Built 2026-10-15 (15 October 2026)

Fort Good Hope A Weather Records (CA002201400)

Record envelope, standing records and threshold days for Fort Good Hope A (CA002201400), Northwest Territories, Canada, with 67 years of record.

Key Facts for Fort Good Hope A

  • Fort Good Hope A (CA002201400) is a weather station in Northwest Territories, Canada at 66.23 latitude and -128.65 longitude, 81 m (266 ft) above sea level.
  • The station reports from 1944 to 2010, 67 years of record.
  • 1,464 records set at Fort Good Hope A still stand.
  • Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
  • Fort Good Hope A set a daily record high minimum temperature of -18.5 C (-1.3 F) on 2 December 1983.

About the Station

  • Location: Northwest Territories, Canada, 66.23 latitude, -128.65 longitude.
  • Elevation: 81 m (266 ft).
  • Period of record: 1944 to 2010, 67 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 Fort Good Hope A, with 2026 drawn through them The band shows the record high and record low for each calendar day at Fort Good Hope A. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Fort Good Hope A. 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 Fort Good Hope A, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan6.7 C (44.1 F)-53.9 C (-65.0 F)n/an/a
Feb5.6 C (42.1 F)-55.6 C (-68.1 F)n/an/a
Mar8.3 C (46.9 F)-46.7 C (-52.1 F)n/an/a
Apr18.3 C (64.9 F)-40.0 C (-40.0 F)n/an/a
May27.2 C (81.0 F)-23.9 C (-11.0 F)n/an/a
Jun32.2 C (90.0 F)-3.3 C (26.1 F)n/an/a
Jul34.4 C (93.9 F)-1.1 C (30.0 F)n/an/a
Aug33.9 C (93.0 F)-5.6 C (21.9 F)n/an/a
Sep28.3 C (82.9 F)-17.0 C (1.4 F)n/an/a
Oct18.9 C (66.0 F)-36.1 C (-33.0 F)n/an/a
Nov2.8 C (37.0 F)-47.2 C (-53.0 F)n/an/a
Dec3.9 C (39.0 F)-52.2 C (-62.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Fort Good Hope A by the year they were set 1,464 records at Fort Good Hope A still stand. 1956 holds the most, with 64. 0204060801944: 311945: 291946: 251947: 481948: 611949: 491950: 251951: 491952: 291953: 361954: 611955: 421956: 641957: 641958: 191959: 371960: 161961: 281962: 431963: 381964: 461965: 471966: 411967: 301968: 311969: 581970: 381971: 241972: 441973: 291974: 531975: 601976: 391977: 461978: 121979: 161981: 31982: 361983: 171944194819521956196019641968197219761981
1,464 records at Fort Good Hope A still stand. 1956 holds the most, with 64.
Standing records at Fort Good Hope A by the year they were set
Year setStanding records
194431
194529
194625
194748
194861
194949
195025
195149
195229
195336
195461
195542
195664
195764
195819
195937
196016
196128
196243
196338
196446
196547
196641
196730
196831
196958
197038
197124
197244
197329
197453
197560
197639
197746
197812
197916
19813
198236
198317

