Built 2026-10-15 (15 October 2026)

Woodbridge Weather Records (CA006159575)

Record envelope, standing records and threshold days for Woodbridge (CA006159575), Ontario, Canada, with 58 years of record.

Key Facts for Woodbridge

  • Woodbridge (CA006159575) is a weather station in Ontario, Canada at 43.78 latitude and -79.60 longitude, 164 m (538 ft) above sea level.
  • The station reports from 1948 to 2005, 58 years of record.
  • 1,464 records set at Woodbridge still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • Woodbridge set a daily record low maximum temperature of -12.5 C (9.5 F) on 30 December 1983.

About the Station

  • Location: Ontario, Canada, 43.78 latitude, -79.60 longitude.
  • Elevation: 164 m (538 ft).
  • Period of record: 1948 to 2005, 58 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 Woodbridge, with 2026 drawn through them The band shows the record high and record low for each calendar day at Woodbridge. 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 Woodbridge. 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 Woodbridge, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan15.6 C (60.1 F)-33.3 C (-27.9 F)n/an/a
Feb13.9 C (57.0 F)-30.0 C (-22.0 F)n/an/a
Mar23.3 C (73.9 F)-29.4 C (-20.9 F)n/an/a
Apr30.6 C (87.1 F)-17.2 C (1.0 F)n/an/a
May32.2 C (90.0 F)-6.7 C (19.9 F)n/an/a
Jun35.6 C (96.1 F)-1.7 C (28.9 F)n/an/a
Jul36.7 C (98.1 F)2.8 C (37.0 F)n/an/a
Aug37.2 C (99.0 F)-0.6 C (30.9 F)n/an/a
Sep36.1 C (97.0 F)-5.0 C (23.0 F)n/an/a
Oct30.6 C (87.1 F)-11.7 C (10.9 F)n/an/a
Nov25.0 C (77.0 F)-18.3 C (-0.9 F)n/an/a
Dec19.5 C (67.1 F)-30.0 C (-22.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Woodbridge by the year they were set 1,464 records at Woodbridge still stand. 1949 holds the most, with 70. 0204060801948: 51949: 701950: 511951: 511952: 371953: 321954: 411955: 421956: 441957: 391958: 271959: 531960: 351961: 331962: 391963: 551964: 591965: 641966: 391967: 421968: 391969: 271970: 361971: 311972: 351973: 411974: 361975: 431976: 611977: 421978: 311979: 501980: 291981: 401982: 311983: 34194819521956196019641968197219761980
1,464 records at Woodbridge still stand. 1949 holds the most, with 70.
Standing records at Woodbridge by the year they were set
Year setStanding records
19485
194970
195051
195151
195237
195332
195441
195542
195644
195739
195827
195953
196035
196133
196239
196355
196459
196564
196639
196742
196839
196927
197036
197131
197235
197341
197436
197543
197661
197742
197831
197950
198029
198140
198231
198334

