Aitkin 2E Weather Records (USC00210059)

Record envelope, standing records and threshold days for Aitkin 2E (USC00210059), Minnesota, United States, with 83 years of record.

Key Facts for Aitkin 2E

Aitkin 2E (USC00210059) is a weather station in Minnesota, United States at 46.53 latitude and -93.67 longitude, 370 m (1,215 ft) above sea level.
The station reports from 1940 to 2022, 83 years of record.
1,464 records set at Aitkin 2E still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Aitkin 2E tied a daily record low maximum temperature of 17.8 C (64.0 F) on 29 July 2022.

About the Station

Location: Minnesota, United States, 46.53 latitude, -93.67 longitude.
Elevation: 370 m (1,215 ft).
Period of record: 1940 to 2022, 83 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 Aitkin 2E. 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 Aitkin 2E, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.2 C (54.0 F)	-43.9 C (-47.0 F)	n/a	n/a
Feb	13.9 C (57.0 F)	-41.7 C (-43.1 F)	n/a	n/a
Mar	25.0 C (77.0 F)	-38.3 C (-36.9 F)	n/a	n/a
Apr	32.2 C (90.0 F)	-18.3 C (-0.9 F)	n/a	n/a
May	33.9 C (93.0 F)	-7.8 C (18.0 F)	n/a	n/a
Jun	36.1 C (97.0 F)	-2.8 C (27.0 F)	n/a	n/a
Jul	36.7 C (98.1 F)	2.8 C (37.0 F)	n/a	n/a
Aug	37.8 C (100.0 F)	0.6 C (33.1 F)	n/a	n/a
Sep	36.7 C (98.1 F)	-7.2 C (19.0 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-12.8 C (9.0 F)	n/a	n/a
Nov	23.9 C (75.0 F)	-30.0 C (-22.0 F)	n/a	n/a
Dec	15.6 C (60.1 F)	-41.1 C (-42.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Aitkin 2E still stand. 1976 holds the most, with 52.

Standing records at Aitkin 2E by the year they were set
Year set	Standing records
1958	2
1959	34
1960	21
1961	41
1962	32
1963	32
1964	21
1965	33
1966	21
1967	26
1968	34
1969	14
1970	25
1971	24
1972	30
1973	24
1974	25
1975	20
1976	52
1977	28
1978	22
1979	14
1980	19
1981	23
1982	12
1983	21
1984	15
1985	31
1986	18
1987	3
1988	38
1989	32
1990	26
1991	31
1992	33
1993	19
1994	29
1995	24
1996	33
1997	30
1998	29
1999	20
2000	21
2001	26
2002	19
2003	26
2004	17
2005	22
2006	1
2008	5
2009	30
2010	16
2011	17
2012	22
2013	9
2014	17
2015	20
2016	14
2017	18
2018	14
2019	9
2020	31
2021	37
2022	12

Wettest Day of Each Month

Jul: 134.4 mm (5.3 in)

The wettest day on record for each calendar month at Aitkin 2E. The most was 134.4 mm (5.3 in) on 18 July 1952.

Record daily precipitation for each month at Aitkin 2E
Month	Record daily precipitation (mm)	Date
Jan	25.4 mm (1.0 in)	5 January 1997
Feb	50.8 mm (2.0 in)	20 February 2018
Mar	45.7 mm (1.8 in)	24 March 2009
Apr	69.6 mm (2.7 in)	23 April 2001
May	78.5 mm (3.1 in)	31 May 1959
Jun	111.8 mm (4.4 in)	20 June 2012
Jul	134.4 mm (5.3 in)	18 July 1952
Aug	110.5 mm (4.4 in)	30 August 1941
Sep	103.4 mm (4.1 in)	3 September 1980
Oct	74.7 mm (2.9 in)	10 October 1973
Nov	46.7 mm (1.8 in)	1 November 1974
Dec	38.1 mm (1.5 in)	16 December 2021

Period of Record Coverage

1958 to 2022

64 years of record at Aitkin 2E, 1958 to 2022. 31 years have data for under 90 percent of days and are left out of rankings: 1958, 1964, 1966, 1967, 1968, 1969, 1970, 1971 and others.

