Bilje Weather Records (SIE00115106)

Record envelope, standing records and threshold days for Bilje (SIE00115106), Slovenia, with 33 years of record.

Key Facts for Bilje

Bilje (SIE00115106) is a weather station in Slovenia at 45.90 latitude and 13.60 longitude, 55 m (180 ft) above sea level.
The station reports from 1991 to 2023, 33 years of record.
1,464 records set at Bilje still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Bilje set a daily record high maximum temperature of 27.8 C (82.0 F) on 27 September 2023.

About the Station

Location: Slovenia, 45.90 latitude, 13.60 longitude.
Elevation: 55 m (180 ft).
Period of record: 1991 to 2023, 33 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Bilje. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Bilje, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	16.8 C (62.2 F)	-11.7 C (10.9 F)	n/a	n/a
Feb	25.3 C (77.5 F)	-10.3 C (13.5 F)	n/a	n/a
Mar	25.4 C (77.7 F)	-11.5 C (11.3 F)	n/a	n/a
Apr	30.5 C (86.9 F)	-5.3 C (22.5 F)	n/a	n/a
May	33.7 C (92.7 F)	2.6 C (36.7 F)	n/a	n/a
Jun	37.0 C (98.6 F)	4.0 C (39.2 F)	n/a	n/a
Jul	38.6 C (101.5 F)	7.5 C (45.5 F)	n/a	n/a
Aug	39.0 C (102.2 F)	6.1 C (43.0 F)	n/a	n/a
Sep	33.3 C (91.9 F)	0.0 C (32.0 F)	n/a	n/a
Oct	29.8 C (85.6 F)	-4.8 C (23.4 F)	n/a	n/a
Nov	25.0 C (77.0 F)	-6.7 C (19.9 F)	n/a	n/a
Dec	18.1 C (64.6 F)	-13.9 C (7.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Bilje still stand. 2019 holds the most, with 83.

Standing records at Bilje by the year they were set
Year set	Standing records
1992	36
1993	51
1994	34
1995	41
1996	53
1997	54
1998	44
1999	26
2000	37
2001	42
2002	56
2003	66
2004	27
2005	50
2006	62
2007	51
2008	40
2009	50
2010	43
2011	50
2012	74
2013	49
2014	42
2015	31
2016	40
2017	36
2018	47
2019	83
2020	31
2021	34
2022	50
2023	34

All-Time Record Progression

1 new records

1 all-time records were set at Bilje between 29 June 2022 and 29 June 2022. Each dot is a new record.

Wettest Day of Each Month

Sep: 201.5 mm (7.9 in)

The wettest day on record for each calendar month at Bilje. The most was 201.5 mm (7.9 in) on 13 September 1997.

Record daily precipitation for each month at Bilje
Month	Record daily precipitation (mm)	Date
Jan	74.2 mm (2.9 in)	4 January 2014
Feb	60.8 mm (2.4 in)	19 February 2010
Mar	135.6 mm (5.3 in)	29 March 2009
Apr	75.3 mm (3.0 in)	12 April 2021
May	138.7 mm (5.5 in)	30 May 2010
Jun	99.7 mm (3.9 in)	10 June 1995
Jul	92.2 mm (3.6 in)	20 July 1997
Aug	82.2 mm (3.2 in)	28 August 1995
Sep	201.5 mm (7.9 in)	13 September 1997
Oct	161.6 mm (6.4 in)	27 October 2012
Nov	140.5 mm (5.5 in)	20 November 2000
Dec	103.3 mm (4.1 in)	26 December 1995

Period of Record Coverage

1992 to 2023

32 years of record at Bilje, 1992 to 2023. 2 years have data for under 90 percent of days and are left out of rankings: 2017, 2023.

Days with data per year at Bilje
Year	Days with data	Share of year	Complete
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	351	96%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	278	76%	No
2018	355	97%	Yes
2019	336	92%	Yes
2020	364	99%	Yes
2021	365	100%	Yes
2022	365	100%	Yes
2023	273	75%	No

