Peru 2 WSW Weather Records (USC00306538)

Record envelope, standing records and threshold days for Peru 2 WSW (USC00306538), New York, United States, with 85 years of record.

Key Facts for Peru 2 WSW

Peru 2 WSW (USC00306538) is a weather station in New York, United States at 44.57 latitude and -73.57 longitude, 155 m (510 ft) above sea level.
The station reports from 1938 to 2022, 85 years of record.
1,464 records set at Peru 2 WSW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Peru 2 WSW tied a daily record precipitation of 30.5 mm (1.2 in) on 19 April 2022.

About the Station

Location: New York, United States, 44.57 latitude, -73.57 longitude.
Elevation: 155 m (510 ft).
Period of record: 1938 to 2022, 85 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Peru 2 WSW. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Peru 2 WSW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-36.7 C (-34.1 F)	n/a	n/a
Feb	21.7 C (71.1 F)	-35.0 C (-31.0 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-34.4 C (-29.9 F)	n/a	n/a
Apr	33.3 C (91.9 F)	-15.0 C (5.0 F)	n/a	n/a
May	35.6 C (96.1 F)	-6.7 C (19.9 F)	n/a	n/a
Jun	36.7 C (98.1 F)	-2.2 C (28.0 F)	n/a	n/a
Jul	37.8 C (100.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	38.9 C (102.0 F)	1.1 C (34.0 F)	n/a	n/a
Sep	37.2 C (99.0 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-9.4 C (15.1 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-20.6 C (-5.1 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-36.7 C (-34.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Peru 2 WSW still stand. 1940 holds the most, with 38.

Standing records at Peru 2 WSW by the year they were set
Year set	Standing records
1938	21
1939	29
1940	38
1941	23
1942	23
1943	19
1944	33
1945	33
1946	25
1947	20
1948	29
1949	23
1950	14
1951	21
1952	7
1953	27
1954	17
1955	15
1956	27
1957	16
1958	14
1959	14
1960	5
1961	11
1962	18
1963	19
1964	16
1965	22
1966	19
1967	16
1968	27
1969	14
1970	18
1971	15
1972	11
1973	11
1974	25
1975	13
1976	28
1977	19
1978	9
1979	27
1980	17
1981	31
1982	16
1983	5
1984	16
1985	9
1986	11
1987	22
1988	20
1989	25
1990	25
1991	25
1992	8
1993	19
1994	12
1995	23
1996	13
1997	10
1998	9
1999	16
2000	20
2001	17
2002	27
2003	15
2004	15
2005	13
2006	9
2007	19
2008	9
2009	14
2010	11
2011	9
2012	18
2013	7
2014	12
2015	13
2016	8
2017	17
2018	20
2019	5
2020	4
2021	17
2022	2

All-Time Record Progression

6 new records

6 all-time records were set at Peru 2 WSW between 4 January 1981 and 24 July 2001. Each dot is a new record.

When Peru 2 WSW set new all-time records
Date	Kind	Detail
1981-01-04	Record low maximum temperature	Record low maximum temperature -25.0 C (-13.0 F)
1991-07-20	Record high minimum temperature	Record high minimum temperature 26.7 C (80.1 F)
1995-08-04	Record daily precipitation	Record daily precipitation 83.3 mm (3.3 in)
1996-11-09	Record daily precipitation	Record daily precipitation 121.9 mm (4.8 in)
2001-03-06	Record daily snowfall	Record daily snowfall 71.1 cm (28.0 in)
2001-07-24	Record high minimum temperature	Record high minimum temperature 31.1 C (88.0 F)

Wettest Day of Each Month

Nov: 121.9 mm (4.8 in)

The wettest day on record for each calendar month at Peru 2 WSW. The most was 121.9 mm (4.8 in) on 9 November 1996.

Record daily precipitation for each month at Peru 2 WSW
Month	Record daily precipitation (mm)	Date
Jan	42.9 mm (1.7 in)	20 January 2019
Feb	72.4 mm (2.9 in)	17 February 1954
Mar	66.0 mm (2.6 in)	6 March 2001
Apr	47.0 mm (1.9 in)	25 April 1968
May	61.0 mm (2.4 in)	9 May 2000
Jun	104.1 mm (4.1 in)	27 June 1998
Jul	83.1 mm (3.3 in)	1 July 1998
Aug	114.3 mm (4.5 in)	28 August 2011
Sep	103.6 mm (4.1 in)	17 September 1999
Oct	64.0 mm (2.5 in)	17 October 1977
Nov	121.9 mm (4.8 in)	9 November 1996
Dec	50.8 mm (2.0 in)	12 December 1952

Period of Record Coverage

1938 to 2022

85 years of record at Peru 2 WSW, 1938 to 2022. 12 years have data for under 90 percent of days and are left out of rankings: 1938, 1943, 1944, 1946, 1950, 1985, 1986, 1987 and others.

