Dilijan climate — normals and trends
Dilijan (Armenia) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 5.1 °C and it receives 1,114 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 (15.7 °C on average) and the coldest is January (-6.8 °C). Rainfall peaks in May.
Dilijan averages 156 frost days, 0 hot days (≥ 30 °C) and 179 rainy days per year.
Dilijan has warmed by +2.0 °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 168 to 144 per year over the period.
The hottest day of the period reached 29.7 °C (on 16 August 2015) and the coldest -26.5 °C (on 19 January 1964).
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
DilijanTavush
- coords
- 40.74°, 44.86°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
5.1°C
Average daily high
9.4°C
Average daily low
1.3°C
Annual rainfall
1,114mm
Sunshine / day
10.1h
Mean relative humidity
78%
Average peak wind
8.0km/h
Seasonal range
22.5°C
Frost days (< 0 °C)
156 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
179 d/yr
Annual snowfall
208.7 cm
Average feels-like high
8.0 °C
Average feels-like low
-1.2 °C
Average peak gust
31.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
15.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.38 · 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
29.7 °C
16 August 2015
Coldest day
-26.5 °C
19 January 1964
Wettest day
65 mm
4 July 1963
Windiest day
24.4 km/h
6 February 2024
Strongest gust
97.9 km/h
15 March 2010
Hottest feels-like
33.1 °C
30 July 2011
Coldest feels-like
-31.9 °C
19 January 1964
Snowiest day
28.8 cm
12 October 1948
Sunniest day
14.0 h
18 May 1940
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 | 1.6 °C | +4.4 °C | 6 mm | -31 mm |
| Feb | -1.5 °C | 0.0 °C | 59 mm | +11 mm |
| Mar | 8.8 °C | +6.3 °C | 85 mm | -5 mm |
| Apr | 9.8 °C | +1.1 °C | 178 mm | +45 mm |
| May | 15.7 °C | +1.8 °C | 158 mm | -30 mm |
| Jun | 18.2 °C | +0.7 °C | 109 mm | -63 mm |
| Jul | 21.4 °C | +1.4 °C | 98 mm | -17 mm |
| Aug | 22.7 °C | +2.4 °C | 30 mm | -58 mm |
| Sep | 16.5 °C | -0.8 °C | 105 mm | +25 mm |
| Oct | 13.7 °C | +1.7 °C | 54 mm | -23 mm |
| Nov | 10.7 °C | +5.3 °C | 7 mm | -45 mm |
| Dec | 1.5 °C | +2.0 °C | 57 mm | +22 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 Dilijan?
Dilijan has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 5.1 °C and it receives 1,114 mm of precipitation per year.
What is the hottest day ever recorded in Dilijan?
The hottest day measured in Dilijan between 1940 and 2025 was 16 August 2015, reaching 29.7 °C.
What is the coldest day in Dilijan?
The coldest day measured in Dilijan between 1940 and 2025 was 19 January 1964, at -26.5 °C.
Does it snow in Dilijan?
Yes. Dilijan gets on average 208.7 cm of snow per year and has around 156 frost days.
Has the climate of Dilijan warmed?
Yes: Dilijan warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dilijan?
The wettest day measured in Dilijan between 1940 and 2025 was 4 July 1963, with 65 mm of rain in 24 hours.
What was the windiest day in Dilijan?
The windiest day measured in Dilijan between 1940 and 2025 was 6 February 2024, with winds reaching 24.4 km/h.
What is the warmest month in Dilijan?
The warmest month in Dilijan is July (15.7 °C on average); the coldest is January (-6.8 °C).
How much does it rain in Dilijan?
Dilijan receives on average 1,114 mm of precipitation per year, spread over about 179 rainy days.
Is it sunny in Dilijan?
Dilijan gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dilijan?
The heaviest 24-hour snowfall measured in Dilijan between 1940 and 2025 was 12 October 1948, with 28.8 cm.
Are there tropical nights in Dilijan?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Dilijan.
What was the most extreme apparent temperature in Dilijan?
In Dilijan, between 1940 and 2025, the highest apparent temperature reached 33.1 °C on 30 July 2011, and the lowest was -31.9 °C on 19 January 1964.
Compare Dilijan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dilijan