Alberton Weather Records (USC00240075)

Record envelope, standing records and threshold days for Alberton (USC00240075), Montana, United States, with 69 years of record.

Key Facts for Alberton

Alberton (USC00240075) is a weather station in Montana, United States at 47.00 latitude and -114.48 longitude, 933 m (3,060 ft) above sea level.
The station reports from 1958 to 2026, 69 years of record.
1,464 records set at Alberton still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Alberton tied a monthly record high maximum temperature of 30.6 C (87.1 F) on 6 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Montana, United States, 47.00 latitude, -114.48 longitude.
Elevation: 933 m (3,060 ft).
Period of record: 1958 to 2026, 69 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

21 days at or beyond a record

The band shows the record high and record low for each calendar day at Alberton. The lines show the 2026 daily maximum and minimum. 21 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Alberton, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.0 C (59.0 F)	-33.3 C (-27.9 F)	10.0 C (50.0 F)	-14.4 C (6.1 F)
Feb	16.7 C (62.1 F)	-30.0 C (-22.0 F)	14.4 C (57.9 F)	-9.4 C (15.1 F)
Mar	26.7 C (80.1 F)	-24.4 C (-11.9 F)	24.4 C (75.9 F)	-7.2 C (19.0 F)
Apr	30.6 C (87.1 F)	-11.1 C (12.0 F)	27.8 C (82.0 F)	-5.0 C (23.0 F)
May	34.4 C (93.9 F)	-6.1 C (21.0 F)	33.3 C (91.9 F)	-2.2 C (28.0 F)
Jun	40.6 C (105.1 F)	-1.7 C (28.9 F)	31.7 C (89.1 F)	0.0 C (32.0 F)
Jul	40.6 C (105.1 F)	-0.6 C (30.9 F)	38.3 C (100.9 F)	6.7 C (44.1 F)
Aug	40.6 C (105.1 F)	0.0 C (32.0 F)	37.8 C (100.0 F)	2.2 C (36.0 F)
Sep	37.8 C (100.0 F)	-6.1 C (21.0 F)	32.2 C (90.0 F)	-2.2 C (28.0 F)
Oct	30.6 C (87.1 F)	-22.8 C (-9.0 F)	30.6 C (87.1 F)	0.0 C (32.0 F)
Nov	21.7 C (71.1 F)	-24.4 C (-11.9 F)	n/a	n/a
Dec	20.0 C (68.0 F)	-33.9 C (-29.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Alberton still stand. 2021 holds the most, with 67.

Standing records at Alberton by the year they were set
Year set	Standing records
1958	26
1959	43
1960	39
1961	44
1962	43
1963	38
1964	19
1965	52
1966	37
1967	34
1968	37
1969	46
1970	26
1971	39
1972	46
1973	27
1974	18
1999	12
2000	15
2001	13
2002	38
2003	35
2004	27
2005	25
2006	23
2007	27
2008	29
2009	26
2010	28
2011	24
2012	30
2013	25
2014	33
2015	42
2016	24
2017	23
2018	21
2019	43
2020	47
2021	67
2022	43
2023	39
2024	25
2025	45
2026	21

All-Time Record Progression

2 new records

2 all-time records were set at Alberton between 30 June 2020 and 24 October 2020. Each dot is a new record.

When Alberton set new all-time records
Date	Kind	Detail
2020-06-30	Record daily precipitation	Record daily precipitation 44.5 mm (1.8 in)
2020-10-24	Record daily snowfall	Record daily snowfall 29.5 cm (11.6 in)

Wettest Day of Each Month

Jun: 44.5 mm (1.8 in)

The wettest day on record for each calendar month at Alberton. The most was 44.5 mm (1.8 in) on 30 June 2020.

Record daily precipitation for each month at Alberton
Month	Record daily precipitation (mm)	Date
Jan	34.8 mm (1.4 in)	15 January 1974
Feb	37.6 mm (1.5 in)	27 February 1972
Mar	21.6 mm (0.9 in)	14 March 2026
Apr	38.6 mm (1.5 in)	23 April 2026
May	31.8 mm (1.3 in)	22 May 2002
Jun	44.5 mm (1.8 in)	30 June 2020
Jul	31.2 mm (1.2 in)	12 July 1965
Aug	29.0 mm (1.1 in)	12 August 2019
Sep	31.0 mm (1.2 in)	12 September 2024
Oct	40.4 mm (1.6 in)	1 October 2000
Nov	33.5 mm (1.3 in)	1 November 2015
Dec	23.1 mm (0.9 in)	22 December 1964

Period of Record Coverage

1958 to 2026

45 years of record at Alberton, 1958 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1958, 1963, 1964, 1972, 1973, 1974, 1999, 2000 and others.