Wettest Day of Each Month

Aug: 59.2 mm (2.3 in)
Record daily precipitation for each month at Fort Good Hope A The wettest day on record for each calendar month at Fort Good Hope A. The most was 59.2 mm (2.3 in) on 14 August 1949. 0204060 Jan: 12.7 mm (0.5 in), 24 January 1950 Jan Feb: 13.7 mm (0.5 in), 26 February 1962 Feb Mar: 18.5 mm (0.7 in), 31 March 1967 Mar Apr: 15.7 mm (0.6 in), 15 April 1971 Apr May: 17.3 mm (0.7 in), 28 May 1976 May Jun: 40.6 mm (1.6 in), 28 June 1965 Jun Jul: 52.8 mm (2.1 in), 12 July 1955 Jul Aug: 59.2 mm (2.3 in), 14 August 1949 Aug Sep: 27.4 mm (1.1 in), 18 September 1947 Sep Oct: 16.8 mm (0.7 in), 10 October 1967 Oct Nov: 14.0 mm (0.6 in), 23 November 1956 Nov Dec: 13.0 mm (0.5 in), 11 December 1962 Dec
The wettest day on record for each calendar month at Fort Good Hope A. The most was 59.2 mm (2.3 in) on 14 August 1949.
Record daily precipitation for each month at Fort Good Hope A
MonthRecord daily precipitation (mm)Date
Jan12.7 mm (0.5 in)24 January 1950
Feb13.7 mm (0.5 in)26 February 1962
Mar18.5 mm (0.7 in)31 March 1967
Apr15.7 mm (0.6 in)15 April 1971
May17.3 mm (0.7 in)28 May 1976
Jun40.6 mm (1.6 in)28 June 1965
Jul52.8 mm (2.1 in)12 July 1955
Aug59.2 mm (2.3 in)14 August 1949
Sep27.4 mm (1.1 in)18 September 1947
Oct16.8 mm (0.7 in)10 October 1967
Nov14.0 mm (0.6 in)23 November 1956
Dec13.0 mm (0.5 in)11 December 1962

Period of Record Coverage

1944 to 1983
Days with data per year at Fort Good Hope A 39 years of record at Fort Good Hope A, 1944 to 1983. 12 years have data for under 90 percent of days and are left out of rankings: 1944, 1950, 1951, 1960, 1961, 1971, 1972, 1978 and others. 1944: 153 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 360 of 365 days1950: 273 of 365 days1951: 275 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 364 of 365 days1959: 360 of 365 days1960: 176 of 366 days1961: 209 of 365 days1962: 359 of 365 days1963: 352 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 364 of 366 days1969: 365 of 365 days1970: 335 of 365 days1971: 297 of 365 days1972: 304 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 189 of 365 days1979: 167 of 365 days1981: 42 of 365 days1982: 233 of 365 days1983: 237 of 365 days1945195019551960196519701975
39 years of record at Fort Good Hope A, 1944 to 1983. 12 years have data for under 90 percent of days and are left out of rankings: 1944, 1950, 1951, 1960, 1961, 1971, 1972, 1978 and others.
Days with data per year at Fort Good Hope A
YearDays with dataShare of yearComplete
194415342%No
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
194936099%Yes
195027375%No
195127575%No
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958364100%Yes
195936099%Yes
196017648%No
196120957%No
196235998%Yes
196335296%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
196836499%Yes
1969365100%Yes
197033592%Yes
197129781%No
197230483%No
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
197818952%No
197916746%No
19814212%No
198223364%No
198323765%No

