Record envelope, standing records and threshold days for Marysvale (USC00425477), Utah, United States, with 111 years of record.
Key Facts for Marysvale
Marysvale (USC00425477) is a weather station in Utah, United States at 38.45 latitude and -112.22 longitude, 1,782 m (5,845 ft) above sea level.
The station reports from 1913 to 2023, 111 years of record.
1,464 records set at Marysvale still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Marysvale set a daily record precipitation of 7.2 mm (0.28 in) on 8 January 2026.
About the Station
Location: Utah, United States, 38.45 latitude, -112.22 longitude.
Elevation: 1,782 m (5,845 ft).
Period of record: 1913 to 2023, 111 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Marysvale. 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 Marysvale, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.3 C (64.9 F)
-32.8 C (-27.0 F)
n/a
n/a
Feb
22.8 C (73.0 F)
-33.3 C (-27.9 F)
n/a
n/a
Mar
27.2 C (81.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-13.9 C (7.0 F)
n/a
n/a
May
36.7 C (98.1 F)
-8.3 C (17.1 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
38.9 C (102.0 F)
0.6 C (33.1 F)
n/a
n/a
Aug
38.9 C (102.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
37.2 C (99.0 F)
-6.7 C (19.9 F)
n/a
n/a
Oct
31.1 C (88.0 F)
-17.2 C (1.0 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-25.6 C (-14.1 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Marysvale still stand. 1990 holds the most, with 40.
Standing records at Marysvale by the year they were set
Year set
Standing records
1913
22
1914
2
1915
24
1916
3
1917
35
1918
9
1954
17
1955
27
1956
32
1957
23
1958
14
1959
20
1960
27
1961
18
1962
38
1963
32
1964
18
1965
27
1966
22
1971
9
1972
36
1973
14
1974
16
1975
29
1976
17
1977
22
1978
19
1979
34
1980
29
1981
22
1982
18
1983
11
1984
15
1985
25
1986
28
1987
13
1988
23
1989
33
1990
40
1991
13
1992
16
1993
12
1994
25
1995
34
1996
37
1997
17
1998
22
1999
27
2000
37
2001
26
2002
25
2003
24
2004
27
2005
21
2006
24
2007
22
2008
16
2009
20
2010
13
2011
13
2016
1
2018
7
2019
30
2020
26
2021
15
2022
35
2023
16
All-Time Record Progression
6 new records
6 all-time records were set at Marysvale between 6 February 1989 and 3 January 2004. Each dot is a new record.
When Marysvale set new all-time records
Date
Kind
Detail
1989-02-06
Record low minimum temperature
Record low minimum temperature -31.1 C (-24.0 F)
1989-02-07
Record low minimum temperature
Record low minimum temperature -33.3 C (-27.9 F)
1990-12-22
Record low maximum temperature
Record low maximum temperature -17.2 C (1.0 F)
1990-12-22
Record low minimum temperature
Record low minimum temperature -37.2 C (-35.0 F)
1990-12-23
Record low maximum temperature
Record low maximum temperature -18.3 C (-0.9 F)
2004-01-03
Record daily snowfall
Record daily snowfall 27.9 cm (11.0 in)
Wettest Day of Each Month
Aug: 83.8 mm (3.3 in)
The wettest day on record for each calendar month at Marysvale. The most was 83.8 mm (3.3 in) on 4 August 1913.
