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Built 2026-10-16 (16 October 2026)

Isachsen (Aut) Weather Records (CA002402604)

Record envelope, standing records and threshold days for Isachsen (Aut) (CA002402604), Nunavut, Canada, with 78 years of record.

Key Facts for Isachsen (Aut)

  • Isachsen (Aut) (CA002402604) is a weather station in Nunavut, Canada at 78.80 latitude and -103.55 longitude, 58 m (190 ft) above sea level.
  • The station reports from 1948 to 2025, 78 years of record.
  • 1,460 records set at Isachsen (Aut) still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Nunavut, Canada, 78.80 latitude, -103.55 longitude.
  • Elevation: 58 m (190 ft).
  • Period of record: 1948 to 2025, 78 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Isachsen (Aut), with 2026 drawn through them The band shows the record high and record low for each calendar day at Isachsen (Aut). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-20020 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Isachsen (Aut). 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 Isachsen (Aut), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan-3.9 C (25.0 F)-50.6 C (-59.1 F)n/an/a
Feb-12.0 C (10.4 F)-50.6 C (-59.1 F)n/an/a
Mar-16.1 C (3.0 F)-47.0 C (-52.6 F)n/an/a
Apr-4.0 C (24.8 F)-42.2 C (-44.0 F)n/an/a
May-2.2 C (28.0 F)-23.9 C (-11.0 F)n/an/a
Jun8.3 C (46.9 F)-14.0 C (6.8 F)n/an/a
Jul18.9 C (66.0 F)-2.2 C (28.0 F)n/an/a
Aug12.8 C (55.0 F)-8.3 C (17.1 F)n/an/a
Sep2.8 C (37.0 F)-27.2 C (-17.0 F)n/an/a
Oct-1.7 C (28.9 F)-35.6 C (-32.1 F)n/an/a
Nov-17.0 C (1.4 F)-42.0 C (-43.6 F)n/an/a
Dec-9.4 C (15.1 F)-47.0 C (-52.6 F)n/an/a

Which Years Hold Standing Records

1,460 standing records
Standing records at Isachsen (Aut) by the year they were set 1,460 records at Isachsen (Aut) still stand. 1958 holds the most, with 646. 02004006008001957: 2411958: 6461959: 1191977: 2011978: 25319571958195919771978
1,460 records at Isachsen (Aut) still stand. 1958 holds the most, with 646.
Standing records at Isachsen (Aut) by the year they were set
Year setStanding records
1957241
1958646
1959119
1977201
1978253

Wettest Day of Each Month

Aug: 20.1 mm (0.8 in)
Record daily precipitation for each month at Isachsen (Aut) The wettest day on record for each calendar month at Isachsen (Aut). The most was 20.1 mm (0.8 in) on 13 August 1951. 0102030 Jan: 3.0 mm (0.12 in), 24 January 1949 Jan Feb: 2.0 mm (0.08 in), 21 February 1959 Feb Mar: 2.0 mm (0.08 in), 2 March 1978 Mar Apr: 5.1 mm (0.20 in), 18 April 1952 Apr May: 7.9 mm (0.31 in), 1 May 1978 May Jun: 6.1 mm (0.24 in), 2 June 1978 Jun Jul: 10.9 mm (0.4 in), 18 July 1952 Jul Aug: 20.1 mm (0.8 in), 13 August 1951 Aug Sep: 14.0 mm (0.6 in), 3 September 1977 Sep Oct: 3.0 mm (0.12 in), 3 October 1948 Oct Nov: 4.1 mm (0.16 in), 15 November 1948 Nov Dec: 1.0 mm (0.04 in), 15 December 1950 Dec
The wettest day on record for each calendar month at Isachsen (Aut). The most was 20.1 mm (0.8 in) on 13 August 1951.
Record daily precipitation for each month at Isachsen (Aut)
MonthRecord daily precipitation (mm)Date
Jan3.0 mm (0.12 in)24 January 1949
Feb2.0 mm (0.08 in)21 February 1959
Mar2.0 mm (0.08 in)2 March 1978
Apr5.1 mm (0.20 in)18 April 1952
May7.9 mm (0.31 in)1 May 1978
Jun6.1 mm (0.24 in)2 June 1978
Jul10.9 mm (0.4 in)18 July 1952
Aug20.1 mm (0.8 in)13 August 1951
Sep14.0 mm (0.6 in)3 September 1977
Oct3.0 mm (0.12 in)3 October 1948
Nov4.1 mm (0.16 in)15 November 1948
Dec1.0 mm (0.04 in)15 December 1950

Period of Record Coverage

1957 to 1978
Days with data per year at Isachsen (Aut) 5 years of record at Isachsen (Aut), 1957 to 1978. 4 years have data for under 90 percent of days and are left out of rankings: 1957, 1959, 1977, 1978. 1957: 169 of 365 days1958: 351 of 365 days1959: 86 of 365 days1977: 149 of 365 days1978: 148 of 365 days
5 years of record at Isachsen (Aut), 1957 to 1978. 4 years have data for under 90 percent of days and are left out of rankings: 1957, 1959, 1977, 1978.
Days with data per year at Isachsen (Aut)
YearDays with dataShare of yearComplete
195716946%No
195835196%Yes
19598624%No
197714941%No
197814841%No

Latest Records

0

No records were set at this station in the latest data.

