Climate Trends in Slovenia
Long-record stations in Slovenia warmed +0.45 C per decade from 1961 to 2022 (11 stations).
Data as of . Last revised (2026-10-12).
Key Facts
- From 1961 to 2022, long-record stations in Slovenia warmed by +0.45 C per decade (+0.81 F) (95 percent interval +0.36 to +0.54 C), from 11 stations measured against each station's own 1961-1990 mean.
- The latest year in the series for Slovenia, 2022, was +2.60 C against the 1961-1990 mean.
- In Slovenia the daily maximum rose faster than the daily minimum, by 0.09 C per decade (the two intervals overlap).
- Of 11 stations in Slovenia with at least 50 complete years of record, 5 had 2022 as their warmest year.
- In Slovenia, the mean annual temperature of 10 stations changed by +2.11 C between the 1961-1990 and 2011-2025 periods.
Warming
Slovenia, against 1961-1990| Year | Difference from the 1961-1990 mean |
|---|---|
| 1961 | +0.72 C |
| 1962 | -1.03 C |
| 1963 | -0.58 C |
| 1964 | -0.24 C |
| 1965 | -0.72 C |
| 1966 | +0.57 C |
| 1967 | +0.41 C |
| 1968 | -0.16 C |
| 1969 | -0.45 C |
| 1970 | -0.33 C |
| 1971 | -0.25 C |
| 1972 | -0.24 C |
| 1973 | -0.39 C |
| 1974 | +0.34 C |
| 1975 | +0.55 C |
| 1976 | -0.38 C |
| 1977 | +0.44 C |
| 1978 | -0.77 C |
| 1979 | +0.09 C |
| 1980 | -0.79 C |
| 1981 | +0.05 C |
| 1982 | +0.54 C |
| 1983 | +0.53 C |
| 1984 | -0.36 C |
| 1985 | -0.40 C |
| 1986 | -0.17 C |
| 1987 | -0.06 C |
| 1988 | +0.70 C |
| 1989 | +1.02 C |
| 1990 | +0.94 C |
| 1991 | +0.09 C |
| 1992 | +1.32 C |
| 1993 | +0.70 C |
| 1994 | +1.84 C |
| 1995 | +0.68 C |
| 1996 | -0.30 C |
| 1997 | +0.69 C |
| 1998 | +0.95 C |
| 1999 | +1.01 C |
| 2000 | +2.13 C |
| 2001 | +1.23 C |
| 2002 | +1.83 C |
| 2003 | +1.29 C |
| 2004 | +0.59 C |
| 2005 | +0.23 C |
| 2006 | +1.07 C |
| 2007 | +1.89 C |
| 2008 | +1.75 C |
| 2009 | +1.63 C |
| 2010 | +0.65 C |
| 2011 | +1.70 C |
| 2012 | +1.86 C |
| 2013 | +1.52 C |
| 2014 | +2.62 C |
| 2015 | +2.26 C |
| 2016 | +1.88 C |
| 2017 | +1.85 C |
| 2018 | +2.47 C |
| 2019 | +2.55 C |
| 2020 | +2.15 C |
| 2021 | +1.40 C |
| 2022 | +2.60 C |
From 1961 to 2022, the long-record stations in Slovenia warmed by +0.45 C per decade (+0.81 F) (95 percent interval +0.36 to +0.54 C), from 11 stations in 2 grid cells of 5 by 5 degrees, each measured against its own 1961-1990 mean.
The latest year in the series, 2022, was +2.6 C (+4.7 F) against the 1961-1990 mean.
The five warmest years in the series are 2014 (+2.62 C), 2022 (+2.60 C), 2019 (+2.55 C), 2018 (+2.47 C) and 2015 (+2.26 C).
Trend
| Measure | Trend per decade (C) | 95% interval (C) | Years | Stations |
|---|---|---|---|---|
| Annual mean temperature | +0.45 | +0.36 to +0.54 | 1961 to 2022 | 11 |
Warmest and coolest years in the series
| Rank | Warmest year | Difference from mean | Coolest year | Difference from mean |
|---|---|---|---|---|
| 1 | 2014 | +2.62 C | 1962 | -1.03 C |
| 2 | 2022 | +2.60 C | 1980 | -0.79 C |
| 3 | 2019 | +2.55 C | 1978 | -0.77 C |
| 4 | 2018 | +2.47 C | 1965 | -0.72 C |
| 5 | 2015 | +2.26 C | 1963 | -0.58 C |
11 stations in 2 grid cells of 5 by 5 degrees. Each station is compared with its own 1961-1990 mean, so stations at different heights and latitudes can be averaged. Stations are averaged within each grid cell and cells are weighted by the cosine of latitude.