Latest Records

20
Latest records at Fort Good Hope A
DateStationRecordValueBeat old record byOld record stoodSignificance
2 December 1983Fort Good Hope A, CAdaily high min-18.5 C (-1.3 F)0.9 C (1.6 F)24 years12 of 100 (Routine)
15 November 1983Fort Good Hope A, CAdaily high min-11.0 C (12.2 F)1.2 C (2.2 F)30 years14 of 100 (Routine)
13 October 1983Fort Good Hope A, CAdaily rain4.0 mm (0.16 in)0.7 mm (0.03 in)9 years8 of 100 (Routine)
13 October 1983Fort Good Hope A, CAdaily snowfall4.0 cm (1.6 in)0.7 cm (0.3 in)9 years8 of 100 (Routine)
28 September 1983Fort Good Hope A, CAmonthly low min-17.0 C (1.4 F)2.0 C (3.6 F)34 years28 of 100 (Routine)
27 September 1983Fort Good Hope A, CAmonthly low min (Tie)-15.0 C (5.0 F)tie34 years6 of 100 (Routine)
22 September 1983Fort Good Hope A, CAdaily snowfall2.0 cm (0.8 in)0.5 cm (0.2 in)28 years14 of 100 (Routine)
19 September 1983Fort Good Hope A, CAdaily low min-4.0 C (24.8 F)0.1 C (0.2 F)32 years13 of 100 (Routine)
31 August 1983Fort Good Hope A, CAdaily high min (Tie)10.0 C (50.0 F)tie10 years1 of 100 (Routine)
18 August 1983Fort Good Hope A, CAdaily low min (Tie)0.0 C (32.0 F)tie36 years3 of 100 (Routine)
9 August 1983Fort Good Hope A, CAdaily high min15.5 C (59.9 F)2.7 C (4.9 F)33 years20 of 100 (Routine)
27 July 1983Fort Good Hope A, CAdaily rain25.0 mm (1.0 in)18.6 mm (0.7 in)30 years37 of 100 (Notable)
24 July 1983Fort Good Hope A, CAdaily high max (Tie)30.0 C (86.0 F)tie36 years3 of 100 (Routine)
29 June 1983Fort Good Hope A, CAdaily high min15.5 C (59.9 F)0.5 C (0.9 F)34 years15 of 100 (Routine)
28 June 1983Fort Good Hope A, CAdaily high min16.0 C (60.8 F)1.0 C (1.8 F)8 years8 of 100 (Routine)
27 June 1983Fort Good Hope A, CAdaily high max29.5 C (85.1 F)0.1 C (0.2 F)32 years13 of 100 (Routine)
23 June 1983Fort Good Hope A, CAdaily low max11.0 C (51.8 F)1.2 C (2.2 F)25 years13 of 100 (Routine)
24 May 1983Fort Good Hope A, CAdaily low min-16.0 C (3.2 F)9.3 C (16.7 F)33 years32 of 100 (Routine)
20 May 1983Fort Good Hope A, CAdaily low min (Tie)-5.0 C (23.0 F)tie28 years3 of 100 (Routine)
19 May 1983Fort Good Hope A, CAdaily low min-13.5 C (7.7 F)9.1 C (16.4 F)13 years25 of 100 (Routine)

Climate Trend

25 complete years, 1945 to 1977
Annual mean temperature at Fort Good Hope A as warming stripes, 1945 to 1977 One stripe for each of 25 complete years at Fort Good Hope A, 1945 to 1977. Blue stripes are years cooler than the station's own mean of -7.7 C (18.2 F); red stripes are warmer. The coolest year was 1974, at -9.8 C (14.3 F), and the warmest was 1962, at -6.2 C (20.9 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1945: -7.6 C, +0.1 C from the station mean1946: -7.9 C, -0.2 C from the station mean1947: -7.4 C, +0.2 C from the station mean1948: -8.2 C, -0.6 C from the station mean1949: -6.8 C, +0.9 C from the station mean1952: -7.5 C, +0.2 C from the station mean1953: -6.9 C, +0.8 C from the station mean1954: -7.5 C, +0.2 C from the station mean1955: -8.4 C, -0.7 C from the station mean1956: -8.7 C, -1.0 C from the station mean1957: -7.0 C, +0.7 C from the station mean1959: -9.1 C, -1.4 C from the station mean1962: -6.2 C, +1.5 C from the station mean1963: -7.1 C, +0.6 C from the station mean1964: -8.4 C, -0.7 C from the station mean1965: -7.8 C, -0.1 C from the station mean1966: -8.8 C, -1.1 C from the station mean1967: -7.6 C, 0.0 C from the station mean1968: -7.1 C, +0.6 C from the station mean1969: -7.1 C, +0.5 C from the station mean1973: -6.8 C, +0.8 C from the station mean1974: -9.8 C, -2.2 C from the station mean1975: -8.3 C, -0.6 C from the station mean1976: -6.6 C, +1.0 C from the station mean1977: -7.1 C, +0.5 C from the station mean1945195019551960196519701975
One stripe for each of 25 complete years at Fort Good Hope A, 1945 to 1977. Blue stripes are years cooler than the station's own mean of -7.7 C (18.2 F); red stripes are warmer. The coolest year was 1974, at -9.8 C (14.3 F), and the warmest was 1962, at -6.2 C (20.9 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Fort Good Hope A as warming stripes, 1945 to 1977
YearAnnual mean temperatureDifference from the station mean
1945-7.6 C+0.11 C
1946-7.9 C-0.21 C
1947-7.4 C+0.24 C
1948-8.2 C-0.56 C
1949-6.8 C+0.89 C
1952-7.5 C+0.15 C
1953-6.9 C+0.80 C
1954-7.5 C+0.18 C
1955-8.4 C-0.73 C
1956-8.7 C-0.99 C
1957-7.0 C+0.65 C
1959-9.1 C-1.41 C
1962-6.2 C+1.48 C
1963-7.1 C+0.59 C
1964-8.4 C-0.74 C
1965-7.8 C-0.15 C
1966-8.8 C-1.10 C
1967-7.6 C+0.02 C
1968-7.1 C+0.55 C
1969-7.1 C+0.53 C
1973-6.8 C+0.82 C
1974-9.8 C-2.16 C
1975-8.3 C-0.62 C
1976-6.6 C+1.02 C
1977-7.1 C+0.54 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1944 to 1983
Yearly extremes at Fort Good Hope A: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)34.4 C (93.9 F)195430.6 C (87.1 F)39
Coldest night (TNn)-55.6 C (-68.1 F)1947-50.0 C (-58.0 F)39
Wettest day (Rx1day)59.2 mm (2.3 in)194918.0 mm (0.7 in)39
Wettest five days (Rx5day)106.0 mm (4.2 in)194928.8 mm (1.1 in)39
Longest dry spell (CDD)66 days194736 days39