Days with data per year at Peru 2 WSW
Year	Days with data	Share of year	Complete
1938	291	80%	No
1939	361	99%	Yes
1940	349	95%	Yes
1941	364	100%	Yes
1942	362	99%	Yes
1943	328	90%	No
1944	241	66%	No
1945	365	100%	Yes
1946	303	83%	No
1947	331	91%	Yes
1948	363	99%	Yes
1949	359	98%	Yes
1950	325	89%	No
1951	357	98%	Yes
1952	360	98%	Yes
1953	363	99%	Yes
1954	359	98%	Yes
1955	358	98%	Yes
1956	360	98%	Yes
1957	361	99%	Yes
1958	360	99%	Yes
1959	361	99%	Yes
1960	362	99%	Yes
1961	359	98%	Yes
1962	361	99%	Yes
1963	364	100%	Yes
1964	365	100%	Yes
1965	336	92%	Yes
1966	362	99%	Yes
1967	364	100%	Yes
1968	365	100%	Yes
1969	364	100%	Yes
1970	364	100%	Yes
1971	363	99%	Yes
1972	366	100%	Yes
1973	332	91%	Yes
1974	358	98%	Yes
1975	364	100%	Yes
1976	365	100%	Yes
1977	364	100%	Yes
1978	364	100%	Yes
1979	365	100%	Yes
1980	363	99%	Yes
1981	363	99%	Yes
1982	355	97%	Yes
1983	358	98%	Yes
1984	361	99%	Yes
1985	305	84%	No
1986	304	83%	No
1987	290	79%	No
1988	332	91%	Yes
1989	333	91%	Yes
1990	323	88%	No
1991	295	81%	No
1992	347	95%	Yes
1993	354	97%	Yes
1994	325	89%	No
1995	358	98%	Yes
1996	362	99%	Yes
1997	357	98%	Yes
1998	344	94%	Yes
1999	356	98%	Yes
2000	350	96%	Yes
2001	358	98%	Yes
2002	349	96%	Yes
2003	354	97%	Yes
2004	357	98%	Yes
2005	353	97%	Yes
2006	354	97%	Yes
2007	358	98%	Yes
2008	354	97%	Yes
2009	354	97%	Yes
2010	355	97%	Yes
2011	358	98%	Yes
2012	366	100%	Yes
2013	364	100%	Yes
2014	364	100%	Yes
2015	365	100%	Yes
2016	365	100%	Yes
2017	334	92%	Yes
2018	334	92%	Yes
2019	334	92%	Yes
2020	335	92%	Yes
2021	334	92%	Yes
2022	120	33%	No

