Built 2026-10-17 (17 October 2026)

Stillwater Weather Records (CA008205600)

Record envelope, standing records and threshold days for Stillwater (CA008205600), Nova Scotia, Canada, with 65 years of record.

Key Facts for Stillwater

  • Stillwater (CA008205600) is a weather station in Nova Scotia, Canada at 45.18 latitude and -62.00 longitude, 17 m (56 ft) above sea level.
  • The station reports from 1915 to 1979, 65 years of record.
  • 1,464 records set at Stillwater still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • Stillwater set a daily record high minimum temperature of 11.5 C (52.7 F) on 22 October 1979.

About the Station

  • Location: Nova Scotia, Canada, 45.18 latitude, -62.00 longitude.
  • Elevation: 17 m (56 ft).
  • Period of record: 1915 to 1979, 65 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 Stillwater, with 2026 drawn through them The band shows the record high and record low for each calendar day at Stillwater. The lines show the 2026 daily maximum and minimum. 0 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 Stillwater. 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 Stillwater, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.3 C (55.9 F)-35.6 C (-32.1 F)n/an/a
Feb12.2 C (54.0 F)-40.0 C (-40.0 F)n/an/a
Mar20.0 C (68.0 F)-32.8 C (-27.0 F)n/an/a
Apr26.7 C (80.1 F)-24.4 C (-11.9 F)n/an/a
May31.7 C (89.1 F)-9.4 C (15.1 F)n/an/a
Jun34.4 C (93.9 F)-7.2 C (19.0 F)n/an/a
Jul34.4 C (93.9 F)-3.9 C (25.0 F)n/an/a
Aug35.6 C (96.1 F)-5.0 C (23.0 F)n/an/a
Sep32.2 C (90.0 F)-7.2 C (19.0 F)n/an/a
Oct28.9 C (84.0 F)-13.9 C (7.0 F)n/an/a
Nov21.7 C (71.1 F)-22.2 C (-8.0 F)n/an/a
Dec16.7 C (62.1 F)-31.1 C (-24.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Stillwater by the year they were set 1,464 records at Stillwater still stand. 1916 holds the most, with 62. 0204060801915: 11916: 621917: 251918: 451919: 251920: 391921: 351922: 291923: 351924: 151925: 291926: 201927: 431928: 261929: 211930: 241931: 201932: 291933: 351934: 431935: 221936: 331937: 321938: 301939: 311940: 181941: 221942: 381943: 291944: 371945: 271946: 291947: 331948: 341949: 331950: 311951: 361952: 141953: 371954: 271955: 181956: 241957: 171958: 191959: 331960: 151961: 131962: 121963: 101964: 91965: 81966: 151967: 151978: 171979: 451915192119271933193919451951195719631979
1,464 records at Stillwater still stand. 1916 holds the most, with 62.
Standing records at Stillwater by the year they were set
Year setStanding records
19151
191662
191725
191845
191925
192039
192135
192229
192335
192415
192529
192620
192743
192826
192921
193024
193120
193229
193335
193443
193522
193633
193732
193830
193931
194018
194122
194238
194329
194437
194527
194629
194733
194834
194933
195031
195136
195214
195337
195427
195518
195624
195717
195819
195933
196015
196113
196212
196310
19649
19658
196615
196715
197817
197945