Hottest day (TXx)

Hottest day (TXx) at Fort Good Hope A by year The hottest day of the year at Fort Good Hope A, 1944 to 1983. The record is 34.4 C (93.9 F) in 1954, marked on the chart; the median year is 30.6 C (87.1 F). 15202530351950196019701980Record: 34.4 C (93.9 F) in 1954
The hottest day of the year at Fort Good Hope A, 1944 to 1983. The record is 34.4 C (93.9 F) in 1954, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Fort Good Hope A by year
YearHottest day (TXx)
194431.7 C (89.1 F)
194529.4 C (84.9 F)
194630.0 C (86.0 F)
194730.6 C (87.1 F)
194832.8 C (91.0 F)
194931.7 C (89.1 F)
195033.3 C (91.9 F)
195131.1 C (88.0 F)
195229.4 C (84.9 F)
195330.6 C (87.1 F)
195434.4 C (93.9 F)
195532.2 C (90.0 F)
195629.4 C (84.9 F)
195730.6 C (87.1 F)
195830.0 C (86.0 F)
195928.9 C (84.0 F)
196016.1 C (61.0 F)
196130.0 C (86.0 F)
196231.7 C (89.1 F)
196331.1 C (88.0 F)
196430.0 C (86.0 F)
196527.8 C (82.0 F)
196631.1 C (88.0 F)
196731.1 C (88.0 F)
196830.0 C (86.0 F)
196932.2 C (90.0 F)
197028.9 C (84.0 F)
197130.6 C (87.1 F)
197228.3 C (82.9 F)
197333.3 C (91.9 F)
197430.6 C (87.1 F)
197534.4 C (93.9 F)
197632.8 C (91.0 F)
197730.5 C (86.9 F)
197825.0 C (77.0 F)
197931.5 C (88.7 F)
198127.0 C (80.6 F)
198232.5 C (90.5 F)
198330.5 C (86.9 F)

Coldest night (TNn)

