Built 2026-10-16 (16 October 2026)

Grunow Weather Records (GME00123142)

Record envelope, standing records and threshold days for Grunow (GME00123142), Germany, with 58 years of record.

Key Facts for Grunow

  • Grunow (GME00123142) is a weather station in Germany at 53.32 latitude and 13.94 longitude, 56 m (184 ft) above sea level.
  • The station reports from 1969 to 2026, 58 years of record.
  • 1,464 records set at Grunow still stand.
  • Records are tracked for tmax, tmin, prcp, snwd: an element needs 30 years of data to be eligible.
  • Grunow set a daily record high minimum temperature of 18.5 C (65.3 F) on 30 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, 53.32 latitude, 13.94 longitude.
  • Elevation: 56 m (184 ft).
  • Period of record: 1969 to 2026, 58 years.
  • Eligible elements: tmax, tmin, prcp, snwd.

Daily Record Envelope and 2026

12 days at or beyond a record
Daily record high and record low at Grunow, with 2026 drawn through them The band shows the record high and record low for each calendar day at Grunow. The lines show the 2026 daily maximum and minimum. 12 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 Grunow. The lines show the 2026 daily maximum and minimum. 12 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Grunow, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan15.2 C (59.4 F)-26.1 C (-15.0 F)5.3 C (41.5 F)-11.0 C (12.2 F)
Feb17.7 C (63.9 F)-23.5 C (-10.3 F)17.7 C (63.9 F)-13.3 C (8.1 F)
Mar22.1 C (71.8 F)-19.4 C (-2.9 F)16.7 C (62.1 F)-2.8 C (27.0 F)
Apr28.2 C (82.8 F)-7.4 C (18.7 F)19.2 C (66.6 F)-2.4 C (27.7 F)
May30.8 C (87.4 F)-4.2 C (24.4 F)27.5 C (81.5 F)2.7 C (36.9 F)
Jun37.1 C (98.8 F)1.2 C (34.2 F)37.1 C (98.8 F)6.4 C (43.5 F)
Jul37.4 C (99.3 F)5.8 C (42.4 F)37.2 C (99.0 F)10.4 C (50.7 F)
Aug37.9 C (100.2 F)5.7 C (42.3 F)35.6 C (96.1 F)9.4 C (48.9 F)
Sep32.9 C (91.2 F)1.1 C (34.0 F)n/an/a
Oct26.1 C (79.0 F)-4.0 C (24.8 F)n/an/a
Nov18.5 C (65.3 F)-12.7 C (9.1 F)n/an/a
Dec15.0 C (59.0 F)-20.4 C (-4.7 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Grunow by the year they were set 1,464 records at Grunow still stand. 1987 holds the most, with 57. 02040601973: 151974: 211975: 171976: 261977: 271978: 371979: 421980: 491981: 321982: 111983: 191984: 191985: 511986: 411987: 571988: 161989: 311990: 251991: 191992: 121993: 441994: 361995: 201996: 401997: 261998: 381999: 132000: 282001: 172002: 332003: 222004: 192005: 192006: 322007: 202008: 62009: 122010: 362011: 182012: 282013: 412014: 222015: 362016: 242017: 112018: 392019: 282020: 282021: 312022: 272023: 252024: 442025: 212026: 13197319791985199119972003200920152021
1,464 records at Grunow still stand. 1987 holds the most, with 57.
Standing records at Grunow by the year they were set
Year setStanding records
197315
197421
197517
197626
197727
197837
197942
198049
198132
198211
198319
198419
198551
198641
198757
198816
198931
199025
199119
199212
199344
199436
199520
199640
199726
199838
199913
200028
200117
200233
200322
200419
200519
200632
200720
20086
200912
201036
201118
201228
201341
201422
201536
201624
201711
201839
201928
202028
202131
202227
202325
202444
202521
202613