Wettest Day of Each Month

Oct: 127.0 mm (5.0 in)
Record daily precipitation for each month at Stillwater The wettest day on record for each calendar month at Stillwater. The most was 127.0 mm (5.0 in) on 20 October 1927. 050100150 Jan: 81.3 mm (3.2 in), 6 January 1956 Jan Feb: 61.0 mm (2.4 in), 23 February 1944 Feb Mar: 57.7 mm (2.3 in), 8 March 1944 Mar Apr: 63.0 mm (2.5 in), 1 April 1925 Apr May: 100.8 mm (4.0 in), 4 May 1943 May Jun: 95.3 mm (3.8 in), 25 June 1960 Jun Jul: 88.4 mm (3.5 in), 7 July 1922 Jul Aug: 101.6 mm (4.0 in), 13 August 1924 Aug Sep: 86.4 mm (3.4 in), 14 September 1964 Sep Oct: 127.0 mm (5.0 in), 20 October 1927 Oct Nov: 86.4 mm (3.4 in), 6 November 1927 Nov Dec: 91.9 mm (3.6 in), 1 December 1926 Dec
The wettest day on record for each calendar month at Stillwater. The most was 127.0 mm (5.0 in) on 20 October 1927.
Record daily precipitation for each month at Stillwater
MonthRecord daily precipitation (mm)Date
Jan81.3 mm (3.2 in)6 January 1956
Feb61.0 mm (2.4 in)23 February 1944
Mar57.7 mm (2.3 in)8 March 1944
Apr63.0 mm (2.5 in)1 April 1925
May100.8 mm (4.0 in)4 May 1943
Jun95.3 mm (3.8 in)25 June 1960
Jul88.4 mm (3.5 in)7 July 1922
Aug101.6 mm (4.0 in)13 August 1924
Sep86.4 mm (3.4 in)14 September 1964
Oct127.0 mm (5.0 in)20 October 1927
Nov86.4 mm (3.4 in)6 November 1927
Dec91.9 mm (3.6 in)1 December 1926

Period of Record Coverage

1915 to 1979
Days with data per year at Stillwater 55 years of record at Stillwater, 1915 to 1979. 8 years have data for under 90 percent of days and are left out of rankings: 1915, 1957, 1962, 1963, 1964, 1967, 1978, 1979. 1915: 13 of 365 days1916: 366 of 366 days1917: 364 of 365 days1918: 364 of 365 days1919: 333 of 365 days1920: 366 of 366 days1921: 365 of 365 days1922: 365 of 365 days1923: 365 of 365 days1924: 366 of 366 days1925: 364 of 365 days1926: 364 of 365 days1927: 363 of 365 days1928: 364 of 366 days1929: 361 of 365 days1930: 362 of 365 days1931: 360 of 365 days1932: 365 of 366 days1933: 365 of 365 days1934: 365 of 365 days1935: 365 of 365 days1936: 366 of 366 days1937: 365 of 365 days1938: 364 of 365 days1939: 363 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 359 of 365 days1944: 365 of 366 days1945: 361 of 365 days1946: 365 of 365 days1947: 364 of 365 days1948: 358 of 366 days1949: 333 of 365 days1950: 364 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 335 of 365 days1955: 365 of 365 days1956: 347 of 366 days1957: 327 of 365 days1958: 364 of 365 days1959: 365 of 365 days1960: 359 of 366 days1961: 362 of 365 days1962: 210 of 365 days1963: 210 of 365 days1964: 303 of 366 days1965: 365 of 365 days1966: 352 of 365 days1967: 241 of 365 days1978: 272 of 365 days1979: 304 of 365 days19201930194019501960
55 years of record at Stillwater, 1915 to 1979. 8 years have data for under 90 percent of days and are left out of rankings: 1915, 1957, 1962, 1963, 1964, 1967, 1978, 1979.
Days with data per year at Stillwater
YearDays with dataShare of yearComplete
1915134%No
1916366100%Yes
1917364100%Yes
1918364100%Yes
191933391%Yes
1920366100%Yes
1921365100%Yes
1922365100%Yes
1923365100%Yes
1924366100%Yes
1925364100%Yes
1926364100%Yes
192736399%Yes
192836499%Yes
192936199%Yes
193036299%Yes
193136099%Yes
1932365100%Yes
1933365100%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938364100%Yes
193936399%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
194335998%Yes
1944365100%Yes
194536199%Yes
1946365100%Yes
1947364100%Yes
194835898%Yes
194933391%Yes
1950364100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
195433592%Yes
1955365100%Yes
195634795%Yes
195732790%No
1958364100%Yes
1959365100%Yes
196035998%Yes
196136299%Yes
196221058%No
196321058%No
196430383%No
1965365100%Yes
196635296%Yes
196724166%No
197827275%No
197930483%No

