Mt Pulaski Weather Records (USC00115927)

Record envelope, standing records and threshold days for Mt Pulaski (USC00115927), Illinois, United States, with 134 years of record.

Key Facts for Mt Pulaski

Mt Pulaski (USC00115927) is a weather station in Illinois, United States at 40.01 latitude and -89.28 longitude, 202 m (661 ft) above sea level.
The station reports from 1893 to 2026, 134 years of record.
1,464 records set at Mt Pulaski still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mt Pulaski set a daily record precipitation of 90.4 mm (3.6 in) on 15 August 2026.

About the Station

Location: Illinois, United States, 40.01 latitude, -89.28 longitude.
Elevation: 202 m (661 ft).
Period of record: 1893 to 2026, 134 years.
Eligible elements: 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 Mt Pulaski. 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 Mt Pulaski, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.1 C (70.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Feb	20.0 C (68.0 F)	-31.7 C (-25.1 F)	n/a	n/a
Mar	28.3 C (82.9 F)	-17.8 C (0.0 F)	n/a	n/a
Apr	33.9 C (93.0 F)	-7.8 C (18.0 F)	n/a	n/a
May	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Jun	37.2 C (99.0 F)	2.8 C (37.0 F)	n/a	n/a
Jul	44.4 C (111.9 F)	8.3 C (46.9 F)	n/a	n/a
Aug	38.3 C (100.9 F)	8.9 C (48.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	33.9 C (93.0 F)	-7.2 C (19.0 F)	n/a	n/a
Nov	26.1 C (79.0 F)	-17.8 C (0.0 F)	n/a	n/a
Dec	16.7 C (62.1 F)	-26.1 C (-15.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Mt Pulaski still stand. 1896 holds the most, with 155.

All-Time Record Progression

2 new records

2 all-time records were set at Mt Pulaski between 19 December 1973 and 3 January 1999. Each dot is a new record.

Wettest Day of Each Month

Jun: 183.4 mm (7.2 in)

The wettest day on record for each calendar month at Mt Pulaski. The most was 183.4 mm (7.2 in) on 28 June 1951.

Record daily precipitation for each month at Mt Pulaski
Month	Record daily precipitation (mm)	Date
Jan	65.3 mm (2.6 in)	8 January 2008
Feb	71.1 mm (2.8 in)	28 February 1900
Mar	137.7 mm (5.4 in)	27 March 1898
Apr	85.1 mm (3.4 in)	21 April 1973
May	88.9 mm (3.5 in)	5 May 1991
Jun	183.4 mm (7.2 in)	28 June 1951
Jul	101.9 mm (4.0 in)	12 July 2008
Aug	129.0 mm (5.1 in)	13 August 1999
Sep	145.5 mm (5.7 in)	22 September 2023
Oct	106.2 mm (4.2 in)	1 October 1977
Nov	67.3 mm (2.6 in)	5 November 2024
Dec	76.2 mm (3.0 in)	19 December 1895

Period of Record Coverage

1893 to 1905

13 years of record at Mt Pulaski, 1893 to 1905. 2 years have data for under 90 percent of days and are left out of rankings: 1893, 1894.

Days with data per year at Mt Pulaski
Year	Days with data	Share of year	Complete
1893	204	56%	No
1894	308	84%	No
1895	365	100%	Yes
1896	350	96%	Yes
1897	354	97%	Yes
1898	358	98%	Yes
1899	364	100%	Yes
1900	359	98%	Yes
1901	348	95%	Yes
1902	361	99%	Yes
1903	363	99%	Yes
1904	360	98%	Yes
1905	363	99%	Yes

