Fishtail Weather Records (USC00242996)

Record envelope, standing records and threshold days for Fishtail (USC00242996), Montana, United States, with 71 years of record.

Key Facts for Fishtail

Fishtail (USC00242996) is a weather station in Montana, United States at 45.45 latitude and -109.51 longitude, 1,372 m (4,500 ft) above sea level.
The station reports from 1951 to 2021, 71 years of record.
0 records set at Fishtail still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Fishtail tied a daily record snow depth of 10.2 cm (4.0 in) on 23 March 2020.

About the Station

Location: Montana, United States, 45.45 latitude, -109.51 longitude.
Elevation: 1,372 m (4,500 ft).
Period of record: 1951 to 2021, 71 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 Fishtail. 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 Fishtail, 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	n/a	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

0 standing records

0 records at Fishtail still stand.

All-Time Record Progression

4 new records

4 all-time records were set at Fishtail between 11 May 2005 and 28 February 2019. Each dot is a new record.

When Fishtail set new all-time records
Date	Kind	Detail
2005-05-11	Record daily precipitation	Record daily precipitation 106.7 mm (4.2 in)
2013-10-04	Record snow depth	Record snow depth 53.3 cm (21.0 in)
2019-02-26	Record snow depth	Record snow depth 55.9 cm (22.0 in)
2019-02-28	Record snow depth	Record snow depth 83.8 cm (33.0 in)

Wettest Day of Each Month

May: 106.7 mm (4.2 in)

The wettest day on record for each calendar month at Fishtail. The most was 106.7 mm (4.2 in) on 11 May 2005.

Record daily precipitation for each month at Fishtail
Month	Record daily precipitation (mm)	Date
Jan	36.6 mm (1.4 in)	31 January 2017
Feb	43.7 mm (1.7 in)	28 February 2004
Mar	30.7 mm (1.2 in)	27 March 1981
Apr	47.5 mm (1.9 in)	26 April 1976
May	106.7 mm (4.2 in)	11 May 2005
Jun	91.9 mm (3.6 in)	16 June 1957
Jul	88.9 mm (3.5 in)	11 July 1987
Aug	38.4 mm (1.5 in)	16 August 1997
Sep	67.8 mm (2.7 in)	18 September 1978
Oct	77.0 mm (3.0 in)	31 October 1974
Nov	72.9 mm (2.9 in)	1 November 1957
Dec	77.5 mm (3.1 in)	16 December 1996

Latest Records

Latest records at Fishtail
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 March 2020	Fishtail, US	daily snow depth (Tie)	10.2 cm (4.0 in)	tie	7 years	2 of 100 (Routine)
20 March 2020	Fishtail, US	daily snow depth (Tie)	15.2 cm (6.0 in)	tie	6 years	2 of 100 (Routine)
17 March 2020	Fishtail, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	1 year	8 of 100 (Routine)
12 March 2020	Fishtail, US	daily snowfall	11.4 cm (4.5 in)	3.8 cm (1.5 in)	65 years	32 of 100 (Routine)
12 March 2020	Fishtail, US	daily rain	9.7 mm (0.38 in)	1.8 mm (0.07 in)	47 years	20 of 100 (Routine)
29 February 2020	Fishtail, US	daily snowfall	0.5 cm (0.2 in)	0.5 cm (0.2 in)	68 years	20 of 100 (Routine)
29 February 2020	Fishtail, US	daily snow depth	5.1 cm (2.0 in)	5.1 cm (2.0 in)	28 years	18 of 100 (Routine)
14 February 2020	Fishtail, US	daily snow depth	35.6 cm (14.0 in)	12.7 cm (5.0 in)	5 years	17 of 100 (Routine)
13 February 2020	Fishtail, US	daily snow depth	38.1 cm (15.0 in)	15.2 cm (6.0 in)	5 years	19 of 100 (Routine)
12 February 2020	Fishtail, US	daily snow depth	38.1 cm (15.0 in)	10.2 cm (4.0 in)	1 year	14 of 100 (Routine)
11 February 2020	Fishtail, US	daily snow depth	30.5 cm (12.0 in)	2.6 cm (1.0 in)	5 years	10 of 100 (Routine)
10 February 2020	Fishtail, US	daily snow depth	38.1 cm (15.0 in)	7.6 cm (3.0 in)	5 years	13 of 100 (Routine)
9 February 2020	Fishtail, US	daily snow depth	40.6 cm (16.0 in)	10.1 cm (4.0 in)	5 years	15 of 100 (Routine)
8 February 2020	Fishtail, US	daily snow depth	33.0 cm (13.0 in)	2.5 cm (1.0 in)	2 years	8 of 100 (Routine)
4 February 2020	Fishtail, US	daily snow depth	25.4 cm (10.0 in)	7.6 cm (3.0 in)	2 years	12 of 100 (Routine)
2 February 2020	Fishtail, US	daily rain	34.3 mm (1.4 in)	13.0 mm (0.5 in)	2 years	30 of 100 (Routine)
2 February 2020	Fishtail, US	daily snowfall	30.5 cm (12.0 in)	7.6 cm (3.0 in)	2 years	17 of 100 (Routine)
9 January 2020	Fishtail, US	daily snowfall	12.7 cm (5.0 in)	2.5 cm (1.0 in)	26 years	18 of 100 (Routine)
2 December 2019	Fishtail, US	daily snow depth (Tie)	20.3 cm (8.0 in)	tie	64 years	6 of 100 (Routine)
1 December 2019	Fishtail, US	daily snowfall	22.9 cm (9.0 in)	17.8 cm (7.0 in)	9 years	32 of 100 (Routine)