Latest Records

Latest records at Bilje
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 September 2023	Bilje, SI	daily high max	27.8 C (82.0 F)	0.1 C (0.2 F)	12 years	6 of 100 (Routine)
22 September 2023	Bilje, SI	daily high min	17.5 C (63.5 F)	1.0 C (1.8 F)	18 years	10 of 100 (Routine)
19 September 2023	Bilje, SI	daily high min	17.9 C (64.2 F)	0.1 C (0.2 F)	8 years	5 of 100 (Routine)
25 August 2023	Bilje, SI	daily high min	20.4 C (68.7 F)	0.7 C (1.3 F)	12 years	8 of 100 (Routine)
25 August 2023	Bilje, SI	daily high max	35.4 C (95.7 F)	0.3 C (0.5 F)	12 years	6 of 100 (Routine)
24 August 2023	Bilje, SI	daily high max	36.3 C (97.3 F)	1.4 C (2.5 F)	12 years	9 of 100 (Routine)
23 August 2023	Bilje, SI	daily high max	36.8 C (98.2 F)	0.3 C (0.5 F)	12 years	6 of 100 (Routine)
23 August 2023	Bilje, SI	daily high min	20.1 C (68.2 F)	0.6 C (1.1 F)	4 years	6 of 100 (Routine)
22 August 2023	Bilje, SI	daily high max	36.2 C (97.2 F)	1.1 C (2.0 F)	12 years	8 of 100 (Routine)
7 August 2023	Bilje, SI	daily low min	11.1 C (52.0 F)	1.8 C (3.2 F)	17 years	14 of 100 (Routine)
5 August 2023	Bilje, SI	daily low max	19.2 C (66.6 F)	4.3 C (7.7 F)	22 years	20 of 100 (Routine)
4 August 2023	Bilje, SI	daily rain	57.8 mm (2.3 in)	7.3 mm (0.29 in)	20 years	14 of 100 (Routine)
27 July 2023	Bilje, SI	daily low min	10.2 C (50.4 F)	0.9 C (1.6 F)	29 years	14 of 100 (Routine)
25 July 2023	Bilje, SI	daily rain	35.4 mm (1.4 in)	1.1 mm (0.04 in)	8 years	5 of 100 (Routine)
21 July 2023	Bilje, SI	daily rain	23.3 mm (0.9 in)	13.2 mm (0.5 in)	8 years	14 of 100 (Routine)
18 July 2023	Bilje, SI	daily high max	36.0 C (96.8 F)	0.3 C (0.5 F)	8 years	5 of 100 (Routine)
12 July 2023	Bilje, SI	daily rain	14.3 mm (0.6 in)	5.9 mm (0.23 in)	29 years	15 of 100 (Routine)
11 July 2023	Bilje, SI	daily high min	19.5 C (67.1 F)	0.2 C (0.4 F)	12 years	6 of 100 (Routine)
10 July 2023	Bilje, SI	daily high max	35.0 C (95.0 F)	0.8 C (1.4 F)	16 years	10 of 100 (Routine)
27 May 2023	Bilje, SI	daily high min	16.6 C (61.9 F)	0.2 C (0.4 F)	30 years	12 of 100 (Routine)

Climate Trend

29 complete years, 1992 to 2022

One stripe for each of 29 complete years at Bilje, 1992 to 2022. Blue stripes are years cooler than the station's own mean of 13.5 C (56.2 F); red stripes are warmer. The coolest year was 1996, at 12.4 C (54.3 F), and the warmest was 2022, at 14.7 C (58.5 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Bilje as warming stripes, 1992 to 2022
Year	Annual mean temperature	Difference from the station mean
1992	13.0 C	-0.42 C
1993	12.7 C	-0.77 C
1994	13.8 C	+0.31 C
1995	12.6 C	-0.86 C
1996	12.4 C	-1.07 C
1997	13.0 C	-0.43 C
1998	13.1 C	-0.40 C
1999	13.2 C	-0.24 C
2000	13.7 C	+0.20 C
2001	13.3 C	-0.14 C
2002	13.8 C	+0.30 C
2003	13.7 C	+0.20 C
2004	12.9 C	-0.59 C
2005	12.4 C	-1.07 C
2006	13.1 C	-0.32 C
2007	13.8 C	+0.36 C
2008	13.5 C	+0.07 C
2009	13.8 C	+0.30 C
2010	12.7 C	-0.74 C
2011	13.6 C	+0.15 C
2012	13.6 C	+0.18 C
2013	13.7 C	+0.25 C
2014	14.5 C	+1.05 C
2015	14.0 C	+0.54 C
2016	13.8 C	+0.32 C
2018	14.5 C	+1.03 C
2020	13.9 C	+0.48 C
2021	13.5 C	+0.00 C
2022	14.7 C	+1.24 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1991 to 2023

Yearly extremes at Bilje: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.0 C (102.2 F)	2017	36.2 C (97.2 F)	32
Coldest night (TNn)	-13.9 C (7.0 F)	2009	-8.0 C (17.6 F)	32
Wettest day (Rx1day)	201.5 mm (7.9 in)	1997	78.6 mm (3.1 in)	33
Wettest five days (Rx5day)	276.7 mm (10.9 in)	2014	133.7 mm (5.3 in)	32
Longest dry spell (CDD)	90 days	2017	28 days	33

Hottest day (TXx)

The hottest day of the year at Bilje, 1991 to 2023. The record is 39.0 C (102.2 F) in 2017, marked on the chart; the median year is 36.2 C (97.2 F).

