Built 2026-10-19 (19 October 2026)

Sontra Weather Records (GME00128962)

Record envelope, standing records and threshold days for Sontra (GME00128962), Germany, with 66 years of record.

Key Facts for Sontra

  • Sontra (GME00128962) is a weather station in Germany at 51.06 latitude and 9.93 longitude, 365 m (1,198 ft) above sea level.
  • The station reports from 1961 to 2026, 66 years of record.
  • 1,464 records set at Sontra still stand.
  • Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
  • Sontra set a daily record high minimum temperature of 16.5 C (61.7 F) on 28 August 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Germany, 51.06 latitude, 9.93 longitude.
  • Elevation: 365 m (1,198 ft).
  • Period of record: 1961 to 2026, 66 years.
  • Eligible elements: tmax, tmin, prcp, snwd.

Daily Record Envelope and 2026

17 days at or beyond a record
Daily record high and record low at Sontra, with 2026 drawn through them The band shows the record high and record low for each calendar day at Sontra. The lines show the 2026 daily maximum and minimum. 17 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Sontra. The lines show the 2026 daily maximum and minimum. 17 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Sontra, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan14.3 C (57.7 F)-25.0 C (-13.0 F)9.8 C (49.6 F)-13.3 C (8.1 F)
Feb18.6 C (65.5 F)-25.6 C (-14.1 F)18.2 C (64.8 F)-7.0 C (19.4 F)
Mar24.1 C (75.4 F)-20.6 C (-5.1 F)18.4 C (65.1 F)-4.8 C (23.4 F)
Apr29.4 C (84.9 F)-10.0 C (14.0 F)21.5 C (70.7 F)-5.1 C (22.8 F)
May32.2 C (90.0 F)-3.6 C (25.5 F)29.6 C (85.3 F)-0.3 C (31.5 F)
Jun37.9 C (100.2 F)-1.6 C (29.1 F)37.9 C (100.2 F)4.6 C (40.3 F)
Jul37.7 C (99.9 F)1.5 C (34.7 F)37.7 C (99.9 F)4.8 C (40.6 F)
Aug37.1 C (98.8 F)1.0 C (33.8 F)35.2 C (95.4 F)4.3 C (39.7 F)
Sep32.0 C (89.6 F)-2.1 C (28.2 F)n/an/a
Oct26.4 C (79.5 F)-9.0 C (15.8 F)n/an/a
Nov19.9 C (67.8 F)-18.0 C (-0.4 F)n/an/a
Dec16.2 C (61.2 F)-23.6 C (-10.5 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Sontra by the year they were set 1,464 records at Sontra still stand. 1962 holds the most, with 41. 02040601961: 281962: 411963: 391964: 221965: 241966: 181967: 131968: 201969: 381970: 131971: 311972: 161973: 211974: 241975: 61976: 211977: 171978: 261979: 221980: 291981: 241982: 101983: 181984: 161985: 371986: 301987: 341988: 141989: 321990: 231991: 111994: 31996: 111997: 261998: 111999: 142000: 272001: 172002: 252003: 372004: 182005: 242006: 252007: 252008: 152009: 152010: 382011: 162012: 292013: 312014: 202015: 392016: 142017: 142018: 402019: 252020: 252021: 282022: 232023: 302024: 342025: 212026: 26196119681975198219891999200620132020
1,464 records at Sontra still stand. 1962 holds the most, with 41.
Standing records at Sontra by the year they were set
Year setStanding records
196128
196241
196339
196422
196524
196618
196713
196820
196938
197013
197131
197216
197321
197424
19756
197621
197717
197826
197922
198029
198124
198210
198318
198416
198537
198630
198734
198814
198932
199023
199111
19943
199611
199726
199811
199914
200027
200117
200225
200337
200418
200524
200625
200725
200815
200915
201038
201116
201229
201331
201420
201539
201614
201714
201840
201925
202025
202128
202223
202330
202434
202521
202626

