Zalma 4 E Weather Records (USC00239178)

Record envelope, standing records and threshold days for Zalma 4 E (USC00239178), Missouri, United States, with 78 years of record.

Key Facts for Zalma 4 E

Zalma 4 E (USC00239178) is a weather station in Missouri, United States at 37.16 latitude and -90.01 longitude, 128 m (420 ft) above sea level.
The station reports from 1936 to 2013, 78 years of record.
1,464 records set at Zalma 4 E still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Zalma 4 E set a daily record snowfall of 5.1 cm (2.0 in) on 29 December 2012.

About the Station

Location: Missouri, United States, 37.16 latitude, -90.01 longitude.
Elevation: 128 m (420 ft).
Period of record: 1936 to 2013, 78 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 Zalma 4 E. 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 Zalma 4 E, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	20.6 C (69.1 F)	-20.0 C (-4.0 F)	n/a	n/a
Feb	22.8 C (73.0 F)	-20.0 C (-4.0 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-10.6 C (12.9 F)	n/a	n/a
Apr	29.4 C (84.9 F)	-2.8 C (27.0 F)	n/a	n/a
May	34.4 C (93.9 F)	1.1 C (34.0 F)	n/a	n/a
Jun	41.7 C (107.1 F)	8.3 C (46.9 F)	n/a	n/a
Jul	41.1 C (106.0 F)	12.2 C (54.0 F)	n/a	n/a
Aug	40.0 C (104.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	36.7 C (98.1 F)	3.3 C (37.9 F)	n/a	n/a
Oct	32.2 C (90.0 F)	-3.3 C (26.1 F)	n/a	n/a
Nov	24.4 C (75.9 F)	-8.3 C (17.1 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-16.1 C (3.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Zalma 4 E still stand. 2012 holds the most, with 292.

All-Time Record Progression

8 new records

8 all-time records were set at Zalma 4 E between 16 July 1972 and 19 March 2008. Each dot is a new record.

When Zalma 4 E set new all-time records
Date	Kind	Detail
1972-07-16	Record daily precipitation	Record daily precipitation 130.0 mm (5.1 in)
1973-05-27	Record daily precipitation	Record daily precipitation 161.3 mm (6.4 in)
1977-01-10	Record daily snowfall	Record daily snowfall 20.3 cm (8.0 in)
1977-03-28	Record daily precipitation	Record daily precipitation 232.2 mm (9.1 in)
1978-01-17	Record daily snowfall	Record daily snowfall 25.4 cm (10.0 in)
1979-02-25	Record daily snowfall	Record daily snowfall 45.7 cm (18.0 in)
1985-01-31	Record snow depth	Record snow depth 40.6 cm (16.0 in)
2008-03-19	Record daily precipitation	Record daily precipitation 263.4 mm (10.4 in)

Wettest Day of Each Month

Mar: 263.4 mm (10.4 in)

The wettest day on record for each calendar month at Zalma 4 E. The most was 263.4 mm (10.4 in) on 19 March 2008.

Record daily precipitation for each month at Zalma 4 E
Month	Record daily precipitation (mm)	Date
Jan	132.1 mm (5.2 in)	30 January 2010
Feb	89.4 mm (3.5 in)	26 February 1945
Mar	263.4 mm (10.4 in)	19 March 2008
Apr	129.8 mm (5.1 in)	4 April 2008
May	161.3 mm (6.4 in)	27 May 1973
Jun	106.7 mm (4.2 in)	8 June 1945
Jul	130.0 mm (5.1 in)	16 July 1972
Aug	104.1 mm (4.1 in)	30 August 1978
Sep	166.4 mm (6.6 in)	3 September 1988
Oct	98.8 mm (3.9 in)	16 October 2006
Nov	128.8 mm (5.1 in)	5 November 1994
Dec	177.8 mm (7.0 in)	21 December 2004

Period of Record Coverage

2007 to 2013

7 years of record at Zalma 4 E, 2007 to 2013. 2 years have data for under 90 percent of days and are left out of rankings: 2007, 2013.

