Built 2026-10-17 (17 October 2026)

Bull Harbour Weather Records (CA001031110)

Record envelope, standing records and threshold days for Bull Harbour (CA001031110), British Columbia, Canada, with 68 years of record.

Key Facts for Bull Harbour

  • Bull Harbour (CA001031110) is a weather station in British Columbia, Canada at 50.92 latitude and -127.95 longitude, 14 m (46 ft) above sea level.
  • The station reports from 1921 to 1988, 68 years of record.
  • 1,464 records set at Bull Harbour still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • Bull Harbour set a daily record low minimum temperature of -9.8 C (14.4 F) on 23 December 1983.

About the Station

  • Location: British Columbia, Canada, 50.92 latitude, -127.95 longitude.
  • Elevation: 14 m (46 ft).
  • Period of record: 1921 to 1988, 68 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 Bull Harbour, with 2026 drawn through them The band shows the record high and record low for each calendar day at Bull Harbour. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -20-100102030 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Bull Harbour. 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 Bull Harbour, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.7 C (62.1 F)-12.8 C (9.0 F)n/an/a
Feb20.0 C (68.0 F)-10.0 C (14.0 F)n/an/a
Mar22.2 C (72.0 F)-10.6 C (12.9 F)n/an/a
Apr22.2 C (72.0 F)-3.7 C (25.3 F)n/an/a
May25.6 C (78.1 F)-2.2 C (28.0 F)n/an/a
Jun26.1 C (79.0 F)1.1 C (34.0 F)n/an/a
Jul25.6 C (78.1 F)4.4 C (39.9 F)n/an/a
Aug25.0 C (77.0 F)4.4 C (39.9 F)n/an/a
Sep27.2 C (81.0 F)0.0 C (32.0 F)n/an/a
Oct25.0 C (77.0 F)-6.1 C (21.0 F)n/an/a
Nov23.9 C (75.0 F)-7.8 C (18.0 F)n/an/a
Dec15.6 C (60.1 F)-12.2 C (10.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Bull Harbour by the year they were set 1,464 records at Bull Harbour still stand. 1923 holds the most, with 74. 0204060801921: 111922: 351923: 741924: 701925: 571926: 371927: 141928: 301929: 261930: 321931: 161932: 251933: 251934: 301935: 291936: 351937: 181938: 171939: 181940: 281941: 231942: 191943: 241944: 151945: 111946: 81947: 131948: 101949: 261950: 381951: 201952: 161953: 91954: 261955: 391956: 191957: 71958: 491959: 141960: 161961: 161962: 151963: 221964: 221965: 211966: 151967: 131968: 221969: 181970: 211971: 241972: 281973: 181974: 131975: 201976: 221977: 311978: 111979: 201980: 181981: 171982: 141983: 14192119281935194219491956196319701977
1,464 records at Bull Harbour still stand. 1923 holds the most, with 74.
Standing records at Bull Harbour by the year they were set
Year setStanding records
192111
192235
192374
192470
192557
192637
192714
192830
192926
193032
193116
193225
193325
193430
193529
193635
193718
193817
193918
194028
194123
194219
194324
194415
194511
19468
194713
194810
194926
195038
195120
195216
19539
195426
195539
195619
19577
195849
195914
196016
196116
196215
196322
196422
196521
196615
196713
196822
196918
197021
197124
197228
197318
197413
197520
197622
197731
197811
197920
198018
198117
198214
198314

All-Time Record Progression

3 new records
When Bull Harbour set new all-time records 3 all-time records were set at Bull Harbour between 13 September 1961 and 10 December 1980. Each dot is a new record. Record high maximum temperatureRecord daily precipitation13 September 1961: Record high maximum temperature 26.7 C (80.1 F)15 September 1967: Record high maximum temperature 27.2 C (81.0 F)10 December 1980: Record daily precipitation 167.1 mm (6.6 in)1965197019751980
3 all-time records were set at Bull Harbour between 13 September 1961 and 10 December 1980. Each dot is a new record.
When Bull Harbour set new all-time records
DateKindDetail
1961-09-13Record high maximum temperatureRecord high maximum temperature 26.7 C (80.1 F)
1967-09-15Record high maximum temperatureRecord high maximum temperature 27.2 C (81.0 F)
1980-12-10Record daily precipitationRecord daily precipitation 167.1 mm (6.6 in)