Latest Records

Latest records at Peru 2 WSW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 April 2022	Peru 2 WSW, US	daily rain (Tie)	30.5 mm (1.2 in)	tie	24 years	3 of 100 (Routine)
7 April 2022	Peru 2 WSW, US	daily rain (Tie)	25.4 mm (1.0 in)	tie	5 years	2 of 100 (Routine)
20 March 2022	Peru 2 WSW, US	daily high min	6.1 C (43.0 F)	0.5 C (0.9 F)	9 years	10 of 100 (Routine)
6 March 2022	Peru 2 WSW, US	daily high max (Tie)	15.6 C (60.1 F)	tie	48 years	5 of 100 (Routine)
17 February 2022	Peru 2 WSW, US	daily high min (Tie)	2.8 C (37.0 F)	tie	40 years	5 of 100 (Routine)
4 February 2022	Peru 2 WSW, US	daily rain	27.9 mm (1.1 in)	2.5 mm (0.10 in)	50 years	26 of 100 (Routine)
21 January 2022	Peru 2 WSW, US	daily low min	-27.2 C (-17.0 F)	0.5 C (0.9 F)	79 years	31 of 100 (Routine)
17 January 2022	Peru 2 WSW, US	daily snowfall	17.8 cm (7.0 in)	5.1 cm (2.0 in)	63 years	32 of 100 (Routine)
17 January 2022	Peru 2 WSW, US	daily rain	16.5 mm (0.6 in)	3.8 mm (0.15 in)	63 years	20 of 100 (Routine)
17 December 2021	Peru 2 WSW, US	daily high max	17.8 C (64.0 F)	5.0 C (9.0 F)	36 years	27 of 100 (Routine)
17 December 2021	Peru 2 WSW, US	daily high min	3.9 C (39.0 F)	2.8 C (5.0 F)	28 years	19 of 100 (Routine)
16 December 2021	Peru 2 WSW, US	daily high max	11.7 C (53.1 F)	0.6 C (1.1 F)	39 years	20 of 100 (Routine)
13 December 2021	Peru 2 WSW, US	daily high min (Tie)	5.6 C (42.1 F)	tie	30 years	4 of 100 (Routine)
12 December 2021	Peru 2 WSW, US	daily high max	13.9 C (57.0 F)	2.2 C (4.0 F)	6 years	12 of 100 (Routine)
31 October 2021	Peru 2 WSW, US	daily rain	45.0 mm (1.8 in)	25.2 mm (1.0 in)	66 years	51 of 100 (Notable)
21 October 2021	Peru 2 WSW, US	daily high min (Tie)	14.4 C (57.9 F)	tie	26 years	3 of 100 (Routine)
16 October 2021	Peru 2 WSW, US	daily high min	15.0 C (59.0 F)	0.6 C (1.1 F)	58 years	26 of 100 (Routine)
14 October 2021	Peru 2 WSW, US	daily high min	15.0 C (59.0 F)	0.6 C (1.1 F)	51 years	24 of 100 (Routine)
24 September 2021	Peru 2 WSW, US	daily rain	37.1 mm (1.5 in)	22.9 mm (0.9 in)	2 years	27 of 100 (Routine)
23 September 2021	Peru 2 WSW, US	daily high min	20.0 C (68.0 F)	0.6 C (1.1 F)	2 years	9 of 100 (Routine)

Climate Trend

67 complete years, 1939 to 2016

One stripe for each of 67 complete years at Peru 2 WSW, 1939 to 2016. Blue stripes are years cooler than the station's own mean of 7.3 C (45.1 F); red stripes are warmer. The coolest year was 1940, at 5.6 C (42.0 F), and the warmest was 2012, at 9.3 C (48.8 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Peru 2 WSW as warming stripes, 1939 to 2016
Year	Annual mean temperature	Difference from the station mean
1939	6.4 C	-0.89 C
1940	5.6 C	-1.72 C
1941	7.4 C	+0.15 C
1942	7.1 C	-0.18 C
1945	6.3 C	-0.97 C
1948	6.0 C	-1.30 C
1949	7.5 C	+0.18 C
1951	6.4 C	-0.93 C
1952	7.6 C	+0.35 C
1953	8.6 C	+1.35 C
1954	7.0 C	-0.25 C
1955	7.4 C	+0.10 C
1956	6.7 C	-0.58 C
1957	7.6 C	+0.34 C
1958	6.3 C	-0.99 C
1959	7.5 C	+0.18 C
1960	7.2 C	-0.08 C
1961	7.2 C	-0.11 C
1962	6.3 C	-0.95 C
1963	6.7 C	-0.60 C
1964	7.4 C	+0.06 C
1966	7.3 C	0.00 C
1967	6.8 C	-0.53 C
1968	6.5 C	-0.76 C
1969	6.9 C	-0.40 C
1970	6.6 C	-0.65 C
1971	6.7 C	-0.63 C
1972	6.0 C	-1.28 C
1974	6.8 C	-0.50 C
1975	7.8 C	+0.50 C
1976	6.3 C	-1.02 C
1977	7.3 C	+0.05 C
1978	6.1 C	-1.15 C
1979	7.3 C	-0.02 C
1980	6.4 C	-0.89 C
1981	7.4 C	+0.12 C
1982	6.9 C	-0.44 C
1983	7.6 C	+0.27 C
1984	7.4 C	+0.12 C
1986	7.3 C	-0.04 C
1988	7.4 C	+0.14 C
1989	6.7 C	-0.61 C
1990	8.4 C	+1.15 C
1992	6.9 C	-0.44 C
1993	6.7 C	-0.61 C
1995	7.6 C	+0.34 C
1996	7.4 C	+0.07 C
1997	6.8 C	-0.46 C
1998	8.8 C	+1.53 C
1999	8.9 C	+1.62 C
2000	7.7 C	+0.39 C
2001	8.6 C	+1.31 C
2002	8.4 C	+1.12 C
2003	7.2 C	-0.11 C
2004	7.2 C	-0.07 C
2005	7.9 C	+0.61 C
2006	8.7 C	+1.40 C
2007	7.3 C	0.00 C
2008	7.6 C	+0.31 C
2009	7.3 C	0.00 C
2010	8.8 C	+1.52 C
2011	8.4 C	+1.06 C
2012	9.3 C	+2.02 C
2013	7.5 C	+0.23 C
2014	7.1 C	-0.22 C
2015	7.8 C	+0.55 C
2016	8.8 C	+1.48 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1939 to 2016. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 67 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Peru 2 WSW
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.2 to 0.5) per decade	1939 to 2016	67	Rise
Mean daily maximum	0.02 C (-0.06 to 0.10) per decade	0.04 F (-0.11 to 0.19) per decade	1939 to 2016	67	Not clearly different from zero
Mean daily minimum	0.4 C (0.3 to 0.5) per decade	0.7 F (0.5 to 0.8) per decade	1939 to 2016	67	Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1938 to 2022

