Heavener 2 N Weather Records (USC00344008)

Record envelope, standing records and threshold days for Heavener 2 N (USC00344008), Oklahoma, United States, with 52 years of record.

Key Facts for Heavener 2 N

Heavener 2 N (USC00344008) is a weather station in Oklahoma, United States at 34.91 latitude and -94.60 longitude, 180 m (592 ft) above sea level.
The station reports from 1951 to 2002, 52 years of record.
6 records set at Heavener 2 N still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Heavener 2 N set a daily record precipitation of 63.5 mm (2.5 in) on 12 May 2002.

About the Station

Location: Oklahoma, United States, 34.91 latitude, -94.60 longitude.
Elevation: 180 m (592 ft).
Period of record: 1951 to 2002, 52 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 Heavener 2 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 Heavener 2 N, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	3.3 C (37.9 F)	-3.3 C (26.1 F)	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

6 standing records

6 records at Heavener 2 N still stand. 1979 holds the most, with 6.

All-Time Record Progression

1 new records

1 all-time records were set at Heavener 2 N between 7 January 1988 and 7 January 1988. Each dot is a new record.

Wettest Day of Each Month

Dec: 167.1 mm (6.6 in)

The wettest day on record for each calendar month at Heavener 2 N. The most was 167.1 mm (6.6 in) on 10 December 1971.

Record daily precipitation for each month at Heavener 2 N
Month	Record daily precipitation (mm)	Date
Jan	81.8 mm (3.2 in)	31 January 1982
Feb	70.1 mm (2.8 in)	15 February 2001
Mar	96.0 mm (3.8 in)	20 March 1968
Apr	132.3 mm (5.2 in)	7 April 2002
May	138.7 mm (5.5 in)	19 May 1960
Jun	128.3 mm (5.1 in)	7 June 1974
Jul	116.8 mm (4.6 in)	4 July 1995
Aug	160.3 mm (6.3 in)	12 August 1957
Sep	119.9 mm (4.7 in)	22 September 1965
Oct	133.4 mm (5.3 in)	18 October 1981
Nov	118.9 mm (4.7 in)	5 November 1994
Dec	167.1 mm (6.6 in)	10 December 1971

Period of Record Coverage

1979 to 1979

1 years of record at Heavener 2 N, 1979 to 1979. 1 years have data for under 90 percent of days and are left out of rankings: 1979.

Latest Records

Latest records at Heavener 2 N
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 2002	Heavener 2 N, US	daily rain	63.5 mm (2.5 in)	27.2 mm (1.1 in)	48 years	32 of 100 (Routine)
7 April 2002	Heavener 2 N, US	monthly rain	132.3 mm (5.2 in)	10.4 mm (0.4 in)	27 years	29 of 100 (Routine)
19 March 2002	Heavener 2 N, US	daily rain	78.5 mm (3.1 in)	38.9 mm (1.5 in)	4 years	33 of 100 (Routine)
30 January 2002	Heavener 2 N, US	daily rain	49.8 mm (2.0 in)	4.3 mm (0.17 in)	32 years	17 of 100 (Routine)
23 January 2002	Heavener 2 N, US	daily rain	30.5 mm (1.2 in)	3.6 mm (0.14 in)	6 years	9 of 100 (Routine)
8 September 2001	Heavener 2 N, US	daily rain	68.6 mm (2.7 in)	34.3 mm (1.4 in)	2 years	23 of 100 (Routine)
7 September 2001	Heavener 2 N, US	daily rain	35.8 mm (1.4 in)	7.4 mm (0.29 in)	28 years	16 of 100 (Routine)
29 May 2001	Heavener 2 N, US	daily rain	25.9 mm (1.0 in)	2.3 mm (0.09 in)	14 years	10 of 100 (Routine)
20 May 2001	Heavener 2 N, US	daily rain	81.0 mm (3.2 in)	8.9 mm (0.35 in)	40 years	21 of 100 (Routine)
15 February 2001	Heavener 2 N, US	monthly rain	70.1 mm (2.8 in)	19.3 mm (0.8 in)	15 years	35 of 100 (Notable)
23 September 2000	Heavener 2 N, US	daily rain	82.0 mm (3.2 in)	7.1 mm (0.28 in)	30 years	17 of 100 (Routine)
28 June 2000	Heavener 2 N, US	daily rain	32.3 mm (1.3 in)	7.4 mm (0.29 in)	11 years	12 of 100 (Routine)
21 June 2000	Heavener 2 N, US	daily rain	45.7 mm (1.8 in)	27.2 mm (1.1 in)	42 years	32 of 100 (Routine)
11 April 2000	Heavener 2 N, US	daily rain	50.8 mm (2.0 in)	30.5 mm (1.2 in)	12 years	26 of 100 (Routine)
26 March 2000	Heavener 2 N, US	daily rain	29.2 mm (1.1 in)	1.0 mm (0.04 in)	39 years	16 of 100 (Routine)
8 January 2000	Heavener 2 N, US	daily rain	8.4 mm (0.33 in)	6.9 mm (0.27 in)	40 years	20 of 100 (Routine)
3 January 2000	Heavener 2 N, US	daily rain	33.0 mm (1.3 in)	13.9 mm (0.5 in)	12 years	20 of 100 (Routine)
11 December 1999	Heavener 2 N, US	daily rain	63.2 mm (2.5 in)	10.9 mm (0.4 in)	38 years	21 of 100 (Routine)
8 September 1999	Heavener 2 N, US	daily rain	34.3 mm (1.4 in)	22.1 mm (0.9 in)	8 years	18 of 100 (Routine)
10 July 1999	Heavener 2 N, US	daily rain	38.4 mm (1.5 in)	10.5 mm (0.4 in)	34 years	20 of 100 (Routine)