Warmest Years
Slovenia, 11 stations| Year | Stations with this as their warmest year |
|---|---|
| 2000 | 1 |
| 2001 | 0 |
| 2002 | 0 |
| 2003 | 0 |
| 2004 | 0 |
| 2005 | 0 |
| 2006 | 0 |
| 2007 | 0 |
| 2008 | 0 |
| 2009 | 0 |
| 2010 | 0 |
| 2011 | 0 |
| 2012 | 0 |
| 2013 | 0 |
| 2014 | 4 |
| 2015 | 0 |
| 2016 | 0 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 5 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 1 |
Of the 11 stations in Slovenia with at least 50 complete years of record, 5 (45.5%) had 2022 as their warmest year on record.
The years that were the warmest on record at the most stations are 2022 (5 stations), 2014 (4 stations), 2025 (1 station) and 2000 (1 station).
6 of the 11 stations (54.5%) had their warmest year in the 2020s. That decade is not over.
By decade
| Decade | Stations with their warmest year in it | Share of stations | Stations with one of their five warmest years in it |
|---|---|---|---|
| 2000s | 1 | 9.1% | 2 |
| 2010s | 4 | 36.4% | 38 |
| 2020s (to date) | 6 | 54.5% | 15 |
The set is the 11 stations with at least 50 complete years (all twelve months with 20 or more days of maximum and minimum). A station's warmest year is the one with the highest annual mean temperature, a tie going to the later year. The count describes these stations, not the whole area.
Days and Nights
Slovenia, against 1961-1990| Year | Daily maximum | Daily minimum | Day-night range (maximum minus minimum) |
|---|---|---|---|
| 1961 | +1.11 C | +0.32 C | +0.78 C |
| 1962 | -1.08 C | -0.98 C | -0.10 C |
| 1963 | -0.57 C | -0.59 C | +0.02 C |
| 1964 | -0.38 C | -0.11 C | -0.26 C |
| 1965 | -0.73 C | -0.71 C | -0.02 C |
| 1966 | +0.39 C | +0.75 C | -0.36 C |
| 1967 | +0.69 C | +0.13 C | +0.56 C |
| 1968 | -0.06 C | -0.26 C | +0.20 C |
| 1969 | -0.49 C | -0.42 C | -0.07 C |
| 1970 | -0.36 C | -0.31 C | -0.04 C |
| 1971 | +0.11 C | -0.61 C | +0.72 C |
| 1972 | -0.51 C | +0.03 C | -0.55 C |
| 1973 | -0.20 C | -0.59 C | +0.40 C |
| 1974 | +0.18 C | +0.50 C | -0.32 C |
| 1975 | +0.39 C | +0.71 C | -0.32 C |
| 1976 | -0.31 C | -0.46 C | +0.15 C |
| 1977 | +0.50 C | +0.38 C | +0.12 C |
| 1978 | -0.89 C | -0.66 C | -0.23 C |
| 1979 | -0.03 C | +0.20 C | -0.23 C |
| 1980 | -1.03 C | -0.55 C | -0.48 C |
| 1981 | +0.30 C | -0.20 C | +0.50 C |
| 1982 | +0.34 C | +0.74 C | -0.39 C |
| 1983 | +0.91 C | +0.15 C | +0.75 C |
| 1984 | -0.80 C | +0.09 C | -0.90 C |
| 1985 | -0.22 C | -0.58 C | +0.36 C |
| 1986 | -0.20 C | -0.14 C | -0.05 C |
| 1987 | -0.30 C | +0.18 C | -0.49 C |
| 1988 | +0.66 C | +0.74 C | -0.08 C |
| 1989 | +1.11 C | +0.93 C | +0.19 C |
| 1990 | +1.19 C | +0.69 C | +0.50 C |
| 1991 | -0.05 C | +0.22 C | -0.27 C |
| 1992 | +1.48 C | +1.15 C | +0.33 C |
| 1993 | +0.73 C | +0.68 C | +0.05 C |
| 1994 | +1.83 C | +1.86 C | -0.03 C |
| 1995 | +0.54 C | +0.82 C | -0.28 C |
| 1996 | -0.85 C | +0.25 C | -1.10 C |
| 1997 | +0.75 C | +0.64 C | +0.11 C |
| 1998 | +1.19 C | +0.72 C | +0.47 C |
| 1999 | +0.86 C | +1.17 C | -0.30 C |
| 2000 | +2.54 C | +1.71 C | +0.82 C |
| 2001 | +1.42 C | +1.04 C | +0.38 C |
| 2002 | +1.77 C | +1.89 C | -0.12 C |
| 2003 | +1.97 C | +0.61 C | +1.36 C |
| 2004 | +0.47 C | +0.72 C | -0.26 C |
| 2005 | +0.24 C | +0.22 C | +0.02 C |
| 2006 | +1.31 C | +0.83 C | +0.48 C |
| 2007 | +2.27 C | +1.52 C | +0.76 C |
| 2008 | +1.68 C | +1.81 C | -0.13 C |
| 2009 | +1.70 C | +1.56 C | +0.13 C |
