Rogers Pass 9 NNE Threshold Days by Year (USC00247159)

17 fixed thresholds counted per year at Rogers Pass 9 NNE (USC00247159): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rogers Pass 9 NNE Thresholds

Rogers Pass 9 NNE: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1968 with 26.
Rogers Pass 9 NNE: days with a maximum temperature at or above 30 C (86 F) in 43 years, most in 1967 with 60.
Rogers Pass 9 NNE: days with a maximum temperature at or below 0 C (32 F) in 43 years, most in 1978 with 73.
Rogers Pass 9 NNE: nights with a minimum temperature at or below 0 C (32 F) in 43 years, most in 1972 with 207.
17 fixed thresholds have at least one qualifying day at Rogers Pass 9 NNE.

Days at or above 30 C (86 F)

43 years with a qualifying day

Days per year at Rogers Pass 9 NNE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1967.

Days at or above 30 C (86 F) per year at Rogers Pass 9 NNE
Year	Days	Decade average
1965	12	33.2
1966	53	33.2
1967	60	33.2
1968	14	33.2
1969	27	33.2
1970	46	25.6
1971	34	25.6
1972	20	25.6
1973	37	25.6
1974	27	25.6
1975	11	25.6
1976	25	25.6
1977	19	25.6
1978	16	25.6
1979	21	25.6
1981	28	28.8
1982	21	28.8
1983	18	28.8
1988	55	28.8
1989	22	28.8
1993	2	20.3
1998	35	20.3
1999	24	20.3
2000	33	29.4
2001	30	29.4
2002	20	29.4
2003	44	29.4
2005	27	29.4
2006	34	29.4
2007	42	29.4
2008	18	29.4
2009	17	29.4
2010	15	27.9
2011	29	27.9
2013	39	27.9
2014	25	27.9
2015	31	27.9
2016	28	27.9
2017	42	27.9
2018	21	27.9
2019	21	27.9
2020	24	32
2021	40	32

For each year, a bar from the first to the last day at Rogers Pass 9 NNE meeting 30 C (86 F).

First to last qualifying date each year at Rogers Pass 9 NNE
Year	First date	Last date
1965	1965-06-11	1965-08-17
1966	1966-06-17	1966-09-23
1967	1967-06-30	1967-09-28
1968	1968-06-19	1968-09-11
1969	1969-06-06	1969-09-02
1970	1970-06-03	1970-08-29
1971	1971-06-23	1971-08-28
1972	1972-05-31	1972-08-30
1973	1973-06-22	1973-08-22
1974	1974-06-15	1974-08-26
1975	1975-07-05	1975-08-06
1976	1976-06-30	1976-09-06
1977	1977-06-02	1977-08-20
1978	1978-07-15	1978-09-04
1979	1979-06-12	1979-09-16
1981	1981-06-30	1981-09-19
1982	1982-07-21	1982-09-06
1983	1983-07-06	1983-09-01
1988	1988-06-03	1988-09-06
1989	1989-06-30	1989-08-14
1993	1993-07-30	1993-08-10
1998	1998-07-10	1998-09-18
1999	1999-07-08	1999-08-31
2000	2000-07-01	2000-09-17
2001	2001-05-13	2001-09-26
2002	2002-06-26	2002-09-15
2003	2003-05-27	2003-09-07
2005	2005-06-21	2005-08-29
2006	2006-05-16	2006-08-29
2007	2007-06-20	2007-09-03
2008	2008-05-17	2008-08-25
2009	2009-07-17	2009-09-25
2010	2010-06-28	2010-10-04
2011	2011-06-28	2011-09-30
2013	2013-06-28	2013-09-05
2014	2014-07-02	2014-09-25
2015	2015-06-08	2015-09-25
2016	2016-06-05	2016-09-01
2017	2017-06-26	2017-09-12
2018	2018-07-06	2018-08-17
2019	2019-07-13	2019-09-04
2020	2020-06-12	2020-09-05
2021	2021-06-03	2021-09-08

Every Fixed Threshold

Fixed thresholds at Rogers Pass 9 NNE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	43	60	1967	40
35 C (95 F): Days	25	11	2000	2
90 F (32.2 C): Days	42	27	1967	24
100 F (37.8 C): Days	4	1	1969	1
0 C (32 F): Ice days (max	43	73	1978	39
0 C (32 F): Frost days (min	43	207	1972	174
-10 C (14 F): Days with min	43	80	1975	47
-20 C (-4 F): Days with min	43	31	2017	22
-30 C (-22 F): Days with min	33	9	1972	9
-40 C (-40 F): Days with min	2	2	2019	2
20 C (68 F): Tropical nights (min	7	5	1966	3
10 mm (0.39 in): Days with 10 mm or more rain	44	26	1968	11
25 mm (0.98 in): Days with 25 mm or more rain	39	6	1975	2
50 mm (1.97 in): Days with 50 mm or more rain	9	2	1975	2
10 cm (3.9 in): Days with 10 cm or more snowfall	21	23	1982	3
25 cm (9.8 in): Days with 25 cm or more snowfall	12	9	1982	1
50 cm (19.7 in): Days with 50 cm or more snowfall	3	1	1968	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

Data for Rogers Pass 9 NNE 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).

Rogers Pass 9 NNE Threshold Days by Year (USC00247159)

Key Facts for Rogers Pass 9 NNE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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