Wettest Day of Each Month

Oct: 121.2 mm (4.8 in)
Record daily precipitation for each month at Woodbridge The wettest day on record for each calendar month at Woodbridge. The most was 121.2 mm (4.8 in) on 15 October 1954. 050100150 Jan: 49.5 mm (1.9 in), 14 January 1968 Jan Feb: 32.5 mm (1.3 in), 1 February 1968 Feb Mar: 35.3 mm (1.4 in), 4 March 1974 Mar Apr: 43.2 mm (1.7 in), 12 April 1951 Apr May: 45.7 mm (1.8 in), 16 May 1974 May Jun: 64.5 mm (2.5 in), 10 June 1967 Jun Jul: 63.0 mm (2.5 in), 9 July 1960 Jul Aug: 80.3 mm (3.2 in), 29 August 1956 Aug Sep: 47.2 mm (1.9 in), 14 September 1982 Sep Oct: 121.2 mm (4.8 in), 15 October 1954 Oct Nov: 44.7 mm (1.8 in), 9 November 1962 Nov Dec: 31.8 mm (1.3 in), 24 December 1979 Dec
The wettest day on record for each calendar month at Woodbridge. The most was 121.2 mm (4.8 in) on 15 October 1954.
Record daily precipitation for each month at Woodbridge
MonthRecord daily precipitation (mm)Date
Jan49.5 mm (1.9 in)14 January 1968
Feb32.5 mm (1.3 in)1 February 1968
Mar35.3 mm (1.4 in)4 March 1974
Apr43.2 mm (1.7 in)12 April 1951
May45.7 mm (1.8 in)16 May 1974
Jun64.5 mm (2.5 in)10 June 1967
Jul63.0 mm (2.5 in)9 July 1960
Aug80.3 mm (3.2 in)29 August 1956
Sep47.2 mm (1.9 in)14 September 1982
Oct121.2 mm (4.8 in)15 October 1954
Nov44.7 mm (1.8 in)9 November 1962
Dec31.8 mm (1.3 in)24 December 1979

Period of Record Coverage

1948 to 1983
Days with data per year at Woodbridge 36 years of record at Woodbridge, 1948 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1948. 1948: 92 of 366 days1949: 360 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 364 of 365 days1954: 365 of 365 days1955: 362 of 365 days1956: 366 of 366 days1957: 364 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 333 of 365 days1963: 334 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 363 of 365 days1967: 365 of 365 days1968: 335 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 361 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 364 of 365 days1982: 364 of 365 days1983: 363 of 365 days1950195519601965197019751980
36 years of record at Woodbridge, 1948 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1948.
Days with data per year at Woodbridge
YearDays with dataShare of yearComplete
19489225%No
194936099%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953364100%Yes
1954365100%Yes
195536299%Yes
1956366100%Yes
1957364100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
196233391%Yes
196333492%Yes
1964366100%Yes
1965365100%Yes
196636399%Yes
1967365100%Yes
196833592%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
197236199%Yes
1973365100%Yes
1974365100%Yes
1975364100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981364100%Yes
1982364100%Yes
198336399%Yes

Latest Records

20
Latest records at Woodbridge
DateStationRecordValueBeat old record byOld record stoodSignificance
30 December 1983Woodbridge, CAdaily low max-12.5 C (9.5 F)1.4 C (2.5 F)6 years7 of 100 (Routine)
25 December 1983Woodbridge, CAdaily low max-15.5 C (4.1 F)1.1 C (2.0 F)14 years9 of 100 (Routine)
14 November 1983Woodbridge, CAdaily low min-9.0 C (15.8 F)2.0 C (3.6 F)5 years8 of 100 (Routine)
13 November 1983Woodbridge, CAdaily low min-10.0 C (14.0 F)3.3 C (5.9 F)16 years14 of 100 (Routine)
13 November 1983Woodbridge, CAdaily low max0.0 C (32.0 F)0.5 C (0.9 F)5 years4 of 100 (Routine)
12 November 1983Woodbridge, CAdaily low max-1.5 C (29.3 F)1.0 C (1.8 F)5 years5 of 100 (Routine)
11 November 1983Woodbridge, CAdaily snowfall3.0 cm (1.2 in)3.0 cm (1.2 in)34 years19 of 100 (Routine)
30 October 1983Woodbridge, CAdaily low min-8.0 C (17.6 F)0.8 C (1.4 F)16 years9 of 100 (Routine)
29 October 1983Woodbridge, CAdaily low max (Tie)5.0 C (41.0 F)tie20 years2 of 100 (Routine)
13 October 1983Woodbridge, CAdaily rain15.6 mm (0.6 in)5.2 mm (0.20 in)8 years10 of 100 (Routine)
12 October 1983Woodbridge, CAdaily rain12.7 mm (0.5 in)5.1 mm (0.20 in)28 years16 of 100 (Routine)
19 September 1983Woodbridge, CAdaily high min16.0 C (60.8 F)1.0 C (1.8 F)17 years9 of 100 (Routine)
16 September 1983Woodbridge, CAdaily rain30.6 mm (1.2 in)19.6 mm (0.8 in)5 years28 of 100 (Routine)
15 September 1983Woodbridge, CAdaily low min1.0 C (33.8 F)0.1 C (0.2 F)8 years5 of 100 (Routine)
6 September 1983Woodbridge, CAdaily high min20.0 C (68.0 F)0.6 C (1.1 F)13 years8 of 100 (Routine)
11 August 1983Woodbridge, CAmonthly low max13.5 C (56.3 F)0.9 C (1.6 F)17 years20 of 100 (Routine)
10 August 1983Woodbridge, CAdaily low min6.5 C (43.7 F)0.7 C (1.3 F)10 years7 of 100 (Routine)
23 July 1983Woodbridge, CAdaily low min7.5 C (45.5 F)0.5 C (0.9 F)1 year4 of 100 (Routine)
16 July 1983Woodbridge, CAdaily high min21.5 C (70.7 F)0.9 C (1.6 F)14 years9 of 100 (Routine)
15 July 1983Woodbridge, CAdaily high max34.5 C (94.1 F)1.0 C (1.8 F)5 years6 of 100 (Routine)