Days with data per year at Alberton
Year	Days with data	Share of year	Complete
1958	250	68%	No
1959	333	91%	Yes
1960	358	98%	Yes
1961	332	91%	Yes
1962	357	98%	Yes
1963	321	88%	No
1964	294	80%	No
1965	355	97%	Yes
1966	365	100%	Yes
1967	351	96%	Yes
1968	359	98%	Yes
1969	354	97%	Yes
1970	336	92%	Yes
1971	335	92%	Yes
1972	300	82%	No
1973	226	62%	No
1974	173	47%	No
1999	171	47%	No
2000	284	78%	No
2001	210	58%	No
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	364	100%	Yes
2015	364	100%	Yes
2016	366	100%	Yes
2017	365	100%	Yes
2018	364	100%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	365	100%	Yes
2026	282	77%	No

Latest Records

Latest records at Alberton
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 October 2026	Alberton, US	monthly high max (Tie, Provisional)	30.6 C (87.1 F)	tie	25 years	5 of 100 (Routine)
28 September 2026	Alberton, US	daily low min (Tie, Provisional)	-2.2 C (28.0 F)	tie	27 years	3 of 100 (Routine)
27 September 2026	Alberton, US	daily low min (Tie, Provisional)	-2.2 C (28.0 F)	tie	64 years	6 of 100 (Routine)
8 September 2026	Alberton, US	daily low max (Provisional)	14.4 C (57.9 F)	2.3 C (4.1 F)	56 years	25 of 100 (Routine)
7 September 2026	Alberton, US	daily rain (Provisional)	15.0 mm (0.6 in)	4.3 mm (0.17 in)	52 years	20 of 100 (Routine)
26 August 2026	Alberton, US	daily high max (Provisional)	36.1 C (97.0 F)	0.5 C (0.9 F)	0 years	7 of 100 (Routine)
9 August 2026	Alberton, US	daily high max (Tie)	37.2 C (99.0 F)	tie	7 years	2 of 100 (Routine)
26 July 2026	Alberton, US	daily high max	38.3 C (100.9 F)	1.6 C (2.9 F)	4 years	10 of 100 (Routine)
22 July 2026	Alberton, US	daily high min	14.4 C (57.9 F)	0.5 C (0.9 F)	1 year	7 of 100 (Routine)
18 July 2026	Alberton, US	daily high min	16.1 C (61.0 F)	0.5 C (0.9 F)	61 years	25 of 100 (Routine)
15 July 2026	Alberton, US	daily low max	21.7 C (71.1 F)	1.6 C (2.9 F)	61 years	27 of 100 (Routine)
30 June 2026	Alberton, US	daily low max (Tie)	13.3 C (55.9 F)	tie	5 years	1 of 100 (Routine)
29 June 2026	Alberton, US	daily rain	27.7 mm (1.1 in)	3.8 mm (0.15 in)	63 years	30 of 100 (Routine)
29 June 2026	Alberton, US	daily low max	11.7 C (53.1 F)	2.2 C (4.0 F)	63 years	27 of 100 (Routine)
8 June 2026	Alberton, US	daily low min	0.0 C (32.0 F)	1.7 C (3.1 F)	60 years	29 of 100 (Routine)
1 June 2026	Alberton, US	daily low max	11.7 C (53.1 F)	0.5 C (0.9 F)	25 years	13 of 100 (Routine)
31 May 2026	Alberton, US	daily rain	18.0 mm (0.7 in)	4.3 mm (0.17 in)	55 years	20 of 100 (Routine)
31 May 2026	Alberton, US	daily low max	13.3 C (55.9 F)	1.1 C (2.0 F)	59 years	24 of 100 (Routine)
29 May 2026	Alberton, US	daily high max	33.3 C (91.9 F)	1.1 C (2.0 F)	23 years	13 of 100 (Routine)
28 May 2026	Alberton, US	daily high max	29.4 C (84.9 F)	1.1 C (2.0 F)	60 years	25 of 100 (Routine)

