Hayden Fork Weather Records (USS0010J44S)

Record envelope, standing records and threshold days for Hayden Fork (USS0010J44S), Utah, United States, with 49 years of record.

Key Facts for Hayden Fork

Hayden Fork (USS0010J44S) is a weather station in Utah, United States at 40.80 latitude and -110.88 longitude, 2,808 m (9,212 ft) above sea level.
The station reports from 1978 to 2026, 49 years of record.
1,464 records set at Hayden Fork still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Hayden Fork tied a daily record precipitation of 20.3 mm (0.8 in) on 18 September 2026 (provisional).

Provisional Records

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

About the Station

Location: Utah, United States, 40.80 latitude, -110.88 longitude.
Elevation: 2,808 m (9,212 ft).
Period of record: 1978 to 2026, 49 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

42 days at or beyond a record

The band shows the record high and record low for each calendar day at Hayden Fork. The lines show the 2026 daily maximum and minimum. 42 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Hayden Fork, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	16.8 C (62.2 F)	-30.0 C (-22.0 F)	6.7 C (44.1 F)	-24.2 C (-11.6 F)
Feb	14.2 C (57.6 F)	-29.3 C (-20.7 F)	9.9 C (49.8 F)	-18.9 C (-2.0 F)
Mar	18.2 C (64.8 F)	-23.6 C (-10.5 F)	18.2 C (64.8 F)	-18.4 C (-1.1 F)
Apr	19.4 C (66.9 F)	-21.7 C (-7.1 F)	15.4 C (59.7 F)	-15.8 C (3.6 F)
May	22.6 C (72.7 F)	-15.5 C (4.1 F)	21.3 C (70.3 F)	-8.9 C (16.0 F)
Jun	27.0 C (80.6 F)	-7.9 C (17.8 F)	23.5 C (74.3 F)	-5.3 C (22.5 F)
Jul	28.8 C (83.8 F)	-1.4 C (29.5 F)	28.8 C (83.8 F)	2.8 C (37.0 F)
Aug	29.7 C (85.5 F)	-1.6 C (29.1 F)	27.5 C (81.5 F)	3.7 C (38.7 F)
Sep	27.7 C (81.9 F)	-8.4 C (16.9 F)	21.7 C (71.1 F)	-1.6 C (29.1 F)
Oct	22.2 C (72.0 F)	-25.9 C (-14.6 F)	21.0 C (69.8 F)	0.0 C (32.0 F)
Nov	17.7 C (63.9 F)	-27.8 C (-18.0 F)	n/a	n/a
Dec	13.3 C (55.9 F)	-30.0 C (-22.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Hayden Fork still stand. 2015 holds the most, with 138.

All-Time Record Progression

1 new records

1 all-time records were set at Hayden Fork between 18 August 2021 and 18 August 2021. Each dot is a new record.

Wettest Day of Each Month

Aug: 94.0 mm (3.7 in)

The wettest day on record for each calendar month at Hayden Fork. The most was 94.0 mm (3.7 in) on 18 August 2021.

Record daily precipitation for each month at Hayden Fork
Month	Record daily precipitation (mm)	Date
Jan	48.3 mm (1.9 in)	13 January 1980
Feb	38.1 mm (1.5 in)	18 February 1980
Mar	43.2 mm (1.7 in)	29 March 1981
Apr	30.5 mm (1.2 in)	6 April 1982
May	38.1 mm (1.5 in)	10 May 2005
Jun	38.1 mm (1.5 in)	6 June 2020
Jul	38.1 mm (1.5 in)	9 July 1980
Aug	94.0 mm (3.7 in)	18 August 2021
Sep	53.3 mm (2.1 in)	14 September 1980
Oct	33.0 mm (1.3 in)	8 October 2011
Nov	43.2 mm (1.7 in)	9 November 1995
Dec	48.3 mm (1.9 in)	13 December 2009

Period of Record Coverage

2013 to 2026

14 years of record at Hayden Fork, 2013 to 2026. 1 years have data for under 90 percent of days and are left out of rankings: 2026.

