Grenola 1 N Weather Records (USC00143248)

Record envelope, standing records and threshold days for Grenola 1 N (USC00143248), Kansas, United States, with 134 years of record.

Key Facts for Grenola 1 N

Grenola 1 N (USC00143248) is a weather station in Kansas, United States at 37.36 latitude and -96.45 longitude, 353 m (1,159 ft) above sea level.
The station reports from 1893 to 2026, 134 years of record.
1,464 records set at Grenola 1 N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Grenola 1 N set a daily record precipitation of 89.4 mm (3.5 in) on 26 June 2026.

About the Station

Location: Kansas, United States, 37.36 latitude, -96.45 longitude.
Elevation: 353 m (1,159 ft).
Period of record: 1893 to 2026, 134 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

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 Grenola 1 N. 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 Grenola 1 N, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	23.3 C (73.9 F)	-26.7 C (-16.1 F)	n/a	n/a
Feb	28.3 C (82.9 F)	-30.6 C (-23.1 F)	n/a	n/a
Mar	34.4 C (93.9 F)	-18.3 C (-0.9 F)	n/a	n/a
Apr	36.7 C (98.1 F)	-8.9 C (16.0 F)	n/a	n/a
May	37.2 C (99.0 F)	-4.4 C (24.1 F)	n/a	n/a
Jun	42.8 C (109.0 F)	3.9 C (39.0 F)	n/a	n/a
Jul	43.3 C (109.9 F)	8.3 C (46.9 F)	n/a	n/a
Aug	43.9 C (111.0 F)	6.1 C (43.0 F)	n/a	n/a
Sep	43.3 C (109.9 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	35.6 C (96.1 F)	-11.1 C (12.0 F)	n/a	n/a
Nov	30.0 C (86.0 F)	-13.9 C (7.0 F)	n/a	n/a
Dec	26.1 C (79.0 F)	-22.2 C (-8.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Grenola 1 N still stand. 1911 holds the most, with 75.

Standing records at Grenola 1 N by the year they were set
Year set	Standing records
1893	52
1894	63
1895	64
1896	52
1897	38
1898	38
1899	55
1900	26
1901	39
1902	46
1903	44
1904	28
1905	48
1906	26
1907	39
1908	24
1909	36
1910	42
1911	75
1912	41
1913	62
1914	31
1915	49
1916	37
1917	55
1918	65
1919	27
1920	39
1921	32
1922	35
1923	24
1924	39
1925	42
1926	24
1927	27

All-Time Record Progression

6 new records

6 all-time records were set at Grenola 1 N between 23 June 1956 and 20 December 1987. Each dot is a new record.

When Grenola 1 N set new all-time records
Date	Kind	Detail
1956-06-23	Record daily precipitation	Record daily precipitation 144.0 mm (5.7 in)
1961-05-06	Record daily precipitation	Record daily precipitation 160.3 mm (6.3 in)
1976-07-03	Record daily precipitation	Record daily precipitation 184.4 mm (7.3 in)
1977-06-22	Record daily precipitation	Record daily precipitation 277.6 mm (10.9 in)
1980-02-08	Record snow depth	Record snow depth 27.9 cm (11.0 in)
1987-12-20	Record snow depth	Record snow depth 55.9 cm (22.0 in)

Wettest Day of Each Month

Jun: 277.6 mm (10.9 in)

The wettest day on record for each calendar month at Grenola 1 N. The most was 277.6 mm (10.9 in) on 22 June 1977.

Record daily precipitation for each month at Grenola 1 N
Month	Record daily precipitation (mm)	Date
Jan	67.1 mm (2.6 in)	31 January 1975
Feb	85.1 mm (3.4 in)	21 February 1997
Mar	75.2 mm (3.0 in)	29 March 2017
Apr	143.0 mm (5.6 in)	28 April 2024
May	197.1 mm (7.8 in)	21 May 2019
Jun	277.6 mm (10.9 in)	22 June 1977
Jul	186.9 mm (7.4 in)	5 July 2010
Aug	112.8 mm (4.4 in)	13 August 1987
Sep	139.2 mm (5.5 in)	13 September 1961
Oct	192.8 mm (7.6 in)	3 October 1986
Nov	132.8 mm (5.2 in)	7 November 1918
Dec	56.4 mm (2.2 in)	20 December 1991

Period of Record Coverage

1893 to 1927

35 years of record at Grenola 1 N, 1893 to 1927. 2 years have data for under 90 percent of days and are left out of rankings: 1895, 1927.

