Myrtle Weather Records (CA005021975)

Record envelope, standing records and threshold days for Myrtle (CA005021975), Manitoba, Canada, with 38 years of record.

Key Facts for Myrtle

Myrtle (CA005021975) is a weather station in Manitoba, Canada at 49.40 latitude and -97.78 longitude, 248 m (814 ft) above sea level.
The station reports from 1966 to 2003, 38 years of record.
1,464 records set at Myrtle still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Manitoba, Canada, 49.40 latitude, -97.78 longitude.
Elevation: 248 m (814 ft).
Period of record: 1966 to 2003, 38 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 Myrtle. 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 Myrtle, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	7.0 C (44.6 F)	-39.4 C (-38.9 F)	n/a	n/a
Feb	10.5 C (50.9 F)	-38.3 C (-36.9 F)	n/a	n/a
Mar	16.7 C (62.1 F)	-35.6 C (-32.1 F)	n/a	n/a
Apr	30.0 C (86.0 F)	-27.2 C (-17.0 F)	n/a	n/a
May	39.0 C (102.2 F)	-10.0 C (14.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	36.7 C (98.1 F)	2.0 C (35.6 F)	n/a	n/a
Aug	38.5 C (101.3 F)	-1.5 C (29.3 F)	n/a	n/a
Sep	39.5 C (103.1 F)	-6.1 C (21.0 F)	n/a	n/a
Oct	27.2 C (81.0 F)	-16.1 C (3.0 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-30.5 C (-22.9 F)	n/a	n/a
Dec	14.4 C (57.9 F)	-38.3 C (-36.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Myrtle still stand. 1983 holds the most, with 110.

Wettest Day of Each Month

Jul: 81.5 mm (3.2 in)

The wettest day on record for each calendar month at Myrtle. The most was 81.5 mm (3.2 in) on 1 July 1966.

Record daily precipitation for each month at Myrtle
Month	Record daily precipitation (mm)	Date
Jan	16.0 mm (0.6 in)	10 January 1980
Feb	17.8 mm (0.7 in)	27 February 1974
Mar	24.6 mm (1.0 in)	13 March 1971
Apr	42.4 mm (1.7 in)	19 April 1967
May	59.7 mm (2.4 in)	19 May 1974
Jun	57.2 mm (2.3 in)	30 June 1968
Jul	81.5 mm (3.2 in)	1 July 1966
Aug	67.0 mm (2.6 in)	26 August 1978
Sep	55.2 mm (2.2 in)	12 September 1978
Oct	27.2 mm (1.1 in)	16 October 1980
Nov	22.9 mm (0.9 in)	20 November 1977
Dec	20.3 mm (0.8 in)	22 December 1974

Period of Record Coverage

1966 to 1983

18 years of record at Myrtle, 1966 to 1983. 3 years have data for under 90 percent of days and are left out of rankings: 1966, 1976, 1977.

Days with data per year at Myrtle
Year	Days with data	Share of year	Complete
1966	195	53%	No
1967	358	98%	Yes
1968	364	99%	Yes
1969	359	98%	Yes
1970	361	99%	Yes
1971	358	98%	Yes
1972	359	98%	Yes
1973	339	93%	Yes
1974	350	96%	Yes
1975	362	99%	Yes
1976	291	80%	No
1977	269	74%	No
1978	363	99%	Yes
1979	361	99%	Yes
1980	354	97%	Yes
1981	351	96%	Yes
1982	365	100%	Yes
1983	365	100%	Yes

Latest Records

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

Climate Trend

13 complete years, 1967 to 1983

One stripe for each of 13 complete years at Myrtle, 1967 to 1983. Blue stripes are years cooler than the station's own mean of 2.0 C (35.6 F); red stripes are warmer. The coolest year was 1979, at 0.4 C (32.7 F), and the warmest was 1983, at 3.4 C (38.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Myrtle as warming stripes, 1967 to 1983
Year	Annual mean temperature	Difference from the station mean
1967	1.5 C	-0.45 C
1968	2.5 C	+0.50 C
1969	2.3 C	+0.29 C
1970	1.2 C	-0.77 C
1971	2.1 C	+0.14 C
1972	1.2 C	-0.84 C
1973	3.3 C	+1.33 C
1974	1.9 C	-0.14 C
1975	2.5 C	+0.49 C
1978	1.7 C	-0.28 C
1979	0.4 C	-1.58 C
1982	1.9 C	-0.13 C
1983	3.4 C	+1.44 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 Myrtle: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.5 C (103.1 F)	1983	36.9 C (98.3 F)	18
Coldest night (TNn)	-39.4 C (-38.9 F)	1970	-35.6 C (-32.1 F)	18
Wettest day (Rx1day)	81.5 mm (3.2 in)	1966	49.1 mm (1.9 in)	18
Wettest five days (Rx5day)	157.7 mm (6.2 in)	1966	62.8 mm (2.5 in)	18
Longest dry spell (CDD)	48 days	1980	23 days	18

Hottest day (TXx)

The hottest day of the year at Myrtle, 1966 to 1983. The record is 39.5 C (103.1 F) in 1983, marked on the chart; the median year is 36.9 C (98.3 F).