Latest Records

Latest records at Zalma 4 E
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 December 2012	Zalma 4 E, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	76 years	41 of 100 (Notable)
29 December 2012	Zalma 4 E, US	daily snow depth	5.1 cm (2.0 in)	5.1 cm (2.0 in)	64 years	20 of 100 (Routine)
26 December 2012	Zalma 4 E, US	daily snow depth	7.6 cm (3.0 in)	2.5 cm (1.0 in)	49 years	20 of 100 (Routine)
12 October 2012	Zalma 4 E, US	daily rain	53.6 mm (2.1 in)	7.9 mm (0.31 in)	63 years	29 of 100 (Routine)
2 September 2012	Zalma 4 E, US	daily rain	89.9 mm (3.5 in)	40.4 mm (1.6 in)	9 years	32 of 100 (Routine)
27 July 2012	Zalma 4 E, US	daily rain	66.0 mm (2.6 in)	15.2 mm (0.6 in)	14 years	19 of 100 (Routine)
16 March 2012	Zalma 4 E, US	daily rain	63.8 mm (2.5 in)	35.6 mm (1.4 in)	10 years	27 of 100 (Routine)
29 February 2012	Zalma 4 E, US	daily rain	20.3 mm (0.8 in)	19.5 mm (0.8 in)	68 years	20 of 100 (Routine)
11 January 2012	Zalma 4 E, US	daily rain	35.3 mm (1.4 in)	7.6 mm (0.30 in)	32 years	20 of 100 (Routine)
15 November 2011	Zalma 4 E, US	daily rain	79.2 mm (3.1 in)	15.7 mm (0.6 in)	52 years	31 of 100 (Routine)
2 May 2011	Zalma 4 E, US	daily rain	105.7 mm (4.2 in)	60.2 mm (2.4 in)	37 years	56 of 100 (Notable)
26 April 2011	Zalma 4 E, US	daily rain	75.4 mm (3.0 in)	54.1 mm (2.1 in)	52 years	55 of 100 (Notable)
25 April 2011	Zalma 4 E, US	daily rain	58.4 mm (2.3 in)	13.7 mm (0.5 in)	36 years	25 of 100 (Routine)
24 April 2011	Zalma 4 E, US	daily rain	106.4 mm (4.2 in)	42.9 mm (1.7 in)	8 years	35 of 100 (Notable)
10 February 2011	Zalma 4 E, US	daily snow depth	5.1 cm (2.0 in)	5.1 cm (2.0 in)	63 years	20 of 100 (Routine)
21 January 2011	Zalma 4 E, US	daily snowfall	8.4 cm (3.3 in)	6.4 cm (2.5 in)	28 years	29 of 100 (Routine)
30 November 2010	Zalma 4 E, US	daily rain	45.2 mm (1.8 in)	10.9 mm (0.4 in)	35 years	23 of 100 (Routine)
17 May 2010	Zalma 4 E, US	daily rain	28.4 mm (1.1 in)	7.6 mm (0.30 in)	20 years	17 of 100 (Routine)
9 February 2010	Zalma 4 E, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	30 years	4 of 100 (Routine)
9 February 2010	Zalma 4 E, US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	30 years	4 of 100 (Routine)

Extremes by Year

1936 to 2013

Yearly extremes at Zalma 4 E: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.7 C (107.1 F)	2012	36.1 C (97.0 F)	7
Coldest night (TNn)	-20.0 C (-4.0 F)	2010	-16.1 C (3.0 F)	7
Wettest day (Rx1day)	263.4 mm (10.4 in)	2008	80.2 mm (3.2 in)	78
Wettest five days (Rx5day)	347.9 mm (13.7 in)	2011	114.3 mm (4.5 in)	78
Longest dry spell (CDD)	55 days	1974	25 days	78

Hottest day (TXx)

The hottest day of the year at Zalma 4 E, 1936 to 2013. The record is 41.7 C (107.1 F) in 2012, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Zalma 4 E by year
Year	Hottest day (TXx)
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
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	36.1 C (97.0 F)
2008	36.1 C (97.0 F)
2009	35.6 C (96.1 F)
2010	38.9 C (102.0 F)
2011	40.0 C (104.0 F)
2012	41.7 C (107.1 F)
2013	20.6 C (69.1 F)

Coldest night (TNn)

The coldest night of the year at Zalma 4 E, 1936 to 2013. The record is -20.0 C (-4.0 F) in 2010, marked on the chart; the median year is -16.1 C (3.0 F).

Coldest night (TNn) at Zalma 4 E by year
Year	Coldest night (TNn)
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
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	-8.3 C (17.1 F)
2008	-16.1 C (3.0 F)
2009	-17.8 C (0.0 F)
2010	-20.0 C (-4.0 F)
2011	-20.0 C (-4.0 F)
2012	-11.7 C (10.9 F)
2013	-11.1 C (12.0 F)

Wettest day (Rx1day)

The wettest day of the year at Zalma 4 E, 1936 to 2013. The record is 263.4 mm (10.4 in) in 2008, marked on the chart; the median year is 80.2 mm (3.2 in).

