Waterloo Wellington A Weather Records (CA006149387)
Record envelope, standing records and threshold days for Waterloo Wellington A (CA006149387), Ontario, Canada, with 33 years of record.
Key Facts for Waterloo Wellington A
- Waterloo Wellington A (CA006149387) is a weather station in Ontario, Canada at 43.45 latitude and -80.38 longitude, 317 m (1,040 ft) above sea level.
- The station reports from 1970 to 2002, 33 years of record.
- 1,464 records set at Waterloo Wellington A 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, 43.45 latitude, -80.38 longitude.
- Elevation: 317 m (1,040 ft).
- Period of record: 1970 to 2002, 33 years.
- Eligible elements: none yet.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 11.1 C (52.0 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Feb | 10.6 C (51.1 F) | -29.2 C (-20.6 F) | n/a | n/a |
| Mar | 21.5 C (70.7 F) | -25.4 C (-13.7 F) | n/a | n/a |
| Apr | 27.2 C (81.0 F) | -16.1 C (3.0 F) | n/a | n/a |
| May | 30.8 C (87.4 F) | -3.9 C (25.0 F) | n/a | n/a |
| Jun | 33.3 C (91.9 F) | -0.6 C (30.9 F) | n/a | n/a |
| Jul | 33.4 C (92.1 F) | 5.0 C (41.0 F) | n/a | n/a |
| Aug | 34.4 C (93.9 F) | 1.1 C (34.0 F) | n/a | n/a |
| Sep | 33.3 C (91.9 F) | -3.3 C (26.1 F) | n/a | n/a |
| Oct | 29.4 C (84.9 F) | -8.3 C (17.1 F) | n/a | n/a |
| Nov | 21.7 C (71.1 F) | -12.8 C (9.0 F) | n/a | n/a |
| Dec | 18.7 C (65.7 F) | -27.2 C (-17.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1970 | 99 |
| 1971 | 129 |
| 1972 | 121 |
| 1973 | 114 |
| 1974 | 85 |
| 1975 | 104 |
| 1976 | 130 |
| 1977 | 92 |
| 1978 | 78 |
| 1979 | 123 |
| 1980 | 91 |
| 1981 | 92 |
| 1982 | 99 |
| 1983 | 107 |
Wettest Day of Each Month
Aug: 73.7 mm (2.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 30.4 mm (1.2 in) | 11 January 1980 |
| Feb | 30.5 mm (1.2 in) | 21 February 1976 |
| Mar | 53.8 mm (2.1 in) | 2 March 1976 |
| Apr | 36.6 mm (1.4 in) | 25 April 1976 |
| May | 41.1 mm (1.6 in) | 16 May 1974 |
| Jun | 39.9 mm (1.6 in) | 19 June 1975 |
| Jul | 43.0 mm (1.7 in) | 28 July 1980 |
| Aug | 73.7 mm (2.9 in) | 24 August 1975 |
| Sep | 53.1 mm (2.1 in) | 17 September 1976 |
| Oct | 39.2 mm (1.5 in) | 8 October 1977 |
| Nov | 44.5 mm (1.8 in) | 20 November 1974 |
| Dec | 32.5 mm (1.3 in) | 12 December 1972 |
Period of Record Coverage
1970 to 1983| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1970 | 306 | 84% | No |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
Latest Records
0No records were set at this station in the latest data.
