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Powassan Weather Records (CA006116702)

Record envelope, standing records and threshold days for Powassan (CA006116702), Ontario, Canada, with 37 years of record.

Key Facts for Powassan

  • Powassan (CA006116702) is a weather station in Ontario, Canada at 46.12 latitude and -79.25 longitude, 274 m (899 ft) above sea level.
  • The station reports from 1974 to 2010, 37 years of record.
  • 1,464 records set at Powassan still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Ontario, Canada, 46.12 latitude, -79.25 longitude.
  • Elevation: 274 m (899 ft).
  • Period of record: 1974 to 2010, 37 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Powassan, with 2026 drawn through them The band shows the record high and record low for each calendar day at Powassan. 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 Powassan. 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 Powassan, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan9.4 C (48.9 F)-43.5 C (-46.3 F)n/an/a
Feb11.7 C (53.1 F)-42.0 C (-43.6 F)n/an/a
Mar20.6 C (69.1 F)-35.0 C (-31.0 F)n/an/a
Apr27.8 C (82.0 F)-19.0 C (-2.2 F)n/an/a
May32.2 C (90.0 F)-5.6 C (21.9 F)n/an/a
Jun32.0 C (89.6 F)-1.1 C (30.0 F)n/an/a
Jul35.0 C (95.0 F)1.5 C (34.7 F)n/an/a
Aug33.9 C (93.0 F)0.0 C (32.0 F)n/an/a
Sep30.0 C (86.0 F)-5.0 C (23.0 F)n/an/a
Oct25.5 C (77.9 F)-9.4 C (15.1 F)n/an/a
Nov18.9 C (66.0 F)-26.5 C (-15.7 F)n/an/a
Dec17.5 C (63.5 F)-40.5 C (-40.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Powassan by the year they were set 1,464 records at Powassan still stand. 1976 holds the most, with 185. 0501001502001974: 141975: 1581976: 1851977: 1411978: 1441979: 1811980: 1401981: 1601982: 1611983: 1801974197519761977197819791980198119821983
1,464 records at Powassan still stand. 1976 holds the most, with 185.
Standing records at Powassan by the year they were set
Year setStanding records
197414
1975158
1976185
1977141
1978144
1979181
1980140
1981160
1982161
1983180

Wettest Day of Each Month

Sep: 61.2 mm (2.4 in)
Record daily precipitation for each month at Powassan The wettest day on record for each calendar month at Powassan. The most was 61.2 mm (2.4 in) on 20 September 1983. 020406080 Jan: 22.0 mm (0.9 in), 24 January 1979 Jan Feb: 20.0 mm (0.8 in), 10 February 1981 Feb Mar: 33.8 mm (1.3 in), 21 March 1980 Mar Apr: 28.4 mm (1.1 in), 8 April 1981 Apr May: 41.2 mm (1.6 in), 7 May 1983 May Jun: 53.6 mm (2.1 in), 19 June 1980 Jun Jul: 41.9 mm (1.6 in), 1 July 1976 Jul Aug: 57.6 mm (2.3 in), 17 August 1983 Aug Sep: 61.2 mm (2.4 in), 20 September 1983 Sep Oct: 39.4 mm (1.6 in), 1 October 1980 Oct Nov: 27.7 mm (1.1 in), 10 November 1977 Nov Dec: 26.0 mm (1.0 in), 5 December 1982 Dec
The wettest day on record for each calendar month at Powassan. The most was 61.2 mm (2.4 in) on 20 September 1983.
Record daily precipitation for each month at Powassan
MonthRecord daily precipitation (mm)Date
Jan22.0 mm (0.9 in)24 January 1979
Feb20.0 mm (0.8 in)10 February 1981
Mar33.8 mm (1.3 in)21 March 1980
Apr28.4 mm (1.1 in)8 April 1981
May41.2 mm (1.6 in)7 May 1983
Jun53.6 mm (2.1 in)19 June 1980
Jul41.9 mm (1.6 in)1 July 1976
Aug57.6 mm (2.3 in)17 August 1983
Sep61.2 mm (2.4 in)20 September 1983
Oct39.4 mm (1.6 in)1 October 1980
Nov27.7 mm (1.1 in)10 November 1977
Dec26.0 mm (1.0 in)5 December 1982

Period of Record Coverage

1974 to 1983
Days with data per year at Powassan 10 years of record at Powassan, 1974 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1974. 1974: 48 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days19751980
10 years of record at Powassan, 1974 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1974.
Days with data per year at Powassan
YearDays with dataShare of yearComplete
19744813%No
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes

