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Hrastnik, Slovenia climate
Cfb Oceanic / temperate
Hrastnik has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 83°F, while the coldest is January averaging around 25°F at night. Around 44 inches of precipitation falls each year, peaking in September (5.4 inches) and easing off in March (2.1 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)Hrastnik climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 41 | 45 | 54 | 66 | 71 | 79 | 83 | 83 | 72 | 62 | 52 | 43 |
| Avg temp (°F) | 33 | 36 | 44 | 53 | 60 | 67 | 71 | 70 | 62 | 53 | 45 | 35 |
| Avg low (°F) | 25 | 27 | 33 | 41 | 48 | 55 | 58 | 57 | 51 | 43 | 37 | 27 |
| Precipitation (in) | 2.2 | 3.1 | 2.1 | 2.8 | 4.4 | 4.4 | 5.2 | 4.2 | 5.4 | 3.5 | 4.2 | 2.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 41 | 45 | 54 | 66 | 71 | 79 |
| Avg temp (°F) | 33 | 36 | 44 | 53 | 60 | 67 |
| Avg low (°F) | 25 | 27 | 33 | 41 | 48 | 55 |
| Precipitation (in) | 2.2 | 3.1 | 2.1 | 2.8 | 4.4 | 4.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 83 | 72 | 62 | 52 | 43 |
| Avg temp (°F) | 71 | 70 | 62 | 53 | 45 | 35 |
| Avg low (°F) | 58 | 57 | 51 | 43 | 37 | 27 |
| Precipitation (in) | 5.2 | 4.2 | 5.4 | 3.5 | 4.2 | 2.8 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 9 | 8 | 9 | 14 | 12 | 11 | 9 | 10 | 10 | 10 | 8 |
| Days with high ≥ 90°F (days) | — | — | — | — | — | 1 | 5 | 5 | 0.1 | — | — | — |
| Days with low ≤ 32°F (days) | 24 | 19 | 14 | 3 | 0.1 | — | — | — | 0.1 | 3 | 8 | 21 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 9 | 8 | 9 | 14 | 12 |
| Days with high ≥ 90°F (days) | — | — | — | — | — | 1 |
| Days with low ≤ 32°F (days) | 24 | 19 | 14 | 3 | 0.1 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 9 | 10 | 10 | 10 | 8 |
| Days with high ≥ 90°F (days) | 5 | 5 | 0.1 | — | — | — |
| Days with low ≤ 32°F (days) | — | — | 0.1 | 3 | 8 | 21 |
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 |
| 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 (%) | 65 | 65 | 65 | 67 | 66 | 64 |
| 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 (%) | 58 | 55 | 62 | 65 | 70 | 67 |
| 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 12 years of daily observations at Celje-medlog, a weather station, about 11 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.