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St Margaret's Bay Weather Records (CA008204800)

Record envelope, standing records and threshold days for St Margaret's Bay (CA008204800), Nova Scotia, Canada, with 100 years of record.

Key Facts for St Margaret's Bay

  • St Margaret's Bay (CA008204800) is a weather station in Nova Scotia, Canada at 44.70 latitude and -63.90 longitude, 17 m (56 ft) above sea level.
  • The station reports from 1922 to 2021, 100 years of record.
  • 1,464 records set at St Margaret's Bay still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • St Margaret's Bay set a daily record low maximum temperature of -10.0 C (14.0 F) on 25 December 1983.

About the Station

  • Location: Nova Scotia, Canada, 44.70 latitude, -63.90 longitude.
  • Elevation: 17 m (56 ft).
  • Period of record: 1922 to 2021, 100 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 St Margaret's Bay, with 2026 drawn through them The band shows the record high and record low for each calendar day at St Margaret's Bay. 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 St Margaret's Bay. 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 St Margaret's Bay, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan14.0 C (57.2 F)-32.8 C (-27.0 F)n/an/a
Feb13.0 C (55.4 F)-31.7 C (-25.1 F)n/an/a
Mar22.8 C (73.0 F)-27.8 C (-18.0 F)n/an/a
Apr27.2 C (81.0 F)-22.2 C (-8.0 F)n/an/a
May31.7 C (89.1 F)-7.2 C (19.0 F)n/an/a
Jun34.4 C (93.9 F)-1.7 C (28.9 F)n/an/a
Jul33.9 C (93.0 F)1.1 C (34.0 F)n/an/a
Aug34.4 C (93.9 F)0.0 C (32.0 F)n/an/a
Sep33.9 C (93.0 F)-3.9 C (25.0 F)n/an/a
Oct30.6 C (87.1 F)-10.0 C (14.0 F)n/an/a
Nov23.9 C (75.0 F)-16.1 C (3.0 F)n/an/a
Dec16.7 C (62.1 F)-27.0 C (-16.6 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at St Margaret's Bay by the year they were set 1,464 records at St Margaret's Bay still stand. 1923 holds the most, with 51. 02040601922: 201923: 511924: 191925: 291926: 241927: 321928: 341929: 271930: 281931: 241932: 171933: 391934: 371935: 231936: 281937: 211938: 151939: 151940: 251941: 71942: 181943: 281944: 221945: 281946: 301947: 301948: 251949: 261950: 371951: 361952: 181953: 361954: 351955: 181956: 301957: 251958: 221959: 261960: 121961: 251962: 111963: 111964: 181965: 251966: 171967: 211968: 251969: 181970: 201971: 211972: 171973: 131974: 141975: 161976: 231977: 131978: 281979: 331980: 161981: 221982: 201983: 20192219291936194319501957196419711978
1,464 records at St Margaret's Bay still stand. 1923 holds the most, with 51.
Standing records at St Margaret's Bay by the year they were set
Year setStanding records
192220
192351
192419
192529
192624
192732
192834
192927
193028
193124
193217
193339
193437
193523
193628
193721
193815
193915
194025
19417
194218
194328
194422
194528
194630
194730
194825
194926
195037
195136
195218
195336
195435
195518
195630
195725
195822
195926
196012
196125
196211
196311
196418
196525
196617
196721
196825
196918
197020
197121
197217
197313
197414
197516
197623
197713
197828
197933
198016
198122
198220
198320

