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Trebnje, Slovenia climate
Cfb Oceanic / temperate
Trebnje has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 81°F, while the coldest is January averaging around 28°F at night. Around 45 inches of precipitation falls each year, peaking in September (5.1 inches) and easing off in January (2.2 inches).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Trebnje climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 40 | 45 | 54 | 63 | 71 | 78 | 81 | 81 | 71 | 61 | 50 | 41 |
| Avg temp (°F) | 34 | 37 | 44 | 53 | 60 | 67 | 70 | 70 | 61 | 53 | 44 | 35 |
| Avg low (°F) | 28 | 29 | 35 | 42 | 50 | 57 | 59 | 59 | 52 | 45 | 38 | 29 |
| Precipitation (in) | 2.2 | 2.8 | 2.4 | 3.3 | 4.2 | 4.1 | 4.0 | 4.6 | 5.1 | 4.7 | 4.5 | 3.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 40 | 45 | 54 | 63 | 71 | 78 |
| Avg temp (°F) | 34 | 37 | 44 | 53 | 60 | 67 |
| Avg low (°F) | 28 | 29 | 35 | 42 | 50 | 57 |
| Precipitation (in) | 2.2 | 2.8 | 2.4 | 3.3 | 4.2 | 4.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 81 | 81 | 71 | 61 | 50 | 41 |
| Avg temp (°F) | 70 | 70 | 61 | 53 | 44 | 35 |
| Avg low (°F) | 59 | 59 | 52 | 45 | 38 | 29 |
| Precipitation (in) | 4.0 | 4.6 | 5.1 | 4.7 | 4.5 | 3.2 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 10 | 12 | 13 | 12 | 11 | 10 | 12 | 12 | 14 | 11 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.1 | 2 | 4 | 5 | 0.1 | — | — | — |
| Days with low ≤ 32°F (days) | 24 | 20 | 12 | 3 | 0.0 | — | — | — | — | 2 | 9 | 21 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 9 | 10 | 12 | 13 | 12 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.1 | 2 |
| Days with low ≤ 32°F (days) | 24 | 20 | 12 | 3 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 10 | 12 | 12 | 14 | 11 |
| Days with high ≥ 90°F (days) | 4 | 5 | 0.1 | — | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 2 | 9 | 21 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 68 | 66 | 67 | 64 | 59 | 49 | 48 | 59 | 67 | 74 | 71 |
| Relative humidity (%) | 92 | 88 | 83 | 79 | 77 | 75 | 70 | 68 | 76 | 85 | 91 | 92 |
| Wind speed (mph) | 1.7 | 2.0 | 1.9 | 1.5 | 1.4 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 68 | 66 | 67 | 64 | 59 |
| Relative humidity (%) | 92 | 88 | 83 | 79 | 77 | 75 |
| Wind speed (mph) | 1.7 | 2.0 | 1.9 | 1.5 | 1.4 | 1.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 49 | 48 | 59 | 67 | 74 | 71 |
| Relative humidity (%) | 70 | 68 | 76 | 85 | 91 | 92 |
| Wind speed (mph) | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 | 1.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Novo Mesto, a weather station, about 18 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.