United States · 1991–2020

Best time to visit
Libby.

September leads for comfortable weather in Libby: typically 25.4°C by day, 4.8°C at night, with 28 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.4°C

Typical low4.8°C

Rain in September28 mm

Comfort

September

September · June · May

75climate match

Beach

July

July · August · June

58climate match

Outdoors

May

May · September · June

77climate match

The weakest month is January, scoring 5 against September’s 75 — days reach only 1.2°C, 23° 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

51.2° / -6°

Feb

55.2° / -5.2°

Mar

2011° / -2.8°

Apr

4416.3° / -0.2°

May

7022.3° / 3.6°

Jun

7326.1° / 7.4°

Jul

6431.5° / 9.5°

Aug

6331.5° / 8.4°

Sep

7525.4° / 4.8°

Oct

4014.6° / 1°

Nov

54.8° / -2.2°

Dec

50.3° / -5.5°

Monthly climate evidence for Libby — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	1.2°C	-6°C	45 mm	9.2	8 h 44	5	Good coverage
February	5.2°C	-5.2°C	28 mm	6.6	10 h 07	5	Good coverage
March	11°C	-2.8°C	41 mm	7.9	11 h 44	20	Strong coverage
April	16.3°C	-0.2°C	26 mm	6	13 h 36	44	Good coverage
May	22.3°C	3.6°C	38 mm	7.1	15 h 11	70	Good coverage
June	26.1°C	7.4°C	48 mm	7.8	16 h 05	73	Good coverage
July	31.5°C	9.5°C	25 mm	4.8	15 h 43	64	Good coverage
August	31.5°C	8.4°C	18 mm	3.3	14 h 20	63	Good coverage
September	25.4°C	4.8°C	28 mm	4.8	12 h 31	75	Good coverage
October	14.6°C	1°C	38 mm	6.5	10 h 43	40	Good coverage
November	4.8°C	-2.2°C	56 mm	9.4	9 h 08	5	Good coverage
December	0.3°C	-5.5°C	66 mm	10.9	8 h 20	5	Good coverage

Records at LIBBY 1 NE RS, 1895–2022
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	13.3°C30 Jan 1960	-43.3°C2 Jan 1924	52 mm9 Jan 1953	176 mm1953 · driest 3 mm in 2015	104
February	18.3°C25 Feb 1995	-38.3°C9 Feb 1933	28 mm15 Feb 1986	87 mm1961 · driest 0 mm in 1934	105
March	23.9°C23 Mar 1939	-28.9°C3 Mar 1960	37 mm15 Mar 2015	114 mm2012 · driest 3 mm in 1937	106
April	32.2°C25 Apr 1977	-20.6°C1 Apr 1936	32 mm28 Apr 1922	66 mm1982 · driest 1 mm in 2022	106
May	38.9°C30 May 1936	-11.1°C1 May 1954	79 mm27 May 1998	155 mm1998 · driest 0 mm in 1921	103
June	41.7°C29 Jun 2015	-4.4°C1 Jun 1951	55 mm21 Jun 1984	109 mm1969 · driest 4 mm in 1895	106
July	43.3°C15 Jul 2007	-1.1°C4 Jul 1999	51 mm24 Jul 1990	119 mm1987 · driest 0 mm in 1945	105
August	42.8°C15 Aug 1994	-3.3°C14 Aug 1895	39 mm7 Aug 1911	83 mm1989 · driest 0 mm in 2011	105
September	40.6°C7 Sep 1998	-10.6°C24 Sep 1926	45 mm15 Sep 1959	108 mm1959 · driest 0 mm in 1990	103
October	31.7°C4 Oct 1947	-21.7°C31 Oct 1935	33 mm3 Oct 1927	132 mm1951 · driest 0 mm in 1987	103
November	22.8°C16 Nov 1895	-28.3°C16 Nov 1955	54 mm18 Nov 1946	220 mm1896 · driest 3 mm in 1949	105
December	18.3°C12 Dec 1924	-39.4°C30 Dec 1968	64 mm5 Dec 2003	205 mm1933 · driest 4 mm in 1930	104

Typical days per month at LIBBY 1 NE RS, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	<1	7
February	0	0	26	<1	4
March	0	0	25	<1	2
April	2	0	17	<1	<1
May	10	3	8	<1	0
June	18	8	<1	2	0
July	28	21	0	<1	0
August	28	22	<1	<1	0
September	17	7	4	<1	0
October	2	0	13	1	<1
November	0	0	22	1	2
December	0	0	29	2	8

How often, not how much — every day in LIBBY 1 NE RS’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%	32%	4%	37%	-4.2–3.0°C
February	0%	25%	3%	26%	1.6–7.4°C
March	3%	25%	2%	27%	7.3–12.8°C
April	25%	20%	1%	19%	13.5–19.4°C
May	54%	22%	3%	24%	19.2–24.8°C
June	71%	23%	4%	23%	23.0–28.7°C
July	87%	13%	2%	8%	28.3–33.9°C
August	86%	14%	2%	13%	27.1–33.4°C
September	68%	18%	3%	20%	20.5–27.8°C
October	19%	24%	3%	28%	12.0–17.6°C
November	<1%	33%	5%	43%	2.6–7.2°C
December	0%	34%	5%	44%	-2.8–2.4°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.

1896Each stripe is one year’s mean temperature against the 92-year average. Warmest: 1934. Coolest: 1916.2012

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5662190
NOAA station: USC00245015 · LIBBY 1 NE RS
Station distance: 2.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 21 usable years
Daylight: Calculated from latitude 48.39°, 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 LIBBY 1 NE RS is what differs

Pioneer Junction→White Haven→Kens Trailer Court→Posts Trailer Court→Ripley→Rivers Edge Mobile Home Park→

Or put two places side by side: Libby vs Pioneer Junction

Best time to visitLibby.

September

July

May

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Libby.

The whole year,
without the guesswork.

Nearby, measured,
and named.