Days with data per year at Hayden Fork
Year	Days with data	Share of year	Complete
2013	329	90%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	365	100%	Yes
2017	365	100%	Yes
2018	365	100%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	362	99%	Yes
2023	363	99%	Yes
2024	365	100%	Yes
2025	363	99%	Yes
2026	282	77%	No

Latest Records

Latest records at Hayden Fork
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 September 2026	Hayden Fork, US	daily rain (Tie, Provisional)	20.3 mm (0.8 in)	tie	28 years	3 of 100 (Routine)
30 August 2026	Hayden Fork, US	daily rain (Provisional)	17.8 mm (0.7 in)	7.6 mm (0.30 in)	40 years	20 of 100 (Routine)
29 August 2026	Hayden Fork, US	daily rain (Provisional)	35.6 mm (1.4 in)	25.4 mm (1.0 in)	23 years	45 of 100 (Notable)
24 August 2026	Hayden Fork, US	daily rain (Provisional)	17.8 mm (0.7 in)	2.6 mm (0.10 in)	35 years	17 of 100 (Routine)
10 August 2026	Hayden Fork, US	daily rain	17.8 mm (0.7 in)	7.6 mm (0.30 in)	28 years	20 of 100 (Routine)
9 August 2026	Hayden Fork, US	daily rain	27.9 mm (1.1 in)	7.6 mm (0.30 in)	32 years	23 of 100 (Routine)
21 July 2026	Hayden Fork, US	daily rain	30.5 mm (1.2 in)	15.3 mm (0.6 in)	40 years	45 of 100 (Notable)
18 July 2026	Hayden Fork, US	daily rain (Tie)	10.2 mm (0.4 in)	tie	21 years	2 of 100 (Routine)
29 May 2026	Hayden Fork, US	daily rain (Tie)	22.9 mm (0.9 in)	tie	4 years	1 of 100 (Routine)
17 May 2026	Hayden Fork, US	daily rain	17.8 mm (0.7 in)	5.1 mm (0.20 in)	44 years	20 of 100 (Routine)
5 May 2026	Hayden Fork, US	daily rain	22.9 mm (0.9 in)	7.7 mm (0.30 in)	1 year	19 of 100 (Routine)
2 April 2026	Hayden Fork, US	daily rain	25.4 mm (1.0 in)	2.5 mm (0.10 in)	16 years	13 of 100 (Routine)
17 February 2026	Hayden Fork, US	daily rain	27.9 mm (1.1 in)	2.5 mm (0.10 in)	40 years	20 of 100 (Routine)
27 December 2025	Hayden Fork, US	daily rain (Tie)	17.8 mm (0.7 in)	tie	4 years	1 of 100 (Routine)
16 October 2025	Hayden Fork, US	daily rain	17.8 mm (0.7 in)	2.6 mm (0.10 in)	19 years	13 of 100 (Routine)
30 September 2025	Hayden Fork, US	daily rain (Tie)	7.6 mm (0.30 in)	tie	11 years	1 of 100 (Routine)
31 March 2025	Hayden Fork, US	daily rain (Tie)	17.8 mm (0.7 in)	tie	8 years	1 of 100 (Routine)
7 February 2025	Hayden Fork, US	daily rain (Tie)	25.4 mm (1.0 in)	tie	17 years	2 of 100 (Routine)
28 December 2024	Hayden Fork, US	daily rain	15.2 mm (0.6 in)	5.0 mm (0.20 in)	26 years	19 of 100 (Routine)
29 October 2024	Hayden Fork, US	daily rain	25.4 mm (1.0 in)	15.2 mm (0.6 in)	43 years	42 of 100 (Notable)

Climate Trend

12 complete years, 2014 to 2025

One stripe for each of 12 complete years at Hayden Fork, 2014 to 2025. Blue stripes are years cooler than the station's own mean of 3.0 C (37.4 F); red stripes are warmer. The coolest year was 2019, at 2.0 C (35.6 F), and the warmest was 2025, at 3.7 C (38.7 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Hayden Fork as warming stripes, 2014 to 2025
Year	Annual mean temperature	Difference from the station mean
2014	2.8 C	-0.21 C
2015	3.6 C	+0.57 C
2016	3.5 C	+0.51 C
2017	3.3 C	+0.31 C
2018	3.0 C	+0.01 C
2019	2.0 C	-0.97 C
2020	3.0 C	-0.02 C
2021	3.2 C	+0.18 C
2022	2.2 C	-0.81 C
2023	2.4 C	-0.57 C
2024	3.3 C	+0.32 C
2025	3.7 C	+0.73 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