All-Time Record Progression

10 new records
When Sontra set new all-time records 10 all-time records were set at Sontra between 17 May 1997 and 27 June 2026. Each dot is a new record. Record daily precipitationRecord high maximum temperatureRecord high minimum temperatureRecord low minimum temperature17 May 1997: Record daily precipitation 81.7 mm (3.2 in)20 July 2003: Record high maximum temperature 34.3 C (93.7 F)7 August 2003: Record high maximum temperature 35.0 C (95.0 F)8 August 2003: Record high maximum temperature 35.5 C (95.9 F)9 August 2003: Record high maximum temperature 37.1 C (98.8 F)14 August 2015: Record high minimum temperature 19.3 C (66.7 F)1 August 2018: Record high minimum temperature 20.6 C (69.1 F)10 February 2021: Record low minimum temperature -25.6 C (-14.1 F)20 July 2022: Record high maximum temperature 37.7 C (99.9 F)27 June 2026: Record high maximum temperature 37.9 C (100.2 F)200020052010201520202025
10 all-time records were set at Sontra between 17 May 1997 and 27 June 2026. Each dot is a new record.
When Sontra set new all-time records
DateKindDetail
1997-05-17Record daily precipitationRecord daily precipitation 81.7 mm (3.2 in)
2003-07-20Record high maximum temperatureRecord high maximum temperature 34.3 C (93.7 F)
2003-08-07Record high maximum temperatureRecord high maximum temperature 35.0 C (95.0 F)
2003-08-08Record high maximum temperatureRecord high maximum temperature 35.5 C (95.9 F)
2003-08-09Record high maximum temperatureRecord high maximum temperature 37.1 C (98.8 F)
2015-08-14Record high minimum temperatureRecord high minimum temperature 19.3 C (66.7 F)
2018-08-01Record high minimum temperatureRecord high minimum temperature 20.6 C (69.1 F)
2021-02-10Record low minimum temperatureRecord low minimum temperature -25.6 C (-14.1 F)
2022-07-20Record high maximum temperatureRecord high maximum temperature 37.7 C (99.9 F)
2026-06-27Record high maximum temperatureRecord high maximum temperature 37.9 C (100.2 F)

Wettest Day of Each Month

May: 81.7 mm (3.2 in)
Record daily precipitation for each month at Sontra The wettest day on record for each calendar month at Sontra. The most was 81.7 mm (3.2 in) on 17 May 1997. 0255075100 Jan: 36.4 mm (1.4 in), 1 January 1987 Jan Feb: 29.6 mm (1.2 in), 6 February 1984 Feb Mar: 28.3 mm (1.1 in), 23 March 1987 Mar Apr: 53.2 mm (2.1 in), 15 April 1961 Apr May: 81.7 mm (3.2 in), 17 May 1997 May Jun: 68.3 mm (2.7 in), 3 June 1981 Jun Jul: 59.2 mm (2.3 in), 6 July 1973 Jul Aug: 76.0 mm (3.0 in), 2 August 1968 Aug Sep: 41.4 mm (1.6 in), 28 September 2007 Sep Oct: 51.6 mm (2.0 in), 23 October 1966 Oct Nov: 65.2 mm (2.6 in), 18 November 1971 Nov Dec: 28.8 mm (1.1 in), 19 December 1988 Dec
The wettest day on record for each calendar month at Sontra. The most was 81.7 mm (3.2 in) on 17 May 1997.
Record daily precipitation for each month at Sontra
MonthRecord daily precipitation (mm)Date
Jan36.4 mm (1.4 in)1 January 1987
Feb29.6 mm (1.2 in)6 February 1984
Mar28.3 mm (1.1 in)23 March 1987
Apr53.2 mm (2.1 in)15 April 1961
May81.7 mm (3.2 in)17 May 1997
Jun68.3 mm (2.7 in)3 June 1981
Jul59.2 mm (2.3 in)6 July 1973
Aug76.0 mm (3.0 in)2 August 1968
Sep41.4 mm (1.6 in)28 September 2007
Oct51.6 mm (2.0 in)23 October 1966
Nov65.2 mm (2.6 in)18 November 1971
Dec28.8 mm (1.1 in)19 December 1988