Wettest Day of Each Month

Sep: 132.1 mm (5.2 in)
Record daily precipitation for each month at St Margaret's Bay The wettest day on record for each calendar month at St Margaret's Bay. The most was 132.1 mm (5.2 in) on 22 September 1942. 050100150 Jan: 113.0 mm (4.4 in), 9 January 1956 Jan Feb: 78.7 mm (3.1 in), 25 February 1965 Feb Mar: 69.9 mm (2.8 in), 23 March 1972 Mar Apr: 92.7 mm (3.6 in), 8 April 1962 Apr May: 113.5 mm (4.5 in), 1 May 1947 May Jun: 61.0 mm (2.4 in), 19 June 1959 Jun Jul: 118.1 mm (4.6 in), 22 July 1964 Jul Aug: 124.5 mm (4.9 in), 15 August 1971 Aug Sep: 132.1 mm (5.2 in), 22 September 1942 Sep Oct: 82.8 mm (3.3 in), 24 October 1961 Oct Nov: 68.6 mm (2.7 in), 6 November 1945 Nov Dec: 74.4 mm (2.9 in), 22 December 1946 Dec
The wettest day on record for each calendar month at St Margaret's Bay. The most was 132.1 mm (5.2 in) on 22 September 1942.
Record daily precipitation for each month at St Margaret's Bay
MonthRecord daily precipitation (mm)Date
Jan113.0 mm (4.4 in)9 January 1956
Feb78.7 mm (3.1 in)25 February 1965
Mar69.9 mm (2.8 in)23 March 1972
Apr92.7 mm (3.6 in)8 April 1962
May113.5 mm (4.5 in)1 May 1947
Jun61.0 mm (2.4 in)19 June 1959
Jul118.1 mm (4.6 in)22 July 1964
Aug124.5 mm (4.9 in)15 August 1971
Sep132.1 mm (5.2 in)22 September 1942
Oct82.8 mm (3.3 in)24 October 1961
Nov68.6 mm (2.7 in)6 November 1945
Dec74.4 mm (2.9 in)22 December 1946

Period of Record Coverage

1922 to 1983
Days with data per year at St Margaret's Bay 62 years of record at St Margaret's Bay, 1922 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1922. 1922: 275 of 365 days1923: 364 of 365 days1924: 364 of 366 days1925: 364 of 365 days1926: 365 of 365 days1927: 364 of 365 days1928: 366 of 366 days1929: 365 of 365 days1930: 364 of 365 days1931: 364 of 365 days1932: 366 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: 365 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 363 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 363 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 365 of 366 days1953: 364 of 365 days1954: 364 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 364 of 365 days1958: 365 of 365 days1959: 360 of 365 days1960: 365 of 366 days1961: 364 of 365 days1962: 365 of 365 days1963: 334 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 365 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 364 of 365 days1972: 366 of 366 days1973: 363 of 365 days1974: 365 of 365 days1975: 353 of 365 days1976: 361 of 366 days1977: 365 of 365 days1978: 364 of 365 days1979: 365 of 365 days1980: 364 of 366 days1981: 363 of 365 days1982: 362 of 365 days1983: 357 of 365 days193019401950196019701980
62 years of record at St Margaret's Bay, 1922 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1922.
Days with data per year at St Margaret's Bay
YearDays with dataShare of yearComplete
192227575%No
1923364100%Yes
192436499%Yes
1925364100%Yes
1926365100%Yes
1927364100%Yes
1928366100%Yes
1929365100%Yes
1930364100%Yes
1931364100%Yes
1932366100%Yes
1933365100%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938364100%Yes
1939365100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
194536399%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
194936399%Yes
1950365100%Yes
1951365100%Yes
1952365100%Yes
1953364100%Yes
1954364100%Yes
1955365100%Yes
1956366100%Yes
1957364100%Yes
1958365100%Yes
195936099%Yes
1960365100%Yes
1961364100%Yes
1962365100%Yes
196333492%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968365100%Yes
1969365100%Yes
1970365100%Yes
1971364100%Yes
1972366100%Yes
197336399%Yes
1974365100%Yes
197535397%Yes
197636199%Yes
1977365100%Yes
1978364100%Yes
1979365100%Yes
198036499%Yes
198136399%Yes
198236299%Yes
198335798%Yes