Climate Trend
13 complete years, 1971 to 1983| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1971 | 6.9 C | +0.53 C |
| 1972 | 5.6 C | -0.78 C |
| 1973 | 7.4 C | +1.07 C |
| 1974 | 6.3 C | -0.06 C |
| 1975 | 7.2 C | +0.83 C |
| 1976 | 5.8 C | -0.53 C |
| 1977 | 6.5 C | +0.16 C |
| 1978 | 5.4 C | -0.94 C |
| 1979 | 6.1 C | -0.27 C |
| 1980 | 5.8 C | -0.54 C |
| 1981 | 6.5 C | +0.09 C |
| 1982 | 6.1 C | -0.26 C |
| 1983 | 7.1 C | +0.75 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| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 34.4 C (93.9 F) | 1973 | 32.4 C (90.3 F) | 14 |
| Coldest night (TNn) | -31.1 C (-24.0 F) | 1976 | -25.6 C (-14.1 F) | 14 |
| Wettest day (Rx1day) | 73.7 mm (2.9 in) | 1975 | 41.3 mm (1.6 in) | 14 |
| Wettest five days (Rx5day) | 116.7 mm (4.6 in) | 1975 | 66.1 mm (2.6 in) | 14 |
| Longest dry spell (CDD) | 27 days | 1973 | 17 days | 14 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1970 | 30.6 C (87.1 F) |
| 1971 | 33.3 C (91.9 F) |
| 1972 | 31.1 C (88.0 F) |
| 1973 | 34.4 C (93.9 F) |
| 1974 | 32.8 C (91.0 F) |
| 1975 | 33.9 C (93.0 F) |
| 1976 | 31.1 C (88.0 F) |
| 1977 | 33.0 C (91.4 F) |
| 1978 | 33.2 C (91.8 F) |
| 1979 | 31.1 C (88.0 F) |
| 1980 | 32.0 C (89.6 F) |
| 1981 | 31.8 C (89.2 F) |
| 1982 | 29.6 C (85.3 F) |
| 1983 | 33.4 C (92.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1970 | -23.3 C (-9.9 F) |
| 1971 | -25.6 C (-14.1 F) |
| 1972 | -23.9 C (-11.0 F) |
| 1973 | -25.0 C (-13.0 F) |
| 1974 | -24.4 C (-11.9 F) |
| 1975 | -24.4 C (-11.9 F) |
| 1976 | -31.1 C (-24.0 F) |
| 1977 | -30.0 C (-22.0 F) |
| 1978 | -28.6 C (-19.5 F) |
| 1979 | -29.2 C (-20.6 F) |
| 1980 | -27.2 C (-17.0 F) |
| 1981 | -29.3 C (-20.7 F) |
| 1982 | -25.6 C (-14.1 F) |
| 1983 | -21.1 C (-6.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1970 | 30.7 mm (1.2 in) |
| 1971 | 41.7 mm (1.6 in) |
| 1972 | 38.6 mm (1.5 in) |
| 1973 | 39.1 mm (1.5 in) |
| 1974 | 44.5 mm (1.8 in) |
| 1975 | 73.7 mm (2.9 in) |
| 1976 | 53.8 mm (2.1 in) |
| 1977 | 42.0 mm (1.7 in) |
| 1978 | 40.8 mm (1.6 in) |
| 1979 | 36.2 mm (1.4 in) |
| 1980 | 43.0 mm (1.7 in) |
| 1981 | 40.0 mm (1.6 in) |
| 1982 | 67.4 mm (2.7 in) |
| 1983 | 38.0 mm (1.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1970 | 45.5 mm (1.8 in) |
| 1971 | 43.8 mm (1.7 in) |
| 1972 | 62.8 mm (2.5 in) |
| 1973 | 65.1 mm (2.6 in) |
| 1974 | 64.9 mm (2.6 in) |
| 1975 | 116.7 mm (4.6 in) |
| 1976 | 79.4 mm (3.1 in) |
| 1977 | 79.6 mm (3.1 in) |
| 1978 | 100.0 mm (3.9 in) |
| 1979 | 63.8 mm (2.5 in) |
| 1980 | 49.0 mm (1.9 in) |
| 1981 | 67.0 mm (2.6 in) |
| 1982 | 77.2 mm (3.0 in) |
| 1983 | 77.6 mm (3.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1970 | 17 days |
| 1971 | 17 days |
| 1972 | 14 days |
| 1973 | 27 days |
| 1974 | 13 days |
| 1975 | 20 days |
| 1976 | 14 days |
| 1977 | 19 days |
| 1978 | 17 days |
| 1979 | 16 days |
| 1980 | 11 days |
| 1981 | 12 days |
| 1982 | 16 days |
| 1983 | 19 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
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).