Record daily precipitation for each month at Marysvale
Month
Record daily precipitation (mm)
Date
Jan
50.8 mm (2.0 in)
21 January 2012
Feb
22.9 mm (0.9 in)
20 February 2010
Mar
28.4 mm (1.1 in)
28 March 1985
Apr
20.3 mm (0.8 in)
29 April 1957
May
50.8 mm (2.0 in)
17 May 2010
Jun
58.4 mm (2.3 in)
12 June 1913
Jul
76.7 mm (3.0 in)
7 July 1913
Aug
83.8 mm (3.3 in)
4 August 1913
Sep
19.1 mm (0.8 in)
18 September 1963
Oct
24.9 mm (1.0 in)
12 October 1980
Nov
45.7 mm (1.8 in)
7 November 2011
Dec
51.3 mm (2.0 in)
18 December 1914
Period of Record Coverage
1913 to 2023
Complete yearUnder 90 percent of days
68 years of record at Marysvale, 1913 to 2023. 17 years have data for under 90 percent of days and are left out of rankings: 1913, 1914, 1915, 1916, 1917, 1918, 1954, 1955 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 51 complete years at Marysvale, 1956 to 2022. Blue stripes are years cooler than the station's own mean of 9.1 C (48.3 F); red stripes are warmer. The coolest year was 1979, at 7.9 C (46.2 F), and the warmest was 2000, at 10.5 C (50.9 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Marysvale as warming stripes, 1956 to 2022
Year
Annual mean temperature
Difference from the station mean
1956
9.0 C
-0.08 C
1957
8.6 C
-0.45 C
1958
9.1 C
+0.05 C
1959
9.1 C
+0.02 C
1960
8.9 C
-0.15 C
1961
8.4 C
-0.69 C
1962
8.4 C
-0.68 C
1963
8.9 C
-0.19 C
1966
9.5 C
+0.42 C
1972
9.1 C
+0.06 C
1973
8.7 C
-0.37 C
1974
9.0 C
-0.03 C
1975
8.0 C
-1.10 C
1976
8.8 C
-0.27 C
1977
9.5 C
+0.44 C
1978
9.5 C
+0.44 C
1979
7.9 C
-1.15 C
1980
8.6 C
-0.46 C
1981
10.0 C
+0.94 C
1982
7.9 C
-1.13 C
1983
9.1 C
+0.06 C
1984
8.4 C
-0.70 C
1985
8.5 C
-0.61 C
1986
9.7 C
+0.66 C
1987
8.8 C
-0.27 C
1988
9.1 C
+0.00 C
1989
8.8 C
-0.26 C
1990
9.2 C
+0.17 C
1991
8.4 C
-0.71 C
1992
9.5 C
+0.42 C
1993
8.8 C
-0.27 C
1994
9.8 C
+0.75 C
1995
9.6 C
+0.56 C
1996
10.0 C
+0.90 C
1997
9.1 C
+0.04 C
1998
9.0 C
-0.05 C
1999
9.8 C
+0.76 C
2000
10.5 C
+1.45 C
2001
10.0 C
+0.95 C
2002
9.4 C
+0.37 C
2003
10.3 C
+1.21 C
2004
9.0 C
-0.08 C
2005
10.0 C
+0.97 C
2006
9.4 C
+0.36 C
2007
9.7 C
+0.61 C
2008
8.7 C
-0.39 C
2009
9.0 C
-0.03 C
2019
8.0 C
-1.09 C
2020
8.6 C
-0.48 C
2021
9.0 C
-0.11 C
2022
8.2 C
-0.87 C
The fitted trend in annual mean temperature here over 1956 to 2022 is 0.06 C (-0.04 to 0.16) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 51 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Marysvale
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.06 C (-0.04 to 0.16) per decade
0.1 F (-0.1 to 0.3) per decade
1956 to 2022
51
Not clearly different from zero
Mean daily maximum
0.07 C (-0.04 to 0.19) per decade
0.1 F (-0.1 to 0.3) per decade
1956 to 2022
51