Hottest day (TXx) at Bilje by year
Year	Hottest day (TXx)
1991	n/a
1992	37.0 C (98.6 F)
1993	35.5 C (95.9 F)
1994	36.2 C (97.2 F)
1995	33.7 C (92.7 F)
1996	34.6 C (94.3 F)
1997	32.3 C (90.1 F)
1998	37.5 C (99.5 F)
1999	32.6 C (90.7 F)
2000	34.9 C (94.8 F)
2001	35.6 C (96.1 F)
2002	35.4 C (95.7 F)
2003	37.8 C (100.0 F)
2004	35.3 C (95.5 F)
2005	35.5 C (95.9 F)
2006	38.6 C (101.5 F)
2007	38.0 C (100.4 F)
2008	34.0 C (93.2 F)
2009	35.4 C (95.7 F)
2010	36.2 C (97.2 F)
2011	36.5 C (97.7 F)
2012	36.8 C (98.2 F)
2013	38.1 C (100.6 F)
2014	35.0 C (95.0 F)
2015	38.0 C (100.4 F)
2016	34.9 C (94.8 F)
2017	39.0 C (102.2 F)
2018	36.5 C (97.7 F)
2019	37.0 C (98.6 F)
2020	35.9 C (96.6 F)
2021	36.6 C (97.9 F)
2022	38.4 C (101.1 F)
2023	36.8 C (98.2 F)

Coldest night (TNn)

The coldest night of the year at Bilje, 1991 to 2023. The record is -13.9 C (7.0 F) in 2009, marked on the chart; the median year is -8.0 C (17.6 F).

Coldest night (TNn) at Bilje by year
Year	Coldest night (TNn)
1991	n/a
1992	-8.0 C (17.6 F)
1993	-10.3 C (13.5 F)
1994	-8.4 C (16.9 F)
1995	-7.3 C (18.9 F)
1996	-9.7 C (14.5 F)
1997	-5.5 C (22.1 F)
1998	-7.6 C (18.3 F)
1999	-7.2 C (19.0 F)
2000	-11.7 C (10.9 F)
2001	-9.3 C (15.3 F)
2002	-10.4 C (13.3 F)
2003	-8.8 C (16.2 F)
2004	-9.7 C (14.5 F)
2005	-11.5 C (11.3 F)
2006	-9.6 C (14.7 F)
2007	-6.5 C (20.3 F)
2008	-7.5 C (18.5 F)
2009	-13.9 C (7.0 F)
2010	-12.6 C (9.3 F)
2011	-7.8 C (18.0 F)
2012	-10.0 C (14.0 F)
2013	-5.7 C (21.7 F)
2014	-5.1 C (22.8 F)
2015	-5.4 C (22.3 F)
2016	-8.0 C (17.6 F)
2017	-11.2 C (11.8 F)
2018	-8.0 C (17.6 F)
2019	-7.6 C (18.3 F)
2020	-5.5 C (22.1 F)
2021	-8.3 C (17.1 F)
2022	-6.9 C (19.6 F)
2023	-7.5 C (18.5 F)

Wettest day (Rx1day)

The wettest day of the year at Bilje, 1991 to 2023. The record is 201.5 mm (7.9 in) in 1997, marked on the chart; the median year is 78.6 mm (3.1 in).

