Mackenzie Weather Records (USC00245303)

Record envelope, standing records and threshold days for Mackenzie (USC00245303), Montana, United States, with 77 years of record.

Key Facts for Mackenzie

Mackenzie (USC00245303) is a weather station in Montana, United States at 46.14 latitude and -104.74 longitude, 857 m (2,810 ft) above sea level.
The station reports from 1950 to 2026, 77 years of record.
2 records set at Mackenzie still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mackenzie set a daily record precipitation of 5.1 mm (0.20 in) on 11 December 2025.

About the Station

Location: Montana, United States, 46.14 latitude, -104.74 longitude.
Elevation: 857 m (2,810 ft).
Period of record: 1950 to 2026, 77 years.
Eligible elements: 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 Mackenzie. 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 Mackenzie, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	1.1 C (34.0 F)	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

2 standing records

2 records at Mackenzie still stand. 1953 holds the most, with 2.

All-Time Record Progression

2 new records

2 all-time records were set at Mackenzie between 7 June 2007 and 20 February 2011. Each dot is a new record.

When Mackenzie set new all-time records
Date	Kind	Detail
2007-06-07	Record daily precipitation	Record daily precipitation 83.8 mm (3.3 in)
2011-02-20	Record daily snowfall	Record daily snowfall 22.9 cm (9.0 in)

Wettest Day of Each Month

Jun: 83.8 mm (3.3 in)

The wettest day on record for each calendar month at Mackenzie. The most was 83.8 mm (3.3 in) on 7 June 2007.

Record daily precipitation for each month at Mackenzie
Month	Record daily precipitation (mm)	Date
Jan	30.7 mm (1.2 in)	3 January 1997
Feb	39.6 mm (1.6 in)	20 February 2011
Mar	26.9 mm (1.1 in)	29 March 1977
Apr	45.0 mm (1.8 in)	16 April 1967
May	67.3 mm (2.6 in)	1 May 2008
Jun	83.8 mm (3.3 in)	7 June 2007
Jul	76.7 mm (3.0 in)	14 July 1962
Aug	81.8 mm (3.2 in)	1 August 2025
Sep	68.6 mm (2.7 in)	5 September 1971
Oct	64.3 mm (2.5 in)	2 October 1971
Nov	44.5 mm (1.8 in)	10 November 2022
Dec	14.7 mm (0.6 in)	24 December 1982

