Record envelope, standing records and threshold days for Mexican Hat (USC00425582), Utah, United States, with 80 years of record.
Key Facts for Mexican Hat
Mexican Hat (USC00425582) is a weather station in Utah, United States at 37.15 latitude and -109.87 longitude, 1,252 m (4,109 ft) above sea level.
The station reports from 1940 to 2019, 80 years of record.
1,464 records set at Mexican Hat still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mexican Hat set a daily record low maximum temperature of 2.8 C (37.0 F) on 18 February 2019.
About the Station
Location: Utah, United States, 37.15 latitude, -109.87 longitude.
Elevation: 1,252 m (4,109 ft).
Period of record: 1940 to 2019, 80 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 Mexican Hat. 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 Mexican Hat, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
20.6 C (69.1 F)
-27.2 C (-17.0 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-18.3 C (-0.9 F)
n/a
n/a
Mar
30.0 C (86.0 F)
-13.9 C (7.0 F)
n/a
n/a
Apr
33.9 C (93.0 F)
-12.2 C (10.0 F)
n/a
n/a
May
40.0 C (104.0 F)
-2.8 C (27.0 F)
n/a
n/a
Jun
42.8 C (109.0 F)
3.3 C (37.9 F)
n/a
n/a
Jul
43.3 C (109.9 F)
9.4 C (48.9 F)
n/a
n/a
Aug
41.7 C (107.1 F)
2.8 C (37.0 F)
n/a
n/a
Sep
40.0 C (104.0 F)
-1.7 C (28.9 F)
n/a
n/a
Oct
35.6 C (96.1 F)
-7.2 C (19.0 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-13.3 C (8.1 F)
n/a
n/a
Dec
20.6 C (69.1 F)
-26.7 C (-16.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Mexican Hat still stand. 1971 holds the most, with 39.
Standing records at Mexican Hat by the year they were set
Year set
Standing records
1940
3
1946
17
1947
26
1948
36
1949
31
1950
34
1951
33
1952
19
1953
20
1954
19
1955
33
1956
32
1957
14
1958
16
1959
16
1960
23
1961
13
1962
27
1963
33
1964
12
1965
14
1966
17
1967
13
1968
13
1969
13
1970
19
1971
39
1972
10
1973
22
1974
17
1975
25
1976
17
1977
25
1978
30
1979
18
1980
23
1981
20
1982
17
1983
12
1984
18
1985
16
1986
26
1987
6
1988
24
1989
34
1990
36
1991
19
1992
26
1993
7
1994
8
1995
24
1996
27
1997
14
1998
10
1999
20
2000
20
2001
16
2002
27
2003
21
2004
16
2005
20
2006
20
2007
23
2008
6
2009
13
2010
16
2011
19
2012
14
2013
18
2014
14
2015
16
2016
16
2017
24
2018
7
2019
2
All-Time Record Progression
3 new records
3 all-time records were set at Mexican Hat between 25 December 1990 and 11 August 2005. Each dot is a new record.
When Mexican Hat set new all-time records
Date
Kind
Detail
1990-12-25
Record low maximum temperature
Record low maximum temperature -12.2 C (10.0 F)
1992-12-13
Record snow depth
Record snow depth 22.9 cm (9.0 in)
2005-08-11
Record daily precipitation
Record daily precipitation 53.3 mm (2.1 in)
Wettest Day of Each Month
Aug: 53.3 mm (2.1 in)
The wettest day on record for each calendar month at Mexican Hat. The most was 53.3 mm (2.1 in) on 11 August 2005.