Days with data per year at Aitkin 2E
Year	Days with data	Share of year	Complete
1958	79	22%	No
1959	358	98%	Yes
1960	357	98%	Yes
1961	364	100%	Yes
1962	346	95%	Yes
1963	346	95%	Yes
1964	309	84%	No
1965	364	100%	Yes
1966	325	89%	No
1967	318	87%	No
1968	255	70%	No
1969	232	64%	No
1970	302	83%	No
1971	315	86%	No
1972	349	95%	Yes
1973	354	97%	Yes
1974	356	98%	Yes
1975	302	83%	No
1976	354	97%	Yes
1977	326	89%	No
1978	347	95%	Yes
1979	245	67%	No
1980	244	67%	No
1981	330	90%	Yes
1982	312	85%	No
1983	272	75%	No
1984	290	79%	No
1985	363	99%	Yes
1986	364	100%	Yes
1987	59	16%	No
1988	352	96%	Yes
1989	341	93%	Yes
1990	327	90%	No
1991	291	80%	No
1992	360	98%	Yes
1993	357	98%	Yes
1994	364	100%	Yes
1995	363	99%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	364	100%	Yes
2000	303	83%	No
2001	333	91%	Yes
2002	365	100%	Yes
2003	333	91%	Yes
2004	363	99%	Yes
2005	334	92%	Yes
2006	28	8%	No
2008	92	25%	No
2009	363	99%	Yes
2010	346	95%	Yes
2011	314	86%	No
2012	262	72%	No
2013	89	24%	No
2014	244	67%	No
2015	292	80%	No
2016	304	83%	No
2017	249	68%	No
2018	218	60%	No
2019	182	50%	No
2020	360	98%	Yes
2021	364	100%	Yes
2022	209	57%	No

Latest Records

Latest records at Aitkin 2E
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 July 2022	Aitkin 2E, US	daily low max (Tie)	17.8 C (64.0 F)	tie	32 years	3 of 100 (Routine)
18 July 2022	Aitkin 2E, US	daily high max (Tie)	32.8 C (91.0 F)	tie	52 years	5 of 100 (Routine)
10 July 2022	Aitkin 2E, US	daily high min (Tie)	18.9 C (66.0 F)	tie	45 years	4 of 100 (Routine)
4 July 2022	Aitkin 2E, US	daily high min (Tie)	18.9 C (66.0 F)	tie	23 years	3 of 100 (Routine)
21 June 2022	Aitkin 2E, US	daily rain	66.0 mm (2.6 in)	35.5 mm (1.4 in)	68 years	55 of 100 (Notable)
21 June 2022	Aitkin 2E, US	daily high min	20.0 C (68.0 F)	2.8 C (5.0 F)	47 years	26 of 100 (Routine)
21 June 2022	Aitkin 2E, US	daily high max	33.3 C (91.9 F)	0.5 C (0.9 F)	27 years	15 of 100 (Routine)
20 June 2022	Aitkin 2E, US	daily high max (Tie)	33.3 C (91.9 F)	tie	36 years	4 of 100 (Routine)
16 June 2022	Aitkin 2E, US	daily high min	18.9 C (66.0 F)	0.6 C (1.1 F)	27 years	15 of 100 (Routine)
15 June 2022	Aitkin 2E, US	daily high min (Tie)	17.8 C (64.0 F)	tie	48 years	5 of 100 (Routine)
23 May 2022	Aitkin 2E, US	daily low max (Tie)	8.9 C (48.0 F)	tie	3 years	1 of 100 (Routine)
22 May 2022	Aitkin 2E, US	daily low max	6.1 C (43.0 F)	6.7 C (12.1 F)	4 years	18 of 100 (Routine)
21 May 2022	Aitkin 2E, US	daily low max	9.4 C (48.9 F)	0.6 C (1.1 F)	63 years	25 of 100 (Routine)
13 May 2022	Aitkin 2E, US	daily rain	43.7 mm (1.7 in)	7.9 mm (0.31 in)	23 years	21 of 100 (Routine)
28 April 2022	Aitkin 2E, US	daily low min	-8.3 C (17.1 F)	2.2 C (4.0 F)	25 years	17 of 100 (Routine)
27 April 2022	Aitkin 2E, US	daily low min	-8.3 C (17.1 F)	0.5 C (0.9 F)	25 years	14 of 100 (Routine)
27 April 2022	Aitkin 2E, US	daily low max	1.7 C (35.1 F)	2.2 C (4.0 F)	0 years	9 of 100 (Routine)
26 April 2022	Aitkin 2E, US	daily low max	-0.6 C (30.9 F)	4.5 C (8.1 F)	28 years	20 of 100 (Routine)
26 April 2022	Aitkin 2E, US	daily low min (Tie)	-5.0 C (23.0 F)	tie	45 years	4 of 100 (Routine)
19 April 2022	Aitkin 2E, US	daily low min	-8.9 C (16.0 F)	2.2 C (4.0 F)	33 years	20 of 100 (Routine)