Extremes by Year

1948 to 1978
Yearly extremes at Isachsen (Aut): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)18.9 C (66.0 F)195715.0 C (59.0 F)5
Coldest night (TNn)-50.6 C (-59.1 F)1958-48.3 C (-54.9 F)5
Wettest day (Rx1day)20.1 mm (0.8 in)195110.9 mm (0.4 in)11
Wettest five days (Rx5day)38.6 mm (1.5 in)195115.7 mm (0.6 in)9
Longest dry spell (CDD)16 days19529 days11

Hottest day (TXx)

Hottest day (TXx) at Isachsen (Aut) by year The hottest day of the year at Isachsen (Aut), 1948 to 1978. The record is 18.9 C (66.0 F) in 1957, marked on the chart; the median year is 15.0 C (59.0 F). -30-20-1001020195019551960196519701975Record: 18.9 C (66.0 F) in 1957
The hottest day of the year at Isachsen (Aut), 1948 to 1978. The record is 18.9 C (66.0 F) in 1957, marked on the chart; the median year is 15.0 C (59.0 F).
Hottest day (TXx) at Isachsen (Aut) by year
YearHottest day (TXx)
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
195718.9 C (66.0 F)
195815.6 C (60.1 F)
1959-20.6 C (-5.1 F)
197715.0 C (59.0 F)
19785.0 C (41.0 F)

Coldest night (TNn)

Coldest night (TNn) at Isachsen (Aut) by year The coldest night of the year at Isachsen (Aut), 1948 to 1978. The record is -50.6 C (-59.1 F) in 1958, marked on the chart; the median year is -48.3 C (-54.9 F). -51-50-49-48-47195019551960196519701975Record: -50.6 C (-59.1 F) in 1958
The coldest night of the year at Isachsen (Aut), 1948 to 1978. The record is -50.6 C (-59.1 F) in 1958, marked on the chart; the median year is -48.3 C (-54.9 F).
Coldest night (TNn) at Isachsen (Aut) by year
YearColdest night (TNn)
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1957-48.3 C (-54.9 F)
1958-50.6 C (-59.1 F)
1959-50.6 C (-59.1 F)
1977-47.0 C (-52.6 F)
1978-47.0 C (-52.6 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Isachsen (Aut) by year The wettest day of the year at Isachsen (Aut), 1948 to 1978. The record is 20.1 mm (0.8 in) in 1951, marked on the chart; the median year is 10.9 mm (0.4 in). 0510152025195019551960196519701975Record: 20.1 mm (0.8 in) in 1951
The wettest day of the year at Isachsen (Aut), 1948 to 1978. The record is 20.1 mm (0.8 in) in 1951, marked on the chart; the median year is 10.9 mm (0.4 in).
Wettest day (Rx1day) at Isachsen (Aut) by year
YearWettest day (Rx1day)
19487.9 mm (0.31 in)
19497.9 mm (0.31 in)
19506.1 mm (0.24 in)
195120.1 mm (0.8 in)
195210.9 mm (0.4 in)
195310.9 mm (0.4 in)
195710.9 mm (0.4 in)
195814.0 mm (0.6 in)
19592.0 mm (0.08 in)
197714.0 mm (0.6 in)
19787.9 mm (0.31 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Isachsen (Aut) by year The wettest five days of the year at Isachsen (Aut), 1948 to 1978. The record is 38.6 mm (1.5 in) in 1951, marked on the chart; the median year is 15.7 mm (0.6 in). 10203040195019551960196519701975Record: 38.6 mm (1.5 in) in 1951
The wettest five days of the year at Isachsen (Aut), 1948 to 1978. The record is 38.6 mm (1.5 in) in 1951, marked on the chart; the median year is 15.7 mm (0.6 in).
Wettest five days (Rx5day) at Isachsen (Aut) by year
YearWettest five days (Rx5day)
194813.2 mm (0.5 in)
194916.9 mm (0.7 in)
195014.5 mm (0.6 in)
195138.6 mm (1.5 in)
195212.7 mm (0.5 in)
195319.5 mm (0.8 in)
1957n/a
195815.6 mm (0.6 in)
1959n/a
197729.5 mm (1.2 in)
197815.7 mm (0.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Isachsen (Aut) by year The longest dry spell of the year at Isachsen (Aut), 1948 to 1978. The record is 16 days in 1952, marked on the chart; the median year is 9 days. 05101520195019551960196519701975Record: 16 days in 1952
The longest dry spell of the year at Isachsen (Aut), 1948 to 1978. The record is 16 days in 1952, marked on the chart; the median year is 9 days.
Longest dry spell (CDD) at Isachsen (Aut) by year
YearLongest dry spell (CDD)
19489 days
19499 days
195012 days
19519 days
195216 days
195310 days
19572 days
19583 days
19592 days
19779 days
19787 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.

Download the Data

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