Yearly extremes at Peru 2 WSW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	1944	34.4 C (93.9 F)	85
Coldest night (TNn)	-36.7 C (-34.1 F)	1942	-27.8 C (-18.0 F)	85
Wettest day (Rx1day)	121.9 mm (4.8 in)	1996	45.0 mm (1.8 in)	85
Wettest five days (Rx5day)	218.4 mm (8.6 in)	1995	64.7 mm (2.5 in)	85
Longest dry spell (CDD)	38 days	1941	18 days	85

Hottest day (TXx)

The hottest day of the year at Peru 2 WSW, 1938 to 2022. The record is 38.9 C (102.0 F) in 1944, marked on the chart; the median year is 34.4 C (93.9 F).

Hottest day (TXx) at Peru 2 WSW by year
Year	Hottest day (TXx)
1938	35.0 C (95.0 F)
1939	37.2 C (99.0 F)
1940	32.2 C (90.0 F)
1941	36.7 C (98.1 F)
1942	35.6 C (96.1 F)
1943	33.3 C (91.9 F)
1944	38.9 C (102.0 F)
1945	35.0 C (95.0 F)
1946	35.0 C (95.0 F)
1947	35.0 C (95.0 F)
1948	35.0 C (95.0 F)
1949	37.8 C (100.0 F)
1950	33.9 C (93.0 F)
1951	31.7 C (89.1 F)
1952	36.1 C (97.0 F)
1953	35.6 C (96.1 F)
1954	32.2 C (90.0 F)
1955	36.7 C (98.1 F)
1956	35.0 C (95.0 F)
1957	34.4 C (93.9 F)
1958	32.8 C (91.0 F)
1959	35.6 C (96.1 F)
1960	34.4 C (93.9 F)
1961	35.0 C (95.0 F)
1962	33.3 C (91.9 F)
1963	35.6 C (96.1 F)
1964	34.4 C (93.9 F)
1965	34.4 C (93.9 F)
1966	36.1 C (97.0 F)
1967	31.1 C (88.0 F)
1968	33.3 C (91.9 F)
1969	33.9 C (93.0 F)
1970	32.2 C (90.0 F)
1971	35.0 C (95.0 F)
1972	32.8 C (91.0 F)
1973	35.0 C (95.0 F)
1974	33.3 C (91.9 F)
1975	37.8 C (100.0 F)
1976	32.2 C (90.0 F)
1977	37.8 C (100.0 F)
1978	33.9 C (93.0 F)
1979	33.9 C (93.0 F)
1980	32.8 C (91.0 F)
1981	35.6 C (96.1 F)
1982	35.0 C (95.0 F)
1983	33.9 C (93.0 F)
1984	32.2 C (90.0 F)
1985	32.2 C (90.0 F)
1986	32.8 C (91.0 F)
1987	35.6 C (96.1 F)
1988	35.6 C (96.1 F)
1989	34.4 C (93.9 F)
1990	32.2 C (90.0 F)
1991	35.6 C (96.1 F)
1992	31.7 C (89.1 F)
1993	35.6 C (96.1 F)
1994	36.1 C (97.0 F)
1995	36.7 C (98.1 F)
1996	32.2 C (90.0 F)
1997	32.8 C (91.0 F)
1998	32.2 C (90.0 F)
1999	36.1 C (97.0 F)
2000	31.7 C (89.1 F)
2001	36.7 C (98.1 F)
2002	35.6 C (96.1 F)
2003	33.9 C (93.0 F)
2004	31.1 C (88.0 F)
2005	35.0 C (95.0 F)
2006	36.1 C (97.0 F)
2007	35.0 C (95.0 F)
2008	32.8 C (91.0 F)
2009	33.3 C (91.9 F)
2010	35.0 C (95.0 F)
2011	35.0 C (95.0 F)
2012	35.0 C (95.0 F)
2013	33.9 C (93.0 F)
2014	33.3 C (91.9 F)
2015	32.8 C (91.0 F)
2016	35.6 C (96.1 F)
2017	32.8 C (91.0 F)
2018	36.1 C (97.0 F)
2019	33.9 C (93.0 F)
2020	35.0 C (95.0 F)
2021	33.9 C (93.0 F)
2022	21.7 C (71.1 F)