| 2010 | +0.29 C | +1.00 C | -0.71 C |
| 2011 | +2.17 C | +1.24 C | +0.93 C |
| 2012 | +2.32 C | +1.40 C | +0.92 C |
| 2013 | +1.29 C | +1.75 C | -0.45 C |
| 2014 | +2.28 C | +2.97 C | -0.70 C |
| 2015 | +2.53 C | +1.99 C | +0.54 C |
| 2016 | +2.02 C | +1.74 C | +0.27 C |
| 2017 | +2.55 C | +1.15 C | +1.40 C |
| 2018 | +2.46 C | +2.48 C | -0.02 C |
| 2019 | +2.86 C | +2.24 C | +0.62 C |
| 2020 | +2.64 C | +1.66 C | +0.98 C |
| 2021 | +1.84 C | +0.97 C | +0.87 C |
| 2022 | +3.19 C | +2.00 C | +1.18 C |
From 1961 to 2022, the daily maximum in Slovenia changed by +0.50 C per decade (+0.90 F) (95 percent interval +0.39 to +0.60 C) and the daily minimum by +0.41 C per decade (+0.73 F) (95 percent interval +0.32 to +0.49 C), from 11 stations.
The daily maximum rose faster, by 0.09 C per decade more than the daily minimum; the two intervals overlap, so the data do not separate them.
The day-night range (daily maximum minus daily minimum) changed by +0.09 C per decade (95 percent interval +0.02 to +0.17 C), which means the range widened.
Trends per decade
| Measure | Trend per decade (C) | 95% interval (C) | Years | Stations |
|---|---|---|---|---|
| Daily maximum | +0.50 | +0.39 to +0.60 | 1961 to 2022 | 11 |
| Daily minimum | +0.41 | +0.32 to +0.49 | 1961 to 2022 | 11 |
| Day-night range (maximum minus minimum) | +0.09 | +0.02 to +0.17 | 1961 to 2022 | 11 |
The day-night range is the daily maximum minus the daily minimum, so a falling range means the minimum rose by more than the maximum. Intervals allow for year to year persistence in the series.
Heavy Rain and Dry Spells by Decade: Slovenia
11 stations in the annual rain series- In Slovenia, annual rain at 11 stations is shown as a percent difference from each station's own 1961-1990 mean, for 62 years from 1961 to 2022.
- The trend in annual rain is -0.8 percent per decade (95 percent interval -2.3 to +0.8), fitted to 62 years from 1961 to 2022. The interval includes zero, so the series does not separate a trend from year to year variation.
Annual rain against the 1961-1990 mean
| Year | Annual rain, percent difference from the mean |
|---|---|
| 1961 | 0.8% |
| 1962 | 14.9% |
| 1963 | 7.6% |
| 1964 | 5.6% |
| 1965 | 31.6% |
| 1966 | 7.5% |
| 1967 | -10.4% |
| 1968 | -8.5% |
| 1969 | 1.5% |
| 1970 | -3.7% |
| 1971 | -29.3% |
| 1972 | 13.2% |
| 1973 | -7.6% |
| 1974 | 0.4% |
| 1975 | -4.4% |
| 1976 | -5.5% |
| 1977 | -5.1% |
| 1978 | -5.9% |
| 1979 | 11.4% |
| 1980 | 8.6% |
| 1981 | -4.9% |
| 1982 | 4.0% |
| 1983 | -21.7% |
| 1984 | 2.6% |
| 1985 | 3.1% |
| 1986 | -5.5% |
| 1987 | 12.0% |
| 1988 | -9.5% |
| 1989 | -4.5% |
| 1990 | 4.9% |
| 1991 | 0.9% |
| 1992 | 1.3% |
| 1993 | -8.2% |
| 1994 | 0.5% |
| 1995 | 8.1% |
| 1996 | 7.4% |
| 1997 | -12.5% |
| 1998 | -1.7% |
| 1999 | 5.6% |
| 2000 | -2.5% |
| 2001 | -6.2% |
| 2002 | -0.4% |
| 2003 | -22.5% |
| 2004 | 7.2% |
| 2005 | 1.9% |
| 2006 | -10.6% |
| 2007 | -4.5% |
| 2008 | 3.2% |
| 2009 | 5.2% |
| 2010 | 13.0% |
| 2011 | -24.1% |
| 2012 | -0.8% |
| 2013 | 5.5% |
| 2014 | 31.6% |
| 2015 | -17.5% |
| 2016 | 2.2% |
| 2017 | 0.8% |
| 2018 | -7.0% |
| 2019 | 7.2% |
| 2020 | -2.1% |
| 2021 | -7.5% |
| 2022 | -17.9% |
The annual rain series uses stations with at least 50 complete years since 1951 and a 1961-1990 baseline. The decade charts use fixed sets of stations, the same in every decade from the 1960s. A dry day has less than 1 mm (0.04 in) of rain.
