United States · 1991–2020

Best time to visit
Alpine.

September leads for comfortable weather in Alpine: typically 26°C by day, 9.4°C at night, with 34 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26°C

Typical low9.4°C

Rain in September34 mm

Comfort

September

September · June · August

82climate match

Beach

August

August · July · June

74climate match

Outdoors

May

May · September · October

79climate match

The weakest month is January, scoring 5 against September’s 82 — days reach only 4.1°C, 20° 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

54.1° / -5.5°

Feb

56.8° / -3.9°

Mar

2812.6° / -0.2°

Apr

4216.1° / 2.5°

May

7021.8° / 6.6°

Jun

7927.9° / 10.6°

Jul

7332° / 14.7°

Aug

7430.8° / 14.1°

Sep

8226° / 9.4°

Oct

5518.1° / 3.5°

Nov

2210.3° / -1.4°

Dec

53.8° / -5.5°

Monthly climate evidence for Alpine — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	4.1°C	-5.5°C	62 mm	8.7	9 h 35	5	Strong coverage
February	6.8°C	-3.9°C	50 mm	7.8	10 h 36	5	Strong coverage
March	12.6°C	-0.2°C	52 mm	7.7	11 h 49	28	Strong coverage
April	16.1°C	2.5°C	65 mm	8.5	13 h 13	42	Strong coverage
May	21.8°C	6.6°C	62 mm	7.4	14 h 24	70	Strong coverage
June	27.9°C	10.6°C	25 mm	3.6	15 h 03	79	Strong coverage
July	32°C	14.7°C	17 mm	2.9	14 h 47	73	Strong coverage
August	30.8°C	14.1°C	24 mm	4.6	13 h 46	74	Strong coverage
September	26°C	9.4°C	34 mm	4.5	12 h 25	82	Strong coverage
October	18.1°C	3.5°C	47 mm	5.9	11 h 03	55	Strong coverage
November	10.3°C	-1.4°C	40 mm	6	9 h 52	22	Strong coverage
December	3.8°C	-5.5°C	56 mm	8.3	9 h 18	5	Strong coverage

What has changed

Alpine runs +0.2°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

+0.7

Feb

+0.2

Mar

+1.2

Apr

-0.6

May

-0.2

Jun

+0.5

Jul

-0.3

Aug

-0.1

Sep

+0.4

Oct

-0.6

Nov

+1.0

Dec

+0.4

September daytime highs, 2011–2025. Last recorded: 27.1°C.

Records at ALPINE, 1965–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	16.1°C17 Jan 1983	-26.1°C31 Jan 1979	40 mm17 Jan 1996	185 mm2023 · driest 10 mm in 2022	49
February	21.1°C25 Feb 1986	-28.9°C6 Feb 1989	32 mm7 Feb 2024	129 mm1980 · driest 2 mm in 2015	51
March	30.0°C26 Mar 2026	-15.0°C5 Mar 1976	49 mm3 Mar 1978	148 mm1978 · driest 14 mm in 1976	49
April	30.6°C20 Apr 1989	-11.1°C7 Apr 1983	48 mm15 Apr 2009	141 mm2009 · driest 5 mm in 1977	49
May	33.9°C31 May 2002	-4.4°C9 May 1990	45 mm11 May 2005	160 mm1995 · driest 4 mm in 2001	50
June	37.8°C19 Jun 1989	-1.1°C30 Jun 1968	47 mm13 Jun 1998	108 mm1998 · driest 0 mm in 2025	50
July	40.0°C20 Jul 1989	3.9°C11 Jul 1983	31 mm17 Jul 2013	60 mm2013 · driest 0 mm in 2016	48
August	40.6°C4 Aug 1979	0.0°C31 Aug 1965	36 mm14 Aug 1978	74 mm1983 · driest 0 mm in 2020	50
September	36.7°C6 Sep 2022	-3.9°C29 Sep 1985	41 mm17 Sep 1978	168 mm1982 · driest 1 mm in 1979	48
October	31.7°C1 Oct 2010	-13.3°C30 Oct 2019	45 mm31 Oct 1974	150 mm2004 · driest 0 mm in 2017	47
November	23.9°C15 Nov 2016	-18.3°C26 Nov 1993	32 mm8 Nov 2020	92 mm1994 · driest 3 mm in 1976	49
December	18.9°C1 Dec 1995	-21.7°C27 Dec 1988	44 mm21 Dec 2014	213 mm1983 · driest 2 mm in 1976	51

Typical days per month at ALPINE, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	28	2	6
February	0	0	23	2	5
March	<1	0	17	2	4
April	1	0	9	2	3
May	9	1	2	2	<1
June	21	12	<1	<1	0
July	29	24	0	<1	0
August	29	21	0	<1	0
September	18	6	<1	1	0
October	3	<1	7	2	<1
November	0	0	19	1	3
December	0	0	27	2	7

How often, not how much — every day in ALPINE’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	0%	23%	4%	24%	0.1–6.6°C
February	<1%	24%	4%	25%	4.3–8.9°C
March	9%	23%	4%	24%	9.5–14.9°C
April	32%	23%	6%	24%	14.2–19.4°C
May	60%	20%	5%	19%	18.9–24.1°C
June	87%	12%	2%	9%	25.2–31.1°C
July	90%	9%	1%	5%	30.8–34.0°C
August	84%	14%	2%	9%	29.1–33.0°C
September	82%	14%	3%	11%	24.1–28.2°C
October	44%	16%	5%	13%	16.1–21.2°C
November	5%	18%	4%	16%	7.5–13.2°C
December	0%	22%	5%	24%	1.8–6.8°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.

1975Each stripe is one year’s mean temperature against the 42-year average. Warmest: 2025. Coolest: 1975.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5770732
NOAA station: USC00420061 · ALPINE
Station distance: 1.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 26 usable years
Daylight: Calculated from latitude 40.45°, 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 ALPINE is what differs

Highland→

Or put two places side by side: Alpine vs Highland

Best time to visitAlpine.

September

August

May

The whole year,without the guesswork.

Alpine runs +0.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Alpine.

The whole year,
without the guesswork.

Alpine runs +0.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.