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Built 2026-10-19 (19 October 2026)

100 Mile House Weather Records (CA001165791)

Record envelope, standing records and threshold days for 100 Mile House (CA001165791), British Columbia, Canada, with 30 years of record.

Key Facts for 100 Mile House

  • 100 Mile House (CA001165791) is a weather station in British Columbia, Canada at 51.65 latitude and -121.30 longitude, 1,059 m (3,474 ft) above sea level.
  • The station reports from 1970 to 1999, 30 years of record.
  • 1,464 records set at 100 Mile House 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, 51.65 latitude, -121.30 longitude.
  • Elevation: 1,059 m (3,474 ft).
  • Period of record: 1970 to 1999, 30 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at 100 Mile House, with 2026 drawn through them The band shows the record high and record low for each calendar day at 100 Mile House. 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 100 Mile House. 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 100 Mile House, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.0 C (53.6 F)-42.8 C (-45.0 F)n/an/a
Feb12.8 C (55.0 F)-38.0 C (-36.4 F)n/an/a
Mar17.0 C (62.6 F)-37.8 C (-36.0 F)n/an/a
Apr30.0 C (86.0 F)-15.0 C (5.0 F)n/an/a
May34.5 C (94.1 F)-9.0 C (15.8 F)n/an/a
Jun32.2 C (90.0 F)-4.0 C (24.8 F)n/an/a
Jul35.0 C (95.0 F)-1.1 C (30.0 F)n/an/a
Aug36.0 C (96.8 F)-2.2 C (28.0 F)n/an/a
Sep32.0 C (89.6 F)-10.0 C (14.0 F)n/an/a
Oct25.6 C (78.1 F)-16.1 C (3.0 F)n/an/a
Nov18.3 C (64.9 F)-30.0 C (-22.0 F)n/an/a
Dec12.5 C (54.5 F)-42.0 C (-43.6 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at 100 Mile House by the year they were set 1,464 records at 100 Mile House still stand. 1972 holds the most, with 136. 0501001501970: 911971: 1111972: 1361973: 1081974: 681975: 1241976: 721977: 851978: 1091979: 1201980: 1221981: 1021982: 1051983: 1111970197219741976197819801982
1,464 records at 100 Mile House still stand. 1972 holds the most, with 136.
Standing records at 100 Mile House by the year they were set
Year setStanding records
197091
1971111
1972136
1973108
197468
1975124
197672
197785
1978109
1979120
1980122
1981102
1982105
1983111

Wettest Day of Each Month

Jul: 33.1 mm (1.3 in)
Record daily precipitation for each month at 100 Mile House The wettest day on record for each calendar month at 100 Mile House. The most was 33.1 mm (1.3 in) on 3 July 1982. 010203040 Jan: 24.4 mm (1.0 in), 21 January 1975 Jan Feb: 15.7 mm (0.6 in), 9 February 1975 Feb Mar: 15.6 mm (0.6 in), 8 March 1980 Mar Apr: 10.0 mm (0.4 in), 16 April 1978 Apr May: 24.9 mm (1.0 in), 23 May 1977 May Jun: 31.8 mm (1.3 in), 11 June 1972 Jun Jul: 33.1 mm (1.3 in), 3 July 1982 Jul Aug: 24.4 mm (1.0 in), 1 August 1982 Aug Sep: 21.0 mm (0.8 in), 1 September 1980 Sep Oct: 16.2 mm (0.6 in), 28 October 1978 Oct Nov: 22.4 mm (0.9 in), 30 November 1972 Nov Dec: 22.9 mm (0.9 in), 31 December 1971 Dec
The wettest day on record for each calendar month at 100 Mile House. The most was 33.1 mm (1.3 in) on 3 July 1982.
Record daily precipitation for each month at 100 Mile House
MonthRecord daily precipitation (mm)Date
Jan24.4 mm (1.0 in)21 January 1975
Feb15.7 mm (0.6 in)9 February 1975
Mar15.6 mm (0.6 in)8 March 1980
Apr10.0 mm (0.4 in)16 April 1978
May24.9 mm (1.0 in)23 May 1977
Jun31.8 mm (1.3 in)11 June 1972
Jul33.1 mm (1.3 in)3 July 1982
Aug24.4 mm (1.0 in)1 August 1982
Sep21.0 mm (0.8 in)1 September 1980
Oct16.2 mm (0.6 in)28 October 1978
Nov22.4 mm (0.9 in)30 November 1972
Dec22.9 mm (0.9 in)31 December 1971