Latest Records

20
Latest records at St Margaret's Bay
DateStationRecordValueBeat old record byOld record stoodSignificance
25 December 1983St Margaret's Bay, CAdaily low max-10.0 C (14.0 F)0.6 C (1.1 F)24 years14 of 100 (Routine)
24 December 1983St Margaret's Bay, CAdaily snowfall34.0 cm (13.4 in)3.5 cm (1.4 in)12 years14 of 100 (Routine)
16 December 1983St Margaret's Bay, CAdaily high min7.0 C (44.6 F)3.1 C (5.6 F)14 years14 of 100 (Routine)
14 December 1983St Margaret's Bay, CAdaily high min6.5 C (43.7 F)2.1 C (3.8 F)60 years27 of 100 (Routine)
14 December 1983St Margaret's Bay, CAdaily high max14.5 C (58.1 F)2.3 C (4.1 F)29 years18 of 100 (Routine)
13 December 1983St Margaret's Bay, CAdaily high max14.0 C (57.2 F)0.1 C (0.2 F)24 years13 of 100 (Routine)
16 November 1983St Margaret's Bay, CAdaily rain52.0 mm (2.0 in)8.8 mm (0.35 in)24 years20 of 100 (Routine)
12 November 1983St Margaret's Bay, CAdaily high max15.0 C (59.0 F)1.0 C (1.8 F)0 years8 of 100 (Routine)
11 November 1983St Margaret's Bay, CAdaily rain27.6 mm (1.1 in)2.2 mm (0.09 in)49 years21 of 100 (Routine)
14 October 1983St Margaret's Bay, CAdaily high min16.0 C (60.8 F)6.0 C (10.8 F)49 years32 of 100 (Routine)
13 October 1983St Margaret's Bay, CAdaily rain37.8 mm (1.5 in)23.8 mm (0.9 in)4 years24 of 100 (Routine)
3 October 1983St Margaret's Bay, CAdaily high max23.0 C (73.4 F)0.2 C (0.4 F)60 years24 of 100 (Routine)
30 September 1983St Margaret's Bay, CAdaily high max26.0 C (78.8 F)3.2 C (5.8 F)36 years26 of 100 (Routine)
21 September 1983St Margaret's Bay, CAdaily high min16.0 C (60.8 F)1.0 C (1.8 F)38 years19 of 100 (Routine)
31 August 1983St Margaret's Bay, CAdaily rain65.2 mm (2.6 in)51.2 mm (2.0 in)48 years55 of 100 (Notable)
12 August 1983St Margaret's Bay, CAdaily low max14.0 C (57.2 F)1.6 C (2.9 F)60 years29 of 100 (Routine)
12 August 1983St Margaret's Bay, CAdaily rain33.0 mm (1.3 in)3.8 mm (0.15 in)50 years23 of 100 (Routine)
6 August 1983St Margaret's Bay, CAdaily rain49.0 mm (1.9 in)13.4 mm (0.5 in)44 years28 of 100 (Routine)
11 July 1983St Margaret's Bay, CAdaily low min4.0 C (39.2 F)1.6 C (2.9 F)40 years23 of 100 (Routine)
23 June 1983St Margaret's Bay, CAdaily high max34.0 C (93.2 F)1.2 C (2.2 F)8 years10 of 100 (Routine)