Days with data per year at Grenola 1 N
Year	Days with data	Share of year	Complete
1893	330	90%	Yes
1894	331	91%	Yes
1895	322	88%	No
1896	332	91%	Yes
1897	347	95%	Yes
1898	344	94%	Yes
1899	364	100%	Yes
1900	363	99%	Yes
1901	365	100%	Yes
1902	362	99%	Yes
1903	333	91%	Yes
1904	352	96%	Yes
1905	363	99%	Yes
1906	363	99%	Yes
1907	363	99%	Yes
1908	361	99%	Yes
1909	357	98%	Yes
1910	365	100%	Yes
1911	365	100%	Yes
1912	365	100%	Yes
1913	365	100%	Yes
1914	364	100%	Yes
1915	365	100%	Yes
1916	362	99%	Yes
1917	361	99%	Yes
1918	365	100%	Yes
1919	365	100%	Yes
1920	365	100%	Yes
1921	364	100%	Yes
1922	365	100%	Yes
1923	364	100%	Yes
1924	364	99%	Yes
1925	352	96%	Yes
1926	361	99%	Yes
1927	270	74%	No

Latest Records

Latest records at Grenola 1 N
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 June 2026	Grenola 1 N, US	daily rain	89.4 mm (3.5 in)	30.2 mm (1.2 in)	23 years	31 of 100 (Routine)
21 June 2026	Grenola 1 N, US	daily rain	48.8 mm (1.9 in)	2.3 mm (0.09 in)	80 years	35 of 100 (Notable)
2 April 2026	Grenola 1 N, US	daily rain	55.6 mm (2.2 in)	25.1 mm (1.0 in)	60 years	45 of 100 (Notable)
26 January 2026	Grenola 1 N, US	daily snow depth	10.2 cm (4.0 in)	2.6 cm (1.0 in)	70 years	37 of 100 (Notable)
25 January 2026	Grenola 1 N, US	daily snow depth	15.2 cm (6.0 in)	7.6 cm (3.0 in)	70 years	50 of 100 (Notable)
25 January 2026	Grenola 1 N, US	monthly snowfall (Tie)	15.2 cm (6.0 in)	tie	105 years	12 of 100 (Routine)
8 January 2026	Grenola 1 N, US	daily rain	22.4 mm (0.9 in)	8.4 mm (0.33 in)	18 years	20 of 100 (Routine)
20 February 2025	Grenola 1 N, US	daily snow depth	10.2 cm (4.0 in)	2.6 cm (1.0 in)	6 years	16 of 100 (Routine)
19 February 2025	Grenola 1 N, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	99 years	49 of 100 (Notable)
19 February 2025	Grenola 1 N, US	daily snowfall	10.2 cm (4.0 in)	2.6 cm (1.0 in)	123 years	46 of 100 (Notable)
16 February 2025	Grenola 1 N, US	daily snow depth (Tie)	2.5 cm (1.0 in)	tie	10 years	3 of 100 (Routine)
9 November 2024	Grenola 1 N, US	daily rain	38.1 mm (1.5 in)	4.6 mm (0.18 in)	105 years	42 of 100 (Notable)
16 May 2024	Grenola 1 N, US	daily rain	57.7 mm (2.3 in)	21.1 mm (0.8 in)	44 years	35 of 100 (Notable)
7 May 2024	Grenola 1 N, US	daily rain	55.4 mm (2.2 in)	21.9 mm (0.9 in)	75 years	44 of 100 (Notable)
28 April 2024	Grenola 1 N, US	monthly rain	143.0 mm (5.6 in)	38.9 mm (1.5 in)	36 years	58 of 100 (Notable)
6 January 2024	Grenola 1 N, US	daily snowfall	8.1 cm (3.2 in)	0.5 cm (0.2 in)	36 years	21 of 100 (Routine)
25 December 2023	Grenola 1 N, US	daily rain (Tie)	15.5 mm (0.6 in)	tie	40 years	5 of 100 (Routine)
26 November 2023	Grenola 1 N, US	daily snow depth	7.6 cm (3.0 in)	7.6 cm (3.0 in)	72 years	20 of 100 (Routine)
25 October 2023	Grenola 1 N, US	daily rain	58.4 mm (2.3 in)	7.6 mm (0.30 in)	123 years	44 of 100 (Notable)
25 January 2023	Grenola 1 N, US	daily snowfall	7.1 cm (2.8 in)	2.0 cm (0.8 in)	127 years	46 of 100 (Notable)

