Yellow Grass Weather Records (CA004019040)

Record envelope, standing records and threshold days for Yellow Grass (CA004019040), Saskatchewan, Canada, with 107 years of record.

Key Facts for Yellow Grass

Yellow Grass (CA004019040) is a weather station in Saskatchewan, Canada at 49.82 latitude and -104.18 longitude, 580 m (1,903 ft) above sea level.
The station reports from 1911 to 2017, 107 years of record.
1,464 records set at Yellow Grass still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Yellow Grass set a monthly record low maximum temperature of -35.0 C (-31.0 F) on 23 December 1983.

About the Station

Location: Saskatchewan, Canada, 49.82 latitude, -104.18 longitude.
Elevation: 580 m (1,903 ft).
Period of record: 1911 to 2017, 107 years.
Eligible elements: tmax, tmin, prcp, snow.

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 Yellow Grass. 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 Yellow Grass, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	13.3 C (55.9 F)	-45.6 C (-50.1 F)	n/a	n/a
Feb	17.8 C (64.0 F)	-45.0 C (-49.0 F)	n/a	n/a
Mar	22.8 C (73.0 F)	-44.4 C (-47.9 F)	n/a	n/a
Apr	33.0 C (91.4 F)	-28.9 C (-20.0 F)	n/a	n/a
May	39.0 C (102.2 F)	-13.3 C (8.1 F)	n/a	n/a
Jun	38.9 C (102.0 F)	-5.0 C (23.0 F)	n/a	n/a
Jul	45.0 C (113.0 F)	-1.7 C (28.9 F)	n/a	n/a
Aug	39.5 C (103.1 F)	-2.2 C (28.0 F)	n/a	n/a
Sep	37.2 C (99.0 F)	-13.3 C (8.1 F)	n/a	n/a
Oct	32.2 C (90.0 F)	-23.9 C (-11.0 F)	n/a	n/a
Nov	23.9 C (75.0 F)	-33.3 C (-27.9 F)	n/a	n/a
Dec	16.7 C (62.1 F)	-43.0 C (-45.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Yellow Grass still stand. 1931 holds the most, with 48.

Standing records at Yellow Grass by the year they were set
Year set	Standing records
1911	13
1912	16
1913	13
1914	28
1915	16
1916	23
1917	17
1918	35
1919	32
1920	24
1921	23
1922	24
1923	16
1924	16
1925	21
1926	9
1927	19
1928	29
1929	24
1930	13
1931	48
1932	24
1933	13
1934	45
1935	19
1936	42
1937	26
1938	10
1939	39
1940	23
1941	15
1942	22
1943	23
1944	16
1945	23
1946	18
1947	16
1948	16
1949	17
1950	23
1951	28
1952	13
1953	13
1954	35
1955	12
1956	21
1957	14
1958	23
1959	17
1960	9
1961	19
1962	11
1963	17
1964	21
1965	18
1966	14
1967	16
1968	20
1969	19
1970	8
1971	4
1972	20
1973	21
1974	13
1975	14
1976	7
1977	24
1978	16
1979	19
1980	24
1981	23
1982	9
1983	33

All-Time Record Progression

4 new records

4 all-time records were set at Yellow Grass between 9 July 1946 and 6 May 1979. Each dot is a new record.

When Yellow Grass set new all-time records
Date	Kind	Detail
1946-07-09	Record daily precipitation	Record daily precipitation 86.9 mm (3.4 in)
1975-12-30	Record daily snowfall	Record daily snowfall 33.0 cm (13.0 in)
1978-09-10	Record daily precipitation	Record daily precipitation 91.0 mm (3.6 in)
1979-05-06	Record daily snowfall	Record daily snowfall 35.6 cm (14.0 in)

Wettest Day of Each Month

Sep: 91.0 mm (3.6 in)

The wettest day on record for each calendar month at Yellow Grass. The most was 91.0 mm (3.6 in) on 10 September 1978.