Climate Trend

60 complete years, 1923 to 1983
Annual mean temperature at St Margaret's Bay as warming stripes, 1923 to 1983 One stripe for each of 60 complete years at St Margaret's Bay, 1923 to 1983. Blue stripes are years cooler than the station's own mean of 6.0 C (42.7 F); red stripes are warmer. The coolest year was 1923, at 4.6 C (40.3 F), and the warmest was 1951, at 7.5 C (45.5 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1923: 4.6 C, -1.4 C from the station mean1924: 5.9 C, -0.1 C from the station mean1925: 5.8 C, -0.1 C from the station mean1926: 5.3 C, -0.7 C from the station mean1927: 6.0 C, +0.1 C from the station mean1928: 6.1 C, +0.1 C from the station mean1929: 5.6 C, -0.4 C from the station mean1930: 6.1 C, +0.1 C from the station mean1931: 7.0 C, +1.0 C from the station mean1932: 6.1 C, +0.1 C from the station mean1933: 5.6 C, -0.4 C from the station mean1934: 5.3 C, -0.7 C from the station mean1935: 5.3 C, -0.7 C from the station mean1936: 5.8 C, -0.2 C from the station mean1937: 6.3 C, +0.3 C from the station mean1938: 5.9 C, -0.1 C from the station mean1939: 5.4 C, -0.5 C from the station mean1940: 4.6 C, -1.4 C from the station mean1941: 5.3 C, -0.7 C from the station mean1942: 6.0 C, 0.0 C from the station mean1943: 5.5 C, -0.5 C from the station mean1944: 6.2 C, +0.2 C from the station mean1945: 6.0 C, 0.0 C from the station mean1946: 5.9 C, -0.1 C from the station mean1947: 6.7 C, +0.7 C from the station mean1948: 5.2 C, -0.8 C from the station mean1949: 7.1 C, +1.1 C from the station mean1950: 6.2 C, +0.3 C from the station mean1951: 7.5 C, +1.5 C from the station mean1952: 7.0 C, +1.0 C from the station mean1953: 7.3 C, +1.4 C from the station mean1954: 7.0 C, +1.1 C from the station mean1955: 6.4 C, +0.5 C from the station mean1956: 6.0 C, 0.0 C from the station mean1957: 6.2 C, +0.2 C from the station mean1958: 6.5 C, +0.5 C from the station mean1959: 6.2 C, +0.2 C from the station mean1960: 6.5 C, +0.5 C from the station mean1961: 6.1 C, +0.1 C from the station mean1962: 5.5 C, -0.4 C from the station mean1964: 5.4 C, -0.6 C from the station mean1965: 5.0 C, -1.0 C from the station mean1966: 6.2 C, +0.3 C from the station mean1967: 5.3 C, -0.7 C from the station mean1968: 5.9 C, -0.1 C from the station mean1969: 6.9 C, +0.9 C from the station mean1970: 5.6 C, -0.3 C from the station mean1971: 5.8 C, -0.2 C from the station mean1972: 5.2 C, -0.7 C from the station mean1973: 6.3 C, +0.3 C from the station mean1974: 5.4 C, -0.6 C from the station mean1975: 5.8 C, -0.2 C from the station mean1976: 6.3 C, +0.4 C from the station mean1977: 6.2 C, +0.2 C from the station mean1978: 5.4 C, -0.5 C from the station mean1979: 6.8 C, +0.8 C from the station mean1980: 5.2 C, -0.8 C from the station mean1981: 6.7 C, +0.7 C from the station mean1982: 5.5 C, -0.5 C from the station mean1983: 6.8 C, +0.8 C from the station mean1923193019401950196019701980
One stripe for each of 60 complete years at St Margaret's Bay, 1923 to 1983. Blue stripes are years cooler than the station's own mean of 6.0 C (42.7 F); red stripes are warmer. The coolest year was 1923, at 4.6 C (40.3 F), and the warmest was 1951, at 7.5 C (45.5 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at St Margaret's Bay as warming stripes, 1923 to 1983
YearAnnual mean temperatureDifference from the station mean
19234.6 C-1.37 C
19245.9 C-0.10 C
19255.8 C-0.14 C
19265.3 C-0.65 C
19276.0 C+0.07 C
19286.1 C+0.11 C
19295.6 C-0.42 C
19306.1 C+0.14 C
19317.0 C+1.05 C
19326.1 C+0.10 C
19335.6 C-0.41 C
19345.3 C-0.68 C
19355.3 C-0.72 C
19365.8 C-0.19 C
19376.3 C+0.31 C
19385.9 C-0.12 C
19395.4 C-0.53 C
19404.6 C-1.35 C
19415.3 C-0.65 C
19426.0 C+0.03 C
19435.5 C-0.51 C
19446.2 C+0.22 C
19456.0 C+0.01 C
19465.9 C-0.09 C
19476.7 C+0.72 C
19485.2 C-0.75 C
19497.1 C+1.14 C
19506.2 C+0.26 C
19517.5 C+1.53 C
19527.0 C+1.00 C
19537.3 C+1.37 C
19547.0 C+1.06 C
19556.4 C+0.46 C
19566.0 C-0.02 C
19576.2 C+0.23 C
19586.5 C+0.54 C
19596.2 C+0.22 C
19606.5 C+0.48 C
19616.1 C+0.08 C
19625.5 C-0.43 C
19645.4 C-0.60 C
19655.0 C-0.98 C
19666.2 C+0.26 C
19675.3 C-0.69 C
19685.9 C-0.09 C
19696.9 C+0.89 C
19705.6 C-0.34 C
19715.8 C-0.21 C
19725.2 C-0.74 C
19736.3 C+0.28 C
19745.4 C-0.60 C
19755.8 C-0.22 C
19766.3 C+0.37 C
19776.2 C+0.21 C
19785.4 C-0.54 C
19796.8 C+0.78 C
19805.2 C-0.80 C
19816.7 C+0.74 C
19825.5 C-0.48 C
19836.8 C+0.83 C

