St Peters is a weather station located 30 m above sea level, 30 km from Three Rivers. Its records go back to 1961: 58 years of temperature are available up to 2020, along with rainfall and a comparison with two reference normals. Closed series: the records of this station end in 2020. Over 1991–2020 the annual mean temperature there is 6.2 °C, clearly higher than over 1961–1990 (5.3 °C): a difference of 1.0 °C. The warmest year of the series is 2006 (7.9 °C) and the coldest 1972 (4.1 °C). The last complete year, 2020, ranks 3 out of 58, from warmest to coldest. Over 1961–2020, the annual mean temperature changes by +0.36 °C per decade. The station ranks 27 out of 240 stations, from the fastest rise to the slowest.
Annual mean temperature since 1961
The first ten years of the series (1961–1970) average 5.2 °C; the last ten (2011–2020) average 6.6 °C, a difference of +1.4 °C. Of the ten warmest years in the series, 8 fall after 1999. The warmest is 2006 (7.9 °C). The ten-year running mean peaks at 6.8 °C (2012) and bottoms out at 5.0 °C (1968).
Annual rainfall since 1961
On average 1292 mm of rain falls per year over the 41 documented years. The wettest year, 1990, received 1643 mm; the driest, 1966, only 852 mm, which is 1.9 times less. Over 1961–1990, December is on average the wettest month (150 mm) and July the driest (70 mm). Between 1984 and 2003, 12 years out of 20 exceeded the series average.
Monthly normals: 1961–1990 against 1991–2020
The table compares, month by month, the mean temperature and the rainfall total of two thirty-year reference periods. The difference column shows what the recent period changes compared with the earlier one.
| Month | Temp. 1961–1990 | Temp. 1991–2020 | Difference | Rain 1961–1990 | Rain 1991–2020 | Difference |
|---|---|---|---|---|---|---|
| January | −6.9 °C | −6.0 °C | +0.9 °C | 129 mm | – | – |
| February | −7.7 °C | −6.5 °C | +1.2 °C | 103 mm | – | – |
| March | −3.4 °C | −2.5 °C | +0.9 °C | 109 mm | – | – |
| April | 1.8 °C | 2.8 °C | +1.0 °C | 95 mm | – | – |
| May | 7.9 °C | 8.6 °C | +0.7 °C | 88 mm | – | – |
| June | 13.8 °C | 14.3 °C | +0.5 °C | 89 mm | – | – |
| July | 18.1 °C | 18.9 °C | +0.8 °C | 70 mm | – | – |
| August | 17.9 °C | 18.8 °C | +0.9 °C | 96 mm | – | – |
| September | 13.4 °C | 15.0 °C | +1.6 °C | 99 mm | – | – |
| October | 8.3 °C | 9.2 °C | +0.9 °C | 119 mm | – | – |
| November | 3.2 °C | 4.0 °C | +0.8 °C | 137 mm | – | – |
| December | −3.2 °C | −1.6 °C | +1.6 °C | 150 mm | – | – |
The largest temperature change is in December (+1.6 °C) and the smallest in June (+0.5 °C); over the year the mean difference is +1.0 °C, and 12 months out of twelve are warmer than before.
Records at St Peters
- Warmest year: 7.9 °C, in 2006
- Coldest year: 4.1 °C, in 1972
- Driest year: 852 mm, in 1966
- Wettest year: 1643 mm, in 1990
- Warmest month: 21.4 °C, in July 2014
- Coldest month: −11.7 °C, in February 1962
- Wettest month: 294 mm, in December 1990
3.8 °C separate the warmest year of the series from the coldest. Daily records are not part of the dataset for this station: only annual and monthly extremes are shown.
Temperature trend over 1961–2020
The regression line of annual mean temperature changes by +0.36 °C per decade between 1961 and 2020, about +2.1 °C over the whole period. That is faster than the median of the 240 stations (+0.25 °C per decade), by 0.11 °C per decade: the station ranks 27 out of 240.
Data source and licence
Data source: Environment and Climate Change Canada (dataset “AHCCD (ahccd-monthly) + climate-daily”), licence Open Government Licence – Canada. Last updated: 29 October 2026.
The data for St Peters are shown as the source publishes them; this site does not correct them. A year is kept only if at least eleven months of measurements are available, and a normal is computed only with at least twenty years of data out of its thirty. Temperatures are rounded to 0.1 °C and rainfall to the millimetre. The station is one of 240 stations in Canada: the overview page lets you compare them.
Frequently asked questions
What is the annual mean temperature at St Peters?
Over 1991–2020, the annual mean temperature at St Peters is 6.2 °C. It was 5.3 °C over 1961–1990, a difference of +1.0 °C.
What is the warmest year ever measured at St Peters?
Since records began in 1961, the warmest year at St Peters is 2006, at 7.9 °C on average. The coldest is 1972 (4.1 °C).
Is the climate at St Peters getting warmer?
Yes: at St Peters, the annual mean temperature rises by 0.36 °C per decade between 1961 and 2020, +2.1 °C in total. 8 of the 10 warmest years in the series fall after 1999.
Towns near this station
Neighbouring stations