Climate Trend

29 complete years, 1959 to 2021

One stripe for each of 29 complete years at Aitkin 2E, 1959 to 2021. Blue stripes are years cooler than the station's own mean of 4.8 C (40.6 F); red stripes are warmer. The coolest year was 1996, at 2.5 C (36.4 F), and the warmest was 1998, at 6.7 C (44.0 F). The strongest colour marks a difference of 2.4 C (4.3 F).

Annual mean temperature at Aitkin 2E as warming stripes, 1959 to 2021
Year	Annual mean temperature	Difference from the station mean
1959	5.0 C	+0.18 C
1960	4.7 C	-0.13 C
1961	5.3 C	+0.50 C
1963	5.3 C	+0.51 C
1965	4.0 C	-0.84 C
1966	4.3 C	-0.48 C
1967	4.6 C	-0.20 C
1972	3.4 C	-1.38 C
1973	6.1 C	+1.31 C
1974	5.0 C	+0.25 C
1976	4.8 C	-0.02 C
1978	4.5 C	-0.29 C
1981	5.6 C	+0.78 C
1985	3.5 C	-1.28 C
1986	5.0 C	+0.21 C
1988	4.6 C	-0.24 C
1989	3.5 C	-1.26 C
1992	4.7 C	-0.12 C
1994	4.3 C	-0.53 C
1995	3.8 C	-0.98 C
1996	2.5 C	-2.32 C
1997	4.2 C	-0.63 C
1998	6.7 C	+1.89 C
1999	6.2 C	+1.40 C
2002	4.8 C	+0.04 C
2004	4.7 C	-0.09 C
2010	6.0 C	+1.25 C
2020	5.5 C	+0.69 C
2021	6.6 C	+1.79 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1940 to 2022

Yearly extremes at Aitkin 2E: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	1976	32.8 C (91.0 F)	64
Coldest night (TNn)	-43.9 C (-47.0 F)	1972	-33.9 C (-29.0 F)	64
Wettest day (Rx1day)	134.4 mm (5.3 in)	1952	55.2 mm (2.2 in)	82
Wettest five days (Rx5day)	329.5 mm (13.0 in)	1952	90.7 mm (3.6 in)	82
Longest dry spell (CDD)	46 days	1943	22 days	82

Hottest day (TXx)