Not clearly different from zero
Mean daily minimum
0.05 C (-0.08 to 0.18) per decade
0.1 F (-0.2 to 0.3) per decade
1956 to 2022
51
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
1913 to 2026
Yearly extremes at Marysvale: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.9 C (102.0 F)
1979
36.1 C (97.0 F)
68
Coldest night (TNn)
-37.2 C (-35.0 F)
1990
-22.2 C (-8.0 F)
68
Wettest day (Rx1day)
83.8 mm (3.3 in)
1913
17.1 mm (0.7 in)
76
Wettest five days (Rx5day)
57.1 mm (2.2 in)
2018
25.6 mm (1.0 in)
75
Longest dry spell (CDD)
109 days
1972
37 days
76
Hottest day (TXx)
The hottest day of the year at Marysvale, 1913 to 2026. The record is 38.9 C (102.0 F) in 1979, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Marysvale by year
Year
Hottest day (TXx)
1913
36.7 C (98.1 F)
1914
28.9 C (84.0 F)
1915
32.2 C (90.0 F)
1916
34.4 C (93.9 F)
1917
36.1 C (97.0 F)
1918
21.1 C (70.0 F)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1954
36.7 C (98.1 F)
1955
37.2 C (99.0 F)
1956
35.0 C (95.0 F)
1957
35.6 C (96.1 F)
1958
35.6 C (96.1 F)
1959
36.7 C (98.1 F)
1960
38.3 C (100.9 F)
1961
36.7 C (98.1 F)
1962
36.1 C (97.0 F)
1963
35.6 C (96.1 F)
1964
33.9 C (93.0 F)
1965
32.2 C (90.0 F)
1966
34.4 C (93.9 F)
1971
36.1 C (97.0 F)
1972
37.8 C (100.0 F)
1973
38.3 C (100.9 F)
1974
36.1 C (97.0 F)
1975
36.1 C (97.0 F)
1976
37.8 C (100.0 F)
1977
36.1 C (97.0 F)
1978
37.8 C (100.0 F)
1979
38.9 C (102.0 F)
1980
36.1 C (97.0 F)
1981
37.2 C (99.0 F)
1982
34.4 C (93.9 F)
1983
35.0 C (95.0 F)
1984
35.0 C (95.0 F)
1985
37.8 C (100.0 F)
1986
35.6 C (96.1 F)
1987
34.4 C (93.9 F)
1988
35.6 C (96.1 F)
1989
37.2 C (99.0 F)
1990
36.1 C (97.0 F)
1991
34.4 C (93.9 F)
1992
36.1 C (97.0 F)
1993
35.0 C (95.0 F)
1994
37.8 C (100.0 F)
1995
37.2 C (99.0 F)
1996
36.7 C (98.1 F)
1997
36.1 C (97.0 F)
1998
38.3 C (100.9 F)
1999
36.1 C (97.0 F)
2000
38.3 C (100.9 F)
2001
36.7 C (98.1 F)
2002
38.9 C (102.0 F)
2003
38.3 C (100.9 F)
2004
34.4 C (93.9 F)
2005
37.8 C (100.0 F)
2006
37.2 C (99.0 F)
2007
36.7 C (98.1 F)
2008
36.1 C (97.0 F)
2009
36.1 C (97.0 F)
2010
36.1 C (97.0 F)
2011
36.1 C (97.0 F)
2012
35.6 C (96.1 F)
2013
n/a
2014
n/a
2016
28.9 C (84.0 F)
2017
n/a
2018
36.7 C (98.1 F)
2019
35.0 C (95.0 F)
2020
36.7 C (98.1 F)
2021
38.9 C (102.0 F)
2022
37.2 C (99.0 F)
2023
37.2 C (99.0 F)
2026
n/a
Coldest night (TNn)
The coldest night of the year at Marysvale, 1913 to 2026. The record is -37.2 C (-35.0 F) in 1990, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Marysvale by year
Year
Coldest night (TNn)
1913
-27.2 C (-17.0 F)
1914
-21.7 C (-7.1 F)
1915
-22.2 C (-8.0 F)
1916
-3.3 C (26.1 F)
1917
-27.2 C (-17.0 F)
1918
-20.6 C (-5.1 F)
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1954