Climate Trend

35 complete years, 1959 to 2025

One stripe for each of 35 complete years at Alberton, 1959 to 2025. Blue stripes are years cooler than the station's own mean of 7.6 C (45.7 F); red stripes are warmer. The coolest year was 2019, at 6.5 C (43.7 F), and the warmest was 2021, at 9.2 C (48.5 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Alberton as warming stripes, 1959 to 2025
Year	Annual mean temperature	Difference from the station mean
1959	7.0 C	-0.63 C
1960	7.3 C	-0.31 C
1962	7.4 C	-0.27 C
1965	7.0 C	-0.67 C
1966	8.0 C	+0.34 C
1967	8.2 C	+0.61 C
1968	7.2 C	-0.47 C
1969	6.8 C	-0.85 C
1970	7.2 C	-0.39 C
1971	7.1 C	-0.51 C
1972	6.6 C	-1.06 C
2002	7.1 C	-0.55 C
2003	8.3 C	+0.64 C
2004	8.0 C	+0.39 C
2005	7.2 C	-0.44 C
2006	8.2 C	+0.57 C
2007	8.2 C	+0.58 C
2008	6.8 C	-0.85 C
2009	7.2 C	-0.45 C
2010	7.4 C	-0.26 C
2011	7.0 C	-0.62 C
2012	8.3 C	+0.64 C
2013	7.8 C	+0.17 C
2014	7.6 C	+0.02 C
2015	8.8 C	+1.19 C
2016	8.2 C	+0.61 C
2017	7.3 C	-0.34 C
2018	7.6 C	+0.02 C
2019	6.5 C	-1.12 C
2020	8.5 C	+0.88 C
2021	9.2 C	+1.55 C
2022	7.0 C	-0.64 C
2023	8.0 C	+0.37 C
2024	8.3 C	+0.66 C
2025	8.7 C	+1.12 C

The annual mean temperature here has risen by 0.12 C (0.03 to 0.22) per decade over 1959 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Alberton
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.12 C (0.03 to 0.22) per decade	0.2 F (0.1 to 0.4) per decade	1959 to 2025	35	Rise
Mean daily maximum	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.5) per decade	1959 to 2025	35	Rise
Mean daily minimum	0.07 C (-0.02 to 0.17) per decade	0.13 F (-0.04 to 0.31) per decade	1959 to 2025	35	Not clearly different from zero

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

1958 to 2026

Yearly extremes at Alberton: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1961	37.8 C (100.0 F)	45
Coldest night (TNn)	-33.9 C (-29.0 F)	1964	-24.4 C (-11.9 F)	45
Wettest day (Rx1day)	44.5 mm (1.8 in)	2020	25.4 mm (1.0 in)	45
Wettest five days (Rx5day)	78.7 mm (3.1 in)	1974	44.9 mm (1.8 in)	45
Longest dry spell (CDD)	79 days	2017	27 days	45

Hottest day (TXx)

The hottest day of the year at Alberton, 1958 to 2026. The record is 40.6 C (105.1 F) in 1961, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Alberton by year
Year	Hottest day (TXx)
1958	35.6 C (96.1 F)
1959	38.3 C (100.9 F)
1960	39.4 C (102.9 F)
1961	40.6 C (105.1 F)
1962	35.6 C (96.1 F)
1963	35.0 C (95.0 F)
1964	36.7 C (98.1 F)
1965	35.6 C (96.1 F)
1966	37.8 C (100.0 F)
1967	37.8 C (100.0 F)
1968	37.2 C (99.0 F)
1969	38.3 C (100.9 F)
1970	36.7 C (98.1 F)
1971	37.2 C (99.0 F)
1972	35.6 C (96.1 F)
1973	40.0 C (104.0 F)
1974	36.1 C (97.0 F)
1999	37.2 C (99.0 F)
2000	39.4 C (102.9 F)
2001	37.2 C (99.0 F)
2002	40.6 C (105.1 F)
2003	38.9 C (102.0 F)
2004	37.8 C (100.0 F)
2005	37.2 C (99.0 F)
2006	38.9 C (102.0 F)
2007	40.0 C (104.0 F)
2008	37.2 C (99.0 F)
2009	37.2 C (99.0 F)
2010	37.2 C (99.0 F)
2011	36.1 C (97.0 F)
2012	37.8 C (100.0 F)
2013	38.3 C (100.9 F)
2014	37.8 C (100.0 F)
2015	40.6 C (105.1 F)
2016	36.1 C (97.0 F)
2017	38.3 C (100.9 F)
2018	40.0 C (104.0 F)
2019	37.2 C (99.0 F)
2020	38.9 C (102.0 F)
2021	40.6 C (105.1 F)
2022	38.3 C (100.9 F)
2023	39.4 C (102.9 F)
2024	38.9 C (102.0 F)
2025	37.8 C (100.0 F)
2026	38.3 C (100.9 F)

Coldest night (TNn)

The coldest night of the year at Alberton, 1958 to 2026. The record is -33.9 C (-29.0 F) in 1964, marked on the chart; the median year is -24.4 C (-11.9 F).