Record daily precipitation for each month at Yellow Grass
Month	Record daily precipitation (mm)	Date
Jan	16.5 mm (0.6 in)	28 January 1956
Feb	25.4 mm (1.0 in)	19 February 1930
Mar	30.5 mm (1.2 in)	4 March 1935
Apr	33.8 mm (1.3 in)	19 April 1955
May	49.5 mm (1.9 in)	31 May 1923
Jun	63.5 mm (2.5 in)	18 June 1926
Jul	86.9 mm (3.4 in)	9 July 1946
Aug	57.2 mm (2.3 in)	6 August 1931
Sep	91.0 mm (3.6 in)	10 September 1978
Oct	42.9 mm (1.7 in)	18 October 1971
Nov	25.4 mm (1.0 in)	30 November 1923
Dec	33.0 mm (1.3 in)	30 December 1975

Period of Record Coverage

1911 to 1983

73 years of record at Yellow Grass, 1911 to 1983. 8 years have data for under 90 percent of days and are left out of rankings: 1911, 1913, 1916, 1917, 1919, 1924, 1952, 1982.

Days with data per year at Yellow Grass
Year	Days with data	Share of year	Complete
1911	151	41%	No
1912	330	90%	Yes
1913	322	88%	No
1914	355	97%	Yes
1915	362	99%	Yes
1916	328	90%	No
1917	267	73%	No
1918	358	98%	Yes
1919	324	89%	No
1920	354	97%	Yes
1921	362	99%	Yes
1922	362	99%	Yes
1923	357	98%	Yes
1924	302	83%	No
1925	365	100%	Yes
1926	335	92%	Yes
1927	364	100%	Yes
1928	364	99%	Yes
1929	363	99%	Yes
1930	333	91%	Yes
1931	365	100%	Yes
1932	334	91%	Yes
1933	361	99%	Yes
1934	364	100%	Yes
1935	351	96%	Yes
1936	363	99%	Yes
1937	336	92%	Yes
1938	364	100%	Yes
1939	361	99%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	362	99%	Yes
1943	342	94%	Yes
1944	354	97%	Yes
1945	356	98%	Yes
1946	358	98%	Yes
1947	352	96%	Yes
1948	365	100%	Yes
1949	359	98%	Yes
1950	348	95%	Yes
1951	359	98%	Yes
1952	297	81%	No
1953	355	97%	Yes
1954	354	97%	Yes
1955	344	94%	Yes
1956	362	99%	Yes
1957	362	99%	Yes
1958	363	99%	Yes
1959	359	98%	Yes
1960	358	98%	Yes
1961	360	99%	Yes
1962	361	99%	Yes
1963	360	99%	Yes
1964	356	97%	Yes
1965	361	99%	Yes
1966	359	98%	Yes
1967	359	98%	Yes
1968	365	100%	Yes
1969	358	98%	Yes
1970	360	99%	Yes
1971	365	100%	Yes
1972	362	99%	Yes
1973	346	95%	Yes
1974	364	100%	Yes
1975	361	99%	Yes
1976	357	98%	Yes
1977	335	92%	Yes
1978	358	98%	Yes
1979	359	98%	Yes
1980	360	98%	Yes
1981	360	99%	Yes
1982	299	82%	No
1983	347	95%	Yes