Wettest Day of Each Month

Jul: 128.1 mm (5.0 in)
Record daily precipitation for each month at Grunow The wettest day on record for each calendar month at Grunow. The most was 128.1 mm (5.0 in) on 18 July 1987. 050100150 Jan: 23.8 mm (0.9 in), 18 January 2007 Jan Feb: 19.5 mm (0.8 in), 23 February 1988 Feb Mar: 33.2 mm (1.3 in), 11 March 1981 Mar Apr: 42.3 mm (1.7 in), 10 April 1987 Apr May: 59.4 mm (2.3 in), 20 May 1972 May Jun: 60.1 mm (2.4 in), 12 June 1993 Jun Jul: 128.1 mm (5.0 in), 18 July 1987 Jul Aug: 83.5 mm (3.3 in), 29 August 1969 Aug Sep: 39.6 mm (1.6 in), 6 September 1996 Sep Oct: 29.4 mm (1.2 in), 5 October 2017 Oct Nov: 36.3 mm (1.4 in), 4 November 2021 Nov Dec: 17.4 mm (0.7 in), 8 December 1979 Dec
The wettest day on record for each calendar month at Grunow. The most was 128.1 mm (5.0 in) on 18 July 1987.
Record daily precipitation for each month at Grunow
MonthRecord daily precipitation (mm)Date
Jan23.8 mm (0.9 in)18 January 2007
Feb19.5 mm (0.8 in)23 February 1988
Mar33.2 mm (1.3 in)11 March 1981
Apr42.3 mm (1.7 in)10 April 1987
May59.4 mm (2.3 in)20 May 1972
Jun60.1 mm (2.4 in)12 June 1993
Jul128.1 mm (5.0 in)18 July 1987
Aug83.5 mm (3.3 in)29 August 1969
Sep39.6 mm (1.6 in)6 September 1996
Oct29.4 mm (1.2 in)5 October 2017
Nov36.3 mm (1.4 in)4 November 2021
Dec17.4 mm (0.7 in)8 December 1979

Period of Record Coverage

1973 to 2026
Days with data per year at Grunow 54 years of record at Grunow, 1973 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1991, 1994, 2026. 1973: 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: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 319 of 365 days1992: 339 of 366 days1993: 353 of 365 days1994: 322 of 365 days1995: 332 of 365 days1996: 354 of 366 days1997: 359 of 365 days1998: 347 of 365 days1999: 349 of 365 days2000: 352 of 366 days2001: 354 of 365 days2002: 363 of 365 days2003: 363 of 365 days2004: 351 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 364 of 366 days2009: 365 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: 243 of 365 days19801990200020102020
54 years of record at Grunow, 1973 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1991, 1994, 2026.
Days with data per year at Grunow
YearDays with dataShare of yearComplete
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
1988366100%Yes
1989365100%Yes
1990365100%Yes
199131987%No
199233993%Yes
199335397%Yes
199432288%No
199533291%Yes
199635497%Yes
199735998%Yes
199834795%Yes
199934996%Yes
200035296%Yes
200135497%Yes
200236399%Yes
200336399%Yes
200435196%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
200836499%Yes
2009365100%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
202624367%No

Latest Records

20
Latest records at Grunow
DateStationRecordValueBeat old record byOld record stoodSignificance
30 August 2026Grunow, DEdaily high min (Provisional)18.5 C (65.3 F)1.0 C (1.8 F)7 years10 of 100 (Routine)
21 August 2026Grunow, DEdaily rain (Provisional)20.6 mm (0.8 in)8.5 mm (0.33 in)45 years20 of 100 (Routine)
15 August 2026Grunow, DEdaily high max35.6 C (96.1 F)1.3 C (2.3 F)0 years8 of 100 (Routine)
30 July 2026Grunow, DEdaily high max37.2 C (99.0 F)3.2 C (5.8 F)32 years21 of 100 (Routine)
28 June 2026Grunow, DEdaily high max34.9 C (94.8 F)4.4 C (7.9 F)52 years29 of 100 (Routine)
28 June 2026Grunow, DEdaily high min19.1 C (66.4 F)0.9 C (1.6 F)52 years23 of 100 (Routine)
27 June 2026Grunow, DEmonthly high max37.1 C (98.8 F)0.3 C (0.5 F)6 years17 of 100 (Routine)
4 June 2026Grunow, DEdaily rain14.8 mm (0.6 in)1.9 mm (0.07 in)36 years17 of 100 (Routine)
26 May 2026Grunow, DEdaily high max27.5 C (81.5 F)1.1 C (2.0 F)40 years19 of 100 (Routine)
3 May 2026Grunow, DEdaily high max27.0 C (80.6 F)2.0 C (3.6 F)1 year9 of 100 (Routine)
19 April 2026Grunow, DEdaily rain13.8 mm (0.5 in)1.4 mm (0.06 in)31 years18 of 100 (Routine)
11 March 2026Grunow, DEdaily high max16.7 C (62.1 F)2.1 C (3.8 F)48 years23 of 100 (Routine)
9 March 2026Grunow, DEdaily high max15.4 C (59.7 F)0.1 C (0.2 F)0 years5 of 100 (Routine)
3 March 2026Grunow, DEdaily high max15.0 C (59.0 F)1.3 C (2.3 F)4 years8 of 100 (Routine)
28 February 2026Grunow, DEmonthly high max17.7 C (63.9 F)0.6 C (1.1 F)0 years16 of 100 (Routine)
28 February 2026Grunow, DEdaily high min (Tie)5.7 C (42.3 F)tie26 years3 of 100 (Routine)
27 February 2026Grunow, DEmonthly high max17.1 C (62.8 F)0.1 C (0.2 F)36 years25 of 100 (Routine)
26 February 2026Grunow, DEdaily high max (Tie)12.1 C (53.8 F)tie36 years3 of 100 (Routine)
12 February 2026Grunow, DEdaily rain11.9 mm (0.5 in)1.8 mm (0.07 in)20 years18 of 100 (Routine)
2 February 2026Grunow, DEdaily low max-8.3 C (17.1 F)2.0 C (3.6 F)14 years13 of 100 (Routine)

