044997 · LIVERMORE
Station distance: 13.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 37.59°, 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 is what differs

Livermore→Greenville (historical)→Trevarno→Ulmar→Livermore-Pleasanton→

Or put two places side by side: Mendenhall Springs vs Livermore

Best time to visitMendenhall Springs.

May

June

April

The whole year,without the guesswork.

Mendenhall Springs runs +0.9°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Mendenhall Springs.

The whole year,
without the guesswork.

Mendenhall Springs runs +0.9°C
on the 1961–1990 baseline.

Nearby, measured,
and named.