Built 2026-10-17 (17 October 2026)

Savanne Weather Records (CA006047615)

Record envelope, standing records and threshold days for Savanne (CA006047615), Ontario, Canada, with 71 years of record.

Key Facts for Savanne

  • Savanne (CA006047615) is a weather station in Ontario, Canada at 48.97 latitude and -90.20 longitude, 459 m (1,506 ft) above sea level.
  • The station reports from 1884 to 1954, 71 years of record.
  • 1,464 records set at Savanne still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • Savanne tied a daily record low minimum temperature of -5.6 C (21.9 F) on 23 September 1954.

About the Station

  • Location: Ontario, Canada, 48.97 latitude, -90.20 longitude.
  • Elevation: 459 m (1,506 ft).
  • Period of record: 1884 to 1954, 71 years.
  • Eligible elements: tmax, tmin, prcp, snow.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Savanne, with 2026 drawn through them The band shows the record high and record low for each calendar day at Savanne. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Savanne. 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 Savanne, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan8.3 C (46.9 F)-49.4 C (-56.9 F)n/an/a
Feb10.0 C (50.0 F)-49.4 C (-56.9 F)n/an/a
Mar25.0 C (77.0 F)-46.7 C (-52.1 F)n/an/a
Apr27.8 C (82.0 F)-35.6 C (-32.1 F)n/an/a
May32.2 C (90.0 F)-17.2 C (1.0 F)n/an/a
Jun36.1 C (97.0 F)-6.7 C (19.9 F)n/an/a
Jul38.3 C (100.9 F)-5.6 C (21.9 F)n/an/a
Aug34.4 C (93.9 F)-5.6 C (21.9 F)n/an/a
Sep32.2 C (90.0 F)-13.3 C (8.1 F)n/an/a
Oct26.1 C (79.0 F)-31.1 C (-24.0 F)n/an/a
Nov17.8 C (64.0 F)-40.0 C (-40.0 F)n/an/a
Dec7.8 C (46.0 F)-49.4 C (-56.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Savanne by the year they were set 1,464 records at Savanne still stand. 1936 holds the most, with 55. 02040601892: 321893: 331894: 361895: 241896: 401897: 321898: 261899: 491900: 231901: 231902: 221903: 221904: 111905: 171906: 141914: 351915: 231916: 221917: 261918: 381919: 461920: 281921: 221922: 411923: 311924: 371925: 341926: 331927: 211928: 331929: 431930: 421931: 361932: 311933: 281934: 401935: 351936: 551937: 231938: 231939: 311940: 231941: 431942: 301943: 231944: 251945: 401946: 121954: 71892189719021914191919241929193419391944
1,464 records at Savanne still stand. 1936 holds the most, with 55.
Standing records at Savanne by the year they were set
Year setStanding records
189232
189333
189436
189524
189640
189732
189826
189949
190023
190123
190222
190322
190411
190517
190614
191435
191523
191622
191726
191838
191946
192028
192122
192241
192331
192437
192534
192633
192721
192833
192943
193042
193136
193231
193328
193440
193535
193655
193723
193823
193931
194023
194143
194230
194323
194425
194540
194612
19547

All-Time Record Progression

1 new records
When Savanne set new all-time records 1 all-time records were set at Savanne between 9 January 1930 and 9 January 1930. Each dot is a new record. Record low minimum temperature9 January 1930: Record low minimum temperature -49.4 C (-56.9 F)1930
1 all-time records were set at Savanne between 9 January 1930 and 9 January 1930. Each dot is a new record.
When Savanne set new all-time records
DateKindDetail
1930-01-09Record low minimum temperatureRecord low minimum temperature -49.4 C (-56.9 F)