Climate Trend

50 complete years, 1973 to 2025
Annual mean temperature at Grunow as warming stripes, 1973 to 2025 One stripe for each of 50 complete years at Grunow, 1973 to 2025. Blue stripes are years cooler than the station's own mean of 9.0 C (48.2 F); red stripes are warmer. The coolest year was 1987, at 7.0 C (44.5 F), and the warmest was 2024, at 11.1 C (52.1 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1973: 8.4 C, -0.6 C from the station mean1974: 9.0 C, 0.0 C from the station mean1975: 9.1 C, +0.1 C from the station mean1976: 7.7 C, -1.3 C from the station mean1977: 8.6 C, -0.4 C from the station mean1978: 7.7 C, -1.3 C from the station mean1979: 7.2 C, -1.8 C from the station mean1980: 7.2 C, -1.8 C from the station mean1981: 8.3 C, -0.7 C from the station mean1982: 8.8 C, -0.2 C from the station mean1983: 9.0 C, 0.0 C from the station mean1984: 8.0 C, -1.0 C from the station mean1985: 7.3 C, -1.7 C from the station mean1986: 7.8 C, -1.2 C from the station mean1987: 7.0 C, -2.0 C from the station mean1988: 9.0 C, 0.0 C from the station mean1989: 9.8 C, +0.8 C from the station mean1990: 9.8 C, +0.8 C from the station mean1992: 9.3 C, +0.3 C from the station mean1993: 8.4 C, -0.6 C from the station mean1996: 7.1 C, -1.9 C from the station mean1997: 8.8 C, -0.2 C from the station mean1998: 9.0 C, 0.0 C from the station mean1999: 9.8 C, +0.8 C from the station mean2000: 10.1 C, +1.1 C from the station mean2001: 8.8 C, -0.2 C from the station mean2002: 9.4 C, +0.4 C from the station mean2003: 8.8 C, -0.2 C from the station mean2004: 8.8 C, -0.2 C from the station mean2005: 8.9 C, -0.1 C from the station mean2006: 9.5 C, +0.5 C from the station mean2007: 9.8 C, +0.8 C from the station mean2008: 9.6 C, +0.6 C from the station mean2009: 8.9 C, -0.1 C from the station mean2010: 7.4 C, -1.6 C from the station mean2011: 9.5 C, +0.5 C from the station mean2012: 8.9 C, -0.1 C from the station mean2013: 8.7 C, -0.3 C from the station mean2014: 10.2 C, +1.2 C from the station mean2015: 9.8 C, +0.8 C from the station mean2016: 9.6 C, +0.6 C from the station mean2017: 9.4 C, +0.4 C from the station mean2018: 10.3 C, +1.3 C from the station mean2019: 10.5 C, +1.5 C from the station mean2020: 10.3 C, +1.3 C from the station mean2021: 9.2 C, +0.2 C from the station mean2022: 10.3 C, +1.3 C from the station mean2023: 10.3 C, +1.3 C from the station mean2024: 11.1 C, +2.1 C from the station mean2025: 9.9 C, +0.9 C from the station mean19731980198519901995200020052010201520202025
One stripe for each of 50 complete years at Grunow, 1973 to 2025. Blue stripes are years cooler than the station's own mean of 9.0 C (48.2 F); red stripes are warmer. The coolest year was 1987, at 7.0 C (44.5 F), and the warmest was 2024, at 11.1 C (52.1 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Grunow as warming stripes, 1973 to 2025
YearAnnual mean temperatureDifference from the station mean
19738.4 C-0.58 C
19749.0 C-0.01 C
19759.1 C+0.14 C
19767.7 C-1.25 C
19778.6 C-0.41 C
19787.7 C-1.33 C
19797.2 C-1.80 C
19807.2 C-1.82 C
19818.3 C-0.66 C
19828.8 C-0.23 C
19839.0 C+0.02 C
19848.0 C-1.00 C
19857.3 C-1.74 C
19867.8 C-1.19 C
19877.0 C-2.03 C
19889.0 C-0.02 C
19899.8 C+0.83 C
19909.8 C+0.76 C
19929.3 C+0.29 C
19938.4 C-0.62 C
19967.1 C-1.93 C
19978.8 C-0.24 C
19989.0 C+0.05 C
19999.8 C+0.80 C
200010.1 C+1.13 C
20018.8 C-0.22 C
20029.4 C+0.44 C
20038.8 C-0.17 C
20048.8 C-0.23 C
20058.9 C-0.13 C
20069.5 C+0.55 C
20079.8 C+0.81 C
20089.6 C+0.56 C
20098.9 C-0.10 C
20107.4 C-1.57 C
20119.5 C+0.52 C
20128.9 C-0.10 C
20138.7 C-0.29 C
201410.2 C+1.22 C
20159.8 C+0.77 C
20169.6 C+0.60 C
20179.4 C+0.36 C
201810.3 C+1.26 C
201910.5 C+1.54 C
202010.3 C+1.28 C
20219.2 C+0.21 C
202210.3 C+1.26 C
202310.3 C+1.31 C
202411.1 C+2.15 C
20259.9 C+0.92 C

