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Built 2026-10-18 (18 October 2026)

Coquitlam Weather Records (CA001101888)

Record envelope, standing records and threshold days for Coquitlam (CA001101888), British Columbia, Canada, with 33 years of record.

Key Facts for Coquitlam

  • Coquitlam (CA001101888) is a weather station in British Columbia, Canada at 49.27 latitude and -122.85 longitude, 8 m (26 ft) above sea level.
  • The station reports from 1901 to 1933, 33 years of record.
  • 0 records set at Coquitlam still stand.
  • Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
  • Coquitlam set a daily record precipitation of 29.2 mm (1.1 in) on 22 October 1933.

About the Station

  • Location: British Columbia, Canada, 49.27 latitude, -122.85 longitude.
  • Elevation: 8 m (26 ft).
  • Period of record: 1901 to 1933, 33 years.
  • Eligible elements: prcp, snow.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Coquitlam, with 2026 drawn through them The band shows the record high and record low for each calendar day at Coquitlam. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Coquitlam. 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 Coquitlam, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Coquitlam by the year they were set 0 records at Coquitlam still stand. 00000000000
0 records at Coquitlam still stand.
Standing records at Coquitlam by the year they were set
Year setStanding records

Wettest Day of Each Month

Feb: 108.2 mm (4.3 in)
Record daily precipitation for each month at Coquitlam The wettest day on record for each calendar month at Coquitlam. The most was 108.2 mm (4.3 in) on 11 February 1924. 050100150 Jan: 100.3 mm (3.9 in), 21 January 1916 Jan Feb: 108.2 mm (4.3 in), 11 February 1924 Feb Mar: 84.1 mm (3.3 in), 9 March 1916 Mar Apr: 77.5 mm (3.1 in), 2 April 1915 Apr May: 56.4 mm (2.2 in), 16 May 1906 May Jun: 51.3 mm (2.0 in), 20 June 1932 Jun Jul: 46.7 mm (1.8 in), 10 July 1932 Jul Aug: 81.3 mm (3.2 in), 15 August 1912 Aug Sep: 87.6 mm (3.4 in), 7 September 1906 Sep Oct: 103.4 mm (4.1 in), 28 October 1921 Oct Nov: 106.7 mm (4.2 in), 15 November 1919 Nov Dec: 90.4 mm (3.6 in), 21 December 1910 Dec
The wettest day on record for each calendar month at Coquitlam. The most was 108.2 mm (4.3 in) on 11 February 1924.
Record daily precipitation for each month at Coquitlam
MonthRecord daily precipitation (mm)Date
Jan100.3 mm (3.9 in)21 January 1916
Feb108.2 mm (4.3 in)11 February 1924
Mar84.1 mm (3.3 in)9 March 1916
Apr77.5 mm (3.1 in)2 April 1915
May56.4 mm (2.2 in)16 May 1906
Jun51.3 mm (2.0 in)20 June 1932
Jul46.7 mm (1.8 in)10 July 1932
Aug81.3 mm (3.2 in)15 August 1912
Sep87.6 mm (3.4 in)7 September 1906
Oct103.4 mm (4.1 in)28 October 1921
Nov106.7 mm (4.2 in)15 November 1919
Dec90.4 mm (3.6 in)21 December 1910

