Robeline Weather Records (USC00167905)

Record envelope, standing records and threshold days for Robeline (USC00167905), Louisiana, United States, with 62 years of record.

Key Facts for Robeline

Robeline (USC00167905) is a weather station in Louisiana, United States at 31.68 latitude and -93.30 longitude, 46 m (151 ft) above sea level.
The station reports from 1896 to 1957, 62 years of record.
1,464 records set at Robeline still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Robeline set a daily record precipitation of 53.3 mm (2.1 in) on 6 November 1957.

About the Station

Location: Louisiana, United States, 31.68 latitude, -93.30 longitude.
Elevation: 46 m (151 ft).
Period of record: 1896 to 1957, 62 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 Robeline. 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 Robeline, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.1 C (88.0 F)	-17.2 C (1.0 F)	n/a	n/a
Feb	32.2 C (90.0 F)	-21.1 C (-6.0 F)	n/a	n/a
Mar	33.3 C (91.9 F)	-7.8 C (18.0 F)	n/a	n/a
Apr	33.3 C (91.9 F)	-6.7 C (19.9 F)	n/a	n/a
May	37.2 C (99.0 F)	-6.7 C (19.9 F)	n/a	n/a
Jun	40.0 C (104.0 F)	6.7 C (44.1 F)	n/a	n/a
Jul	42.2 C (108.0 F)	10.0 C (50.0 F)	n/a	n/a
Aug	43.3 C (109.9 F)	9.4 C (48.9 F)	n/a	n/a
Sep	40.6 C (105.1 F)	1.1 C (34.0 F)	n/a	n/a
Oct	36.7 C (98.1 F)	-4.4 C (24.1 F)	n/a	n/a
Nov	35.0 C (95.0 F)	-9.4 C (15.1 F)	n/a	n/a
Dec	31.1 C (88.0 F)	-17.2 C (1.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Robeline still stand. 1911 holds the most, with 57.

Standing records at Robeline by the year they were set
Year set	Standing records
1896	27
1897	36
1898	38
1899	24
1900	17
1901	38
1902	27
1903	23
1904	27
1905	31
1906	15
1907	30
1908	39
1909	35
1910	32
1911	57
1912	29
1913	26
1914	25
1915	47
1916	40
1917	41
1918	13
1919	13
1920	12
1921	23
1922	20
1923	19
1924	37
1925	31
1926	25
1927	20
1928	14
1929	23
1930	26
1931	29
1932	37
1933	29
1934	12
1935	15
1936	20
1937	23
1938	18
1939	14
1940	29
1941	13
1942	17
1943	34
1944	18
1945	14
1946	10
1947	21
1948	31
1949	15
1950	24
1951	37
1952	16
1953	8

All-Time Record Progression

3 new records

3 all-time records were set at Robeline between 1 May 1950 and 18 May 1953. Each dot is a new record.

When Robeline set new all-time records
Date	Kind	Detail
1950-05-01	Record daily precipitation	Record daily precipitation 184.2 mm (7.3 in)
1953-04-29	Record daily precipitation	Record daily precipitation 205.5 mm (8.1 in)
1953-05-18	Record daily precipitation	Record daily precipitation 223.0 mm (8.8 in)

Wettest Day of Each Month

May: 223.0 mm (8.8 in)

The wettest day on record for each calendar month at Robeline. The most was 223.0 mm (8.8 in) on 18 May 1953.

Record daily precipitation for each month at Robeline
Month	Record daily precipitation (mm)	Date
Jan	124.5 mm (4.9 in)	12 January 1932
Feb	114.3 mm (4.5 in)	9 February 1946
Mar	101.6 mm (4.0 in)	14 March 1913
Apr	205.5 mm (8.1 in)	29 April 1953
May	223.0 mm (8.8 in)	18 May 1953
Jun	129.5 mm (5.1 in)	2 June 1950
Jul	133.4 mm (5.3 in)	25 July 1933
Aug	116.1 mm (4.6 in)	9 August 1940
Sep	152.4 mm (6.0 in)	15 September 1901
Oct	154.9 mm (6.1 in)	31 October 1941
Nov	128.8 mm (5.1 in)	5 November 1925
Dec	134.6 mm (5.3 in)	7 December 1935

Period of Record Coverage

1896 to 1953

58 years of record at Robeline, 1896 to 1953. 13 years have data for under 90 percent of days and are left out of rankings: 1896, 1899, 1900, 1903, 1906, 1907, 1916, 1918 and others.

