Stilwell 5 NNW Threshold Days by Year (USC00348506)

17 fixed thresholds counted per year at Stilwell 5 NNW (USC00348506): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stilwell 5 NNW Thresholds

Stilwell 5 NNW: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1973 with 58.
Stilwell 5 NNW: days with 25 mm (0.98 in) or more of precipitation in 51 years, most in 1973 with 28.
Stilwell 5 NNW: days with 50 mm (1.97 in) or more of precipitation in 47 years, most in 1973 with 10.
Stilwell 5 NNW: days with a maximum temperature at or above 30 C (86 F) in 40 years, most in 1963 with 118.
17 fixed thresholds have at least one qualifying day at Stilwell 5 NNW.

Days at or above 30 C (86 F)

40 years with a qualifying day

Days per year at Stilwell 5 NNW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 118 in 1963.

Days at or above 30 C (86 F) per year at Stilwell 5 NNW
Year	Days	Decade average
1960	95	86.1
1961	63	86.1
1962	90	86.1
1963	118	86.1
1964	90	86.1
1965	95	86.1
1966	73	86.1
1967	73	86.1
1968	75	86.1
1969	89	86.1
1970	88	84.3
1971	81	84.3
1972	95	84.3
1973	76	84.3
1974	66	84.3
1975	89	84.3
1976	60	84.3
1977	104	84.3
1978	98	84.3
1979	86	84.3
1980	112	84.2
1981	78	84.2
1982	83	84.2
1983	79	84.2
1984	85	84.2
1985	83	84.2
1986	76	84.2
1987	89	84.2
1988	92	84.2
1989	65	84.2
1990	85	74.8
1991	92	74.8
1992	49	74.8
1995	68	74.8
1996	67	74.8
1997	60	74.8
1998	104	74.8
1999	73	74.8
2000	92	86.5
2001	81	86.5

For each year, a bar from the first to the last day at Stilwell 5 NNW meeting 30 C (86 F).

First to last qualifying date each year at Stilwell 5 NNW
Year	First date	Last date
1960	1960-04-06	1960-10-03
1961	1961-05-30	1961-09-24
1962	1962-04-29	1962-10-11
1963	1963-03-28	1963-10-18
1964	1964-05-20	1964-09-19
1965	1965-04-09	1965-10-10
1966	1966-03-31	1966-10-09
1967	1967-03-11	1967-10-06
1968	1968-05-02	1968-09-23
1969	1969-05-28	1969-10-04
1970	1970-06-12	1970-09-21
1971	1971-06-01	1971-09-30
1972	1972-04-12	1972-09-27
1973	1973-05-10	1973-10-03
1974	1974-03-31	1974-08-31
1975	1975-04-17	1975-10-12
1976	1976-06-13	1976-10-02
1977	1977-05-07	1977-10-27
1978	1978-05-20	1978-10-21
1979	1979-06-07	1979-10-20
1980	1980-05-11	1980-10-09
1981	1981-06-07	1981-10-05
1982	1982-05-29	1982-10-05
1983	1983-06-19	1983-10-04
1984	1984-05-13	1984-09-14
1985	1985-05-26	1985-09-22
1986	1986-06-07	1986-09-27
1987	1987-04-17	1987-09-14
1988	1988-05-11	1988-09-22
1989	1989-04-22	1989-10-12
1990	1990-05-25	1990-09-27
1991	1991-05-12	1991-09-15
1992	1992-06-16	1992-09-18
1995	1995-03-22	1995-09-14
1996	1996-04-19	1996-09-12
1997	1997-06-19	1997-10-07
1998	1998-05-15	1998-09-30
1999	1999-06-03	1999-11-14
2000	2000-05-22	2000-10-05
2001	2001-05-16	2001-09-08

Every Fixed Threshold

Fixed thresholds at Stilwell 5 NNW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	40	118	1963	81
35 C (95 F): Days	39	74	1980	27
40 C (104 F): Days	11	10	1980	3
90 F (32.2 C): Days	40	93	1980	53
100 F (37.8 C): Days	26	31	1980	2
0 C (32 F): Ice days (max	39	26	1978	5
0 C (32 F): Frost days (min	40	105	1960	79
-10 C (14 F): Days with min	40	24	1963	7
-20 C (-4 F): Days with min	14	3	1983	1
20 C (68 F): Tropical nights (min	40	89	1980	50
25 C (77 F): Days with min	18	13	1980	2
10 mm (0.39 in): Days with 10 mm or more rain	51	58	1973	31
25 mm (0.98 in): Days with 25 mm or more rain	51	28	1973	16
50 mm (1.97 in): Days with 50 mm or more rain	47	10	1973	6
100 mm (3.94 in): Days with 100 mm or more rain	9	2	1990	1
10 cm (3.9 in): Days with 10 cm or more snowfall	27	3	1971	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1989	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 Stilwell 5 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).

Stilwell 5 NNW Threshold Days by Year (USC00348506)

Key Facts for Stilwell 5 NNW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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