St Lawrence Weather Records (CA008403615)

Record envelope, standing records and threshold days for St Lawrence (CA008403615), Newfoundland and Labrador, Canada, with 32 years of record.

Key Facts for St Lawrence

St Lawrence (CA008403615) is a weather station in Newfoundland and Labrador, Canada at 46.92 latitude and -55.38 longitude, 49 m (161 ft) above sea level.
The station reports from 1966 to 1997, 32 years of record.
1,464 records set at St Lawrence still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Newfoundland and Labrador, Canada, 46.92 latitude, -55.38 longitude.
Elevation: 49 m (161 ft).
Period of record: 1966 to 1997, 32 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at St Lawrence. 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 St Lawrence, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	10.7 C (51.3 F)	-20.6 C (-5.1 F)	n/a	n/a
Feb	7.2 C (45.0 F)	-25.0 C (-13.0 F)	n/a	n/a
Mar	10.0 C (50.0 F)	-17.8 C (0.0 F)	n/a	n/a
Apr	16.4 C (61.5 F)	-11.1 C (12.0 F)	n/a	n/a
May	19.4 C (66.9 F)	-8.9 C (16.0 F)	n/a	n/a
Jun	26.1 C (79.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	24.5 C (76.1 F)	3.9 C (39.0 F)	n/a	n/a
Aug	23.9 C (75.0 F)	3.2 C (37.8 F)	n/a	n/a
Sep	23.3 C (73.9 F)	-1.7 C (28.9 F)	n/a	n/a
Oct	18.3 C (64.9 F)	-5.3 C (22.5 F)	n/a	n/a
Nov	15.6 C (60.1 F)	-12.2 C (10.0 F)	n/a	n/a
Dec	11.0 C (51.8 F)	-19.4 C (-2.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at St Lawrence still stand. 1983 holds the most, with 122.

Wettest Day of Each Month

Sep: 93.0 mm (3.7 in)

The wettest day on record for each calendar month at St Lawrence. The most was 93.0 mm (3.7 in) on 1 September 1983.

Record daily precipitation for each month at St Lawrence
Month	Record daily precipitation (mm)	Date
Jan	70.1 mm (2.8 in)	5 January 1977
Feb	68.1 mm (2.7 in)	3 February 1967
Mar	54.1 mm (2.1 in)	27 March 1973
Apr	91.2 mm (3.6 in)	2 April 1983
May	54.6 mm (2.1 in)	6 May 1975
Jun	82.4 mm (3.2 in)	30 June 1982
Jul	55.6 mm (2.2 in)	14 July 1969
Aug	79.4 mm (3.1 in)	5 August 1979
Sep	93.0 mm (3.7 in)	1 September 1983
Oct	80.5 mm (3.2 in)	7 October 1975
Nov	46.0 mm (1.8 in)	24 November 1982
Dec	55.6 mm (2.2 in)	10 December 1974

Period of Record Coverage

1966 to 1983

18 years of record at St Lawrence, 1966 to 1983. Every year has data for at least 90 percent of its days.

Days with data per year at St Lawrence
Year	Days with data	Share of year	Complete
1966	330	90%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
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	349	96%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes

Latest Records

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

Climate Trend

17 complete years, 1967 to 1983

One stripe for each of 17 complete years at St Lawrence, 1967 to 1983. Blue stripes are years cooler than the station's own mean of 4.4 C (39.9 F); red stripes are warmer. The coolest year was 1972, at 3.0 C (37.5 F), and the warmest was 1981, at 5.8 C (42.5 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at St Lawrence as warming stripes, 1967 to 1983
Year	Annual mean temperature	Difference from the station mean
1967	4.5 C	+0.11 C
1968	4.5 C	+0.05 C
1969	5.2 C	+0.76 C
1970	4.9 C	+0.47 C
1971	4.5 C	+0.07 C
1972	3.0 C	-1.37 C
1973	4.2 C	-0.21 C
1974	3.6 C	-0.86 C
1975	3.4 C	-1.02 C
1976	4.3 C	-0.11 C
1977	4.4 C	-0.03 C
1978	4.0 C	-0.44 C
1979	4.7 C	+0.33 C
1980	4.1 C	-0.36 C
1981	5.8 C	+1.41 C
1982	4.4 C	+0.01 C
1983	5.7 C	+1.26 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

1966 to 1983

Yearly extremes at St Lawrence: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	26.1 C (79.0 F)	1976	22.5 C (72.5 F)	18
Coldest night (TNn)	-25.0 C (-13.0 F)	1975	-18.1 C (-0.7 F)	18
Wettest day (Rx1day)	93.0 mm (3.7 in)	1983	68.7 mm (2.7 in)	18
Wettest five days (Rx5day)	235.2 mm (9.3 in)	1970	93.4 mm (3.7 in)	18
Longest dry spell (CDD)	19 days	1978	12 days	18

Hottest day (TXx)

The hottest day of the year at St Lawrence, 1966 to 1983. The record is 26.1 C (79.0 F) in 1976, marked on the chart; the median year is 22.5 C (72.5 F).