Latest Records

Latest records at Mt Pulaski
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 2026	Mt Pulaski, US	daily rain	90.4 mm (3.6 in)	32.0 mm (1.3 in)	40 years	43 of 100 (Notable)
18 June 2026	Mt Pulaski, US	daily rain	56.6 mm (2.2 in)	25.1 mm (1.0 in)	16 years	31 of 100 (Routine)
18 April 2026	Mt Pulaski, US	daily rain	42.4 mm (1.7 in)	11.9 mm (0.5 in)	56 years	36 of 100 (Notable)
16 March 2026	Mt Pulaski, US	daily rain	23.4 mm (0.9 in)	3.3 mm (0.13 in)	4 years	14 of 100 (Routine)
11 March 2026	Mt Pulaski, US	daily rain	25.9 mm (1.0 in)	3.0 mm (0.12 in)	124 years	42 of 100 (Notable)
26 January 2026	Mt Pulaski, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	28 years	20 of 100 (Routine)
25 January 2026	Mt Pulaski, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	26 years	23 of 100 (Routine)
16 December 2025	Mt Pulaski, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	18 years	3 of 100 (Routine)
15 December 2025	Mt Pulaski, US	daily snow depth	15.2 cm (6.0 in)	2.5 cm (1.0 in)	12 years	15 of 100 (Routine)
14 December 2025	Mt Pulaski, US	daily snow depth	17.8 cm (7.0 in)	2.6 cm (1.0 in)	24 years	19 of 100 (Routine)
13 December 2025	Mt Pulaski, US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	15 years	3 of 100 (Routine)
12 December 2025	Mt Pulaski, US	daily snowfall	9.1 cm (3.6 in)	1.5 cm (0.6 in)	64 years	32 of 100 (Routine)
12 December 2025	Mt Pulaski, US	daily snow depth	10.2 cm (4.0 in)	7.7 cm (3.0 in)	20 years	28 of 100 (Routine)
8 December 2025	Mt Pulaski, US	daily snow depth	7.6 cm (3.0 in)	5.1 cm (2.0 in)	28 years	20 of 100 (Routine)
4 December 2025	Mt Pulaski, US	daily snow depth	12.7 cm (5.0 in)	7.6 cm (3.0 in)	28 years	30 of 100 (Routine)
3 December 2025	Mt Pulaski, US	daily snow depth	15.2 cm (6.0 in)	10.1 cm (4.0 in)	48 years	40 of 100 (Notable)
2 December 2025	Mt Pulaski, US	daily snowfall	8.4 cm (3.3 in)	0.8 cm (0.3 in)	58 years	28 of 100 (Routine)
1 December 2025	Mt Pulaski, US	daily snow depth (Tie)	12.7 cm (5.0 in)	tie	83 years	8 of 100 (Routine)
30 November 2025	Mt Pulaski, US	daily snowfall	17.3 cm (6.8 in)	12.2 cm (4.8 in)	58 years	54 of 100 (Notable)
30 November 2025	Mt Pulaski, US	daily snow depth (Tie)	15.2 cm (6.0 in)	tie	83 years	8 of 100 (Routine)

Climate Trend

11 complete years, 1895 to 1905

One stripe for each of 11 complete years at Mt Pulaski, 1895 to 1905. Blue stripes are years cooler than the station's own mean of 11.4 C (52.5 F); red stripes are warmer. The coolest year was 1904, at 10.1 C (50.2 F), and the warmest was 1900, at 12.5 C (54.4 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Mt Pulaski as warming stripes, 1895 to 1905
Year	Annual mean temperature	Difference from the station mean
1895	10.7 C	-0.70 C
1896	12.1 C	+0.73 C
1897	11.4 C	-0.05 C
1898	12.2 C	+0.75 C
1899	11.8 C	+0.36 C
1900	12.5 C	+1.05 C
1901	11.5 C	+0.10 C
1902	11.2 C	-0.16 C
1903	10.9 C	-0.49 C
1904	10.1 C	-1.27 C
1905	11.1 C	-0.34 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

1893 to 2026

Yearly extremes at Mt Pulaski: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.4 C (111.9 F)	1901	36.7 C (98.1 F)	13
Coldest night (TNn)	-31.7 C (-25.1 F)	1905	-25.6 C (-14.1 F)	13
Wettest day (Rx1day)	183.4 mm (7.2 in)	1951	62.4 mm (2.5 in)	98
Wettest five days (Rx5day)	252.8 mm (10.0 in)	1951	102.4 mm (4.0 in)	98
Longest dry spell (CDD)	66 days	1904	21 days	98

Hottest day (TXx)

The hottest day of the year at Mt Pulaski, 1893 to 2026. The record is 44.4 C (111.9 F) in 1901, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Mt Pulaski by year
Year	Hottest day (TXx)
1893	36.1 C (97.0 F)
1894	37.8 C (100.0 F)
1895	37.2 C (99.0 F)
1896	36.1 C (97.0 F)
1897	36.7 C (98.1 F)
1898	38.3 C (100.9 F)
1899	38.9 C (102.0 F)
1900	37.8 C (100.0 F)
1901	44.4 C (111.9 F)
1902	35.0 C (95.0 F)
1903	36.7 C (98.1 F)
1904	34.4 C (93.9 F)
1905	36.7 C (98.1 F)
1942	n/a
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 Mt Pulaski, 1893 to 2026. The record is -31.7 C (-25.1 F) in 1905, marked on the chart; the median year is -25.6 C (-14.1 F).