Wettest Day of Each Month

Dec: 167.1 mm (6.6 in)
Record daily precipitation for each month at Bull Harbour The wettest day on record for each calendar month at Bull Harbour. The most was 167.1 mm (6.6 in) on 10 December 1980. 050100150200 Jan: 158.8 mm (6.3 in), 29 January 1941 Jan Feb: 157.2 mm (6.2 in), 3 February 1941 Feb Mar: 61.2 mm (2.4 in), 29 March 1966 Mar Apr: 53.6 mm (2.1 in), 12 April 1977 Apr May: 51.3 mm (2.0 in), 7 May 1967 May Jun: 65.3 mm (2.6 in), 14 June 1976 Jun Jul: 66.0 mm (2.6 in), 13 July 1924 Jul Aug: 48.0 mm (1.9 in), 8 August 1940 Aug Sep: 117.1 mm (4.6 in), 30 September 1962 Sep Oct: 99.4 mm (3.9 in), 22 October 1977 Oct Nov: 114.8 mm (4.5 in), 12 November 1975 Nov Dec: 167.1 mm (6.6 in), 10 December 1980 Dec
The wettest day on record for each calendar month at Bull Harbour. The most was 167.1 mm (6.6 in) on 10 December 1980.
Record daily precipitation for each month at Bull Harbour
MonthRecord daily precipitation (mm)Date
Jan158.8 mm (6.3 in)29 January 1941
Feb157.2 mm (6.2 in)3 February 1941
Mar61.2 mm (2.4 in)29 March 1966
Apr53.6 mm (2.1 in)12 April 1977
May51.3 mm (2.0 in)7 May 1967
Jun65.3 mm (2.6 in)14 June 1976
Jul66.0 mm (2.6 in)13 July 1924
Aug48.0 mm (1.9 in)8 August 1940
Sep117.1 mm (4.6 in)30 September 1962
Oct99.4 mm (3.9 in)22 October 1977
Nov114.8 mm (4.5 in)12 November 1975
Dec167.1 mm (6.6 in)10 December 1980

Period of Record Coverage

1921 to 1983
Days with data per year at Bull Harbour 63 years of record at Bull Harbour, 1921 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1921, 1926, 1951, 1952. 1921: 184 of 365 days1922: 361 of 365 days1923: 364 of 365 days1924: 366 of 366 days1925: 363 of 365 days1926: 273 of 365 days1927: 363 of 365 days1928: 366 of 366 days1929: 365 of 365 days1930: 364 of 365 days1931: 365 of 365 days1932: 366 of 366 days1933: 364 of 365 days1934: 365 of 365 days1935: 365 of 365 days1936: 348 of 366 days1937: 364 of 365 days1938: 365 of 365 days1939: 365 of 365 days1940: 365 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 356 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 324 of 365 days1952: 322 of 366 days1953: 356 of 365 days1954: 365 of 365 days1955: 364 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 365 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 364 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 364 of 365 days1970: 364 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 364 of 365 days1979: 342 of 365 days1980: 342 of 366 days1981: 335 of 365 days1982: 365 of 365 days1983: 362 of 365 days193019401950196019701980
63 years of record at Bull Harbour, 1921 to 1983. 4 years have data for under 90 percent of days and are left out of rankings: 1921, 1926, 1951, 1952.
Days with data per year at Bull Harbour
YearDays with dataShare of yearComplete
192118450%No
192236199%Yes
1923364100%Yes
1924366100%Yes
192536399%Yes
192627375%No
192736399%Yes
1928366100%Yes
1929365100%Yes
1930364100%Yes
1931365100%Yes
1932366100%Yes
1933364100%Yes
1934365100%Yes
1935365100%Yes
193634895%Yes
1937364100%Yes
1938365100%Yes
1939365100%Yes
1940365100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
194835697%Yes
1949365100%Yes
1950365100%Yes
195132489%No
195232288%No
195335698%Yes
1954365100%Yes
1955364100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960365100%Yes
1961365100%Yes
1962365100%Yes
1963364100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969364100%Yes
1970364100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978364100%Yes
197934294%Yes
198034293%Yes
198133592%Yes
1982365100%Yes
198336299%Yes