The annual mean temperature here has risen by 0.4 C (0.3 to 0.6) per decade over 1973 to 2025. In Fahrenheit: 0.7 F (0.5 to 1.0) per decade. The slope is a straight line fitted to 50 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Grunow
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.4 C (0.3 to 0.6) per decade0.7 F (0.5 to 1.0) per decade1973 to 202550Rise
Mean daily maximum0.6 C (0.4 to 0.7) per decade1.0 F (0.7 to 1.3) per decade1973 to 202550Rise
Mean daily minimum0.3 C (0.1 to 0.4) per decade0.5 F (0.2 to 0.7) per decade1973 to 202550Rise

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

1969 to 2026
Yearly extremes at Grunow: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.9 C (100.2 F)199433.8 C (92.8 F)54
Coldest night (TNn)-26.1 C (-15.0 F)1987-13.6 C (7.5 F)54
Wettest day (Rx1day)128.1 mm (5.0 in)198730.4 mm (1.2 in)58
Wettest five days (Rx5day)138.9 mm (5.5 in)198745.9 mm (1.8 in)58
Longest dry spell (CDD)50 days202025 days58

Hottest day (TXx)

Hottest day (TXx) at Grunow by year The hottest day of the year at Grunow, 1969 to 2026. The record is 37.9 C (100.2 F) in 1994, marked on the chart; the median year is 33.8 C (92.8 F). 27.53032.53537.540197019801990200020102020Record: 37.9 C (100.2 F) in 1994
The hottest day of the year at Grunow, 1969 to 2026. The record is 37.9 C (100.2 F) in 1994, marked on the chart; the median year is 33.8 C (92.8 F).
Hottest day (TXx) at Grunow by year
YearHottest day (TXx)
1969n/a
1970n/a
1971n/a
1972n/a
197331.3 C (88.3 F)
197432.3 C (90.1 F)
197532.8 C (91.0 F)
197634.3 C (93.7 F)
197729.0 C (84.2 F)
197830.2 C (86.4 F)
197929.6 C (85.3 F)
198029.6 C (85.3 F)
198130.4 C (86.7 F)
198231.7 C (89.1 F)
198334.7 C (94.5 F)
198431.8 C (89.2 F)
198529.5 C (85.1 F)
198633.8 C (92.8 F)
198730.5 C (86.9 F)
198828.3 C (82.9 F)
198933.5 C (92.3 F)
199030.7 C (87.3 F)
199132.9 C (91.2 F)
199237.6 C (99.7 F)
199330.1 C (86.2 F)
199437.9 C (100.2 F)
199531.9 C (89.4 F)
199631.1 C (88.0 F)
199732.1 C (89.8 F)
199837.4 C (99.3 F)
199933.9 C (93.0 F)
200036.0 C (96.8 F)
200134.1 C (93.4 F)
200233.9 C (93.0 F)
200334.0 C (93.2 F)
200431.8 C (89.2 F)
200531.5 C (88.7 F)
200635.8 C (96.4 F)
200736.9 C (98.4 F)
200834.0 C (93.2 F)
200931.2 C (88.2 F)
201036.0 C (96.8 F)
201130.5 C (86.9 F)
201233.9 C (93.0 F)
201333.8 C (92.8 F)
201432.6 C (90.7 F)
201537.0 C (98.6 F)
201633.8 C (92.8 F)
201731.8 C (89.2 F)
201836.8 C (98.2 F)
201936.8 C (98.2 F)
202035.3 C (95.5 F)
202134.6 C (94.3 F)
202236.6 C (97.9 F)
202334.0 C (93.2 F)
202433.9 C (93.0 F)
202535.6 C (96.1 F)
202637.2 C (99.0 F)

Coldest night (TNn)