Period of Record Coverage

1970 to 1983
Days with data per year at 100 Mile House 14 years of record at 100 Mile House, 1970 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1970. 1970: 239 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 364 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 364 of 365 days1978: 365 of 365 days1979: 364 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days197019751980
14 years of record at 100 Mile House, 1970 to 1983. 1 years have data for under 90 percent of days and are left out of rankings: 1970.
Days with data per year at 100 Mile House
YearDays with dataShare of yearComplete
197023965%No
1971365100%Yes
1972366100%Yes
1973364100%Yes
1974365100%Yes
1975364100%Yes
1976366100%Yes
1977364100%Yes
1978365100%Yes
1979364100%Yes
1980365100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes

Latest Records

0

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

Climate Trend

13 complete years, 1971 to 1983
Annual mean temperature at 100 Mile House as warming stripes, 1971 to 1983 One stripe for each of 13 complete years at 100 Mile House, 1971 to 1983. Blue stripes are years cooler than the station's own mean of 3.8 C (38.8 F); red stripes are warmer. The coolest year was 1975, at 2.9 C (37.2 F), and the warmest was 1981, at 5.2 C (41.4 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1971: 3.8 C, 0.0 C from the station mean1972: 3.3 C, -0.5 C from the station mean1973: 4.3 C, +0.5 C from the station mean1974: 4.6 C, +0.8 C from the station mean1975: 2.9 C, -0.9 C from the station mean1976: 4.3 C, +0.5 C from the station mean1977: 3.5 C, -0.3 C from the station mean1978: 2.9 C, -0.9 C from the station mean1979: 3.2 C, -0.6 C from the station mean1980: 3.9 C, +0.1 C from the station mean1981: 5.2 C, +1.4 C from the station mean1982: 3.0 C, -0.8 C from the station mean1983: 4.5 C, +0.7 C from the station mean1971197219741976197819801982
One stripe for each of 13 complete years at 100 Mile House, 1971 to 1983. Blue stripes are years cooler than the station's own mean of 3.8 C (38.8 F); red stripes are warmer. The coolest year was 1975, at 2.9 C (37.2 F), and the warmest was 1981, at 5.2 C (41.4 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at 100 Mile House as warming stripes, 1971 to 1983
YearAnnual mean temperatureDifference from the station mean
19713.8 C+0.01 C
19723.3 C-0.53 C
19734.3 C+0.45 C
19744.6 C+0.83 C
19752.9 C-0.93 C
19764.3 C+0.50 C
19773.5 C-0.30 C
19782.9 C-0.88 C
19793.2 C-0.59 C
19803.9 C+0.06 C
19815.2 C+1.44 C
19823.0 C-0.79 C
19834.5 C+0.67 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

1970 to 1983
Yearly extremes at 100 Mile House: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.0 C (96.8 F)197833.4 C (92.1 F)14
Coldest night (TNn)-42.8 C (-45.0 F)1972-37.2 C (-35.0 F)14
Wettest day (Rx1day)33.1 mm (1.3 in)198221.4 mm (0.8 in)14
Wettest five days (Rx5day)49.1 mm (1.9 in)197840.4 mm (1.6 in)14
Longest dry spell (CDD)37 days197025 days14

Hottest day (TXx)

Hottest day (TXx) at 100 Mile House by year The hottest day of the year at 100 Mile House, 1970 to 1983. The record is 36.0 C (96.8 F) in 1978, marked on the chart; the median year is 33.4 C (92.1 F). 2830323436197019751980Record: 36.0 C (96.8 F) in 1978
The hottest day of the year at 100 Mile House, 1970 to 1983. The record is 36.0 C (96.8 F) in 1978, marked on the chart; the median year is 33.4 C (92.1 F).
Hottest day (TXx) at 100 Mile House by year
YearHottest day (TXx)
197033.9 C (93.0 F)
197135.0 C (95.0 F)
197231.1 C (88.0 F)
197333.3 C (91.9 F)
197433.3 C (91.9 F)
197534.4 C (93.9 F)
197629.4 C (84.9 F)
197731.7 C (89.1 F)
197836.0 C (96.8 F)
197935.0 C (95.0 F)
198029.0 C (84.2 F)
198133.5 C (92.3 F)
198231.5 C (88.7 F)
198334.5 C (94.1 F)