Coldest night (TNn) at Mt Pulaski by year
Year	Coldest night (TNn)
1893	-19.4 C (-2.9 F)
1894	-28.9 C (-20.0 F)
1895	-28.9 C (-20.0 F)
1896	-18.9 C (-2.0 F)
1897	-25.6 C (-14.1 F)
1898	-20.0 C (-4.0 F)
1899	-31.1 C (-24.0 F)
1900	-21.7 C (-7.1 F)
1901	-26.1 C (-15.0 F)
1902	-23.9 C (-11.0 F)
1903	-27.2 C (-17.0 F)
1904	-25.0 C (-13.0 F)
1905	-31.7 C (-25.1 F)
1942	n/a
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 Mt Pulaski, 1893 to 2026. The record is 183.4 mm (7.2 in) in 1951, marked on the chart; the median year is 62.4 mm (2.5 in).

Wettest day (Rx1day) at Mt Pulaski by year
Year	Wettest day (Rx1day)
1893	50.8 mm (2.0 in)
1894	73.7 mm (2.9 in)
1895	76.2 mm (3.0 in)
1896	85.3 mm (3.4 in)
1897	48.5 mm (1.9 in)
1898	137.7 mm (5.4 in)
1899	47.5 mm (1.9 in)
1900	88.9 mm (3.5 in)
1901	57.9 mm (2.3 in)
1902	79.0 mm (3.1 in)
1903	51.8 mm (2.0 in)
1904	83.8 mm (3.3 in)
1905	48.5 mm (1.9 in)
1942	51.8 mm (2.0 in)
1943	47.2 mm (1.9 in)
1944	60.2 mm (2.4 in)
1945	49.5 mm (1.9 in)
1946	65.3 mm (2.6 in)
1947	55.4 mm (2.2 in)
1948	50.8 mm (2.0 in)
1949	58.4 mm (2.3 in)
1950	48.3 mm (1.9 in)
1951	183.4 mm (7.2 in)
1952	35.6 mm (1.4 in)
1953	37.1 mm (1.5 in)
1954	34.5 mm (1.4 in)
1955	73.7 mm (2.9 in)
1956	102.1 mm (4.0 in)
1957	47.0 mm (1.9 in)
1958	58.7 mm (2.3 in)
1959	65.0 mm (2.6 in)
1960	57.2 mm (2.3 in)
1961	84.1 mm (3.3 in)
1962	43.2 mm (1.7 in)
1963	47.5 mm (1.9 in)
1964	55.4 mm (2.2 in)
1965	68.1 mm (2.7 in)
1966	69.1 mm (2.7 in)
1967	58.7 mm (2.3 in)
1968	51.6 mm (2.0 in)
1969	59.9 mm (2.4 in)
1970	91.2 mm (3.6 in)
1971	57.2 mm (2.3 in)
1972	65.8 mm (2.6 in)
1973	85.1 mm (3.4 in)
1974	89.2 mm (3.5 in)
1975	59.7 mm (2.4 in)
1976	55.9 mm (2.2 in)
1977	106.2 mm (4.2 in)
1978	62.0 mm (2.4 in)
1979	84.1 mm (3.3 in)
1980	58.7 mm (2.3 in)
1981	76.2 mm (3.0 in)
1982	76.2 mm (3.0 in)
1983	55.9 mm (2.2 in)
1984	50.8 mm (2.0 in)
1985	58.4 mm (2.3 in)
1986	71.1 mm (2.8 in)
1987	61.0 mm (2.4 in)
1988	53.3 mm (2.1 in)
1989	76.2 mm (3.0 in)
1990	63.5 mm (2.5 in)
1991	124.5 mm (4.9 in)
1992	69.1 mm (2.7 in)
1993	73.7 mm (2.9 in)
1994	81.3 mm (3.2 in)
1995	76.2 mm (3.0 in)
1996	60.5 mm (2.4 in)
1997	46.7 mm (1.8 in)
1998	47.8 mm (1.9 in)
1999	129.0 mm (5.1 in)
2000	71.9 mm (2.8 in)
2001	56.1 mm (2.2 in)
2002	75.7 mm (3.0 in)
2003	81.8 mm (3.2 in)
2004	56.1 mm (2.2 in)
2005	57.4 mm (2.3 in)
2006	62.7 mm (2.5 in)
2007	58.7 mm (2.3 in)
2008	101.9 mm (4.0 in)
2009	73.4 mm (2.9 in)
2010	79.5 mm (3.1 in)
2011	45.5 mm (1.8 in)
2012	59.9 mm (2.4 in)
2013	83.1 mm (3.3 in)
2014	89.9 mm (3.5 in)
2015	61.2 mm (2.4 in)
2016	56.1 mm (2.2 in)
2017	56.4 mm (2.2 in)
2018	94.7 mm (3.7 in)
2019	68.3 mm (2.7 in)
2020	62.7 mm (2.5 in)
2021	96.8 mm (3.8 in)
2022	49.0 mm (1.9 in)
2023	145.5 mm (5.7 in)
2024	71.4 mm (2.8 in)
2025	64.0 mm (2.5 in)
2026	90.4 mm (3.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mt Pulaski, 1893 to 2026. The record is 252.8 mm (10.0 in) in 1951, marked on the chart; the median year is 102.4 mm (4.0 in).