Climate Trend

32 complete years, 1949 to 1983
Annual mean temperature at Woodbridge as warming stripes, 1949 to 1983 One stripe for each of 32 complete years at Woodbridge, 1949 to 1983. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 1972, at 5.9 C (42.6 F), and the warmest was 1949, at 8.3 C (46.9 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1949: 8.3 C, +1.3 C from the station mean1950: 6.7 C, -0.3 C from the station mean1951: 7.1 C, +0.1 C from the station mean1952: 7.8 C, +0.8 C from the station mean1953: 8.2 C, +1.3 C from the station mean1954: 7.0 C, +0.1 C from the station mean1955: 7.6 C, +0.6 C from the station mean1956: 6.5 C, -0.5 C from the station mean1957: 7.2 C, +0.2 C from the station mean1958: 6.4 C, -0.6 C from the station mean1959: 7.2 C, +0.2 C from the station mean1960: 6.5 C, -0.5 C from the station mean1961: 7.1 C, +0.2 C from the station mean1964: 7.0 C, 0.0 C from the station mean1965: 6.7 C, -0.3 C from the station mean1966: 7.0 C, 0.0 C from the station mean1967: 6.7 C, -0.3 C from the station mean1969: 7.1 C, +0.1 C from the station mean1970: 7.0 C, 0.0 C from the station mean1971: 7.2 C, +0.3 C from the station mean1972: 5.9 C, -1.1 C from the station mean1973: 7.7 C, +0.7 C from the station mean1974: 6.4 C, -0.5 C from the station mean1975: 7.5 C, +0.5 C from the station mean1976: 6.4 C, -0.6 C from the station mean1977: 7.2 C, +0.2 C from the station mean1978: 6.4 C, -0.5 C from the station mean1979: 7.1 C, +0.1 C from the station mean1980: 6.8 C, -0.2 C from the station mean1981: 7.3 C, +0.3 C from the station mean1982: 6.0 C, -1.0 C from the station mean1983: 6.5 C, -0.5 C from the station mean1949195519601965197019751980
One stripe for each of 32 complete years at Woodbridge, 1949 to 1983. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 1972, at 5.9 C (42.6 F), and the warmest was 1949, at 8.3 C (46.9 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Woodbridge as warming stripes, 1949 to 1983
YearAnnual mean temperatureDifference from the station mean
19498.3 C+1.32 C
19506.7 C-0.32 C
19517.1 C+0.11 C
19527.8 C+0.77 C
19538.2 C+1.26 C
19547.0 C+0.06 C
19557.6 C+0.62 C
19566.5 C-0.52 C
19577.2 C+0.24 C
19586.4 C-0.57 C
19597.2 C+0.21 C
19606.5 C-0.49 C
19617.1 C+0.16 C
19647.0 C+0.03 C
19656.7 C-0.30 C
19667.0 C-0.03 C
19676.7 C-0.28 C
19697.1 C+0.12 C
19707.0 C-0.03 C
19717.2 C+0.26 C
19725.9 C-1.09 C
19737.7 C+0.71 C
19746.4 C-0.54 C
19757.5 C+0.54 C
19766.4 C-0.63 C
19777.2 C+0.25 C
19786.4 C-0.54 C
19797.1 C+0.15 C
19806.8 C-0.20 C
19817.3 C+0.30 C
19826.0 C-0.95 C
19836.5 C-0.48 C