Wettest Day of Each Month

Aug: 101.6 mm (4.0 in)
Record daily precipitation for each month at Savanne The wettest day on record for each calendar month at Savanne. The most was 101.6 mm (4.0 in) on 4 August 1914. 050100150 Jan: 35.6 mm (1.4 in), 15 January 1889 Jan Feb: 22.9 mm (0.9 in), 16 February 1889 Feb Mar: 33.0 mm (1.3 in), 23 March 1905 Mar Apr: 50.0 mm (2.0 in), 27 April 1938 Apr May: 66.8 mm (2.6 in), 1 May 1954 May Jun: 88.9 mm (3.5 in), 24 June 1898 Jun Jul: 83.8 mm (3.3 in), 14 July 1943 Jul Aug: 101.6 mm (4.0 in), 4 August 1914 Aug Sep: 73.7 mm (2.9 in), 9 September 1896 Sep Oct: 43.2 mm (1.7 in), 4 October 1903 Oct Nov: 38.1 mm (1.5 in), 17 November 1887 Nov Dec: 25.4 mm (1.0 in), 16 December 1902 Dec
The wettest day on record for each calendar month at Savanne. The most was 101.6 mm (4.0 in) on 4 August 1914.
Record daily precipitation for each month at Savanne
MonthRecord daily precipitation (mm)Date
Jan35.6 mm (1.4 in)15 January 1889
Feb22.9 mm (0.9 in)16 February 1889
Mar33.0 mm (1.3 in)23 March 1905
Apr50.0 mm (2.0 in)27 April 1938
May66.8 mm (2.6 in)1 May 1954
Jun88.9 mm (3.5 in)24 June 1898
Jul83.8 mm (3.3 in)14 July 1943
Aug101.6 mm (4.0 in)4 August 1914
Sep73.7 mm (2.9 in)9 September 1896
Oct43.2 mm (1.7 in)4 October 1903
Nov38.1 mm (1.5 in)17 November 1887
Dec25.4 mm (1.0 in)16 December 1902

Period of Record Coverage

1892 to 1954
Days with data per year at Savanne 49 years of record at Savanne, 1892 to 1954. 7 years have data for under 90 percent of days and are left out of rankings: 1900, 1901, 1906, 1918, 1937, 1946, 1954. 1892: 366 of 366 days1893: 365 of 365 days1894: 365 of 365 days1895: 363 of 365 days1896: 366 of 366 days1897: 365 of 365 days1898: 357 of 365 days1899: 365 of 365 days1900: 273 of 365 days1901: 214 of 365 days1902: 365 of 365 days1903: 365 of 365 days1904: 366 of 366 days1905: 365 of 365 days1906: 212 of 365 days1914: 355 of 365 days1915: 365 of 365 days1916: 337 of 366 days1917: 364 of 365 days1918: 273 of 365 days1919: 347 of 365 days1920: 366 of 366 days1921: 364 of 365 days1922: 365 of 365 days1923: 365 of 365 days1924: 366 of 366 days1925: 365 of 365 days1926: 365 of 365 days1927: 365 of 365 days1928: 366 of 366 days1929: 365 of 365 days1930: 365 of 365 days1931: 365 of 365 days1932: 366 of 366 days1933: 365 of 365 days1934: 365 of 365 days1935: 364 of 365 days1936: 336 of 366 days1937: 304 of 365 days1938: 364 of 365 days1939: 365 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 272 of 365 days1954: 153 of 365 days1900192019301940
49 years of record at Savanne, 1892 to 1954. 7 years have data for under 90 percent of days and are left out of rankings: 1900, 1901, 1906, 1918, 1937, 1946, 1954.
Days with data per year at Savanne
YearDays with dataShare of yearComplete
1892366100%Yes
1893365100%Yes
1894365100%Yes
189536399%Yes
1896366100%Yes
1897365100%Yes
189835798%Yes
1899365100%Yes
190027375%No
190121459%No
1902365100%Yes
1903365100%Yes
1904366100%Yes
1905365100%Yes
190621258%No
191435597%Yes
1915365100%Yes
191633792%Yes
1917364100%Yes
191827375%No
191934795%Yes
1920366100%Yes
1921364100%Yes
1922365100%Yes
1923365100%Yes
1924366100%Yes
1925365100%Yes
1926365100%Yes
1927365100%Yes
1928366100%Yes
1929365100%Yes
1930365100%Yes
1931365100%Yes
1932366100%Yes
1933365100%Yes
1934365100%Yes
1935364100%Yes
193633692%Yes
193730483%No
1938364100%Yes
1939365100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
194627275%No
195415342%No