Coldest night (TNn) at Alberton by year
Year	Coldest night (TNn)
1958	-14.4 C (6.1 F)
1959	-24.4 C (-11.9 F)
1960	-27.2 C (-17.0 F)
1961	-27.2 C (-17.0 F)
1962	-32.8 C (-27.0 F)
1963	-33.3 C (-27.9 F)
1964	-33.9 C (-29.0 F)
1965	-21.7 C (-7.1 F)
1966	-17.8 C (0.0 F)
1967	-17.8 C (0.0 F)
1968	-31.7 C (-25.1 F)
1969	-25.6 C (-14.1 F)
1970	-24.4 C (-11.9 F)
1971	-21.7 C (-7.1 F)
1972	-30.0 C (-22.0 F)
1973	-27.8 C (-18.0 F)
1974	-31.1 C (-24.0 F)
1999	-7.8 C (18.0 F)
2000	-17.8 C (0.0 F)
2001	-17.8 C (0.0 F)
2002	-21.1 C (-6.0 F)
2003	-19.4 C (-2.9 F)
2004	-29.4 C (-20.9 F)
2005	-24.4 C (-11.9 F)
2006	-23.9 C (-11.0 F)
2007	-21.1 C (-6.0 F)
2008	-27.2 C (-17.0 F)
2009	-25.0 C (-13.0 F)
2010	-22.2 C (-8.0 F)
2011	-22.2 C (-8.0 F)
2012	-13.3 C (8.1 F)
2013	-26.1 C (-15.0 F)
2014	-30.0 C (-22.0 F)
2015	-20.0 C (-4.0 F)
2016	-23.9 C (-11.0 F)
2017	-28.9 C (-20.0 F)
2018	-17.2 C (1.0 F)
2019	-24.4 C (-11.9 F)
2020	-17.8 C (0.0 F)
2021	-18.9 C (-2.0 F)
2022	-29.4 C (-20.9 F)
2023	-25.6 C (-14.1 F)
2024	-31.7 C (-25.1 F)
2025	-25.0 C (-13.0 F)
2026	-14.4 C (6.1 F)

Wettest day (Rx1day)

The wettest day of the year at Alberton, 1958 to 2026. The record is 44.5 mm (1.8 in) in 2020, marked on the chart; the median year is 25.4 mm (1.0 in).

Wettest day (Rx1day) at Alberton by year
Year	Wettest day (Rx1day)
1958	31.2 mm (1.2 in)
1959	24.4 mm (1.0 in)
1960	16.8 mm (0.7 in)
1961	17.0 mm (0.7 in)
1962	16.5 mm (0.6 in)
1963	23.9 mm (0.9 in)
1964	35.6 mm (1.4 in)
1965	42.4 mm (1.7 in)
1966	15.7 mm (0.6 in)
1967	24.4 mm (1.0 in)
1968	15.5 mm (0.6 in)
1969	23.9 mm (0.9 in)
1970	21.6 mm (0.9 in)
1971	16.5 mm (0.6 in)
1972	37.6 mm (1.5 in)
1973	32.5 mm (1.3 in)
1974	34.8 mm (1.4 in)
1999	20.3 mm (0.8 in)
2000	40.4 mm (1.6 in)
2001	13.7 mm (0.5 in)
2002	31.8 mm (1.3 in)
2003	27.9 mm (1.1 in)
2004	21.8 mm (0.9 in)
2005	23.1 mm (0.9 in)
2006	29.0 mm (1.1 in)
2007	22.4 mm (0.9 in)
2008	31.8 mm (1.3 in)
2009	18.3 mm (0.7 in)
2010	21.8 mm (0.9 in)
2011	25.4 mm (1.0 in)
2012	27.9 mm (1.1 in)
2013	17.5 mm (0.7 in)
2014	31.2 mm (1.2 in)
2015	33.5 mm (1.3 in)
2016	27.7 mm (1.1 in)
2017	34.0 mm (1.3 in)
2018	20.1 mm (0.8 in)
2019	29.0 mm (1.1 in)
2020	44.5 mm (1.8 in)
2021	30.7 mm (1.2 in)
2022	27.4 mm (1.1 in)
2023	22.4 mm (0.9 in)
2024	31.0 mm (1.2 in)
2025	17.5 mm (0.7 in)
2026	38.6 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Alberton, 1958 to 2026. The record is 78.7 mm (3.1 in) in 1974, marked on the chart; the median year is 44.9 mm (1.8 in).