Period of Record Coverage

1961 to 2026
Days with data per year at Sontra 64 years of record at Sontra, 1961 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1991, 1993, 1994, 1996, 1998, 2026. 1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 335 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 151 of 365 days1993: 31 of 365 days1994: 122 of 365 days1996: 184 of 366 days1997: 365 of 365 days1998: 181 of 365 days1999: 334 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 358 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 336 of 366 days2025: 365 of 365 days2026: 243 of 365 days197019801990200020102020
64 years of record at Sontra, 1961 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1991, 1993, 1994, 1996, 1998, 2026.
Days with data per year at Sontra
YearDays with dataShare of yearComplete
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
198833592%Yes
1989365100%Yes
1990365100%Yes
199115141%No
1993318%No
199412233%No
199618450%No
1997365100%Yes
199818150%No
199933492%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
200935898%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
202433692%Yes
2025365100%Yes
202624367%No

Latest Records

20
Latest records at Sontra
DateStationRecordValueBeat old record byOld record stoodSignificance
28 August 2026Sontra, DEdaily high min (Provisional)16.5 C (61.7 F)1.0 C (1.8 F)37 years20 of 100 (Routine)
19 August 2026Sontra, DEdaily rain (Provisional)25.3 mm (1.0 in)5.0 mm (0.20 in)40 years24 of 100 (Routine)
16 August 2026Sontra, DEdaily high min17.8 C (64.0 F)0.3 C (0.5 F)59 years23 of 100 (Routine)
15 August 2026Sontra, DEdaily high max34.8 C (94.6 F)2.4 C (4.3 F)24 years18 of 100 (Routine)
14 August 2026Sontra, DEdaily high max35.2 C (95.4 F)1.0 C (1.8 F)0 years8 of 100 (Routine)
5 August 2026Sontra, DEdaily high min17.9 C (64.2 F)2.0 C (3.6 F)15 years16 of 100 (Routine)
5 August 2026Sontra, DEdaily high max32.3 C (90.1 F)0.3 C (0.5 F)23 years12 of 100 (Routine)
4 August 2026Sontra, DEdaily high min18.4 C (65.1 F)2.2 C (4.0 F)15 years17 of 100 (Routine)
30 July 2026Sontra, DEmonthly high max (Tie)37.7 C (99.9 F)tie4 years4 of 100 (Routine)
29 July 2026Sontra, DEdaily high max34.5 C (94.1 F)0.5 C (0.9 F)56 years24 of 100 (Routine)
14 July 2026Sontra, DEdaily high min16.6 C (61.9 F)1.4 C (2.5 F)24 years17 of 100 (Routine)
13 July 2026Sontra, DEdaily high max30.4 C (86.7 F)0.6 C (1.1 F)4 years8 of 100 (Routine)
28 June 2026Sontra, DEdaily high max35.2 C (95.4 F)5.0 C (9.0 F)49 years30 of 100 (Routine)
28 June 2026Sontra, DEdaily high min18.4 C (65.1 F)1.7 C (3.1 F)32 years20 of 100 (Routine)
27 June 2026Sontra, DEall-time high max37.9 C (100.2 F)0.2 C (0.4 F)3 years27 of 100 (Routine)
27 June 2026Sontra, DEdaily high min18.2 C (64.8 F)1.4 C (2.5 F)16 years15 of 100 (Routine)
26 June 2026Sontra, DEmonthly high max35.1 C (95.2 F)0.3 C (0.5 F)6 years18 of 100 (Routine)
26 June 2026Sontra, DEdaily high min17.3 C (63.1 F)1.2 C (2.2 F)7 years11 of 100 (Routine)
25 June 2026Sontra, DEdaily high min16.7 C (62.1 F)1.7 C (3.1 F)56 years27 of 100 (Routine)
25 June 2026Sontra, DEdaily high max33.4 C (92.1 F)0.7 C (1.3 F)7 years9 of 100 (Routine)

