Aneth Plt Weather Records (USC00420157)

Record envelope, standing records and threshold days for Aneth Plt (USC00420157), Utah, United States, with 109 years of record.

Key Facts for Aneth Plt

Aneth Plt (USC00420157) is a weather station in Utah, United States at 37.26 latitude and -109.33 longitude, 1,395 m (4,576 ft) above sea level.
The station reports from 1900 to 2008, 109 years of record.
1,464 records set at Aneth Plt still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Aneth Plt set a daily record low maximum temperature of -3.9 C (25.0 F) on 18 January 2008.

About the Station

Location: Utah, United States, 37.26 latitude, -109.33 longitude.
Elevation: 1,395 m (4,576 ft).
Period of record: 1900 to 2008, 109 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 Aneth Plt. 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 Aneth Plt, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.8 C (64.0 F)	-25.6 C (-14.1 F)	n/a	n/a
Feb	25.0 C (77.0 F)	-21.7 C (-7.1 F)	n/a	n/a
Mar	28.9 C (84.0 F)	-12.2 C (10.0 F)	n/a	n/a
Apr	32.2 C (90.0 F)	-9.4 C (15.1 F)	n/a	n/a
May	38.3 C (100.9 F)	-5.6 C (21.9 F)	n/a	n/a
Jun	42.8 C (109.0 F)	3.3 C (37.9 F)	n/a	n/a
Jul	42.8 C (109.0 F)	7.2 C (45.0 F)	n/a	n/a
Aug	43.3 C (109.9 F)	5.0 C (41.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	-2.2 C (28.0 F)	n/a	n/a
Oct	35.0 C (95.0 F)	-8.3 C (17.1 F)	n/a	n/a
Nov	24.4 C (75.9 F)	-15.0 C (5.0 F)	n/a	n/a
Dec	20.0 C (68.0 F)	-27.8 C (-18.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Aneth Plt still stand. 1986 holds the most, with 54.

Standing records at Aneth Plt by the year they were set
Year set	Standing records
1900	20
1901	27
1902	46
1903	48
1904	28
1905	29
1906	28
1907	52
1910	2
1911	40
1912	45
1913	24
1959	12
1961	20
1962	29
1963	26
1965	14
1966	38
1967	10
1968	27
1969	32
1970	28
1971	42
1972	24
1973	31
1974	44
1975	31
1976	26
1977	26
1978	26
1979	32
1980	35
1981	18
1982	40
1983	22
1984	22
1985	17
1986	54
1987	25
1988	10
1989	31
1990	20
1991	15
1992	10
1993	6
1994	13
1995	22
1996	19
1997	12
1998	11
1999	13
2000	15
2001	17
2002	14
2003	24
2004	12
2005	18
2006	24
2007	17
2008	1

All-Time Record Progression

2 new records

2 all-time records were set at Aneth Plt between 14 December 1987 and 21 August 1998. Each dot is a new record.

When Aneth Plt set new all-time records
Date	Kind	Detail
1987-12-14	Record low minimum temperature	Record low minimum temperature -27.8 C (-18.0 F)
1998-08-21	Record daily precipitation	Record daily precipitation 40.6 mm (1.6 in)

Wettest Day of Each Month

Aug: 40.6 mm (1.6 in)

The wettest day on record for each calendar month at Aneth Plt. The most was 40.6 mm (1.6 in) on 21 August 1998.

Record daily precipitation for each month at Aneth Plt
Month	Record daily precipitation (mm)	Date
Jan	25.1 mm (1.0 in)	15 January 1978
Feb	26.9 mm (1.1 in)	22 February 1993
Mar	33.0 mm (1.3 in)	3 March 1973
Apr	24.1 mm (0.9 in)	17 April 1988
May	21.6 mm (0.9 in)	6 May 1976
Jun	25.4 mm (1.0 in)	10 June 1900
Jul	25.4 mm (1.0 in)	26 July 1901
Aug	40.6 mm (1.6 in)	21 August 1998
Sep	34.0 mm (1.3 in)	9 September 2002
Oct	39.9 mm (1.6 in)	22 October 1969
Nov	29.2 mm (1.1 in)	22 November 1902
Dec	39.9 mm (1.6 in)	5 December 1972

Period of Record Coverage

1900 to 2008

61 years of record at Aneth Plt, 1900 to 2008. 38 years have data for under 90 percent of days and are left out of rankings: 1900, 1904, 1906, 1907, 1910, 1911, 1913, 1959 and others.