The New Normal
Slovenia, 1961-1990 against 2011-2025| Station | Change in mean temperature |
|---|---|
| Nova Vas Na Blokah | +2.3 C (+4.2 F) |
| Murska Sobota-Rakican | +2.3 C (+4.2 F) |
| Ljubljana Bezigrad | +2.3 C (+4.1 F) |
| Smartno Pri Slovenj Gradcu | +2.2 C (+3.9 F) |
| Postojna | +2.1 C (+3.8 F) |
| Ratece-Planica | +2.0 C (+3.5 F) |
| Kredarica | +1.7 C (+3.1 F) |
Across 10 stations in Slovenia with long records, the mean annual temperature was 7.7 C (45.9 F) in 1961-1990, 9.1 C (48.4 F) in 1991-2020 and 9.8 C (49.7 F) in 2011-2025, a change of +2.1 C (+3.8 F) from the first period to the latest.
Mean annual rain, from years with at least 329 days of rain data, was 1,328.3 mm (52.3 in) in 1961-1990, 1,314.9 mm (51.8 in) in 1991-2020 and 1,295.3 mm (51.0 in) in 2011-2025, a change of -2.5% from the first period to the latest.
Of the 7 stations on the map, 7 were warmer in 2011-2025 than in 1961-1990.
4 of the 7 stations on the map with a rain figure had more rain and 3 had less.
Three periods
| Period | Mean temperature | Annual rain |
|---|---|---|
| 1961-1990 | 7.7 C (45.9 F) | 1,328.3 mm (52.3 in) |
| 1991-2020 | 9.1 C (48.4 F) | 1,314.9 mm (51.8 in) |
| 2011-2025 | 9.8 C (49.7 F) | 1,295.3 mm (51.0 in) |
| Change, 1991-2020 against 1961-1990 | +1.4 C (+2.5 F) | -1.0% |
| Change, 2011-2025 against 1961-1990 | +2.1 C (+3.8 F) | -2.5% |
Based on 10 stations with at least 20 complete years in 1961-1990 and in 1991-2020 and at least 8 in 2011-2025. The periods 1991-2020 and 2011-2025 overlap. Scope means are weighted by grid cell, as in the warming series; rain counts years with at least 329 days of rain data.
Longest Hot, Cold, Wet and Dry Streaks: Slovenia
5 lists of 10- In Slovenia, the longest run of hot days in a row in the data is 8 days, at Bilje (Slovenia), from 20 July 2006 to 27 July 2006.
- In Slovenia, the longest run of frost days in a row in the data is 202 days, at Kredarica (Slovenia), from 12 November 1977 to 1 June 1978.
- In Slovenia, the longest run of ice days in a row in the data is 85 days, at Kredarica (Slovenia), from 23 January 1962 to 17 April 1962.
- In Slovenia, the longest run of dry days in a row in the data is 90 days, at Bilje (Slovenia), in 2017.
- In Slovenia, the longest run of wet days in a row in the data is 23 days, at Nova Vas Na Blokah (Slovenia), in 1964.