Extremes by Year

1951 to 2021

Yearly extremes at Fishtail: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	106.7 mm (4.2 in)	2005	39.9 mm (1.6 in)	70
Wettest five days (Rx5day)	170.5 mm (6.7 in)	2005	61.8 mm (2.4 in)	70
Longest dry spell (CDD)	86 days	1987	32 days	70

Wettest day (Rx1day)

The wettest day of the year at Fishtail, 1951 to 2021. The record is 106.7 mm (4.2 in) in 2005, marked on the chart; the median year is 39.9 mm (1.6 in).

Wettest day (Rx1day) at Fishtail by year
Year	Wettest day (Rx1day)
1951	22.9 mm (0.9 in)
1952	61.0 mm (2.4 in)
1953	33.8 mm (1.3 in)
1954	24.4 mm (1.0 in)
1955	22.4 mm (0.9 in)
1956	36.1 mm (1.4 in)
1957	91.9 mm (3.6 in)
1958	31.0 mm (1.2 in)
1959	29.5 mm (1.2 in)
1960	27.9 mm (1.1 in)
1961	38.6 mm (1.5 in)
1962	45.7 mm (1.8 in)
1963	41.9 mm (1.6 in)
1964	39.4 mm (1.6 in)
1965	32.5 mm (1.3 in)
1966	31.2 mm (1.2 in)
1967	40.9 mm (1.6 in)
1968	65.5 mm (2.6 in)
1969	44.5 mm (1.8 in)
1970	44.7 mm (1.8 in)
1971	33.5 mm (1.3 in)
1972	35.1 mm (1.4 in)
1973	30.5 mm (1.2 in)
1974	77.0 mm (3.0 in)
1975	45.0 mm (1.8 in)
1976	47.5 mm (1.9 in)
1977	31.0 mm (1.2 in)
1978	77.7 mm (3.1 in)
1979	22.4 mm (0.9 in)
1980	45.7 mm (1.8 in)
1981	30.7 mm (1.2 in)
1982	35.6 mm (1.4 in)
1983	40.4 mm (1.6 in)
1984	27.7 mm (1.1 in)
1985	33.0 mm (1.3 in)
1986	36.8 mm (1.4 in)
1987	88.9 mm (3.5 in)
1988	61.0 mm (2.4 in)
1989	30.0 mm (1.2 in)
1990	28.7 mm (1.1 in)
1991	38.1 mm (1.5 in)
1992	73.4 mm (2.9 in)
1993	40.6 mm (1.6 in)
1994	53.3 mm (2.1 in)
1995	47.0 mm (1.9 in)
1996	77.5 mm (3.1 in)
1997	84.3 mm (3.3 in)
1998	26.2 mm (1.0 in)
1999	40.1 mm (1.6 in)
2000	73.7 mm (2.9 in)
2001	61.7 mm (2.4 in)
2002	39.6 mm (1.6 in)
2003	33.3 mm (1.3 in)
2004	48.3 mm (1.9 in)
2005	106.7 mm (4.2 in)
2006	50.8 mm (2.0 in)
2007	49.3 mm (1.9 in)
2008	58.4 mm (2.3 in)
2009	30.5 mm (1.2 in)
2010	21.8 mm (0.9 in)
2011	71.6 mm (2.8 in)
2012	35.3 mm (1.4 in)
2013	44.7 mm (1.8 in)
2014	40.6 mm (1.6 in)
2015	36.8 mm (1.4 in)
2016	28.2 mm (1.1 in)
2017	77.7 mm (3.1 in)
2018	22.4 mm (0.9 in)
2019	53.3 mm (2.1 in)
2020	34.3 mm (1.4 in)
2021	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Fishtail, 1951 to 2021. The record is 170.5 mm (6.7 in) in 2005, marked on the chart; the median year is 61.8 mm (2.4 in).