1978 to 2026

Yearly extremes at Hayden Fork: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	29.7 C (85.5 F)	2020	27.1 C (80.8 F)	14
Coldest night (TNn)	-30.0 C (-22.0 F)	2013	-28.1 C (-18.7 F)	14
Wettest day (Rx1day)	94.0 mm (3.7 in)	2021	33.0 mm (1.3 in)	49
Wettest five days (Rx5day)	155.0 mm (6.1 in)	2021	66.1 mm (2.6 in)	49
Longest dry spell (CDD)	49 days	2016	23 days	49

Hottest day (TXx)

The hottest day of the year at Hayden Fork, 1978 to 2026. The record is 29.7 C (85.5 F) in 2020, marked on the chart; the median year is 27.1 C (80.8 F).

Hottest day (TXx) at Hayden Fork by year
Year	Hottest day (TXx)
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	26.9 C (80.4 F)
2014	26.5 C (79.7 F)
2015	25.6 C (78.1 F)
2016	27.1 C (80.8 F)
2017	26.9 C (80.4 F)
2018	27.1 C (80.8 F)
2019	26.8 C (80.2 F)
2020	29.7 C (85.5 F)
2021	27.0 C (80.6 F)
2022	27.7 C (81.9 F)
2023	27.8 C (82.0 F)
2024	28.0 C (82.4 F)
2025	28.9 C (84.0 F)
2026	28.8 C (83.8 F)

Coldest night (TNn)

The coldest night of the year at Hayden Fork, 1978 to 2026. The record is -30.0 C (-22.0 F) in 2013, marked on the chart; the median year is -28.1 C (-18.7 F).

Coldest night (TNn) at Hayden Fork by year
Year	Coldest night (TNn)
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	-30.0 C (-22.0 F)
2014	-27.8 C (-18.0 F)
2015	-26.2 C (-15.2 F)
2016	-29.4 C (-20.9 F)
2017	-28.0 C (-18.4 F)
2018	-26.6 C (-15.9 F)
2019	-28.3 C (-18.9 F)
2020	-29.3 C (-20.7 F)
2021	-25.0 C (-13.0 F)
2022	-28.4 C (-19.1 F)
2023	-30.0 C (-22.0 F)
2024	-23.9 C (-11.0 F)
2025	-30.0 C (-22.0 F)
2026	-24.2 C (-11.6 F)

Wettest day (Rx1day)

The wettest day of the year at Hayden Fork, 1978 to 2026. The record is 94.0 mm (3.7 in) in 2021, marked on the chart; the median year is 33.0 mm (1.3 in).

Wettest day (Rx1day) at Hayden Fork by year
Year	Wettest day (Rx1day)
1978	22.9 mm (0.9 in)
1979	25.4 mm (1.0 in)
1980	53.3 mm (2.1 in)
1981	43.2 mm (1.7 in)
1982	38.1 mm (1.5 in)
1983	27.9 mm (1.1 in)
1984	33.0 mm (1.3 in)
1985	33.0 mm (1.3 in)
1986	25.4 mm (1.0 in)
1987	17.8 mm (0.7 in)
1988	27.9 mm (1.1 in)
1989	38.1 mm (1.5 in)
1990	33.0 mm (1.3 in)
1991	30.5 mm (1.2 in)
1992	22.9 mm (0.9 in)
1993	38.1 mm (1.5 in)
1994	27.9 mm (1.1 in)
1995	43.2 mm (1.7 in)
1996	30.5 mm (1.2 in)
1997	27.9 mm (1.1 in)
1998	35.6 mm (1.4 in)
1999	35.6 mm (1.4 in)
2000	30.5 mm (1.2 in)
2001	27.9 mm (1.1 in)
2002	30.5 mm (1.2 in)
2003	27.9 mm (1.1 in)
2004	30.5 mm (1.2 in)
2005	38.1 mm (1.5 in)
2006	30.5 mm (1.2 in)
2007	50.8 mm (2.0 in)
2008	27.9 mm (1.1 in)
2009	48.3 mm (1.9 in)
2010	38.1 mm (1.5 in)
2011	33.0 mm (1.3 in)
2012	40.6 mm (1.6 in)
2013	25.4 mm (1.0 in)
2014	53.3 mm (2.1 in)
2015	27.9 mm (1.1 in)
2016	38.1 mm (1.5 in)
2017	45.7 mm (1.8 in)
2018	30.5 mm (1.2 in)
2019	33.0 mm (1.3 in)
2020	38.1 mm (1.5 in)
2021	94.0 mm (3.7 in)
2022	38.1 mm (1.5 in)
2023	35.6 mm (1.4 in)
2024	33.0 mm (1.3 in)
2025	25.4 mm (1.0 in)
2026	35.6 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hayden Fork, 1978 to 2026. The record is 155.0 mm (6.1 in) in 2021, marked on the chart; the median year is 66.1 mm (2.6 in).