Days with data per year at Robeline
Year	Days with data	Share of year	Complete
1896	208	57%	No
1897	351	96%	Yes
1898	365	100%	Yes
1899	287	79%	No
1900	292	80%	No
1901	336	92%	Yes
1902	345	95%	Yes
1903	297	81%	No
1904	353	96%	Yes
1905	356	98%	Yes
1906	320	88%	No
1907	312	85%	No
1908	363	99%	Yes
1909	363	99%	Yes
1910	362	99%	Yes
1911	365	100%	Yes
1912	366	100%	Yes
1913	361	99%	Yes
1914	332	91%	Yes
1915	338	93%	Yes
1916	321	88%	No
1917	331	91%	Yes
1918	267	73%	No
1919	329	90%	Yes
1920	346	95%	Yes
1921	271	74%	No
1922	263	72%	No
1923	322	88%	No
1924	338	92%	Yes
1925	317	87%	No
1926	365	100%	Yes
1927	342	94%	Yes
1928	353	96%	Yes
1929	359	98%	Yes
1930	363	99%	Yes
1931	359	98%	Yes
1932	362	99%	Yes
1933	363	99%	Yes
1934	362	99%	Yes
1935	361	99%	Yes
1936	366	100%	Yes
1937	364	100%	Yes
1938	365	100%	Yes
1939	364	100%	Yes
1940	361	99%	Yes
1941	359	98%	Yes
1942	364	100%	Yes
1943	362	99%	Yes
1944	363	99%	Yes
1945	360	99%	Yes
1946	363	99%	Yes
1947	332	91%	Yes
1948	358	98%	Yes
1949	359	98%	Yes
1950	333	91%	Yes
1951	364	100%	Yes
1952	365	100%	Yes
1953	160	44%	No

Latest Records

Latest records at Robeline
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 November 1957	Robeline, US	daily rain	53.3 mm (2.1 in)	5.0 mm (0.20 in)	0 years	8 of 100 (Routine)
22 October 1957	Robeline, US	daily rain	41.9 mm (1.6 in)	21.6 mm (0.9 in)	56 years	33 of 100 (Routine)
23 September 1957	Robeline, US	daily rain	50.8 mm (2.0 in)	30.5 mm (1.2 in)	47 years	36 of 100 (Notable)
16 September 1957	Robeline, US	daily rain	9.9 mm (0.39 in)	2.5 mm (0.10 in)	16 years	11 of 100 (Routine)
25 January 1957	Robeline, US	daily rain	48.3 mm (1.9 in)	17.1 mm (0.7 in)	25 years	22 of 100 (Routine)
6 November 1956	Robeline, US	daily rain	48.3 mm (1.9 in)	42.7 mm (1.7 in)	51 years	42 of 100 (Notable)
27 June 1956	Robeline, US	daily rain	92.7 mm (3.6 in)	39.4 mm (1.6 in)	10 years	32 of 100 (Routine)
13 June 1956	Robeline, US	daily rain	20.3 mm (0.8 in)	9.1 mm (0.36 in)	56 years	20 of 100 (Routine)
4 February 1956	Robeline, US	daily rain	45.7 mm (1.8 in)	2.5 mm (0.10 in)	16 years	11 of 100 (Routine)
25 November 1955	Robeline, US	daily rain	77.5 mm (3.1 in)	32.3 mm (1.3 in)	22 years	28 of 100 (Routine)
25 August 1955	Robeline, US	daily rain	53.3 mm (2.1 in)	22.3 mm (0.9 in)	45 years	32 of 100 (Routine)
4 August 1955	Robeline, US	daily rain	71.1 mm (2.8 in)	34.3 mm (1.4 in)	13 years	30 of 100 (Routine)
3 August 1955	Robeline, US	daily rain	53.3 mm (2.1 in)	26.1 mm (1.0 in)	17 years	26 of 100 (Routine)
2 August 1955	Robeline, US	daily rain	57.2 mm (2.3 in)	19.1 mm (0.8 in)	52 years	32 of 100 (Routine)
28 July 1955	Robeline, US	daily rain	49.8 mm (2.0 in)	18.0 mm (0.7 in)	4 years	17 of 100 (Routine)
15 July 1955	Robeline, US	daily rain (Tie)	24.1 mm (0.9 in)	tie	26 years	3 of 100 (Routine)
30 June 1955	Robeline, US	daily rain	61.0 mm (2.4 in)	37.9 mm (1.5 in)	16 years	32 of 100 (Routine)
24 June 1955	Robeline, US	daily rain	31.8 mm (1.3 in)	6.9 mm (0.27 in)	16 years	15 of 100 (Routine)
24 May 1955	Robeline, US	daily rain	24.6 mm (1.0 in)	11.9 mm (0.5 in)	32 years	19 of 100 (Routine)
17 May 1955	Robeline, US	daily rain	50.8 mm (2.0 in)	0.5 mm (0.02 in)	16 years	11 of 100 (Routine)