Latest Records

20
Latest records at Savanne
DateStationRecordValueBeat old record byOld record stoodSignificance
23 September 1954Savanne, CAdaily low min (Tie)-5.6 C (21.9 F)tie54 years5 of 100 (Routine)
18 September 1954Savanne, CAdaily rain24.9 mm (1.0 in)2.0 mm (0.08 in)31 years17 of 100 (Routine)
26 August 1954Savanne, CAdaily low min (Tie)-2.8 C (27.0 F)tie17 years2 of 100 (Routine)
24 August 1954Savanne, CAdaily high max (Tie)30.0 C (86.0 F)tie16 years2 of 100 (Routine)
24 June 1954Savanne, CAdaily high max31.7 C (89.1 F)2.3 C (4.1 F)53 years26 of 100 (Routine)
17 June 1954Savanne, CAdaily rain26.2 mm (1.0 in)5.4 mm (0.21 in)17 years17 of 100 (Routine)
16 June 1954Savanne, CAdaily rain42.9 mm (1.7 in)27.7 mm (1.1 in)32 years43 of 100 (Notable)
14 June 1954Savanne, CAdaily high min18.9 C (66.0 F)2.8 C (5.0 F)59 years28 of 100 (Routine)
11 June 1954Savanne, CAdaily rain33.0 mm (1.3 in)16.5 mm (0.6 in)20 years29 of 100 (Routine)
29 May 1954Savanne, CAdaily low max (Tie)7.8 C (46.0 F)tie25 years3 of 100 (Routine)
28 May 1954Savanne, CAdaily low max6.7 C (44.1 F)1.1 C (2.0 F)12 years10 of 100 (Routine)
26 May 1954Savanne, CAdaily low min (Tie)-7.2 C (19.0 F)tie24 years3 of 100 (Routine)
6 May 1954Savanne, CAdaily low min-13.3 C (8.1 F)1.6 C (2.9 F)29 years16 of 100 (Routine)
4 May 1954Savanne, CAmonthly low max-4.4 C (24.1 F)0.5 C (0.9 F)9 years18 of 100 (Routine)
3 May 1954Savanne, CAdaily snowfall23.9 cm (9.4 in)22.6 cm (8.9 in)28 years55 of 100 (Notable)
3 May 1954Savanne, CAdaily low max-2.8 C (27.0 F)1.7 C (3.1 F)28 years16 of 100 (Routine)
2 May 1954Savanne, CAdaily rain29.5 mm (1.2 in)15.5 mm (0.6 in)52 years42 of 100 (Notable)
2 May 1954Savanne, CAmonthly snowfall29.5 cm (11.6 in)6.6 cm (2.6 in)0 years30 of 100 (Routine)
2 May 1954Savanne, CAdaily low max0.0 C (32.0 F)1.1 C (2.0 F)24 years14 of 100 (Routine)
1 May 1954Savanne, CAmonthly rain66.8 mm (2.6 in)11.9 mm (0.5 in)16 years37 of 100 (Notable)