Coldest night (TNn)

The coldest night of the year at Peru 2 WSW, 1938 to 2022. The record is -36.7 C (-34.1 F) in 1942, marked on the chart; the median year is -27.8 C (-18.0 F).

Coldest night (TNn) at Peru 2 WSW by year
Year	Coldest night (TNn)
1938	-34.4 C (-29.9 F)
1939	-28.9 C (-20.0 F)
1940	-31.1 C (-24.0 F)
1941	-28.9 C (-20.0 F)
1942	-36.7 C (-34.1 F)
1943	-35.0 C (-31.0 F)
1944	-29.4 C (-20.9 F)
1945	-32.8 C (-27.0 F)
1946	-31.1 C (-24.0 F)
1947	-27.8 C (-18.0 F)
1948	-33.3 C (-27.9 F)
1949	-28.9 C (-20.0 F)
1950	-27.8 C (-18.0 F)
1951	-32.8 C (-27.0 F)
1952	-25.0 C (-13.0 F)
1953	-21.7 C (-7.1 F)
1954	-28.9 C (-20.0 F)
1955	-29.4 C (-20.9 F)
1956	-23.3 C (-9.9 F)
1957	-36.7 C (-34.1 F)
1958	-26.7 C (-16.1 F)
1959	-29.4 C (-20.9 F)
1960	-26.7 C (-16.1 F)
1961	-27.8 C (-18.0 F)
1962	-31.7 C (-25.1 F)
1963	-28.9 C (-20.0 F)
1964	-22.8 C (-9.0 F)
1965	-32.2 C (-26.0 F)
1966	-27.8 C (-18.0 F)
1967	-27.2 C (-17.0 F)
1968	-30.6 C (-23.1 F)
1969	-26.1 C (-15.0 F)
1970	-28.9 C (-20.0 F)
1971	-30.6 C (-23.1 F)
1972	-32.2 C (-26.0 F)
1973	-28.9 C (-20.0 F)
1974	-32.2 C (-26.0 F)
1975	-26.1 C (-15.0 F)
1976	-31.7 C (-25.1 F)
1977	-31.1 C (-24.0 F)
1978	-29.4 C (-20.9 F)
1979	-29.4 C (-20.9 F)
1980	-32.2 C (-26.0 F)
1981	-33.3 C (-27.9 F)
1982	-29.4 C (-20.9 F)
1983	-27.8 C (-18.0 F)
1984	-27.8 C (-18.0 F)
1985	-26.7 C (-16.1 F)
1986	-23.3 C (-9.9 F)
1987	-26.7 C (-16.1 F)
1988	-27.2 C (-17.0 F)
1989	-27.2 C (-17.0 F)
1990	-25.6 C (-14.1 F)
1991	-25.0 C (-13.0 F)
1992	-25.0 C (-13.0 F)
1993	-34.4 C (-29.9 F)
1994	-36.7 C (-34.1 F)
1995	-27.2 C (-17.0 F)
1996	-28.9 C (-20.0 F)
1997	-26.7 C (-16.1 F)
1998	-26.7 C (-16.1 F)
1999	-30.0 C (-22.0 F)
2000	-25.0 C (-13.0 F)
2001	-23.3 C (-9.9 F)
2002	-19.4 C (-2.9 F)
2003	-27.2 C (-17.0 F)
2004	-30.6 C (-23.1 F)
2005	-27.8 C (-18.0 F)
2006	-21.1 C (-6.0 F)
2007	-25.6 C (-14.1 F)
2008	-24.4 C (-11.9 F)
2009	-29.4 C (-20.9 F)
2010	-21.7 C (-7.1 F)
2011	-28.9 C (-20.0 F)
2012	-22.8 C (-9.0 F)
2013	-27.8 C (-18.0 F)
2014	-30.0 C (-22.0 F)
2015	-27.2 C (-17.0 F)
2016	-28.3 C (-18.9 F)
2017	-25.6 C (-14.1 F)
2018	-27.8 C (-18.0 F)
2019	-23.9 C (-11.0 F)
2020	-27.2 C (-17.0 F)
2021	-24.4 C (-11.9 F)
2022	-29.4 C (-20.9 F)