Climate Trend

33 complete years, 1898 to 1952

One stripe for each of 33 complete years at Robeline, 1898 to 1952. Blue stripes are years cooler than the station's own mean of 18.8 C (65.8 F); red stripes are warmer. The coolest year was 1898, at 17.5 C (63.4 F), and the warmest was 1933, at 20.1 C (68.3 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Robeline as warming stripes, 1898 to 1952
Year	Annual mean temperature	Difference from the station mean
1898	17.5 C	-1.32 C
1902	18.2 C	-0.57 C
1904	18.1 C	-0.67 C
1905	17.5 C	-1.31 C
1908	18.8 C	-0.03 C
1909	19.3 C	+0.47 C
1910	18.3 C	-0.51 C
1911	19.5 C	+0.70 C
1912	17.6 C	-1.23 C
1913	18.2 C	-0.63 C
1920	18.5 C	-0.29 C
1926	18.4 C	-0.43 C
1928	18.3 C	-0.47 C
1929	18.1 C	-0.70 C
1930	18.6 C	-0.24 C
1931	18.8 C	+0.05 C
1932	19.2 C	+0.37 C
1933	20.1 C	+1.35 C
1934	19.5 C	+0.75 C
1935	19.3 C	+0.55 C
1936	18.8 C	+0.04 C
1937	18.9 C	+0.11 C
1938	19.6 C	+0.78 C
1939	19.6 C	+0.77 C
1940	17.7 C	-1.06 C
1941	19.0 C	+0.22 C
1942	18.5 C	-0.26 C
1944	19.4 C	+0.57 C
1945	19.3 C	+0.49 C
1946	19.5 C	+0.66 C
1948	18.9 C	+0.14 C
1951	19.9 C	+1.09 C
1952	19.4 C	+0.65 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.4) per decade over 1898 to 1952. In Fahrenheit: 0.5 F (0.2 to 0.7) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Robeline
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.1 to 0.4) per decade	0.5 F (0.2 to 0.7) per decade	1898 to 1952	33	Rise
Mean daily maximum	0.14 C (-0.04 to 0.33) per decade	0.3 F (-0.1 to 0.6) per decade	1898 to 1952	33	Not clearly different from zero
Mean daily minimum	0.4 C (0.3 to 0.5) per decade	0.7 F (0.5 to 1.0) per decade	1898 to 1952	33	Rise

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

1896 to 1957

Yearly extremes at Robeline: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	1909	38.9 C (102.0 F)	58
Coldest night (TNn)	-21.1 C (-6.0 F)	1899	-9.4 C (15.1 F)	58
Wettest day (Rx1day)	223.0 mm (8.8 in)	1953	91.4 mm (3.6 in)	62
Wettest five days (Rx5day)	431.3 mm (17.0 in)	1953	138.3 mm (5.4 in)	62
Longest dry spell (CDD)	58 days	1924	29 days	62

Hottest day (TXx)

The hottest day of the year at Robeline, 1896 to 1957. The record is 43.3 C (109.9 F) in 1909, marked on the chart; the median year is 38.9 C (102.0 F).