Wettest five days (Rx5day) at Hayden Fork by year
Year	Wettest five days (Rx5day)
1978	68.6 mm (2.7 in)
1979	68.6 mm (2.7 in)
1980	122.0 mm (4.8 in)
1981	104.1 mm (4.1 in)
1982	86.3 mm (3.4 in)
1983	53.3 mm (2.1 in)
1984	50.9 mm (2.0 in)
1985	78.7 mm (3.1 in)
1986	101.6 mm (4.0 in)
1987	38.0 mm (1.5 in)
1988	48.2 mm (1.9 in)
1989	63.4 mm (2.5 in)
1990	66.0 mm (2.6 in)
1991	61.0 mm (2.4 in)
1992	58.4 mm (2.3 in)
1993	68.5 mm (2.7 in)
1994	76.2 mm (3.0 in)
1995	91.4 mm (3.6 in)
1996	66.1 mm (2.6 in)
1997	58.5 mm (2.3 in)
1998	86.3 mm (3.4 in)
1999	73.7 mm (2.9 in)
2000	66.0 mm (2.6 in)
2001	63.4 mm (2.5 in)
2002	50.8 mm (2.0 in)
2003	61.0 mm (2.4 in)
2004	99.1 mm (3.9 in)
2005	106.8 mm (4.2 in)
2006	71.2 mm (2.8 in)
2007	76.2 mm (3.0 in)
2008	66.0 mm (2.6 in)
2009	66.0 mm (2.6 in)
2010	114.2 mm (4.5 in)
2011	76.2 mm (3.0 in)
2012	55.9 mm (2.2 in)
2013	43.2 mm (1.7 in)
2014	88.8 mm (3.5 in)
2015	63.5 mm (2.5 in)
2016	81.2 mm (3.2 in)
2017	93.9 mm (3.7 in)
2018	63.5 mm (2.5 in)
2019	66.0 mm (2.6 in)
2020	60.9 mm (2.4 in)
2021	155.0 mm (6.1 in)
2022	53.4 mm (2.1 in)
2023	58.5 mm (2.3 in)
2024	68.7 mm (2.7 in)
2025	55.9 mm (2.2 in)
2026	68.6 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hayden Fork, 1978 to 2026. The record is 49 days in 2016, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Hayden Fork by year
Year	Longest dry spell (CDD)
1978	22 days
1979	22 days
1980	47 days
1981	33 days
1982	16 days
1983	12 days
1984	23 days
1985	20 days
1986	31 days
1987	20 days
1988	28 days
1989	18 days
1990	15 days
1991	23 days
1992	25 days
1993	21 days
1994	33 days
1995	21 days
1996	24 days
1997	23 days
1998	20 days
1999	23 days
2000	17 days
2001	24 days
2002	18 days
2003	45 days
2004	19 days
2005	22 days
2006	31 days
2007	25 days
2008	41 days
2009	34 days
2010	15 days
2011	13 days
2012	38 days
2013	37 days
2014	21 days
2015	19 days
2016	49 days
2017	30 days
2018	23 days
2019	27 days
2020	27 days
2021	31 days
2022	16 days
2023	20 days
2024	25 days
2025	43 days
2026	25 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

47 years, 1979 to 2025

A day with at least 32.6 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 77.6 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Hayden Fork: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.6 mm (1.3 in)
5 years	41.2 mm (1.6 in)
10 years	48.1 mm (1.9 in)
25 years	58.4 mm (2.3 in)
50 years	67.4 mm (2.7 in)	Longer than the 47 years of record
100 years	77.6 mm (3.1 in)	Longer than the 47 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, 47 years of values from 1979 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: 94.0 mm (3.7 in) in 2021; 53.3 mm (2.1 in) in 1980; 53.3 mm (2.1 in) in 2014.

Download the Data

Data for Hayden Fork standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hayden Fork 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).