Wettest day (Rx1day)

The wettest day of the year at Peru 2 WSW, 1938 to 2022. The record is 121.9 mm (4.8 in) in 1996, marked on the chart; the median year is 45.0 mm (1.8 in).

Wettest day (Rx1day) at Peru 2 WSW by year
Year	Wettest day (Rx1day)
1938	64.5 mm (2.5 in)
1939	24.6 mm (1.0 in)
1940	44.7 mm (1.8 in)
1941	35.6 mm (1.4 in)
1942	52.1 mm (2.1 in)
1943	50.8 mm (2.0 in)
1944	39.9 mm (1.6 in)
1945	78.7 mm (3.1 in)
1946	39.4 mm (1.6 in)
1947	51.3 mm (2.0 in)
1948	50.0 mm (2.0 in)
1949	76.2 mm (3.0 in)
1950	44.5 mm (1.8 in)
1951	45.2 mm (1.8 in)
1952	50.8 mm (2.0 in)
1953	50.8 mm (2.0 in)
1954	72.4 mm (2.9 in)
1955	41.9 mm (1.6 in)
1956	40.6 mm (1.6 in)
1957	36.8 mm (1.4 in)
1958	55.9 mm (2.2 in)
1959	38.1 mm (1.5 in)
1960	34.3 mm (1.4 in)
1961	43.2 mm (1.7 in)
1962	55.4 mm (2.2 in)
1963	31.8 mm (1.3 in)
1964	34.3 mm (1.4 in)
1965	31.8 mm (1.3 in)
1966	34.3 mm (1.4 in)
1967	35.1 mm (1.4 in)
1968	47.0 mm (1.9 in)
1969	35.1 mm (1.4 in)
1970	36.3 mm (1.4 in)
1971	35.3 mm (1.4 in)
1972	46.7 mm (1.8 in)
1973	34.5 mm (1.4 in)
1974	34.3 mm (1.4 in)
1975	44.5 mm (1.8 in)
1976	38.1 mm (1.5 in)
1977	64.0 mm (2.5 in)
1978	38.9 mm (1.5 in)
1979	69.9 mm (2.8 in)
1980	39.4 mm (1.6 in)
1981	43.2 mm (1.7 in)
1982	44.7 mm (1.8 in)
1983	47.0 mm (1.9 in)
1984	47.0 mm (1.9 in)
1985	50.8 mm (2.0 in)
1986	35.6 mm (1.4 in)
1987	45.0 mm (1.8 in)
1988	50.8 mm (2.0 in)
1989	59.9 mm (2.4 in)
1990	37.8 mm (1.5 in)
1991	38.1 mm (1.5 in)
1992	47.0 mm (1.9 in)
1993	31.0 mm (1.2 in)
1994	33.5 mm (1.3 in)
1995	83.3 mm (3.3 in)
1996	121.9 mm (4.8 in)
1997	39.6 mm (1.6 in)
1998	104.1 mm (4.1 in)
1999	103.6 mm (4.1 in)
2000	61.0 mm (2.4 in)
2001	66.0 mm (2.6 in)
2002	53.8 mm (2.1 in)
2003	41.9 mm (1.6 in)
2004	42.2 mm (1.7 in)
2005	79.0 mm (3.1 in)
2006	51.6 mm (2.0 in)
2007	38.1 mm (1.5 in)
2008	41.9 mm (1.6 in)
2009	27.7 mm (1.1 in)
2010	63.5 mm (2.5 in)
2011	114.3 mm (4.5 in)
2012	54.6 mm (2.1 in)
2013	53.3 mm (2.1 in)
2014	53.3 mm (2.1 in)
2015	42.9 mm (1.7 in)
2016	64.0 mm (2.5 in)
2017	49.3 mm (1.9 in)
2018	39.1 mm (1.5 in)
2019	59.7 mm (2.4 in)
2020	69.9 mm (2.8 in)
2021	45.0 mm (1.8 in)
2022	30.5 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Peru 2 WSW, 1938 to 2022. The record is 218.4 mm (8.6 in) in 1995, marked on the chart; the median year is 64.7 mm (2.5 in).