Climate Trend

31 complete years, 1893 to 1926

One stripe for each of 31 complete years at Grenola 1 N, 1893 to 1926. Blue stripes are years cooler than the station's own mean of 13.7 C (56.7 F); red stripes are warmer. The coolest year was 1905, at 12.0 C (53.6 F), and the warmest was 1921, at 15.7 C (60.3 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Grenola 1 N as warming stripes, 1893 to 1926
Year	Annual mean temperature	Difference from the station mean
1893	14.1 C	+0.39 C
1894	14.7 C	+1.01 C
1895	13.3 C	-0.45 C
1897	13.5 C	-0.23 C
1898	13.1 C	-0.60 C
1899	13.1 C	-0.58 C
1900	14.0 C	+0.34 C
1901	13.9 C	+0.21 C
1902	13.0 C	-0.71 C
1904	12.6 C	-1.08 C
1905	12.0 C	-1.68 C
1906	12.9 C	-0.84 C
1907	13.6 C	-0.12 C
1908	13.8 C	+0.11 C
1909	13.2 C	-0.47 C
1910	13.9 C	+0.15 C
1911	14.8 C	+1.06 C
1912	13.0 C	-0.71 C
1913	14.1 C	+0.39 C
1914	14.6 C	+0.86 C
1915	13.6 C	-0.08 C
1916	14.0 C	+0.26 C
1917	13.2 C	-0.55 C
1918	14.2 C	+0.51 C
1919	13.7 C	+0.01 C
1920	13.5 C	-0.25 C
1921	15.7 C	+2.03 C
1922	14.6 C	+0.87 C
1923	14.5 C	+0.78 C
1924	13.1 C	-0.64 C
1926	13.8 C	+0.13 C

The fitted trend in annual mean temperature here over 1893 to 1926 is 0.2 C (-0.1 to 0.5) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.4 F (-0.1 to 0.9) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Grenola 1 N
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (-0.1 to 0.5) per decade	0.4 F (-0.1 to 0.9) per decade	1893 to 1926	31	Not clearly different from zero
Mean daily maximum	0.2 C (-0.1 to 0.6) per decade	0.4 F (-0.2 to 1.0) per decade	1893 to 1926	31	Not clearly different from zero
Mean daily minimum	0.2 C (-0.1 to 0.5) per decade	0.4 F (-0.2 to 0.9) per decade	1893 to 1926	31	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

1893 to 2026

Yearly extremes at Grenola 1 N: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.9 C (111.0 F)	1893	40.0 C (104.0 F)	35
Coldest night (TNn)	-30.6 C (-23.1 F)	1905	-21.1 C (-6.0 F)	35
Wettest day (Rx1day)	277.6 mm (10.9 in)	1977	76.2 mm (3.0 in)	119
Wettest five days (Rx5day)	389.6 mm (15.3 in)	2007	107.1 mm (4.2 in)	114
Longest dry spell (CDD)	64 days	1966	29 days	118

Hottest day (TXx)

The hottest day of the year at Grenola 1 N, 1893 to 2026. The record is 43.9 C (111.0 F) in 1893, marked on the chart; the median year is 40.0 C (104.0 F).