Latest Records

Latest records at Yellow Grass
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 December 1983	Yellow Grass, CA	monthly low max	-35.0 C (-31.0 F)	2.8 C (5.0 F)	14 years	24 of 100 (Routine)
23 December 1983	Yellow Grass, CA	monthly low min	-43.0 C (-45.4 F)	1.9 C (3.4 F)	8 years	21 of 100 (Routine)
22 December 1983	Yellow Grass, CA	daily low max	-31.5 C (-24.7 F)	6.5 C (11.7 F)	58 years	31 of 100 (Routine)
22 December 1983	Yellow Grass, CA	daily low min	-36.0 C (-32.8 F)	2.1 C (3.8 F)	37 years	20 of 100 (Routine)
21 December 1983	Yellow Grass, CA	daily low max	-28.0 C (-18.4 F)	1.9 C (3.4 F)	58 years	26 of 100 (Routine)
20 December 1983	Yellow Grass, CA	daily low max	-28.0 C (-18.4 F)	3.0 C (5.4 F)	58 years	27 of 100 (Routine)
20 December 1983	Yellow Grass, CA	daily low min	-37.5 C (-35.5 F)	0.3 C (0.5 F)	21 years	13 of 100 (Routine)
19 December 1983	Yellow Grass, CA	daily low max	-28.0 C (-18.4 F)	2.4 C (4.3 F)	12 years	12 of 100 (Routine)
18 December 1983	Yellow Grass, CA	daily low min	-36.0 C (-32.8 F)	1.0 C (1.8 F)	53 years	24 of 100 (Routine)
7 November 1983	Yellow Grass, CA	daily high min	2.0 C (35.6 F)	0.9 C (1.6 F)	8 years	10 of 100 (Routine)
4 November 1983	Yellow Grass, CA	daily high min	5.0 C (41.0 F)	1.7 C (3.1 F)	8 years	11 of 100 (Routine)
30 September 1983	Yellow Grass, CA	daily snowfall	7.0 cm (2.8 in)	7.0 cm (2.8 in)	72 years	42 of 100 (Notable)
30 September 1983	Yellow Grass, CA	daily low max	1.0 C (33.8 F)	1.2 C (2.2 F)	32 years	17 of 100 (Routine)
22 September 1983	Yellow Grass, CA	daily low min	-6.5 C (20.3 F)	0.9 C (1.6 F)	54 years	25 of 100 (Routine)
20 September 1983	Yellow Grass, CA	daily low max	6.0 C (42.8 F)	1.2 C (2.2 F)	9 years	10 of 100 (Routine)
19 September 1983	Yellow Grass, CA	daily low max	5.0 C (41.0 F)	1.7 C (3.1 F)	56 years	25 of 100 (Routine)
2 September 1983	Yellow Grass, CA	monthly high min	19.0 C (66.2 F)	0.1 C (0.2 F)	60 years	35 of 100 (Notable)
1 September 1983	Yellow Grass, CA	daily high max	37.0 C (98.6 F)	2.0 C (3.6 F)	42 years	21 of 100 (Routine)
31 August 1983	Yellow Grass, CA	daily high max	39.0 C (102.2 F)	1.2 C (2.2 F)	53 years	25 of 100 (Routine)
31 August 1983	Yellow Grass, CA	daily high min	17.0 C (62.6 F)	0.3 C (0.5 F)	61 years	25 of 100 (Routine)

Climate Trend

53 complete years, 1914 to 1983

One stripe for each of 53 complete years at Yellow Grass, 1914 to 1983. Blue stripes are years cooler than the station's own mean of 2.7 C (36.9 F); red stripes are warmer. The coolest year was 1951, at -0.3 C (31.5 F), and the warmest was 1931, at 5.5 C (41.8 F). The strongest colour marks a difference of 3.1 C (5.6 F).

