Monahans Threshold Days by Year (USC00415999)

19 fixed thresholds counted per year at Monahans (USC00415999): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Monahans Thresholds

Monahans: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1986 with 24.
Monahans: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1986 with 8.
Monahans: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 1972 with 202.
Monahans: days with a maximum temperature at or above 35 C (95 F) in 37 years, most in 1998 with 134.
19 fixed thresholds have at least one qualifying day at Monahans.

Days at or above 30 C (86 F)

37 years with a qualifying day

Days per year at Monahans with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 202 in 1972.

Days at or above 30 C (86 F) per year at Monahans
Year	Days	Decade average
1960	168	158.8
1961	158	158.8
1962	173	158.8
1963	180	158.8
1964	155	158.8
1965	160	158.8
1966	150	158.8
1967	159	158.8
1968	136	158.8
1969	149	158.8
1971	169	158
1972	202	158
1974	116	158
1975	161	158
1976	137	158
1977	163	158
1980	153	167.1
1981	144	167.1
1985	162	167.1
1986	175	167.1
1987	157	167.1
1988	181	167.1
1989	198	167.1
1990	170	176
1991	178	176
1992	179	176
1993	185	176
1994	179	176
1995	168	176
1996	174	176
1997	163	176
1998	185	176
1999	179	176
2002	164	157.8
2003	164	157.8
2004	146	157.8
2005	157	157.8

For each year, a bar from the first to the last day at Monahans meeting 30 C (86 F).

First to last qualifying date each year at Monahans
Year	First date	Last date
1960	1960-03-08	1960-11-27
1961	1961-03-03	1961-10-24
1962	1962-02-11	1962-11-15
1963	1963-03-03	1963-11-07
1964	1964-04-01	1964-10-29
1965	1965-04-02	1965-11-25
1966	1966-03-10	1966-10-21
1967	1967-03-03	1967-10-28
1968	1968-03-30	1968-10-30
1969	1969-04-01	1969-10-19
1971	1971-03-13	1971-11-05
1972	1972-02-20	1972-10-19
1974	1974-01-21	1974-10-12
1975	1975-03-07	1975-11-09
1976	1976-02-09	1976-10-12
1977	1977-02-23	1977-10-30
1980	1980-04-01	1980-11-09
1981	1981-03-28	1981-11-19
1985	1985-03-12	1985-10-25
1986	1986-02-16	1986-10-10
1987	1987-04-12	1987-11-06
1988	1988-03-02	1988-11-10
1989	1989-02-26	1989-11-13
1990	1990-02-13	1990-11-01
1991	1991-03-05	1991-10-28
1992	1992-03-16	1992-11-11
1993	1993-03-09	1993-10-26
1994	1994-03-06	1994-11-27
1995	1995-03-20	1995-12-14
1996	1996-02-11	1996-11-21
1997	1997-03-05	1997-11-05
1998	1998-03-23	1998-11-10
1999	1999-02-11	1999-11-19
2002	2002-02-24	2002-10-12
2003	2003-02-02	2003-11-22
2004	2004-03-17	2004-10-21
2005	2005-04-04	2005-11-12

Every Fixed Threshold

Fixed thresholds at Monahans
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	37	202	1972	157
35 C (95 F): Days	37	134	1998	98
40 C (104 F): Days	32	51	1998	14
45 C (113 F): Days	4	6	1998	6
90 F (32.2 C): Days	37	173	1972	139
100 F (37.8 C): Days	37	87	1998	34
110 F (43.3 C): Days	13	22	1998	4
120 F (48.9 C): Days	1	1	1994	1
0 C (32 F): Ice days (max	22	6	1985	3
0 C (32 F): Frost days (min	37	90	1988	54
-10 C (14 F): Days with min	25	13	1989	2
-20 C (-4 F): Days with min	2	1	1962	1
20 C (68 F): Tropical nights (min	37	104	1980	63
25 C (77 F): Days with min	12	7	1980	1
10 mm (0.39 in): Days with 10 mm or more rain	42	24	1986	7
25 mm (0.98 in): Days with 25 mm or more rain	39	8	1986	2
50 mm (1.97 in): Days with 50 mm or more rain	18	2	1968	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1980	1
10 cm (3.9 in): Days with 10 cm or more snowfall	2	1	1974	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

Data for Monahans 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). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Monahans Threshold Days by Year (USC00415999)

Key Facts for Monahans Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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