Longest run of days at or above 35 C
Consecutive days with a daily maximum at or above 35 C (95 F).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Bilje | Slovenia | 8 days | 20 to 27 July 2006 |
| 2 | Ljubljana Bezigrad | Slovenia | 7 days | 2 to 8 August 2013 |
| 3 | Portoroz-Letalisce | Slovenia | 6 days | 3 to 8 August 2013 |
| 4 | Crnomelj-Doblice | Slovenia | 5 days | 17 to 21 August 2000 |
| 5 | Murska Sobota-Rakican | Slovenia | 5 days | 16 to 20 July 2007 |
| 6 | Postojna | Slovenia | 5 days | 4 to 8 August 2013 |
| 7 | Kocevje | Slovenia | 5 days | 31 July to 4 August 2017 |
| 8 | Letalisce Edvarda Rusjana Mari | Slovenia | 4 days | 6 to 9 August 2013 |
| 9 | Novo Mesto | Slovenia | 3 days | 19 to 21 August 1992 |
| 10 | Letalisce Jozeta Pucnika Ljubl | Slovenia | 3 days | 19 to 21 August 1992 |
Longest run of frost days (minimum at or below 0 C)
Consecutive days with a daily minimum at or below 0 C (32 F).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Kredarica | Slovenia | 202 days | 12 November 1977 to 1 June 1978 |
| 2 | Ratece-Planica | Slovenia | 145 days | 5 November 1983 to 28 March 1984 |
| 3 | Vojsko | Slovenia | 125 days | 17 November 2005 to 21 March 2006 |
| 4 | Letalisce Jozeta Pucnika Ljubl | Slovenia | 123 days | 6 December 1975 to 6 April 1976 |
| 5 | Smartno Pri Slovenj Gradcu | Slovenia | 112 days | 12 November 1998 to 3 March 1999 |
| 6 | Letalisce Edvarda Rusjana Mari | Slovenia | 91 days | 1 December 1998 to 1 March 1999 |
| 7 | Murska Sobota-Rakican | Slovenia | 91 days | 1 December 1998 to 1 March 1999 |
| 8 | Nova Vas Na Blokah | Slovenia | 82 days | 4 January to 25 March 1984 |
| 9 | Lesce | Slovenia | 78 days | 25 November 1986 to 10 February 1987 |
| 10 | Kocevje | Slovenia | 71 days | 14 November 2001 to 23 January 2002 |
Longest run of ice days (maximum at or below 0 C)
Consecutive days with a daily maximum at or below 0 C (32 F).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Kredarica | Slovenia | 85 days | 23 January to 17 April 1962 |
| 2 | Murska Sobota-Rakican | Slovenia | 31 days | 11 January to 10 February 1963 |
| 3 | Smartno Pri Slovenj Gradcu | Slovenia | 30 days | 11 January to 9 February 1963 |
| 4 | Veliki Dolenci | Slovenia | 30 days | 22 December 1996 to 20 January 1997 |
| 5 | Ratece-Planica | Slovenia | 28 days | 22 December 1984 to 18 January 1985 |
| 6 | Vojsko | Slovenia | 27 days | 26 December 1979 to 21 January 1980 |
| 7 | Letalisce Edvarda Rusjana Mari | Slovenia | 26 days | 27 December 1984 to 21 January 1985 |
| 8 | Kocevje | Slovenia | 23 days | 27 December 1984 to 18 January 1985 |
| 9 | Novo Mesto | Slovenia | 23 days | 29 December 1984 to 20 January 1985 |
| 10 | Lisca | Slovenia | 23 days | 31 January to 22 February 2003 |
Longest dry spell (days under 1 mm of rain), within one year
Consecutive days with less than 1 mm (0.04 in) of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Bilje | Slovenia | 90 days | within 2017 |
| 2 | Murska Sobota-Rakican | Slovenia | 80 days | within 2017 |
| 3 | Portoroz-Letalisce | Slovenia | 75 days | within 1998 |
| 4 | Smartno Pri Slovenj Gradcu | Slovenia | 68 days | within 2017 |
| 5 | Letalisce Edvarda Rusjana Mari | Slovenia | 60 days | within 1993 |
| 6 | Kredarica | Slovenia | 57 days | within 1993 |
| 7 | Novo Mesto | Slovenia | 57 days | within 1993 |
| 8 | Veliki Dolenci | Slovenia | 54 days | within 1993 |
| 9 | Ratece-Planica | Slovenia | 53 days | within 1989 |
| 10 | Ljubljana Bezigrad | Slovenia | 52 days | within 1949 |
Longest wet spell (days with 1 mm or more of rain), within one year
Consecutive days with 1 mm (0.04 in) or more of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).