Annual mean temperature at Yellow Grass as warming stripes, 1914 to 1983
Year	Annual mean temperature	Difference from the station mean
1914	2.8 C	+0.04 C
1915	3.0 C	+0.31 C
1918	2.8 C	+0.07 C
1920	3.0 C	+0.23 C
1921	3.7 C	+0.96 C
1922	2.6 C	-0.13 C
1923	3.4 C	+0.65 C
1925	2.7 C	-0.08 C
1928	3.3 C	+0.52 C
1929	1.8 C	-0.96 C
1931	5.5 C	+2.73 C
1933	2.8 C	+0.11 C
1934	4.4 C	+1.65 C
1936	1.2 C	-1.54 C
1938	3.6 C	+0.84 C
1939	3.2 C	+0.46 C
1940	2.7 C	-0.08 C
1941	3.2 C	+0.47 C
1942	3.0 C	+0.29 C
1944	3.1 C	+0.35 C
1945	1.5 C	-1.19 C
1946	2.6 C	-0.16 C
1947	2.1 C	-0.65 C
1948	2.1 C	-0.67 C
1949	2.5 C	-0.27 C
1951	-0.3 C	-3.02 C
1953	3.9 C	+1.21 C
1954	3.0 C	+0.24 C
1956	1.6 C	-1.09 C
1957	2.9 C	+0.19 C
1958	3.4 C	+0.63 C
1959	2.7 C	-0.07 C
1960	2.5 C	-0.20 C
1961	3.3 C	+0.55 C
1962	3.0 C	+0.31 C
1963	3.9 C	+1.14 C
1964	2.7 C	-0.05 C
1965	1.3 C	-1.43 C
1966	1.8 C	-0.90 C
1967	2.6 C	-0.18 C
1968	2.9 C	+0.14 C
1969	1.8 C	-0.89 C
1970	1.5 C	-1.27 C
1971	2.3 C	-0.42 C
1972	1.7 C	-1.03 C
1974	2.7 C	+0.00 C
1975	2.4 C	-0.30 C
1976	3.7 C	+1.00 C
1978	2.0 C	-0.70 C
1979	1.5 C	-1.28 C
1980	3.5 C	+0.79 C
1981	4.8 C	+2.11 C
1983	3.2 C	+0.49 C

The fitted trend in annual mean temperature here over 1914 to 1983 is -0.1 C (-0.2 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.4 to 0.1) per decade. The slope is a straight line fitted to 53 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Yellow Grass
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.1 C (-0.2 to 0.1) per decade	-0.1 F (-0.4 to 0.1) per decade	1914 to 1983	53	Not clearly different from zero
Mean daily maximum	-0.11 C (-0.27 to 0.05) per decade	-0.2 F (-0.5 to 0.1) per decade	1914 to 1983	53	Not clearly different from zero
Mean daily minimum	-0.03 C (-0.16 to 0.10) per decade	-0.1 F (-0.3 to 0.2) per decade	1914 to 1983	53	Not clearly different from zero

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

1911 to 1983

Yearly extremes at Yellow Grass: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	1937	37.5 C (99.5 F)	73
Coldest night (TNn)	-45.6 C (-50.1 F)	1916	-37.8 C (-36.0 F)	73
Wettest day (Rx1day)	91.0 mm (3.6 in)	1978	37.8 mm (1.5 in)	73
Wettest five days (Rx5day)	117.1 mm (4.6 in)	1946	52.6 mm (2.1 in)	73
Longest dry spell (CDD)	69 days	1968	31 days	73

Hottest day (TXx)

The hottest day of the year at Yellow Grass, 1911 to 1983. The record is 45.0 C (113.0 F) in 1937, marked on the chart; the median year is 37.5 C (99.5 F).