Climate Trend

39 complete years, 1892 to 1945
Annual mean temperature at Savanne as warming stripes, 1892 to 1945 One stripe for each of 39 complete years at Savanne, 1892 to 1945. Blue stripes are years cooler than the station's own mean of -0.1 C (31.8 F); red stripes are warmer. The coolest year was 1917, at -2.9 C (26.8 F), and the warmest was 1931, at 2.2 C (36.0 F). The strongest colour marks a difference of 2.8 C (5.0 F). 1892: -0.3 C, -0.2 C from the station mean1893: -1.0 C, -0.9 C from the station mean1894: 1.1 C, +1.2 C from the station mean1895: -0.4 C, -0.2 C from the station mean1896: -0.3 C, -0.1 C from the station mean1897: 0.2 C, +0.4 C from the station mean1898: 0.8 C, +1.0 C from the station mean1899: -0.8 C, -0.7 C from the station mean1902: 1.0 C, +1.1 C from the station mean1903: -0.3 C, -0.2 C from the station mean1904: -1.2 C, -1.0 C from the station mean1905: -0.4 C, -0.3 C from the station mean1914: 0.1 C, +0.2 C from the station mean1915: 1.5 C, +1.6 C from the station mean1917: -2.9 C, -2.7 C from the station mean1920: -0.3 C, -0.2 C from the station mean1921: 1.2 C, +1.3 C from the station mean1922: 0.8 C, +0.9 C from the station mean1923: -1.0 C, -0.9 C from the station mean1924: -2.1 C, -2.0 C from the station mean1925: -0.9 C, -0.8 C from the station mean1926: -1.7 C, -1.6 C from the station mean1927: -1.2 C, -1.0 C from the station mean1928: 0.5 C, +0.6 C from the station mean1929: -1.9 C, -1.8 C from the station mean1930: 0.4 C, +0.6 C from the station mean1931: 2.2 C, +2.4 C from the station mean1932: -0.3 C, -0.2 C from the station mean1933: -0.5 C, -0.4 C from the station mean1934: -0.7 C, -0.6 C from the station mean1935: -0.5 C, -0.4 C from the station mean1938: 0.7 C, +0.8 C from the station mean1939: 0.0 C, +0.1 C from the station mean1940: 0.2 C, +0.3 C from the station mean1941: 1.6 C, +1.7 C from the station mean1942: 0.8 C, +0.9 C from the station mean1943: -0.2 C, -0.1 C from the station mean1944: 1.1 C, +1.3 C from the station mean1945: -0.3 C, -0.1 C from the station mean189218951900190519101915192019251930193519401945
One stripe for each of 39 complete years at Savanne, 1892 to 1945. Blue stripes are years cooler than the station's own mean of -0.1 C (31.8 F); red stripes are warmer. The coolest year was 1917, at -2.9 C (26.8 F), and the warmest was 1931, at 2.2 C (36.0 F). The strongest colour marks a difference of 2.8 C (5.0 F).
Annual mean temperature at Savanne as warming stripes, 1892 to 1945
YearAnnual mean temperatureDifference from the station mean
1892-0.3 C-0.18 C
1893-1.0 C-0.92 C
18941.1 C+1.21 C
1895-0.4 C-0.25 C
1896-0.3 C-0.13 C
18970.2 C+0.35 C
18980.8 C+0.96 C
1899-0.8 C-0.66 C
19021.0 C+1.10 C
1903-0.3 C-0.17 C
1904-1.2 C-1.04 C
1905-0.4 C-0.30 C
19140.1 C+0.20 C
19151.5 C+1.60 C
1917-2.9 C-2.74 C
1920-0.3 C-0.19 C
19211.2 C+1.33 C
19220.8 C+0.93 C
1923-1.0 C-0.92 C
1924-2.1 C-2.02 C
1925-0.9 C-0.82 C
1926-1.7 C-1.60 C
1927-1.2 C-1.04 C
19280.5 C+0.61 C
1929-1.9 C-1.80 C
19300.4 C+0.56 C
19312.2 C+2.37 C
1932-0.3 C-0.16 C
1933-0.5 C-0.42 C
1934-0.7 C-0.58 C
1935-0.5 C-0.40 C
19380.7 C+0.84 C
19390.0 C+0.13 C
19400.2 C+0.30 C
19411.6 C+1.73 C
19420.8 C+0.94 C
1943-0.2 C-0.12 C
19441.1 C+1.26 C
1945-0.3 C-0.14 C

The fitted trend in annual mean temperature here over 1892 to 1945 is 0.1 C (-0.1 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.3 to 0.5) per decade. The slope is a straight line fitted to 39 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Savanne
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.1 to 0.3) per decade0.1 F (-0.3 to 0.5) per decade1892 to 194539Not clearly different from zero
Mean daily maximum0.1 C (-0.1 to 0.3) per decade0.1 F (-0.2 to 0.5) per decade1892 to 194539Not clearly different from zero
Mean daily minimum0.1 C (-0.2 to 0.3) per decade0.1 F (-0.3 to 0.6) per decade1892 to 194539Not 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

1884 to 1954
Yearly extremes at Savanne: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)190131.7 C (89.1 F)49
Coldest night (TNn)-49.4 C (-56.9 F)1930-43.9 C (-47.0 F)49
Wettest day (Rx1day)101.6 mm (4.0 in)191443.2 mm (1.7 in)57
Wettest five days (Rx5day)143.5 mm (5.6 in)189864.8 mm (2.6 in)57
Longest dry spell (CDD)44 days188722 days57

Hottest day (TXx)