| Rank | Station | Country | Length | When |
|---|---|---|---|---|
| 1 | Nova Vas Na Blokah | Slovenia | 23 days | within 1964 |
| 2 | Kredarica | Slovenia | 18 days | within 1992 |
| 3 | Ljubljana Bezigrad | Slovenia | 17 days | within 1905 |
| 4 | Kocevje | Slovenia | 16 days | within 1974 |
| 5 | Vojsko | Slovenia | 16 days | within 1998 |
| 6 | Topol Pri Medvodah | Slovenia | 15 days | within 1998 |
| 7 | Postojna | Slovenia | 15 days | within 1998 |
| 8 | Ratece-Planica | Slovenia | 14 days | within 2019 |
| 9 | Portoroz-Letalisce | Slovenia | 13 days | within 1996 |
| 10 | Novo Mesto | Slovenia | 13 days | within 2017 |
A run belongs to the year it started in, even when it ran on into the next year. A station appears once per list, with its longest run in a complete year. Dry and wet spells are the longest run within a year. Lists use complete years only, so a long run in a year with gaps in the record is not counted.
Biggest One Day Temperature Swings: Slovenia
6 lists of 10- In Slovenia, the largest reported one day rise in the daily maximum is 18.8 C (33.8 F), at Murska Sobota-Rakican (Slovenia) on 1 January 1977.
- In Slovenia, the largest reported one day drop in the daily maximum is 16.9 C (30.4 F), at Postojna (Slovenia) on 16 July 1970.
- In Slovenia, the largest reported one day rise in the daily minimum is 28.5 C (51.3 F), at Nova Vas Na Blokah (Slovenia) on 15 January 1968.
- In Slovenia, the largest reported one day drop in the daily minimum is 20.4 C (36.7 F), at Nova Vas Na Blokah (Slovenia) on 27 January 1995.
- In Slovenia, the largest reported widest range between the high and the low of one day is 32.0 C (57.6 F), at Nova Vas Na Blokah (Slovenia) on 10 February 2005.
- In Slovenia, the smallest reported narrowest range between the high and the low of one day is 0.1 C (0.2 F), at Kocevje (Slovenia) on 30 August 1972.
Caveat.Single readings can still be instrument errors that quality control missed. A station with one faulty value can top a list, so read each entry as a reported value, not as a confirmed event.
Biggest one day rise in the daily maximum
The largest increase in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Murska Sobota-Rakican | Slovenia | 18.8 C (33.8 F) | 1 January 1977 |
| 2 | Kredarica | Slovenia | 18.2 C (32.8 F) | 14 January 1968 |
| 3 | Crnomelj-Doblice | Slovenia | 16.2 C (29.2 F) | 2 December 2011 |
| 4 | Letalisce Jozeta Pucnika Ljubl | Slovenia | 15.1 C (27.2 F) | 9 April 1967 |
| 5 | Nova Vas Na Blokah | Slovenia | 14.9 C (26.8 F) | 7 January 1993 |
| 6 | Kocevje | Slovenia | 14.9 C (26.8 F) | 25 December 1999 |
| 7 | Letalisce Edvarda Rusjana Mari | Slovenia | 14.6 C (26.3 F) | 26 December 1999 |
| 8 | Postojna | Slovenia | 14.1 C (25.4 F) | 9 April 1967 |
| 9 | Novo Mesto | Slovenia | 14.1 C (25.4 F) | 21 December 2015 |
| 10 | Ljubljana Bezigrad | Slovenia | 14.0 C (25.2 F) | 29 March 1952 |
Biggest one day drop in the daily maximum
The largest decrease in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Postojna | Slovenia | 16.9 C (30.4 F) | 16 July 1970 |
| 2 | Kocevje | Slovenia | 16.9 C (30.4 F) | 13 May 2012 |
| 3 | Lisca | Slovenia | 16.8 C (30.2 F) | 24 April 1988 |
| 4 | Murska Sobota-Rakican | Slovenia | 16.6 C (29.9 F) | 19 November 1972 |
| 5 | Crnomelj-Doblice | Slovenia | 16.4 C (29.5 F) | 10 December 2010 |
| 6 | Veliki Dolenci | Slovenia | 15.9 C (28.6 F) | 4 August 1988 |
| 7 | Kredarica | Slovenia | 15.5 C (27.9 F) | 4 February 2016 |
| 8 | Ratece-Planica | Slovenia | 15.4 C (27.7 F) | 12 March 1983 |
| 9 | Novo Mesto | Slovenia | 15.4 C (27.7 F) | 15 November 1987 |