Days with data per year at Aneth Plt
Year	Days with data	Share of year	Complete
1900	125	34%	No
1901	335	92%	Yes
1902	349	96%	Yes
1903	339	93%	Yes
1904	298	81%	No
1905	354	97%	Yes
1906	303	83%	No
1907	286	78%	No
1910	31	8%	No
1911	304	83%	No
1912	342	93%	Yes
1913	180	49%	No
1959	112	31%	No
1960	23	6%	No
1961	189	52%	No
1962	254	70%	No
1963	125	34%	No
1965	237	65%	No
1966	335	92%	Yes
1967	351	96%	Yes
1968	366	100%	Yes
1969	357	98%	Yes
1970	364	100%	Yes
1971	359	98%	Yes
1972	364	99%	Yes
1973	327	90%	No
1974	365	100%	Yes
1975	362	99%	Yes
1976	360	98%	Yes
1977	364	100%	Yes
1978	364	100%	Yes
1979	362	99%	Yes
1980	363	99%	Yes
1981	361	99%	Yes
1982	350	96%	Yes
1983	357	98%	Yes
1984	300	82%	No
1985	321	88%	No
1986	247	68%	No
1987	240	66%	No
1988	204	56%	No
1989	232	64%	No
1990	243	67%	No
1991	246	67%	No
1992	248	68%	No
1993	256	70%	No
1994	244	67%	No
1995	250	68%	No
1996	201	55%	No
1997	225	62%	No
1998	226	62%	No
1999	229	63%	No
2000	220	60%	No
2001	219	60%	No
2002	191	52%	No
2003	207	57%	No
2004	238	65%	No
2005	244	67%	No
2006	239	65%	No
2007	339	93%	Yes
2008	59	16%	No

Latest Records

Latest records at Aneth Plt
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 January 2008	Aneth Plt, US	daily low max	-3.9 C (25.0 F)	3.9 C (7.0 F)	48 years	31 of 100 (Routine)
18 January 2008	Aneth Plt, US	daily low min (Tie)	-15.0 C (5.0 F)	tie	44 years	5 of 100 (Routine)
7 December 2007	Aneth Plt, US	daily rain	28.4 mm (1.1 in)	15.7 mm (0.6 in)	40 years	46 of 100 (Notable)
7 December 2007	Aneth Plt, US	daily high min	5.0 C (41.0 F)	2.2 C (4.0 F)	12 years	17 of 100 (Routine)
30 November 2007	Aneth Plt, US	daily rain	2.5 mm (0.10 in)	1.2 mm (0.05 in)	36 years	20 of 100 (Routine)
23 November 2007	Aneth Plt, US	daily high max (Tie)	18.9 C (66.0 F)	tie	40 years	5 of 100 (Routine)
20 November 2007	Aneth Plt, US	daily high max	21.1 C (70.0 F)	0.5 C (0.9 F)	30 years	20 of 100 (Routine)
19 November 2007	Aneth Plt, US	daily high max	21.1 C (70.0 F)	1.1 C (2.0 F)	9 years	14 of 100 (Routine)
12 November 2007	Aneth Plt, US	daily high max	21.7 C (71.1 F)	0.6 C (1.1 F)	37 years	22 of 100 (Routine)
11 November 2007	Aneth Plt, US	daily high max (Tie)	22.8 C (73.0 F)	tie	30 years	4 of 100 (Routine)
10 October 2007	Aneth Plt, US	daily high min	16.1 C (61.0 F)	1.1 C (2.0 F)	34 years	22 of 100 (Routine)
23 September 2007	Aneth Plt, US	daily rain	27.9 mm (1.1 in)	21.3 mm (0.8 in)	20 years	48 of 100 (Notable)
27 August 2007	Aneth Plt, US	daily rain	15.2 mm (0.6 in)	5.8 mm (0.23 in)	33 years	20 of 100 (Routine)
21 August 2007	Aneth Plt, US	daily high max (Tie)	37.8 C (100.0 F)	tie	101 years	10 of 100 (Routine)
17 August 2007	Aneth Plt, US	daily high min (Tie)	20.6 C (69.1 F)	tie	32 years	4 of 100 (Routine)
13 August 2007	Aneth Plt, US	daily rain	14.5 mm (0.6 in)	5.6 mm (0.22 in)	24 years	20 of 100 (Routine)
17 July 2007	Aneth Plt, US	daily high min	22.8 C (73.0 F)	0.6 C (1.1 F)	94 years	39 of 100 (Notable)
11 July 2007	Aneth Plt, US	daily high min	25.6 C (78.1 F)	3.9 C (7.0 F)	94 years	50 of 100 (Notable)
10 July 2007	Aneth Plt, US	daily high max (Tie)	40.6 C (105.1 F)	tie	30 years	4 of 100 (Routine)
4 July 2007	Aneth Plt, US	daily high max (Tie)	40.0 C (104.0 F)	tie	33 years	5 of 100 (Routine)