Wettest five days (Rx5day) at Peru 2 WSW by year
Year	Wettest five days (Rx5day)
1938	112.5 mm (4.4 in)
1939	51.3 mm (2.0 in)
1940	67.5 mm (2.7 in)
1941	51.4 mm (2.0 in)
1942	57.7 mm (2.3 in)
1943	63.8 mm (2.5 in)
1944	58.2 mm (2.3 in)
1945	119.8 mm (4.7 in)
1946	39.4 mm (1.6 in)
1947	67.8 mm (2.7 in)
1948	55.1 mm (2.2 in)
1949	77.5 mm (3.1 in)
1950	89.5 mm (3.5 in)
1951	63.2 mm (2.5 in)
1952	53.8 mm (2.1 in)
1953	59.7 mm (2.4 in)
1954	90.6 mm (3.6 in)
1955	58.7 mm (2.3 in)
1956	52.4 mm (2.1 in)
1957	57.1 mm (2.2 in)
1958	88.9 mm (3.5 in)
1959	56.5 mm (2.2 in)
1960	61.8 mm (2.4 in)
1961	54.1 mm (2.1 in)
1962	70.2 mm (2.8 in)
1963	64.7 mm (2.5 in)
1964	49.8 mm (2.0 in)
1965	48.5 mm (1.9 in)
1966	44.5 mm (1.8 in)
1967	58.5 mm (2.3 in)
1968	63.5 mm (2.5 in)
1969	75.4 mm (3.0 in)
1970	54.8 mm (2.2 in)
1971	50.5 mm (2.0 in)
1972	75.5 mm (3.0 in)
1973	79.8 mm (3.1 in)
1974	44.7 mm (1.8 in)
1975	54.4 mm (2.1 in)
1976	70.8 mm (2.8 in)
1977	75.7 mm (3.0 in)
1978	61.5 mm (2.4 in)
1979	73.7 mm (2.9 in)
1980	70.6 mm (2.8 in)
1981	75.5 mm (3.0 in)
1982	65.1 mm (2.6 in)
1983	90.5 mm (3.6 in)
1984	65.6 mm (2.6 in)
1985	57.2 mm (2.3 in)
1986	52.4 mm (2.1 in)
1987	61.5 mm (2.4 in)
1988	67.3 mm (2.6 in)
1989	64.2 mm (2.5 in)
1990	67.8 mm (2.7 in)
1991	65.8 mm (2.6 in)
1992	54.6 mm (2.1 in)
1993	67.9 mm (2.7 in)
1994	46.2 mm (1.8 in)
1995	218.4 mm (8.6 in)
1996	125.5 mm (4.9 in)
1997	56.6 mm (2.2 in)
1998	202.2 mm (8.0 in)
1999	120.6 mm (4.7 in)
2000	99.3 mm (3.9 in)
2001	87.4 mm (3.4 in)
2002	103.6 mm (4.1 in)
2003	53.2 mm (2.1 in)
2004	85.1 mm (3.4 in)
2005	92.5 mm (3.6 in)
2006	61.5 mm (2.4 in)
2007	69.3 mm (2.7 in)
2008	74.6 mm (2.9 in)
2009	49.1 mm (1.9 in)
2010	86.8 mm (3.4 in)
2011	66.8 mm (2.6 in)
2012	62.5 mm (2.5 in)
2013	132.6 mm (5.2 in)
2014	62.8 mm (2.5 in)
2015	71.0 mm (2.8 in)
2016	67.8 mm (2.7 in)
2017	66.3 mm (2.6 in)
2018	55.4 mm (2.2 in)
2019	59.7 mm (2.4 in)
2020	83.4 mm (3.3 in)
2021	55.9 mm (2.2 in)
2022	38.1 mm (1.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Peru 2 WSW, 1938 to 2022. The record is 38 days in 1941, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Peru 2 WSW by year
Year	Longest dry spell (CDD)
1938	11 days
1939	26 days
1940	11 days
1941	38 days
1942	16 days
1943	14 days
1944	19 days
1945	18 days
1946	23 days
1947	21 days
1948	17 days
1949	21 days
1950	14 days
1951	23 days
1952	26 days
1953	16 days
1954	14 days
1955	27 days
1956	19 days
1957	28 days
1958	12 days
1959	20 days
1960	12 days
1961	33 days
1962	12 days
1963	32 days
1964	18 days
1965	32 days
1966	14 days
1967	30 days
1968	31 days
1969	19 days
1970	18 days
1971	17 days
1972	12 days
1973	17 days
1974	12 days
1975	23 days
1976	12 days
1977	17 days
1978	22 days
1979	25 days
1980	24 days
1981	14 days
1982	15 days
1983	26 days
1984	23 days
1985	18 days
1986	17 days
1987	19 days
1988	29 days
1989	17 days
1990	18 days
1991	18 days
1992	14 days
1993	15 days
1994	19 days
1995	26 days
1996	13 days
1997	14 days
1998	14 days
1999	15 days
2000	12 days
2001	29 days
2002	13 days
2003	18 days
2004	16 days
2005	15 days
2006	21 days
2007	16 days
2008	17 days
2009	15 days
2010	23 days
2011	11 days
2012	22 days
2013	20 days
2014	15 days
2015	31 days
2016	13 days
2017	22 days
2018	17 days
2019	24 days
2020	19 days
2021	24 days
2022	18 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