Latest Records

20
Latest records at Bull Harbour
DateStationRecordValueBeat old record byOld record stoodSignificance
23 December 1983Bull Harbour, CAdaily low min-9.8 C (14.4 F)3.1 C (5.6 F)61 years33 of 100 (Routine)
23 December 1983Bull Harbour, CAdaily low max-0.8 C (30.6 F)1.9 C (3.4 F)58 years29 of 100 (Routine)
22 December 1983Bull Harbour, CAdaily low min-9.0 C (15.8 F)0.7 C (1.3 F)58 years25 of 100 (Routine)
22 December 1983Bull Harbour, CAdaily low max-2.0 C (28.4 F)3.1 C (5.6 F)18 years22 of 100 (Routine)
21 December 1983Bull Harbour, CAdaily low min-9.2 C (15.4 F)3.1 C (5.6 F)58 years32 of 100 (Routine)
21 December 1983Bull Harbour, CAdaily low max-0.7 C (30.7 F)1.8 C (3.2 F)12 years15 of 100 (Routine)
20 December 1983Bull Harbour, CAdaily low max-1.6 C (29.1 F)1.0 C (1.8 F)16 years13 of 100 (Routine)
20 December 1983Bull Harbour, CAdaily low min (Tie)-8.3 C (17.1 F)tie58 years5 of 100 (Routine)
30 November 1983Bull Harbour, CAdaily low min-2.2 C (28.0 F)0.5 C (0.9 F)12 years10 of 100 (Routine)
2 September 1983Bull Harbour, CAdaily rain27.4 mm (1.1 in)8.6 mm (0.34 in)36 years23 of 100 (Routine)
27 August 1983Bull Harbour, CAdaily high max21.4 C (70.5 F)1.4 C (2.5 F)52 years28 of 100 (Routine)
26 July 1983Bull Harbour, CAdaily rain15.4 mm (0.6 in)7.0 mm (0.28 in)34 years20 of 100 (Routine)
11 July 1983Bull Harbour, CAdaily rain35.2 mm (1.4 in)2.9 mm (0.11 in)14 years14 of 100 (Routine)
24 June 1983Bull Harbour, CAdaily rain14.8 mm (0.6 in)5.7 mm (0.22 in)24 years20 of 100 (Routine)
17 June 1983Bull Harbour, CAdaily rain27.7 mm (1.1 in)14.5 mm (0.6 in)41 years40 of 100 (Notable)
5 June 1983Bull Harbour, CAdaily rain39.8 mm (1.6 in)24.8 mm (1.0 in)42 years56 of 100 (Notable)
31 May 1983Bull Harbour, CAdaily high min10.9 C (51.6 F)0.3 C (0.5 F)36 years18 of 100 (Routine)
29 May 1983Bull Harbour, CAdaily high min11.2 C (52.2 F)0.1 C (0.2 F)24 years13 of 100 (Routine)
10 May 1983Bull Harbour, CAdaily high min9.6 C (49.3 F)0.2 C (0.4 F)28 years14 of 100 (Routine)
8 March 1983Bull Harbour, CAdaily rain44.2 mm (1.7 in)20.6 mm (0.8 in)5 years31 of 100 (Routine)