Latest Records

20
Latest records at Stillwater
DateStationRecordValueBeat old record byOld record stoodSignificance
22 October 1979Stillwater, CAdaily high min11.5 C (52.7 F)2.6 C (4.7 F)44 years23 of 100 (Routine)
22 October 1979Stillwater, CAdaily high max23.0 C (73.4 F)0.2 C (0.4 F)49 years20 of 100 (Routine)
6 October 1979Stillwater, CAdaily high min14.0 C (57.2 F)1.2 C (2.2 F)52 years23 of 100 (Routine)
5 August 1979Stillwater, CAdaily rain26.6 mm (1.0 in)3.2 mm (0.13 in)20 years14 of 100 (Routine)
5 August 1979Stillwater, CAdaily high min20.0 C (68.0 F)1.1 C (2.0 F)12 years11 of 100 (Routine)
4 August 1979Stillwater, CAdaily high min19.0 C (66.2 F)0.5 C (0.9 F)0 years7 of 100 (Routine)
3 August 1979Stillwater, CAdaily high min19.0 C (66.2 F)1.0 C (1.8 F)0 years8 of 100 (Routine)
2 August 1979Stillwater, CAdaily high min19.0 C (66.2 F)1.8 C (3.2 F)58 years26 of 100 (Routine)
30 July 1979Stillwater, CAdaily high min18.5 C (65.3 F)1.8 C (3.2 F)48 years24 of 100 (Routine)
29 July 1979Stillwater, CAdaily high min20.0 C (68.0 F)2.2 C (4.0 F)32 years20 of 100 (Routine)
28 July 1979Stillwater, CAdaily rain61.4 mm (2.4 in)32.7 mm (1.3 in)44 years47 of 100 (Notable)
28 July 1979Stillwater, CAdaily high min19.5 C (67.1 F)1.2 C (2.2 F)16 years13 of 100 (Routine)
27 July 1979Stillwater, CAdaily high min19.0 C (66.2 F)1.2 C (2.2 F)16 years13 of 100 (Routine)
18 July 1979Stillwater, CAdaily low max19.5 C (67.1 F)0.5 C (0.9 F)48 years21 of 100 (Routine)
25 June 1979Stillwater, CAdaily low max15.0 C (59.0 F)0.6 C (1.1 F)37 years18 of 100 (Routine)
24 June 1979Stillwater, CAdaily high min (Tie)13.5 C (56.3 F)tie0 years1 of 100 (Routine)
17 June 1979Stillwater, CAdaily high min (Tie)15.0 C (59.0 F)tie60 years6 of 100 (Routine)
16 June 1979Stillwater, CAdaily high max32.5 C (90.5 F)1.9 C (3.4 F)29 years18 of 100 (Routine)
12 June 1979Stillwater, CAdaily high min15.5 C (59.9 F)3.3 C (5.9 F)42 years26 of 100 (Routine)
10 June 1979Stillwater, CAdaily high min14.5 C (58.1 F)3.0 C (5.4 F)0 years13 of 100 (Routine)