Latest Records

Latest records at Mackenzie
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 December 2025	Mackenzie, US	daily rain	5.1 mm (0.20 in)	1.0 mm (0.04 in)	67 years	20 of 100 (Routine)
9 December 2025	Mackenzie, US	daily rain	3.3 mm (0.13 in)	0.8 mm (0.03 in)	12 years	13 of 100 (Routine)
17 October 2025	Mackenzie, US	daily rain	59.7 mm (2.4 in)	47.0 mm (1.9 in)	35 years	57 of 100 (Notable)
1 August 2025	Mackenzie, US	monthly rain	81.8 mm (3.2 in)	33.5 mm (1.3 in)	25 years	64 of 100 (Major)
16 July 2025	Mackenzie, US	daily rain	16.5 mm (0.6 in)	4.6 mm (0.18 in)	39 years	20 of 100 (Routine)
15 May 2025	Mackenzie, US	daily rain	8.9 mm (0.35 in)	1.0 mm (0.04 in)	10 years	11 of 100 (Routine)
24 March 2024	Mackenzie, US	daily rain	12.4 mm (0.5 in)	3.0 mm (0.12 in)	70 years	20 of 100 (Routine)
4 March 2024	Mackenzie, US	daily rain	5.8 mm (0.23 in)	3.5 mm (0.14 in)	44 years	20 of 100 (Routine)
26 February 2024	Mackenzie, US	daily rain	7.6 mm (0.30 in)	2.3 mm (0.09 in)	24 years	20 of 100 (Routine)
9 February 2024	Mackenzie, US	daily rain	9.4 mm (0.37 in)	6.4 mm (0.25 in)	52 years	20 of 100 (Routine)
10 October 2023	Mackenzie, US	daily rain	43.4 mm (1.7 in)	13.9 mm (0.5 in)	1 year	25 of 100 (Routine)
4 October 2023	Mackenzie, US	daily rain	33.0 mm (1.3 in)	9.1 mm (0.36 in)	28 years	27 of 100 (Routine)
20 August 2023	Mackenzie, US	daily rain	10.9 mm (0.4 in)	4.5 mm (0.18 in)	50 years	20 of 100 (Routine)
4 August 2023	Mackenzie, US	daily rain	39.4 mm (1.6 in)	19.1 mm (0.8 in)	9 years	36 of 100 (Notable)
27 June 2023	Mackenzie, US	daily rain	30.5 mm (1.2 in)	17.3 mm (0.7 in)	53 years	40 of 100 (Notable)
10 June 2023	Mackenzie, US	daily rain	27.7 mm (1.1 in)	2.0 mm (0.08 in)	20 years	15 of 100 (Routine)
23 May 2023	Mackenzie, US	daily rain	20.3 mm (0.8 in)	5.1 mm (0.20 in)	26 years	20 of 100 (Routine)
11 May 2023	Mackenzie, US	daily rain	17.5 mm (0.7 in)	0.7 mm (0.03 in)	40 years	19 of 100 (Routine)
21 February 2023	Mackenzie, US	daily rain	7.6 mm (0.30 in)	3.5 mm (0.14 in)	51 years	20 of 100 (Routine)
16 December 2022	Mackenzie, US	daily rain	7.6 mm (0.30 in)	4.0 mm (0.16 in)	5 years	20 of 100 (Routine)

Extremes by Year

1950 to 2026

Yearly extremes at Mackenzie: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Coldest night (TNn)	1.1 C (34.0 F)	1953	1.1 C (34.0 F)	1
Wettest day (Rx1day)	83.8 mm (3.3 in)	2007	35.6 mm (1.4 in)	77
Wettest five days (Rx5day)	127.2 mm (5.0 in)	2011	54.1 mm (2.1 in)	77
Longest dry spell (CDD)	104 days	2024	36 days	77

Coldest night (TNn)

The coldest night of the year at Mackenzie, 1950 to 2026. The record is 1.1 C (34.0 F) in 1953, marked on the chart; the median year is 1.1 C (34.0 F).

Coldest night (TNn) at Mackenzie by year
Year	Coldest night (TNn)
1950	n/a
1951	n/a
1952	n/a
1953	1.1 C (34.0 F)
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Mackenzie, 1950 to 2026. The record is 83.8 mm (3.3 in) in 2007, marked on the chart; the median year is 35.6 mm (1.4 in).