Climate Trend

54 complete years, 1922 to 1983
Annual mean temperature at Bull Harbour as warming stripes, 1922 to 1983 One stripe for each of 54 complete years at Bull Harbour, 1922 to 1983. Blue stripes are years cooler than the station's own mean of 8.4 C (47.1 F); red stripes are warmer. The coolest year was 1972, at 7.2 C (45.0 F), and the warmest was 1958, at 9.9 C (49.8 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1922: 8.1 C, -0.3 C from the station mean1923: 9.6 C, +1.2 C from the station mean1924: 8.6 C, +0.2 C from the station mean1925: 9.2 C, +0.8 C from the station mean1927: 7.9 C, -0.5 C from the station mean1928: 8.7 C, +0.3 C from the station mean1929: 8.4 C, 0.0 C from the station mean1930: 8.4 C, 0.0 C from the station mean1931: 8.5 C, +0.1 C from the station mean1932: 8.4 C, 0.0 C from the station mean1933: 8.4 C, 0.0 C from the station mean1934: 9.3 C, +0.9 C from the station mean1935: 8.4 C, 0.0 C from the station mean1937: 8.3 C, -0.1 C from the station mean1938: 8.8 C, +0.4 C from the station mean1939: 8.8 C, +0.4 C from the station mean1940: 9.9 C, +1.4 C from the station mean1941: 9.8 C, +1.4 C from the station mean1942: 9.2 C, +0.8 C from the station mean1943: 8.5 C, +0.1 C from the station mean1944: 9.0 C, +0.6 C from the station mean1945: 8.3 C, -0.1 C from the station mean1946: 8.2 C, -0.2 C from the station mean1947: 8.4 C, -0.1 C from the station mean1948: 8.0 C, -0.5 C from the station mean1949: 8.2 C, -0.2 C from the station mean1950: 7.4 C, -1.0 C from the station mean1953: 8.8 C, +0.4 C from the station mean1954: 8.2 C, -0.2 C from the station mean1955: 7.4 C, -1.0 C from the station mean1956: 8.1 C, -0.3 C from the station mean1957: 8.6 C, +0.2 C from the station mean1958: 9.9 C, +1.5 C from the station mean1959: 8.8 C, +0.4 C from the station mean1960: 8.6 C, +0.2 C from the station mean1961: 8.9 C, +0.5 C from the station mean1962: 8.7 C, +0.3 C from the station mean1963: 9.3 C, +0.8 C from the station mean1964: 7.6 C, -0.8 C from the station mean1965: 7.8 C, -0.6 C from the station mean1966: 8.3 C, -0.1 C from the station mean1967: 8.5 C, +0.1 C from the station mean1968: 8.0 C, -0.4 C from the station mean1969: 7.7 C, -0.7 C from the station mean1970: 8.1 C, -0.3 C from the station mean1971: 7.4 C, -1.0 C from the station mean1972: 7.2 C, -1.2 C from the station mean1973: 7.5 C, -0.9 C from the station mean1974: 8.0 C, -0.4 C from the station mean1975: 7.3 C, -1.1 C from the station mean1976: 8.0 C, -0.4 C from the station mean1977: 7.8 C, -0.6 C from the station mean1978: 8.3 C, -0.1 C from the station mean1983: 8.7 C, +0.3 C from the station mean1922193019401950196019701980
One stripe for each of 54 complete years at Bull Harbour, 1922 to 1983. Blue stripes are years cooler than the station's own mean of 8.4 C (47.1 F); red stripes are warmer. The coolest year was 1972, at 7.2 C (45.0 F), and the warmest was 1958, at 9.9 C (49.8 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Bull Harbour as warming stripes, 1922 to 1983
YearAnnual mean temperatureDifference from the station mean
19228.1 C-0.34 C
19239.6 C+1.16 C
19248.6 C+0.24 C
19259.2 C+0.81 C
19277.9 C-0.54 C
19288.7 C+0.33 C
19298.4 C-0.03 C
19308.4 C-0.02 C
19318.5 C+0.13 C
19328.4 C-0.04 C
19338.4 C-0.04 C
19349.3 C+0.87 C
19358.4 C+0.02 C
19378.3 C-0.06 C
19388.8 C+0.40 C
19398.8 C+0.37 C
19409.9 C+1.45 C
19419.8 C+1.36 C
19429.2 C+0.79 C
19438.5 C+0.14 C
19449.0 C+0.59 C
19458.3 C-0.14 C
19468.2 C-0.21 C
19478.4 C-0.05 C
19488.0 C-0.45 C
19498.2 C-0.21 C
19507.4 C-1.01 C
19538.8 C+0.37 C
19548.2 C-0.17 C
19557.4 C-0.98 C
19568.1 C-0.34 C
19578.6 C+0.21 C
19589.9 C+1.50 C
19598.8 C+0.38 C
19608.6 C+0.20 C
19618.9 C+0.48 C
19628.7 C+0.26 C
19639.3 C+0.85 C
19647.6 C-0.80 C
19657.8 C-0.61 C
19668.3 C-0.11 C
19678.5 C+0.08 C
19688.0 C-0.41 C
19697.7 C-0.74 C
19708.1 C-0.33 C
19717.4 C-0.96 C
19727.2 C-1.17 C
19737.5 C-0.90 C
19748.0 C-0.40 C
19757.3 C-1.08 C
19768.0 C-0.43 C
19777.8 C-0.60 C
19788.3 C-0.10 C
19838.7 C+0.33 C