-20.6 C (-5.1 F)
1955
-22.2 C (-8.0 F)
1956
-25.6 C (-14.1 F)
1957
-24.4 C (-11.9 F)
1958
-21.1 C (-6.0 F)
1959
-23.3 C (-9.9 F)
1960
-21.1 C (-6.0 F)
1961
-25.0 C (-13.0 F)
1962
-26.7 C (-16.1 F)
1963
-29.4 C (-20.9 F)
1964
-25.6 C (-14.1 F)
1965
-21.1 C (-6.0 F)
1966
-21.1 C (-6.0 F)
1971
-20.6 C (-5.1 F)
1972
-28.3 C (-18.9 F)
1973
-22.2 C (-8.0 F)
1974
-25.0 C (-13.0 F)
1975
-22.2 C (-8.0 F)
1976
-23.9 C (-11.0 F)
1977
-21.7 C (-7.1 F)
1978
-22.8 C (-9.0 F)
1979
-27.8 C (-18.0 F)
1980
-16.1 C (3.0 F)
1981
-17.8 C (0.0 F)
1982
-27.8 C (-18.0 F)
1983
-19.4 C (-2.9 F)
1984
-22.8 C (-9.0 F)
1985
-23.3 C (-9.9 F)
1986
-17.8 C (0.0 F)
1987
-25.0 C (-13.0 F)
1988
-26.1 C (-15.0 F)
1989
-33.3 C (-27.9 F)
1990
-37.2 C (-35.0 F)
1991
-25.6 C (-14.1 F)
1992
-23.3 C (-9.9 F)
1993
-21.1 C (-6.0 F)
1994
-22.2 C (-8.0 F)
1995
-18.3 C (-0.9 F)
1996
-23.3 C (-9.9 F)
1997
-25.0 C (-13.0 F)
1998
-31.7 C (-25.1 F)
1999
-16.7 C (1.9 F)
2000
-17.2 C (1.0 F)
2001
-18.9 C (-2.0 F)
2002
-19.4 C (-2.9 F)
2003
-18.3 C (-0.9 F)
2004
-32.8 C (-27.0 F)
2005
-16.7 C (1.9 F)
2006
-25.6 C (-14.1 F)
2007
-27.8 C (-18.0 F)
2008
-23.3 C (-9.9 F)
2009
-26.7 C (-16.1 F)
2010
-19.4 C (-2.9 F)
2011
-19.4 C (-2.9 F)
2012
-18.3 C (-0.9 F)
2013
n/a
2014
n/a
2016
-2.2 C (28.0 F)
2017
n/a
2018
-18.9 C (-2.0 F)
2019
-20.0 C (-4.0 F)
2020
-21.7 C (-7.1 F)
2021
-17.2 C (1.0 F)
2022
-27.2 C (-17.0 F)
2023
-19.4 C (-2.9 F)
2026
n/a
Wettest day (Rx1day)
The wettest day of the year at Marysvale, 1913 to 2026. The record is 83.8 mm (3.3 in) in 1913, marked on the chart; the median year is 17.1 mm (0.7 in).
Wettest day (Rx1day) at Marysvale by year
Year
Wettest day (Rx1day)
1913
83.8 mm (3.3 in)
1914
51.3 mm (2.0 in)
1915
17.5 mm (0.7 in)
1916
3.6 mm (0.14 in)
1917
10.2 mm (0.4 in)
1918
7.6 mm (0.30 in)
1948
8.4 mm (0.33 in)
1949
17.3 mm (0.7 in)
1950
18.5 mm (0.7 in)
1951
7.4 mm (0.29 in)
1954
13.5 mm (0.5 in)
1955
15.7 mm (0.6 in)
1956
12.2 mm (0.5 in)
1957
20.3 mm (0.8 in)
1958
13.7 mm (0.5 in)
1959
21.1 mm (0.8 in)
1960
19.1 mm (0.8 in)
1961
16.5 mm (0.6 in)
1962
13.5 mm (0.5 in)
1963
19.1 mm (0.8 in)
1964
11.7 mm (0.5 in)
1965
22.1 mm (0.9 in)
1966
33.0 mm (1.3 in)
1971
15.5 mm (0.6 in)
1972
17.5 mm (0.7 in)
1973
14.0 mm (0.6 in)
1974
18.0 mm (0.7 in)
1975
15.5 mm (0.6 in)
1976
10.4 mm (0.4 in)
1977
18.3 mm (0.7 in)
1978
19.6 mm (0.8 in)
1979
38.1 mm (1.5 in)
1980
24.9 mm (1.0 in)
1981
15.5 mm (0.6 in)
1982
28.7 mm (1.1 in)
1983
16.5 mm (0.6 in)
1984
17.3 mm (0.7 in)
1985
28.4 mm (1.1 in)
1986
11.4 mm (0.4 in)
1987
19.8 mm (0.8 in)
1988
21.6 mm (0.9 in)
1989
20.3 mm (0.8 in)
1990
23.6 mm (0.9 in)
1991
15.2 mm (0.6 in)
1992
16.0 mm (0.6 in)
1993
21.1 mm (0.8 in)