Latest Records

20
Latest records at Coquitlam
DateStationRecordValueBeat old record byOld record stoodSignificance
22 October 1933Coquitlam, CAdaily rain29.2 mm (1.1 in)3.3 mm (0.13 in)15 years9 of 100 (Routine)
16 October 1933Coquitlam, CAdaily rain47.0 mm (1.9 in)7.6 mm (0.30 in)19 years13 of 100 (Routine)
28 July 1933Coquitlam, CAdaily rain10.7 mm (0.4 in)6.4 mm (0.25 in)16 years14 of 100 (Routine)
1 July 1933Coquitlam, CAdaily rain17.0 mm (0.7 in)6.3 mm (0.25 in)31 years19 of 100 (Routine)
16 June 1933Coquitlam, CAdaily rain3.8 mm (0.15 in)1.0 mm (0.04 in)31 years13 of 100 (Routine)
28 March 1933Coquitlam, CAdaily rain37.6 mm (1.5 in)3.8 mm (0.15 in)30 years14 of 100 (Routine)
6 March 1933Coquitlam, CAdaily rain45.5 mm (1.8 in)28.5 mm (1.1 in)16 years29 of 100 (Routine)
24 February 1933Coquitlam, CAdaily rain50.0 mm (2.0 in)16.5 mm (0.6 in)15 years17 of 100 (Routine)
25 January 1933Coquitlam, CAdaily snowfall23.6 cm (9.3 in)16.0 cm (6.3 in)17 years31 of 100 (Routine)
9 January 1933Coquitlam, CAdaily rain70.6 mm (2.8 in)32.2 mm (1.3 in)29 years31 of 100 (Routine)
3 January 1933Coquitlam, CAdaily snowfall2.0 cm (0.8 in)2.0 cm (0.8 in)31 years14 of 100 (Routine)
12 November 1932Coquitlam, CAdaily rain70.1 mm (2.8 in)6.3 mm (0.25 in)1 year6 of 100 (Routine)
19 September 1932Coquitlam, CAdaily rain47.0 mm (1.9 in)23.4 mm (0.9 in)23 years23 of 100 (Routine)
10 July 1932Coquitlam, CAmonthly rain46.7 mm (1.8 in)13.7 mm (0.5 in)15 years34 of 100 (Routine)
3 July 1932Coquitlam, CAdaily rain18.5 mm (0.7 in)5.0 mm (0.20 in)24 years16 of 100 (Routine)
20 June 1932Coquitlam, CAmonthly rain51.3 mm (2.0 in)3.0 mm (0.12 in)26 years24 of 100 (Routine)
19 May 1932Coquitlam, CAdaily rain14.7 mm (0.6 in)5.3 mm (0.21 in)2 years8 of 100 (Routine)
19 April 1932Coquitlam, CAdaily rain39.6 mm (1.6 in)5.8 mm (0.23 in)15 years12 of 100 (Routine)
16 April 1932Coquitlam, CAdaily rain20.1 mm (0.8 in)4.4 mm (0.17 in)16 years11 of 100 (Routine)
30 March 1932Coquitlam, CAdaily rain35.3 mm (1.4 in)2.3 mm (0.09 in)23 years10 of 100 (Routine)

Extremes by Year

1901 to 1933
Yearly extremes at Coquitlam: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)108.2 mm (4.3 in)192481.3 mm (3.2 in)33
Wettest five days (Rx5day)227.2 mm (8.9 in)1916155.5 mm (6.1 in)33
Longest dry spell (CDD)49 days193028 days33

Wettest day (Rx1day)

