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Built 2026-10-14 (14 October 2026)

Williams Lake Weather Records (CA001098939)

Record envelope, standing records and threshold days for Williams Lake (CA001098939), British Columbia, Canada, with 52 years of record.

Key Facts for Williams Lake

  • Williams Lake (CA001098939) is a weather station in British Columbia, Canada at 52.13 latitude and -122.17 longitude, 614 m (2,014 ft) above sea level.
  • The station reports from 1936 to 1987, 52 years of record.
  • 1,464 records set at Williams Lake still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: British Columbia, Canada, 52.13 latitude, -122.17 longitude.
  • Elevation: 614 m (2,014 ft).
  • Period of record: 1936 to 1987, 52 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Williams Lake, with 2026 drawn through them The band shows the record high and record low for each calendar day at Williams Lake. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Williams Lake. 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 Williams Lake, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.9 C (57.0 F)-42.8 C (-45.0 F)n/an/a
Feb14.4 C (57.9 F)-38.3 C (-36.9 F)n/an/a
Mar21.1 C (70.0 F)-28.3 C (-18.9 F)n/an/a
Apr27.2 C (81.0 F)-8.9 C (16.0 F)n/an/a
May36.7 C (98.1 F)-5.0 C (23.0 F)n/an/a
Jun35.6 C (96.1 F)0.0 C (32.0 F)n/an/a
Jul41.1 C (106.0 F)1.7 C (35.1 F)n/an/a
Aug36.1 C (97.0 F)0.6 C (33.1 F)n/an/a
Sep33.3 C (91.9 F)-2.8 C (27.0 F)n/an/a
Oct28.3 C (82.9 F)-11.7 C (10.9 F)n/an/a
Nov16.7 C (62.1 F)-27.8 C (-18.0 F)n/an/a
Dec17.2 C (63.0 F)-31.1 C (-24.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Williams Lake by the year they were set 1,464 records at Williams Lake still stand. 1939 holds the most, with 206. 01002003001939: 2061940: 1941941: 1831942: 1391943: 1701944: 1491945: 1741946: 1521947: 97193919401941194219431944194519461947
1,464 records at Williams Lake still stand. 1939 holds the most, with 206.
Standing records at Williams Lake by the year they were set
Year setStanding records
1939206
1940194
1941183
1942139
1943170
1944149
1945174
1946152
194797

Wettest Day of Each Month

Aug: 50.8 mm (2.0 in)
Record daily precipitation for each month at Williams Lake The wettest day on record for each calendar month at Williams Lake. The most was 50.8 mm (2.0 in) on 25 August 1945. 0204060 Jan: 15.2 mm (0.6 in), 8 January 1939 Jan Feb: 14.0 mm (0.6 in), 20 February 1937 Feb Mar: 10.7 mm (0.4 in), 21 March 1947 Mar Apr: 21.8 mm (0.9 in), 14 April 1941 Apr May: 24.9 mm (1.0 in), 18 May 1939 May Jun: 20.1 mm (0.8 in), 17 June 1937 Jun Jul: 29.0 mm (1.1 in), 12 July 1940 Jul Aug: 50.8 mm (2.0 in), 25 August 1945 Aug Sep: 27.4 mm (1.1 in), 25 September 1941 Sep Oct: 22.9 mm (0.9 in), 4 October 1939 Oct Nov: 17.3 mm (0.7 in), 8 November 1937 Nov Dec: 20.3 mm (0.8 in), 10 December 1945 Dec
The wettest day on record for each calendar month at Williams Lake. The most was 50.8 mm (2.0 in) on 25 August 1945.
Record daily precipitation for each month at Williams Lake
MonthRecord daily precipitation (mm)Date
Jan15.2 mm (0.6 in)8 January 1939
Feb14.0 mm (0.6 in)20 February 1937
Mar10.7 mm (0.4 in)21 March 1947
Apr21.8 mm (0.9 in)14 April 1941
May24.9 mm (1.0 in)18 May 1939
Jun20.1 mm (0.8 in)17 June 1937
Jul29.0 mm (1.1 in)12 July 1940
Aug50.8 mm (2.0 in)25 August 1945
Sep27.4 mm (1.1 in)25 September 1941
Oct22.9 mm (0.9 in)4 October 1939
Nov17.3 mm (0.7 in)8 November 1937
Dec20.3 mm (0.8 in)10 December 1945

Period of Record Coverage

1939 to 1947
Days with data per year at Williams Lake 9 years of record at Williams Lake, 1939 to 1947. 2 years have data for under 90 percent of days and are left out of rankings: 1942, 1947. 1939: 362 of 365 days1940: 360 of 366 days1941: 363 of 365 days1942: 324 of 365 days1943: 358 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 240 of 365 days19401945
9 years of record at Williams Lake, 1939 to 1947. 2 years have data for under 90 percent of days and are left out of rankings: 1942, 1947.
Days with data per year at Williams Lake
YearDays with dataShare of yearComplete
193936299%Yes
194036098%Yes
194136399%Yes
194232489%No
194335898%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
194724066%No