1994
11.9 mm (0.5 in)
1995
23.4 mm (0.9 in)
1996
14.7 mm (0.6 in)
1997
14.7 mm (0.6 in)
1998
16.5 mm (0.6 in)
1999
13.2 mm (0.5 in)
2000
16.0 mm (0.6 in)
2001
41.1 mm (1.6 in)
2002
16.8 mm (0.7 in)
2003
10.4 mm (0.4 in)
2004
17.8 mm (0.7 in)
2005
38.1 mm (1.5 in)
2006
18.5 mm (0.7 in)
2007
16.5 mm (0.6 in)
2008
10.2 mm (0.4 in)
2009
13.7 mm (0.5 in)
2010
50.8 mm (2.0 in)
2011
45.7 mm (1.8 in)
2012
50.8 mm (2.0 in)
2013
15.7 mm (0.6 in)
2014
6.4 mm (0.25 in)
2016
4.6 mm (0.18 in)
2017
19.8 mm (0.8 in)
2018
56.6 mm (2.2 in)
2019
23.6 mm (0.9 in)
2020
12.7 mm (0.5 in)
2021
21.6 mm (0.9 in)
2022
14.7 mm (0.6 in)
2023
40.6 mm (1.6 in)
2026
8.8 mm (0.35 in)
Wettest five days (Rx5day)
The wettest five days of the year at Marysvale, 1913 to 2026. The record is 57.1 mm (2.2 in) in 2018, marked on the chart; the median year is 25.6 mm (1.0 in).
Wettest five days (Rx5day) at Marysvale by year
Year
Wettest five days (Rx5day)
1913
n/a
1914
52.3 mm (2.1 in)
1915
22.5 mm (0.9 in)
1916
4.9 mm (0.19 in)
1917
6.3 mm (0.25 in)
1918
24.8 mm (1.0 in)
1948
13.7 mm (0.5 in)
1949
23.9 mm (0.9 in)
1950
25.6 mm (1.0 in)
1951
10.9 mm (0.4 in)
1954
16.8 mm (0.7 in)
1955
18.5 mm (0.7 in)
1956
24.2 mm (1.0 in)
1957
37.0 mm (1.5 in)
1958
22.1 mm (0.9 in)
1959
37.1 mm (1.5 in)
1960
25.4 mm (1.0 in)
1961
22.7 mm (0.9 in)
1962
18.8 mm (0.7 in)
1963
31.0 mm (1.2 in)
1964
25.9 mm (1.0 in)
1965
40.1 mm (1.6 in)
1966
56.4 mm (2.2 in)
1971
33.0 mm (1.3 in)
1972
27.0 mm (1.1 in)
1973
15.2 mm (0.6 in)
1974
22.6 mm (0.9 in)
1975
32.3 mm (1.3 in)
1976
11.9 mm (0.5 in)
1977
24.9 mm (1.0 in)
1978
31.6 mm (1.2 in)
1979
38.6 mm (1.5 in)
1980
55.4 mm (2.2 in)
1981
21.4 mm (0.8 in)
1982
31.2 mm (1.2 in)
1983
21.3 mm (0.8 in)
1984
26.4 mm (1.0 in)
1985
39.4 mm (1.6 in)
1986
24.6 mm (1.0 in)
1987
30.7 mm (1.2 in)
1988
36.6 mm (1.4 in)
1989
22.8 mm (0.9 in)
1990
23.6 mm (0.9 in)
1991
20.4 mm (0.8 in)
1992
33.3 mm (1.3 in)
1993
23.4 mm (0.9 in)
1994
28.5 mm (1.1 in)
1995
30.1 mm (1.2 in)
1996
31.9 mm (1.3 in)
1997
24.8 mm (1.0 in)
1998
27.6 mm (1.1 in)
1999
20.6 mm (0.8 in)
2000
43.8 mm (1.7 in)
2001
42.6 mm (1.7 in)
2002
35.4 mm (1.4 in)
2003
18.6 mm (0.7 in)
2004
35.3 mm (1.4 in)
2005
38.1 mm (1.5 in)
2006
36.2 mm (1.4 in)
2007
21.5 mm (0.8 in)
2008
18.2 mm (0.7 in)
2009
15.0 mm (0.6 in)
2010
50.8 mm (2.0 in)
2011
45.7 mm (1.8 in)
2012
21.3 mm (0.8 in)
2013
28.4 mm (1.1 in)
2014
11.0 mm (0.4 in)
2016
7.4 mm (0.29 in)
2017
24.8 mm (1.0 in)
2018
57.1 mm (2.2 in)
2019
38.3 mm (1.5 in)
2020
25.6 mm (1.0 in)
2021
37.6 mm (1.5 in)
2022
25.4 mm (1.0 in)
2023
40.6 mm (1.6 in)
2026
13.2 mm (0.5 in)
Longest dry spell (CDD)