67 years with a frost

Across 67 years with a frost, the median last spring frost at Peru 2 WSW falls on 13 May and the median first autumn frost on 30 September, which leaves a median of 144 days between them.

In 1983 to 2016 the median growing season was 150 days. That is 16 days more than in 1939 to 1975.

Fitted over all years, the growing season changes by +4.1 days per decade at this station.

Frost dates and growing season at Peru 2 WSW
Measure	Median, all years	Earliest period (1939 to 1975)	Recent period (1983 to 2016)	Recent against earliest	Fitted trend
Last spring frost	13 May	15 May	8 May	7 days earlier	-1.6 days per decade
First autumn frost	30 September	25 September	5 October	10 days later	+2.5 days per decade
Growing days	144 days	134 days	150 days	16 days more	+4.1 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

69 years, 1939 to 2020

A day with at least 45.6 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 122.9 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Peru 2 WSW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	45.6 mm (1.8 in)
5 years	60.5 mm (2.4 in)
10 years	72.4 mm (2.9 in)
25 years	90.0 mm (3.5 in)
50 years	105.4 mm (4.1 in)
100 years	122.9 mm (4.8 in)	Longer than the 69 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 69 years of values from 1939 to 2020.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 121.9 mm (4.8 in) in 1996; 104.1 mm (4.1 in) in 1998; 103.6 mm (4.1 in) in 1999.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2002 to 2016 against 1961 to 1990

Over 2002 to 2016, Peru 2 WSW had a mean temperature of 8.0 C (46.3 F) and 766.9 mm (30.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Central Michigan UNIV (United States, 900 km away), Saginaw Mbs Intl AP (United States, 847 km away) and Alma (United States, 895 km away).

Climate twins of Peru 2 WSW: stations whose 1961 to 1990 climate is closest to its 2002 to 2016 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Central Michigan UNIV	United States	900 km (559 mi)	8.1 C (46.6 F)	791.1 mm (31.1 in)	0.47
Saginaw Mbs Intl AP	United States	847 km (526 mi)	8.2 C (46.7 F)	773.1 mm (30.4 in)	0.48
Alma	United States	895 km (556 mi)	8.2 C (46.8 F)	789.9 mm (31.1 in)	0.52

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Peru 2 WSW standing records by year: CSV or JSON. Field meanings are on the data page.
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).