Coldest night (TNn) at Fort Good Hope A by year The coldest night of the year at Fort Good Hope A, 1944 to 1983. The record is -55.6 C (-68.1 F) in 1947, marked on the chart; the median year is -50.0 C (-58.0 F). -60-40-2001950196019701980Record: -55.6 C (-68.1 F) in 1947
The coldest night of the year at Fort Good Hope A, 1944 to 1983. The record is -55.6 C (-68.1 F) in 1947, marked on the chart; the median year is -50.0 C (-58.0 F).
Coldest night (TNn) at Fort Good Hope A by year
YearColdest night (TNn)
1944-42.8 C (-45.0 F)
1945-43.3 C (-45.9 F)
1946-50.0 C (-58.0 F)
1947-55.6 C (-68.1 F)
1948-52.2 C (-62.0 F)
1949-48.9 C (-56.0 F)
1950-48.3 C (-54.9 F)
1951-51.7 C (-61.1 F)
1952-50.6 C (-59.1 F)
1953-46.1 C (-51.0 F)
1954-50.6 C (-59.1 F)
1955-50.0 C (-58.0 F)
1956-50.0 C (-58.0 F)
1957-47.8 C (-54.0 F)
1958-49.4 C (-56.9 F)
1959-50.0 C (-58.0 F)
1960-47.8 C (-54.0 F)
1961-49.4 C (-56.9 F)
1962-50.0 C (-58.0 F)
1963-49.4 C (-56.9 F)
1964-46.7 C (-52.1 F)
1965-50.0 C (-58.0 F)
1966-50.0 C (-58.0 F)
1967-50.6 C (-59.1 F)
1968-53.9 C (-65.0 F)
1969-50.0 C (-58.0 F)
1970-47.2 C (-53.0 F)
1971-52.8 C (-63.0 F)
1972-50.6 C (-59.1 F)
1973-50.0 C (-58.0 F)
1974-47.8 C (-54.0 F)
1975-53.9 C (-65.0 F)
1976-50.6 C (-59.1 F)
1977-46.1 C (-51.0 F)
1978-44.0 C (-47.2 F)
1979-48.5 C (-55.3 F)
1981-8.0 C (17.6 F)
1982-47.0 C (-52.6 F)
1983-50.0 C (-58.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Fort Good Hope A by year The wettest day of the year at Fort Good Hope A, 1944 to 1983. The record is 59.2 mm (2.3 in) in 1949, marked on the chart; the median year is 18.0 mm (0.7 in). 02040601950196019701980Record: 59.2 mm (2.3 in) in 1949
The wettest day of the year at Fort Good Hope A, 1944 to 1983. The record is 59.2 mm (2.3 in) in 1949, marked on the chart; the median year is 18.0 mm (0.7 in).
Wettest day (Rx1day) at Fort Good Hope A by year
YearWettest day (Rx1day)
194418.0 mm (0.7 in)
194532.0 mm (1.3 in)
194611.2 mm (0.4 in)
194727.4 mm (1.1 in)
194825.1 mm (1.0 in)
194959.2 mm (2.3 in)
195012.7 mm (0.5 in)
195123.4 mm (0.9 in)
195225.9 mm (1.0 in)
195317.5 mm (0.7 in)
19547.1 mm (0.28 in)
195552.8 mm (2.1 in)
195649.5 mm (1.9 in)
195718.0 mm (0.7 in)
195812.4 mm (0.5 in)
195930.5 mm (1.2 in)
19608.6 mm (0.34 in)
196117.5 mm (0.7 in)
196213.7 mm (0.5 in)
196319.8 mm (0.8 in)
196419.8 mm (0.8 in)
196540.6 mm (1.6 in)
196615.2 mm (0.6 in)
196718.5 mm (0.7 in)
196810.4 mm (0.4 in)
196952.1 mm (2.1 in)
197040.1 mm (1.6 in)
197138.1 mm (1.5 in)
197212.7 mm (0.5 in)
197310.2 mm (0.4 in)
197422.4 mm (0.9 in)
197513.5 mm (0.5 in)
197617.3 mm (0.7 in)
197714.0 mm (0.6 in)
197812.5 mm (0.5 in)
197915.8 mm (0.6 in)
198124.6 mm (1.0 in)
198212.0 mm (0.5 in)
198325.0 mm (1.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Fort Good Hope A by year The wettest five days of the year at Fort Good Hope A, 1944 to 1983. The record is 106.0 mm (4.2 in) in 1949, marked on the chart; the median year is 28.8 mm (1.1 in). 02550751001251950196019701980Record: 106.0 mm (4.2 in) in 1949