Wettest day (Rx1day) at Mackenzie by year
Year	Wettest day (Rx1day)
1950	34.8 mm (1.4 in)
1951	43.4 mm (1.7 in)
1952	19.3 mm (0.8 in)
1953	40.1 mm (1.6 in)
1954	22.6 mm (0.9 in)
1955	49.8 mm (2.0 in)
1956	46.2 mm (1.8 in)
1957	36.3 mm (1.4 in)
1958	30.5 mm (1.2 in)
1959	30.2 mm (1.2 in)
1960	21.1 mm (0.8 in)
1961	24.6 mm (1.0 in)
1962	76.7 mm (3.0 in)
1963	22.1 mm (0.9 in)
1964	32.3 mm (1.3 in)
1965	29.5 mm (1.2 in)
1966	32.3 mm (1.3 in)
1967	45.0 mm (1.8 in)
1968	43.4 mm (1.7 in)
1969	60.5 mm (2.4 in)
1970	38.1 mm (1.5 in)
1971	68.6 mm (2.7 in)
1972	28.7 mm (1.1 in)
1973	58.7 mm (2.3 in)
1974	34.3 mm (1.4 in)
1975	47.5 mm (1.9 in)
1976	53.8 mm (2.1 in)
1977	28.2 mm (1.1 in)
1978	29.5 mm (1.2 in)
1979	23.9 mm (0.9 in)
1980	34.8 mm (1.4 in)
1981	32.0 mm (1.3 in)
1982	51.8 mm (2.0 in)
1983	40.6 mm (1.6 in)
1984	44.7 mm (1.8 in)
1985	31.8 mm (1.3 in)
1986	33.3 mm (1.3 in)
1987	39.4 mm (1.6 in)
1988	24.6 mm (1.0 in)
1989	26.7 mm (1.1 in)
1990	21.1 mm (0.8 in)
1991	40.6 mm (1.6 in)
1992	27.4 mm (1.1 in)
1993	64.0 mm (2.5 in)
1994	38.4 mm (1.5 in)
1995	35.6 mm (1.4 in)
1996	21.8 mm (0.9 in)
1997	30.7 mm (1.2 in)
1998	36.6 mm (1.4 in)
1999	48.3 mm (1.9 in)
2000	39.4 mm (1.6 in)
2001	31.8 mm (1.3 in)
2002	25.7 mm (1.0 in)
2003	27.9 mm (1.1 in)
2004	19.6 mm (0.8 in)
2005	52.6 mm (2.1 in)
2006	41.1 mm (1.6 in)
2007	83.8 mm (3.3 in)
2008	67.3 mm (2.6 in)
2009	36.1 mm (1.4 in)
2010	41.7 mm (1.6 in)
2011	49.0 mm (1.9 in)
2012	19.1 mm (0.8 in)
2013	51.8 mm (2.0 in)
2014	33.8 mm (1.3 in)
2015	25.9 mm (1.0 in)
2016	39.6 mm (1.6 in)
2017	47.2 mm (1.9 in)
2018	47.5 mm (1.9 in)
2019	32.5 mm (1.3 in)
2020	28.4 mm (1.1 in)
2021	29.5 mm (1.2 in)
2022	44.5 mm (1.8 in)
2023	43.4 mm (1.7 in)
2024	31.2 mm (1.2 in)
2025	81.8 mm (3.2 in)
2026	14.0 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mackenzie, 1950 to 2026. The record is 127.2 mm (5.0 in) in 2011, marked on the chart; the median year is 54.1 mm (2.1 in).