Climate Trend

55 complete years, 1961 to 2025
Annual mean temperature at Sontra as warming stripes, 1961 to 2025 One stripe for each of 55 complete years at Sontra, 1961 to 2025. Blue stripes are years cooler than the station's own mean of 8.3 C (46.9 F); red stripes are warmer. The coolest year was 1963, at 6.2 C (43.2 F), and the warmest was 2023, at 10.1 C (50.2 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1961: 8.4 C, +0.1 C from the station mean1962: 6.3 C, -2.0 C from the station mean1963: 6.2 C, -2.0 C from the station mean1964: 7.4 C, -0.9 C from the station mean1965: 6.9 C, -1.4 C from the station mean1966: 7.9 C, -0.4 C from the station mean1967: 8.3 C, 0.0 C from the station mean1968: 7.4 C, -0.9 C from the station mean1969: 7.1 C, -1.2 C from the station mean1970: 7.2 C, -1.0 C from the station mean1971: 7.8 C, -0.5 C from the station mean1972: 7.2 C, -1.1 C from the station mean1973: 7.5 C, -0.8 C from the station mean1974: 8.2 C, 0.0 C from the station mean1975: 8.4 C, +0.2 C from the station mean1976: 7.6 C, -0.6 C from the station mean1977: 8.1 C, -0.1 C from the station mean1978: 7.2 C, -1.1 C from the station mean1979: 7.0 C, -1.3 C from the station mean1980: 7.0 C, -1.3 C from the station mean1981: 7.5 C, -0.8 C from the station mean1982: 8.4 C, +0.1 C from the station mean1983: 8.4 C, +0.1 C from the station mean1984: 7.6 C, -0.7 C from the station mean1985: 6.9 C, -1.4 C from the station mean1986: 7.4 C, -0.9 C from the station mean1987: 6.6 C, -1.6 C from the station mean1989: 8.5 C, +0.2 C from the station mean1990: 8.6 C, +0.3 C from the station mean1997: 8.6 C, +0.3 C from the station mean2000: 9.6 C, +1.4 C from the station mean2001: 8.7 C, +0.5 C from the station mean2002: 9.2 C, +0.9 C from the station mean2003: 9.0 C, +0.7 C from the station mean2004: 8.5 C, +0.2 C from the station mean2005: 8.6 C, +0.4 C from the station mean2006: 8.9 C, +0.6 C from the station mean2007: 9.3 C, +1.1 C from the station mean2008: 9.1 C, +0.8 C from the station mean2009: 8.6 C, +0.3 C from the station mean2010: 7.2 C, -1.0 C from the station mean2011: 9.1 C, +0.8 C from the station mean2012: 8.5 C, +0.2 C from the station mean2013: 8.2 C, 0.0 C from the station mean2014: 9.9 C, +1.6 C from the station mean2015: 9.4 C, +1.1 C from the station mean2016: 9.0 C, +0.8 C from the station mean2017: 9.1 C, +0.9 C from the station mean2018: 9.9 C, +1.6 C from the station mean2019: 9.7 C, +1.4 C from the station mean2020: 9.6 C, +1.4 C from the station mean2021: 8.6 C, +0.3 C from the station mean2022: 9.8 C, +1.6 C from the station mean2023: 10.1 C, +1.9 C from the station mean2025: 9.2 C, +1.0 C from the station mean1961197019801990200020102020
One stripe for each of 55 complete years at Sontra, 1961 to 2025. Blue stripes are years cooler than the station's own mean of 8.3 C (46.9 F); red stripes are warmer. The coolest year was 1963, at 6.2 C (43.2 F), and the warmest was 2023, at 10.1 C (50.2 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Sontra as warming stripes, 1961 to 2025
YearAnnual mean temperatureDifference from the station mean
19618.4 C+0.10 C
19626.3 C-1.97 C
19636.2 C-2.02 C
19647.4 C-0.87 C
19656.9 C-1.41 C
19667.9 C-0.37 C
19678.3 C+0.02 C
19687.4 C-0.86 C
19697.1 C-1.16 C
19707.2 C-1.02 C
19717.8 C-0.49 C
19727.2 C-1.10 C
19737.5 C-0.81 C
19748.2 C-0.03 C
19758.4 C+0.17 C
19767.6 C-0.63 C
19778.1 C-0.14 C
19787.2 C-1.07 C
19797.0 C-1.30 C
19807.0 C-1.27 C
19817.5 C-0.81 C
19828.4 C+0.13 C
19838.4 C+0.12 C
19847.6 C-0.68 C
19856.9 C-1.41 C
19867.4 C-0.87 C
19876.6 C-1.63 C
19898.5 C+0.19 C
19908.6 C+0.34 C
19978.6 C+0.29 C
20009.6 C+1.35 C
20018.7 C+0.48 C
20029.2 C+0.89 C
20039.0 C+0.72 C
20048.5 C+0.22 C
20058.6 C+0.36 C
20068.9 C+0.64 C
20079.3 C+1.07 C
20089.1 C+0.81 C
20098.6 C+0.31 C
20107.2 C-1.03 C
20119.1 C+0.84 C
20128.5 C+0.21 C
20138.2 C-0.05 C
20149.9 C+1.64 C
20159.4 C+1.14 C
20169.0 C+0.78 C
20179.1 C+0.88 C
20189.9 C+1.61 C
20199.7 C+1.39 C
20209.6 C+1.37 C
20218.6 C+0.32 C
20229.8 C+1.57 C
202310.1 C+1.87 C
20259.2 C+0.96 C