The annual mean temperature here has fallen by 0.21 C (0.03 to 0.39) per decade over 1949 to 1983. In Fahrenheit: 0.4 F (0.1 to 0.7) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Woodbridge
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.21 C (-0.39 to -0.03) per decade-0.4 F (-0.7 to -0.1) per decade1949 to 198332Fall
Mean daily maximum-0.3 C (-0.5 to -0.1) per decade-0.6 F (-0.9 to -0.2) per decade1949 to 198332Fall
Mean daily minimum-0.1 C (-0.3 to 0.1) per decade-0.2 F (-0.5 to 0.2) per decade1949 to 198332Not 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

1948 to 1983
Yearly extremes at Woodbridge: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)197533.3 C (91.9 F)36
Coldest night (TNn)-33.3 C (-27.9 F)1976-26.4 C (-15.5 F)36
Wettest day (Rx1day)121.2 mm (4.8 in)195443.3 mm (1.7 in)36
Wettest five days (Rx5day)159.8 mm (6.3 in)195467.7 mm (2.7 in)36
Longest dry spell (CDD)30 days196318 days36

Hottest day (TXx)

Hottest day (TXx) at Woodbridge by year The hottest day of the year at Woodbridge, 1948 to 1983. The record is 37.2 C (99.0 F) in 1975, marked on the chart; the median year is 33.3 C (91.9 F). 20253035401950196019701980Record: 37.2 C (99.0 F) in 1975
The hottest day of the year at Woodbridge, 1948 to 1983. The record is 37.2 C (99.0 F) in 1975, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Woodbridge by year
YearHottest day (TXx)
194821.1 C (70.0 F)
194935.6 C (96.1 F)
195031.7 C (89.1 F)
195131.7 C (89.1 F)
195236.1 C (97.0 F)
195336.1 C (97.0 F)
195432.2 C (90.0 F)
195536.1 C (97.0 F)
195632.2 C (90.0 F)
195734.4 C (93.9 F)
195831.7 C (89.1 F)
195935.6 C (96.1 F)
196032.8 C (91.0 F)
196131.1 C (88.0 F)
196233.3 C (91.9 F)
196334.4 C (93.9 F)
196435.0 C (95.0 F)
196533.9 C (93.0 F)
196635.0 C (95.0 F)
196731.7 C (89.1 F)
196833.3 C (91.9 F)
196933.3 C (91.9 F)
197032.2 C (90.0 F)
197133.3 C (91.9 F)
197233.3 C (91.9 F)
197335.0 C (95.0 F)
197432.2 C (90.0 F)
197537.2 C (99.0 F)
197631.7 C (89.1 F)
197735.0 C (95.0 F)
197836.0 C (96.8 F)
197932.0 C (89.6 F)
198033.5 C (92.3 F)
198132.5 C (90.5 F)
198231.5 C (88.7 F)
198334.5 C (94.1 F)

Coldest night (TNn)