Wettest five days (Rx5day) at Mackenzie by year
Year	Wettest five days (Rx5day)
1950	48.0 mm (1.9 in)
1951	53.6 mm (2.1 in)
1952	29.3 mm (1.2 in)
1953	78.9 mm (3.1 in)
1954	39.1 mm (1.5 in)
1955	49.8 mm (2.0 in)
1956	55.3 mm (2.2 in)
1957	60.2 mm (2.4 in)
1958	49.5 mm (1.9 in)
1959	36.6 mm (1.4 in)
1960	28.7 mm (1.1 in)
1961	47.5 mm (1.9 in)
1962	89.1 mm (3.5 in)
1963	44.5 mm (1.8 in)
1964	62.2 mm (2.4 in)
1965	51.5 mm (2.0 in)
1966	46.0 mm (1.8 in)
1967	73.7 mm (2.9 in)
1968	50.0 mm (2.0 in)
1969	110.0 mm (4.3 in)
1970	61.2 mm (2.4 in)
1971	100.4 mm (4.0 in)
1972	53.5 mm (2.1 in)
1973	80.8 mm (3.2 in)
1974	51.5 mm (2.0 in)
1975	65.3 mm (2.6 in)
1976	62.6 mm (2.5 in)
1977	43.7 mm (1.7 in)
1978	42.7 mm (1.7 in)
1979	41.4 mm (1.6 in)
1980	47.5 mm (1.9 in)
1981	45.2 mm (1.8 in)
1982	96.2 mm (3.8 in)
1983	55.5 mm (2.2 in)
1984	57.9 mm (2.3 in)
1985	39.4 mm (1.6 in)
1986	90.0 mm (3.5 in)
1987	45.0 mm (1.8 in)
1988	24.6 mm (1.0 in)
1989	56.4 mm (2.2 in)
1990	44.2 mm (1.7 in)
1991	73.9 mm (2.9 in)
1992	52.8 mm (2.1 in)
1993	91.7 mm (3.6 in)
1994	55.4 mm (2.2 in)
1995	67.9 mm (2.7 in)
1996	45.9 mm (1.8 in)
1997	44.9 mm (1.8 in)
1998	58.9 mm (2.3 in)
1999	59.0 mm (2.3 in)
2000	54.4 mm (2.1 in)
2001	51.6 mm (2.0 in)
2002	31.5 mm (1.2 in)
2003	45.3 mm (1.8 in)
2004	30.8 mm (1.2 in)
2005	100.3 mm (3.9 in)
2006	81.5 mm (3.2 in)
2007	83.8 mm (3.3 in)
2008	86.6 mm (3.4 in)
2009	48.0 mm (1.9 in)
2010	85.2 mm (3.4 in)
2011	127.2 mm (5.0 in)
2012	35.3 mm (1.4 in)
2013	102.1 mm (4.0 in)
2014	42.7 mm (1.7 in)
2015	35.3 mm (1.4 in)
2016	56.4 mm (2.2 in)
2017	61.9 mm (2.4 in)
2018	47.5 mm (1.9 in)
2019	59.9 mm (2.4 in)
2020	44.8 mm (1.8 in)
2021	54.1 mm (2.1 in)
2022	57.7 mm (2.3 in)
2023	69.6 mm (2.7 in)
2024	68.3 mm (2.7 in)
2025	91.9 mm (3.6 in)
2026	14.0 mm (0.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mackenzie, 1950 to 2026. The record is 104 days in 2024, marked on the chart; the median year is 36 days.

Longest dry spell (CDD) at Mackenzie by year
Year	Longest dry spell (CDD)
1950	36 days
1951	47 days
1952	75 days
1953	49 days
1954	45 days
1955	33 days
1956	52 days
1957	63 days
1958	37 days
1959	37 days
1960	80 days
1961	31 days
1962	32 days
1963	35 days
1964	43 days
1965	42 days
1966	29 days
1967	52 days
1968	25 days
1969	32 days
1970	34 days
1971	61 days
1972	33 days
1973	25 days
1974	64 days
1975	30 days
1976	28 days
1977	28 days
1978	42 days
1979	28 days
1980	35 days
1981	47 days
1982	17 days
1983	53 days
1984	22 days
1985	25 days
1986	33 days
1987	74 days
1988	29 days
1989	28 days
1990	38 days
1991	52 days
1992	50 days
1993	39 days
1994	44 days
1995	27 days
1996	36 days
1997	35 days
1998	32 days
1999	32 days
2000	40 days
2001	42 days
2002	64 days
2003	29 days
2004	46 days
2005	33 days
2006	49 days
2007	46 days
2008	37 days
2009	55 days
2010	20 days
2011	41 days
2012	49 days
2013	17 days
2014	27 days
2015	35 days
2016	30 days
2017	39 days
2018	23 days
2019	22 days
2020	35 days
2021	40 days
2022	28 days
2023	44 days
2024	104 days
2025	27 days
2026	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.

Rainfall Return Levels

73 years, 1951 to 2024

A day with at least 35.5 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 84.1 mm (3.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Mackenzie: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	35.5 mm (1.4 in)
5 years	47.6 mm (1.9 in)
10 years	55.9 mm (2.2 in)
25 years	66.9 mm (2.6 in)
50 years	75.4 mm (3.0 in)
100 years	84.1 mm (3.3 in)	Longer than the 73 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, 73 years of values from 1951 to 2024.

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: 83.8 mm (3.3 in) in 2007; 76.7 mm (3.0 in) in 1962; 68.6 mm (2.7 in) in 1971.

Download the Data

Data for Mackenzie standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mackenzie 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 2026-10-14 (14 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).