The fitted trend in annual mean temperature here over 1923 to 1983 is 0.05 C (-0.04 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 60 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at St Margaret's Bay
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.05 C (-0.04 to 0.14) per decade0.1 F (-0.1 to 0.3) per decade1923 to 198360Not clearly different from zero
Mean daily maximum0.01 C (-0.08 to 0.11) per decade0.02 F (-0.15 to 0.19) per decade1923 to 198360Not clearly different from zero
Mean daily minimum0.09 C (-0.03 to 0.20) per decade0.2 F (-0.1 to 0.4) per decade1923 to 198360Not 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

1922 to 1983
Yearly extremes at St Margaret's Bay: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)34.4 C (93.9 F)192530.0 C (86.0 F)62
Coldest night (TNn)-32.8 C (-27.0 F)1925-24.7 C (-12.5 F)62
Wettest day (Rx1day)132.1 mm (5.2 in)194266.9 mm (2.6 in)62
Wettest five days (Rx5day)269.7 mm (10.6 in)195696.5 mm (3.8 in)62
Longest dry spell (CDD)28 days197415 days62

Hottest day (TXx)

Hottest day (TXx) at St Margaret's Bay by year The hottest day of the year at St Margaret's Bay, 1922 to 1983. The record is 34.4 C (93.9 F) in 1925, marked on the chart; the median year is 30.0 C (86.0 F). 262830323436194019601980Record: 34.4 C (93.9 F) in 1925
The hottest day of the year at St Margaret's Bay, 1922 to 1983. The record is 34.4 C (93.9 F) in 1925, marked on the chart; the median year is 30.0 C (86.0 F).
Hottest day (TXx) at St Margaret's Bay by year
YearHottest day (TXx)
192228.9 C (84.0 F)
192330.0 C (86.0 F)
192431.7 C (89.1 F)
192534.4 C (93.9 F)
192632.2 C (90.0 F)
192729.4 C (84.9 F)
192834.4 C (93.9 F)
192931.1 C (88.0 F)
193032.8 C (91.0 F)
193132.2 C (90.0 F)
193228.3 C (82.9 F)
193330.0 C (86.0 F)
193427.8 C (82.0 F)
193531.1 C (88.0 F)
193630.6 C (87.1 F)
193731.1 C (88.0 F)
193829.4 C (84.9 F)
193930.6 C (87.1 F)
194031.7 C (89.1 F)
194132.2 C (90.0 F)
194230.0 C (86.0 F)
194331.7 C (89.1 F)
194431.7 C (89.1 F)
194533.9 C (93.0 F)
194630.0 C (86.0 F)
194730.0 C (86.0 F)
194828.3 C (82.9 F)
194930.6 C (87.1 F)
195030.6 C (87.1 F)
195129.4 C (84.9 F)
195230.0 C (86.0 F)
195331.7 C (89.1 F)
195430.0 C (86.0 F)
195530.0 C (86.0 F)
195630.0 C (86.0 F)
195731.7 C (89.1 F)
195828.9 C (84.0 F)
195930.0 C (86.0 F)
196031.7 C (89.1 F)
196129.4 C (84.9 F)
196227.2 C (81.0 F)
196330.6 C (87.1 F)
196429.4 C (84.9 F)
196529.4 C (84.9 F)
196628.3 C (82.9 F)
196727.2 C (81.0 F)
196833.3 C (91.9 F)
196931.7 C (89.1 F)
197029.4 C (84.9 F)
197128.9 C (84.0 F)
197227.8 C (82.0 F)
197333.9 C (93.0 F)
197430.0 C (86.0 F)
197532.8 C (91.0 F)
197630.6 C (87.1 F)
197729.4 C (84.9 F)
197831.1 C (88.0 F)
197932.5 C (90.5 F)
198030.0 C (86.0 F)
198130.0 C (86.0 F)
198229.0 C (84.2 F)
198334.0 C (93.2 F)