Wettest day (Rx1day) at Zalma 4 E by year
Year	Wettest day (Rx1day)
1936	53.3 mm (2.1 in)
1937	104.1 mm (4.1 in)
1938	78.0 mm (3.1 in)
1939	105.9 mm (4.2 in)
1940	54.4 mm (2.1 in)
1941	53.3 mm (2.1 in)
1942	95.5 mm (3.8 in)
1943	59.9 mm (2.4 in)
1944	102.6 mm (4.0 in)
1945	106.7 mm (4.2 in)
1946	103.1 mm (4.1 in)
1947	42.2 mm (1.7 in)
1948	81.3 mm (3.2 in)
1949	74.4 mm (2.9 in)
1950	102.9 mm (4.1 in)
1951	92.2 mm (3.6 in)
1952	79.5 mm (3.1 in)
1953	45.0 mm (1.8 in)
1954	75.9 mm (3.0 in)
1955	91.7 mm (3.6 in)
1956	58.7 mm (2.3 in)
1957	101.1 mm (4.0 in)
1958	83.6 mm (3.3 in)
1959	61.2 mm (2.4 in)
1960	48.5 mm (1.9 in)
1961	87.9 mm (3.5 in)
1962	50.0 mm (2.0 in)
1963	87.9 mm (3.5 in)
1964	123.2 mm (4.9 in)
1965	74.4 mm (2.9 in)
1966	80.8 mm (3.2 in)
1967	59.7 mm (2.4 in)
1968	70.6 mm (2.8 in)
1969	90.2 mm (3.6 in)
1970	56.9 mm (2.2 in)
1971	72.4 mm (2.9 in)
1972	130.0 mm (5.1 in)
1973	161.3 mm (6.4 in)
1974	66.8 mm (2.6 in)
1975	69.1 mm (2.7 in)
1976	102.6 mm (4.0 in)
1977	232.2 mm (9.1 in)
1978	104.1 mm (4.1 in)
1979	78.7 mm (3.1 in)
1980	34.8 mm (1.4 in)
1981	55.1 mm (2.2 in)
1982	90.2 mm (3.6 in)
1983	123.2 mm (4.9 in)
1984	74.9 mm (2.9 in)
1985	77.0 mm (3.0 in)
1986	51.3 mm (2.0 in)
1987	57.7 mm (2.3 in)
1988	166.4 mm (6.6 in)
1989	78.0 mm (3.1 in)
1990	78.7 mm (3.1 in)
1991	96.5 mm (3.8 in)
1992	84.6 mm (3.3 in)
1993	47.8 mm (1.9 in)
1994	128.8 mm (5.1 in)
1995	53.3 mm (2.1 in)
1996	72.6 mm (2.9 in)
1997	74.4 mm (2.9 in)
1998	85.1 mm (3.4 in)
1999	105.4 mm (4.1 in)
2000	54.9 mm (2.2 in)
2001	124.5 mm (4.9 in)
2002	103.1 mm (4.1 in)
2003	100.3 mm (3.9 in)
2004	177.8 mm (7.0 in)
2005	64.3 mm (2.5 in)
2006	98.8 mm (3.9 in)
2007	55.9 mm (2.2 in)
2008	263.4 mm (10.4 in)
2009	68.1 mm (2.7 in)
2010	132.1 mm (5.2 in)
2011	106.4 mm (4.2 in)
2012	89.9 mm (3.5 in)
2013	26.7 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Zalma 4 E, 1936 to 2013. The record is 347.9 mm (13.7 in) in 2011, marked on the chart; the median year is 114.3 mm (4.5 in).

