United States · 1991–2020

Best time to visit
Butte Falls.

June leads for comfortable weather in Butte Falls: typically 26.6°C by day, 7.6°C at night, with 29 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortJune

Typical high26.6°C

Typical low7.6°C

Rain in June29 mm

Comfort

June

June · May · September

77climate match

Beach

July

July · September · August

60climate match

Outdoors

May

May · June · October

76climate match

The weakest month is January, scoring 5 against June’s 77 — days reach only 9.3°C, 15° below the 24°C the score treats as ideal, and nights drop to -1.2°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

59.3° / -1.2°

Feb

1712.1° / -1°

Mar

2614.7° / 0.4°

Apr

4217.5° / 2.4°

May

7122.4° / 5.4°

Jun

7726.6° / 7.6°

Jul

6432.4° / 10.5°

Aug

6332.5° / 10.2°

Sep

6829.1° / 6.8°

Oct

6121.3° / 2.8°

Nov

1412.5° / 0.5°

Dec

58.3° / -1.2°

Monthly climate evidence for Butte Falls — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	9.3°C	-1.2°C	128 mm	14.7	9 h 23	5	Strong coverage
February	12.1°C	-1°C	87 mm	11.7	10 h 29	17	Strong coverage
March	14.7°C	0.4°C	89 mm	13.3	11 h 48	26	Strong coverage
April	17.5°C	2.4°C	75 mm	12	13 h 19	42	Strong coverage
May	22.4°C	5.4°C	52 mm	8.1	14 h 35	71	Strong coverage
June	26.6°C	7.6°C	29 mm	4.4	15 h 17	77	Strong coverage
July	32.4°C	10.5°C	11 mm	1.4	15 h 00	64	Strong coverage
August	32.5°C	10.2°C	8 mm	1.4	13 h 54	63	Strong coverage
September	29.1°C	6.8°C	20 mm	2.9	12 h 26	68	Strong coverage
October	21.3°C	2.8°C	61 mm	7.4	10 h 59	61	Strong coverage
November	12.5°C	0.5°C	123 mm	13.8	9 h 42	14	Strong coverage
December	8.3°C	-1.2°C	160 mm	15	9 h 04	5	Strong coverage

What has changed

Butte Falls runs +1.0°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

+1.2

Feb

0.0

Mar

+0.3

Apr

+0.7

May

+1.2

Jun

+1.1

Jul

+2.2

Aug

+1.9

Sep

+1.7

Oct

0.0

Nov

+1.4

Dec

+0.5

June daytime highs, 2011–2025. Last recorded: 29.3°C.

Records at LOST CREEK DAM, 1970–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	21.7°C31 Jan 2024	-13.9°C29 Jan 1980	74 mm11 Jan 1979	241 mm2006 · driest 14 mm in 1985	55
February	25.6°C28 Feb 1992	-16.7°C6 Feb 1989	65 mm18 Feb 1983	235 mm1986 · driest 14 mm in 2022	56
March	29.4°C19 Mar 2026	-9.4°C2 Mar 1971	69 mm30 Mar 1983	210 mm1983 · driest 18 mm in 1992	56
April	34.4°C21 Apr 2009	-7.2°C2 Apr 2008	53 mm8 Apr 2019	177 mm2019 · driest 4 mm in 2021	56
May	38.3°C29 May 1983	-4.4°C29 May 2006	33 mm5 May 2024	137 mm2005 · driest 4 mm in 1982	56
June	45.6°C29 Jun 2021	-1.7°C6 Jun 1976	29 mm23 Jun 2012	94 mm1995 · driest 0 mm in 2003	57
July	45.0°C30 Jul 2022	2.2°C1 Jul 1976	32 mm18 Jul 1987	80 mm1987 · driest 0 mm in 2018	57
August	44.4°C8 Aug 1981	1.7°C15 Aug 2009	40 mm7 Aug 1976	107 mm1976 · driest 0 mm in 1994	56
September	42.2°C3 Sep 1988	-3.3°C14 Sep 1970	56 mm25 Sep 2014	104 mm1986 · driest 0 mm in 2012	56
October	40.0°C3 Oct 1980	-9.4°C31 Oct 2002	58 mm14 Oct 2016	246 mm2016 · driest 0 mm in 1987	55
November	26.7°C2 Nov 2020	-11.7°C14 Nov 1978	98 mm6 Nov 1973	370 mm1973 · driest 20 mm in 1976	56
December	20.0°C13 Dec 2006	-23.3°C8 Dec 1972	82 mm13 Dec 2015	380 mm1996 · driest 16 mm in 1976	56

Typical days per month at LOST CREEK DAM, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	20	4	<1
February	<1	0	19	3	<1
March	1	0	16	3	<1
April	5	<1	9	2	0
May	11	4	2	2	0
June	19	9	<1	<1	0
July	29	23	0	<1	0
August	29	23	0	<1	0
September	23	15	<1	<1	0
October	10	3	7	2	0
November	<1	0	15	4	0
December	0	0	20	5	<1

The best month has moved. On the 1961–1990 numbers the strongest month here was June (scoring 78); on 2011–2025 it is May (79). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in LOST CREEK DAM’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%	43%	13%	57%	7.0–11.0°C
February	5%	42%	11%	57%	9.4–15.0°C
March	16%	44%	9%	57%	11.6–17.5°C
April	33%	36%	6%	47%	15.3–20.3°C
May	57%	24%	5%	26%	19.5–24.8°C
June	80%	13%	3%	11%	23.9–29.1°C
July	96%	4%	1%	2%	29.3–34.9°C
August	94%	6%	1%	4%	30.2–34.3°C
September	85%	12%	3%	13%	26.0–31.1°C
October	56%	23%	6%	30%	18.5–24.5°C
November	5%	46%	14%	66%	10.1–14.5°C
December	0%	48%	16%	63%	5.9–9.8°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.

1971Each stripe is one year’s mean temperature against the 53-year average. Warmest: 2014. Coolest: 1971.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5717066
NOAA station: USC00355055 · LOST CREEK DAM
Station distance: 16.9 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 42.54°, 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 LOST CREEK DAM is what differs

Shady Cove→Trail→Asbestos (historical)→Derby (historical)→Drew→Edsalla (historical)→

Or put two places side by side: Butte Falls vs Shady Cove

Best time to visitButte Falls.

June

July

May

The whole year,without the guesswork.

Butte Falls runs +1.0°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Butte Falls.

The whole year,
without the guesswork.

Butte Falls runs +1.0°C
on the 1961–1990 baseline.

Nearby, measured,
and named.