Lebanon climate — normals and trends
Lebanon (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.7 °C and it receives 1,085 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (24.1 °C on average) and the coldest is January (-1.0 °C). Rainfall peaks in May.
Lebanon averages 92 frost days, 35 hot days (≥ 30 °C) and 120 rainy days per year.
Lebanon has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 104 to 80 per year over the period.
The hottest day of the period reached 39.2 °C (on 22 July 2011) and the coldest -25.6 °C (on 22 January 1984).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
LebanonPennsylvania
- coords
- 40.34°, -76.41°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.7°C
Average daily high
16.6°C
Average daily low
7.3°C
Annual rainfall
1,085mm
Sunshine / day
8.7h
Mean relative humidity
68%
Average peak wind
15.8km/h
Seasonal range
25.1°C
Frost days (< 0 °C)
92 d/yr
Hot days (≥ 30 °C)
35 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
67.2 cm
Average feels-like high
15.1 °C
Average feels-like low
4.9 °C
Average peak gust
36.9 km/h
Tropical nights (≥ 20 °C)
36 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.46 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
39.2 °C
22 July 2011
Coldest day
-25.6 °C
22 January 1984
Wettest day
154 mm
22 June 1972
Windiest day
49.2 km/h
15 October 1954
Strongest gust
132.5 km/h
25 November 1950
Hottest feels-like
44.1 °C
15 July 1995
Coldest feels-like
-31.3 °C
21 January 1985
Snowiest day
37.2 cm
13 March 1993
Sunniest day
14.3 h
2 July 2007
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 1.5 °C | -1.3 °C | 28 mm | -55 mm |
| Feb | 4.9 °C | +0.3 °C | 73 mm | -6 mm |
| Mar | 14.9 °C | +5.1 °C | 65 mm | -33 mm |
| Apr | 18.0 °C | +1.5 °C | 89 mm | -8 mm |
| May | 21.5 °C | -0.6 °C | 185 mm | +85 mm |
| Jun | 27.8 °C | +1.0 °C | 117 mm | +25 mm |
| Jul | 30.5 °C | +1.3 °C | 141 mm | +46 mm |
| Aug | 27.0 °C | -1.2 °C | 27 mm | -60 mm |
| Sep | 26.2 °C | +1.9 °C | 69 mm | -23 mm |
| Oct | 18.6 °C | +0.6 °C | 77 mm | -5 mm |
| Nov | 11.6 °C | +0.4 °C | 38 mm | -51 mm |
| Dec | 3.4 °C | -1.7 °C | 72 mm | -18 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Lebanon?
Lebanon has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 1,085 mm of precipitation per year.
What is the hottest day ever recorded in Lebanon?
The hottest day measured in Lebanon between 1940 and 2025 was 22 July 2011, reaching 39.2 °C.
What is the coldest day in Lebanon?
The coldest day measured in Lebanon between 1940 and 2025 was 22 January 1984, at -25.6 °C.
Does it snow in Lebanon?
Yes. Lebanon gets on average 67.2 cm of snow per year and has around 92 frost days.
Has the climate of Lebanon warmed?
Yes: Lebanon warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lebanon?
The wettest day measured in Lebanon between 1940 and 2025 was 22 June 1972, with 154 mm of rain in 24 hours.
What was the windiest day in Lebanon?
The windiest day measured in Lebanon between 1940 and 2025 was 15 October 1954, with winds reaching 49.2 km/h.
What is the warmest month in Lebanon?
The warmest month in Lebanon is July (24.1 °C on average); the coldest is January (-1.0 °C).
How much does it rain in Lebanon?
Lebanon receives on average 1,085 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Lebanon?
Lebanon gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Lebanon?
The heaviest 24-hour snowfall measured in Lebanon between 1940 and 2025 was 13 March 1993, with 37.2 cm.
Are there tropical nights in Lebanon?
Yes: Lebanon has on average 36 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lebanon?
In Lebanon, between 1940 and 2025, the highest apparent temperature reached 44.1 °C on 15 July 1995, and the lowest was -31.3 °C on 21 January 1985.
Compare Lebanon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lebanon