Built 2026-10-16 (16 October 2026)

Bern Weather Records (USC00100803)

Record envelope, standing records and threshold days for Bern (USC00100803), Idaho, United States, with 35 years of record.

Key Facts for Bern

  • Bern (USC00100803) is a weather station in Idaho, United States at 42.34 latitude and -111.39 longitude, 1,818 m (5,964 ft) above sea level.
  • The station reports from 1992 to 2026, 35 years of record.
  • 1,464 records set at Bern still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Bern set a daily record high minimum temperature of 5.0 C (41.0 F) on 12 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Idaho, United States, 42.34 latitude, -111.39 longitude.
  • Elevation: 1,818 m (5,964 ft).
  • Period of record: 1992 to 2026, 35 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

46 days at or beyond a record
Daily record high and record low at Bern, with 2026 drawn through them The band shows the record high and record low for each calendar day at Bern. The lines show the 2026 daily maximum and minimum. 46 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 Bern. The lines show the 2026 daily maximum and minimum. 46 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Bern, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan9.4 C (48.9 F)-34.4 C (-29.9 F)6.1 C (43.0 F)-20.0 C (-4.0 F)
Feb12.8 C (55.0 F)-34.4 C (-29.9 F)11.7 C (53.1 F)-15.0 C (5.0 F)
Mar24.4 C (75.9 F)-29.4 C (-20.9 F)24.4 C (75.9 F)-8.9 C (16.0 F)
Apr27.8 C (82.0 F)-20.0 C (-4.0 F)23.9 C (75.0 F)-10.0 C (14.0 F)
May31.7 C (89.1 F)-9.4 C (15.1 F)30.6 C (87.1 F)-4.4 C (24.1 F)
Jun36.1 C (97.0 F)-5.6 C (21.9 F)31.7 C (89.1 F)-4.4 C (24.1 F)
Jul38.3 C (100.9 F)-2.2 C (28.0 F)38.3 C (100.9 F)3.9 C (39.0 F)
Aug36.7 C (98.1 F)-5.0 C (23.0 F)36.7 C (98.1 F)1.1 C (34.0 F)
Sep35.6 C (96.1 F)-9.4 C (15.1 F)28.9 C (84.0 F)-2.2 C (28.0 F)
Oct31.1 C (88.0 F)-25.0 C (-13.0 F)27.8 C (82.0 F)0.6 C (33.1 F)
Nov21.1 C (70.0 F)-27.8 C (-18.0 F)n/an/a
Dec15.0 C (59.0 F)-29.4 C (-20.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Bern by the year they were set 1,464 records at Bern still stand. 1993 holds the most, with 65. 0204060801992: 451993: 651994: 371995: 451996: 571997: 411998: 331999: 412000: 342001: 592002: 482003: 622004: 322005: 212006: 382007: 442008: 522009: 352010: 342011: 392012: 412013: 432014: 442015: 602016: 322017: 362018: 272019: 302020: 392021: 382022: 352023: 512024: 192025: 502026: 57199219962000200420082012201620202024
1,464 records at Bern still stand. 1993 holds the most, with 65.
Standing records at Bern by the year they were set
Year setStanding records
199245
199365
199437
199545
199657
199741
199833
199941
200034
200159
200248
200362
200432
200521
200638
200744
200852
200935
201034
201139
201241
201343
201444
201560
201632
201736
201827
201930
202039
202138
202235
202351
202419
202550
202657

All-Time Record Progression

3 new records
When Bern set new all-time records 3 all-time records were set at Bern between 7 March 2023 and 13 July 2026. Each dot is a new record. Record snow depthRecord high maximum temperature7 March 2023: Record snow depth 119.4 cm (47.0 in)9 March 2023: Record snow depth 121.9 cm (48.0 in)13 July 2026: Record high maximum temperature 38.3 C (100.9 F)2025
3 all-time records were set at Bern between 7 March 2023 and 13 July 2026. Each dot is a new record.
When Bern set new all-time records
DateKindDetail
2023-03-07Record snow depthRecord snow depth 119.4 cm (47.0 in)
2023-03-09Record snow depthRecord snow depth 121.9 cm (48.0 in)
2026-07-13Record high maximum temperatureRecord high maximum temperature 38.3 C (100.9 F)