Coldest night (TNn)

Coldest night (TNn) at 100 Mile House by year The coldest night of the year at 100 Mile House, 1970 to 1983. The record is -42.8 C (-45.0 F) in 1972, marked on the chart; the median year is -37.2 C (-35.0 F). -45-40-35-30-25197019751980Record: -42.8 C (-45.0 F) in 1972
The coldest night of the year at 100 Mile House, 1970 to 1983. The record is -42.8 C (-45.0 F) in 1972, marked on the chart; the median year is -37.2 C (-35.0 F).
Coldest night (TNn) at 100 Mile House by year
YearColdest night (TNn)
1970-28.3 C (-18.9 F)
1971-36.7 C (-34.1 F)
1972-42.8 C (-45.0 F)
1973-33.9 C (-29.0 F)
1974-36.7 C (-34.1 F)
1975-41.1 C (-42.0 F)
1976-37.8 C (-36.0 F)
1977-38.0 C (-36.4 F)
1978-42.0 C (-43.6 F)
1979-38.0 C (-36.4 F)
1980-36.0 C (-32.8 F)
1981-32.0 C (-25.6 F)
1982-40.5 C (-40.9 F)
1983-36.0 C (-32.8 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at 100 Mile House by year The wettest day of the year at 100 Mile House, 1970 to 1983. The record is 33.1 mm (1.3 in) in 1982, marked on the chart; the median year is 21.4 mm (0.8 in). 10203040197019751980Record: 33.1 mm (1.3 in) in 1982
The wettest day of the year at 100 Mile House, 1970 to 1983. The record is 33.1 mm (1.3 in) in 1982, marked on the chart; the median year is 21.4 mm (0.8 in).
Wettest day (Rx1day) at 100 Mile House by year
YearWettest day (Rx1day)
197011.4 mm (0.4 in)
197122.9 mm (0.9 in)
197231.8 mm (1.3 in)
197320.8 mm (0.8 in)
197420.8 mm (0.8 in)
197524.4 mm (1.0 in)
197616.8 mm (0.7 in)
197724.9 mm (1.0 in)
197822.3 mm (0.9 in)
197915.0 mm (0.6 in)
198021.0 mm (0.8 in)
198121.8 mm (0.9 in)
198233.1 mm (1.3 in)
198318.4 mm (0.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at 100 Mile House by year The wettest five days of the year at 100 Mile House, 1970 to 1983. The record is 49.1 mm (1.9 in) in 1978, marked on the chart; the median year is 40.4 mm (1.6 in). 1020304050197019751980Record: 49.1 mm (1.9 in) in 1978
The wettest five days of the year at 100 Mile House, 1970 to 1983. The record is 49.1 mm (1.9 in) in 1978, marked on the chart; the median year is 40.4 mm (1.6 in).
Wettest five days (Rx5day) at 100 Mile House by year
YearWettest five days (Rx5day)
197019.8 mm (0.8 in)
197137.9 mm (1.5 in)
197248.9 mm (1.9 in)
197330.3 mm (1.2 in)
197441.2 mm (1.6 in)
197538.9 mm (1.5 in)
197643.0 mm (1.7 in)
197739.6 mm (1.6 in)
197849.1 mm (1.9 in)
197919.4 mm (0.8 in)
198047.0 mm (1.9 in)
198141.7 mm (1.6 in)
198248.1 mm (1.9 in)
198327.2 mm (1.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at 100 Mile House by year The longest dry spell of the year at 100 Mile House, 1970 to 1983. The record is 37 days in 1970, marked on the chart; the median year is 25 days. 152025303540197019751980Record: 37 days in 1970
The longest dry spell of the year at 100 Mile House, 1970 to 1983. The record is 37 days in 1970, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at 100 Mile House by year
YearLongest dry spell (CDD)
197037 days
197134 days
197228 days
197322 days
197425 days
197518 days
197619 days
197722 days
197829 days
197922 days
198020 days
198125 days
198224 days
198328 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 100 Mile House standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for 100 Mile House 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-17).