The longest dry spell of the year at Marysvale, 1913 to 2026. The record is 109 days in 1972, marked on the chart; the median year is 37 days.
Longest dry spell (CDD) at Marysvale by year
Year
Longest dry spell (CDD)
1913
1 day
1914
15 days
1915
38 days
1916
12 days
1917
21 days
1918
25 days
1948
35 days
1949
29 days
1950
80 days
1951
32 days
1954
35 days
1955
43 days
1956
31 days
1957
33 days
1958
44 days
1959
35 days
1960
51 days
1961
34 days
1962
30 days
1963
30 days
1964
30 days
1965
31 days
1966
39 days
1971
23 days
1972
109 days
1973
39 days
1974
60 days
1975
31 days
1976
46 days
1977
52 days
1978
52 days
1979
52 days
1980
37 days
1981
30 days
1982
37 days
1983
23 days
1984
22 days
1985
42 days
1986
26 days
1987
42 days
1988
36 days
1989
38 days
1990
33 days
1991
39 days
1992
37 days
1993
38 days
1994
59 days
1995
32 days
1996
41 days
1997
36 days
1998
40 days
1999
44 days
2000
31 days
2001
37 days
2002
85 days
2003
78 days
2004
30 days
2005
29 days
2006
40 days
2007
67 days
2008
43 days
2009
51 days
2010
31 days
2011
17 days
2012
26 days
2013
43 days
2014
18 days
2016
23 days
2017
39 days
2018
40 days
2019
51 days
2020
44 days
2021
35 days
2022
50 days
2023
31 days
2026
39 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
51 years with a frost
Across 51 years with a frost, the median last spring frost at Marysvale falls on 1 June and the median first autumn frost on 18 September, which leaves a median of 110 days between them.
Fitted over all years, the growing season changes by +0.6 days per decade at this station.
Frost dates and growing season at Marysvale
Measure
Median, all years
Earliest period
Recent period (1984 to 2022)
Recent against earliest
Fitted trend
Last spring frost
1 June
n/a
28 May
n/a
-0.3 days per decade
First autumn frost
18 September
n/a
18 September
n/a
+0.3 days per decade
Growing days
110 days
n/a
113 days
n/a
+0.6 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
53 years, 1950 to 2022
A day with at least 17.2 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 45.4 mm (1.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Marysvale: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
17.2 mm (0.7 in)
5 years
22.8 mm (0.9 in)
10 years
27.2 mm (1.1 in)
25 years
33.6 mm (1.3 in)
50 years
39.2 mm (1.5 in)
100 years
45.4 mm (1.8 in)
Longer than the 53 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, 53 years of values from 1950 to 2022.
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: 41.1 mm (1.6 in) in 2001; 38.1 mm (1.5 in) in 1979; 38.1 mm (1.5 in) in 2005.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Marysvale standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Marysvale 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.