Climate Trend

20 complete years, 1902 to 1985

One stripe for each of 20 complete years at Aneth Plt, 1902 to 1985. Blue stripes are years cooler than the station's own mean of 13.0 C (55.4 F); red stripes are warmer. The coolest year was 1912, at 12.1 C (53.8 F), and the warmest was 1978, at 13.7 C (56.7 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Aneth Plt as warming stripes, 1902 to 1985
Year	Annual mean temperature	Difference from the station mean
1902	12.4 C	-0.58 C
1905	12.1 C	-0.89 C
1912	12.1 C	-0.90 C
1966	13.4 C	+0.45 C
1968	12.6 C	-0.40 C
1969	13.5 C	+0.50 C
1970	13.0 C	-0.02 C
1971	12.9 C	-0.05 C
1972	13.7 C	+0.69 C
1974	13.6 C	+0.58 C
1975	12.2 C	-0.75 C
1976	13.1 C	+0.07 C
1977	13.6 C	+0.61 C
1978	13.7 C	+0.74 C
1979	12.5 C	-0.53 C
1980	12.9 C	-0.06 C
1981	13.6 C	+0.57 C
1982	12.4 C	-0.60 C
1983	13.5 C	+0.47 C
1985	13.0 C	+0.04 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

1900 to 2008

Yearly extremes at Aneth Plt: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	1972	40.0 C (104.0 F)	61
Coldest night (TNn)	-27.8 C (-18.0 F)	1987	-16.1 C (3.0 F)	61
Wettest day (Rx1day)	40.6 mm (1.6 in)	1998	20.8 mm (0.8 in)	61
Wettest five days (Rx5day)	66.8 mm (2.6 in)	1972	27.8 mm (1.1 in)	61
Longest dry spell (CDD)	180 days	2002	56 days	61

Hottest day (TXx)

The hottest day of the year at Aneth Plt, 1900 to 2008. The record is 43.3 C (109.9 F) in 1972, marked on the chart; the median year is 40.0 C (104.0 F).