Wettest day (Rx1day) at Bilje by year
Year	Wettest day (Rx1day)
1991	0.0 mm (0.00 in)
1992	88.1 mm (3.5 in)
1993	109.7 mm (4.3 in)
1994	72.7 mm (2.9 in)
1995	103.3 mm (4.1 in)
1996	74.2 mm (2.9 in)
1997	201.5 mm (7.9 in)
1998	169.1 mm (6.7 in)
1999	48.3 mm (1.9 in)
2000	140.5 mm (5.5 in)
2001	67.2 mm (2.6 in)
2002	70.0 mm (2.8 in)
2003	96.0 mm (3.8 in)
2004	75.9 mm (3.0 in)
2005	76.8 mm (3.0 in)
2006	55.5 mm (2.2 in)
2007	50.6 mm (2.0 in)
2008	78.6 mm (3.1 in)
2009	135.6 mm (5.3 in)
2010	138.7 mm (5.5 in)
2011	85.7 mm (3.4 in)
2012	161.6 mm (6.4 in)
2013	58.5 mm (2.3 in)
2014	101.6 mm (4.0 in)
2015	95.6 mm (3.8 in)
2016	99.6 mm (3.9 in)
2017	86.8 mm (3.4 in)
2018	57.0 mm (2.2 in)
2019	47.8 mm (1.9 in)
2020	133.8 mm (5.3 in)
2021	75.3 mm (3.0 in)
2022	57.5 mm (2.3 in)
2023	76.2 mm (3.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bilje, 1991 to 2023. The record is 276.7 mm (10.9 in) in 2014, marked on the chart; the median year is 133.7 mm (5.3 in).

Wettest five days (Rx5day) at Bilje by year
Year	Wettest five days (Rx5day)
1991	n/a
1992	178.8 mm (7.0 in)
1993	163.1 mm (6.4 in)
1994	121.7 mm (4.8 in)
1995	152.1 mm (6.0 in)
1996	163.0 mm (6.4 in)
1997	203.7 mm (8.0 in)
1998	192.8 mm (7.6 in)
1999	76.3 mm (3.0 in)
2000	218.5 mm (8.6 in)
2001	115.5 mm (4.5 in)
2002	126.1 mm (5.0 in)
2003	140.7 mm (5.5 in)
2004	156.8 mm (6.2 in)
2005	120.6 mm (4.7 in)
2006	89.6 mm (3.5 in)
2007	103.0 mm (4.1 in)
2008	135.1 mm (5.3 in)
2009	187.5 mm (7.4 in)
2010	180.5 mm (7.1 in)
2011	130.0 mm (5.1 in)
2012	129.0 mm (5.1 in)
2013	97.7 mm (3.8 in)
2014	276.7 mm (10.9 in)
2015	192.3 mm (7.6 in)
2016	132.3 mm (5.2 in)
2017	147.2 mm (5.8 in)
2018	92.5 mm (3.6 in)
2019	122.4 mm (4.8 in)
2020	264.3 mm (10.4 in)
2021	95.1 mm (3.7 in)
2022	125.4 mm (4.9 in)
2023	103.4 mm (4.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bilje, 1991 to 2023. The record is 90 days in 2017, marked on the chart; the median year is 28 days.

Longest dry spell (CDD) at Bilje by year
Year	Longest dry spell (CDD)
1991	1 day
1992	37 days
1993	32 days
1994	23 days
1995	30 days
1996	41 days
1997	22 days
1998	40 days
1999	18 days
2000	16 days
2001	25 days
2002	32 days
2003	36 days
2004	24 days
2005	24 days
2006	30 days
2007	28 days
2008	22 days
2009	20 days
2010	17 days
2011	35 days
2012	46 days
2013	20 days
2014	20 days
2015	29 days
2016	35 days
2017	90 days
2018	18 days
2019	21 days
2020	52 days
2021	22 days
2022	40 days
2023	45 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

29 years with a frost

Across 29 years with a frost, the median last spring frost at Bilje falls on 29 March and the median first autumn frost on 9 November, which leaves a median of 225 days between them.

Fitted over all years, the growing season changes by +5.9 days per decade at this station.

Frost dates and growing season at Bilje
Measure	Median, all years	Earliest period	Recent period (1992 to 2022)	Recent against earliest	Fitted trend
Last spring frost	29 March	n/a	29 March	n/a	-0.7 days per decade
First autumn frost	9 November	n/a	9 November	n/a	+5.2 days per decade
Growing days	225 days	n/a	225 days	n/a	+5.9 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

30 years, 1992 to 2022

A day with at least 82.8 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 234.0 mm (9.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Bilje: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	82.8 mm (3.3 in)
5 years	115.3 mm (4.5 in)
10 years	139.7 mm (5.5 in)
25 years	174.2 mm (6.9 in)
50 years	202.8 mm (8.0 in)	Longer than the 30 years of record
100 years	234.0 mm (9.2 in)	Longer than the 30 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 30 years of values from 1992 to 2022.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 201.5 mm (7.9 in) in 1997; 169.1 mm (6.7 in) in 1998; 140.5 mm (5.5 in) in 2000.

Download the Data

Data for Bilje standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bilje threshold days by year: CSV or JSON. Field meanings are on the data page.

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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).