Hottest day (TXx) at Grenola 1 N by year
Year	Hottest day (TXx)
1893	43.9 C (111.0 F)
1894	43.3 C (109.9 F)
1895	37.8 C (100.0 F)
1896	39.4 C (102.9 F)
1897	38.3 C (100.9 F)
1898	36.1 C (97.0 F)
1899	40.0 C (104.0 F)
1900	40.0 C (104.0 F)
1901	43.3 C (109.9 F)
1902	40.0 C (104.0 F)
1903	37.2 C (99.0 F)
1904	35.6 C (96.1 F)
1905	40.0 C (104.0 F)
1906	33.9 C (93.0 F)
1907	38.9 C (102.0 F)
1908	38.3 C (100.9 F)
1909	41.7 C (107.1 F)
1910	42.2 C (108.0 F)
1911	41.1 C (106.0 F)
1912	39.4 C (102.9 F)
1913	42.2 C (108.0 F)
1914	41.7 C (107.1 F)
1915	36.1 C (97.0 F)
1916	40.6 C (105.1 F)
1917	43.3 C (109.9 F)
1918	43.9 C (111.0 F)
1919	39.4 C (102.9 F)
1920	36.7 C (98.1 F)
1921	40.6 C (105.1 F)
1922	43.3 C (109.9 F)
1923	43.9 C (111.0 F)
1924	37.2 C (99.0 F)
1925	41.1 C (106.0 F)
1926	41.1 C (106.0 F)
1927	38.9 C (102.0 F)
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Grenola 1 N, 1893 to 2026. The record is -30.6 C (-23.1 F) in 1905, marked on the chart; the median year is -21.1 C (-6.0 F).

Coldest night (TNn) at Grenola 1 N by year
Year	Coldest night (TNn)
1893	-18.9 C (-2.0 F)
1894	-23.3 C (-9.9 F)
1895	-24.4 C (-11.9 F)
1896	-15.0 C (5.0 F)
1897	-18.3 C (-0.9 F)
1898	-21.1 C (-6.0 F)
1899	-29.4 C (-20.9 F)
1900	-21.1 C (-6.0 F)
1901	-20.6 C (-5.1 F)
1902	-20.0 C (-4.0 F)
1903	-23.9 C (-11.0 F)
1904	-23.3 C (-9.9 F)
1905	-30.6 C (-23.1 F)
1906	-18.3 C (-0.9 F)
1907	-16.1 C (3.0 F)
1908	-18.3 C (-0.9 F)
1909	-22.8 C (-9.0 F)
1910	-20.0 C (-4.0 F)
1911	-22.2 C (-8.0 F)
1912	-25.0 C (-13.0 F)
1913	-23.3 C (-9.9 F)
1914	-18.9 C (-2.0 F)
1915	-21.1 C (-6.0 F)
1916	-23.9 C (-11.0 F)
1917	-22.2 C (-8.0 F)
1918	-26.7 C (-16.1 F)
1919	-23.9 C (-11.0 F)
1920	-18.3 C (-0.9 F)
1921	-16.7 C (1.9 F)
1922	-15.0 C (5.0 F)
1923	-17.8 C (0.0 F)
1924	-23.3 C (-9.9 F)
1925	-18.3 C (-0.9 F)
1926	-17.8 C (0.0 F)
1927	-20.6 C (-5.1 F)
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Grenola 1 N, 1893 to 2026. The record is 277.6 mm (10.9 in) in 1977, marked on the chart; the median year is 76.2 mm (3.0 in).