Hottest day (TXx) at Yellow Grass by year
Year	Hottest day (TXx)
1911	29.4 C (84.9 F)
1912	36.1 C (97.0 F)
1913	32.8 C (91.0 F)
1914	38.9 C (102.0 F)
1915	35.0 C (95.0 F)
1916	32.8 C (91.0 F)
1917	41.7 C (107.1 F)
1918	38.9 C (102.0 F)
1919	36.7 C (98.1 F)
1920	37.8 C (100.0 F)
1921	36.7 C (98.1 F)
1922	34.4 C (93.9 F)
1923	33.3 C (91.9 F)
1924	33.3 C (91.9 F)
1925	36.7 C (98.1 F)
1926	37.2 C (99.0 F)
1927	32.2 C (90.0 F)
1928	34.4 C (93.9 F)
1929	40.6 C (105.1 F)
1930	37.2 C (99.0 F)
1931	41.1 C (106.0 F)
1932	37.2 C (99.0 F)
1933	38.3 C (100.9 F)
1934	37.8 C (100.0 F)
1935	36.1 C (97.0 F)
1936	41.1 C (106.0 F)
1937	45.0 C (113.0 F)
1938	36.7 C (98.1 F)
1939	37.8 C (100.0 F)
1940	37.8 C (100.0 F)
1941	40.0 C (104.0 F)
1942	37.2 C (99.0 F)
1943	36.1 C (97.0 F)
1944	36.1 C (97.0 F)
1945	37.8 C (100.0 F)
1946	38.9 C (102.0 F)
1947	37.8 C (100.0 F)
1948	35.6 C (96.1 F)
1949	38.9 C (102.0 F)
1950	33.3 C (91.9 F)
1951	39.4 C (102.9 F)
1952	38.9 C (102.0 F)
1953	31.7 C (89.1 F)
1954	32.2 C (90.0 F)
1955	34.4 C (93.9 F)
1956	36.7 C (98.1 F)
1957	38.3 C (100.9 F)
1958	38.9 C (102.0 F)
1959	38.3 C (100.9 F)
1960	39.4 C (102.9 F)
1961	38.9 C (102.0 F)
1962	33.9 C (93.0 F)
1963	36.7 C (98.1 F)
1964	36.1 C (97.0 F)
1965	38.3 C (100.9 F)
1966	39.4 C (102.9 F)
1967	38.9 C (102.0 F)
1968	37.8 C (100.0 F)
1969	37.8 C (100.0 F)
1970	35.6 C (96.1 F)
1971	38.3 C (100.9 F)
1972	37.8 C (100.0 F)
1973	37.2 C (99.0 F)
1974	36.7 C (98.1 F)
1975	38.9 C (102.0 F)
1976	37.8 C (100.0 F)
1977	34.4 C (93.9 F)
1978	37.0 C (98.6 F)
1979	37.5 C (99.5 F)
1980	39.0 C (102.2 F)
1981	37.5 C (99.5 F)
1982	33.5 C (92.3 F)
1983	39.5 C (103.1 F)

Coldest night (TNn)

The coldest night of the year at Yellow Grass, 1911 to 1983. The record is -45.6 C (-50.1 F) in 1916, marked on the chart; the median year is -37.8 C (-36.0 F).