Hottest day (TXx) at Myrtle by year
Year	Hottest day (TXx)
1966	32.8 C (91.0 F)
1967	35.0 C (95.0 F)
1968	35.0 C (95.0 F)
1969	37.8 C (100.0 F)
1970	38.3 C (100.9 F)
1971	35.0 C (95.0 F)
1972	38.3 C (100.9 F)
1973	35.6 C (96.1 F)
1974	37.2 C (99.0 F)
1975	36.7 C (98.1 F)
1976	37.2 C (99.0 F)
1977	33.9 C (93.0 F)
1978	38.0 C (100.4 F)
1979	37.0 C (98.6 F)
1980	39.0 C (102.2 F)
1981	33.5 C (92.3 F)
1982	35.5 C (95.9 F)
1983	39.5 C (103.1 F)

Coldest night (TNn)

The coldest night of the year at Myrtle, 1966 to 1983. The record is -39.4 C (-38.9 F) in 1970, marked on the chart; the median year is -35.6 C (-32.1 F).

Coldest night (TNn) at Myrtle by year
Year	Coldest night (TNn)
1966	-29.4 C (-20.9 F)
1967	-38.3 C (-36.9 F)
1968	-38.9 C (-38.0 F)
1969	-35.6 C (-32.1 F)
1970	-39.4 C (-38.9 F)
1971	-36.1 C (-33.0 F)
1972	-37.8 C (-36.0 F)
1973	-35.6 C (-32.1 F)
1974	-37.8 C (-36.0 F)
1975	-32.8 C (-27.0 F)
1976	-33.9 C (-29.0 F)
1977	-34.4 C (-29.9 F)
1978	-35.5 C (-31.9 F)
1979	-37.5 C (-35.5 F)
1980	-35.5 C (-31.9 F)
1981	-33.0 C (-27.4 F)
1982	-36.5 C (-33.7 F)
1983	-35.5 C (-31.9 F)

Wettest day (Rx1day)

The wettest day of the year at Myrtle, 1966 to 1983. The record is 81.5 mm (3.2 in) in 1966, marked on the chart; the median year is 49.1 mm (1.9 in).

Wettest day (Rx1day) at Myrtle by year
Year	Wettest day (Rx1day)
1966	81.5 mm (3.2 in)
1967	42.4 mm (1.7 in)
1968	57.2 mm (2.3 in)
1969	22.9 mm (0.9 in)
1970	46.2 mm (1.8 in)
1971	35.3 mm (1.4 in)
1972	14.2 mm (0.6 in)
1973	42.4 mm (1.7 in)
1974	59.7 mm (2.4 in)
1975	53.8 mm (2.1 in)
1976	57.2 mm (2.3 in)
1977	39.9 mm (1.6 in)
1978	67.0 mm (2.6 in)
1979	33.4 mm (1.3 in)
1980	56.0 mm (2.2 in)
1981	57.8 mm (2.3 in)
1982	52.0 mm (2.0 in)
1983	24.8 mm (1.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Myrtle, 1966 to 1983. The record is 157.7 mm (6.2 in) in 1966, marked on the chart; the median year is 62.8 mm (2.5 in).

Wettest five days (Rx5day) at Myrtle by year
Year	Wettest five days (Rx5day)
1966	157.7 mm (6.2 in)
1967	86.6 mm (3.4 in)
1968	62.8 mm (2.5 in)
1969	59.7 mm (2.4 in)
1970	59.9 mm (2.4 in)
1971	46.2 mm (1.8 in)
1972	24.2 mm (1.0 in)
1973	58.7 mm (2.3 in)
1974	102.4 mm (4.0 in)
1975	91.4 mm (3.6 in)
1976	79.8 mm (3.1 in)
1977	61.4 mm (2.4 in)
1978	84.8 mm (3.3 in)
1979	41.8 mm (1.6 in)
1980	62.8 mm (2.5 in)
1981	71.9 mm (2.8 in)
1982	70.8 mm (2.8 in)
1983	44.8 mm (1.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Myrtle, 1966 to 1983. The record is 48 days in 1980, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Myrtle by year
Year	Longest dry spell (CDD)
1966	15 days
1967	28 days
1968	16 days
1969	47 days
1970	17 days
1971	26 days
1972	15 days
1973	29 days
1974	24 days
1975	27 days
1976	24 days
1977	20 days
1978	22 days
1979	21 days
1980	48 days
1981	22 days
1982	16 days
1983	24 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 Myrtle standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Myrtle 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).