The annual mean temperature here has risen by 0.4 C (0.3 to 0.5) per decade over 1961 to 2025. In Fahrenheit: 0.7 F (0.5 to 0.9) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Sontra
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.4 C (0.3 to 0.5) per decade0.7 F (0.5 to 0.9) per decade1961 to 202555Rise
Mean daily maximum0.5 C (0.4 to 0.6) per decade0.9 F (0.7 to 1.1) per decade1961 to 202555Rise
Mean daily minimum0.3 C (0.2 to 0.4) per decade0.5 F (0.3 to 0.7) per decade1961 to 202555Rise

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

1961 to 2026
Yearly extremes at Sontra: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.9 C (100.2 F)202632.5 C (90.4 F)64
Coldest night (TNn)-25.6 C (-14.1 F)2021-16.1 C (2.9 F)64
Wettest day (Rx1day)81.7 mm (3.2 in)199735.0 mm (1.4 in)64
Wettest five days (Rx5day)99.7 mm (3.9 in)201453.9 mm (2.1 in)64
Longest dry spell (CDD)44 days201118 days64

Hottest day (TXx)

Hottest day (TXx) at Sontra by year The hottest day of the year at Sontra, 1961 to 2026. The record is 37.9 C (100.2 F) in 2026, marked on the chart; the median year is 32.5 C (90.4 F). 010203040198020002020Record: 37.9 C (100.2 F) in 2026
The hottest day of the year at Sontra, 1961 to 2026. The record is 37.9 C (100.2 F) in 2026, marked on the chart; the median year is 32.5 C (90.4 F).
Hottest day (TXx) at Sontra by year
YearHottest day (TXx)
196130.5 C (86.9 F)
196228.4 C (83.1 F)
196332.0 C (89.6 F)
196433.1 C (91.6 F)
196527.0 C (80.6 F)
196632.4 C (90.3 F)
196731.0 C (87.8 F)
196828.5 C (83.3 F)
196934.0 C (93.2 F)
197029.4 C (84.9 F)
197133.5 C (92.3 F)
197231.0 C (87.8 F)
197332.0 C (89.6 F)
197433.0 C (91.4 F)
197531.4 C (88.5 F)
197633.6 C (92.5 F)
197728.6 C (83.5 F)
197829.7 C (85.5 F)
197929.1 C (84.4 F)
198029.1 C (84.4 F)
198129.1 C (84.4 F)
198231.9 C (89.4 F)
198332.1 C (89.8 F)
198433.0 C (91.4 F)
198531.0 C (87.8 F)
198632.8 C (91.0 F)
198730.6 C (87.1 F)
198828.5 C (83.3 F)
198933.0 C (91.4 F)
199033.2 C (91.8 F)
199122.6 C (72.7 F)
19939.0 C (48.2 F)
199430.8 C (87.4 F)
199628.0 C (82.4 F)
199730.1 C (86.2 F)
199829.6 C (85.3 F)
199931.0 C (87.8 F)
200033.0 C (91.4 F)
200132.5 C (90.5 F)
200232.7 C (90.9 F)
200337.1 C (98.8 F)
200430.2 C (86.4 F)
200532.2 C (90.0 F)
200634.3 C (93.7 F)
200733.5 C (92.3 F)
200832.6 C (90.7 F)
200933.3 C (91.9 F)
201034.9 C (94.8 F)
201132.1 C (89.8 F)
201233.4 C (92.1 F)
201333.7 C (92.7 F)
201432.2 C (90.0 F)
201537.1 C (98.8 F)
201633.2 C (91.8 F)
201732.8 C (91.0 F)
201835.8 C (96.4 F)
201935.7 C (96.3 F)
202035.4 C (95.7 F)
202133.0 C (91.4 F)
202237.7 C (99.9 F)
202334.3 C (93.7 F)
202433.3 C (91.9 F)
202536.1 C (97.0 F)
202637.9 C (100.2 F)