Climate Trend

41 complete years, 1916 to 1965
Annual mean temperature at Stillwater as warming stripes, 1916 to 1965 One stripe for each of 41 complete years at Stillwater, 1916 to 1965. Blue stripes are years cooler than the station's own mean of 5.1 C (41.2 F); red stripes are warmer. The coolest year was 1916, at 3.6 C (38.5 F), and the warmest was 1951, at 7.2 C (45.0 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1916: 3.6 C, -1.5 C from the station mean1917: 4.3 C, -0.8 C from the station mean1918: 3.8 C, -1.3 C from the station mean1920: 4.6 C, -0.5 C from the station mean1921: 4.6 C, -0.5 C from the station mean1922: 4.4 C, -0.8 C from the station mean1923: 4.0 C, -1.1 C from the station mean1924: 4.8 C, -0.3 C from the station mean1925: 4.9 C, -0.2 C from the station mean1926: 4.1 C, -1.0 C from the station mean1927: 6.1 C, +1.0 C from the station mean1928: 5.4 C, +0.3 C from the station mean1929: 4.7 C, -0.4 C from the station mean1930: 5.4 C, +0.3 C from the station mean1931: 6.1 C, +1.0 C from the station mean1932: 5.0 C, -0.1 C from the station mean1933: 4.9 C, -0.2 C from the station mean1934: 4.2 C, -1.0 C from the station mean1935: 4.6 C, -0.5 C from the station mean1936: 4.9 C, -0.2 C from the station mean1937: 5.5 C, +0.4 C from the station mean1938: 4.9 C, -0.3 C from the station mean1939: 4.4 C, -0.7 C from the station mean1940: 4.4 C, -0.7 C from the station mean1941: 4.3 C, -0.8 C from the station mean1942: 5.2 C, +0.1 C from the station mean1943: 4.2 C, -0.9 C from the station mean1945: 5.5 C, +0.4 C from the station mean1946: 5.3 C, +0.2 C from the station mean1947: 5.6 C, +0.5 C from the station mean1950: 5.4 C, +0.2 C from the station mean1951: 7.2 C, +2.1 C from the station mean1952: 6.4 C, +1.3 C from the station mean1953: 7.1 C, +2.0 C from the station mean1955: 5.9 C, +0.8 C from the station mean1956: 5.4 C, +0.3 C from the station mean1958: 6.3 C, +1.2 C from the station mean1959: 5.3 C, +0.2 C from the station mean1960: 6.1 C, +1.0 C from the station mean1961: 5.5 C, +0.4 C from the station mean1965: 5.1 C, 0.0 C from the station mean19161920192519301935194019451950195519601965
One stripe for each of 41 complete years at Stillwater, 1916 to 1965. Blue stripes are years cooler than the station's own mean of 5.1 C (41.2 F); red stripes are warmer. The coolest year was 1916, at 3.6 C (38.5 F), and the warmest was 1951, at 7.2 C (45.0 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Stillwater as warming stripes, 1916 to 1965
YearAnnual mean temperatureDifference from the station mean
19163.6 C-1.48 C
19174.3 C-0.82 C
19183.8 C-1.31 C
19204.6 C-0.48 C
19214.6 C-0.49 C
19224.4 C-0.75 C
19234.0 C-1.12 C
19244.8 C-0.31 C
19254.9 C-0.23 C
19264.1 C-0.97 C
19276.1 C+0.99 C
19285.4 C+0.29 C
19294.7 C-0.38 C
19305.4 C+0.30 C
19316.1 C+0.96 C
19325.0 C-0.08 C
19334.9 C-0.19 C
19344.2 C-0.95 C
19354.6 C-0.50 C
19364.9 C-0.16 C
19375.5 C+0.44 C
19384.9 C-0.25 C
19394.4 C-0.72 C
19404.4 C-0.73 C
19414.3 C-0.80 C
19425.2 C+0.08 C
19434.2 C-0.94 C
19455.5 C+0.43 C
19465.3 C+0.24 C
19475.6 C+0.48 C
19505.4 C+0.25 C
19517.2 C+2.10 C
19526.4 C+1.33 C
19537.1 C+1.96 C
19555.9 C+0.79 C
19565.4 C+0.27 C
19586.3 C+1.24 C
19595.3 C+0.20 C
19606.1 C+1.04 C
19615.5 C+0.36 C
19655.1 C-0.01 C

The annual mean temperature here has risen by 0.4 C (0.2 to 0.5) per decade over 1916 to 1965. In Fahrenheit: 0.7 F (0.4 to 1.0) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Stillwater
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.4 C (0.2 to 0.5) per decade0.7 F (0.4 to 1.0) per decade1916 to 196541Rise
Mean daily maximum0.3 C (0.2 to 0.5) per decade0.6 F (0.3 to 0.8) per decade1916 to 196541Rise
Mean daily minimum0.4 C (0.2 to 0.6) per decade0.8 F (0.4 to 1.1) per decade1916 to 196541Rise

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

1915 to 1979
Yearly extremes at Stillwater: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.6 C (96.1 F)193530.6 C (87.1 F)55
Coldest night (TNn)-40.0 C (-40.0 F)1934-29.4 C (-20.9 F)55
Wettest day (Rx1day)127.0 mm (5.0 in)192768.8 mm (2.7 in)55
Wettest five days (Rx5day)209.1 mm (8.2 in)192899.6 mm (3.9 in)55
Longest dry spell (CDD)22 days192114 days55

Hottest day (TXx)