Hottest day (TXx) at Aneth Plt by year
Year	Hottest day (TXx)
1900	40.6 C (105.1 F)
1901	40.0 C (104.0 F)
1902	41.1 C (106.0 F)
1903	38.9 C (102.0 F)
1904	37.8 C (100.0 F)
1905	38.3 C (100.9 F)
1906	38.9 C (102.0 F)
1907	41.7 C (107.1 F)
1910	15.6 C (60.1 F)
1911	37.2 C (99.0 F)
1912	36.7 C (98.1 F)
1913	39.4 C (102.9 F)
1959	38.3 C (100.9 F)
1960	10.6 C (51.1 F)
1961	40.6 C (105.1 F)
1962	41.1 C (106.0 F)
1963	34.4 C (93.9 F)
1965	38.9 C (102.0 F)
1966	41.7 C (107.1 F)
1967	39.4 C (102.9 F)
1968	38.9 C (102.0 F)
1969	41.1 C (106.0 F)
1970	41.1 C (106.0 F)
1971	42.8 C (109.0 F)
1972	43.3 C (109.9 F)
1973	40.6 C (105.1 F)
1974	43.3 C (109.9 F)
1975	38.9 C (102.0 F)
1976	41.7 C (107.1 F)
1977	39.4 C (102.9 F)
1978	40.6 C (105.1 F)
1979	40.0 C (104.0 F)
1980	38.3 C (100.9 F)
1981	38.3 C (100.9 F)
1982	39.4 C (102.9 F)
1983	39.4 C (102.9 F)
1984	38.3 C (100.9 F)
1985	40.0 C (104.0 F)
1986	33.9 C (93.0 F)
1987	37.2 C (99.0 F)
1988	42.8 C (109.0 F)
1989	42.2 C (108.0 F)
1990	40.6 C (105.1 F)
1991	39.4 C (102.9 F)
1992	37.8 C (100.0 F)
1993	38.9 C (102.0 F)
1994	40.6 C (105.1 F)
1995	40.6 C (105.1 F)
1996	40.0 C (104.0 F)
1997	36.1 C (97.0 F)
1998	40.0 C (104.0 F)
1999	41.1 C (106.0 F)
2000	40.6 C (105.1 F)
2001	40.6 C (105.1 F)
2002	41.7 C (107.1 F)
2003	41.7 C (107.1 F)
2004	40.6 C (105.1 F)
2005	42.8 C (109.0 F)
2006	41.7 C (107.1 F)
2007	41.1 C (106.0 F)
2008	17.2 C (63.0 F)

Coldest night (TNn)

The coldest night of the year at Aneth Plt, 1900 to 2008. The record is -27.8 C (-18.0 F) in 1987, marked on the chart; the median year is -16.1 C (3.0 F).

Coldest night (TNn) at Aneth Plt by year
Year	Coldest night (TNn)
1900	-11.1 C (12.0 F)
1901	-16.1 C (3.0 F)
1902	-18.9 C (-2.0 F)
1903	-20.0 C (-4.0 F)
1904	-18.9 C (-2.0 F)
1905	-16.7 C (1.9 F)
1906	-23.3 C (-9.9 F)
1907	-11.1 C (12.0 F)
1910	-9.4 C (15.1 F)
1911	-17.8 C (0.0 F)
1912	-21.1 C (-6.0 F)
1913	-24.4 C (-11.9 F)
1959	-8.3 C (17.1 F)
1960	-13.9 C (7.0 F)
1961	-25.0 C (-13.0 F)
1962	-21.7 C (-7.1 F)
1963	-22.2 C (-8.0 F)
1965	-10.6 C (12.9 F)
1966	-18.3 C (-0.9 F)
1967	-20.0 C (-4.0 F)
1968	-20.0 C (-4.0 F)
1969	-16.1 C (3.0 F)
1970	-16.7 C (1.9 F)
1971	-22.8 C (-9.0 F)
1972	-18.9 C (-2.0 F)
1973	-18.9 C (-2.0 F)
1974	-16.1 C (3.0 F)
1975	-14.4 C (6.1 F)
1976	-17.8 C (0.0 F)
1977	-25.6 C (-14.1 F)
1978	-22.8 C (-9.0 F)
1979	-21.7 C (-7.1 F)
1980	-12.8 C (9.0 F)
1981	-12.8 C (9.0 F)
1982	-21.7 C (-7.1 F)
1983	-12.2 C (10.0 F)
1984	-14.4 C (6.1 F)
1985	-15.0 C (5.0 F)
1986	-12.8 C (9.0 F)
1987	-27.8 C (-18.0 F)
1988	-13.9 C (7.0 F)
1989	-19.4 C (-2.9 F)
1990	-26.7 C (-16.1 F)
1991	-20.0 C (-4.0 F)
1992	-21.1 C (-6.0 F)
1993	-10.0 C (14.0 F)
1994	-12.8 C (9.0 F)
1995	-12.8 C (9.0 F)
1996	-12.8 C (9.0 F)
1997	-18.3 C (-0.9 F)
1998	-12.8 C (9.0 F)
1999	-10.0 C (14.0 F)
2000	-15.6 C (3.9 F)
2001	-10.6 C (12.9 F)
2002	-12.2 C (10.0 F)
2003	-10.6 C (12.9 F)
2004	-10.6 C (12.9 F)
2005	-15.0 C (5.0 F)
2006	-11.1 C (12.0 F)
2007	-15.0 C (5.0 F)
2008	-15.0 C (5.0 F)

