United States · 1991–2020

Best time to visit
Altamont.

June leads for comfortable weather in Altamont: typically 24.2°C by day, 5.6°C at night, with 14 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high24.2°C

Typical low5.6°C

Rain in June14 mm

Comfort

June

June · September · August

82climate match

Beach

July

July · August · June

65climate match

Outdoors

May

May · June · September

81climate match

The weakest month is January, scoring 5 against June’s 82 — days reach only 5°C, 19° 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

55° / -5.5°

Feb

77.2° / -4.5°

Mar

2110.7° / -3°

Apr

3513.9° / -1.3°

May

5919° / 2.5°

Jun

8224.2° / 5.6°

Jul

7029.9° / 9.3°

Aug

7129° / 8.3°

Sep

7824.8° / 4.2°

Oct

4917.3° / -0.5°

Nov

149.2° / -3.4°

Dec

54.2° / -6.1°

Monthly climate evidence for Altamont — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	5°C	-5.5°C	34 mm	7.1	9 h 25	5	Good coverage
February	7.2°C	-4.5°C	29 mm	6	10 h 30	7	Good coverage
March	10.7°C	-3°C	27 mm	6.3	11 h 48	21	Good coverage
April	13.9°C	-1.3°C	25 mm	5.7	13 h 18	35	Good coverage
May	19°C	2.5°C	27 mm	5.6	14 h 33	59	Good coverage
June	24.2°C	5.6°C	14 mm	3.1	15 h 15	82	Good coverage
July	29.9°C	9.3°C	5 mm	0.7	14 h 58	70	Good coverage
August	29°C	8.3°C	10 mm	1.5	13 h 53	71	Good coverage
September	24.8°C	4.2°C	8 mm	1.5	12 h 26	78	Good coverage
October	17.3°C	-0.5°C	20 mm	3.9	10 h 59	49	Good coverage
November	9.2°C	-3.4°C	36 mm	6.7	9 h 44	14	Good coverage
December	4.2°C	-6.1°C	42 mm	7.7	9 h 07	5	Good coverage

Records at KLAMATH FALLS INTL AP, 1959–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.4°C29 Jan 2024	-31.7°C23 Jan 1962	30 mm23 Jan 1970	105 mm1970 · driest 6 mm in 2001	40
February	18.9°C13 Feb 2022	-25.5°C12 Feb 2025	32 mm10 Feb 1962	86 mm2025 · driest 1 mm in 2022	40
March	25.0°C19 Mar 2026	-16.6°C2 Mar 2012	24 mm10 Mar 1967	63 mm1960 · driest 1 mm in 1965	40
April	28.9°C28 Apr 2023	-11.0°C5 Apr 2010	23 mm30 Apr 2002	52 mm2002 · driest 1 mm in 1968	40
May	32.8°C17 May 2008	-8.2°C1 May 2008	29 mm28 May 2026	92 mm1998 · driest 3 mm in 2021	40
June	39.4°C28 Jun 2021	-5.0°C4 Jun 2001	29 mm6 Jun 1964	52 mm1964 · driest 0 mm in 1960	40
July	39.4°C29 Jul 2022	-1.1°C3 Jul 1966	25 mm24 Jul 2017	43 mm2025 · driest 0 mm in 1962	40
August	37.8°C4 Aug 1998	-1.1°C27 Aug 1960	40 mm10 Aug 1999	94 mm1999 · driest 0 mm in 2000	38
September	37.8°C3 Sep 1998	-6.1°C21 Sep 1968	38 mm28 Sep 1962	48 mm2019 · driest 0 mm in 1999	39
October	31.1°C1 Oct 2010	-13.3°C31 Oct 2002	39 mm27 Oct 1961	119 mm1962 · driest 0 mm in 2013	39
November	22.2°C2 Nov 2020	-19.9°C24 Nov 2010	36 mm6 Nov 2005	119 mm2005 · driest 0 mm in 1959	41
December	15.0°C10 Dec 2025	-28.8°C8 Dec 2013	66 mm22 Dec 1964	169 mm1964 · driest 7 mm in 2013	41

Typical days per month at KLAMATH FALLS INTL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	28	<1
February	0	0	25	<1
March	0	0	25	<1
April	<1	0	21	<1
May	6	<1	9	<1
June	16	5	2	<1
July	28	17	0	<1
August	28	15	<1	<1
September	18	6	3	<1
October	2	<1	19	<1
November	0	0	24	<1
December	0	0	28	1

How often, not how much — every day in KLAMATH FALLS INTL 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	0%	23%	3%	26%	1.3–8.1°C
February	0%	19%	3%	20%	2.9–10.2°C
March	6%	20%	1%	19%	7.4–13.4°C
April	16%	17%	1%	16%	10.5–16.5°C
May	44%	15%	2%	15%	15.4–21.6°C
June	73%	11%	1%	7%	21.7–26.3°C
July	97%	3%	<1%	<1%	27.2–32.1°C
August	92%	6%	<1%	2%	26.2–30.9°C
September	78%	6%	<1%	3%	22.0–27.1°C
October	36%	13%	2%	12%	15.2–20.3°C
November	1%	24%	3%	31%	6.9–11.6°C
December	0%	26%	4%	32%	1.6–6.8°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.

1960Each stripe is one year’s mean temperature against the 38-year average. Warmest: 2014. Coolest: 1964.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5711149
NOAA station: USW00094236 · KLAMATH FALLS INTL AP
Station distance: 6.7 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 42.21°, 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 KLAMATH FALLS INTL AP is what differs

Klamath Falls→Olene→Chase (historical)→Dairy→Fairhaven→Falcon Heights→

Or put two places side by side: Altamont vs Klamath Falls

Best time to visitAltamont.

June

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Altamont.

The whole year,
without the guesswork.

Nearby, measured,
and named.