Record daily precipitation for each month at Mexican Hat
Month
Record daily precipitation (mm)
Date
Jan
20.8 mm (0.8 in)
6 January 2016
Feb
36.8 mm (1.4 in)
22 February 2015
Mar
22.1 mm (0.9 in)
6 March 1995
Apr
18.0 mm (0.7 in)
16 April 1988
May
20.8 mm (0.8 in)
17 May 1995
Jun
27.9 mm (1.1 in)
27 June 2001
Jul
32.0 mm (1.3 in)
6 July 1952
Aug
53.3 mm (2.1 in)
11 August 2005
Sep
32.0 mm (1.3 in)
10 September 2003
Oct
34.0 mm (1.3 in)
5 October 2015
Nov
21.8 mm (0.9 in)
23 November 1965
Dec
22.4 mm (0.9 in)
22 December 2009
Period of Record Coverage
1940 to 2019
Complete yearUnder 90 percent of days
75 years of record at Mexican Hat, 1940 to 2019. 9 years have data for under 90 percent of days and are left out of rankings: 1940, 1948, 1950, 1951, 1962, 1964, 1969, 2018 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 59 complete years at Mexican Hat, 1946 to 2017. Blue stripes are years cooler than the station's own mean of 13.8 C (56.9 F); red stripes are warmer. The coolest year was 1973, at 12.3 C (54.1 F), and the warmest was 2003, at 15.4 C (59.7 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Mexican Hat as warming stripes, 1946 to 2017
Year
Annual mean temperature
Difference from the station mean
1946
14.4 C
+0.56 C
1948
13.8 C
-0.05 C
1949
13.7 C
-0.15 C
1953
13.8 C
-0.02 C
1954
15.0 C
+1.17 C
1955
13.5 C
-0.36 C
1956
13.9 C
+0.06 C
1957
13.8 C
+0.00 C
1958
14.6 C
+0.75 C
1959
14.0 C
+0.18 C
1960
13.9 C
+0.06 C
1961
13.1 C
-0.72 C
1963
13.4 C
-0.43 C
1965
13.2 C
-0.63 C
1966
13.6 C
-0.28 C
1967
14.0 C
+0.16 C
1968
12.9 C
-0.92 C
1970
13.4 C
-0.46 C
1971
13.2 C
-0.59 C
1973
12.3 C
-1.57 C
1974
13.2 C
-0.61 C
1975
12.3 C
-1.51 C
1976
13.0 C
-0.83 C
1977
13.1 C
-0.74 C
1978
13.4 C
-0.45 C
1979
12.6 C
-1.26 C
1980
13.4 C
-0.44 C
1981
14.5 C
+0.68 C
1982
13.2 C
-0.65 C
1983
13.9 C
+0.11 C
1984
13.4 C
-0.48 C
1985
14.0 C
+0.18 C
1986
14.4 C
+0.54 C
1987
13.2 C
-0.61 C
1988
12.9 C
-0.91 C
1989
13.1 C
-0.72 C
1990
13.8 C
+0.01 C
1991
13.1 C
-0.74 C
1992
13.5 C
-0.33 C
1993
13.6 C
-0.21 C
1994
14.7 C
+0.85 C
1995
14.2 C
+0.40 C
1996
14.4 C
+0.56 C
1997
13.6 C
-0.25 C
1998
14.0 C
+0.19 C
1999
14.2 C
+0.32 C
2000
14.9 C
+1.10 C
2003
15.4 C
+1.57 C
2006
14.5 C
+0.67 C
2007
14.7 C
+0.89 C
2008
13.9 C
+0.11 C
2009
14.1 C
+0.22 C
2010
13.5 C
-0.32 C
2012
15.3 C
+1.48 C
2013
14.1 C
+0.26 C
2014
15.0 C
+1.15 C
2015
15.0 C
+1.14 C
2016
14.7 C
+0.86 C
2017
14.8 C
+0.94 C
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1946 to 2017. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 59 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Mexican Hat
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (0.1 to 0.2) per decade
0.3 F (0.1 to 0.4) per decade