Coldest night (TNn) at Woodbridge by year The coldest night of the year at Woodbridge, 1948 to 1983. The record is -33.3 C (-27.9 F) in 1976, marked on the chart; the median year is -26.4 C (-15.5 F). -35-30-25-201950196019701980Record: -33.3 C (-27.9 F) in 1976
The coldest night of the year at Woodbridge, 1948 to 1983. The record is -33.3 C (-27.9 F) in 1976, marked on the chart; the median year is -26.4 C (-15.5 F).
Coldest night (TNn) at Woodbridge by year
YearColdest night (TNn)
1948-21.7 C (-7.1 F)
1949-22.2 C (-8.0 F)
1950-29.4 C (-20.9 F)
1951-26.7 C (-16.1 F)
1952-25.0 C (-13.0 F)
1953-20.6 C (-5.1 F)
1954-24.4 C (-11.9 F)
1955-26.7 C (-16.1 F)
1956-21.1 C (-6.0 F)
1957-25.6 C (-14.1 F)
1958-26.7 C (-16.1 F)
1959-28.9 C (-20.0 F)
1960-25.6 C (-14.1 F)
1961-26.7 C (-16.1 F)
1962-25.6 C (-14.1 F)
1963-28.9 C (-20.0 F)
1964-25.6 C (-14.1 F)
1965-26.1 C (-15.0 F)
1966-27.2 C (-17.0 F)
1967-27.8 C (-18.0 F)
1968-27.2 C (-17.0 F)
1969-21.7 C (-7.1 F)
1970-30.0 C (-22.0 F)
1971-27.8 C (-18.0 F)
1972-25.0 C (-13.0 F)
1973-23.9 C (-11.0 F)
1974-25.6 C (-14.1 F)
1975-25.6 C (-14.1 F)
1976-33.3 C (-27.9 F)
1977-32.8 C (-27.0 F)
1978-24.5 C (-12.1 F)
1979-30.0 C (-22.0 F)
1980-30.0 C (-22.0 F)
1981-32.5 C (-26.5 F)
1982-27.5 C (-17.5 F)
1983-22.0 C (-7.6 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Woodbridge by year The wettest day of the year at Woodbridge, 1948 to 1983. The record is 121.2 mm (4.8 in) in 1954, marked on the chart; the median year is 43.3 mm (1.7 in). 02550751001251950196019701980Record: 121.2 mm (4.8 in) in 1954
The wettest day of the year at Woodbridge, 1948 to 1983. The record is 121.2 mm (4.8 in) in 1954, marked on the chart; the median year is 43.3 mm (1.7 in).
Wettest day (Rx1day) at Woodbridge by year
YearWettest day (Rx1day)
194830.7 mm (1.2 in)
194943.2 mm (1.7 in)
195038.6 mm (1.5 in)
195155.9 mm (2.2 in)
195238.9 mm (1.5 in)
195348.0 mm (1.9 in)
1954121.2 mm (4.8 in)
195562.0 mm (2.4 in)
195680.3 mm (3.2 in)
195746.5 mm (1.8 in)
195845.2 mm (1.8 in)
195929.2 mm (1.1 in)
196063.0 mm (2.5 in)
196136.8 mm (1.4 in)
196244.7 mm (1.8 in)
196325.7 mm (1.0 in)
196440.9 mm (1.6 in)
196536.3 mm (1.4 in)
196630.7 mm (1.2 in)
196764.5 mm (2.5 in)
196879.0 mm (3.1 in)
196952.8 mm (2.1 in)
197024.4 mm (1.0 in)
197157.9 mm (2.3 in)
197232.5 mm (1.3 in)
197322.6 mm (0.9 in)
197445.7 mm (1.8 in)
197541.1 mm (1.6 in)
197634.8 mm (1.4 in)
197754.8 mm (2.2 in)
197847.5 mm (1.9 in)
197943.4 mm (1.7 in)
198042.5 mm (1.7 in)
198140.6 mm (1.6 in)
198247.2 mm (1.9 in)
198330.6 mm (1.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Woodbridge by year The wettest five days of the year at Woodbridge, 1948 to 1983. The record is 159.8 mm (6.3 in) in 1954, marked on the chart; the median year is 67.7 mm (2.7 in). 0501001502001950196019701980Record: 159.8 mm (6.3 in) in 1954
The wettest five days of the year at Woodbridge, 1948 to 1983. The record is 159.8 mm (6.3 in) in 1954, marked on the chart; the median year is 67.7 mm (2.7 in).
Wettest five days (Rx5day) at Woodbridge by year
YearWettest five days (Rx5day)
194837.8 mm (1.5 in)
194946.3 mm (1.8 in)
195056.0 mm (2.2 in)
195168.9 mm (2.7 in)
195280.8 mm (3.2 in)
195360.2 mm (2.4 in)
1954159.8 mm (6.3 in)
195576.0 mm (3.0 in)
1956109.7 mm (4.3 in)
195784.9 mm (3.3 in)
195854.2 mm (2.1 in)
195952.6 mm (2.1 in)
196080.5 mm (3.2 in)
196138.6 mm (1.5 in)
196259.2 mm (2.3 in)
196348.8 mm (1.9 in)
196473.4 mm (2.9 in)
196570.6 mm (2.8 in)
196667.6 mm (2.7 in)
196795.0 mm (3.7 in)
196896.7 mm (3.8 in)
196982.3 mm (3.2 in)
197041.7 mm (1.6 in)
197182.5 mm (3.2 in)
197243.7 mm (1.7 in)
197367.8 mm (2.7 in)
197473.4 mm (2.9 in)
197546.2 mm (1.8 in)
197658.9 mm (2.3 in)
197777.0 mm (3.0 in)
197880.2 mm (3.2 in)
197964.5 mm (2.5 in)
198054.0 mm (2.1 in)
198173.7 mm (2.9 in)
198267.3 mm (2.6 in)
198362.0 mm (2.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Woodbridge by year The longest dry spell of the year at Woodbridge, 1948 to 1983. The record is 30 days in 1963, marked on the chart; the median year is 18 days. 01020301950196019701980Record: 30 days in 1963
The longest dry spell of the year at Woodbridge, 1948 to 1983. The record is 30 days in 1963, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Woodbridge by year
YearLongest dry spell (CDD)
19489 days
194929 days
195014 days
195119 days
195217 days
195313 days
195428 days
195524 days
195626 days
195722 days
195815 days
195919 days
196013 days
196122 days
196223 days
196330 days
196422 days
196517 days
196624 days
196720 days
196818 days
196914 days
197016 days
197114 days
197213 days
197324 days
197415 days
197520 days
197614 days
197722 days
197817 days
197916 days
198017 days
198113 days
198217 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