Hottest day (TXx) at Stillwater by year The hottest day of the year at Stillwater, 1915 to 1979. The record is 35.6 C (96.1 F) in 1935, marked on the chart; the median year is 30.6 C (87.1 F). 10203040192019401960Record: 35.6 C (96.1 F) in 1935
The hottest day of the year at Stillwater, 1915 to 1979. The record is 35.6 C (96.1 F) in 1935, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Stillwater by year
YearHottest day (TXx)
191510.6 C (51.1 F)
191629.4 C (84.9 F)
191728.3 C (82.9 F)
191831.7 C (89.1 F)
191928.3 C (82.9 F)
192030.6 C (87.1 F)
192131.1 C (88.0 F)
192231.1 C (88.0 F)
192330.6 C (87.1 F)
192430.0 C (86.0 F)
192529.4 C (84.9 F)
192631.1 C (88.0 F)
192729.4 C (84.9 F)
192833.3 C (91.9 F)
192930.6 C (87.1 F)
193030.0 C (86.0 F)
193129.4 C (84.9 F)
193228.9 C (84.0 F)
193330.6 C (87.1 F)
193427.8 C (82.0 F)
193535.6 C (96.1 F)
193628.3 C (82.9 F)
193731.7 C (89.1 F)
193830.6 C (87.1 F)
193932.2 C (90.0 F)
194032.2 C (90.0 F)
194134.4 C (93.9 F)
194232.8 C (91.0 F)
194332.2 C (90.0 F)
194435.0 C (95.0 F)
194532.2 C (90.0 F)
194633.3 C (91.9 F)
194735.6 C (96.1 F)
194830.6 C (87.1 F)
194933.3 C (91.9 F)
195030.6 C (87.1 F)
195128.9 C (84.0 F)
195232.8 C (91.0 F)
195330.0 C (86.0 F)
195430.6 C (87.1 F)
195531.7 C (89.1 F)
195627.8 C (82.0 F)
195728.9 C (84.0 F)
195829.4 C (84.9 F)
195930.0 C (86.0 F)
196031.1 C (88.0 F)
196130.0 C (86.0 F)
196227.2 C (81.0 F)
196334.4 C (93.9 F)
196427.8 C (82.0 F)
196531.1 C (88.0 F)
196629.4 C (84.9 F)
196732.8 C (91.0 F)
197829.5 C (85.1 F)
197932.5 C (90.5 F)

Coldest night (TNn)