Wettest day (Rx1day) at Coquitlam by year The wettest day of the year at Coquitlam, 1901 to 1933. The record is 108.2 mm (4.3 in) in 1924, marked on the chart; the median year is 81.3 mm (3.2 in). 406080100120191019201930Record: 108.2 mm (4.3 in) in 1924
The wettest day of the year at Coquitlam, 1901 to 1933. The record is 108.2 mm (4.3 in) in 1924, marked on the chart; the median year is 81.3 mm (3.2 in).
Wettest day (Rx1day) at Coquitlam by year
YearWettest day (Rx1day)
190156.1 mm (2.2 in)
190287.6 mm (3.4 in)
190373.7 mm (2.9 in)
190486.4 mm (3.4 in)
190567.6 mm (2.7 in)
190695.8 mm (3.8 in)
190791.7 mm (3.6 in)
190871.9 mm (2.8 in)
1909104.9 mm (4.1 in)
191090.4 mm (3.6 in)
1911105.7 mm (4.2 in)
191281.3 mm (3.2 in)
1913105.2 mm (4.1 in)
191456.6 mm (2.2 in)
191577.5 mm (3.1 in)
1916100.3 mm (3.9 in)
191798.8 mm (3.9 in)
191895.0 mm (3.7 in)
1919106.7 mm (4.2 in)
192082.3 mm (3.2 in)
1921103.4 mm (4.1 in)
192254.9 mm (2.2 in)
192380.0 mm (3.1 in)
1924108.2 mm (4.3 in)
192574.9 mm (2.9 in)
192657.9 mm (2.3 in)
192756.1 mm (2.2 in)
192854.4 mm (2.1 in)
192955.4 mm (2.2 in)
193053.6 mm (2.1 in)
193165.0 mm (2.6 in)
1932101.3 mm (4.0 in)
193370.6 mm (2.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Coquitlam by year The wettest five days of the year at Coquitlam, 1901 to 1933. The record is 227.2 mm (8.9 in) in 1916, marked on the chart; the median year is 155.5 mm (6.1 in). 100150200250191019201930Record: 227.2 mm (8.9 in) in 1916
The wettest five days of the year at Coquitlam, 1901 to 1933. The record is 227.2 mm (8.9 in) in 1916, marked on the chart; the median year is 155.5 mm (6.1 in).
Wettest five days (Rx5day) at Coquitlam by year
YearWettest five days (Rx5day)
1901102.9 mm (4.1 in)
1902119.4 mm (4.7 in)
1903157.7 mm (6.2 in)
1904112.3 mm (4.4 in)
1905138.2 mm (5.4 in)
1906160.3 mm (6.3 in)
1907171.5 mm (6.8 in)
1908140.3 mm (5.5 in)
1909216.4 mm (8.5 in)
1910162.3 mm (6.4 in)
1911137.4 mm (5.4 in)
1912104.4 mm (4.1 in)
1913155.5 mm (6.1 in)
1914141.4 mm (5.6 in)
1915132.1 mm (5.2 in)
1916227.2 mm (8.9 in)
1917162.1 mm (6.4 in)
1918223.3 mm (8.8 in)
1919202.1 mm (8.0 in)
1920185.4 mm (7.3 in)
1921194.8 mm (7.7 in)
1922151.0 mm (5.9 in)
1923172.2 mm (6.8 in)
1924188.2 mm (7.4 in)
1925142.2 mm (5.6 in)
1926103.4 mm (4.1 in)
1927122.9 mm (4.8 in)
1928171.8 mm (6.8 in)
1929146.6 mm (5.8 in)
1930148.3 mm (5.8 in)
1931198.0 mm (7.8 in)
1932203.4 mm (8.0 in)
1933148.5 mm (5.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Coquitlam by year The longest dry spell of the year at Coquitlam, 1901 to 1933. The record is 49 days in 1930, marked on the chart; the median year is 28 days. 1020304050191019201930Record: 49 days in 1930
The longest dry spell of the year at Coquitlam, 1901 to 1933. The record is 49 days in 1930, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Coquitlam by year
YearLongest dry spell (CDD)
190135 days
190215 days
190315 days
190431 days
190520 days
190633 days
190726 days
190827 days
190922 days
191036 days
191130 days
191225 days
191329 days
191430 days
191534 days
191629 days
191721 days
191830 days
191930 days
192031 days
192115 days
192247 days
192332 days
192421 days
192521 days
192618 days
192719 days
192837 days
192928 days
193049 days
193128 days
193216 days
193313 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.

Rainfall Return Levels

30 years, 1902 to 1932

A day with at least 84.5 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 117.9 mm (4.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Coquitlam: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years84.5 mm (3.3 in)
5 years99.9 mm (3.9 in)
10 years106.7 mm (4.2 in)
25 years112.6 mm (4.4 in)
50 years115.7 mm (4.6 in)Longer than the 30 years of record
100 years117.9 mm (4.6 in)Longer than the 30 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 30 years of values from 1902 to 1932.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 108.2 mm (4.3 in) in 1924; 106.7 mm (4.2 in) in 1919; 105.7 mm (4.2 in) in 1911.

Download the Data

  • Data for Coquitlam standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Coquitlam 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).