Latest Records

0

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

Extremes by Year

1974 to 1983
Yearly extremes at Powassan: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.0 C (95.0 F)197531.5 C (88.7 F)10
Coldest night (TNn)-43.5 C (-46.3 F)1981-39.2 C (-38.6 F)10
Wettest day (Rx1day)61.2 mm (2.4 in)198344.3 mm (1.7 in)10
Wettest five days (Rx5day)101.0 mm (4.0 in)197769.9 mm (2.8 in)10
Longest dry spell (CDD)27 days197813 days10

Hottest day (TXx)

Hottest day (TXx) at Powassan by year The hottest day of the year at Powassan, 1974 to 1983. The record is 35.0 C (95.0 F) in 1975, marked on the chart; the median year is 31.5 C (88.7 F). 01020304019751980Record: 35.0 C (95.0 F) in 1975
The hottest day of the year at Powassan, 1974 to 1983. The record is 35.0 C (95.0 F) in 1975, marked on the chart; the median year is 31.5 C (88.7 F).
Hottest day (TXx) at Powassan by year
YearHottest day (TXx)
19746.1 C (43.0 F)
197535.0 C (95.0 F)
197630.6 C (87.1 F)
197734.4 C (93.9 F)
197831.5 C (88.7 F)
197932.0 C (89.6 F)
198031.0 C (87.8 F)
198131.5 C (88.7 F)
198231.0 C (87.8 F)
198333.0 C (91.4 F)

Coldest night (TNn)

Coldest night (TNn) at Powassan by year The coldest night of the year at Powassan, 1974 to 1983. The record is -43.5 C (-46.3 F) in 1981, marked on the chart; the median year is -39.2 C (-38.6 F). -45-40-35-30-25-2019751980Record: -43.5 C (-46.3 F) in 1981
The coldest night of the year at Powassan, 1974 to 1983. The record is -43.5 C (-46.3 F) in 1981, marked on the chart; the median year is -39.2 C (-38.6 F).
Coldest night (TNn) at Powassan by year
YearColdest night (TNn)
1974-23.9 C (-11.0 F)
1975-37.8 C (-36.0 F)
1976-41.1 C (-42.0 F)
1977-37.2 C (-35.0 F)
1978-38.9 C (-38.0 F)
1979-42.0 C (-43.6 F)
1980-40.5 C (-40.9 F)
1981-43.5 C (-46.3 F)
1982-39.5 C (-39.1 F)
1983-38.0 C (-36.4 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Powassan by year The wettest day of the year at Powassan, 1974 to 1983. The record is 61.2 mm (2.4 in) in 1983, marked on the chart; the median year is 44.3 mm (1.7 in). 20304050607019751980Record: 61.2 mm (2.4 in) in 1983
The wettest day of the year at Powassan, 1974 to 1983. The record is 61.2 mm (2.4 in) in 1983, marked on the chart; the median year is 44.3 mm (1.7 in).
Wettest day (Rx1day) at Powassan by year
YearWettest day (Rx1day)
197429.7 mm (1.2 in)
197532.8 mm (1.3 in)
197641.9 mm (1.6 in)
197751.3 mm (2.0 in)
197846.6 mm (1.8 in)
197932.8 mm (1.3 in)
198053.6 mm (2.1 in)
198149.4 mm (1.9 in)
198232.6 mm (1.3 in)
198361.2 mm (2.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Powassan by year The wettest five days of the year at Powassan, 1974 to 1983. The record is 101.0 mm (4.0 in) in 1977, marked on the chart; the median year is 69.9 mm (2.8 in). 40608010012019751980Record: 101.0 mm (4.0 in) in 1977
The wettest five days of the year at Powassan, 1974 to 1983. The record is 101.0 mm (4.0 in) in 1977, marked on the chart; the median year is 69.9 mm (2.8 in).
Wettest five days (Rx5day) at Powassan by year
YearWettest five days (Rx5day)
197465.3 mm (2.6 in)
197558.1 mm (2.3 in)
197674.1 mm (2.9 in)
1977101.0 mm (4.0 in)
197862.4 mm (2.5 in)
197961.2 mm (2.4 in)
198072.8 mm (2.9 in)
198167.0 mm (2.6 in)
198279.4 mm (3.1 in)
198394.6 mm (3.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Powassan by year The longest dry spell of the year at Powassan, 1974 to 1983. The record is 27 days in 1978, marked on the chart; the median year is 13 days. 101520253019751980Record: 27 days in 1978
The longest dry spell of the year at Powassan, 1974 to 1983. The record is 27 days in 1978, marked on the chart; the median year is 13 days.
Longest dry spell (CDD) at Powassan by year
YearLongest dry spell (CDD)
197411 days
197514 days
197610 days
197719 days
197827 days
197913 days
198010 days
198112 days
198211 days
198314 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 Powassan standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Powassan 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).