Hottest day (TXx) at Savanne by year The hottest day of the year at Savanne, 1884 to 1954. The record is 38.3 C (100.9 F) in 1901, marked on the chart; the median year is 31.7 C (89.1 F). 27.53032.53537.540190019201940Record: 38.3 C (100.9 F) in 1901
The hottest day of the year at Savanne, 1884 to 1954. The record is 38.3 C (100.9 F) in 1901, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Savanne by year
YearHottest day (TXx)
1884n/a
1885n/a
1886n/a
1887n/a
1888n/a
1889n/a
1890n/a
1891n/a
189232.2 C (90.0 F)
189336.7 C (98.1 F)
189433.3 C (91.9 F)
189529.4 C (84.9 F)
189632.2 C (90.0 F)
189731.7 C (89.1 F)
189831.7 C (89.1 F)
189931.1 C (88.0 F)
190034.4 C (93.9 F)
190138.3 C (100.9 F)
190231.7 C (89.1 F)
190333.9 C (93.0 F)
190429.4 C (84.9 F)
190528.9 C (84.0 F)
190632.2 C (90.0 F)
191433.3 C (91.9 F)
191530.0 C (86.0 F)
191635.6 C (96.1 F)
191733.3 C (91.9 F)
191828.3 C (82.9 F)
191932.2 C (90.0 F)
192030.0 C (86.0 F)
192134.4 C (93.9 F)
192231.1 C (88.0 F)
192331.1 C (88.0 F)
192428.9 C (84.0 F)
192530.6 C (87.1 F)
192629.4 C (84.9 F)
192731.7 C (89.1 F)
192828.9 C (84.0 F)
192932.8 C (91.0 F)
193031.1 C (88.0 F)
193136.1 C (97.0 F)
193231.7 C (89.1 F)
193336.1 C (97.0 F)
193430.0 C (86.0 F)
193531.7 C (89.1 F)
193637.8 C (100.0 F)
193733.9 C (93.0 F)
193830.6 C (87.1 F)
193931.7 C (89.1 F)
194032.2 C (90.0 F)
194132.8 C (91.0 F)
194230.0 C (86.0 F)
194331.7 C (89.1 F)
194430.6 C (87.1 F)
194531.7 C (89.1 F)
194629.4 C (84.9 F)
195431.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at Savanne by year The coldest night of the year at Savanne, 1884 to 1954. The record is -49.4 C (-56.9 F) in 1930, marked on the chart; the median year is -43.9 C (-47.0 F). -50-40-30-20-10190019201940Record: -49.4 C (-56.9 F) in 1930
The coldest night of the year at Savanne, 1884 to 1954. The record is -49.4 C (-56.9 F) in 1930, marked on the chart; the median year is -43.9 C (-47.0 F).
Coldest night (TNn) at Savanne by year
YearColdest night (TNn)
1884n/a
1885n/a
1886n/a
1887n/a
1888n/a
1889n/a
1890n/a
1891n/a
1892-43.9 C (-47.0 F)
1893-43.9 C (-47.0 F)
1894-41.7 C (-43.1 F)
1895-46.7 C (-52.1 F)
1896-45.0 C (-49.0 F)
1897-45.6 C (-50.1 F)
1898-42.2 C (-44.0 F)
1899-48.3 C (-54.9 F)
1900-42.2 C (-44.0 F)
1901-38.3 C (-36.9 F)
1902-40.6 C (-41.1 F)
1903-42.2 C (-44.0 F)
1904-43.3 C (-45.9 F)
1905-38.9 C (-38.0 F)
1906-43.9 C (-47.0 F)
1914-47.2 C (-53.0 F)
1915-44.4 C (-47.9 F)
1916-45.6 C (-50.1 F)
1917-42.8 C (-45.0 F)
1918-43.9 C (-47.0 F)
1919-43.9 C (-47.0 F)
1920-43.3 C (-45.9 F)
1921-39.4 C (-38.9 F)
1922-44.4 C (-47.9 F)
1923-46.7 C (-52.1 F)
1924-43.9 C (-47.0 F)
1925-43.9 C (-47.0 F)
1926-44.4 C (-47.9 F)
1927-47.2 C (-53.0 F)
1928-42.8 C (-45.0 F)
1929-43.3 C (-45.9 F)
1930-49.4 C (-56.9 F)
1931-41.7 C (-43.1 F)
1932-43.9 C (-47.0 F)
1933-49.4 C (-56.9 F)
1934-48.9 C (-56.0 F)
1935-46.1 C (-51.0 F)
1936-43.9 C (-47.0 F)
1937-46.1 C (-51.0 F)
1938-44.4 C (-47.9 F)
1939-46.7 C (-52.1 F)
1940-41.1 C (-42.0 F)
1941-40.0 C (-40.0 F)
1942-42.2 C (-44.0 F)
1943-46.7 C (-52.1 F)
1944-43.3 C (-45.9 F)