The annual mean temperature here has fallen by 0.2 C (0.1 to 0.2) per decade over 1922 to 1983. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 54 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Bull Harbour
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.2 C (-0.2 to -0.1) per decade-0.3 F (-0.4 to -0.1) per decade1922 to 198354Fall
Mean daily maximum-0.3 C (-0.4 to -0.2) per decade-0.5 F (-0.7 to -0.3) per decade1922 to 198354Fall
Mean daily minimum-0.04 C (-0.14 to 0.07) per decade-0.1 F (-0.3 to 0.1) per decade1922 to 198354Not 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

1921 to 1983
Yearly extremes at Bull Harbour: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)27.2 C (81.0 F)196722.8 C (73.0 F)63
Coldest night (TNn)-12.8 C (9.0 F)1929-6.7 C (19.9 F)63
Wettest day (Rx1day)167.1 mm (6.6 in)198063.5 mm (2.5 in)63
Wettest five days (Rx5day)390.0 mm (15.4 in)1941136.2 mm (5.4 in)63
Longest dry spell (CDD)47 days193018 days63

Hottest day (TXx)

Hottest day (TXx) at Bull Harbour by year The hottest day of the year at Bull Harbour, 1921 to 1983. The record is 27.2 C (81.0 F) in 1967, marked on the chart; the median year is 22.8 C (73.0 F). 17.52022.52527.5194019601980Record: 27.2 C (81.0 F) in 1967
The hottest day of the year at Bull Harbour, 1921 to 1983. The record is 27.2 C (81.0 F) in 1967, marked on the chart; the median year is 22.8 C (73.0 F).
Hottest day (TXx) at Bull Harbour by year
YearHottest day (TXx)
192121.1 C (70.0 F)
192225.0 C (77.0 F)
192325.0 C (77.0 F)
192425.6 C (78.1 F)
192525.6 C (78.1 F)
192625.6 C (78.1 F)
192724.4 C (75.9 F)
192825.0 C (77.0 F)
192922.2 C (72.0 F)
193021.7 C (71.1 F)
193121.7 C (71.1 F)
193220.6 C (69.1 F)
193325.0 C (77.0 F)
193425.6 C (78.1 F)
193521.1 C (70.0 F)
193621.7 C (71.1 F)
193722.2 C (72.0 F)
193825.0 C (77.0 F)
193920.0 C (68.0 F)
194025.6 C (78.1 F)
194121.1 C (70.0 F)
194226.1 C (79.0 F)
194322.8 C (73.0 F)
194420.0 C (68.0 F)
194518.9 C (66.0 F)
194624.4 C (75.9 F)
194721.1 C (70.0 F)
194821.1 C (70.0 F)
194923.3 C (73.9 F)
195022.8 C (73.0 F)
195122.2 C (72.0 F)
195222.8 C (73.0 F)
195321.1 C (70.0 F)
195422.2 C (72.0 F)
195522.2 C (72.0 F)
195621.1 C (70.0 F)
195722.2 C (72.0 F)
195824.4 C (75.9 F)
195921.7 C (71.1 F)
196024.4 C (75.9 F)
196126.7 C (80.1 F)
196223.9 C (75.0 F)
196325.0 C (77.0 F)
196420.6 C (69.1 F)
196525.6 C (78.1 F)
196625.6 C (78.1 F)
196727.2 C (81.0 F)
196822.2 C (72.0 F)
196918.9 C (66.0 F)
197023.3 C (73.9 F)
197123.3 C (73.9 F)
197223.3 C (73.9 F)
197321.7 C (71.1 F)
197425.0 C (77.0 F)
197522.2 C (72.0 F)
197623.9 C (75.0 F)
197720.2 C (68.4 F)
197823.4 C (74.1 F)
197921.4 C (70.5 F)
198023.4 C (74.1 F)
198124.5 C (76.1 F)
198220.8 C (69.4 F)
198323.2 C (73.8 F)