Hottest day (TXx) at Robeline by year
Year	Hottest day (TXx)
1896	40.6 C (105.1 F)
1897	40.6 C (105.1 F)
1898	37.2 C (99.0 F)
1899	38.9 C (102.0 F)
1900	36.7 C (98.1 F)
1901	40.0 C (104.0 F)
1902	37.8 C (100.0 F)
1903	36.7 C (98.1 F)
1904	37.2 C (99.0 F)
1905	36.7 C (98.1 F)
1906	36.7 C (98.1 F)
1907	39.4 C (102.9 F)
1908	37.2 C (99.0 F)
1909	43.3 C (109.9 F)
1910	37.8 C (100.0 F)
1911	40.0 C (104.0 F)
1912	38.9 C (102.0 F)
1913	39.4 C (102.9 F)
1914	39.4 C (102.9 F)
1915	42.2 C (108.0 F)
1916	38.3 C (100.9 F)
1917	40.6 C (105.1 F)
1918	40.0 C (104.0 F)
1919	38.3 C (100.9 F)
1920	36.1 C (97.0 F)
1921	38.3 C (100.9 F)
1922	38.3 C (100.9 F)
1923	37.8 C (100.0 F)
1924	40.0 C (104.0 F)
1925	40.0 C (104.0 F)
1926	37.2 C (99.0 F)
1927	37.8 C (100.0 F)
1928	36.7 C (98.1 F)
1929	38.3 C (100.9 F)
1930	40.6 C (105.1 F)
1931	38.9 C (102.0 F)
1932	40.6 C (105.1 F)
1933	39.4 C (102.9 F)
1934	39.4 C (102.9 F)
1935	40.6 C (105.1 F)
1936	41.1 C (106.0 F)
1937	39.4 C (102.9 F)
1938	37.2 C (99.0 F)
1939	39.4 C (102.9 F)
1940	35.6 C (96.1 F)
1941	36.7 C (98.1 F)
1942	37.8 C (100.0 F)
1943	41.7 C (107.1 F)
1944	38.9 C (102.0 F)
1945	36.7 C (98.1 F)
1946	37.2 C (99.0 F)
1947	41.7 C (107.1 F)
1948	41.1 C (106.0 F)
1949	37.8 C (100.0 F)
1950	39.4 C (102.9 F)
1951	41.7 C (107.1 F)
1952	38.3 C (100.9 F)
1953	36.1 C (97.0 F)
1954	n/a
1955	n/a
1956	n/a
1957	n/a

Coldest night (TNn)

The coldest night of the year at Robeline, 1896 to 1957. The record is -21.1 C (-6.0 F) in 1899, marked on the chart; the median year is -9.4 C (15.1 F).

Coldest night (TNn) at Robeline by year
Year	Coldest night (TNn)
1896	-7.8 C (18.0 F)
1897	-12.2 C (10.0 F)
1898	-11.1 C (12.0 F)
1899	-21.1 C (-6.0 F)
1900	-6.7 C (19.9 F)
1901	-10.0 C (14.0 F)
1902	-12.2 C (10.0 F)
1903	-6.7 C (19.9 F)
1904	-9.4 C (15.1 F)
1905	-11.7 C (10.9 F)
1906	-10.0 C (14.0 F)
1907	-7.2 C (19.0 F)
1908	-8.3 C (17.1 F)
1909	-8.3 C (17.1 F)
1910	-12.2 C (10.0 F)
1911	-10.0 C (14.0 F)
1912	-10.0 C (14.0 F)
1913	-11.7 C (10.9 F)
1914	-9.4 C (15.1 F)
1915	-7.2 C (19.0 F)
1916	-8.9 C (16.0 F)
1917	-11.1 C (12.0 F)
1918	-16.7 C (1.9 F)
1919	-11.1 C (12.0 F)
1920	-6.7 C (19.9 F)
1921	-3.9 C (25.0 F)
1922	-5.0 C (23.0 F)
1923	-7.2 C (19.0 F)
1924	-11.7 C (10.9 F)
1925	-11.7 C (10.9 F)
1926	-9.4 C (15.1 F)
1927	-8.9 C (16.0 F)
1928	-12.2 C (10.0 F)
1929	-17.2 C (1.0 F)
1930	-17.2 C (1.0 F)
1931	-4.4 C (24.1 F)
1932	-8.3 C (17.1 F)
1933	-12.2 C (10.0 F)
1934	-8.3 C (17.1 F)
1935	-10.0 C (14.0 F)
1936	-8.9 C (16.0 F)
1937	-6.7 C (19.9 F)
1938	-8.3 C (17.1 F)
1939	-5.6 C (21.9 F)
1940	-13.9 C (7.0 F)
1941	-6.7 C (19.9 F)
1942	-8.9 C (16.0 F)
1943	-10.6 C (12.9 F)
1944	-6.7 C (19.9 F)
1945	-9.4 C (15.1 F)
1946	-5.6 C (21.9 F)
1947	-7.8 C (18.0 F)
1948	-12.2 C (10.0 F)
1949	-12.2 C (10.0 F)
1950	-7.8 C (18.0 F)
1951	-15.6 C (3.9 F)
1952	-6.7 C (19.9 F)
1953	-1.1 C (30.0 F)
1954	n/a
1955	n/a
1956	n/a
1957	n/a

Wettest day (Rx1day)

The wettest day of the year at Robeline, 1896 to 1957. The record is 223.0 mm (8.8 in) in 1953, marked on the chart; the median year is 91.4 mm (3.6 in).