The wettest five days of the year at Fort Good Hope A, 1944 to 1983. The record is 106.0 mm (4.2 in) in 1949, marked on the chart; the median year is 28.8 mm (1.1 in).
Wettest five days (Rx5day) at Fort Good Hope A by year
YearWettest five days (Rx5day)
194426.6 mm (1.0 in)
194555.7 mm (2.2 in)
194623.4 mm (0.9 in)
194737.1 mm (1.5 in)
194832.1 mm (1.3 in)
1949106.0 mm (4.2 in)
195016.0 mm (0.6 in)
195133.3 mm (1.3 in)
195232.8 mm (1.3 in)
195323.4 mm (0.9 in)
195413.7 mm (0.5 in)
195555.1 mm (2.2 in)
195660.9 mm (2.4 in)
195726.3 mm (1.0 in)
195821.8 mm (0.9 in)
195946.0 mm (1.8 in)
196013.3 mm (0.5 in)
196135.6 mm (1.4 in)
196233.0 mm (1.3 in)
196328.8 mm (1.1 in)
196429.2 mm (1.1 in)
196552.0 mm (2.0 in)
196627.9 mm (1.1 in)
196738.6 mm (1.5 in)
196824.1 mm (0.9 in)
1969100.6 mm (4.0 in)
197040.1 mm (1.6 in)
197157.7 mm (2.3 in)
197227.9 mm (1.1 in)
197323.6 mm (0.9 in)
197458.1 mm (2.3 in)
197517.0 mm (0.7 in)
197628.0 mm (1.1 in)
197732.0 mm (1.3 in)
197822.7 mm (0.9 in)
197924.1 mm (0.9 in)
198125.0 mm (1.0 in)
198223.0 mm (0.9 in)
198326.4 mm (1.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Fort Good Hope A by year The longest dry spell of the year at Fort Good Hope A, 1944 to 1983. The record is 66 days in 1947, marked on the chart; the median year is 36 days. 0204060801950196019701980Record: 66 days in 1947
The longest dry spell of the year at Fort Good Hope A, 1944 to 1983. The record is 66 days in 1947, marked on the chart; the median year is 36 days.
Longest dry spell (CDD) at Fort Good Hope A by year
YearLongest dry spell (CDD)
194426 days
194536 days
194641 days
194766 days
194841 days
194929 days
195056 days
195149 days
195236 days
195330 days
195445 days
195520 days
195639 days
195732 days
195826 days
195942 days
196055 days
196135 days
196224 days
196336 days
196419 days
196541 days
196631 days
196736 days
196841 days
196936 days
197043 days
197120 days
197238 days
197340 days
197429 days
197523 days
197628 days
197748 days
197838 days
197938 days
19818 days
198222 days
198321 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

25 years with a frost

Across 25 years with a frost, the median last spring frost at Fort Good Hope A falls on 30 May and the median first autumn frost on 14 August, which leaves a median of 76 days between them.

Fitted over all years, the growing season changes by +5.3 days per decade at this station.

Frost dates and growing season at Fort Good Hope A
MeasureMedian, all yearsEarliest periodRecent period (1945 to 1977)Recent against earliestFitted trend
Last spring frost30 Mayn/a30 Mayn/a-2.6 days per decade
First autumn frost14 Augustn/a14 Augustn/a+2.6 days per decade
Growing days76 daysn/a76 daysn/a+5.3 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.

Download the Data

  • Data for Fort Good Hope A standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Fort Good Hope A 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).