Coldest night (TNn) at Yellow Grass by year
Year	Coldest night (TNn)
1911	-32.8 C (-27.0 F)
1912	-41.7 C (-43.1 F)
1913	-42.2 C (-44.0 F)
1914	-39.4 C (-38.9 F)
1915	-40.0 C (-40.0 F)
1916	-45.6 C (-50.1 F)
1917	-35.6 C (-32.1 F)
1918	-37.8 C (-36.0 F)
1919	-40.0 C (-40.0 F)
1920	-40.0 C (-40.0 F)
1921	-31.7 C (-25.1 F)
1922	-40.0 C (-40.0 F)
1923	-36.7 C (-34.1 F)
1924	-35.6 C (-32.1 F)
1925	-35.0 C (-31.0 F)
1926	-33.3 C (-27.9 F)
1927	-37.8 C (-36.0 F)
1928	-37.2 C (-35.0 F)
1929	-40.0 C (-40.0 F)
1930	-38.3 C (-36.9 F)
1931	-26.1 C (-15.0 F)
1932	-34.4 C (-29.9 F)
1933	-38.3 C (-36.9 F)
1934	-33.3 C (-27.9 F)
1935	-40.6 C (-41.1 F)
1936	-45.0 C (-49.0 F)
1937	-40.6 C (-41.1 F)
1938	-38.9 C (-38.0 F)
1939	-41.7 C (-43.1 F)
1940	-37.2 C (-35.0 F)
1941	-38.9 C (-38.0 F)
1942	-35.6 C (-32.1 F)
1943	-43.9 C (-47.0 F)
1944	-37.8 C (-36.0 F)
1945	-33.9 C (-29.0 F)
1946	-36.7 C (-34.1 F)
1947	-40.0 C (-40.0 F)
1948	-37.2 C (-35.0 F)
1949	-41.1 C (-42.0 F)
1950	-43.3 C (-45.9 F)
1951	-40.0 C (-40.0 F)
1952	-33.3 C (-27.9 F)
1953	-35.6 C (-32.1 F)
1954	-41.1 C (-42.0 F)
1955	-34.4 C (-29.9 F)
1956	-37.2 C (-35.0 F)
1957	-34.4 C (-29.9 F)
1958	-33.9 C (-29.0 F)
1959	-35.0 C (-31.0 F)
1960	-35.0 C (-31.0 F)
1961	-37.8 C (-36.0 F)
1962	-38.9 C (-38.0 F)
1963	-33.9 C (-29.0 F)
1964	-34.4 C (-29.9 F)
1965	-38.3 C (-36.9 F)
1966	-38.3 C (-36.9 F)
1967	-36.1 C (-33.0 F)
1968	-36.7 C (-34.1 F)
1969	-43.9 C (-47.0 F)
1970	-41.1 C (-42.0 F)
1971	-37.8 C (-36.0 F)
1972	-44.4 C (-47.9 F)
1973	-35.6 C (-32.1 F)
1974	-38.9 C (-38.0 F)
1975	-41.1 C (-42.0 F)
1976	-36.1 C (-33.0 F)
1977	-35.6 C (-32.1 F)
1978	-36.7 C (-34.1 F)
1979	-38.0 C (-36.4 F)
1980	-37.0 C (-34.6 F)
1981	-36.0 C (-32.8 F)
1982	-40.0 C (-40.0 F)
1983	-43.0 C (-45.4 F)

Wettest day (Rx1day)

The wettest day of the year at Yellow Grass, 1911 to 1983. The record is 91.0 mm (3.6 in) in 1978, marked on the chart; the median year is 37.8 mm (1.5 in).