1946 to 2017
59
Rise
Mean daily maximum
0.09 C (-0.01 to 0.20) per decade
0.17 F (-0.03 to 0.36) per decade
1946 to 2017
59
Not clearly different from zero
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.1 to 0.5) per decade
1946 to 2017
59
Rise
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
1940 to 2019
Yearly extremes at Mexican Hat: 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)
1971
40.6 C (105.1 F)
75
Coldest night (TNn)
-27.2 C (-17.0 F)
1963
-14.4 C (6.1 F)
75
Wettest day (Rx1day)
53.3 mm (2.1 in)
2005
18.0 mm (0.7 in)
75
Wettest five days (Rx5day)
79.8 mm (3.1 in)
1972
25.7 mm (1.0 in)
74
Longest dry spell (CDD)
167 days
1972
58 days
75
Hottest day (TXx)
The hottest day of the year at Mexican Hat, 1940 to 2019. The record is 43.3 C (109.9 F) in 1971, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Mexican Hat by year
Year
Hottest day (TXx)
1940
41.7 C (107.1 F)
1946
39.4 C (102.9 F)
1947
41.7 C (107.1 F)
1948
39.4 C (102.9 F)
1949
40.6 C (105.1 F)
1950
40.6 C (105.1 F)
1951
41.1 C (106.0 F)
1952
38.9 C (102.0 F)
1953
41.7 C (107.1 F)
1954
42.8 C (109.0 F)
1955
40.0 C (104.0 F)
1956
40.0 C (104.0 F)
1957
40.6 C (105.1 F)
1958
41.7 C (107.1 F)
1959
40.6 C (105.1 F)
1960
41.7 C (107.1 F)
1961
42.2 C (108.0 F)
1962
39.4 C (102.9 F)
1963
40.6 C (105.1 F)
1964
40.6 C (105.1 F)
1965
38.9 C (102.0 F)
1966
41.1 C (106.0 F)
1967
40.6 C (105.1 F)
1968
42.8 C (109.0 F)
1969
41.7 C (107.1 F)
1970
41.1 C (106.0 F)
1971
43.3 C (109.9 F)
1972
41.7 C (107.1 F)
1973
41.7 C (107.1 F)
1974
41.7 C (107.1 F)
1975
40.0 C (104.0 F)
1976
40.6 C (105.1 F)
1977
40.0 C (104.0 F)
1978
40.6 C (105.1 F)
1979
40.6 C (105.1 F)
1980
40.6 C (105.1 F)
1981
41.1 C (106.0 F)
1982
40.0 C (104.0 F)
1983
40.0 C (104.0 F)
1984
40.0 C (104.0 F)
1985
41.7 C (107.1 F)
1986
39.4 C (102.9 F)
1987
40.0 C (104.0 F)
1988
40.6 C (105.1 F)
1989
42.8 C (109.0 F)
1990
42.2 C (108.0 F)
1991
40.0 C (104.0 F)
1992
39.4 C (102.9 F)
1993
40.6 C (105.1 F)
1994
41.7 C (107.1 F)
1995
42.2 C (108.0 F)
1996
40.6 C (105.1 F)
1997
40.6 C (105.1 F)
1998
41.7 C (107.1 F)
1999
40.6 C (105.1 F)
2000
41.1 C (106.0 F)
2001
40.6 C (105.1 F)
2002
42.2 C (108.0 F)
2003
42.8 C (109.0 F)
2004
40.6 C (105.1 F)
2005
42.8 C (109.0 F)
2006
41.7 C (107.1 F)
2007
41.7 C (107.1 F)
2008
40.6 C (105.1 F)
2009
41.1 C (106.0 F)
2010
41.7 C (107.1 F)
2011
40.6 C (105.1 F)
2012
41.1 C (106.0 F)
2013
42.8 C (109.0 F)
2014
40.6 C (105.1 F)
2015
40.6 C (105.1 F)
2016
42.8 C (109.0 F)
2017
42.8 C (109.0 F)
2018
35.6 C (96.1 F)
2019
16.1 C (61.0 F)
Coldest night (TNn)
The coldest night of the year at Mexican Hat, 1940 to 2019. The record is -27.2 C (-17.0 F) in 1963, marked on the chart; the median year is -14.4 C (6.1 F).