The hottest day of the year at Aitkin 2E, 1940 to 2022. The record is 37.8 C (100.0 F) in 1976, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at Aitkin 2E by year
Year	Hottest day (TXx)
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	23.3 C (73.9 F)
1959	33.9 C (93.0 F)
1960	35.0 C (95.0 F)
1961	36.1 C (97.0 F)
1962	31.1 C (88.0 F)
1963	33.9 C (93.0 F)
1964	33.3 C (91.9 F)
1965	32.2 C (90.0 F)
1966	33.9 C (93.0 F)
1967	30.6 C (87.1 F)
1968	31.7 C (89.1 F)
1969	32.2 C (90.0 F)
1970	34.4 C (93.9 F)
1971	32.8 C (91.0 F)
1972	33.3 C (91.9 F)
1973	32.8 C (91.0 F)
1974	34.4 C (93.9 F)
1975	33.9 C (93.0 F)
1976	37.8 C (100.0 F)
1977	33.9 C (93.0 F)
1978	33.9 C (93.0 F)
1979	31.7 C (89.1 F)
1980	36.1 C (97.0 F)
1981	32.8 C (91.0 F)
1982	33.9 C (93.0 F)
1983	33.3 C (91.9 F)
1984	35.6 C (96.1 F)
1985	32.8 C (91.0 F)
1986	33.3 C (91.9 F)
1987	14.4 C (57.9 F)
1988	36.7 C (98.1 F)
1989	33.3 C (91.9 F)
1990	35.6 C (96.1 F)
1991	32.2 C (90.0 F)
1992	30.6 C (87.1 F)
1993	30.6 C (87.1 F)
1994	33.3 C (91.9 F)
1995	32.8 C (91.0 F)
1996	32.2 C (90.0 F)
1997	31.7 C (89.1 F)
1998	32.2 C (90.0 F)
1999	33.9 C (93.0 F)
2000	32.8 C (91.0 F)
2001	34.4 C (93.9 F)
2002	33.3 C (91.9 F)
2003	32.8 C (91.0 F)
2004	32.8 C (91.0 F)
2005	33.9 C (93.0 F)
2006	3.9 C (39.0 F)
2008	21.1 C (70.0 F)
2009	30.6 C (87.1 F)
2010	33.3 C (91.9 F)
2011	33.9 C (93.0 F)
2012	32.8 C (91.0 F)
2013	22.2 C (72.0 F)
2014	32.2 C (90.0 F)
2015	33.9 C (93.0 F)
2016	32.8 C (91.0 F)
2017	32.2 C (90.0 F)
2018	31.7 C (89.1 F)
2019	31.1 C (88.0 F)
2020	32.8 C (91.0 F)
2021	36.1 C (97.0 F)
2022	33.3 C (91.9 F)

Coldest night (TNn)

The coldest night of the year at Aitkin 2E, 1940 to 2022. The record is -43.9 C (-47.0 F) in 1972, marked on the chart; the median year is -33.9 C (-29.0 F).

Coldest night (TNn) at Aitkin 2E by year
Year	Coldest night (TNn)
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	-26.1 C (-15.0 F)
1959	-33.3 C (-27.9 F)
1960	-31.1 C (-24.0 F)
1961	-33.3 C (-27.9 F)
1962	-38.3 C (-36.9 F)
1963	-35.0 C (-31.0 F)
1964	-30.6 C (-23.1 F)
1965	-38.3 C (-36.9 F)
1966	-35.6 C (-32.1 F)
1967	-35.6 C (-32.1 F)
1968	-36.1 C (-33.0 F)
1969	-27.8 C (-18.0 F)
1970	-36.7 C (-34.1 F)
1971	-34.4 C (-29.9 F)
1972	-43.9 C (-47.0 F)
1973	-35.6 C (-32.1 F)
1974	-33.9 C (-29.0 F)
1975	-31.7 C (-25.1 F)
1976	-37.2 C (-35.0 F)
1977	-39.4 C (-38.9 F)
1978	-33.9 C (-29.0 F)
1979	-38.9 C (-38.0 F)
1980	-36.7 C (-34.1 F)
1981	-33.9 C (-29.0 F)
1982	-38.9 C (-38.0 F)
1983	-41.1 C (-42.0 F)
1984	-36.7 C (-34.1 F)
1985	-35.0 C (-31.0 F)
1986	-32.8 C (-27.0 F)
1987	-18.9 C (-2.0 F)
1988	-35.6 C (-32.1 F)
1989	-36.7 C (-34.1 F)
1990	-32.8 C (-27.0 F)
1991	-30.6 C (-23.1 F)
1992	-31.7 C (-25.1 F)
1993	-33.3 C (-27.9 F)
1994	-38.3 C (-36.9 F)
1995	-30.6 C (-23.1 F)
1996	-41.7 C (-43.1 F)
1997	-35.6 C (-32.1 F)
1998	-30.6 C (-23.1 F)
1999	-30.0 C (-22.0 F)
2000	-28.9 C (-20.0 F)
2001	-29.4 C (-20.9 F)
2002	-25.0 C (-13.0 F)
2003	-27.8 C (-18.0 F)
2004	-36.1 C (-33.0 F)
2005	-36.7 C (-34.1 F)
2006	-28.9 C (-20.0 F)
2008	-29.4 C (-20.9 F)
2009	-33.9 C (-29.0 F)
2010	-33.9 C (-29.0 F)
2011	-35.6 C (-32.1 F)
2012	-28.9 C (-20.0 F)
2013	-30.6 C (-23.1 F)
2014	-23.3 C (-9.9 F)
2015	-31.1 C (-24.0 F)
2016	-30.0 C (-22.0 F)
2017	-32.8 C (-27.0 F)
2018	-32.8 C (-27.0 F)
2019	-38.3 C (-36.9 F)
2020	-30.0 C (-22.0 F)
2021	-33.9 C (-29.0 F)
2022	-33.3 C (-27.9 F)