Wettest Day of Each Month

Oct: 47.0 mm (1.9 in)
Record daily precipitation for each month at Bern The wettest day on record for each calendar month at Bern. The most was 47.0 mm (1.9 in) on 17 October 2016. 0204060 Jan: 25.7 mm (1.0 in), 9 January 2005 Jan Feb: 22.4 mm (0.9 in), 8 February 2014 Feb Mar: 19.8 mm (0.8 in), 22 March 1994 Mar Apr: 23.9 mm (0.9 in), 8 April 2017 Apr May: 36.3 mm (1.4 in), 6 May 1993 May Jun: 32.8 mm (1.3 in), 17 June 2020 Jun Jul: 33.3 mm (1.3 in), 12 July 1997 Jul Aug: 31.0 mm (1.2 in), 6 August 2022 Aug Sep: 34.0 mm (1.3 in), 29 September 2019 Sep Oct: 47.0 mm (1.9 in), 17 October 2016 Oct Nov: 33.8 mm (1.3 in), 9 November 2022 Nov Dec: 33.0 mm (1.3 in), 21 December 1996 Dec
The wettest day on record for each calendar month at Bern. The most was 47.0 mm (1.9 in) on 17 October 2016.
Record daily precipitation for each month at Bern
MonthRecord daily precipitation (mm)Date
Jan25.7 mm (1.0 in)9 January 2005
Feb22.4 mm (0.9 in)8 February 2014
Mar19.8 mm (0.8 in)22 March 1994
Apr23.9 mm (0.9 in)8 April 2017
May36.3 mm (1.4 in)6 May 1993
Jun32.8 mm (1.3 in)17 June 2020
Jul33.3 mm (1.3 in)12 July 1997
Aug31.0 mm (1.2 in)6 August 2022
Sep34.0 mm (1.3 in)29 September 2019
Oct47.0 mm (1.9 in)17 October 2016
Nov33.8 mm (1.3 in)9 November 2022
Dec33.0 mm (1.3 in)21 December 1996

Period of Record Coverage

1992 to 2026
Days with data per year at Bern 35 years of record at Bern, 1992 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1992, 2026. 1992: 305 of 366 days1993: 364 of 365 days1994: 362 of 365 days1995: 359 of 365 days1996: 363 of 366 days1997: 363 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 359 of 365 days2006: 356 of 365 days2007: 361 of 365 days2008: 366 of 366 days2009: 334 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: 366 of 366 days2025: 365 of 365 days2026: 284 of 365 days1995200020052010201520202025
35 years of record at Bern, 1992 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1992, 2026.
Days with data per year at Bern
YearDays with dataShare of yearComplete
199230583%No
1993364100%Yes
199436299%Yes
199535998%Yes
199636399%Yes
199736399%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
200535998%Yes
200635698%Yes
200736199%Yes
2008366100%Yes
200933492%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
2024366100%Yes
2025365100%Yes
202628478%No