Coldest night (TNn) at Grunow by year The coldest night of the year at Grunow, 1969 to 2026. The record is -26.1 C (-15.0 F) in 1987, marked on the chart; the median year is -13.6 C (7.5 F). -30-25-20-15-10-5197019801990200020102020Record: -26.1 C (-15.0 F) in 1987
The coldest night of the year at Grunow, 1969 to 2026. The record is -26.1 C (-15.0 F) in 1987, marked on the chart; the median year is -13.6 C (7.5 F).
Coldest night (TNn) at Grunow by year
YearColdest night (TNn)
1969n/a
1970n/a
1971n/a
1972n/a
1973-12.7 C (9.1 F)
1974-7.2 C (19.0 F)
1975-8.4 C (16.9 F)
1976-16.6 C (2.1 F)
1977-9.2 C (15.4 F)
1978-18.9 C (-2.0 F)
1979-20.0 C (-4.0 F)
1980-20.3 C (-4.5 F)
1981-16.6 C (2.1 F)
1982-18.8 C (-1.8 F)
1983-11.4 C (11.5 F)
1984-9.4 C (15.1 F)
1985-24.0 C (-11.2 F)
1986-23.5 C (-10.3 F)
1987-26.1 C (-15.0 F)
1988-9.1 C (15.6 F)
1989-9.8 C (14.4 F)
1990-6.4 C (20.5 F)
1991-15.9 C (3.4 F)
1992-12.8 C (9.0 F)
1993-14.1 C (6.6 F)
1994-13.5 C (7.7 F)
1995-19.1 C (-2.4 F)
1996-20.4 C (-4.7 F)
1997-22.5 C (-8.5 F)
1998-15.2 C (4.6 F)
1999-15.1 C (4.8 F)
2000-11.3 C (11.7 F)
2001-12.6 C (9.3 F)
2002-12.3 C (9.9 F)
2003-18.8 C (-1.8 F)
2004-11.8 C (10.8 F)
2005-15.2 C (4.6 F)
2006-18.8 C (-1.8 F)
2007-12.7 C (9.1 F)
2008-8.2 C (17.2 F)
2009-17.5 C (0.5 F)
2010-21.1 C (-6.0 F)
2011-13.1 C (8.4 F)
2012-23.4 C (-10.1 F)
2013-14.3 C (6.3 F)
2014-15.5 C (4.1 F)
2015-10.7 C (12.7 F)
2016-13.4 C (7.9 F)
2017-10.4 C (13.3 F)
2018-13.7 C (7.3 F)
2019-7.1 C (19.2 F)
2020-6.1 C (21.0 F)
2021-16.4 C (2.5 F)
2022-13.9 C (7.0 F)
2023-11.7 C (10.9 F)
2024-12.4 C (9.7 F)
2025-9.5 C (14.9 F)
2026-13.3 C (8.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Grunow by year The wettest day of the year at Grunow, 1969 to 2026. The record is 128.1 mm (5.0 in) in 1987, marked on the chart; the median year is 30.4 mm (1.2 in). 050100150197019801990200020102020Record: 128.1 mm (5.0 in) in 1987
The wettest day of the year at Grunow, 1969 to 2026. The record is 128.1 mm (5.0 in) in 1987, marked on the chart; the median year is 30.4 mm (1.2 in).
Wettest day (Rx1day) at Grunow by year
YearWettest day (Rx1day)
196983.5 mm (3.3 in)
197017.3 mm (0.7 in)
197135.7 mm (1.4 in)
197292.2 mm (3.6 in)
197319.1 mm (0.8 in)
197415.6 mm (0.6 in)
197539.1 mm (1.5 in)
197629.7 mm (1.2 in)
197735.1 mm (1.4 in)
197876.7 mm (3.0 in)
197944.9 mm (1.8 in)
198032.4 mm (1.3 in)
198133.2 mm (1.3 in)
198212.2 mm (0.5 in)
198317.2 mm (0.7 in)
198447.9 mm (1.9 in)
198524.0 mm (0.9 in)
198626.1 mm (1.0 in)
1987128.1 mm (5.0 in)
198819.5 mm (0.8 in)
198916.6 mm (0.7 in)
199034.9 mm (1.4 in)
199124.8 mm (1.0 in)
199226.4 mm (1.0 in)
199360.1 mm (2.4 in)
199416.1 mm (0.6 in)
199517.9 mm (0.7 in)
199639.6 mm (1.6 in)
199733.4 mm (1.3 in)
199823.6 mm (0.9 in)
199916.9 mm (0.7 in)
200026.3 mm (1.0 in)
200134.1 mm (1.3 in)
200236.6 mm (1.4 in)
200327.2 mm (1.1 in)
200419.1 mm (0.8 in)
200524.5 mm (1.0 in)
200621.2 mm (0.8 in)
200754.8 mm (2.2 in)
200825.3 mm (1.0 in)
200951.6 mm (2.0 in)
201044.7 mm (1.8 in)
201148.6 mm (1.9 in)
201226.8 mm (1.1 in)
201333.5 mm (1.3 in)
201430.7 mm (1.2 in)
201525.6 mm (1.0 in)
201630.1 mm (1.2 in)