Wettest day (Rx1day) at Robeline by year
Year	Wettest day (Rx1day)
1896	63.5 mm (2.5 in)
1897	91.4 mm (3.6 in)
1898	63.5 mm (2.5 in)
1899	61.0 mm (2.4 in)
1900	101.6 mm (4.0 in)
1901	152.4 mm (6.0 in)
1902	50.8 mm (2.0 in)
1903	101.6 mm (4.0 in)
1904	78.7 mm (3.1 in)
1905	96.5 mm (3.8 in)
1906	95.3 mm (3.8 in)
1907	63.8 mm (2.5 in)
1908	95.5 mm (3.8 in)
1909	160.5 mm (6.3 in)
1910	146.1 mm (5.8 in)
1911	104.1 mm (4.1 in)
1912	50.8 mm (2.0 in)
1913	156.2 mm (6.1 in)
1914	61.5 mm (2.4 in)
1915	101.6 mm (4.0 in)
1916	121.9 mm (4.8 in)
1917	80.0 mm (3.1 in)
1918	43.2 mm (1.7 in)
1919	50.8 mm (2.0 in)
1920	57.2 mm (2.3 in)
1921	63.5 mm (2.5 in)
1922	53.3 mm (2.1 in)
1923	75.4 mm (3.0 in)
1924	80.0 mm (3.1 in)
1925	128.8 mm (5.1 in)
1926	121.9 mm (4.8 in)
1927	101.6 mm (4.0 in)
1928	107.2 mm (4.2 in)
1929	61.7 mm (2.4 in)
1930	72.4 mm (2.9 in)
1931	62.5 mm (2.5 in)
1932	124.5 mm (4.9 in)
1933	133.4 mm (5.3 in)
1934	91.4 mm (3.6 in)
1935	134.6 mm (5.3 in)
1936	90.2 mm (3.6 in)
1937	62.7 mm (2.5 in)
1938	86.6 mm (3.4 in)
1939	112.0 mm (4.4 in)
1940	116.1 mm (4.6 in)
1941	154.9 mm (6.1 in)
1942	57.7 mm (2.3 in)
1943	54.4 mm (2.1 in)
1944	97.8 mm (3.9 in)
1945	138.9 mm (5.5 in)
1946	114.3 mm (4.5 in)
1947	101.6 mm (4.0 in)
1948	101.6 mm (4.0 in)
1949	77.5 mm (3.1 in)
1950	184.2 mm (7.3 in)
1951	77.5 mm (3.1 in)
1952	63.5 mm (2.5 in)
1953	223.0 mm (8.8 in)
1954	59.7 mm (2.4 in)
1955	77.5 mm (3.1 in)
1956	92.7 mm (3.6 in)
1957	54.6 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Robeline, 1896 to 1957. The record is 431.3 mm (17.0 in) in 1953, marked on the chart; the median year is 138.3 mm (5.4 in).

