United States · 1991–2020

Best time to visit
Alyeska.

July leads for comfortable weather in Alyeska: typically 19.1°C by day, 9.8°C at night, with 67 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJuly

Typical high19.1°C

Typical low9.8°C

Rain in July67 mm

Comfort

July

July · June · August

63climate match

Beach

July

July · June · August

25climate match

Outdoors

July

July · June · August

82climate match

The weakest month is January, scoring 5 against July’s 63 — days reach only -2.8°C, 27° 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

5-2.8° / -8.4°

Feb

5-0.5° / -7°

Mar

51.9° / -6.9°

Apr

57.4° / -1.8°

May

2613° / 2.8°

Jun

5717.5° / 7°

Jul

6319.1° / 9.8°

Aug

4717.9° / 8.7°

Sep

913.3° / 4.9°

Oct

56.8° / -0.3°

Nov

50.2° / -5.6°

Dec

5-1.5° / -7.1°

Monthly climate evidence for Alyeska — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	-2.8°C	-8.4°C	186 mm	15.2	6 h 23	5	Strong coverage
February	-0.5°C	-7°C	167 mm	14.6	8 h 53	5	Strong coverage
March	1.9°C	-6.9°C	137 mm	13.6	11 h 32	5	Strong coverage
April	7.4°C	-1.8°C	133 mm	12.7	14 h 32	5	Strong coverage
May	13°C	2.8°C	99 mm	10.2	17 h 20	26	Strong coverage
June	17.5°C	7°C	56 mm	8.2	19 h 11	57	Strong coverage
July	19.1°C	9.8°C	67 mm	10.7	18 h 24	63	Strong coverage
August	17.9°C	8.7°C	124 mm	13.4	15 h 47	47	Strong coverage
September	13.3°C	4.9°C	219 mm	16.4	12 h 47	9	Strong coverage
October	6.8°C	-0.3°C	197 mm	15.4	9 h 54	5	Strong coverage
November	0.2°C	-5.6°C	193 mm	14.8	7 h 10	5	Strong coverage
December	-1.5°C	-7.1°C	230 mm	18.5	5 h 36	5	Strong coverage

What has changed

Alyeska runs +1.5°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

+2.2

Feb

+1.7

Mar

+0.6

Apr

+2.0

May

—

Jun

+2.2

Jul

+1.3

Aug

+1.3

Sep

+1.0

Oct

+2.3

Nov

+0.7

Dec

+1.1

July daytime highs, 2011–2025. Last recorded: 19.5°C.

Records at ALYESKA, 1963–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.9°C26 Jan 2014	-34.4°C29 Jan 1989	154 mm3 Jan 1973	720 mm1981 · driest 19 mm in 1982	59
February	11.7°C7 Feb 1970	-31.1°C5 Feb 1999	134 mm5 Feb 2003	459 mm2016 · driest 5 mm in 1979	56
March	13.9°C12 Mar 1970	-27.8°C7 Mar 1971	125 mm17 Mar 1995	392 mm2019 · driest 22 mm in 1983	56
April	19.4°C30 Apr 2005	-18.9°C2 Apr 1985	83 mm27 Apr 1976	354 mm1988 · driest 20 mm in 1981	55
May	25.6°C28 May 2006	-5.0°C15 May 1971	83 mm11 May 2018	310 mm1971 · driest 19 mm in 1986	48
June	29.4°C17 Jun 2015	-0.6°C7 Jun 1978	64 mm17 Jun 2014	182 mm1987 · driest 2 mm in 2022	54
July	31.7°C9 Jul 2019	0.0°C26 Jul 1967	52 mm11 Jul 2014	176 mm2022 · driest 19 mm in 1988	54
August	31.1°C17 Aug 2004	-1.1°C30 Aug 2009	77 mm29 Aug 2001	298 mm2022 · driest 5 mm in 2019	56
September	22.8°C3 Sep 2016	-8.3°C23 Sep 1992	127 mm17 Sep 1967	536 mm1967 · driest 26 mm in 1981	51
October	17.2°C1 Oct 2018	-16.7°C31 Oct 1985	242 mm31 Oct 2021	498 mm2021 · driest 42 mm in 2016	52
November	10.6°C1 Nov 1969	-26.1°C30 Nov 1968	136 mm21 Nov 2007	580 mm2007 · driest 0 mm in 1973	54
December	10.0°C20 Dec 1969	-27.8°C18 Dec 1980	135 mm26 Dec 2001	529 mm1969 · driest 0 mm in 1973	56

Typical days per month at ALYESKA, 1991–2020
Month	Days 25°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	27	6	11
February	0	25	5	11
March	0	28	5	10
April	0	21	4	4
May	<1	5	3	<1
June	1	0	2	0
July	2	0	2	0
August	1	<1	5	0
September	0	3	7	<1
October	0	16	6	3
November	0	24	6	9
December	0	27	7	14

How often, not how much — every day in ALYESKA’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%	47%	19%	65%	-9.3–1.6°C
February	0%	47%	15%	62%	-4.8–2.7°C
March	0%	39%	13%	55%	-1.4–5.0°C
April	0%	39%	13%	52%	4.3–8.5°C
May	5%	33%	11%	40%	10.2–15.0°C
June	24%	27%	6%	32%	14.7–19.4°C
July	34%	34%	7%	47%	16.4–20.6°C
August	25%	44%	14%	62%	15.9–19.0°C
September	2%	54%	22%	73%	11.1–14.3°C
October	0%	49%	19%	67%	4.0–8.7°C
November	0%	46%	19%	66%	-4.5–3.3°C
December	0%	53%	21%	72%	-5.3–2.3°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.

1970Each stripe is one year’s mean temperature against the 40-year average. Warmest: 2016. Coolest: 1972.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5879267
NOAA station: USC00500243 · ALYESKA
Station distance: 0.3 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 60.96°, 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 ALYESKA is what differs

Girdwood→

Or put two places side by side: Alyeska vs Girdwood

Best time to visitAlyeska.

July

July

July

The whole year,without the guesswork.

Alyeska runs +1.5°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Alyeska.

The whole year,
without the guesswork.

Alyeska runs +1.5°C
on the 1961–1990 baseline.

Nearby, measured,
and named.