United States · 1991–2020

Best time to visit
Lebanon.

May leads for comfortable weather in Lebanon: typically 22.9°C by day, 4.7°C at night, with 23 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high22.9°C

Typical low4.7°C

Rain in May23 mm

Comfort

May

May · September · June

77climate match

Beach

August

August · July · June

69climate match

Outdoors

October

October · May · April

83climate match

The weakest month is January, scoring 5 against May’s 77 — days reach only 6°C, 18° below the 24°C the score treats as ideal, and nights drop to -9°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

56° / -9°

Feb

88.4° / -6.2°

Mar

3113.3° / -2.8°

Apr

5217.6° / 0.1°

May

7722.9° / 4.7°

Jun

7129.7° / 9.3°

Jul

6732.5° / 13.6°

Aug

7130.9° / 12.9°

Sep

7626.7° / 8.3°

Oct

6019.7° / 1.6°

Nov

2712.2° / -3.8°

Dec

56.2° / -8.3°

Monthly climate evidence for Lebanon — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	6°C	-9°C	28 mm	5.1	9 h 50	5	Strong coverage
February	8.4°C	-6.2°C	26 mm	5.2	10 h 45	8	Strong coverage
March	13.3°C	-2.8°C	22 mm	4.4	11 h 51	31	Strong coverage
April	17.6°C	0.1°C	19 mm	3.5	13 h 06	52	Strong coverage
May	22.9°C	4.7°C	23 mm	4.1	14 h 10	77	Strong coverage
June	29.7°C	9.3°C	9 mm	1.9	14 h 44	71	Strong coverage
July	32.5°C	13.6°C	32 mm	5.7	14 h 30	67	Strong coverage
August	30.9°C	12.9°C	36 mm	5.5	13 h 36	71	Strong coverage
September	26.7°C	8.3°C	37 mm	5.4	12 h 23	76	Strong coverage
October	19.7°C	1.6°C	27 mm	4.4	11 h 10	60	Strong coverage
November	12.2°C	-3.8°C	21 mm	3.6	10 h 06	27	Strong coverage
December	6.2°C	-8.3°C	22 mm	4.7	9 h 35	5	Strong coverage

What has changed

Lebanon runs +2.0°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

+2.1

Feb

+1.7

Mar

+2.4

Apr

+1.9

May

+1.0

Jun

+2.7

Jul

+2.0

Aug

+2.1

Sep

+2.6

Oct

+1.4

Nov

+2.3

Dec

+2.1

May daytime highs, 2011–2025. Last recorded: 23.5°C.

Records at CORTEZ, 1911–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.2°C21 Jan 1994	-32.8°C22 Jan 1937	30 mm27 Jan 2013	89 mm1957 · driest 0 mm in 2002	97
February	26.1°C26 Feb 1986	-35.0°C8 Feb 1933	31 mm3 Feb 1916	98 mm1915 · driest 0 mm in 1972	100
March	30.0°C22 Mar 2026	-21.7°C6 Mar 1939	38 mm6 Mar 1995	117 mm1995 · driest 0 mm in 1997	98
April	31.1°C18 Apr 1932	-14.4°C4 Apr 1945	32 mm28 Apr 1952	86 mm1957 · driest 0 mm in 1914	97
May	35.0°C17 May 1932	-9.4°C25 May 1990	30 mm8 May 1957	97 mm1957 · driest 0 mm in 1974	97
June	38.9°C17 Jun 2021	-2.8°C7 Jun 1934	34 mm18 Jun 1949	59 mm2015 · driest 0 mm in 1914	97
July	38.9°C7 Jul 2017	-0.6°C5 Jul 1915	42 mm17 Jul 2018	103 mm1957 · driest 0 mm in 1993	97
August	37.8°C22 Aug 2025	-1.1°C24 Aug 1915	46 mm7 Aug 2006	97 mm1957 · driest 2 mm in 2020	96
September	37.2°C3 Sep 2022	-5.0°C26 Sep 1930	65 mm10 Sep 2003	120 mm1941 · driest 0 mm in 1968	97
October	32.2°C1 Oct 2024	-13.9°C31 Oct 2019	51 mm3 Oct 1913	167 mm1972 · driest 0 mm in 1952	97
November	23.9°C11 Nov 2005	-25.6°C24 Nov 1931	41 mm16 Nov 1964	71 mm1985 · driest 0 mm in 1932	98
December	19.4°C23 Dec 2025	-30.0°C8 Dec 1978	30 mm11 Dec 1954	92 mm1951 · driest 0 mm in 1930	98

Typical days per month at CORTEZ, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	30	<1	5
February	0	0	27	<1	5
March	0	0	24	<1	3
April	2	0	15	<1	2
May	13	2	4	<1	<1
June	26	17	<1	<1	0
July	30	26	0	<1	0
August	30	21	0	1	0
September	22	6	1	1	0
October	5	<1	11	<1	<1
November	0	0	24	<1	2
December	0	0	30	<1	5

The best month has moved. On the 1961–1990 numbers the strongest month here was September (scoring 81); 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 CORTEZ’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%	17%	2%	16%	2.3–8.2°C
February	<1%	18%	2%	18%	5.2–10.7°C
March	7%	17%	2%	16%	9.0–14.9°C
April	35%	13%	2%	10%	14.8–19.8°C
May	71%	12%	2%	9%	20.1–25.3°C
June	92%	7%	<1%	4%	26.6–31.5°C
July	82%	18%	3%	18%	30.2–33.5°C
August	81%	19%	4%	16%	28.9–32.0°C
September	81%	17%	4%	15%	24.1–28.4°C
October	51%	15%	4%	13%	17.4–22.1°C
November	4%	13%	2%	9%	8.6–14.5°C
December	0%	16%	2%	14%	3.0–8.9°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.

1914Each stripe is one year’s mean temperature against the 85-year average. Warmest: 2025. Coolest: 1991.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5428206
NOAA station: USC00051886 · CORTEZ
Station distance: 12.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 37.46°, 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 CORTEZ is what differs

Cortez→Dolores→Arriola→

Or put two places side by side: Lebanon vs Cortez

Best time to visitLebanon.

May

August

October

The whole year,without the guesswork.

Lebanon runs +2.0°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Lebanon.

The whole year,
without the guesswork.

Lebanon runs +2.0°C
on the 1961–1990 baseline.

Nearby, measured,
and named.