Coldest night (TNn)

Coldest night (TNn) at St Margaret's Bay by year The coldest night of the year at St Margaret's Bay, 1922 to 1983. The record is -32.8 C (-27.0 F) in 1925, marked on the chart; the median year is -24.7 C (-12.5 F). -35-30-25-20-15194019601980Record: -32.8 C (-27.0 F) in 1925
The coldest night of the year at St Margaret's Bay, 1922 to 1983. The record is -32.8 C (-27.0 F) in 1925, marked on the chart; the median year is -24.7 C (-12.5 F).
Coldest night (TNn) at St Margaret's Bay by year
YearColdest night (TNn)
1922-25.6 C (-14.1 F)
1923-30.6 C (-23.1 F)
1924-23.9 C (-11.0 F)
1925-32.8 C (-27.0 F)
1926-26.7 C (-16.1 F)
1927-21.1 C (-6.0 F)
1928-31.7 C (-25.1 F)
1929-26.7 C (-16.1 F)
1930-25.0 C (-13.0 F)
1931-23.3 C (-9.9 F)
1932-23.3 C (-9.9 F)
1933-25.0 C (-13.0 F)
1934-31.7 C (-25.1 F)
1935-30.0 C (-22.0 F)
1936-23.3 C (-9.9 F)
1937-23.9 C (-11.0 F)
1938-23.3 C (-9.9 F)
1939-20.6 C (-5.1 F)
1940-23.9 C (-11.0 F)
1941-23.3 C (-9.9 F)
1942-24.4 C (-11.9 F)
1943-26.1 C (-15.0 F)
1944-21.7 C (-7.1 F)
1945-25.0 C (-13.0 F)
1946-27.2 C (-17.0 F)
1947-22.2 C (-8.0 F)
1948-30.6 C (-23.1 F)
1949-23.3 C (-9.9 F)
1950-25.0 C (-13.0 F)
1951-25.0 C (-13.0 F)
1952-22.2 C (-8.0 F)
1953-17.8 C (0.0 F)
1954-30.6 C (-23.1 F)
1955-26.7 C (-16.1 F)
1956-23.3 C (-9.9 F)
1957-27.8 C (-18.0 F)
1958-23.3 C (-9.9 F)
1959-23.3 C (-9.9 F)
1960-21.1 C (-6.0 F)
1961-28.9 C (-20.0 F)
1962-24.4 C (-11.9 F)
1963-26.1 C (-15.0 F)
1964-25.0 C (-13.0 F)
1965-25.0 C (-13.0 F)
1966-26.7 C (-16.1 F)
1967-27.8 C (-18.0 F)
1968-27.8 C (-18.0 F)
1969-17.8 C (0.0 F)
1970-23.3 C (-9.9 F)
1971-30.0 C (-22.0 F)
1972-23.9 C (-11.0 F)
1973-23.3 C (-9.9 F)
1974-26.1 C (-15.0 F)
1975-26.1 C (-15.0 F)
1976-20.6 C (-5.1 F)
1977-23.3 C (-9.9 F)
1978-24.4 C (-11.9 F)
1979-24.0 C (-11.2 F)
1980-27.0 C (-16.6 F)
1981-28.0 C (-18.4 F)
1982-24.5 C (-12.1 F)
1983-22.0 C (-7.6 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at St Margaret's Bay by year The wettest day of the year at St Margaret's Bay, 1922 to 1983. The record is 132.1 mm (5.2 in) in 1942, marked on the chart; the median year is 66.9 mm (2.6 in). 255075100125150194019601980Record: 132.1 mm (5.2 in) in 1942
The wettest day of the year at St Margaret's Bay, 1922 to 1983. The record is 132.1 mm (5.2 in) in 1942, marked on the chart; the median year is 66.9 mm (2.6 in).
Wettest day (Rx1day) at St Margaret's Bay by year
YearWettest day (Rx1day)
192249.8 mm (2.0 in)
192371.9 mm (2.8 in)
192469.3 mm (2.7 in)
192576.5 mm (3.0 in)
192676.2 mm (3.0 in)
192742.2 mm (1.7 in)
192871.1 mm (2.8 in)
1929104.1 mm (4.1 in)
193049.5 mm (1.9 in)
193137.3 mm (1.5 in)
193250.8 mm (2.0 in)
193363.5 mm (2.5 in)
193457.2 mm (2.3 in)
193554.6 mm (2.1 in)
193677.5 mm (3.1 in)
193771.1 mm (2.8 in)
193871.1 mm (2.8 in)
193980.8 mm (3.2 in)
194077.5 mm (3.1 in)
194163.5 mm (2.5 in)
1942132.1 mm (5.2 in)
194375.4 mm (3.0 in)
194454.6 mm (2.1 in)
194568.6 mm (2.7 in)
194680.3 mm (3.2 in)
1947113.5 mm (4.5 in)
194882.3 mm (3.2 in)
1949112.0 mm (4.4 in)
195071.9 mm (2.8 in)
195158.4 mm (2.3 in)
195246.5 mm (1.8 in)
195361.5 mm (2.4 in)
195462.2 mm (2.4 in)
195539.4 mm (1.6 in)
1956113.0 mm (4.4 in)
195743.9 mm (1.7 in)
195894.0 mm (3.7 in)
195961.0 mm (2.4 in)
196050.8 mm (2.0 in)
196182.8 mm (3.3 in)
196292.7 mm (3.6 in)
196355.9 mm (2.2 in)
1964118.1 mm (4.6 in)
196578.7 mm (3.1 in)
196649.5 mm (1.9 in)
196775.4 mm (3.0 in)
196841.9 mm (1.6 in)
196948.3 mm (1.9 in)
197063.5 mm (2.5 in)