Wettest day (Rx1day) at Grenola 1 N by year
Year	Wettest day (Rx1day)
1893	57.2 mm (2.3 in)
1894	57.2 mm (2.3 in)
1895	88.9 mm (3.5 in)
1896	57.2 mm (2.3 in)
1897	101.6 mm (4.0 in)
1898	96.0 mm (3.8 in)
1899	79.5 mm (3.1 in)
1900	95.3 mm (3.8 in)
1901	52.1 mm (2.1 in)
1902	50.8 mm (2.0 in)
1903	115.3 mm (4.5 in)
1904	49.0 mm (1.9 in)
1905	73.2 mm (2.9 in)
1906	83.1 mm (3.3 in)
1907	59.4 mm (2.3 in)
1908	74.9 mm (2.9 in)
1909	76.7 mm (3.0 in)
1910	44.5 mm (1.8 in)
1911	132.1 mm (5.2 in)
1912	92.7 mm (3.6 in)
1913	49.3 mm (1.9 in)
1914	47.5 mm (1.9 in)
1915	73.2 mm (2.9 in)
1916	77.0 mm (3.0 in)
1917	39.1 mm (1.5 in)
1918	132.8 mm (5.2 in)
1919	78.7 mm (3.1 in)
1920	64.3 mm (2.5 in)
1921	41.4 mm (1.6 in)
1922	129.8 mm (5.1 in)
1923	68.3 mm (2.7 in)
1924	63.5 mm (2.5 in)
1925	65.3 mm (2.6 in)
1926	76.7 mm (3.0 in)
1927	77.7 mm (3.1 in)
1943	22.1 mm (0.9 in)
1944	101.3 mm (4.0 in)
1945	68.1 mm (2.7 in)
1946	76.2 mm (3.0 in)
1947	48.5 mm (1.9 in)
1948	66.5 mm (2.6 in)
1949	64.0 mm (2.5 in)
1950	80.8 mm (3.2 in)
1951	110.5 mm (4.4 in)
1952	86.4 mm (3.4 in)
1953	67.1 mm (2.6 in)
1954	41.1 mm (1.6 in)
1955	96.0 mm (3.8 in)
1956	144.0 mm (5.7 in)
1957	89.4 mm (3.5 in)
1958	80.0 mm (3.1 in)
1959	49.5 mm (1.9 in)
1960	50.0 mm (2.0 in)
1961	160.3 mm (6.3 in)
1962	63.5 mm (2.5 in)
1963	49.5 mm (1.9 in)
1964	63.0 mm (2.5 in)
1965	86.1 mm (3.4 in)
1966	44.5 mm (1.8 in)
1967	64.0 mm (2.5 in)
1968	84.3 mm (3.3 in)
1969	54.1 mm (2.1 in)
1970	84.8 mm (3.3 in)
1971	57.7 mm (2.3 in)
1972	83.6 mm (3.3 in)
1973	69.3 mm (2.7 in)
1974	114.6 mm (4.5 in)
1975	67.1 mm (2.6 in)
1976	184.4 mm (7.3 in)
1977	277.6 mm (10.9 in)
1978	71.9 mm (2.8 in)
1979	60.7 mm (2.4 in)
1980	36.6 mm (1.4 in)
1981	54.6 mm (2.1 in)
1982	105.4 mm (4.1 in)
1983	40.6 mm (1.6 in)
1984	74.9 mm (2.9 in)
1985	79.2 mm (3.1 in)
1986	192.8 mm (7.6 in)
1987	112.8 mm (4.4 in)
1988	104.1 mm (4.1 in)
1989	142.2 mm (5.6 in)
1990	40.6 mm (1.6 in)
1991	56.4 mm (2.2 in)
1992	64.0 mm (2.5 in)
1993	60.2 mm (2.4 in)
1994	104.1 mm (4.1 in)
1995	63.5 mm (2.5 in)
1996	72.6 mm (2.9 in)
1997	85.1 mm (3.4 in)
1998	113.5 mm (4.5 in)
1999	76.2 mm (3.0 in)
2000	66.0 mm (2.6 in)
2001	74.9 mm (2.9 in)
2002	85.1 mm (3.4 in)
2003	96.5 mm (3.8 in)
2004	102.1 mm (4.0 in)
2005	87.6 mm (3.4 in)
2006	71.1 mm (2.8 in)
2007	134.6 mm (5.3 in)
2008	112.8 mm (4.4 in)
2009	57.9 mm (2.3 in)
2010	186.9 mm (7.4 in)
2011	91.4 mm (3.6 in)
2012	62.2 mm (2.4 in)
2013	48.3 mm (1.9 in)
2014	98.6 mm (3.9 in)
2015	96.5 mm (3.8 in)
2016	66.0 mm (2.6 in)
2017	83.6 mm (3.3 in)
2018	87.1 mm (3.4 in)
2019	197.1 mm (7.8 in)
2020	75.2 mm (3.0 in)
2021	79.5 mm (3.1 in)
2022	122.7 mm (4.8 in)
2023	58.4 mm (2.3 in)
2024	143.0 mm (5.6 in)
2025	48.8 mm (1.9 in)
2026	89.4 mm (3.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Grenola 1 N, 1893 to 2026. The record is 389.6 mm (15.3 in) in 2007, marked on the chart; the median year is 107.1 mm (4.2 in).

