Terry 21 NNW Threshold Days by Year (USC00248169)

15 fixed thresholds counted per year at Terry 21 NNW (USC00248169): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Terry 21 NNW Thresholds

Terry 21 NNW: days with a maximum temperature at or above 30 C (86 F) in 47 years, most in 1988 with 56.
Terry 21 NNW: days with a maximum temperature at or below 0 C (32 F) in 47 years, most in 1978 with 100.
Terry 21 NNW: nights with a minimum temperature at or below 0 C (32 F) in 47 years, most in 2009 with 212.
Terry 21 NNW: nights with a minimum temperature at or below -10 C (14 F) in 47 years, most in 1967 with 101.
15 fixed thresholds have at least one qualifying day at Terry 21 NNW.

Days at or above 30 C (86 F)

47 years with a qualifying day

Days per year at Terry 21 NNW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 56 in 1988.

Days at or above 30 C (86 F) per year at Terry 21 NNW
Year	Days	Decade average
1963	37	30.7
1964	31	30.7
1965	21	30.7
1966	36	30.7
1967	36	30.7
1968	20	30.7
1969	34	30.7
1970	39	27.6
1971	36	27.6
1972	21	27.6
1973	28	27.6
1974	24	27.6
1975	19	27.6
1976	26	27.6
1977	27	27.6
1978	23	27.6
1979	33	27.6
1980	35	35.5
1981	36	35.5
1982	27	35.5
1983	45	35.5
1984	42	35.5
1985	30	35.5
1986	24	35.5
1987	24	35.5
1988	56	35.5
1989	36	35.5
1990	44	27.5
1991	35	27.5
1992	16	27.5
1993	2	27.5
1994	32	27.5
1995	29	27.5
1996	24	27.5
1997	25	27.5
1998	44	27.5
1999	24	27.5
2000	37	32.3
2001	33	32.3
2002	31	32.3
2003	41	32.3
2004	14	32.3
2005	33	32.3
2006	39	32.3
2007	39	32.3
2008	29	32.3
2009	27	32.3

For each year, a bar from the first to the last day at Terry 21 NNW meeting 30 C (86 F).

First to last qualifying date each year at Terry 21 NNW
Year	First date	Last date
1963	1963-07-04	1963-10-04
1964	1964-05-20	1964-08-18
1965	1965-06-18	1965-08-16
1966	1966-05-21	1966-09-20
1967	1967-07-05	1967-09-10
1968	1968-06-02	1968-08-27
1969	1969-05-26	1969-09-13
1970	1970-05-17	1970-09-04
1971	1971-06-22	1971-09-11
1972	1972-05-17	1972-09-09
1973	1973-06-13	1973-08-30
1974	1974-06-17	1974-08-19
1975	1975-07-03	1975-08-28
1976	1976-06-02	1976-09-17
1977	1977-05-09	1977-08-25
1978	1978-05-15	1978-09-10
1979	1979-06-11	1979-09-16
1980	1980-04-20	1980-09-06
1981	1981-06-26	1981-09-19
1982	1982-07-19	1982-09-09
1983	1983-06-23	1983-09-07
1984	1984-05-30	1984-09-18
1985	1985-05-21	1985-08-30
1986	1986-05-31	1986-08-29
1987	1987-05-12	1987-09-23
1988	1988-05-16	1988-09-06
1989	1989-06-19	1989-09-30
1990	1990-06-10	1990-09-25
1991	1991-07-14	1991-09-07
1992	1992-05-07	1992-10-01
1993	1993-06-20	1993-06-21
1994	1994-06-21	1994-09-09
1995	1995-06-14	1995-09-03
1996	1996-06-27	1996-09-04
1997	1997-06-22	1997-10-02
1998	1998-07-09	1998-09-17
1999	1999-06-21	1999-08-30
2000	2000-06-07	2000-09-17
2001	2001-05-13	2001-09-28
2002	2002-06-26	2002-09-16
2003	2003-06-30	2003-09-08
2004	2004-06-29	2004-09-18
2005	2005-06-19	2005-10-01
2006	2006-05-18	2006-09-07
2007	2007-06-20	2007-09-16
2008	2008-06-30	2008-09-19
2009	2009-06-25	2009-09-19

Every Fixed Threshold

Fixed thresholds at Terry 21 NNW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	47	56	1988	27
35 C (95 F): Days	42	23	1988	1
40 C (104 F): Days	1	1	2007	1
90 F (32.2 C): Days	46	44	1988	13
100 F (37.8 C): Days	15	7	1988	2
0 C (32 F): Ice days (max	47	100	1978	69
0 C (32 F): Frost days (min	47	212	2009	212
-10 C (14 F): Days with min	47	101	1967	90
-20 C (-4 F): Days with min	47	51	1996	26
-30 C (-22 F): Days with min	45	12	1972	3
20 C (68 F): Tropical nights (min	16	8	1988	1
10 mm (0.39 in): Days with 10 mm or more rain	44	18	2005	16
25 mm (0.98 in): Days with 25 mm or more rain	35	4	1968	3
50 mm (1.97 in): Days with 50 mm or more rain	10	1	1963	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1997	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

Data for Terry 21 NNW 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).

Terry 21 NNW Threshold Days by Year (USC00248169)

Key Facts for Terry 21 NNW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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