Wettest five days (Rx5day) at Mt Pulaski by year
Year	Wettest five days (Rx5day)
1893	53.8 mm (2.1 in)
1894	84.2 mm (3.3 in)
1895	153.2 mm (6.0 in)
1896	107.7 mm (4.2 in)
1897	92.4 mm (3.6 in)
1898	141.5 mm (5.6 in)
1899	104.4 mm (4.1 in)
1900	102.1 mm (4.0 in)
1901	97.6 mm (3.8 in)
1902	127.5 mm (5.0 in)
1903	79.0 mm (3.1 in)
1904	104.9 mm (4.1 in)
1905	73.1 mm (2.9 in)
1942	102.7 mm (4.0 in)
1943	127.5 mm (5.0 in)
1944	95.0 mm (3.7 in)
1945	77.2 mm (3.0 in)
1946	97.1 mm (3.8 in)
1947	98.1 mm (3.9 in)
1948	97.3 mm (3.8 in)
1949	88.9 mm (3.5 in)
1950	90.8 mm (3.6 in)
1951	252.8 mm (10.0 in)
1952	55.9 mm (2.2 in)
1953	58.4 mm (2.3 in)
1954	57.2 mm (2.3 in)
1955	111.3 mm (4.4 in)
1956	103.4 mm (4.1 in)
1957	146.3 mm (5.8 in)
1958	88.9 mm (3.5 in)
1959	111.2 mm (4.4 in)
1960	87.6 mm (3.4 in)
1961	123.7 mm (4.9 in)
1962	82.1 mm (3.2 in)
1963	57.4 mm (2.3 in)
1964	140.3 mm (5.5 in)
1965	104.9 mm (4.1 in)
1966	102.7 mm (4.0 in)
1967	86.6 mm (3.4 in)
1968	95.0 mm (3.7 in)
1969	138.6 mm (5.5 in)
1970	140.3 mm (5.5 in)
1971	82.9 mm (3.3 in)
1972	72.1 mm (2.8 in)
1973	144.9 mm (5.7 in)
1974	137.2 mm (5.4 in)
1975	65.0 mm (2.6 in)
1976	62.2 mm (2.4 in)
1977	138.2 mm (5.4 in)
1978	73.2 mm (2.9 in)
1979	146.9 mm (5.8 in)
1980	139.5 mm (5.5 in)
1981	141.0 mm (5.6 in)
1982	142.2 mm (5.6 in)
1983	106.7 mm (4.2 in)
1984	80.3 mm (3.2 in)
1985	87.9 mm (3.5 in)
1986	84.8 mm (3.3 in)
1987	96.5 mm (3.8 in)
1988	53.3 mm (2.1 in)
1989	160.0 mm (6.3 in)
1990	133.4 mm (5.3 in)
1991	132.1 mm (5.2 in)
1992	113.8 mm (4.5 in)
1993	93.5 mm (3.7 in)
1994	147.3 mm (5.8 in)
1995	121.6 mm (4.8 in)
1996	101.9 mm (4.0 in)
1997	45.5 mm (1.8 in)
1998	79.0 mm (3.1 in)
1999	131.0 mm (5.2 in)
2000	103.1 mm (4.1 in)
2001	102.8 mm (4.0 in)
2002	122.4 mm (4.8 in)
2003	116.1 mm (4.6 in)
2004	96.7 mm (3.8 in)
2005	83.6 mm (3.3 in)
2006	94.5 mm (3.7 in)
2007	66.6 mm (2.6 in)
2008	166.7 mm (6.6 in)
2009	101.8 mm (4.0 in)
2010	114.3 mm (4.5 in)
2011	74.7 mm (2.9 in)
2012	74.1 mm (2.9 in)
2013	88.9 mm (3.5 in)
2014	143.0 mm (5.6 in)
2015	116.1 mm (4.6 in)
2016	83.0 mm (3.3 in)
2017	101.6 mm (4.0 in)
2018	111.3 mm (4.4 in)
2019	98.9 mm (3.9 in)
2020	147.5 mm (5.8 in)
2021	160.0 mm (6.3 in)
2022	82.0 mm (3.2 in)
2023	180.9 mm (7.1 in)
2024	111.5 mm (4.4 in)
2025	110.0 mm (4.3 in)