Latest Records

20
Latest records at Bern
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Bern, USdaily high min (Provisional)5.0 C (41.0 F)0.6 C (1.1 F)32 years13 of 100 (Routine)
9 October 2026Bern, USdaily high max (Provisional)26.7 C (80.1 F)0.6 C (1.1 F)29 years11 of 100 (Routine)
8 October 2026Bern, USdaily high max (Provisional)27.2 C (81.0 F)0.5 C (0.9 F)5 years4 of 100 (Routine)
6 October 2026Bern, USdaily high max (Provisional)27.8 C (82.0 F)2.2 C (4.0 F)23 years12 of 100 (Routine)
5 October 2026Bern, USdaily high max (Tie, Provisional)27.8 C (82.0 F)tie1 year0 of 100 (Routine)
18 September 2026Bern, USdaily rain (Provisional)13.5 mm (0.5 in)2.8 mm (0.11 in)1 year7 of 100 (Routine)
29 August 2026Bern, USdaily high min (Provisional)12.8 C (55.0 F)1.7 C (3.1 F)15 years12 of 100 (Routine)
24 August 2026Bern, USdaily high min (Provisional)11.7 C (53.1 F)0.6 C (1.1 F)28 years12 of 100 (Routine)
22 August 2026Bern, USdaily high min (Provisional)13.3 C (55.9 F)0.5 C (0.9 F)31 years13 of 100 (Routine)
22 August 2026Bern, USdaily high max (Tie, Provisional)35.0 C (95.0 F)tie16 years2 of 100 (Routine)
15 August 2026Bern, USdaily low max22.8 C (73.0 F)0.5 C (0.9 F)27 years12 of 100 (Routine)
14 August 2026Bern, USdaily low max17.8 C (64.0 F)7.2 C (13.0 F)28 years30 of 100 (Routine)
14 August 2026Bern, USdaily rain7.1 mm (0.28 in)3.3 mm (0.13 in)1 year9 of 100 (Routine)
12 August 2026Bern, USdaily rain (Tie)5.6 mm (0.22 in)tie28 years2 of 100 (Routine)
11 August 2026Bern, USdaily high max (Tie)35.0 C (95.0 F)tie8 years1 of 100 (Routine)
10 August 2026Bern, USdaily high max (Tie)34.4 C (93.9 F)tie33 years3 of 100 (Routine)
8 August 2026Bern, USdaily high max36.1 C (97.0 F)0.5 C (0.9 F)13 years8 of 100 (Routine)
5 August 2026Bern, USdaily low min (Tie)3.3 C (37.9 F)tie29 years2 of 100 (Routine)
2 August 2026Bern, USmonthly high max (Tie)36.7 C (98.1 F)tie22 years4 of 100 (Routine)
1 August 2026Bern, USdaily high max (Tie)35.0 C (95.0 F)tie25 years2 of 100 (Routine)

Climate Trend

31 complete years, 1993 to 2025
Annual mean temperature at Bern as warming stripes, 1993 to 2025 One stripe for each of 31 complete years at Bern, 1993 to 2025. Blue stripes are years cooler than the station's own mean of 5.3 C (41.6 F); red stripes are warmer. The coolest year was 1993, at 3.4 C (38.0 F), and the warmest was 2015, at 7.1 C (44.8 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1993: 3.4 C, -2.0 C from the station mean1994: 5.7 C, +0.4 C from the station mean1995: 5.5 C, +0.1 C from the station mean1996: 5.0 C, -0.3 C from the station mean1997: 4.4 C, -0.9 C from the station mean1998: 5.4 C, 0.0 C from the station mean1999: 5.4 C, 0.0 C from the station mean2000: 5.6 C, +0.2 C from the station mean2001: 4.9 C, -0.4 C from the station mean2002: 4.4 C, -0.9 C from the station mean2003: 6.1 C, +0.7 C from the station mean2005: 4.5 C, -0.8 C from the station mean2006: 5.2 C, -0.1 C from the station mean2007: 5.9 C, +0.5 C from the station mean2008: 4.4 C, -0.9 C from the station mean2010: 5.2 C, -0.1 C from the station mean2011: 3.8 C, -1.5 C from the station mean2012: 6.6 C, +1.3 C from the station mean2013: 5.1 C, -0.3 C from the station mean2014: 6.3 C, +1.0 C from the station mean2015: 7.1 C, +1.8 C from the station mean2016: 6.1 C, +0.8 C from the station mean2017: 5.7 C, +0.4 C from the station mean2018: 6.0 C, +0.7 C from the station mean2019: 4.4 C, -0.9 C from the station mean2020: 5.5 C, +0.2 C from the station mean2021: 6.4 C, +1.1 C from the station mean2022: 4.4 C, -1.0 C from the station mean2023: 4.2 C, -1.1 C from the station mean2024: 5.9 C, +0.6 C from the station mean2025: 6.8 C, +1.5 C from the station mean1993200020052010201520202025
One stripe for each of 31 complete years at Bern, 1993 to 2025. Blue stripes are years cooler than the station's own mean of 5.3 C (41.6 F); red stripes are warmer. The coolest year was 1993, at 3.4 C (38.0 F), and the warmest was 2015, at 7.1 C (44.8 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Bern as warming stripes, 1993 to 2025
YearAnnual mean temperatureDifference from the station mean
19933.4 C-1.98 C
19945.7 C+0.40 C
19955.5 C+0.14 C
19965.0 C-0.30 C
19974.4 C-0.95 C
19985.4 C+0.04 C
19995.4 C+0.02 C
20005.6 C+0.22 C
20014.9 C-0.40 C
20024.4 C-0.93 C
20036.1 C+0.73 C
20054.5 C-0.79 C
20065.2 C-0.09 C
20075.9 C+0.54 C
20084.4 C-0.95 C
20105.2 C-0.10 C
20113.8 C-1.52 C
20126.6 C+1.27 C
20135.1 C-0.27 C
20146.3 C+0.97 C
20157.1 C+1.77 C
20166.1 C+0.78 C
20175.7 C+0.37 C
20186.0 C+0.70 C
20194.4 C-0.93 C
20205.5 C+0.15 C
20216.4 C+1.09 C
20224.4 C-0.98 C
20234.2 C-1.15 C
20245.9 C+0.60 C
20256.8 C+1.47 C

