Peru 2 WSW Threshold Days by Year (USC00306538)

18 fixed thresholds counted per year at Peru 2 WSW (USC00306538): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Peru 2 WSW Thresholds

Peru 2 WSW: nights with a minimum temperature at or below 0 C (32 F) in 77 years, most in 1939 with 196.
Peru 2 WSW: nights with a minimum temperature at or below -10 C (14 F) in 77 years, most in 1940 with 89.
Peru 2 WSW: nights with a minimum temperature at or below -20 C (-4 F) in 76 years, most in 1945 with 32.
Peru 2 WSW: days with a maximum temperature at or above 30 C (86 F) in 73 years, most in 1949 with 46.
18 fixed thresholds have at least one qualifying day at Peru 2 WSW.

Days at or above 30 C (86 F)

73 years with a qualifying day

Days per year at Peru 2 WSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 1949.

Days at or above 30 C (86 F) per year at Peru 2 WSW
Year	Days	Decade average
1939	42	42
1940	18	30.4
1941	41	30.4
1942	28	30.4
1945	34	30.4
1947	28	30.4
1948	18	30.4
1949	46	30.4
1951	8	21.8
1952	31	21.8
1953	31	21.8
1954	7	21.8
1955	38	21.8
1956	10	21.8
1957	18	21.8
1958	7	21.8
1959	46	21.8
1960	13	14.6
1961	16	14.6
1962	12	14.6
1963	18	14.6
1964	17	14.6
1965	10	14.6
1966	26	14.6
1967	8	14.6
1968	12	14.6
1969	14	14.6
1970	24	19
1971	23	19
1972	7	19
1973	22	19
1974	10	19
1975	28	19
1976	13	19
1977	16	19
1978	23	19
1979	24	19
1980	19	19.4
1981	17	19.4
1982	10	19.4
1983	29	19.4
1984	19	19.4
1988	27	19.4
1989	15	19.4
1992	12	19.4
1993	15	19.4
1995	31	19.4
1996	6	19.4
1997	23	19.4
1998	13	19.4
1999	36	19.4
2000	8	19.7
2001	30	19.7
2002	33	19.7
2003	16	19.7
2004	6	19.7
2005	34	19.7
2006	20	19.7
2007	28	19.7
2008	9	19.7
2009	13	19.7
2010	30	24.3
2011	22	24.3
2012	36	24.3
2013	18	24.3
2014	10	24.3
2015	28	24.3
2016	34	24.3
2017	16	24.3
2018	33	24.3
2019	16	24.3
2020	29	29
2021	29	29

For each year, a bar from the first to the last day at Peru 2 WSW meeting 30 C (86 F).

First to last qualifying date each year at Peru 2 WSW
Year	First date	Last date
1939	1939-05-08	1939-10-06
1940	1940-04-30	1940-08-18
1941	1941-04-19	1941-09-23
1942	1942-05-14	1942-09-19
1945	1945-06-11	1945-09-09
1947	1947-06-11	1947-09-12
1948	1948-06-29	1948-09-13
1949	1949-05-04	1949-10-11
1951	1951-06-19	1951-09-13
1952	1952-06-17	1952-09-13
1953	1953-05-10	1953-09-05
1954	1954-06-01	1954-08-25
1955	1955-06-18	1955-09-19
1956	1956-05-22	1956-08-18
1957	1957-06-01	1957-09-22
1958	1958-07-01	1958-09-01
1959	1959-05-22	1959-09-29
1960	1960-06-17	1960-09-09
1961	1961-05-14	1961-09-23
1962	1962-04-28	1962-08-20
1963	1963-06-25	1963-07-30
1964	1964-05-07	1964-08-31
1965	1965-06-07	1965-09-22
1966	1966-05-27	1966-08-30
1967	1967-06-04	1967-07-02
1968	1968-07-01	1968-08-25
1969	1969-05-17	1969-09-01
1970	1970-06-02	1970-09-22
1971	1971-05-19	1971-09-05
1972	1972-06-15	1972-07-21
1973	1973-06-11	1973-09-05
1974	1974-05-15	1974-08-22
1975	1975-05-20	1975-08-26
1976	1976-04-18	1976-08-22
1977	1977-05-17	1977-08-30
1978	1978-05-27	1978-09-06
1979	1979-05-09	1979-08-04
1980	1980-06-14	1980-08-08
1981	1981-06-16	1981-08-03
1982	1982-07-07	1982-07-26
1983	1983-06-12	1983-09-20
1984	1984-06-07	1984-08-29
1988	1988-06-12	1988-08-13
1989	1989-05-19	1989-09-10
1992	1992-05-22	1992-09-18
1993	1993-06-25	1993-09-14
1995	1995-05-31	1995-08-22
1996	1996-06-11	1996-09-04
1997	1997-06-10	1997-08-16
1998	1998-06-21	1998-08-25
1999	1999-05-30	1999-09-05
2000	2000-05-07	2000-09-01
2001	2001-05-02	2001-09-09
2002	2002-04-16	2002-09-14
2003	2003-06-24	2003-08-21
2004	2004-05-14	2004-07-23
2005	2005-06-10	2005-09-14
2006	2006-06-18	2006-08-19
2007	2007-05-10	2007-09-26
2008	2008-06-07	2008-09-14
2009	2009-04-25	2009-08-19
2010	2010-05-25	2010-09-24
2011	2011-06-01	2011-09-04
2012	2012-04-16	2012-08-26
2013	2013-05-30	2013-09-11
2014	2014-06-29	2014-09-05
2015	2015-05-05	2015-09-09
2016	2016-05-27	2016-09-10
2017	2017-05-17	2017-09-28
2018	2018-05-30	2018-09-18
2019	2019-06-09	2019-07-30
2020	2020-05-26	2020-08-13
2021	2021-05-20	2021-08-27

Every Fixed Threshold

Fixed thresholds at Peru 2 WSW
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	73	46	1949	29
35 C (95 F): Days	36	9	1949	1
90 F (32.2 C): Days	68	27	1949	13
100 F (37.8 C): Days	3	1	1949	1
0 C (32 F): Ice days (max	73	83	1978	56
0 C (32 F): Frost days (min	77	196	1939	121
-10 C (14 F): Days with min	77	89	1940	36
-20 C (-4 F): Days with min	76	32	1945	5
-30 C (-22 F): Days with min	21	7	1948	1
20 C (68 F): Tropical nights (min	69	17	2002	15
25 C (77 F): Days with min	2	2	2001	1
10 mm (0.39 in): Days with 10 mm or more rain	69	34	1958	20
25 mm (0.98 in): Days with 25 mm or more rain	68	14	2005	4
50 mm (1.97 in): Days with 50 mm or more rain	28	4	1998	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1996	1
10 cm (3.9 in): Days with 10 cm or more snowfall	62	10	1993	3
25 cm (9.8 in): Days with 25 cm or more snowfall	31	3	1958	1
50 cm (19.7 in): Days with 50 cm or more snowfall	6	1	1954	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

Data for Peru 2 WSW 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).

Peru 2 WSW Threshold Days by Year (USC00306538)

Key Facts for Peru 2 WSW Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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