2026	110.2 mm (4.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mt Pulaski, 1893 to 2026. The record is 66 days in 1904, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Mt Pulaski by year
Year	Longest dry spell (CDD)
1893	24 days
1894	21 days
1895	27 days
1896	17 days
1897	24 days
1898	20 days
1899	14 days
1900	17 days
1901	23 days
1902	20 days
1903	24 days
1904	66 days
1905	21 days
1942	28 days
1943	28 days
1944	26 days
1945	26 days
1946	16 days
1947	26 days
1948	27 days
1949	22 days
1950	27 days
1951	14 days
1952	25 days
1953	23 days
1954	23 days
1955	37 days
1956	33 days
1957	23 days
1958	22 days
1959	32 days
1960	19 days
1961	15 days
1962	22 days
1963	37 days
1964	29 days
1965	18 days
1966	19 days
1967	17 days
1968	17 days
1969	17 days
1970	15 days
1971	26 days
1972	18 days
1973	16 days
1974	15 days
1975	17 days
1976	25 days
1977	14 days
1978	21 days
1979	29 days
1980	19 days
1981	24 days
1982	19 days
1983	26 days
1984	20 days
1985	22 days
1986	33 days
1987	29 days
1988	34 days
1989	45 days
1990	29 days
1991	21 days
1992	28 days
1993	23 days
1994	17 days
1995	20 days
1996	15 days
1997	3 days
1998	20 days
1999	37 days
2000	15 days
2001	16 days
2002	22 days
2003	15 days
2004	21 days
2005	20 days
2006	19 days
2007	16 days
2008	16 days
2009	13 days
2010	16 days
2011	17 days
2012	26 days
2013	29 days
2014	17 days
2015	31 days
2016	13 days
2017	21 days
2018	13 days
2019	13 days
2020	21 days
2021	15 days
2022	17 days
2023	22 days
2024	19 days
2025	19 days
2026	19 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.

Rainfall Return Levels

88 years, 1895 to 2025

A day with at least 64.8 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 160.3 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Mt Pulaski: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	64.8 mm (2.6 in)
5 years	84.4 mm (3.3 in)
10 years	99.4 mm (3.9 in)
25 years	121.3 mm (4.8 in)
50 years	139.8 mm (5.5 in)
100 years	160.3 mm (6.3 in)	Longer than the 88 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, 88 years of values from 1895 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: 183.4 mm (7.2 in) in 1951; 145.5 mm (5.7 in) in 2023; 137.7 mm (5.4 in) in 1898.

Download the Data

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

Date	Kind	Detail
1973-12-19	Record daily snowfall	Record daily snowfall 33.0 cm (13.0 in)
1999-01-03	Record snow depth	Record snow depth 33.0 cm (13.0 in)