Coldest night (TNn)

Coldest night (TNn) at Sontra by year The coldest night of the year at Sontra, 1961 to 2026. The record is -25.6 C (-14.1 F) in 2021, marked on the chart; the median year is -16.1 C (2.9 F). -30-25-20-15-10-5198020002020Record: -25.6 C (-14.1 F) in 2021
The coldest night of the year at Sontra, 1961 to 2026. The record is -25.6 C (-14.1 F) in 2021, marked on the chart; the median year is -16.1 C (2.9 F).
Coldest night (TNn) at Sontra by year
YearColdest night (TNn)
1961-18.7 C (-1.7 F)
1962-19.2 C (-2.6 F)
1963-25.0 C (-13.0 F)
1964-16.0 C (3.2 F)
1965-18.0 C (-0.4 F)
1966-22.5 C (-8.5 F)
1967-14.2 C (6.4 F)
1968-23.4 C (-10.1 F)
1969-23.6 C (-10.5 F)
1970-19.0 C (-2.2 F)
1971-22.4 C (-8.3 F)
1972-19.5 C (-3.1 F)
1973-20.7 C (-5.3 F)
1974-10.5 C (13.1 F)
1975-13.0 C (8.6 F)
1976-22.5 C (-8.5 F)
1977-10.4 C (13.3 F)
1978-19.5 C (-3.1 F)
1979-24.0 C (-11.2 F)
1980-19.3 C (-2.7 F)
1981-15.7 C (3.7 F)
1982-23.4 C (-10.1 F)
1983-16.7 C (1.9 F)
1984-12.1 C (10.2 F)
1985-19.6 C (-3.3 F)
1986-23.8 C (-10.8 F)
1987-24.8 C (-12.6 F)
1988-14.5 C (5.9 F)
1989-10.8 C (12.6 F)
1990-10.0 C (14.0 F)
1991-16.1 C (3.0 F)
1993-9.0 C (15.8 F)
1994-8.5 C (16.7 F)
1996-18.0 C (-0.4 F)
1997-22.2 C (-8.0 F)
1998-16.2 C (2.8 F)
1999-17.2 C (1.0 F)
2000-14.6 C (5.7 F)
2001-14.7 C (5.5 F)
2002-19.6 C (-3.3 F)
2003-17.5 C (0.5 F)
2004-12.7 C (9.1 F)
2005-20.6 C (-5.1 F)
2006-14.3 C (6.3 F)
2007-13.0 C (8.6 F)
2008-11.7 C (10.9 F)
2009-22.1 C (-7.8 F)
2010-19.1 C (-2.4 F)
2011-14.0 C (6.8 F)
2012-20.2 C (-4.4 F)
2013-16.1 C (3.0 F)
2014-7.8 C (18.0 F)
2015-9.8 C (14.4 F)
2016-17.6 C (0.3 F)
2017-15.5 C (4.1 F)
2018-11.9 C (10.6 F)
2019-12.6 C (9.3 F)
2020-8.1 C (17.4 F)
2021-25.6 C (-14.1 F)
2022-15.5 C (4.1 F)
2023-9.7 C (14.5 F)
2024-14.1 C (6.6 F)
2025-11.1 C (12.0 F)
2026-13.3 C (8.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Sontra by year The wettest day of the year at Sontra, 1961 to 2026. The record is 81.7 mm (3.2 in) in 1997, marked on the chart; the median year is 35.0 mm (1.4 in). 020406080100198020002020Record: 81.7 mm (3.2 in) in 1997
The wettest day of the year at Sontra, 1961 to 2026. The record is 81.7 mm (3.2 in) in 1997, marked on the chart; the median year is 35.0 mm (1.4 in).
Wettest day (Rx1day) at Sontra by year
YearWettest day (Rx1day)
196153.2 mm (2.1 in)
196225.2 mm (1.0 in)
196363.9 mm (2.5 in)
196433.3 mm (1.3 in)
196539.9 mm (1.6 in)
196651.6 mm (2.0 in)
196730.3 mm (1.2 in)
196876.0 mm (3.0 in)
196923.2 mm (0.9 in)
197042.4 mm (1.7 in)
197165.2 mm (2.6 in)
197232.1 mm (1.3 in)
197359.2 mm (2.3 in)
197424.4 mm (1.0 in)
197518.3 mm (0.7 in)
197636.7 mm (1.4 in)
197728.7 mm (1.1 in)
197825.9 mm (1.0 in)
197924.8 mm (1.0 in)
198030.6 mm (1.2 in)
198168.3 mm (2.7 in)
198232.2 mm (1.3 in)
198346.3 mm (1.8 in)
198448.2 mm (1.9 in)
198537.8 mm (1.5 in)
198636.8 mm (1.4 in)
198736.4 mm (1.4 in)
198834.0 mm (1.3 in)
198921.1 mm (0.8 in)
199038.7 mm (1.5 in)
199119.6 mm (0.8 in)
199315.2 mm (0.6 in)
199418.7 mm (0.7 in)
199625.1 mm (1.0 in)
199781.7 mm (3.2 in)
199830.6 mm (1.2 in)
199929.1 mm (1.1 in)
200034.5 mm (1.4 in)
200121.2 mm (0.8 in)
200249.0 mm (1.9 in)
200322.6 mm (0.9 in)
200429.3 mm (1.2 in)
200535.5 mm (1.4 in)
200642.7 mm (1.7 in)
200751.7 mm (2.0 in)
200815.8 mm (0.6 in)
200925.0 mm (1.0 in)
201035.4 mm (1.4 in)
201132.0 mm (1.3 in)
201247.3 mm (1.9 in)
201338.4 mm (1.5 in)