Wettest five days (Rx5day) at Fishtail by year
Year	Wettest five days (Rx5day)
1951	52.4 mm (2.1 in)
1952	91.4 mm (3.6 in)
1953	72.1 mm (2.8 in)
1954	37.6 mm (1.5 in)
1955	45.4 mm (1.8 in)
1956	41.9 mm (1.6 in)
1957	105.6 mm (4.2 in)
1958	54.6 mm (2.1 in)
1959	46.2 mm (1.8 in)
1960	45.7 mm (1.8 in)
1961	64.9 mm (2.6 in)
1962	67.3 mm (2.6 in)
1963	63.7 mm (2.5 in)
1964	58.5 mm (2.3 in)
1965	57.9 mm (2.3 in)
1966	55.1 mm (2.2 in)
1967	127.7 mm (5.0 in)
1968	98.0 mm (3.9 in)
1969	62.3 mm (2.5 in)
1970	61.2 mm (2.4 in)
1971	60.5 mm (2.4 in)
1972	55.3 mm (2.2 in)
1973	44.2 mm (1.7 in)
1974	110.2 mm (4.3 in)
1975	73.3 mm (2.9 in)
1976	93.7 mm (3.7 in)
1977	66.0 mm (2.6 in)
1978	126.7 mm (5.0 in)
1979	33.3 mm (1.3 in)
1980	45.7 mm (1.8 in)
1981	33.5 mm (1.3 in)
1982	68.7 mm (2.7 in)
1983	40.4 mm (1.6 in)
1984	40.4 mm (1.6 in)
1985	33.0 mm (1.3 in)
1986	51.1 mm (2.0 in)
1987	102.8 mm (4.0 in)
1988	97.8 mm (3.9 in)
1989	57.2 mm (2.3 in)
1990	49.8 mm (2.0 in)
1991	105.2 mm (4.1 in)
1992	150.8 mm (5.9 in)
1993	65.6 mm (2.6 in)
1994	87.9 mm (3.5 in)
1995	97.0 mm (3.8 in)
1996	83.3 mm (3.3 in)
1997	100.9 mm (4.0 in)
1998	74.5 mm (2.9 in)
1999	54.9 mm (2.2 in)
2000	117.6 mm (4.6 in)
2001	123.9 mm (4.9 in)
2002	39.9 mm (1.6 in)
2003	55.7 mm (2.2 in)
2004	57.3 mm (2.3 in)
2005	170.5 mm (6.7 in)
2006	54.3 mm (2.1 in)
2007	53.9 mm (2.1 in)
2008	90.7 mm (3.6 in)
2009	51.3 mm (2.0 in)
2010	33.0 mm (1.3 in)
2011	119.7 mm (4.7 in)
2012	54.3 mm (2.1 in)
2013	85.3 mm (3.4 in)
2014	72.7 mm (2.9 in)
2015	78.2 mm (3.1 in)
2016	58.4 mm (2.3 in)
2017	86.1 mm (3.4 in)
2018	50.7 mm (2.0 in)
2019	63.2 mm (2.5 in)
2020	50.8 mm (2.0 in)
2021	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Fishtail, 1951 to 2021. The record is 86 days in 1987, marked on the chart; the median year is 32 days.

Longest dry spell (CDD) at Fishtail by year
Year	Longest dry spell (CDD)
1951	20 days
1952	33 days
1953	49 days
1954	67 days
1955	33 days
1956	23 days
1957	42 days
1958	33 days
1959	27 days
1960	33 days
1961	36 days
1962	39 days
1963	34 days
1964	24 days
1965	23 days
1966	29 days
1967	43 days
1968	20 days
1969	44 days
1970	29 days
1971	38 days
1972	33 days
1973	25 days
1974	35 days
1975	24 days
1976	39 days
1977	45 days
1978	36 days
1979	43 days
1980	25 days
1981	33 days
1982	18 days
1983	33 days
1984	45 days
1985	34 days
1986	24 days
1987	86 days
1988	27 days
1989	16 days
1990	22 days
1991	29 days
1992	43 days
1993	28 days
1994	33 days
1995	25 days
1996	29 days
1997	15 days
1998	26 days
1999	23 days
2000	33 days
2001	31 days
2002	26 days
2003	39 days
2004	32 days
2005	30 days
2006	30 days
2007	41 days
2008	28 days
2009	27 days
2010	26 days
2011	27 days
2012	47 days
2013	27 days
2014	41 days
2015	34 days
2016	61 days
2017	29 days
2018	25 days
2019	22 days
2020	36 days
2021	n/a

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

67 years, 1952 to 2019

A day with at least 40.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 122.3 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Fishtail: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.5 mm (1.6 in)
5 years	56.9 mm (2.2 in)
10 years	69.7 mm (2.7 in)
25 years	88.4 mm (3.5 in)
50 years	104.4 mm (4.1 in)
100 years	122.3 mm (4.8 in)	Longer than the 67 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, 67 years of values from 1952 to 2019.

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: 106.7 mm (4.2 in) in 2005; 91.9 mm (3.6 in) in 1957; 88.9 mm (3.5 in) in 1987.

Download the Data

Data for Fishtail standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fishtail 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).

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	n/a	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

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	n/a	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