Cody 21 SW Threshold Days by Year (USC00481855)

17 fixed thresholds counted per year at Cody 21 SW (USC00481855): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cody 21 SW Thresholds

Cody 21 SW: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1972 with 14.
Cody 21 SW: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 2007 with 53.
Cody 21 SW: days with a maximum temperature at or above 90 F (32.2 C) in 39 years, most in 2003 with 31.
Cody 21 SW: days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 1978 with 56.
17 fixed thresholds have at least one qualifying day at Cody 21 SW.

Days at or above 30 C (86 F)

39 years with a qualifying day

Days per year at Cody 21 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 53 in 2007.

Days at or above 30 C (86 F) per year at Cody 21 SW
Year	Days	Decade average
1964	20	20
1971	33	24.7
1972	21	24.7
1973	25	24.7
1974	31	24.7
1975	11	24.7
1976	24	24.7
1977	21	24.7
1978	24	24.7
1979	32	24.7
1980	23	25.7
1981	23	25.7
1982	20	25.7
1983	29	25.7
1984	22	25.7
1985	28	25.7
1986	19	25.7
1987	16	25.7
1988	51	25.7
1989	26	25.7
1990	29	26.1
1991	31	26.1
1992	12	26.1
1993	10	26.1
1994	35	26.1
1995	25	26.1
1996	35	26.1
1997	17	26.1
1998	34	26.1
1999	33	26.1
2000	46	38.7
2001	45	38.7
2002	35	38.7
2003	48	38.7
2004	20	38.7
2005	32	38.7
2006	34	38.7
2007	53	38.7
2008	35	38.7

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

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

Every Fixed Threshold

Fixed thresholds at Cody 21 SW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	39	53	2007	35
35 C (95 F): Days	23	10	2007	2
90 F (32.2 C): Days	39	31	2003	15
100 F (37.8 C): Days	3	2	2002	1
0 C (32 F): Ice days (max	39	56	1978	29
0 C (32 F): Frost days (min	39	209	1983	170
-10 C (14 F): Days with min	39	83	1985	38
-20 C (-4 F): Days with min	39	27	1985	8
-30 C (-22 F): Days with min	24	11	1972	1
-40 C (-40 F): Days with min	2	2	1989	1
20 C (68 F): Tropical nights (min	1	1	2000	1
10 mm (0.39 in): Days with 10 mm or more rain	41	14	1972	8
25 mm (0.98 in): Days with 25 mm or more rain	25	3	1974	2
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1964	1
10 cm (3.9 in): Days with 10 cm or more snowfall	38	9	1964	1
25 cm (9.8 in): Days with 25 cm or more snowfall	11	2	1984	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1964	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.

Download the Data

Data for Cody 21 SW 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).

Cody 21 SW Threshold Days by Year (USC00481855)

Key Facts for Cody 21 SW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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