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Built 2026-10-17 (17 October 2026)

Alert Ua Weather Records (CA002400306)

Record envelope, standing records and threshold days for Alert Ua (CA002400306), Nunavut, Canada, with 75 years of record.

Key Facts for Alert Ua

  • Alert Ua (CA002400306) is a weather station in Nunavut, Canada at 82.50 latitude and -62.33 longitude, 65 m (213 ft) above sea level.
  • The station reports from 1950 to 2024, 75 years of record.
  • 1,464 records set at Alert Ua 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, 82.50 latitude, -62.33 longitude.
  • Elevation: 65 m (213 ft).
  • Period of record: 1950 to 2024, 75 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Alert Ua, with 2026 drawn through them The band shows the record high and record low for each calendar day at Alert Ua. 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 Alert Ua. 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 Alert Ua, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan0.0 C (32.0 F)-45.0 C (-49.0 F)n/an/a
Feb-9.0 C (15.8 F)-50.0 C (-58.0 F)n/an/a
Mar-7.8 C (18.0 F)-48.0 C (-54.4 F)n/an/a
Apr0.0 C (32.0 F)-40.0 C (-40.0 F)n/an/a
May5.7 C (42.3 F)-27.0 C (-16.6 F)n/an/a
Jun13.0 C (55.4 F)-13.0 C (8.6 F)n/an/a
Jul16.7 C (62.1 F)-6.3 C (20.7 F)n/an/a
Aug14.4 C (57.9 F)-9.0 C (15.8 F)n/an/a
Sep8.0 C (46.4 F)-27.0 C (-16.6 F)n/an/a
Oct4.0 C (39.2 F)-37.0 C (-34.6 F)n/an/a
Nov-4.0 C (24.8 F)-44.0 C (-47.2 F)n/an/a
Dec3.0 C (37.4 F)-45.0 C (-49.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Alert Ua by the year they were set 1,464 records at Alert Ua still stand. 1979 holds the most, with 226. 01002003001957: 1051958: 1931959: 421977: 811978: 2161979: 2261980: 1851981: 1511982: 1231983: 1421957195819591977197819791980198119821983
1,464 records at Alert Ua still stand. 1979 holds the most, with 226.
Standing records at Alert Ua by the year they were set
Year setStanding records
1957105
1958193
195942
197781
1978216
1979226
1980185
1981151
1982123
1983142

Wettest Day of Each Month

Sep: 26.9 mm (1.1 in)
Record daily precipitation for each month at Alert Ua The wettest day on record for each calendar month at Alert Ua. The most was 26.9 mm (1.1 in) on 14 September 1980. 0102030 Jan: 3.0 mm (0.12 in), 13 January 1958 Jan Feb: 5.1 mm (0.20 in), 23 February 1953 Feb Mar: 6.1 mm (0.24 in), 3 March 1983 Mar Apr: 5.6 mm (0.22 in), 1 April 1982 Apr May: 10.9 mm (0.4 in), 29 May 1952 May Jun: 8.9 mm (0.35 in), 18 June 1951 Jun Jul: 20.3 mm (0.8 in), 15 July 1983 Jul Aug: 16.0 mm (0.6 in), 6 August 1980 Aug Sep: 26.9 mm (1.1 in), 14 September 1980 Sep Oct: 20.1 mm (0.8 in), 14 October 1953 Oct Nov: 5.1 mm (0.20 in), 24 November 1979 Nov Dec: 5.1 mm (0.20 in), 6 December 1958 Dec
The wettest day on record for each calendar month at Alert Ua. The most was 26.9 mm (1.1 in) on 14 September 1980.
Record daily precipitation for each month at Alert Ua
MonthRecord daily precipitation (mm)Date
Jan3.0 mm (0.12 in)13 January 1958
Feb5.1 mm (0.20 in)23 February 1953
Mar6.1 mm (0.24 in)3 March 1983
Apr5.6 mm (0.22 in)1 April 1982
May10.9 mm (0.4 in)29 May 1952
Jun8.9 mm (0.35 in)18 June 1951
Jul20.3 mm (0.8 in)15 July 1983
Aug16.0 mm (0.6 in)6 August 1980
Sep26.9 mm (1.1 in)14 September 1980
Oct20.1 mm (0.8 in)14 October 1953
Nov5.1 mm (0.20 in)24 November 1979
Dec5.1 mm (0.20 in)6 December 1958

Period of Record Coverage

1957 to 1983
Days with data per year at Alert Ua 10 years of record at Alert Ua, 1957 to 1983. 8 years have data for under 90 percent of days and are left out of rankings: 1957, 1959, 1977, 1978, 1979, 1980, 1982, 1983. 1957: 180 of 365 days1958: 348 of 365 days1959: 87 of 365 days1977: 152 of 365 days1978: 316 of 365 days1979: 285 of 365 days1980: 319 of 366 days1981: 330 of 365 days1982: 269 of 365 days1983: 284 of 365 days1980
10 years of record at Alert Ua, 1957 to 1983. 8 years have data for under 90 percent of days and are left out of rankings: 1957, 1959, 1977, 1978, 1979, 1980, 1982, 1983.
Days with data per year at Alert Ua
YearDays with dataShare of yearComplete
195718049%No
195834895%Yes
19598724%No
197715242%No
197831687%No
197928578%No
198031987%No
198133090%Yes
198226974%No
198328478%No