| 10 | Ljubljana Bezigrad | Slovenia | 15.3 C (27.5 F) | 19 November 1972 |
Biggest one day rise in the daily minimum
The largest increase in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Nova Vas Na Blokah | Slovenia | 28.5 C (51.3 F) | 15 January 1968 |
| 2 | Kocevje | Slovenia | 23.4 C (42.1 F) | 15 January 1968 |
| 3 | Murska Sobota-Rakican | Slovenia | 22.9 C (41.2 F) | 22 December 2009 |
| 4 | Postojna | Slovenia | 22.5 C (40.5 F) | 15 January 1968 |
| 5 | Kredarica | Slovenia | 20.4 C (36.7 F) | 15 January 1968 |
| 6 | Letalisce Jozeta Pucnika Ljubl | Slovenia | 20.0 C (36.0 F) | 22 December 2009 |
| 7 | Letalisce Edvarda Rusjana Mari | Slovenia | 19.4 C (34.9 F) | 22 December 2009 |
| 8 | Crnomelj-Doblice | Slovenia | 19.0 C (34.2 F) | 1 February 2004 |
| 9 | Ljubljana Bezigrad | Slovenia | 17.9 C (32.2 F) | 28 January 1914 |
| 10 | Lesce | Slovenia | 17.4 C (31.3 F) | 22 December 2009 |
Biggest one day drop in the daily minimum
The largest decrease in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Nova Vas Na Blokah | Slovenia | 20.4 C (36.7 F) | 27 January 1995 |
| 2 | Murska Sobota-Rakican | Slovenia | 17.6 C (31.7 F) | 20 December 1981 |
| 3 | Kredarica | Slovenia | 16.7 C (30.1 F) | 7 January 1982 |
| 4 | Letalisce Edvarda Rusjana Mari | Slovenia | 15.9 C (28.6 F) | 20 December 1981 |
| 5 | Novo Mesto | Slovenia | 15.1 C (27.2 F) | 18 November 1995 |
| 6 | Lesce | Slovenia | 14.6 C (26.3 F) | 12 January 1987 |
| 7 | Vojsko | Slovenia | 14.5 C (26.1 F) | 3 March 1987 |
| 8 | Crnomelj-Doblice | Slovenia | 14.5 C (26.1 F) | 23 November 1989 |
| 9 | Lisca | Slovenia | 13.9 C (25.0 F) | 18 November 1995 |
| 10 | Postojna | Slovenia | 13.8 C (24.8 F) | 9 January 1968 |
Widest range between the high and the low of one day
The largest difference between the highest and the lowest temperature of the same day. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Nova Vas Na Blokah | Slovenia | 32.0 C (57.6 F) | 10 February 2005 |
| 2 | Kocevje | Slovenia | 29.2 C (52.6 F) | 3 March 1963 |
| 3 | Murska Sobota-Rakican | Slovenia | 28.9 C (52.0 F) | 1 January 1977 |
| 4 | Crnomelj-Doblice | Slovenia | 28.5 C (51.3 F) | 24 March 2022 |
| 5 | Smartno Pri Slovenj Gradcu | Slovenia | 28.3 C (50.9 F) | 24 March 2022 |
| 6 | Letalisce Jozeta Pucnika Ljubl | Slovenia | 27.2 C (49.0 F) | 23 October 1971 |
| 7 | Postojna | Slovenia | 26.6 C (47.9 F) | 6 February 2011 |
| 8 | Ljubljana Bezigrad | Slovenia | 25.0 C (45.0 F) | 17 March 1938 |
| 9 | Ratece-Planica | Slovenia | 24.8 C (44.6 F) | 24 March 2003 |
| 10 | Novo Mesto | Slovenia | 24.2 C (43.6 F) | 16 April 2020 |
Narrowest range between the high and the low of one day
The smallest difference between the highest and the lowest temperature of the same day. Values are in degrees Celsius with Fahrenheit beside them.
| Rank | Station | Country | Value | Date |
|---|---|---|---|---|
| 1 | Kocevje | Slovenia | 0.1 C (0.2 F) | 30 August 1972 |
| 2 | Kredarica | Slovenia | 0.2 C (0.4 F) | 11 November 1955 |
| 3 | Lesce | Slovenia | 0.2 C (0.4 F) | 20 December 1994 |
| 4 | Nova Vas Na Blokah | Slovenia | 0.2 C (0.4 F) | 21 November 1999 |
| 5 | Crnomelj-Doblice | Slovenia | 0.2 C (0.4 F) | 1 December 2010 |
| 6 | Lisca | Slovenia | 0.2 C (0.4 F) | 15 December 2015 |
| 7 | Murska Sobota-Rakican | Slovenia | 0.3 C (0.5 F) | 10 December 1964 |
| 8 | Postojna | Slovenia | 0.3 C (0.5 F) | 5 December 2002 |
| 9 | Ljubljana Bezigrad | Slovenia | 0.4 C (0.7 F) | 22 January 1910 |
| 10 | Novo Mesto | Slovenia | 0.4 C (0.7 F) | 1 December 1997 |
Only stations with at least 10 complete years are listed, and a station appears once per list.