The fitted trend in annual mean temperature here over 1993 to 2025 is 0.28 C (-0.05 to 0.61) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.5 F (-0.1 to 1.1) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Bern
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.28 C (-0.05 to 0.61) per decade0.5 F (-0.1 to 1.1) per decade1993 to 202531Not clearly different from zero
Mean daily maximum0.35 C (-0.03 to 0.73) per decade0.64 F (-0.05 to 1.32) per decade1993 to 202531Not clearly different from zero
Mean daily minimum0.2 C (-0.1 to 0.5) per decade0.4 F (-0.2 to 1.0) per decade1993 to 202531Not clearly different from zero

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

1992 to 2026
Yearly extremes at Bern: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)202635.0 C (95.0 F)35
Coldest night (TNn)-34.4 C (-29.9 F)1996-28.3 C (-18.9 F)35
Wettest day (Rx1day)47.0 mm (1.9 in)201624.6 mm (1.0 in)35
Wettest five days (Rx5day)80.0 mm (3.1 in)200542.2 mm (1.7 in)35
Longest dry spell (CDD)57 days200828 days35

Hottest day (TXx)

Hottest day (TXx) at Bern by year The hottest day of the year at Bern, 1992 to 2026. The record is 38.3 C (100.9 F) in 2026, marked on the chart; the median year is 35.0 C (95.0 F). 3032.53537.540200020102020Record: 38.3 C (100.9 F) in 2026
The hottest day of the year at Bern, 1992 to 2026. The record is 38.3 C (100.9 F) in 2026, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Bern by year
YearHottest day (TXx)
199235.0 C (95.0 F)
199330.0 C (86.0 F)
199435.0 C (95.0 F)
199533.3 C (91.9 F)
199633.9 C (93.0 F)
199731.7 C (89.1 F)
199834.4 C (93.9 F)
199932.2 C (90.0 F)
200036.1 C (97.0 F)
200135.6 C (96.1 F)
200237.8 C (100.0 F)
200337.8 C (100.0 F)
200433.9 C (93.0 F)
200535.6 C (96.1 F)
200636.1 C (97.0 F)
200737.2 C (99.0 F)
200834.4 C (93.9 F)
200935.6 C (96.1 F)
201034.4 C (93.9 F)
201135.0 C (95.0 F)
201236.7 C (98.1 F)
201336.1 C (97.0 F)
201435.0 C (95.0 F)
201536.1 C (97.0 F)
201634.4 C (93.9 F)
201735.0 C (95.0 F)
201835.6 C (96.1 F)
201935.6 C (96.1 F)
202035.6 C (96.1 F)
202136.1 C (97.0 F)
202236.1 C (97.0 F)
202335.0 C (95.0 F)
202435.0 C (95.0 F)
202535.0 C (95.0 F)
202638.3 C (100.9 F)