201755.6 mm (2.2 in)
201828.2 mm (1.1 in)
201938.6 mm (1.5 in)
202018.4 mm (0.7 in)
202140.8 mm (1.6 in)
202236.8 mm (1.4 in)
202346.5 mm (1.8 in)
202428.2 mm (1.1 in)
202546.3 mm (1.8 in)
202626.1 mm (1.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Grunow by year The wettest five days of the year at Grunow, 1969 to 2026. The record is 138.9 mm (5.5 in) in 1987, marked on the chart; the median year is 45.9 mm (1.8 in). 050100150197019801990200020102020Record: 138.9 mm (5.5 in) in 1987
The wettest five days of the year at Grunow, 1969 to 2026. The record is 138.9 mm (5.5 in) in 1987, marked on the chart; the median year is 45.9 mm (1.8 in).
Wettest five days (Rx5day) at Grunow by year
YearWettest five days (Rx5day)
196999.6 mm (3.9 in)
197028.8 mm (1.1 in)
197165.6 mm (2.6 in)
1972100.3 mm (3.9 in)
197329.3 mm (1.2 in)
197428.4 mm (1.1 in)
197546.9 mm (1.8 in)
197642.5 mm (1.7 in)
197768.5 mm (2.7 in)
197889.4 mm (3.5 in)
197957.4 mm (2.3 in)
198065.7 mm (2.6 in)
198145.1 mm (1.8 in)
198225.6 mm (1.0 in)
198344.5 mm (1.8 in)
198479.9 mm (3.1 in)
198539.2 mm (1.5 in)
198668.4 mm (2.7 in)
1987138.9 mm (5.5 in)
198833.5 mm (1.3 in)
198936.4 mm (1.4 in)
199069.9 mm (2.8 in)
199147.1 mm (1.9 in)
199224.2 mm (1.0 in)
199382.9 mm (3.3 in)
199432.7 mm (1.3 in)
199536.8 mm (1.4 in)
199655.1 mm (2.2 in)
199772.6 mm (2.9 in)
199837.6 mm (1.5 in)
199944.2 mm (1.7 in)
200051.8 mm (2.0 in)
200141.6 mm (1.6 in)
200240.9 mm (1.6 in)
200341.5 mm (1.6 in)
200426.7 mm (1.1 in)
200538.1 mm (1.5 in)
200629.6 mm (1.2 in)
200765.9 mm (2.6 in)
200841.9 mm (1.6 in)
200967.6 mm (2.7 in)
201077.5 mm (3.1 in)
201167.7 mm (2.7 in)
201259.0 mm (2.3 in)
201341.9 mm (1.6 in)
201456.1 mm (2.2 in)
201545.7 mm (1.8 in)
201641.4 mm (1.6 in)
201788.5 mm (3.5 in)
201849.3 mm (1.9 in)
201942.5 mm (1.7 in)
202040.4 mm (1.6 in)
202153.3 mm (2.1 in)
202246.0 mm (1.8 in)
202388.0 mm (3.5 in)
202432.5 mm (1.3 in)
202581.0 mm (3.2 in)
202636.6 mm (1.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Grunow by year The longest dry spell of the year at Grunow, 1969 to 2026. The record is 50 days in 2020, marked on the chart; the median year is 25 days. 1020304050197019801990200020102020Record: 50 days in 2020
The longest dry spell of the year at Grunow, 1969 to 2026. The record is 50 days in 2020, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Grunow by year
YearLongest dry spell (CDD)
196932 days
197023 days
197122 days
197225 days
197322 days
197425 days
197525 days
197627 days
197714 days
197836 days
197920 days
198020 days
198133 days
198238 days
198334 days
198422 days
198521 days
198628 days
198719 days
198823 days
198928 days
199022 days
199126 days
199214 days
199315 days
199418 days
199514 days
199625 days
199726 days
199822 days
199916 days
200033 days
200117 days
200231 days
200332 days
200431 days
200520 days
200627 days
200744 days
200825 days
200916 days
201019 days
201138 days
201222 days
201326 days
201432 days
201530 days
201626 days
201717 days
201829 days
201926 days
202050 days
202122 days
202242 days
202325 days
202422 days
202529 days
202620 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