Wettest day (Rx1day) at Yellow Grass by year
Year	Wettest day (Rx1day)
1911	18.5 mm (0.7 in)
1912	35.8 mm (1.4 in)
1913	38.1 mm (1.5 in)
1914	50.8 mm (2.0 in)
1915	23.9 mm (0.9 in)
1916	36.8 mm (1.4 in)
1917	40.6 mm (1.6 in)
1918	33.0 mm (1.3 in)
1919	19.3 mm (0.8 in)
1920	26.9 mm (1.1 in)
1921	39.1 mm (1.5 in)
1922	38.1 mm (1.5 in)
1923	49.5 mm (1.9 in)
1924	23.4 mm (0.9 in)
1925	26.7 mm (1.1 in)
1926	63.5 mm (2.5 in)
1927	25.4 mm (1.0 in)
1928	53.3 mm (2.1 in)
1929	32.5 mm (1.3 in)
1930	26.9 mm (1.1 in)
1931	57.2 mm (2.3 in)
1932	32.0 mm (1.3 in)
1933	45.7 mm (1.8 in)
1934	38.4 mm (1.5 in)
1935	30.5 mm (1.2 in)
1936	43.7 mm (1.7 in)
1937	24.9 mm (1.0 in)
1938	37.3 mm (1.5 in)
1939	37.8 mm (1.5 in)
1940	39.1 mm (1.5 in)
1941	48.3 mm (1.9 in)
1942	33.5 mm (1.3 in)
1943	20.3 mm (0.8 in)
1944	40.6 mm (1.6 in)
1945	48.3 mm (1.9 in)
1946	86.9 mm (3.4 in)
1947	26.9 mm (1.1 in)
1948	29.0 mm (1.1 in)
1949	52.1 mm (2.1 in)
1950	59.9 mm (2.4 in)
1951	19.3 mm (0.8 in)
1952	48.3 mm (1.9 in)
1953	48.3 mm (1.9 in)
1954	47.0 mm (1.9 in)
1955	33.8 mm (1.3 in)
1956	36.1 mm (1.4 in)
1957	20.6 mm (0.8 in)
1958	17.8 mm (0.7 in)
1959	46.5 mm (1.8 in)
1960	28.4 mm (1.1 in)
1961	28.2 mm (1.1 in)
1962	43.2 mm (1.7 in)
1963	54.6 mm (2.1 in)
1964	31.2 mm (1.2 in)
1965	51.6 mm (2.0 in)
1966	24.9 mm (1.0 in)
1967	22.9 mm (0.9 in)
1968	35.8 mm (1.4 in)
1969	23.1 mm (0.9 in)
1970	50.5 mm (2.0 in)
1971	42.9 mm (1.7 in)
1972	41.9 mm (1.6 in)
1973	40.9 mm (1.6 in)
1974	79.5 mm (3.1 in)
1975	52.6 mm (2.1 in)
1976	39.1 mm (1.5 in)
1977	30.0 mm (1.2 in)
1978	91.0 mm (3.6 in)
1979	35.6 mm (1.4 in)
1980	22.6 mm (0.9 in)
1981	57.6 mm (2.3 in)
1982	60.0 mm (2.4 in)
1983	27.0 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Yellow Grass, 1911 to 1983. The record is 117.1 mm (4.6 in) in 1946, marked on the chart; the median year is 52.6 mm (2.1 in).

Wettest five days (Rx5day) at Yellow Grass by year
Year	Wettest five days (Rx5day)
1911	21.1 mm (0.8 in)
1912	48.0 mm (1.9 in)
1913	47.0 mm (1.9 in)
1914	58.9 mm (2.3 in)
1915	37.6 mm (1.5 in)
1916	57.2 mm (2.3 in)
1917	49.7 mm (2.0 in)
1918	65.3 mm (2.6 in)
1919	37.6 mm (1.5 in)
1920	30.9 mm (1.2 in)
1921	72.5 mm (2.9 in)
1922	67.3 mm (2.6 in)
1923	86.9 mm (3.4 in)
1924	38.4 mm (1.5 in)
1925	44.5 mm (1.8 in)
1926	101.1 mm (4.0 in)
1927	72.1 mm (2.8 in)
1928	90.6 mm (3.6 in)
1929	48.0 mm (1.9 in)
1930	41.6 mm (1.6 in)
1931	71.2 mm (2.8 in)
1932	50.5 mm (2.0 in)
1933	94.2 mm (3.7 in)
1934	40.2 mm (1.6 in)
1935	49.8 mm (2.0 in)
1936	47.5 mm (1.9 in)
1937	28.9 mm (1.1 in)
1938	69.1 mm (2.7 in)
1939	49.8 mm (2.0 in)
1940	51.2 mm (2.0 in)
1941	71.6 mm (2.8 in)
1942	56.6 mm (2.2 in)
1943	35.6 mm (1.4 in)
1944	91.7 mm (3.6 in)
1945	50.8 mm (2.0 in)
1946	117.1 mm (4.6 in)
1947	48.3 mm (1.9 in)
1948	35.1 mm (1.4 in)
1949	62.3 mm (2.5 in)
1950	69.8 mm (2.7 in)
1951	54.9 mm (2.2 in)
1952	64.6 mm (2.5 in)
1953	79.1 mm (3.1 in)
1954	55.7 mm (2.2 in)
1955	45.7 mm (1.8 in)
1956	52.6 mm (2.1 in)
1957	31.0 mm (1.2 in)
1958	23.9 mm (0.9 in)
1959	56.2 mm (2.2 in)
1960	64.0 mm (2.5 in)
1961	32.3 mm (1.3 in)
1962	51.9 mm (2.0 in)
1963	91.4 mm (3.6 in)
1964	43.7 mm (1.7 in)
1965	77.2 mm (3.0 in)
1966	48.9 mm (1.9 in)
1967	38.9 mm (1.5 in)
1968	70.7 mm (2.8 in)
1969	34.5 mm (1.4 in)
1970	62.7 mm (2.5 in)
1971	76.8 mm (3.0 in)
1972	48.2 mm (1.9 in)
1973	63.8 mm (2.5 in)
1974	85.6 mm (3.4 in)
1975	96.8 mm (3.8 in)
1976	85.1 mm (3.4 in)
1977	51.6 mm (2.0 in)
1978	114.5 mm (4.5 in)
1979	45.4 mm (1.8 in)
1980	34.2 mm (1.3 in)
1981	78.6 mm (3.1 in)
1982	75.2 mm (3.0 in)
1983	41.6 mm (1.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Yellow Grass, 1911 to 1983. The record is 69 days in 1968, marked on the chart; the median year is 31 days.