Wettest five days (Rx5day) at Grenola 1 N by year
Year	Wettest five days (Rx5day)
1893	57.2 mm (2.3 in)
1894	63.5 mm (2.5 in)
1895	100.3 mm (3.9 in)
1896	91.4 mm (3.6 in)
1897	140.2 mm (5.5 in)
1898	123.5 mm (4.9 in)
1899	155.2 mm (6.1 in)
1900	221.6 mm (8.7 in)
1901	82.1 mm (3.2 in)
1902	123.9 mm (4.9 in)
1903	183.9 mm (7.2 in)
1904	94.2 mm (3.7 in)
1905	111.0 mm (4.4 in)
1906	98.4 mm (3.9 in)
1907	119.5 mm (4.7 in)
1908	131.8 mm (5.2 in)
1909	102.3 mm (4.0 in)
1910	64.8 mm (2.6 in)
1911	136.7 mm (5.4 in)
1912	97.8 mm (3.9 in)
1913	91.2 mm (3.6 in)
1914	58.2 mm (2.3 in)
1915	119.2 mm (4.7 in)
1916	95.8 mm (3.8 in)
1917	53.8 mm (2.1 in)
1918	138.4 mm (5.4 in)
1919	78.7 mm (3.1 in)
1920	107.5 mm (4.2 in)
1921	95.5 mm (3.8 in)
1922	164.8 mm (6.5 in)
1923	88.9 mm (3.5 in)
1924	78.2 mm (3.1 in)
1925	78.4 mm (3.1 in)
1926	126.5 mm (5.0 in)
1927	97.7 mm (3.8 in)
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	84.6 mm (3.3 in)
1949	93.2 mm (3.7 in)
1950	118.1 mm (4.6 in)
1951	141.0 mm (5.6 in)
1952	86.4 mm (3.4 in)
1953	89.0 mm (3.5 in)
1954	58.9 mm (2.3 in)
1955	108.5 mm (4.3 in)
1956	145.8 mm (5.7 in)
1957	89.4 mm (3.5 in)
1958	93.9 mm (3.7 in)
1959	135.4 mm (5.3 in)
1960	56.9 mm (2.2 in)
1961	251.3 mm (9.9 in)
1962	80.0 mm (3.1 in)
1963	74.2 mm (2.9 in)
1964	166.9 mm (6.6 in)
1965	123.5 mm (4.9 in)
1966	56.6 mm (2.2 in)
1967	101.9 mm (4.0 in)
1968	100.8 mm (4.0 in)
1969	97.4 mm (3.8 in)
1970	128.5 mm (5.1 in)
1971	65.8 mm (2.6 in)
1972	132.2 mm (5.2 in)
1973	95.5 mm (3.8 in)
1974	192.8 mm (7.6 in)
1975	80.6 mm (3.2 in)
1976	256.0 mm (10.1 in)
1977	327.3 mm (12.9 in)
1978	88.3 mm (3.5 in)
1979	126.2 mm (5.0 in)
1980	44.2 mm (1.7 in)
1981	76.2 mm (3.0 in)
1982	145.8 mm (5.7 in)
1983	78.2 mm (3.1 in)
1984	109.2 mm (4.3 in)
1985	116.4 mm (4.6 in)
1986	350.0 mm (13.8 in)
1987	118.6 mm (4.7 in)
1988	134.6 mm (5.3 in)
1989	194.0 mm (7.6 in)
1990	84.2 mm (3.3 in)
1991	67.1 mm (2.6 in)
1992	97.1 mm (3.8 in)
1993	147.7 mm (5.8 in)
1994	167.1 mm (6.6 in)
1995	117.6 mm (4.6 in)
1996	84.8 mm (3.3 in)
1997	91.4 mm (3.6 in)
1998	151.1 mm (5.9 in)
1999	95.2 mm (3.7 in)
2000	90.8 mm (3.6 in)
2001	79.0 mm (3.1 in)
2002	106.6 mm (4.2 in)
2003	189.2 mm (7.4 in)
2004	122.4 mm (4.8 in)
2005	127.9 mm (5.0 in)
2006	84.5 mm (3.3 in)
2007	389.6 mm (15.3 in)
2008	128.3 mm (5.1 in)
2009	106.7 mm (4.2 in)
2010	214.1 mm (8.4 in)
2011	97.8 mm (3.9 in)
2012	80.8 mm (3.2 in)
2013	122.7 mm (4.8 in)
2014	107.5 mm (4.2 in)
2015	123.4 mm (4.9 in)
2016	124.5 mm (4.9 in)
2017	112.0 mm (4.4 in)
2018	146.3 mm (5.8 in)
2019	246.4 mm (9.7 in)
2020	148.5 mm (5.8 in)
2021	103.4 mm (4.1 in)
2022	159.3 mm (6.3 in)
2023	72.9 mm (2.9 in)
2024	177.1 mm (7.0 in)
2025	82.1 mm (3.2 in)
2026	127.1 mm (5.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Grenola 1 N, 1893 to 2026. The record is 64 days in 1966, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at Grenola 1 N by year
Year	Longest dry spell (CDD)
1893	36 days
1894	28 days
1895	27 days
1896	37 days
1897	25 days
1898	32 days
1899	37 days
1900	31 days
1901	38 days
1902	26 days
1903	42 days
1904	30 days
1905	34 days
1906	33 days
1907	25 days
1908	25 days
1909	31 days
1910	53 days
1911	29 days
1912	28 days
1913	20 days
1914	41 days
1915	35 days
1916	27 days
1917	39 days
1918	30 days
1919	29 days
1920	47 days
1921	62 days
1922	24 days
1923	40 days
1924	33 days
1925	26 days
1926	26 days
1927	16 days
1943	n/a
1944	1 day
1945	1 day
1946	1 day
1947	1 day
1948	25 days
1949	27 days
1950	58 days
1951	17 days
1952	52 days
1953	27 days
1954	52 days
1955	56 days
1956	37 days
1957	24 days
1958	30 days
1959	36 days
1960	25 days
1961	21 days
1962	22 days
1963	39 days
1964	30 days
1965	42 days
1966	64 days
1967	26 days
1968	25 days
1969	23 days
1970	43 days
1971	37 days
1972	29 days
1973	23 days
1974	43 days
1975	30 days
1976	36 days
1977	52 days
1978	34 days
1979	40 days
1980	33 days
1981	20 days
1982	19 days
1983	26 days
1984	26 days
1985	21 days
1986	30 days
1987	16 days
1988	24 days
1989	35 days
1990	24 days
1991	49 days
1992	16 days
1993	23 days
1994	26 days
1995	29 days
1996	38 days
1997	22 days
1998	26 days
1999	30 days
2000	26 days
2001	27 days
2002	19 days
2003	38 days
2004	24 days
2005	27 days
2006	34 days
2007	32 days
2008	27 days
2009	39 days
2010	35 days
2011	23 days
2012	33 days
2013	30 days
2014	33 days
2015	25 days
2016	34 days
2017	30 days
2018	25 days
2019	21 days
2020	26 days
2021	29 days
2022	32 days
2023	34 days
2024	31 days
2025	23 days
2026	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.