Latest Records

0

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

Extremes by Year

1950 to 1983
Yearly extremes at Alert Ua: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)16.7 C (62.1 F)195714.5 C (58.0 F)10
Coldest night (TNn)-50.0 C (-58.0 F)1979-45.0 C (-49.0 F)10
Wettest day (Rx1day)26.9 mm (1.1 in)198010.4 mm (0.4 in)14
Wettest five days (Rx5day)41.4 mm (1.6 in)198017.9 mm (0.7 in)14
Longest dry spell (CDD)19 days19837 days14

Hottest day (TXx)

Hottest day (TXx) at Alert Ua by year The hottest day of the year at Alert Ua, 1950 to 1983. The record is 16.7 C (62.1 F) in 1957, marked on the chart; the median year is 14.5 C (58.0 F). -10010201950196019701980Record: 16.7 C (62.1 F) in 1957
The hottest day of the year at Alert Ua, 1950 to 1983. The record is 16.7 C (62.1 F) in 1957, marked on the chart; the median year is 14.5 C (58.0 F).
Hottest day (TXx) at Alert Ua by year
YearHottest day (TXx)
1950n/a
1951n/a
1952n/a
1953n/a
195716.7 C (62.1 F)
195816.1 C (61.0 F)
1959-7.2 C (19.0 F)
197710.0 C (50.0 F)
197815.0 C (59.0 F)
197915.0 C (59.0 F)
198013.0 C (55.4 F)
198116.0 C (60.8 F)
198213.9 C (57.0 F)
198312.3 C (54.1 F)

Coldest night (TNn)

Coldest night (TNn) at Alert Ua by year The coldest night of the year at Alert Ua, 1950 to 1983. The record is -50.0 C (-58.0 F) in 1979, marked on the chart; the median year is -45.0 C (-49.0 F). -50-48-46-44-421950196019701980Record: -50.0 C (-58.0 F) in 1979
The coldest night of the year at Alert Ua, 1950 to 1983. The record is -50.0 C (-58.0 F) in 1979, marked on the chart; the median year is -45.0 C (-49.0 F).
Coldest night (TNn) at Alert Ua by year
YearColdest night (TNn)
1950n/a
1951n/a
1952n/a
1953n/a
1957-45.0 C (-49.0 F)
1958-46.1 C (-51.0 F)
1959-43.3 C (-45.9 F)
1977-45.0 C (-49.0 F)
1978-46.0 C (-50.8 F)
1979-50.0 C (-58.0 F)
1980-45.0 C (-49.0 F)
1981-46.0 C (-50.8 F)
1982-42.2 C (-44.0 F)
1983-44.2 C (-47.6 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Alert Ua by year The wettest day of the year at Alert Ua, 1950 to 1983. The record is 26.9 mm (1.1 in) in 1980, marked on the chart; the median year is 10.4 mm (0.4 in). 01020301950196019701980Record: 26.9 mm (1.1 in) in 1980
The wettest day of the year at Alert Ua, 1950 to 1983. The record is 26.9 mm (1.1 in) in 1980, marked on the chart; the median year is 10.4 mm (0.4 in).
Wettest day (Rx1day) at Alert Ua by year
YearWettest day (Rx1day)
19507.9 mm (0.31 in)
195114.0 mm (0.6 in)
195213.0 mm (0.5 in)
195320.1 mm (0.8 in)
19577.9 mm (0.31 in)
195811.9 mm (0.5 in)
19593.0 mm (0.12 in)
19778.9 mm (0.35 in)
19787.9 mm (0.31 in)
19796.1 mm (0.24 in)
198026.9 mm (1.1 in)
198114.0 mm (0.6 in)
19827.9 mm (0.31 in)
198320.3 mm (0.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Alert Ua by year The wettest five days of the year at Alert Ua, 1950 to 1983. The record is 41.4 mm (1.6 in) in 1980, marked on the chart; the median year is 17.9 mm (0.7 in). 010203040501950196019701980Record: 41.4 mm (1.6 in) in 1980
The wettest five days of the year at Alert Ua, 1950 to 1983. The record is 41.4 mm (1.6 in) in 1980, marked on the chart; the median year is 17.9 mm (0.7 in).
Wettest five days (Rx5day) at Alert Ua by year
YearWettest five days (Rx5day)
195015.9 mm (0.6 in)
195128.0 mm (1.1 in)
195217.6 mm (0.7 in)
195336.4 mm (1.4 in)
195718.1 mm (0.7 in)
195813.7 mm (0.5 in)
19596.5 mm (0.26 in)
197717.5 mm (0.7 in)
197823.6 mm (0.9 in)
197921.3 mm (0.8 in)
198041.4 mm (1.6 in)
198112.5 mm (0.5 in)
198214.3 mm (0.6 in)
198341.4 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Alert Ua by year The longest dry spell of the year at Alert Ua, 1950 to 1983. The record is 19 days in 1983, marked on the chart; the median year is 7 days. 051015201950196019701980Record: 19 days in 1983
The longest dry spell of the year at Alert Ua, 1950 to 1983. The record is 19 days in 1983, marked on the chart; the median year is 7 days.
Longest dry spell (CDD) at Alert Ua by year
YearLongest dry spell (CDD)
19504 days
195111 days
195217 days
195314 days
19577 days
19585 days
19594 days
19774 days
19786 days
19794 days
198011 days
19817 days
198214 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.

Download the Data

  • Data for Alert Ua standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Alert Ua 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).