Coldest night (TNn) at Mexican Hat by year
Year
Coldest night (TNn)
1940
15.0 C (59.0 F)
1946
-15.6 C (3.9 F)
1947
-17.2 C (1.0 F)
1948
-17.8 C (0.0 F)
1949
-17.8 C (0.0 F)
1950
-16.7 C (1.9 F)
1951
-16.1 C (3.0 F)
1952
-20.0 C (-4.0 F)
1953
-13.3 C (8.1 F)
1954
-13.9 C (7.0 F)
1955
-14.4 C (6.1 F)
1956
-12.8 C (9.0 F)
1957
-9.4 C (15.1 F)
1958
-12.2 C (10.0 F)
1959
-17.2 C (1.0 F)
1960
-12.8 C (9.0 F)
1961
-23.3 C (-9.9 F)
1962
-21.7 C (-7.1 F)
1963
-27.2 C (-17.0 F)
1964
-18.9 C (-2.0 F)
1965
-10.6 C (12.9 F)
1966
-15.6 C (3.9 F)
1967
-18.3 C (-0.9 F)
1968
-20.6 C (-5.1 F)
1969
-14.4 C (6.1 F)
1970
-14.4 C (6.1 F)
1971
-20.0 C (-4.0 F)
1972
-13.9 C (7.0 F)
1973
-15.6 C (3.9 F)
1974
-18.3 C (-0.9 F)
1975
-14.4 C (6.1 F)
1976
-14.4 C (6.1 F)
1977
-21.7 C (-7.1 F)
1978
-23.3 C (-9.9 F)
1979
-16.1 C (3.0 F)
1980
-8.9 C (16.0 F)
1981
-11.7 C (10.9 F)
1982
-16.7 C (1.9 F)
1983
-11.7 C (10.9 F)
1984
-12.8 C (9.0 F)
1985
-13.9 C (7.0 F)
1986
-9.4 C (15.1 F)
1987
-16.1 C (3.0 F)
1988
-15.6 C (3.9 F)
1989
-18.3 C (-0.9 F)
1990
-26.7 C (-16.1 F)
1991
-23.9 C (-11.0 F)
1992
-21.7 C (-7.1 F)
1993
-10.6 C (12.9 F)
1994
-12.2 C (10.0 F)
1995
-13.3 C (8.1 F)
1996
-14.4 C (6.1 F)
1997
-15.0 C (5.0 F)
1998
-11.1 C (12.0 F)
1999
-12.8 C (9.0 F)
2000
-12.2 C (10.0 F)
2001
-14.4 C (6.1 F)
2002
-13.9 C (7.0 F)
2003
-11.1 C (12.0 F)
2004
-10.0 C (14.0 F)
2005
-14.4 C (6.1 F)
2006
-11.1 C (12.0 F)
2007
-12.8 C (9.0 F)
2008
-11.7 C (10.9 F)
2009
-13.9 C (7.0 F)
2010
-15.0 C (5.0 F)
2011
-16.7 C (1.9 F)
2012
-10.6 C (12.9 F)
2013
-16.1 C (3.0 F)
2014
-10.0 C (14.0 F)
2015
-11.7 C (10.9 F)
2016
-10.0 C (14.0 F)
2017
-10.6 C (12.9 F)
2018
-15.6 C (3.9 F)
2019
-10.0 C (14.0 F)
Wettest day (Rx1day)
The wettest day of the year at Mexican Hat, 1940 to 2019. The record is 53.3 mm (2.1 in) in 2005, marked on the chart; the median year is 18.0 mm (0.7 in).
Wettest day (Rx1day) at Mexican Hat by year
Year
Wettest day (Rx1day)
1940
17.8 mm (0.7 in)
1946
12.7 mm (0.5 in)
1947
34.0 mm (1.3 in)
1948
18.5 mm (0.7 in)
1949
23.9 mm (0.9 in)
1950
8.1 mm (0.32 in)
1951
15.2 mm (0.6 in)
1952
32.0 mm (1.3 in)
1953
11.2 mm (0.4 in)
1954
9.4 mm (0.37 in)
1955
8.1 mm (0.32 in)
1956
13.0 mm (0.5 in)
1957
25.9 mm (1.0 in)
1958
15.0 mm (0.6 in)
1959
12.7 mm (0.5 in)
1960
15.0 mm (0.6 in)
1961
18.0 mm (0.7 in)
1962
23.6 mm (0.9 in)
1963
14.7 mm (0.6 in)
1964
12.7 mm (0.5 in)
1965
23.9 mm (0.9 in)
1966
23.4 mm (0.9 in)
1967
28.7 mm (1.1 in)
1968
17.0 mm (0.7 in)
1969
20.8 mm (0.8 in)
1970
21.6 mm (0.9 in)
1971
22.9 mm (0.9 in)
1972
32.0 mm (1.3 in)
1973
14.5 mm (0.6 in)
1974
10.2 mm (0.4 in)
1975
11.4 mm (0.4 in)
1976
21.6 mm (0.9 in)
1977
12.4 mm (0.5 in)
1978
20.3 mm (0.8 in)
1979
22.4 mm (0.9 in)
1980
16.8 mm (0.7 in)
1981
15.7 mm (0.6 in)
1982
16.5 mm (0.6 in)
1983
16.3 mm (0.6 in)
1984
20.1 mm (0.8 in)