Coldest night (TNn) at Stillwater by year The coldest night of the year at Stillwater, 1915 to 1979. The record is -40.0 C (-40.0 F) in 1934, marked on the chart; the median year is -29.4 C (-20.9 F). -40-30-20-10192019401960Record: -40.0 C (-40.0 F) in 1934
The coldest night of the year at Stillwater, 1915 to 1979. The record is -40.0 C (-40.0 F) in 1934, marked on the chart; the median year is -29.4 C (-20.9 F).
Coldest night (TNn) at Stillwater by year
YearColdest night (TNn)
1915-19.4 C (-2.9 F)
1916-33.9 C (-29.0 F)
1917-34.4 C (-29.9 F)
1918-32.8 C (-27.0 F)
1919-31.1 C (-24.0 F)
1920-35.6 C (-32.1 F)
1921-32.2 C (-26.0 F)
1922-34.4 C (-29.9 F)
1923-33.3 C (-27.9 F)
1924-28.9 C (-20.0 F)
1925-34.4 C (-29.9 F)
1926-30.6 C (-23.1 F)
1927-27.8 C (-18.0 F)
1928-32.8 C (-27.0 F)
1929-30.6 C (-23.1 F)
1930-31.1 C (-24.0 F)
1931-28.9 C (-20.0 F)
1932-30.0 C (-22.0 F)
1933-31.1 C (-24.0 F)
1934-40.0 C (-40.0 F)
1935-31.1 C (-24.0 F)
1936-28.9 C (-20.0 F)
1937-29.4 C (-20.9 F)
1938-32.8 C (-27.0 F)
1939-29.4 C (-20.9 F)
1940-27.8 C (-18.0 F)
1941-27.2 C (-17.0 F)
1942-30.6 C (-23.1 F)
1943-31.1 C (-24.0 F)
1944-29.4 C (-20.9 F)
1945-30.6 C (-23.1 F)
1946-27.2 C (-17.0 F)
1947-26.7 C (-16.1 F)
1948-32.8 C (-27.0 F)
1949-27.2 C (-17.0 F)
1950-29.4 C (-20.9 F)
1951-27.2 C (-17.0 F)
1952-25.0 C (-13.0 F)
1953-17.2 C (1.0 F)
1954-29.4 C (-20.9 F)
1955-30.6 C (-23.1 F)
1956-26.7 C (-16.1 F)
1957-30.6 C (-23.1 F)
1958-27.8 C (-18.0 F)
1959-27.2 C (-17.0 F)
1960-23.9 C (-11.0 F)
1961-34.4 C (-29.9 F)
1962-26.7 C (-16.1 F)
1963-18.9 C (-2.0 F)
1964-26.1 C (-15.0 F)
1965-27.8 C (-18.0 F)
1966-31.7 C (-25.1 F)
1967-31.7 C (-25.1 F)
1978-23.0 C (-9.4 F)
1979-24.0 C (-11.2 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Stillwater by year The wettest day of the year at Stillwater, 1915 to 1979. The record is 127.0 mm (5.0 in) in 1927, marked on the chart; the median year is 68.8 mm (2.7 in). 255075100125150192019401960Record: 127.0 mm (5.0 in) in 1927
The wettest day of the year at Stillwater, 1915 to 1979. The record is 127.0 mm (5.0 in) in 1927, marked on the chart; the median year is 68.8 mm (2.7 in).
Wettest day (Rx1day) at Stillwater by year
YearWettest day (Rx1day)
191541.7 mm (1.6 in)
191645.5 mm (1.8 in)
191745.2 mm (1.8 in)
191868.8 mm (2.7 in)
191977.5 mm (3.1 in)
192070.1 mm (2.8 in)
192167.3 mm (2.6 in)
192288.4 mm (3.5 in)
192391.2 mm (3.6 in)
1924101.6 mm (4.0 in)
192563.0 mm (2.5 in)
192691.9 mm (3.6 in)
1927127.0 mm (5.0 in)
1928114.6 mm (4.5 in)
192964.8 mm (2.6 in)
193071.1 mm (2.8 in)
193173.2 mm (2.9 in)
193245.2 mm (1.8 in)
193384.3 mm (3.3 in)
193475.9 mm (3.0 in)
193560.5 mm (2.4 in)
193682.8 mm (3.3 in)
193781.3 mm (3.2 in)
193866.5 mm (2.6 in)
193947.5 mm (1.9 in)
194091.2 mm (3.6 in)
194164.0 mm (2.5 in)
194247.2 mm (1.9 in)
1943100.8 mm (4.0 in)
194463.5 mm (2.5 in)
194559.4 mm (2.3 in)
194680.0 mm (3.1 in)
194781.8 mm (3.2 in)
194868.6 mm (2.7 in)
194966.8 mm (2.6 in)
195035.3 mm (1.4 in)
195148.8 mm (1.9 in)
195266.0 mm (2.6 in)
195350.0 mm (2.0 in)
195462.0 mm (2.4 in)
195554.6 mm (2.1 in)
195681.3 mm (3.2 in)
195736.3 mm (1.4 in)
195869.1 mm (2.7 in)
195972.6 mm (2.9 in)
196095.3 mm (3.8 in)
196178.7 mm (3.1 in)
196239.6 mm (1.6 in)
196377.5 mm (3.1 in)
196486.4 mm (3.4 in)
196576.2 mm (3.0 in)
196660.5 mm (2.4 in)
196744.7 mm (1.8 in)
1978109.6 mm (4.3 in)
197961.4 mm (2.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Stillwater by year The wettest five days of the year at Stillwater, 1915 to 1979. The record is 209.1 mm (8.2 in) in 1928, marked on the chart; the median year is 99.6 mm (3.9 in). 50100150200250192019401960Record: 209.1 mm (8.2 in) in 1928
The wettest five days of the year at Stillwater, 1915 to 1979. The record is 209.1 mm (8.2 in) in 1928, marked on the chart; the median year is 99.6 mm (3.9 in).
Wettest five days (Rx5day) at Stillwater by year
YearWettest five days (Rx5day)
191574.2 mm (2.9 in)
191670.4 mm (2.8 in)
1917100.3 mm (3.9 in)
1918103.1 mm (4.1 in)
1919144.6 mm (5.7 in)
192098.0 mm (3.9 in)
192198.8 mm (3.9 in)
1922137.6 mm (5.4 in)
1923113.3 mm (4.5 in)
1924176.2 mm (6.9 in)
1925101.1 mm (4.0 in)
1926121.9 mm (4.8 in)
1927153.1 mm (6.0 in)
1928209.1 mm (8.2 in)
1929132.0 mm (5.2 in)
1930101.1 mm (4.0 in)
193192.8 mm (3.7 in)
193269.9 mm (2.8 in)
1933165.3 mm (6.5 in)
1934102.6 mm (4.0 in)
193588.2 mm (3.5 in)
1936101.9 mm (4.0 in)
1937153.9 mm (6.1 in)
193893.8 mm (3.7 in)
193988.4 mm (3.5 in)
194093.2 mm (3.7 in)
194197.3 mm (3.8 in)
1942111.6 mm (4.4 in)
1943145.5 mm (5.7 in)
194480.5 mm (3.2 in)
194596.8 mm (3.8 in)
1946100.8 mm (4.0 in)
1947113.2 mm (4.5 in)
1948117.0 mm (4.6 in)
194996.2 mm (3.8 in)
195063.3 mm (2.5 in)
195182.3 mm (3.2 in)
195299.5 mm (3.9 in)
195380.3 mm (3.2 in)
195498.4 mm (3.9 in)
195573.7 mm (2.9 in)
1956128.6 mm (5.1 in)
195759.7 mm (2.4 in)
1958125.3 mm (4.9 in)
1959100.4 mm (4.0 in)
196095.3 mm (3.8 in)
1961121.1 mm (4.8 in)
196276.7 mm (3.0 in)
196362.7 mm (2.5 in)
196489.9 mm (3.5 in)
196599.6 mm (3.9 in)
196692.2 mm (3.6 in)
196764.1 mm (2.5 in)
1978121.6 mm (4.8 in)
1979137.6 mm (5.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Stillwater by year The longest dry spell of the year at Stillwater, 1915 to 1979. The record is 22 days in 1921, marked on the chart; the median year is 14 days. 0510152025192019401960Record: 22 days in 1921
The longest dry spell of the year at Stillwater, 1915 to 1979. The record is 22 days in 1921, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Stillwater by year
YearLongest dry spell (CDD)
19153 days
191610 days
191712 days
191810 days
191911 days
192017 days
192122 days
192215 days
192315 days
192414 days
192510 days
192611 days
192715 days
192811 days
192914 days
193018 days
193115 days
193211 days
19339 days
193415 days
193515 days
19369 days
193715 days
193817 days
193918 days
194011 days
194115 days
194215 days
194312 days
194418 days
194514 days
194614 days
194720 days
194810 days
194915 days
195016 days
195112 days
195212 days
195316 days
195416 days
195513 days
195615 days
195711 days
195814 days
195915 days
196020 days
196118 days
196210 days
196312 days
196410 days
196512 days
196613 days
196713 days
197816 days
197912 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