201447.1 mm (1.9 in)
201548.2 mm (1.9 in)
201631.7 mm (1.2 in)
201754.5 mm (2.1 in)
201828.0 mm (1.1 in)
201943.9 mm (1.7 in)
202032.3 mm (1.3 in)
202132.9 mm (1.3 in)
202223.8 mm (0.9 in)
202341.9 mm (1.6 in)
202444.3 mm (1.7 in)
202536.2 mm (1.4 in)
202645.9 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Sontra by year The wettest five days of the year at Sontra, 1961 to 2026. The record is 99.7 mm (3.9 in) in 2014, marked on the chart; the median year is 53.9 mm (2.1 in). 20406080100198020002020Record: 99.7 mm (3.9 in) in 2014
The wettest five days of the year at Sontra, 1961 to 2026. The record is 99.7 mm (3.9 in) in 2014, marked on the chart; the median year is 53.9 mm (2.1 in).
Wettest five days (Rx5day) at Sontra by year
YearWettest five days (Rx5day)
196168.6 mm (2.7 in)
196256.5 mm (2.2 in)
196392.3 mm (3.6 in)
196445.9 mm (1.8 in)
196559.9 mm (2.4 in)
196688.0 mm (3.5 in)
196747.9 mm (1.9 in)
196879.4 mm (3.1 in)
196944.9 mm (1.8 in)
197065.1 mm (2.6 in)
197174.9 mm (2.9 in)
197278.7 mm (3.1 in)
197374.9 mm (2.9 in)
197471.2 mm (2.8 in)
197546.3 mm (1.8 in)
197652.7 mm (2.1 in)
197752.3 mm (2.1 in)
197859.3 mm (2.3 in)
197964.1 mm (2.5 in)
198049.2 mm (1.9 in)
198192.4 mm (3.6 in)
198245.8 mm (1.8 in)
198367.0 mm (2.6 in)
198490.0 mm (3.5 in)
198547.0 mm (1.9 in)
198685.1 mm (3.4 in)
198787.5 mm (3.4 in)
198854.9 mm (2.2 in)
198945.4 mm (1.8 in)
199054.2 mm (2.1 in)
199134.4 mm (1.4 in)
199338.2 mm (1.5 in)
199440.2 mm (1.6 in)
199643.1 mm (1.7 in)
199793.7 mm (3.7 in)
199842.8 mm (1.7 in)
199946.9 mm (1.8 in)
200058.8 mm (2.3 in)
200148.6 mm (1.9 in)
200287.3 mm (3.4 in)
200363.4 mm (2.5 in)
200458.9 mm (2.3 in)
200542.9 mm (1.7 in)
200645.1 mm (1.8 in)
200788.8 mm (3.5 in)
200832.7 mm (1.3 in)
200940.9 mm (1.6 in)
201049.7 mm (2.0 in)
201143.3 mm (1.7 in)
201280.9 mm (3.2 in)
201356.3 mm (2.2 in)
201499.7 mm (3.9 in)
201553.5 mm (2.1 in)
201650.1 mm (2.0 in)
201795.8 mm (3.8 in)
201837.4 mm (1.5 in)
201949.5 mm (1.9 in)
202047.8 mm (1.9 in)
202146.9 mm (1.8 in)
202236.2 mm (1.4 in)
202363.2 mm (2.5 in)
202474.6 mm (2.9 in)
202545.1 mm (1.8 in)
202646.6 mm (1.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Sontra by year The longest dry spell of the year at Sontra, 1961 to 2026. The record is 44 days in 2011, marked on the chart; the median year is 18 days. 01020304050198020002020Record: 44 days in 2011
The longest dry spell of the year at Sontra, 1961 to 2026. The record is 44 days in 2011, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Sontra by year
YearLongest dry spell (CDD)
196115 days
196225 days
196320 days
196416 days
196513 days
196623 days
196710 days
196823 days
196919 days
197014 days
197127 days
197225 days
197313 days
197416 days
197521 days
197633 days
197717 days
197828 days
197912 days
198018 days
198113 days
198220 days
198326 days
198421 days
198519 days
198631 days
198714 days
198818 days
198920 days
199036 days
199118 days
19934 days
199411 days
199611 days
199718 days
199814 days
199915 days
200017 days
200117 days
200221 days
200330 days
200418 days
200518 days
200627 days
200719 days
200813 days
200918 days
201017 days
201144 days
201220 days
201319 days
201416 days
201525 days
201614 days
201725 days
201823 days
201929 days
202023 days
202112 days
202218 days
202327 days
202412 days
202521 days
202615 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