1985
18.8 mm (0.7 in)
1986
15.5 mm (0.6 in)
1987
17.8 mm (0.7 in)
1988
18.0 mm (0.7 in)
1989
19.6 mm (0.8 in)
1990
21.6 mm (0.9 in)
1991
15.0 mm (0.6 in)
1992
16.0 mm (0.6 in)
1993
16.8 mm (0.7 in)
1994
13.7 mm (0.5 in)
1995
22.1 mm (0.9 in)
1996
12.4 mm (0.5 in)
1997
14.7 mm (0.6 in)
1998
11.4 mm (0.4 in)
1999
23.4 mm (0.9 in)
2000
19.1 mm (0.8 in)
2001
27.9 mm (1.1 in)
2002
27.9 mm (1.1 in)
2003
32.0 mm (1.3 in)
2004
19.6 mm (0.8 in)
2005
53.3 mm (2.1 in)
2006
18.0 mm (0.7 in)
2007
20.8 mm (0.8 in)
2008
14.0 mm (0.6 in)
2009
22.4 mm (0.9 in)
2010
19.3 mm (0.8 in)
2011
14.2 mm (0.6 in)
2012
8.1 mm (0.32 in)
2013
23.9 mm (0.9 in)
2014
17.3 mm (0.7 in)
2015
36.8 mm (1.4 in)
2016
20.8 mm (0.8 in)
2017
12.7 mm (0.5 in)
2018
9.1 mm (0.36 in)
2019
22.9 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Mexican Hat, 1940 to 2019. The record is 79.8 mm (3.1 in) in 1972, marked on the chart; the median year is 25.7 mm (1.0 in).
Wettest five days (Rx5day) at Mexican Hat by year
Year
Wettest five days (Rx5day)
1940
n/a
1946
12.7 mm (0.5 in)
1947
44.2 mm (1.7 in)
1948
30.1 mm (1.2 in)
1949
25.2 mm (1.0 in)
1950
10.6 mm (0.4 in)
1951
15.2 mm (0.6 in)
1952
37.6 mm (1.5 in)
1953
15.5 mm (0.6 in)
1954
14.3 mm (0.6 in)
1955
11.9 mm (0.5 in)
1956
18.6 mm (0.7 in)
1957
28.4 mm (1.1 in)
1958
20.4 mm (0.8 in)
1959
27.4 mm (1.1 in)
1960
33.7 mm (1.3 in)
1961
34.1 mm (1.3 in)
1962
29.0 mm (1.1 in)
1963
17.6 mm (0.7 in)
1964
16.5 mm (0.6 in)
1965
27.7 mm (1.1 in)
1966
50.1 mm (2.0 in)
1967
33.6 mm (1.3 in)
1968
26.2 mm (1.0 in)
1969
23.3 mm (0.9 in)
1970
25.7 mm (1.0 in)
1971
31.5 mm (1.2 in)
1972
79.8 mm (3.1 in)
1973
18.8 mm (0.7 in)
1974
25.1 mm (1.0 in)
1975
15.5 mm (0.6 in)
1976
31.8 mm (1.3 in)
1977
20.0 mm (0.8 in)
1978
35.6 mm (1.4 in)
1979
22.4 mm (0.9 in)
1980
25.2 mm (1.0 in)
1981
26.9 mm (1.1 in)
1982
24.1 mm (0.9 in)
1983
38.1 mm (1.5 in)
1984
25.7 mm (1.0 in)
1985
25.9 mm (1.0 in)
1986
22.8 mm (0.9 in)
1987
38.9 mm (1.5 in)
1988
25.1 mm (1.0 in)
1989
28.5 mm (1.1 in)
1990
25.7 mm (1.0 in)
1991
19.3 mm (0.8 in)
1992
33.3 mm (1.3 in)
1993
33.3 mm (1.3 in)
1994
17.6 mm (0.7 in)
1995
34.3 mm (1.4 in)
1996
16.8 mm (0.7 in)
1997
25.6 mm (1.0 in)
1998
22.8 mm (0.9 in)
1999
23.4 mm (0.9 in)
2000
35.1 mm (1.4 in)
2001
29.2 mm (1.1 in)
2002
64.3 mm (2.5 in)
2003
32.0 mm (1.3 in)
2004
21.1 mm (0.8 in)
2005
64.7 mm (2.5 in)
2006
35.6 mm (1.4 in)
2007
28.2 mm (1.1 in)
2008
23.1 mm (0.9 in)
2009
39.8 mm (1.6 in)
2010
38.7 mm (1.5 in)
2011
17.0 mm (0.7 in)
2012
15.0 mm (0.6 in)
2013
40.4 mm (1.6 in)
2014
18.0 mm (0.7 in)
2015
37.3 mm (1.5 in)
2016
65.7 mm (2.6 in)
2017
19.8 mm (0.8 in)
2018
10.4 mm (0.4 in)
2019
25.4 mm (1.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Mexican Hat, 1940 to 2019. The record is 167 days in 1972, marked on the chart; the median year is 58 days.