Hot and Dry Summers: Slovenia
10 stations with a 1961-1990 record- In Slovenia, the share of stations with a hot and dry summer is shown for each year from 1964 to 2023, for 10 stations with at least 20 complete summers in 1961-1990. Each year counts the stations of that set with a complete summer in the year.
- In Slovenia, 7.7% of station summers in 1961-1990 were hot and dry (220 station summers).
- In Slovenia, 43.6% of station summers in 2009-2023 were hot and dry (140 station summers).
- In Slovenia, 2013 had the highest share: 100.0% of 10 stations (10).
A summer is hot when its mean daily maximum is at or above the station's 80th percentile of its 1961-1990 summers, and dry when its rain is at or below the 20th percentile. A summer is hot and dry when it is both. Summer is June to August north of the equator and December to February south of it, labelled by the year of its first month.
Share of stations with a hot and dry summer
| Summer | Stations with a hot and dry summer |
|---|---|
| 1964 | 10.0% |
| 1965 | 0.0% |
| 1967 | 50.0% |
| 1968 | 0.0% |
| 1969 | 0.0% |
| 1970 | 0.0% |
| 1972 | 0.0% |
| 1973 | 0.0% |
| 1974 | 0.0% |
| 1975 | 0.0% |
| 1976 | 0.0% |
| 1977 | 0.0% |
| 1979 | 0.0% |
| 1980 | 0.0% |
| 1981 | 0.0% |
| 1982 | 0.0% |
| 1983 | 90.0% |
| 1984 | 0.0% |
| 1986 | 0.0% |
| 1987 | 0.0% |
| 1988 | 20.0% |
| 1990 | 0.0% |
| 1991 | 30.0% |
| 1992 | 80.0% |
| 1995 | 0.0% |
| 1996 | 0.0% |
| 1997 | 0.0% |
| 1998 | 0.0% |
| 1999 | 0.0% |
| 2000 | 70.0% |
| 2001 | 80.0% |
| 2002 | 0.0% |
| 2003 | 70.0% |
| 2004 | 10.0% |
| 2005 | 0.0% |
| 2006 | 40.0% |
| 2007 | 50.0% |
| 2008 | 0.0% |
| 2009 | 30.0% |
| 2010 | 10.0% |
| 2011 | 30.0% |
| 2012 | 70.0% |
| 2013 | 100.0% |
| 2014 | 0.0% |
| 2015 | 60.0% |
| 2016 | 40.0% |
| 2018 | 30.0% |
| 2019 | 60.0% |
| 2020 | 0.0% |
| 2021 | 90.0% |
| 2022 | 90.0% |
| 2023 | 0.0% |
The ten most extreme station summers
| Rank | Station | Country | Summer | Mean daily maximum vs 1961-1990 | Rain, percent of 1961-1990 mean |
|---|---|---|---|---|---|
| 1 | Ljubljana Bezigrad | Slovenia | 2022 | +5.0 C (+9.0 F) | 44% |
| 2 | Kocevje | Slovenia | 2022 | +4.7 C (+8.5 F) | 43% |
| 3 | Nova Vas Na Blokah | Slovenia | 2022 | +4.9 C (+8.9 F) | 55% |
| 4 | Smartno Pri Slovenj Gradcu | Slovenia | 2022 | +4.4 C (+7.9 F) | 57% |
| 5 | Vojsko | Slovenia | 2019 | +4.5 C (+8.0 F) | 62% |
| 6 | Letalisce Jozeta Pucnika Ljubl | Slovenia | 2022 | +4.5 C (+8.1 F) | 40% |
| 7 | Vojsko | Slovenia | 2000 | +4.5 C (+8.1 F) | 74% |
| 8 | Kocevje | Slovenia | 2012 | +4.7 C (+8.4 F) | 69% |
| 9 | Nova Vas Na Blokah | Slovenia | 2021 | +3.8 C (+6.8 F) | 44% |
| 10 | Smartno Pri Slovenj Gradcu | Slovenia | 2013 | +3.6 C (+6.5 F) | 49% |
Ranked by the temperature z score minus the rain z score against the station's own 1961-1990 mean and standard deviation (at least 0.3 C and 5 mm). A summer is labelled by the year of its first month.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12. Trends and counts are computed by this site from daily station records. The long-record station set is described under each chart.