Coldest night (TNn)

Coldest night (TNn) at Bern by year The coldest night of the year at Bern, 1992 to 2026. The record is -34.4 C (-29.9 F) in 1996, marked on the chart; the median year is -28.3 C (-18.9 F). -35-30-25-20200020102020Record: -34.4 C (-29.9 F) in 1996
The coldest night of the year at Bern, 1992 to 2026. The record is -34.4 C (-29.9 F) in 1996, marked on the chart; the median year is -28.3 C (-18.9 F).
Coldest night (TNn) at Bern by year
YearColdest night (TNn)
1992-26.7 C (-16.1 F)
1993-30.0 C (-22.0 F)
1994-26.1 C (-15.0 F)
1995-25.6 C (-14.1 F)
1996-34.4 C (-29.9 F)
1997-28.3 C (-18.9 F)
1998-27.2 C (-17.0 F)
1999-22.8 C (-9.0 F)
2000-22.8 C (-9.0 F)
2001-32.2 C (-26.0 F)
2002-31.1 C (-24.0 F)
2003-23.3 C (-9.9 F)
2004-30.0 C (-22.0 F)
2005-30.0 C (-22.0 F)
2006-28.9 C (-20.0 F)
2007-32.2 C (-26.0 F)
2008-31.1 C (-24.0 F)
2009-28.9 C (-20.0 F)
2010-27.2 C (-17.0 F)
2011-33.3 C (-27.9 F)
2012-24.4 C (-11.9 F)
2013-28.9 C (-20.0 F)
2014-28.9 C (-20.0 F)
2015-28.3 C (-18.9 F)
2016-28.9 C (-20.0 F)
2017-33.9 C (-29.0 F)
2018-25.0 C (-13.0 F)
2019-27.8 C (-18.0 F)
2020-27.2 C (-17.0 F)
2021-23.9 C (-11.0 F)
2022-26.7 C (-16.1 F)
2023-34.4 C (-29.9 F)
2024-28.9 C (-20.0 F)
2025-27.2 C (-17.0 F)
2026-20.0 C (-4.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Bern by year The wettest day of the year at Bern, 1992 to 2026. The record is 47.0 mm (1.9 in) in 2016, marked on the chart; the median year is 24.6 mm (1.0 in). 1020304050200020102020Record: 47.0 mm (1.9 in) in 2016
The wettest day of the year at Bern, 1992 to 2026. The record is 47.0 mm (1.9 in) in 2016, marked on the chart; the median year is 24.6 mm (1.0 in).
Wettest day (Rx1day) at Bern by year
YearWettest day (Rx1day)
199217.5 mm (0.7 in)
199336.3 mm (1.4 in)
199424.1 mm (0.9 in)
199522.4 mm (0.9 in)
199633.0 mm (1.3 in)
199733.3 mm (1.3 in)
199817.5 mm (0.7 in)
199915.7 mm (0.6 in)
200018.5 mm (0.7 in)
200116.5 mm (0.6 in)
200220.6 mm (0.8 in)
200324.9 mm (1.0 in)
200424.6 mm (1.0 in)
200525.7 mm (1.0 in)
200620.8 mm (0.8 in)
200719.3 mm (0.8 in)
200826.4 mm (1.0 in)
200916.5 mm (0.6 in)
201035.8 mm (1.4 in)
201126.7 mm (1.1 in)
201216.8 mm (0.7 in)
201317.3 mm (0.7 in)
201432.5 mm (1.3 in)
201524.6 mm (1.0 in)
201647.0 mm (1.9 in)
201723.9 mm (0.9 in)
201826.2 mm (1.0 in)
201934.0 mm (1.3 in)
202032.8 mm (1.3 in)
202128.7 mm (1.1 in)
202233.8 mm (1.3 in)
202318.8 mm (0.7 in)
202417.3 mm (0.7 in)
202522.1 mm (0.9 in)
202627.9 mm (1.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Bern by year The wettest five days of the year at Bern, 1992 to 2026. The record is 80.0 mm (3.1 in) in 2005, marked on the chart; the median year is 42.2 mm (1.7 in). 20406080200020102020Record: 80.0 mm (3.1 in) in 2005
The wettest five days of the year at Bern, 1992 to 2026. The record is 80.0 mm (3.1 in) in 2005, marked on the chart; the median year is 42.2 mm (1.7 in).
Wettest five days (Rx5day) at Bern by year
YearWettest five days (Rx5day)
199238.8 mm (1.5 in)
199361.2 mm (2.4 in)
199441.3 mm (1.6 in)