Coldest night (TNn)

Coldest night (TNn) at Bull Harbour by year The coldest night of the year at Bull Harbour, 1921 to 1983. The record is -12.8 C (9.0 F) in 1929, marked on the chart; the median year is -6.7 C (19.9 F). -15-12.5-10-7.5-5-2.5194019601980Record: -12.8 C (9.0 F) in 1929
The coldest night of the year at Bull Harbour, 1921 to 1983. The record is -12.8 C (9.0 F) in 1929, marked on the chart; the median year is -6.7 C (19.9 F).
Coldest night (TNn) at Bull Harbour by year
YearColdest night (TNn)
1921-12.2 C (10.0 F)
1922-10.0 C (14.0 F)
1923-10.0 C (14.0 F)
1924-12.2 C (10.0 F)
1925-4.4 C (24.1 F)
1926-5.6 C (21.9 F)
1927-8.3 C (17.1 F)
1928-3.9 C (25.0 F)
1929-12.8 C (9.0 F)
1930-6.7 C (19.9 F)
1931-3.3 C (26.1 F)
1932-10.0 C (14.0 F)
1933-4.4 C (24.1 F)
1934-3.9 C (25.0 F)
1935-10.0 C (14.0 F)
1936-7.2 C (19.0 F)
1937-6.7 C (19.9 F)
1938-2.8 C (27.0 F)
1939-3.3 C (26.1 F)
1940-2.8 C (27.0 F)
1941-5.0 C (23.0 F)
1942-3.3 C (26.1 F)
1943-12.8 C (9.0 F)
1944-2.8 C (27.0 F)
1945-3.3 C (26.1 F)
1946-3.3 C (26.1 F)
1947-9.4 C (15.1 F)
1948-3.9 C (25.0 F)
1949-7.8 C (18.0 F)
1950-11.7 C (10.9 F)
1951-8.9 C (16.0 F)
1952-3.9 C (25.0 F)
1953-5.6 C (21.9 F)
1954-7.8 C (18.0 F)
1955-10.6 C (12.9 F)
1956-7.8 C (18.0 F)
1957-8.9 C (16.0 F)
1958-3.3 C (26.1 F)
1959-6.1 C (21.0 F)
1960-4.4 C (24.1 F)
1961-2.8 C (27.0 F)
1962-5.6 C (21.9 F)
1963-6.1 C (21.0 F)
1964-8.9 C (16.0 F)
1965-6.7 C (19.9 F)
1966-9.4 C (15.1 F)
1967-6.7 C (19.9 F)
1968-11.7 C (10.9 F)
1969-12.2 C (10.0 F)
1970-5.0 C (23.0 F)
1971-6.7 C (19.9 F)
1972-8.9 C (16.0 F)
1973-6.1 C (21.0 F)
1974-5.6 C (21.9 F)
1975-6.1 C (21.0 F)
1976-5.0 C (23.0 F)
1977-7.0 C (19.4 F)
1978-5.0 C (23.0 F)
1979-6.5 C (20.3 F)
1980-8.1 C (17.4 F)
1981-4.3 C (24.3 F)
1982-7.7 C (18.1 F)
1983-9.8 C (14.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Bull Harbour by year The wettest day of the year at Bull Harbour, 1921 to 1983. The record is 167.1 mm (6.6 in) in 1980, marked on the chart; the median year is 63.5 mm (2.5 in). 050100150200194019601980Record: 167.1 mm (6.6 in) in 1980
The wettest day of the year at Bull Harbour, 1921 to 1983. The record is 167.1 mm (6.6 in) in 1980, marked on the chart; the median year is 63.5 mm (2.5 in).
Wettest day (Rx1day) at Bull Harbour by year
YearWettest day (Rx1day)
192145.7 mm (1.8 in)
192278.2 mm (3.1 in)
192338.6 mm (1.5 in)
192466.0 mm (2.6 in)
192576.2 mm (3.0 in)
192663.5 mm (2.5 in)
192740.6 mm (1.6 in)
192834.3 mm (1.4 in)
192953.3 mm (2.1 in)
193051.6 mm (2.0 in)
193182.6 mm (3.3 in)
193274.9 mm (2.9 in)
193366.0 mm (2.6 in)
193454.6 mm (2.1 in)
193563.5 mm (2.5 in)
193659.7 mm (2.4 in)
193758.7 mm (2.3 in)
1938134.4 mm (5.3 in)
193976.2 mm (3.0 in)
194076.7 mm (3.0 in)
1941158.8 mm (6.3 in)
194238.9 mm (1.5 in)
194345.2 mm (1.8 in)
194444.7 mm (1.8 in)
194538.1 mm (1.5 in)
194698.3 mm (3.9 in)
194781.0 mm (3.2 in)
194848.3 mm (1.9 in)
194961.2 mm (2.4 in)
195062.5 mm (2.5 in)
195126.2 mm (1.0 in)
195270.6 mm (2.8 in)
195344.2 mm (1.7 in)
195451.3 mm (2.0 in)
195556.1 mm (2.2 in)
195663.5 mm (2.5 in)
195755.9 mm (2.2 in)
195845.2 mm (1.8 in)
195948.5 mm (1.9 in)
196077.0 mm (3.0 in)
196178.5 mm (3.1 in)
1962117.1 mm (4.6 in)
1963100.8 mm (4.0 in)
196447.5 mm (1.9 in)
196555.4 mm (2.2 in)
196670.4 mm (2.8 in)
196787.9 mm (3.5 in)
196870.1 mm (2.8 in)
196965.8 mm (2.6 in)
197080.3 mm (3.2 in)
1971120.1 mm (4.7 in)
197240.9 mm (1.6 in)
197384.1 mm (3.3 in)