Extremes by Year

1951 to 2002

Yearly extremes at Heavener 2 N: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	3.3 C (37.9 F)	1979	3.3 C (37.9 F)	1
Coldest night (TNn)	-3.3 C (26.1 F)	1979	-3.3 C (26.1 F)	1
Wettest day (Rx1day)	167.1 mm (6.6 in)	1971	84.8 mm (3.3 in)	52
Wettest five days (Rx5day)	268.3 mm (10.6 in)	1974	132.7 mm (5.2 in)	52
Longest dry spell (CDD)	46 days	1978	23 days	52

Hottest day (TXx)

The hottest day of the year at Heavener 2 N, 1951 to 2002. The record is 3.3 C (37.9 F) in 1979, marked on the chart; the median year is 3.3 C (37.9 F).

Hottest day (TXx) at Heavener 2 N by year
Year	Hottest day (TXx)
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	3.3 C (37.9 F)
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

Coldest night (TNn)

The coldest night of the year at Heavener 2 N, 1951 to 2002. The record is -3.3 C (26.1 F) in 1979, marked on the chart; the median year is -3.3 C (26.1 F).

Coldest night (TNn) at Heavener 2 N by year
Year	Coldest night (TNn)
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	-3.3 C (26.1 F)
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

Wettest day (Rx1day)

The wettest day of the year at Heavener 2 N, 1951 to 2002. The record is 167.1 mm (6.6 in) in 1971, marked on the chart; the median year is 84.8 mm (3.3 in).

Wettest day (Rx1day) at Heavener 2 N by year
Year	Wettest day (Rx1day)
1951	24.6 mm (1.0 in)
1952	73.7 mm (2.9 in)
1953	74.9 mm (2.9 in)
1954	51.1 mm (2.0 in)
1955	62.7 mm (2.5 in)
1956	52.8 mm (2.1 in)
1957	160.3 mm (6.3 in)
1958	83.1 mm (3.3 in)
1959	82.6 mm (3.3 in)
1960	138.7 mm (5.5 in)
1961	87.4 mm (3.4 in)
1962	94.0 mm (3.7 in)
1963	59.2 mm (2.3 in)
1964	97.0 mm (3.8 in)
1965	119.9 mm (4.7 in)
1966	76.7 mm (3.0 in)
1967	122.7 mm (4.8 in)
1968	96.0 mm (3.8 in)
1969	72.1 mm (2.8 in)
1970	87.4 mm (3.4 in)
1971	167.1 mm (6.6 in)
1972	68.3 mm (2.7 in)
1973	81.3 mm (3.2 in)
1974	128.3 mm (5.1 in)
1975	96.0 mm (3.8 in)
1976	62.0 mm (2.4 in)
1977	68.6 mm (2.7 in)
1978	64.5 mm (2.5 in)
1979	86.9 mm (3.4 in)
1980	79.2 mm (3.1 in)
1981	133.4 mm (5.3 in)
1982	119.4 mm (4.7 in)
1983	95.0 mm (3.7 in)
1984	78.0 mm (3.1 in)
1985	112.5 mm (4.4 in)
1986	61.7 mm (2.4 in)
1987	59.7 mm (2.4 in)
1988	48.3 mm (1.9 in)
1989	86.4 mm (3.4 in)
1990	124.5 mm (4.9 in)
1991	97.8 mm (3.9 in)
1992	61.0 mm (2.4 in)
1993	93.5 mm (3.7 in)
1994	118.9 mm (4.7 in)
1995	116.8 mm (4.6 in)
1996	87.9 mm (3.5 in)
1997	44.5 mm (1.8 in)
1998	95.8 mm (3.8 in)
1999	63.2 mm (2.5 in)
2000	82.0 mm (3.2 in)
2001	81.0 mm (3.2 in)
2002	132.3 mm (5.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Heavener 2 N, 1951 to 2002. The record is 268.3 mm (10.6 in) in 1974, marked on the chart; the median year is 132.7 mm (5.2 in).