Wettest five days (Rx5day) at Alberton by year
Year	Wettest five days (Rx5day)
1958	67.6 mm (2.7 in)
1959	46.2 mm (1.8 in)
1960	39.4 mm (1.6 in)
1961	34.5 mm (1.4 in)
1962	56.9 mm (2.2 in)
1963	43.5 mm (1.7 in)
1964	50.6 mm (2.0 in)
1965	49.0 mm (1.9 in)
1966	44.4 mm (1.7 in)
1967	52.6 mm (2.1 in)
1968	46.2 mm (1.8 in)
1969	56.0 mm (2.2 in)
1970	51.6 mm (2.0 in)
1971	44.9 mm (1.8 in)
1972	77.5 mm (3.1 in)
1973	43.9 mm (1.7 in)
1974	78.7 mm (3.1 in)
1999	31.2 mm (1.2 in)
2000	40.4 mm (1.6 in)
2001	28.2 mm (1.1 in)
2002	58.0 mm (2.3 in)
2003	38.1 mm (1.5 in)
2004	37.3 mm (1.5 in)
2005	33.8 mm (1.3 in)
2006	47.5 mm (1.9 in)
2007	47.9 mm (1.9 in)
2008	65.6 mm (2.6 in)
2009	34.6 mm (1.4 in)
2010	35.5 mm (1.4 in)
2011	46.0 mm (1.8 in)
2012	36.9 mm (1.5 in)
2013	29.5 mm (1.2 in)
2014	35.3 mm (1.4 in)
2015	40.4 mm (1.6 in)
2016	31.8 mm (1.3 in)
2017	57.4 mm (2.3 in)
2018	42.9 mm (1.7 in)
2019	59.9 mm (2.4 in)
2020	62.5 mm (2.5 in)
2021	58.2 mm (2.3 in)
2022	52.3 mm (2.1 in)
2023	26.9 mm (1.1 in)
2024	37.1 mm (1.5 in)
2025	41.6 mm (1.6 in)
2026	53.6 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Alberton, 1958 to 2026. The record is 79 days in 2017, marked on the chart; the median year is 27 days.

Longest dry spell (CDD) at Alberton by year
Year	Longest dry spell (CDD)
1958	15 days
1959	23 days
1960	20 days
1961	40 days
1962	20 days
1963	23 days
1964	17 days
1965	19 days
1966	28 days
1967	34 days
1968	20 days
1969	34 days
1970	33 days
1971	23 days
1972	15 days
1973	32 days
1974	22 days
1999	41 days
2000	34 days
2001	59 days
2002	20 days
2003	28 days
2004	18 days
2005	26 days
2006	32 days
2007	27 days
2008	30 days
2009	24 days
2010	34 days
2011	27 days
2012	60 days
2013	32 days
2014	20 days
2015	19 days
2016	27 days
2017	79 days
2018	47 days
2019	20 days
2020	27 days
2021	41 days
2022	36 days
2023	39 days
2024	22 days
2025	24 days
2026	43 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

35 years with a frost

Across 35 years with a frost, the median last spring frost at Alberton falls on 23 May and the median first autumn frost on 21 September, which leaves a median of 122 days between them.

Fitted over all years, the growing season changes by +5.9 days per decade at this station.

Frost dates and growing season at Alberton
Measure	Median, all years	Earliest period	Recent period (1967 to 2025)	Recent against earliest	Fitted trend
Last spring frost	23 May	n/a	22 May	n/a	-1.7 days per decade
First autumn frost	21 September	n/a	23 September	n/a	+4.1 days per decade
Growing days	122 days	n/a	126 days	n/a	+5.9 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

38 years, 1959 to 2025

A day with at least 24.8 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 49.2 mm (1.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Alberton: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	24.8 mm (1.0 in)
5 years	31.9 mm (1.3 in)
10 years	36.3 mm (1.4 in)
25 years	41.7 mm (1.6 in)
50 years	45.5 mm (1.8 in)	Longer than the 38 years of record
100 years	49.2 mm (1.9 in)	Longer than the 38 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, 38 years of values from 1959 to 2025.

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: 44.5 mm (1.8 in) in 2020; 42.4 mm (1.7 in) in 1965; 40.4 mm (1.6 in) in 2000.

Download the Data

Data for Alberton standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Alberton 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).