Wettest day (Rx1day)

The wettest day of the year at Aitkin 2E, 1940 to 2022. The record is 134.4 mm (5.3 in) in 1952, marked on the chart; the median year is 55.2 mm (2.2 in).

Wettest day (Rx1day) at Aitkin 2E by year
Year	Wettest day (Rx1day)
1940	43.2 mm (1.7 in)
1941	110.5 mm (4.4 in)
1942	62.0 mm (2.4 in)
1943	67.3 mm (2.6 in)
1944	65.3 mm (2.6 in)
1945	97.3 mm (3.8 in)
1946	64.8 mm (2.6 in)
1947	47.5 mm (1.9 in)
1948	81.5 mm (3.2 in)
1949	75.4 mm (3.0 in)
1950	45.5 mm (1.8 in)
1951	85.3 mm (3.4 in)
1952	134.4 mm (5.3 in)
1953	67.6 mm (2.7 in)
1954	38.4 mm (1.5 in)
1955	58.7 mm (2.3 in)
1956	48.0 mm (1.9 in)
1957	49.5 mm (1.9 in)
1958	55.9 mm (2.2 in)
1959	78.5 mm (3.1 in)
1960	48.8 mm (1.9 in)
1961	38.9 mm (1.5 in)
1962	75.7 mm (3.0 in)
1963	104.6 mm (4.1 in)
1964	92.7 mm (3.6 in)
1965	66.5 mm (2.6 in)
1966	61.7 mm (2.4 in)
1967	24.4 mm (1.0 in)
1968	32.3 mm (1.3 in)
1969	36.8 mm (1.4 in)
1970	34.5 mm (1.4 in)
1971	43.2 mm (1.7 in)
1972	48.3 mm (1.9 in)
1973	74.7 mm (2.9 in)
1974	46.7 mm (1.8 in)
1975	91.4 mm (3.6 in)
1976	69.9 mm (2.8 in)
1977	46.2 mm (1.8 in)
1978	82.8 mm (3.3 in)
1979	50.8 mm (2.0 in)
1980	103.4 mm (4.1 in)
1981	49.3 mm (1.9 in)
1982	54.4 mm (2.1 in)
1983	32.0 mm (1.3 in)
1984	53.1 mm (2.1 in)
1985	71.4 mm (2.8 in)
1986	83.8 mm (3.3 in)
1987	10.7 mm (0.4 in)
1988	80.8 mm (3.2 in)
1989	97.0 mm (3.8 in)
1990	51.1 mm (2.0 in)
1991	45.5 mm (1.8 in)
1992	41.1 mm (1.6 in)
1993	64.3 mm (2.5 in)
1994	41.4 mm (1.6 in)
1995	43.7 mm (1.7 in)
1996	34.0 mm (1.3 in)
1997	40.6 mm (1.6 in)
1998	47.0 mm (1.9 in)
1999	40.4 mm (1.6 in)
2000	48.5 mm (1.9 in)
2001	69.6 mm (2.7 in)
2002	116.6 mm (4.6 in)
2003	49.5 mm (1.9 in)
2004	45.0 mm (1.8 in)
2005	70.1 mm (2.8 in)
2006	3.8 mm (0.15 in)
2008	36.8 mm (1.4 in)
2009	86.9 mm (3.4 in)
2010	52.3 mm (2.1 in)
2011	36.1 mm (1.4 in)
2012	111.8 mm (4.4 in)
2013	33.0 mm (1.3 in)
2014	54.1 mm (2.1 in)
2015	116.8 mm (4.6 in)
2016	128.3 mm (5.1 in)
2017	55.9 mm (2.2 in)
2018	72.4 mm (2.9 in)
2019	76.2 mm (3.0 in)
2020	69.9 mm (2.8 in)
2021	38.1 mm (1.5 in)
2022	68.6 mm (2.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Aitkin 2E, 1940 to 2022. The record is 329.5 mm (13.0 in) in 1952, marked on the chart; the median year is 90.7 mm (3.6 in).