197484.1 mm (3.3 in)
1975114.8 mm (4.5 in)
197667.1 mm (2.6 in)
197799.4 mm (3.9 in)
197872.0 mm (2.8 in)
197960.0 mm (2.4 in)
1980167.1 mm (6.6 in)
198186.4 mm (3.4 in)
198260.0 mm (2.4 in)
198360.2 mm (2.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Bull Harbour by year The wettest five days of the year at Bull Harbour, 1921 to 1983. The record is 390.0 mm (15.4 in) in 1941, marked on the chart; the median year is 136.2 mm (5.4 in). 0100200300400194019601980Record: 390.0 mm (15.4 in) in 1941
The wettest five days of the year at Bull Harbour, 1921 to 1983. The record is 390.0 mm (15.4 in) in 1941, marked on the chart; the median year is 136.2 mm (5.4 in).
Wettest five days (Rx5day) at Bull Harbour by year
YearWettest five days (Rx5day)
1921110.7 mm (4.4 in)
1922136.2 mm (5.4 in)
1923123.1 mm (4.8 in)
1924131.2 mm (5.2 in)
1925136.3 mm (5.4 in)
1926152.5 mm (6.0 in)
1927123.1 mm (4.8 in)
1928118.3 mm (4.7 in)
1929117.6 mm (4.6 in)
1930115.4 mm (4.5 in)
1931101.1 mm (4.0 in)
1932162.9 mm (6.4 in)
1933135.3 mm (5.3 in)
1934122.4 mm (4.8 in)
1935152.4 mm (6.0 in)
1936109.9 mm (4.3 in)
1937113.8 mm (4.5 in)
1938187.0 mm (7.4 in)
1939209.8 mm (8.3 in)
1940221.7 mm (8.7 in)
1941390.0 mm (15.4 in)
1942103.7 mm (4.1 in)
194385.8 mm (3.4 in)
1944105.6 mm (4.2 in)
194585.4 mm (3.4 in)
1946150.1 mm (5.9 in)
1947144.0 mm (5.7 in)
1948101.1 mm (4.0 in)
194987.3 mm (3.4 in)
1950109.2 mm (4.3 in)
195172.9 mm (2.9 in)
1952142.7 mm (5.6 in)
195397.2 mm (3.8 in)
1954104.8 mm (4.1 in)
1955129.0 mm (5.1 in)
1956140.2 mm (5.5 in)
1957102.8 mm (4.0 in)
1958107.3 mm (4.2 in)
1959100.6 mm (4.0 in)
1960156.5 mm (6.2 in)
1961127.0 mm (5.0 in)
1962248.7 mm (9.8 in)
1963173.5 mm (6.8 in)
1964100.5 mm (4.0 in)
1965146.6 mm (5.8 in)
1966138.0 mm (5.4 in)
1967187.7 mm (7.4 in)
1968175.0 mm (6.9 in)
1969161.8 mm (6.4 in)
1970120.7 mm (4.8 in)
1971360.6 mm (14.2 in)
197294.0 mm (3.7 in)
1973179.6 mm (7.1 in)
1974156.2 mm (6.1 in)
1975247.2 mm (9.7 in)
1976185.2 mm (7.3 in)
1977196.5 mm (7.7 in)
1978141.4 mm (5.6 in)
1979156.2 mm (6.1 in)
1980272.3 mm (10.7 in)
1981160.4 mm (6.3 in)
1982148.4 mm (5.8 in)
1983115.1 mm (4.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Bull Harbour by year The longest dry spell of the year at Bull Harbour, 1921 to 1983. The record is 47 days in 1930, marked on the chart; the median year is 18 days. 01020304050194019601980Record: 47 days in 1930
The longest dry spell of the year at Bull Harbour, 1921 to 1983. The record is 47 days in 1930, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Bull Harbour by year
YearLongest dry spell (CDD)
192113 days
192221 days
192318 days
192426 days
192523 days
192622 days
192727 days
192826 days
192932 days
193047 days
193128 days
193228 days
193316 days
193430 days
193515 days
193617 days
193725 days
193816 days
193911 days
194011 days
194117 days
194226 days
194317 days
194418 days
194519 days
194632 days
194715 days
194816 days
194916 days
195014 days
195132 days
195219 days
19539 days
195412 days
195519 days
195615 days
195719 days
195827 days
195916 days
196026 days
196124 days
196215 days
196312 days
19649 days
196519 days
19668 days
196721 days
196821 days
196921 days
197020 days
197123 days
197212 days
197312 days
197430 days
197511 days
19769 days
197720 days
197811 days
197911 days
198012 days
198118 days
198231 days
19839 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