55 years with a frost

Across 55 years with a frost, the median last spring frost at Sontra falls on 8 May and the median first autumn frost on 12 October, which leaves a median of 154 days between them.

Fitted over all years, the growing season changes by +1.2 days per decade at this station.

Frost dates and growing season at Sontra
MeasureMedian, all yearsEarliest periodRecent period (1986 to 2025)Recent against earliestFitted trend
Last spring frost8 Mayn/a6 Mayn/a-0.9 days per decade
First autumn frost12 Octobern/a12 Octobern/a+0.3 days per decade
Growing days154 daysn/a154 daysn/a+1.2 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

58 years, 1961 to 2025

A day with at least 36.0 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 86.2 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Sontra: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years36.0 mm (1.4 in)
5 years48.6 mm (1.9 in)
10 years57.3 mm (2.3 in)
25 years68.7 mm (2.7 in)
50 years77.3 mm (3.0 in)
100 years86.2 mm (3.4 in)Longer than the 58 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, 58 years of values from 1961 to 2025.

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: 81.7 mm (3.2 in) in 1997; 76.0 mm (3.0 in) in 1968; 68.3 mm (2.7 in) in 1981.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Sontra, at 1997. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1997 ran 0.1 C (0.2 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Sontra, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1997+0.1+0.2possible5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, Sontra had a mean temperature of 9.2 C (48.5 F) and 641.7 mm (25.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Mayen (Germany, 207 km away), Nienburg (Germany, 186 km away) and Rahden-Varl (Germany, 180 km away).

Climate twins of Sontra: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
MayenGermany207 km (129 mi)9.1 C (48.4 F)600.2 mm (23.6 in)0.46
NienburgGermany186 km (116 mi)9.1 C (48.4 F)703.6 mm (27.7 in)0.48
Rahden-VarlGermany180 km (112 mi)9.1 C (48.3 F)692.0 mm (27.2 in)0.50

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Sontra standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Sontra 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 . Last revised (2026-10-17).