Wettest five days (Rx5day) at Aitkin 2E by year
Year	Wettest five days (Rx5day)
1940	65.6 mm (2.6 in)
1941	158.2 mm (6.2 in)
1942	36.7 mm (1.4 in)
1943	116.1 mm (4.6 in)
1944	101.3 mm (4.0 in)
1945	100.9 mm (4.0 in)
1946	131.1 mm (5.2 in)
1947	73.5 mm (2.9 in)
1948	84.0 mm (3.3 in)
1949	111.9 mm (4.4 in)
1950	76.0 mm (3.0 in)
1951	175.5 mm (6.9 in)
1952	329.5 mm (13.0 in)
1953	130.1 mm (5.1 in)
1954	57.2 mm (2.3 in)
1955	135.2 mm (5.3 in)
1956	72.9 mm (2.9 in)
1957	56.3 mm (2.2 in)
1958	83.9 mm (3.3 in)
1959	110.5 mm (4.4 in)
1960	80.3 mm (3.2 in)
1961	78.9 mm (3.1 in)
1962	104.9 mm (4.1 in)
1963	127.0 mm (5.0 in)
1964	106.4 mm (4.2 in)
1965	100.4 mm (4.0 in)
1966	107.4 mm (4.2 in)
1967	53.1 mm (2.1 in)
1968	55.3 mm (2.2 in)
1969	52.5 mm (2.1 in)
1970	87.7 mm (3.5 in)
1971	83.9 mm (3.3 in)
1972	108.8 mm (4.3 in)
1973	152.5 mm (6.0 in)
1974	82.0 mm (3.2 in)
1975	149.1 mm (5.9 in)
1976	90.5 mm (3.6 in)
1977	69.1 mm (2.7 in)
1978	131.3 mm (5.2 in)
1979	75.2 mm (3.0 in)
1980	111.2 mm (4.4 in)
1981	64.0 mm (2.5 in)
1982	94.0 mm (3.7 in)
1983	38.9 mm (1.5 in)
1984	124.9 mm (4.9 in)
1985	100.1 mm (3.9 in)
1986	90.9 mm (3.6 in)
1987	10.7 mm (0.4 in)
1988	137.2 mm (5.4 in)
1989	131.0 mm (5.2 in)
1990	61.6 mm (2.4 in)
1991	78.2 mm (3.1 in)
1992	84.0 mm (3.3 in)
1993	86.2 mm (3.4 in)
1994	73.2 mm (2.9 in)
1995	95.1 mm (3.7 in)
1996	56.4 mm (2.2 in)
1997	73.4 mm (2.9 in)
1998	94.8 mm (3.7 in)
1999	91.7 mm (3.6 in)
2000	62.2 mm (2.4 in)
2001	92.3 mm (3.6 in)
2002	170.4 mm (6.7 in)
2003	89.1 mm (3.5 in)
2004	75.0 mm (3.0 in)
2005	89.4 mm (3.5 in)
2006	5.6 mm (0.22 in)
2008	71.4 mm (2.8 in)
2009	102.9 mm (4.1 in)
2010	89.2 mm (3.5 in)
2011	69.1 mm (2.7 in)
2012	175.8 mm (6.9 in)
2013	49.7 mm (2.0 in)
2014	80.0 mm (3.1 in)
2015	123.7 mm (4.9 in)
2016	208.1 mm (8.2 in)
2017	116.4 mm (4.6 in)
2018	130.8 mm (5.1 in)
2019	99.1 mm (3.9 in)
2020	96.6 mm (3.8 in)
2021	57.7 mm (2.3 in)
2022	134.6 mm (5.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Aitkin 2E, 1940 to 2022. The record is 46 days in 1943, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Aitkin 2E by year
Year	Longest dry spell (CDD)
1940	20 days
1941	15 days
1942	17 days
1943	46 days
1944	26 days
1945	26 days
1946	21 days
1947	24 days
1948	33 days
1949	22 days
1950	22 days
1951	16 days
1952	32 days
1953	24 days
1954	24 days
1955	16 days
1956	19 days
1957	20 days
1958	31 days