Wettest day (Rx1day)

The wettest day of the year at Aneth Plt, 1900 to 2008. The record is 40.6 mm (1.6 in) in 1998, marked on the chart; the median year is 20.8 mm (0.8 in).

Wettest day (Rx1day) at Aneth Plt by year
Year	Wettest day (Rx1day)
1900	31.8 mm (1.3 in)
1901	25.4 mm (1.0 in)
1902	29.2 mm (1.1 in)
1903	13.5 mm (0.5 in)
1904	12.7 mm (0.5 in)
1905	24.1 mm (0.9 in)
1906	12.7 mm (0.5 in)
1907	17.3 mm (0.7 in)
1910	4.6 mm (0.18 in)
1911	21.3 mm (0.8 in)
1912	12.7 mm (0.5 in)
1913	14.7 mm (0.6 in)
1959	21.3 mm (0.8 in)
1960	4.8 mm (0.19 in)
1961	19.1 mm (0.8 in)
1962	20.1 mm (0.8 in)
1963	11.9 mm (0.5 in)
1965	25.4 mm (1.0 in)
1966	17.0 mm (0.7 in)
1967	14.2 mm (0.6 in)
1968	24.6 mm (1.0 in)
1969	39.9 mm (1.6 in)
1970	20.3 mm (0.8 in)
1971	23.6 mm (0.9 in)
1972	39.9 mm (1.6 in)
1973	33.0 mm (1.3 in)
1974	38.1 mm (1.5 in)
1975	15.2 mm (0.6 in)
1976	29.2 mm (1.1 in)
1977	13.2 mm (0.5 in)
1978	25.1 mm (1.0 in)
1979	32.3 mm (1.3 in)
1980	25.4 mm (1.0 in)
1981	13.7 mm (0.5 in)
1982	18.8 mm (0.7 in)
1983	20.8 mm (0.8 in)
1984	14.0 mm (0.6 in)
1985	21.3 mm (0.8 in)
1986	25.9 mm (1.0 in)
1987	21.6 mm (0.9 in)
1988	24.1 mm (0.9 in)
1989	12.7 mm (0.5 in)
1990	11.9 mm (0.5 in)
1991	20.8 mm (0.8 in)
1992	17.8 mm (0.7 in)
1993	26.9 mm (1.1 in)
1994	17.8 mm (0.7 in)
1995	19.6 mm (0.8 in)
1996	19.1 mm (0.8 in)
1997	15.5 mm (0.6 in)
1998	40.6 mm (1.6 in)
1999	22.9 mm (0.9 in)
2000	29.2 mm (1.1 in)
2001	34.0 mm (1.3 in)
2002	34.0 mm (1.3 in)
2003	24.1 mm (0.9 in)
2004	21.8 mm (0.9 in)
2005	16.5 mm (0.6 in)
2006	20.3 mm (0.8 in)
2007	28.4 mm (1.1 in)
2008	12.2 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Aneth Plt, 1900 to 2008. The record is 66.8 mm (2.6 in) in 1972, marked on the chart; the median year is 27.8 mm (1.1 in).