Wettest five days (Rx5day) at Heavener 2 N by year
Year	Wettest five days (Rx5day)
1951	42.7 mm (1.7 in)
1952	92.0 mm (3.6 in)
1953	135.7 mm (5.3 in)
1954	98.4 mm (3.9 in)
1955	107.5 mm (4.2 in)
1956	82.0 mm (3.2 in)
1957	215.7 mm (8.5 in)
1958	135.4 mm (5.3 in)
1959	96.3 mm (3.8 in)
1960	231.1 mm (9.1 in)
1961	156.7 mm (6.2 in)
1962	94.0 mm (3.7 in)
1963	76.7 mm (3.0 in)
1964	149.9 mm (5.9 in)
1965	123.5 mm (4.9 in)
1966	128.5 mm (5.1 in)
1967	140.1 mm (5.5 in)
1968	158.3 mm (6.2 in)
1969	108.4 mm (4.3 in)
1970	108.0 mm (4.3 in)
1971	243.4 mm (9.6 in)
1972	153.7 mm (6.1 in)
1973	127.0 mm (5.0 in)
1974	268.3 mm (10.6 in)
1975	144.1 mm (5.7 in)
1976	112.1 mm (4.4 in)
1977	125.9 mm (5.0 in)
1978	130.8 mm (5.1 in)
1979	156.0 mm (6.1 in)
1980	84.5 mm (3.3 in)
1981	172.0 mm (6.8 in)
1982	170.8 mm (6.7 in)
1983	134.6 mm (5.3 in)
1984	161.2 mm (6.3 in)
1985	180.4 mm (7.1 in)
1986	117.6 mm (4.6 in)
1987	120.9 mm (4.8 in)
1988	75.2 mm (3.0 in)
1989	108.0 mm (4.3 in)
1990	211.4 mm (8.3 in)
1991	222.8 mm (8.8 in)
1992	95.5 mm (3.8 in)
1993	139.7 mm (5.5 in)
1994	195.1 mm (7.7 in)
1995	180.6 mm (7.1 in)
1996	134.8 mm (5.3 in)
1997	90.1 mm (3.5 in)
1998	158.3 mm (6.2 in)
1999	94.8 mm (3.7 in)
2000	96.5 mm (3.8 in)
2001	125.2 mm (4.9 in)
2002	168.4 mm (6.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Heavener 2 N, 1951 to 2002. The record is 46 days in 1978, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Heavener 2 N by year
Year	Longest dry spell (CDD)
1951	6 days
1952	27 days
1953	30 days
1954	28 days
1955	29 days
1956	44 days
1957	19 days
1958	19 days
1959	30 days
1960	16 days
1961	21 days
1962	25 days
1963	38 days
1964	23 days
1965	26 days
1966	27 days
1967	25 days
1968	15 days
1969	26 days
1970	25 days
1971	13 days
1972	21 days
1973	17 days
1974	21 days
1975	32 days
1976	25 days
1977	15 days
1978	46 days
1979	24 days
1980	33 days
1981	19 days
1982	16 days
1983	20 days
1984	19 days
1985	23 days
1986	27 days
1987	21 days
1988	17 days
1989	25 days
1990	24 days
1991	21 days
1992	21 days
1993	21 days
1994	19 days
1995	26 days
1996	25 days
1997	29 days
1998	22 days
1999	23 days
2000	45 days
2001	13 days
2002	17 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

45 years, 1952 to 2000

A day with at least 84.1 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 186.5 mm (7.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Heavener 2 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	84.1 mm (3.3 in)
5 years	110.0 mm (4.3 in)
10 years	127.7 mm (5.0 in)
25 years	150.8 mm (5.9 in)
50 years	168.5 mm (6.6 in)	Longer than the 45 years of record
100 years	186.5 mm (7.3 in)	Longer than the 45 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, 45 years of values from 1952 to 2000.

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: 167.1 mm (6.6 in) in 1971; 160.3 mm (6.3 in) in 1957; 138.7 mm (5.5 in) in 1960.

Download the Data

Data for Heavener 2 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Heavener 2 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 2026-10-13 (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).