199546.5 mm (1.8 in)
199654.9 mm (2.2 in)
199740.4 mm (1.6 in)
199836.3 mm (1.4 in)
199944.2 mm (1.7 in)
200034.6 mm (1.4 in)
200136.1 mm (1.4 in)
200250.3 mm (2.0 in)
200328.0 mm (1.1 in)
200460.7 mm (2.4 in)
200580.0 mm (3.1 in)
200660.5 mm (2.4 in)
200724.3 mm (1.0 in)
200841.7 mm (1.6 in)
200944.2 mm (1.7 in)
201043.7 mm (1.7 in)
201140.7 mm (1.6 in)
201234.6 mm (1.4 in)
201342.2 mm (1.7 in)
201468.0 mm (2.7 in)
201566.8 mm (2.6 in)
201677.5 mm (3.1 in)
201771.6 mm (2.8 in)
201833.8 mm (1.3 in)
201953.6 mm (2.1 in)
202039.7 mm (1.6 in)
202156.1 mm (2.2 in)
202261.0 mm (2.4 in)
202339.4 mm (1.6 in)
202435.5 mm (1.4 in)
202537.1 mm (1.5 in)
202628.9 mm (1.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Bern by year The longest dry spell of the year at Bern, 1992 to 2026. The record is 57 days in 2008, marked on the chart; the median year is 28 days. 102030405060200020102020Record: 57 days in 2008
The longest dry spell of the year at Bern, 1992 to 2026. The record is 57 days in 2008, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Bern by year
YearLongest dry spell (CDD)
199228 days
199318 days
199446 days
199530 days
199628 days
199721 days
199827 days
199933 days
200021 days
200127 days
200241 days
200330 days
200420 days
200524 days
200621 days
200739 days
200857 days
200920 days
201024 days
201125 days
201238 days
201325 days
201422 days
201519 days
201647 days
201719 days
201836 days
201946 days
202033 days
202130 days
202230 days
202325 days
202428 days
202547 days
202631 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

31 years with a frost

Across 31 years with a frost, the median last spring frost at Bern falls on 18 June and the median first autumn frost on 1 September, which leaves a median of 77 days between them.

Fitted over all years, the growing season changes by +13.2 days per decade at this station.

Frost dates and growing season at Bern
MeasureMedian, all yearsEarliest periodRecent period (1994 to 2025)Recent against earliestFitted trend
Last spring frost18 Junen/a18 Junen/a-1.0 days per decade
First autumn frost1 Septembern/a2 Septembern/a+12.3 days per decade
Growing days77 daysn/a78 daysn/a+13.2 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

33 years, 1993 to 2025

A day with at least 24.0 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 49.4 mm (1.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Bern: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years24.0 mm (0.9 in)
5 years30.9 mm (1.2 in)
10 years35.4 mm (1.4 in)
25 years41.1 mm (1.6 in)
50 years45.3 mm (1.8 in)Longer than the 33 years of record
100 years49.4 mm (1.9 in)Longer than the 33 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, 33 years of values from 1993 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: 47.0 mm (1.9 in) in 2016; 36.3 mm (1.4 in) in 1993; 35.8 mm (1.4 in) in 2010.

Download the Data

  • Data for Bern standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Bern 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).