1959	27 days
1960	26 days
1961	30 days
1962	30 days
1963	22 days
1964	28 days
1965	22 days
1966	21 days
1967	32 days
1968	30 days
1969	25 days
1970	23 days
1971	16 days
1972	23 days
1973	20 days
1974	17 days
1975	18 days
1976	36 days
1977	30 days
1978	25 days
1979	18 days
1980	30 days
1981	25 days
1982	30 days
1983	19 days
1984	21 days
1985	39 days
1986	23 days
1987	12 days
1988	42 days
1989	28 days
1990	29 days
1991	15 days
1992	26 days
1993	25 days
1994	21 days
1995	22 days
1996	17 days
1997	24 days
1998	24 days
1999	19 days
2000	16 days
2001	17 days
2002	41 days
2003	29 days
2004	19 days
2005	18 days
2006	11 days
2008	22 days
2009	17 days
2010	23 days
2011	15 days
2012	21 days
2013	21 days
2014	15 days
2015	31 days
2016	16 days
2017	20 days
2018	20 days
2019	19 days
2020	22 days
2021	27 days
2022	26 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Aitkin 2E falls on 19 May and the median first autumn frost on 24 September, which leaves a median of 127 days between them.

Fitted over all years, the growing season changes by +0.6 days per decade at this station.

Frost dates and growing season at Aitkin 2E
Measure	Median, all years	Earliest period	Recent period (1959 to 2021)	Recent against earliest	Fitted trend
Last spring frost	19 May	n/a	19 May	n/a	+0.4 days per decade
First autumn frost	24 September	n/a	24 September	n/a	+1.0 days per decade
Growing days	127 days	n/a	127 days	n/a	+0.6 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

57 years, 1943 to 2021

A day with at least 57.3 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 139.9 mm (5.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Aitkin 2E: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	57.3 mm (2.3 in)
5 years	77.5 mm (3.1 in)
10 years	91.6 mm (3.6 in)
25 years	110.3 mm (4.3 in)
50 years	124.9 mm (4.9 in)
100 years	139.9 mm (5.5 in)	Longer than the 57 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, 57 years of values from 1943 to 2021.

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: 134.4 mm (5.3 in) in 1952; 116.6 mm (4.6 in) in 2002; 104.6 mm (4.1 in) in 1963.

Download the Data

Data for Aitkin 2E standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Aitkin 2E 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). Records are computed by this site and are not official.

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