Hottest day (TXx) at St Lawrence by year
Year	Hottest day (TXx)
1966	23.3 C (73.9 F)
1967	23.3 C (73.9 F)
1968	21.7 C (71.1 F)
1969	22.2 C (72.0 F)
1970	22.2 C (72.0 F)
1971	22.2 C (72.0 F)
1972	22.8 C (73.0 F)
1973	22.8 C (73.0 F)
1974	23.3 C (73.9 F)
1975	22.8 C (73.0 F)
1976	26.1 C (79.0 F)
1977	22.2 C (72.0 F)
1978	22.0 C (71.6 F)
1979	21.5 C (70.7 F)
1980	22.1 C (71.8 F)
1981	22.2 C (72.0 F)
1982	24.5 C (76.1 F)
1983	23.2 C (73.8 F)

Coldest night (TNn)

The coldest night of the year at St Lawrence, 1966 to 1983. The record is -25.0 C (-13.0 F) in 1975, marked on the chart; the median year is -18.1 C (-0.7 F).

Coldest night (TNn) at St Lawrence by year
Year	Coldest night (TNn)
1966	-14.4 C (6.1 F)
1967	-16.7 C (1.9 F)
1968	-16.1 C (3.0 F)
1969	-12.8 C (9.0 F)
1970	-18.3 C (-0.9 F)
1971	-22.2 C (-8.0 F)
1972	-20.6 C (-5.1 F)
1973	-17.8 C (0.0 F)
1974	-20.6 C (-5.1 F)
1975	-25.0 C (-13.0 F)
1976	-18.3 C (-0.9 F)
1977	-17.9 C (-0.2 F)
1978	-18.9 C (-2.0 F)
1979	-18.8 C (-1.8 F)
1980	-16.1 C (3.0 F)
1981	-18.0 C (-0.4 F)
1982	-19.7 C (-3.5 F)
1983	-15.3 C (4.5 F)

Wettest day (Rx1day)

The wettest day of the year at St Lawrence, 1966 to 1983. The record is 93.0 mm (3.7 in) in 1983, marked on the chart; the median year is 68.7 mm (2.7 in).

Wettest day (Rx1day) at St Lawrence by year
Year	Wettest day (Rx1day)
1966	69.3 mm (2.7 in)
1967	68.1 mm (2.7 in)
1968	42.4 mm (1.7 in)
1969	66.0 mm (2.6 in)
1970	73.7 mm (2.9 in)
1971	40.4 mm (1.6 in)
1972	62.0 mm (2.4 in)
1973	76.5 mm (3.0 in)
1974	67.1 mm (2.6 in)
1975	80.5 mm (3.2 in)
1976	37.3 mm (1.5 in)
1977	70.1 mm (2.8 in)
1978	72.0 mm (2.8 in)
1979	79.4 mm (3.1 in)
1980	46.6 mm (1.8 in)
1981	51.7 mm (2.0 in)
1982	82.4 mm (3.2 in)
1983	93.0 mm (3.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at St Lawrence, 1966 to 1983. The record is 235.2 mm (9.3 in) in 1970, marked on the chart; the median year is 93.4 mm (3.7 in).

Wettest five days (Rx5day) at St Lawrence by year
Year	Wettest five days (Rx5day)
1966	70.1 mm (2.8 in)
1967	99.0 mm (3.9 in)
1968	84.1 mm (3.3 in)
1969	109.7 mm (4.3 in)
1970	235.2 mm (9.3 in)
1971	83.9 mm (3.3 in)
1972	78.7 mm (3.1 in)
1973	92.8 mm (3.7 in)
1974	101.6 mm (4.0 in)
1975	112.0 mm (4.4 in)
1976	79.5 mm (3.1 in)
1977	99.5 mm (3.9 in)
1978	90.6 mm (3.6 in)
1979	107.6 mm (4.2 in)
1980	76.6 mm (3.0 in)
1981	85.6 mm (3.4 in)
1982	93.9 mm (3.7 in)
1983	127.4 mm (5.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at St Lawrence, 1966 to 1983. The record is 19 days in 1978, marked on the chart; the median year is 12 days.

Longest dry spell (CDD) at St Lawrence by year
Year	Longest dry spell (CDD)
1966	13 days
1967	15 days
1968	14 days
1969	12 days
1970	11 days
1971	13 days
1972	11 days
1973	13 days
1974	11 days
1975	16 days
1976	11 days
1977	10 days
1978	19 days
1979	9 days
1980	9 days
1981	18 days
1982	11 days
1983	10 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 St Lawrence standing records by year: CSV or JSON. Field meanings are on the data page.
Data for St Lawrence 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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