Wettest five days (Rx5day) at Zalma 4 E by year
Year	Wettest five days (Rx5day)
1936	53.3 mm (2.1 in)
1937	137.3 mm (5.4 in)
1938	108.9 mm (4.3 in)
1939	107.4 mm (4.2 in)
1940	83.0 mm (3.3 in)
1941	95.0 mm (3.7 in)
1942	104.4 mm (4.1 in)
1943	98.1 mm (3.9 in)
1944	115.1 mm (4.5 in)
1945	219.0 mm (8.6 in)
1946	159.2 mm (6.3 in)
1947	79.8 mm (3.1 in)
1948	82.1 mm (3.2 in)
1949	164.8 mm (6.5 in)
1950	156.2 mm (6.1 in)
1951	113.5 mm (4.5 in)
1952	99.1 mm (3.9 in)
1953	74.4 mm (2.9 in)
1954	86.9 mm (3.4 in)
1955	123.7 mm (4.9 in)
1956	80.6 mm (3.2 in)
1957	178.0 mm (7.0 in)
1958	165.6 mm (6.5 in)
1959	109.2 mm (4.3 in)
1960	80.2 mm (3.2 in)
1961	184.6 mm (7.3 in)
1962	87.6 mm (3.4 in)
1963	165.1 mm (6.5 in)
1964	202.2 mm (8.0 in)
1965	139.7 mm (5.5 in)
1966	109.3 mm (4.3 in)
1967	87.4 mm (3.4 in)
1968	119.6 mm (4.7 in)
1969	130.6 mm (5.1 in)
1970	115.3 mm (4.5 in)
1971	76.4 mm (3.0 in)
1972	134.6 mm (5.3 in)
1973	191.3 mm (7.5 in)
1974	79.0 mm (3.1 in)
1975	109.4 mm (4.3 in)
1976	128.3 mm (5.1 in)
1977	259.9 mm (10.2 in)
1978	155.9 mm (6.1 in)
1979	152.1 mm (6.0 in)
1980	66.8 mm (2.6 in)
1981	81.2 mm (3.2 in)
1982	142.3 mm (5.6 in)
1983	202.5 mm (8.0 in)
1984	137.7 mm (5.4 in)
1985	149.9 mm (5.9 in)
1986	66.5 mm (2.6 in)
1987	112.8 mm (4.4 in)
1988	203.5 mm (8.0 in)
1989	126.8 mm (5.0 in)
1990	106.9 mm (4.2 in)
1991	113.0 mm (4.4 in)
1992	90.4 mm (3.6 in)
1993	98.5 mm (3.9 in)
1994	157.0 mm (6.2 in)
1995	89.1 mm (3.5 in)
1996	86.2 mm (3.4 in)
1997	90.7 mm (3.6 in)
1998	109.5 mm (4.3 in)
1999	122.2 mm (4.8 in)
2000	91.5 mm (3.6 in)
2001	124.5 mm (4.9 in)
2002	201.5 mm (7.9 in)
2003	179.0 mm (7.0 in)
2004	177.8 mm (7.0 in)
2005	107.5 mm (4.2 in)
2006	215.8 mm (8.5 in)
2007	90.1 mm (3.5 in)
2008	271.0 mm (10.7 in)
2009	117.9 mm (4.6 in)
2010	132.1 mm (5.2 in)
2011	347.9 mm (13.7 in)
2012	107.2 mm (4.2 in)
2013	32.3 mm (1.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Zalma 4 E, 1936 to 2013. The record is 55 days in 1974, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Zalma 4 E by year
Year	Longest dry spell (CDD)
1936	22 days
1937	17 days
1938	19 days
1939	34 days
1940	26 days
1941	19 days
1942	21 days
1943	30 days
1944	28 days
1945	24 days
1946	19 days
1947	19 days
1948	20 days
1949	23 days
1950	24 days
1951	15 days
1952	36 days
1953	31 days
1954	28 days
1955	29 days
1956	18 days
1957	23 days
1958	19 days
1959	14 days
1960	16 days
1961	21 days
1962	16 days
1963	28 days
1964	51 days
1965	27 days
1966	25 days
1967	19 days
1968	36 days
1969	17 days
1970	16 days
1971	20 days
1972	21 days
1973	27 days
1974	55 days
1975	34 days
1976	25 days
1977	29 days
1978	30 days
1979	23 days
1980	28 days
1981	33 days
1982	19 days
1983	32 days
1984	18 days
1985	32 days
1986	25 days
1987	25 days
1988	31 days
1989	23 days
1990	39 days
1991	20 days
1992	27 days
1993	18 days
1994	21 days
1995	23 days
1996	29 days
1997	16 days
1998	55 days
1999	51 days
2000	21 days
2001	29 days
2002	27 days
2003	27 days
2004	25 days
2005	25 days
2006	16 days
2007	17 days
2008	17 days
2009	27 days
2010	39 days
2011	25 days
2012	22 days
2013	9 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

73 years, 1937 to 2012

A day with at least 79.6 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 229.6 mm (9.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Zalma 4 E: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	79.6 mm (3.1 in)
5 years	110.7 mm (4.4 in)
10 years	134.4 mm (5.3 in)
25 years	168.7 mm (6.6 in)
50 years	197.6 mm (7.8 in)
100 years	229.6 mm (9.0 in)	Longer than the 73 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, 73 years of values from 1937 to 2012.

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: 263.4 mm (10.4 in) in 2008; 232.2 mm (9.1 in) in 1977; 177.8 mm (7.0 in) in 2004.

Download the Data

Data for Zalma 4 E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Zalma 4 E 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 2026-10-13 (13 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).

Year	Days with data	Share of year	Complete
2007	121	33%	No
2008	359	98%	Yes
2009	333	91%	Yes
2010	358	98%	Yes
2011	361	99%	Yes
2012	364	99%	Yes
2013	19	5%	No