Weather & Climate in Trn, Bosnia and Herzegovina
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Trn experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 33°F in January while summers reach 69°F in July. Annual precipitation totals 38.5 inches. The area receives 5.6 inches of snow annually. The city sits at an elevation of 443 feet.
Temperature
33°F Jan (0°C)
69°F Jul (21°C)
| Annual Average | 51.8°F |
| 4% below US avg | |
| January Average | 33°F (0°C) |
| July Average | 69°F (21°C) |
Geography
| Elevation | 443 ft (135 m) |
| Area | 142.4 sq mi (368.8 km²) |
| Population Density | 40/sq mi |
| Coordinates | 44.8583°N, 17.2358°E |
| Timezone | Europe/Sarajevo |
Precipitation & Snow
Air Quality
Earthquake History
442 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.
| Nov 27, 1990 | 10 km N of Hrvace, Croatia | M5.6 | 122 km | 24 km |
| Nov 27, 1990 | 14 km N of Hrvace, Croatia | M5.1 | 117 km | 10 km |
| Nov 18, 2013 | 10 km ESE of Otok, Croatia | M4.9 | 136 km | 20 km |
| Aug 25, 1995 | 5 km NW of Požega, Croatia | M4.9 | 65 km | 24 km |
| Feb 20, 1996 | 11 km W of Kneževo, Bosnia and Herzegovina | M4.9 | 39 km | 10 km |
| Aug 30, 2019 | 6 km NNW of Mramor, Bosnia and Herzegovina | M4.8 | 105 km | 7 km |
| Apr 6, 2021 | 16 km NNW of Dvor, Croatia | M4.7 | 85 km | 10 km |
| Jan 6, 2021 | 3 km W of Petrinja, Croatia | M4.7 | 101 km | 10 km |
| Jun 3, 1990 | 8 km NNE of Maslovare, Bosnia and Herzegovina | M4.6 | 37 km | 10 km |
| Dec 13, 1995 | 9 km W of Živinice, Bosnia and Herzegovina | M4.6 | 36 km | 10 km |
| Feb 11, 2025 | 5 km NE of Starigrad, Croatia | M4.6 | 150 km | 10 km |
| Feb 26, 1998 | 6 km W of ?e?ava, Bosnia and Herzegovina | M4.6 | 40 km | 23 km |
| Aug 16, 2021 | 6 km NW of Petrinja, Croatia | M4.6 | 104 km | 10 km |
| Jun 17, 2011 | 14 km WNW of Hrvace, Croatia | M4.6 | 134 km | 10 km |
| May 19, 2023 | 5 km E of Srebrenik, Bosnia and Herzegovina | M4.5 | 106 km | 10 km |
| May 10, 2003 | 9 km NNW of Livno, Bosnia and Herzegovina | M4.5 | 107 km | 10 km |
| Jul 27, 2012 | 4 km SSW of Zenica, Bosnia and Herzegovina | M4.5 | 92 km | 10 km |
| May 19, 1992 | 7 km ESE of Otok, Croatia | M4.5 | 136 km | 10 km |
| May 20, 2013 | 10 km E of Livno, Bosnia and Herzegovina | M4.4 | 115 km | 10 km |
| Oct 8, 2012 | 19 km ENE of Glamo?, Bosnia and Herzegovina | M4.4 | 85 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 33°F (0°C) | 2.4 in | Coldest |
| February | 36°F (2°C) | 2.3 in | Driest |
| March | 44°F (7°C) | 2.8 in | |
| April | 52°F (11°C) | 3.4 in | |
| May | 60°F (16°C) | 3.4 in | |
| June | 66°F (19°C) | 4.1 in | Wettest |
| July | 69°F (21°C) | 3.7 in | Warmest |
| August | 69°F (20°C) | 3.4 in | |
| September | 62°F (17°C) | 3.2 in | |
| October | 53°F (12°C) | 3.3 in | |
| November | 43°F (6°C) | 3.5 in | |
| December | 35°F (2°C) | 3.2 in |
Trn has a seasonal temperature swing of 37°F / from 33°F in January to 69°F in July. Total annual precipitation is 38.6 inches, with June being the wettest month (4.1") and February the driest (2.3").