50 years with a frost

Across 50 years with a frost, the median last spring frost at Grunow falls on 22 April and the median first autumn frost on 30 October, which leaves a median of 192 days between them.

Fitted over all years, the growing season changes by +3.2 days per decade at this station.

Frost dates and growing season at Grunow
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost22 Apriln/a21 Apriln/a-0.6 days per decade
First autumn frost30 Octobern/a2 Novembern/a+2.5 days per decade
Growing days192 daysn/a194 daysn/a+3.2 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

53 years, 1969 to 2025

A day with at least 31.4 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 120.0 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Grunow: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years31.4 mm (1.2 in)
5 years47.4 mm (1.9 in)
10 years60.6 mm (2.4 in)
25 years80.8 mm (3.2 in)
50 years98.9 mm (3.9 in)
100 years120.0 mm (4.7 in)Longer than the 53 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, 53 years of values from 1969 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: 128.1 mm (5.0 in) in 1987; 92.2 mm (3.6 in) in 1972; 83.5 mm (3.3 in) in 1969.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Grunow, at 1989. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1989 ran 0.1 C (0.3 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Grunow, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1989+0.1+0.3likely5

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

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Grunow had a mean temperature of 9.9 C (49.7 F) and 468.3 mm (18.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Weissenfels (Germany, 269 km away), Mescalero (United States, 8,786 km away) and Bad Kreuznach (Germany, 569 km away).

Climate twins of Grunow: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
WeissenfelsGermany269 km (167 mi)9.7 C (49.4 F)470.7 mm (18.5 in)0.44
MescaleroUnited States8,786 km (5,459 mi)9.9 C (49.9 F)504.0 mm (19.8 in)0.50
Bad KreuznachGermany569 km (354 mi)9.7 C (49.4 F)517.2 mm (20.4 in)0.60

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 Grunow standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Grunow 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).