1945-42.2 C (-44.0 F)
1946-38.9 C (-38.0 F)
1954-13.3 C (8.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Savanne by year The wettest day of the year at Savanne, 1884 to 1954. The record is 101.6 mm (4.0 in) in 1914, marked on the chart; the median year is 43.2 mm (1.7 in). 0255075100125190019201940Record: 101.6 mm (4.0 in) in 1914
The wettest day of the year at Savanne, 1884 to 1954. The record is 101.6 mm (4.0 in) in 1914, marked on the chart; the median year is 43.2 mm (1.7 in).
Wettest day (Rx1day) at Savanne by year
YearWettest day (Rx1day)
188420.3 mm (0.8 in)
188533.5 mm (1.3 in)
188630.5 mm (1.2 in)
188744.5 mm (1.8 in)
188826.7 mm (1.1 in)
188939.4 mm (1.6 in)
189027.9 mm (1.1 in)
189150.8 mm (2.0 in)
189257.4 mm (2.3 in)
189353.3 mm (2.1 in)
189435.6 mm (1.4 in)
189543.2 mm (1.7 in)
189673.7 mm (2.9 in)
189766.0 mm (2.6 in)
189888.9 mm (3.5 in)
189938.1 mm (1.5 in)
190053.3 mm (2.1 in)
190148.3 mm (1.9 in)
190235.6 mm (1.4 in)
190343.2 mm (1.7 in)
190435.6 mm (1.4 in)
190540.6 mm (1.6 in)
190640.6 mm (1.6 in)
1914101.6 mm (4.0 in)
191525.4 mm (1.0 in)
191645.7 mm (1.8 in)
191747.0 mm (1.9 in)
191834.3 mm (1.4 in)
191931.0 mm (1.2 in)
192064.3 mm (2.5 in)
192168.6 mm (2.7 in)
192248.8 mm (1.9 in)
192345.7 mm (1.8 in)
192435.6 mm (1.4 in)
192530.0 mm (1.2 in)
192648.8 mm (1.9 in)
192730.5 mm (1.2 in)
192837.6 mm (1.5 in)
192944.5 mm (1.8 in)
193030.5 mm (1.2 in)
193148.0 mm (1.9 in)
193241.9 mm (1.6 in)
193340.6 mm (1.6 in)
193425.4 mm (1.0 in)
193546.2 mm (1.8 in)
193633.0 mm (1.3 in)
193762.5 mm (2.5 in)
193850.0 mm (2.0 in)
193963.5 mm (2.5 in)
194042.7 mm (1.7 in)
194158.4 mm (2.3 in)
194248.0 mm (1.9 in)
194383.8 mm (3.3 in)
194458.9 mm (2.3 in)
194530.5 mm (1.2 in)
194629.5 mm (1.2 in)
195466.8 mm (2.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Savanne by year The wettest five days of the year at Savanne, 1884 to 1954. The record is 143.5 mm (5.6 in) in 1898, marked on the chart; the median year is 64.8 mm (2.6 in). 050100150190019201940Record: 143.5 mm (5.6 in) in 1898
The wettest five days of the year at Savanne, 1884 to 1954. The record is 143.5 mm (5.6 in) in 1898, marked on the chart; the median year is 64.8 mm (2.6 in).
Wettest five days (Rx5day) at Savanne by year
YearWettest five days (Rx5day)
188443.1 mm (1.7 in)
188551.8 mm (2.0 in)
188646.8 mm (1.8 in)
188757.2 mm (2.3 in)
188881.8 mm (3.2 in)
188967.4 mm (2.7 in)
189045.7 mm (1.8 in)
189183.8 mm (3.3 in)
189286.6 mm (3.4 in)
189357.1 mm (2.2 in)
189459.8 mm (2.4 in)
189554.4 mm (2.1 in)
189687.7 mm (3.5 in)
189788.9 mm (3.5 in)
1898143.5 mm (5.6 in)
189957.1 mm (2.2 in)
190092.7 mm (3.6 in)
190164.8 mm (2.6 in)
190285.1 mm (3.4 in)
190377.5 mm (3.1 in)
190452.0 mm (2.0 in)
190563.5 mm (2.5 in)
190659.7 mm (2.4 in)
1914139.7 mm (5.5 in)
191563.5 mm (2.5 in)
191652.1 mm (2.1 in)
191755.9 mm (2.2 in)
191847.2 mm (1.9 in)
191947.0 mm (1.9 in)
192082.4 mm (3.2 in)
192182.0 mm (3.2 in)
192257.3 mm (2.3 in)
192372.1 mm (2.8 in)
192461.5 mm (2.4 in)
192545.2 mm (1.8 in)
192667.9 mm (2.7 in)
192775.5 mm (3.0 in)