54 years with a frost

Across 54 years with a frost, the median last spring frost at Bull Harbour falls on 12 April and the median first autumn frost on 10 November, which leaves a median of 213 days between them.

Fitted over all years, the growing season changes by -2.9 days per decade at this station.

Frost dates and growing season at Bull Harbour
MeasureMedian, all yearsEarliest periodRecent period (1948 to 1983)Recent against earliestFitted trend
Last spring frost12 Apriln/a22 Apriln/a+3.0 days per decade
First autumn frost10 Novembern/a9 Novembern/a+0.1 days per decade
Growing days213 daysn/a206 daysn/a-2.9 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, 1922 to 1983

A day with at least 64.4 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 169.0 mm (6.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Bull Harbour: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.4 mm (2.5 in)
5 years88.3 mm (3.5 in)
10 years105.6 mm (4.2 in)
25 years129.4 mm (5.1 in)
50 years148.6 mm (5.9 in)
100 years169.0 mm (6.7 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 1922 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: 167.1 mm (6.6 in) in 1980; 158.8 mm (6.3 in) in 1941; 134.4 mm (5.3 in) in 1938.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Bull Harbour, at 1961. Each is measured against neighbouring stations.

  • Relative to 4 neighbouring stations, the station's annual mean temperature from 1961 ran 0.5 C (0.8 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Bull Harbour, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1961-0.5-0.8likely4

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