Wettest five days (Rx5day) at Robeline by year
Year	Wettest five days (Rx5day)
1896	112.5 mm (4.4 in)
1897	194.5 mm (7.7 in)
1898	111.8 mm (4.4 in)
1899	91.0 mm (3.6 in)
1900	163.9 mm (6.5 in)
1901	171.5 mm (6.8 in)
1902	119.9 mm (4.7 in)
1903	101.6 mm (4.0 in)
1904	94.0 mm (3.7 in)
1905	151.1 mm (5.9 in)
1906	82.5 mm (3.2 in)
1907	82.5 mm (3.2 in)
1908	147.6 mm (5.8 in)
1909	230.8 mm (9.1 in)
1910	271.9 mm (10.7 in)
1911	175.2 mm (6.9 in)
1912	98.5 mm (3.9 in)
1913	227.4 mm (9.0 in)
1914	116.9 mm (4.6 in)
1915	247.6 mm (9.7 in)
1916	200.6 mm (7.9 in)
1917	93.2 mm (3.7 in)
1918	55.9 mm (2.2 in)
1919	86.3 mm (3.4 in)
1920	113.1 mm (4.5 in)
1921	133.3 mm (5.2 in)
1922	116.8 mm (4.6 in)
1923	134.6 mm (5.3 in)
1924	175.0 mm (6.9 in)
1925	183.9 mm (7.2 in)
1926	203.2 mm (8.0 in)
1927	106.5 mm (4.2 in)
1928	172.5 mm (6.8 in)
1929	120.6 mm (4.7 in)
1930	97.9 mm (3.9 in)
1931	109.3 mm (4.3 in)
1932	162.0 mm (6.4 in)
1933	279.2 mm (11.0 in)
1934	131.5 mm (5.2 in)
1935	141.4 mm (5.6 in)
1936	140.7 mm (5.5 in)
1937	93.9 mm (3.7 in)
1938	120.9 mm (4.8 in)
1939	210.3 mm (8.3 in)
1940	172.7 mm (6.8 in)
1941	157.4 mm (6.2 in)
1942	117.1 mm (4.6 in)
1943	63.8 mm (2.5 in)
1944	278.5 mm (11.0 in)
1945	190.7 mm (7.5 in)
1946	160.0 mm (6.3 in)
1947	143.6 mm (5.7 in)
1948	141.0 mm (5.6 in)
1949	147.3 mm (5.8 in)
1950	246.5 mm (9.7 in)
1951	119.4 mm (4.7 in)
1952	99.5 mm (3.9 in)
1953	431.3 mm (17.0 in)
1954	114.3 mm (4.5 in)
1955	200.7 mm (7.9 in)
1956	135.9 mm (5.4 in)
1957	107.9 mm (4.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Robeline, 1896 to 1957. The record is 58 days in 1924, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at Robeline by year
Year	Longest dry spell (CDD)
1896	28 days
1897	26 days
1898	19 days
1899	30 days
1900	17 days
1901	28 days
1902	31 days
1903	24 days
1904	24 days
1905	31 days
1906	33 days
1907	41 days
1908	36 days
1909	23 days
1910	33 days
1911	28 days
1912	25 days
1913	31 days
1914	26 days
1915	36 days
1916	40 days
1917	33 days
1918	30 days
1919	15 days
1920	21 days
1921	48 days
1922	37 days
1923	24 days
1924	58 days
1925	23 days
1926	23 days
1927	24 days
1928	18 days
1929	40 days
1930	23 days
1931	30 days
1932	24 days
1933	47 days
1934	22 days
1935	29 days
1936	33 days
1937	22 days
1938	16 days
1939	29 days
1940	21 days
1941	24 days
1942	36 days
1943	25 days
1944	34 days
1945	14 days
1946	18 days
1947	35 days
1948	43 days
1949	26 days
1950	31 days
1951	34 days
1952	52 days
1953	47 days
1954	37 days
1955	28 days
1956	29 days
1957	18 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

33 years with a frost

Across 33 years with a frost, the median last spring frost at Robeline falls on 29 March and the median first autumn frost on 31 October, which leaves a median of 214 days between them.

Fitted over all years, the growing season changes by +3.7 days per decade at this station.

Frost dates and growing season at Robeline
Measure	Median, all years	Earliest period	Recent period (1905 to 1952)	Recent against earliest	Fitted trend
Last spring frost	29 March	n/a	29 March	n/a	-2.2 days per decade
First autumn frost	31 October	n/a	31 October	n/a	+1.5 days per decade
Growing days	214 days	n/a	216 days	n/a	+3.7 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

54 years, 1897 to 1956

A day with at least 90.7 mm (3.6 in) of rain is expected about once in 2 years. A day with at least 224.4 mm (8.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Robeline: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	90.7 mm (3.6 in)
5 years	124.7 mm (4.9 in)
10 years	147.9 mm (5.8 in)
25 years	178.1 mm (7.0 in)
50 years	201.0 mm (7.9 in)
100 years	224.4 mm (8.8 in)	Longer than the 54 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, 54 years of values from 1897 to 1956.

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: 223.0 mm (8.8 in) in 1953; 184.2 mm (7.3 in) in 1950; 160.5 mm (6.3 in) in 1909.

Download the Data

Data for Robeline standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Robeline 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 2026-10-17 (17 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).