Frost Dates and Growing Season

31 years with a frost

Across 31 years with a frost, the median last spring frost at Grenola 1 N falls on 17 April and the median first autumn frost on 17 October, which leaves a median of 183 days between them.

Fitted over all years, the growing season changes by -3.4 days per decade at this station.

Frost dates and growing season at Grenola 1 N
Measure	Median, all years	Earliest period	Recent period (1894 to 1926)	Recent against earliest	Fitted trend
Last spring frost	17 April	n/a	18 April	n/a	+2.9 days per decade
First autumn frost	17 October	n/a	18 October	n/a	-0.6 days per decade
Growing days	183 days	n/a	182 days	n/a	-3.4 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

109 years, 1893 to 2025

A day with at least 75.5 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 230.8 mm (9.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Grenola 1 N: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	75.5 mm (3.0 in)
5 years	105.8 mm (4.2 in)
10 years	129.7 mm (5.1 in)
25 years	165.2 mm (6.5 in)
50 years	196.0 mm (7.7 in)
100 years	230.8 mm (9.1 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 109 years of values from 1893 to 2025.

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: 277.6 mm (10.9 in) in 1977; 197.1 mm (7.8 in) in 2019; 192.8 mm (7.6 in) in 1986.

Download the Data

Data for Grenola 1 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grenola 1 N 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).