Longest dry spell (CDD) at Yellow Grass by year
Year	Longest dry spell (CDD)
1911	31 days
1912	31 days
1913	33 days
1914	47 days
1915	39 days
1916	22 days
1917	35 days
1918	32 days
1919	36 days
1920	28 days
1921	33 days
1922	27 days
1923	49 days
1924	29 days
1925	44 days
1926	22 days
1927	26 days
1928	39 days
1929	26 days
1930	47 days
1931	31 days
1932	28 days
1933	28 days
1934	47 days
1935	31 days
1936	31 days
1937	26 days
1938	34 days
1939	28 days
1940	24 days
1941	33 days
1942	22 days
1943	33 days
1944	29 days
1945	30 days
1946	19 days
1947	33 days
1948	37 days
1949	31 days
1950	19 days
1951	33 days
1952	44 days
1953	25 days
1954	29 days
1955	26 days
1956	16 days
1957	31 days
1958	36 days
1959	29 days
1960	63 days
1961	33 days
1962	34 days
1963	22 days
1964	49 days
1965	49 days
1966	31 days
1967	32 days
1968	69 days
1969	24 days
1970	20 days
1971	18 days
1972	27 days
1973	28 days
1974	24 days
1975	34 days
1976	30 days
1977	39 days
1978	23 days
1979	22 days
1980	50 days
1981	41 days
1982	30 days
1983	21 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.

Frost Dates and Growing Season

53 years with a frost

Across 53 years with a frost, the median last spring frost at Yellow Grass falls on 27 May and the median first autumn frost on 10 September, which leaves a median of 104 days between them.

Fitted over all years, the growing season changes by +1.4 days per decade at this station.

Frost dates and growing season at Yellow Grass
Measure	Median, all years	Earliest period	Recent period (1948 to 1983)	Recent against earliest	Fitted trend
Last spring frost	27 May	n/a	28 May	n/a	+0.2 days per decade
First autumn frost	10 September	n/a	11 September	n/a	+1.6 days per decade
Growing days	104 days	n/a	107 days	n/a	+1.4 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

61 years, 1916 to 1983

A day with at least 36.7 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 90.8 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Yellow Grass: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	36.7 mm (1.4 in)
5 years	50.4 mm (2.0 in)
10 years	59.7 mm (2.4 in)
25 years	71.9 mm (2.8 in)
50 years	81.2 mm (3.2 in)
100 years	90.8 mm (3.6 in)	Longer than the 61 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, 61 years of values from 1916 to 1983.

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: 91.0 mm (3.6 in) in 1978; 86.9 mm (3.4 in) in 1946; 79.5 mm (3.1 in) in 1974.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Yellow Grass standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Yellow Grass 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).