1971124.5 mm (4.9 in)
197269.9 mm (2.8 in)
197357.2 mm (2.3 in)
197437.1 mm (1.5 in)
197551.6 mm (2.0 in)
197640.6 mm (1.6 in)
197744.5 mm (1.8 in)
197881.3 mm (3.2 in)
197957.4 mm (2.3 in)
198062.4 mm (2.5 in)
198192.2 mm (3.6 in)
198282.4 mm (3.2 in)
198365.2 mm (2.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at St Margaret's Bay by year The wettest five days of the year at St Margaret's Bay, 1922 to 1983. The record is 269.7 mm (10.6 in) in 1956, marked on the chart; the median year is 96.5 mm (3.8 in). 0100200300194019601980Record: 269.7 mm (10.6 in) in 1956
The wettest five days of the year at St Margaret's Bay, 1922 to 1983. The record is 269.7 mm (10.6 in) in 1956, marked on the chart; the median year is 96.5 mm (3.8 in).
Wettest five days (Rx5day) at St Margaret's Bay by year
YearWettest five days (Rx5day)
1922110.2 mm (4.3 in)
192386.3 mm (3.4 in)
192477.9 mm (3.1 in)
1925107.2 mm (4.2 in)
192676.2 mm (3.0 in)
192763.5 mm (2.5 in)
1928125.2 mm (4.9 in)
1929188.2 mm (7.4 in)
193070.6 mm (2.8 in)
193166.1 mm (2.6 in)
193276.7 mm (3.0 in)
1933142.6 mm (5.6 in)
1934122.1 mm (4.8 in)
193589.7 mm (3.5 in)
1936114.6 mm (4.5 in)
193778.7 mm (3.1 in)
193897.8 mm (3.9 in)
1939112.0 mm (4.4 in)
194088.5 mm (3.5 in)
1941118.2 mm (4.7 in)
1942166.9 mm (6.6 in)
1943109.2 mm (4.3 in)
194490.5 mm (3.6 in)
1945126.5 mm (5.0 in)
1946100.6 mm (4.0 in)
1947173.4 mm (6.8 in)
194892.4 mm (3.6 in)
1949112.0 mm (4.4 in)
1950104.4 mm (4.1 in)
195171.6 mm (2.8 in)
195274.4 mm (2.9 in)
1953115.1 mm (4.5 in)
195485.5 mm (3.4 in)
195564.8 mm (2.6 in)
1956269.7 mm (10.6 in)
195775.4 mm (3.0 in)
1958146.8 mm (5.8 in)
1959130.8 mm (5.1 in)
1960119.3 mm (4.7 in)
1961155.2 mm (6.1 in)
1962101.1 mm (4.0 in)
196375.3 mm (3.0 in)
1964120.7 mm (4.8 in)
196594.8 mm (3.7 in)
196658.7 mm (2.3 in)
1967118.1 mm (4.6 in)
196877.2 mm (3.0 in)
196983.3 mm (3.3 in)
197070.4 mm (2.8 in)
1971165.4 mm (6.5 in)
197294.0 mm (3.7 in)
197395.3 mm (3.8 in)
197470.9 mm (2.8 in)
197595.8 mm (3.8 in)
197661.7 mm (2.4 in)
197789.2 mm (3.5 in)
1978146.1 mm (5.8 in)
197997.2 mm (3.8 in)
198097.4 mm (3.8 in)
198192.2 mm (3.6 in)
1982118.2 mm (4.7 in)
198375.1 mm (3.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at St Margaret's Bay by year The longest dry spell of the year at St Margaret's Bay, 1922 to 1983. The record is 28 days in 1974, marked on the chart; the median year is 15 days. 51015202530194019601980Record: 28 days in 1974
The longest dry spell of the year at St Margaret's Bay, 1922 to 1983. The record is 28 days in 1974, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at St Margaret's Bay by year
YearLongest dry spell (CDD)
192211 days
192314 days
192426 days
192515 days
192614 days
192715 days
192812 days
192914 days
193024 days
193118 days
193217 days
193312 days
193420 days
193514 days
19369 days
193715 days
193817 days
193916 days
194017 days
194111 days
194216 days
194312 days
194417 days
194511 days
194613 days
194726 days
194812 days
194914 days
195015 days
195113 days
195210 days
195313 days
195417 days
195510 days
195615 days
195713 days
195810 days
195916 days
196020 days
196120 days
196212 days
196314 days
196413 days
196515 days
196612 days
196713 days
196815 days
196914 days
197012 days
197115 days
197210 days
197315 days
197428 days
197523 days
197619 days
197713 days
197814 days
197919 days
198023 days
198119 days
198219 days
198319 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