32 years with a frost

Across 32 years with a frost, the median last spring frost at Woodbridge falls on 18 May and the median first autumn frost on 27 September, which leaves a median of 135 days between them.

Fitted over all years, the growing season changes by +0.9 days per decade at this station.

Frost dates and growing season at Woodbridge
MeasureMedian, all yearsEarliest periodRecent period (1951 to 1983)Recent against earliestFitted trend
Last spring frost18 Mayn/a18 Mayn/a-2.0 days per decade
First autumn frost27 Septembern/a27 Septembern/a-1.0 days per decade
Growing days135 daysn/a135 daysn/a+0.9 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

34 years, 1949 to 1983

A day with at least 42.8 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 116.9 mm (4.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Woodbridge: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years42.8 mm (1.7 in)
5 years58.3 mm (2.3 in)
10 years70.1 mm (2.8 in)
25 years87.1 mm (3.4 in)
50 years101.3 mm (4.0 in)Longer than the 34 years of record
100 years116.9 mm (4.6 in)Longer than the 34 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, 34 years of values from 1949 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: 121.2 mm (4.8 in) in 1954; 80.3 mm (3.2 in) in 1956; 79.0 mm (3.1 in) in 1968.

Download the Data

  • Data for Woodbridge standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Woodbridge threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).