Wettest five days (Rx5day) at Aneth Plt by year
Year	Wettest five days (Rx5day)
1900	25.4 mm (1.0 in)
1901	26.7 mm (1.1 in)
1902	29.2 mm (1.1 in)
1903	13.5 mm (0.5 in)
1904	13.2 mm (0.5 in)
1905	38.9 mm (1.5 in)
1906	16.1 mm (0.6 in)
1907	25.9 mm (1.0 in)
1910	6.1 mm (0.24 in)
1911	43.6 mm (1.7 in)
1912	17.3 mm (0.7 in)
1913	21.8 mm (0.9 in)
1959	24.1 mm (0.9 in)
1960	7.8 mm (0.31 in)
1961	25.5 mm (1.0 in)
1962	57.6 mm (2.3 in)
1963	19.8 mm (0.8 in)
1965	38.8 mm (1.5 in)
1966	34.5 mm (1.4 in)
1967	17.5 mm (0.7 in)
1968	28.4 mm (1.1 in)
1969	41.1 mm (1.6 in)
1970	23.6 mm (0.9 in)
1971	23.6 mm (0.9 in)
1972	66.8 mm (2.6 in)
1973	33.0 mm (1.3 in)
1974	58.1 mm (2.3 in)
1975	27.8 mm (1.1 in)
1976	49.0 mm (1.9 in)
1977	26.4 mm (1.0 in)
1978	36.7 mm (1.4 in)
1979	32.3 mm (1.3 in)
1980	33.0 mm (1.3 in)
1981	13.7 mm (0.5 in)
1982	30.3 mm (1.2 in)
1983	27.9 mm (1.1 in)
1984	25.5 mm (1.0 in)
1985	31.5 mm (1.2 in)
1986	32.0 mm (1.3 in)
1987	46.2 mm (1.8 in)
1988	30.2 mm (1.2 in)
1989	12.9 mm (0.5 in)
1990	18.2 mm (0.7 in)
1991	20.6 mm (0.8 in)
1992	30.5 mm (1.2 in)
1993	46.3 mm (1.8 in)
1994	28.2 mm (1.1 in)
1995	20.1 mm (0.8 in)
1996	25.3 mm (1.0 in)
1997	18.3 mm (0.7 in)
1998	40.6 mm (1.6 in)
1999	26.5 mm (1.0 in)
2000	38.1 mm (1.5 in)
2001	42.9 mm (1.7 in)
2002	37.9 mm (1.5 in)
2003	45.7 mm (1.8 in)
2004	21.8 mm (0.9 in)
2005	21.8 mm (0.9 in)
2006	20.3 mm (0.8 in)
2007	36.0 mm (1.4 in)
2008	15.3 mm (0.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Aneth Plt, 1900 to 2008. The record is 180 days in 2002, marked on the chart; the median year is 56 days.

Longest dry spell (CDD) at Aneth Plt by year
Year	Longest dry spell (CDD)
1900	31 days
1901	65 days
1902	51 days
1903	89 days
1904	56 days
1905	65 days
1906	56 days
1907	34 days
1910	19 days
1911	21 days
1912	29 days
1913	22 days
1959	37 days
1960	18 days
1961	57 days
1962	49 days
1963	43 days
1965	27 days
1966	63 days
1967	65 days
1968	72 days
1969	38 days
1970	52 days
1971	90 days
1972	156 days
1973	73 days
1974	85 days
1975	41 days
1976	58 days
1977	51 days
1978	71 days
1979	65 days
1980	51 days
1981	35 days
1982	76 days
1983	37 days
1984	39 days
1985	37 days
1986	30 days
1987	46 days
1988	32 days
1989	88 days
1990	41 days
1991	60 days
1992	50 days
1993	80 days
1994	75 days
1995	43 days
1996	37 days
1997	84 days
1998	73 days
1999	78 days
2000	74 days
2001	64 days
2002	180 days
2003	71 days
2004	106 days
2005	50 days
2006	61 days
2007	81 days
2008	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

20 years with a frost

Across 20 years with a frost, the median last spring frost at Aneth Plt falls on 21 April and the median first autumn frost on 16 October, which leaves a median of 180 days between them.

Frost dates and growing season at Aneth Plt
Measure	Median, all years	Earliest period	Recent period (1902 to 1985)	Recent against earliest	Fitted trend
Last spring frost	21 April	n/a	21 April	n/a	n/a
First autumn frost	16 October	n/a	16 October	n/a	n/a
Growing days	180 days	n/a	180 days	n/a	n/a

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.

Download the Data

Data for Aneth Plt standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Aneth Plt 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).