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Trzin, Slovenia climate
Cfb Oceanic / temperate
Trzin has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 82°F, while the coldest is January averaging around 29°F at night. Around 54 inches of precipitation falls each year, peaking in September (6.0 inches) and easing off in January (2.6 inches).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsTrzin climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 45 | 54 | 63 | 71 | 78 | 82 | 82 | 71 | 61 | 49 | 40 |
| Avg temp (°F) | 34 | 37 | 45 | 53 | 61 | 68 | 71 | 71 | 62 | 54 | 44 | 35 |
| Avg low (°F) | 29 | 30 | 36 | 43 | 51 | 58 | 61 | 61 | 53 | 46 | 39 | 30 |
| Precipitation (in) | 2.6 | 3.3 | 3.3 | 3.8 | 4.6 | 4.9 | 4.8 | 5.1 | 6.0 | 5.8 | 5.5 | 4.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 39 | 45 | 54 | 63 | 71 | 78 |
| Avg temp (°F) | 34 | 37 | 45 | 53 | 61 | 68 |
| Avg low (°F) | 29 | 30 | 36 | 43 | 51 | 58 |
| Precipitation (in) | 2.6 | 3.3 | 3.3 | 3.8 | 4.6 | 4.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 82 | 82 | 71 | 61 | 49 | 40 |
| Avg temp (°F) | 71 | 71 | 62 | 54 | 44 | 35 |
| Avg low (°F) | 61 | 61 | 53 | 46 | 39 | 30 |
| Precipitation (in) | 4.8 | 5.1 | 6.0 | 5.8 | 5.5 | 4.1 |
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 | 12 | 11 | 12 | 12 | 14 | 12 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.1 | 2 | 5 | 5 | 0.0 | — | — | — |
| Days with low ≤ 32°F (days) | 22 | 18 | 9 | 1 | — | — | — | — | — | 1 | 7 | 19 |
| 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) | 22 | 18 | 9 | 1 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 11 | 12 | 12 | 14 | 12 |
| Days with high ≥ 90°F (days) | 5 | 5 | 0.0 | — | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 1 | 7 | 19 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 65 | 65 | 67 | 66 | 64 | 58 | 55 | 62 | 65 | 70 | 67 |
| Clear days (≤ 30% cloud) | 4 | 5 | 4 | 5 | 4 | 5 | 6 | 8 | 6 | 5 | 3 | 4 |
| Partly cloudy days (30–70%) | 12 | 8 | 11 | 9 | 12 | 11 | 12 | 12 | 10 | 10 | 10 | 11 |
| Cloudy days (≥ 70%) | 15 | 15 | 16 | 16 | 16 | 14 | 13 | 11 | 14 | 16 | 17 | 16 |
| Relative humidity (%) | 91 | 87 | 82 | 78 | 77 | 75 | 72 | 70 | 77 | 85 | 90 | 91 |
| Wind speed (mph) | 0.8 | 1.0 | 0.9 | 0.5 | 0.3 | 0.3 | 0.4 | 0.4 | 0.3 | 0.3 | 0.3 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 65 | 65 | 65 | 67 | 66 | 64 |
| Clear days (≤ 30% cloud) | 4 | 5 | 4 | 5 | 4 | 5 |
| Partly cloudy days (30–70%) | 12 | 8 | 11 | 9 | 12 | 11 |
| Cloudy days (≥ 70%) | 15 | 15 | 16 | 16 | 16 | 14 |
| Relative humidity (%) | 91 | 87 | 82 | 78 | 77 | 75 |
| Wind speed (mph) | 0.8 | 1.0 | 0.9 | 0.5 | 0.3 | 0.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 58 | 55 | 62 | 65 | 70 | 67 |
| Clear days (≤ 30% cloud) | 6 | 8 | 6 | 5 | 3 | 4 |
| Partly cloudy days (30–70%) | 12 | 12 | 10 | 10 | 10 | 11 |
| Cloudy days (≥ 70%) | 13 | 11 | 14 | 16 | 17 | 16 |
| Relative humidity (%) | 72 | 70 | 77 | 85 | 90 | 91 |
| Wind speed (mph) | 0.4 | 0.4 | 0.3 | 0.3 | 0.3 | 0.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Ljubljana Bezigrad, a weather station, about 9 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.