Longest dry spell (CDD) at Mexican Hat by year
Year
Longest dry spell (CDD)
1940
2 days
1946
51 days
1947
88 days
1948
61 days
1949
35 days
1950
103 days
1951
67 days
1952
54 days
1953
72 days
1954
34 days
1955
79 days
1956
67 days
1957
41 days
1958
36 days
1959
74 days
1960
31 days
1961
58 days
1962
63 days
1963
71 days
1964
56 days
1965
32 days
1966
58 days
1967
58 days
1968
73 days
1969
47 days
1970
38 days
1971
123 days
1972
167 days
1973
50 days
1974
102 days
1975
48 days
1976
60 days
1977
131 days
1978
131 days
1979
64 days
1980
52 days
1981
32 days
1982
48 days
1983
38 days
1984
55 days
1985
42 days
1986
46 days
1987
43 days
1988
47 days
1989
70 days
1990
39 days
1991
89 days
1992
38 days
1993
90 days
1994
75 days
1995
43 days
1996
41 days
1997
64 days
1998
61 days
1999
76 days
2000
52 days
2001
68 days
2002
100 days
2003
71 days
2004
75 days
2005
50 days
2006
41 days
2007
56 days
2008
85 days
2009
59 days
2010
41 days
2011
49 days
2012
82 days
2013
65 days
2014
56 days
2015
45 days
2016
63 days
2017
95 days
2018
43 days
2019
17 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
59 years with a frost
Across 59 years with a frost, the median last spring frost at Mexican Hat falls on 19 April and the median first autumn frost on 22 October, which leaves a median of 188 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 Mexican Hat
Measure
Median, all years
Earliest period
Recent period (1983 to 2017)
Recent against earliest
Fitted trend
Last spring frost
19 April
n/a
18 April
n/a
-0.5 days per decade
First autumn frost
22 October
n/a
26 October
n/a
+0.1 days per decade
Growing days
188 days
n/a
191 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
69 years, 1946 to 2017
A day with at least 17.6 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 44.4 mm (1.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Mexican Hat: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
17.6 mm (0.7 in)
5 years
24.1 mm (0.9 in)
10 years
28.7 mm (1.1 in)
25 years
34.8 mm (1.4 in)
50 years
39.5 mm (1.6 in)
100 years
44.4 mm (1.7 in)
Longer than the 69 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, 69 years of values from 1946 to 2017.
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: 53.3 mm (2.1 in) in 2005; 36.8 mm (1.4 in) in 2015; 34.0 mm (1.3 in) in 1947.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
1998 to 2017 against 1961 to 1990
Over 1998 to 2017, Mexican Hat had a mean temperature of 14.5 C (58.2 F) and 167.2 mm (6.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Page AP (United States, 143 km away), Cameron 1 NNE (United States, 196 km away) and Wupatki Nm (United States, 226 km away).
Climate twins of Mexican Hat: stations whose 1961 to 1990 climate is closest to its 1998 to 2017 climate
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Data for Mexican Hat standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mexican Hat 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.