60 years with a frost

Across 60 years with a frost, the median last spring frost at St Margaret's Bay falls on 28 May and the median first autumn frost on 26 September, which leaves a median of 121 days between them.

In 1953 to 1983 the median growing season was 120 days. That is 1 day fewer than in 1923 to 1952.

Fitted over all years, the growing season changes by +2.5 days per decade at this station.

Frost dates and growing season at St Margaret's Bay
MeasureMedian, all yearsEarliest period (1923 to 1952)Recent period (1953 to 1983)Recent against earliestFitted trend
Last spring frost28 May30 May28 May2 days earlier-0.6 days per decade
First autumn frost26 September26 September26 Septemberno change+1.8 days per decade
Growing days121 days121 days120 days1 day fewer+2.5 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

61 years, 1923 to 1983

A day with at least 66.1 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 141.3 mm (5.6 in) of rain is expected about once in 100 years.

Rainfall return levels at St Margaret's Bay: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years66.1 mm (2.6 in)
5 years86.4 mm (3.4 in)
10 years99.7 mm (3.9 in)
25 years116.5 mm (4.6 in)
50 years129.0 mm (5.1 in)
100 years141.3 mm (5.6 in)Longer than the 61 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, 61 years of values from 1923 to 1983.

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: 132.1 mm (5.2 in) in 1942; 124.5 mm (4.9 in) in 1971; 118.1 mm (4.6 in) in 1964.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

  • Data for St Margaret's Bay standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for St Margaret's Bay 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 (2025-12-31).