41 years with a frost

Across 41 years with a frost, the median last spring frost at Stillwater falls on 17 June and the median first autumn frost on 8 September, which leaves a median of 84 days between them.

Fitted over all years, the growing season changes by +7.3 days per decade at this station.

Frost dates and growing season at Stillwater
MeasureMedian, all yearsEarliest periodRecent period (1928 to 1965)Recent against earliestFitted trend
Last spring frost17 Junen/a17 Junen/a-0.2 days per decade
First autumn frost8 Septembern/a11 Septembern/a+7.1 days per decade
Growing days84 daysn/a86 daysn/a+7.3 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

41 years, 1916 to 1960

A day with at least 69.3 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 128.5 mm (5.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Stillwater: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years69.3 mm (2.7 in)
5 years87.4 mm (3.4 in)
10 years98.5 mm (3.9 in)
25 years111.4 mm (4.4 in)
50 years120.3 mm (4.7 in)Longer than the 41 years of record
100 years128.5 mm (5.1 in)Longer than the 41 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, 41 years of values from 1916 to 1960.

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: 127.0 mm (5.0 in) in 1927; 114.6 mm (4.5 in) in 1928; 101.6 mm (4.0 in) in 1924.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Stillwater, at 1951. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1951 ran 0.5 C (0.8 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Stillwater, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1951+0.5+0.8likely5

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.

Download the Data

  • Data for Stillwater standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Stillwater 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

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