Latest Records

0

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

Extremes by Year

1936 to 1947
Yearly extremes at Williams Lake: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)194136.1 C (97.0 F)9
Coldest night (TNn)-42.8 C (-45.0 F)1943-26.1 C (-15.0 F)9
Wettest day (Rx1day)50.8 mm (2.0 in)194523.7 mm (0.9 in)12
Wettest five days (Rx5day)55.9 mm (2.2 in)194435.7 mm (1.4 in)12
Longest dry spell (CDD)33 days194429 days12

Hottest day (TXx)

Hottest day (TXx) at Williams Lake by year The hottest day of the year at Williams Lake, 1936 to 1947. The record is 41.1 C (106.0 F) in 1941, marked on the chart; the median year is 36.1 C (97.0 F). 3032.53537.54042.519401945Record: 41.1 C (106.0 F) in 1941
The hottest day of the year at Williams Lake, 1936 to 1947. The record is 41.1 C (106.0 F) in 1941, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Williams Lake by year
YearHottest day (TXx)
1936n/a
1937n/a
1938n/a
193936.1 C (97.0 F)
194033.3 C (91.9 F)
194141.1 C (106.0 F)
194237.8 C (100.0 F)
194332.2 C (90.0 F)
194436.1 C (97.0 F)
194535.6 C (96.1 F)
194636.7 C (98.1 F)
194732.8 C (91.0 F)

Coldest night (TNn)

Coldest night (TNn) at Williams Lake by year The coldest night of the year at Williams Lake, 1936 to 1947. The record is -42.8 C (-45.0 F) in 1943, marked on the chart; the median year is -26.1 C (-15.0 F). -50-40-30-2019401945Record: -42.8 C (-45.0 F) in 1943
The coldest night of the year at Williams Lake, 1936 to 1947. The record is -42.8 C (-45.0 F) in 1943, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Williams Lake by year
YearColdest night (TNn)
1936n/a
1937n/a
1938n/a
1939-38.3 C (-36.9 F)
1940-26.1 C (-15.0 F)
1941-26.1 C (-15.0 F)
1942-22.8 C (-9.0 F)
1943-42.8 C (-45.0 F)
1944-24.4 C (-11.9 F)
1945-22.2 C (-8.0 F)
1946-31.1 C (-24.0 F)
1947-41.7 C (-43.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Williams Lake by year The wettest day of the year at Williams Lake, 1936 to 1947. The record is 50.8 mm (2.0 in) in 1945, marked on the chart; the median year is 23.7 mm (0.9 in). 10203040506019401945Record: 50.8 mm (2.0 in) in 1945
The wettest day of the year at Williams Lake, 1936 to 1947. The record is 50.8 mm (2.0 in) in 1945, marked on the chart; the median year is 23.7 mm (0.9 in).
Wettest day (Rx1day) at Williams Lake by year
YearWettest day (Rx1day)
193626.9 mm (1.1 in)
193722.4 mm (0.9 in)
193820.8 mm (0.8 in)
193924.9 mm (1.0 in)
194029.0 mm (1.1 in)
194127.4 mm (1.1 in)
194218.3 mm (0.7 in)
194318.3 mm (0.7 in)
194431.5 mm (1.2 in)
194550.8 mm (2.0 in)
194612.2 mm (0.5 in)
194718.8 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Williams Lake by year The wettest five days of the year at Williams Lake, 1936 to 1947. The record is 55.9 mm (2.2 in) in 1944, marked on the chart; the median year is 35.7 mm (1.4 in). 203040506019401945Record: 55.9 mm (2.2 in) in 1944
The wettest five days of the year at Williams Lake, 1936 to 1947. The record is 55.9 mm (2.2 in) in 1944, marked on the chart; the median year is 35.7 mm (1.4 in).
Wettest five days (Rx5day) at Williams Lake by year
YearWettest five days (Rx5day)
193629.2 mm (1.1 in)
193729.3 mm (1.2 in)
193833.0 mm (1.3 in)
193933.9 mm (1.3 in)
194045.3 mm (1.8 in)
194143.0 mm (1.7 in)
194236.4 mm (1.4 in)
194334.9 mm (1.4 in)
194455.9 mm (2.2 in)
194554.6 mm (2.1 in)
194621.1 mm (0.8 in)
194741.9 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Williams Lake by year The longest dry spell of the year at Williams Lake, 1936 to 1947. The record is 33 days in 1944, marked on the chart; the median year is 29 days. 2025303519401945Record: 33 days in 1944
The longest dry spell of the year at Williams Lake, 1936 to 1947. The record is 33 days in 1944, marked on the chart; the median year is 29 days.
Longest dry spell (CDD) at Williams Lake by year
YearLongest dry spell (CDD)
193620 days
193726 days
193830 days
193927 days
194032 days
194126 days
194225 days
194332 days
194433 days
194533 days
194631 days
194728 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 Williams Lake standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Williams Lake 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).