192851.8 mm (2.0 in)
192956.7 mm (2.2 in)
193044.9 mm (1.8 in)
193161.3 mm (2.4 in)
193271.1 mm (2.8 in)
193365.5 mm (2.6 in)
193442.1 mm (1.7 in)
193563.6 mm (2.5 in)
193659.7 mm (2.4 in)
193796.1 mm (3.8 in)
1938111.7 mm (4.4 in)
193977.2 mm (3.0 in)
194074.4 mm (2.9 in)
1941123.9 mm (4.9 in)
194256.2 mm (2.2 in)
194387.9 mm (3.5 in)
194496.9 mm (3.8 in)
194568.9 mm (2.7 in)
194678.3 mm (3.1 in)
1954126.3 mm (5.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Savanne by year The longest dry spell of the year at Savanne, 1884 to 1954. The record is 44 days in 1887, marked on the chart; the median year is 22 days. 01020304050190019201940Record: 44 days in 1887
The longest dry spell of the year at Savanne, 1884 to 1954. The record is 44 days in 1887, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Savanne by year
YearLongest dry spell (CDD)
18845 days
188528 days
188638 days
188744 days
188819 days
188920 days
189019 days
189128 days
189231 days
189323 days
189425 days
189519 days
189630 days
189719 days
189821 days
189935 days
190040 days
190120 days
190220 days
190328 days
190429 days
190525 days
190618 days
191432 days
191537 days
191629 days
191726 days
191818 days
191916 days
192022 days
192119 days
192218 days
192321 days
192437 days
192524 days
192617 days
192717 days
192843 days
192922 days
193026 days
193138 days
193222 days
193315 days
193421 days
193521 days
193628 days
193713 days
193835 days
193922 days
194024 days
194119 days
194223 days
194324 days
194419 days
194517 days
194619 days
195413 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

39 years with a frost

Across 39 years with a frost, the median last spring frost at Savanne falls on 23 June and the median first autumn frost on 16 July, which leaves a median of 23 days between them.

Fitted over all years, the growing season changes by -1.5 days per decade at this station.

Frost dates and growing season at Savanne
MeasureMedian, all yearsEarliest periodRecent period (1903 to 1945)Recent against earliestFitted trend
Last spring frost23 Junen/a24 Junen/a-0.3 days per decade
First autumn frost16 Julyn/a13 Julyn/a-1.8 days per decade
Growing days23 daysn/a22 daysn/a-1.5 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

48 years, 1885 to 1945

A day with at least 43.0 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 108.4 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Savanne: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years43.0 mm (1.7 in)
5 years57.2 mm (2.3 in)
10 years67.7 mm (2.7 in)
25 years82.7 mm (3.3 in)
50 years95.0 mm (3.7 in)Longer than the 48 years of record
100 years108.4 mm (4.3 in)Longer than the 48 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, 48 years of values from 1885 to 1945.

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: 101.6 mm (4.0 in) in 1914; 88.9 mm (3.5 in) in 1898; 83.8 mm (3.3 in) in 1943.

Download the Data

  • Data for Savanne standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Savanne 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).