Record envelope, standing records and threshold days for Hesperia 4 WNW (USC00203769), Michigan, United States, with 121 years of record.
Key Facts for Hesperia 4 WNW
Hesperia 4 WNW (USC00203769) is a weather station in Michigan, United States at 43.59 latitude and -86.11 longitude, 238 m (780 ft) above sea level.
The station reports from 1894 to 2014, 121 years of record.
1,464 records set at Hesperia 4 WNW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hesperia 4 WNW set a daily record low maximum temperature of 17.2 C (63.0 F) on 16 July 2014.
About the Station
Location: Michigan, United States, 43.59 latitude, -86.11 longitude.
Elevation: 238 m (780 ft).
Period of record: 1894 to 2014, 121 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 Hesperia 4 WNW. 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 Hesperia 4 WNW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
15.0 C (59.0 F)
-37.2 C (-35.0 F)
n/a
n/a
Feb
18.9 C (66.0 F)
-35.0 C (-31.0 F)
n/a
n/a
Mar
30.0 C (86.0 F)
-26.1 C (-15.0 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-22.8 C (-9.0 F)
n/a
n/a
May
34.4 C (93.9 F)
-7.8 C (18.0 F)
n/a
n/a
Jun
37.2 C (99.0 F)
-1.7 C (28.9 F)
n/a
n/a
Jul
38.3 C (100.9 F)
0.6 C (33.1 F)
n/a
n/a
Aug
37.8 C (100.0 F)
-1.1 C (30.0 F)
n/a
n/a
Sep
34.4 C (93.9 F)
-5.6 C (21.9 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-11.1 C (12.0 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Dec
17.8 C (64.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Hesperia 4 WNW still stand. 1895 holds the most, with 71.
Standing records at Hesperia 4 WNW by the year they were set
Year set
Standing records
1894
24
1895
71
1896
51
1897
15
1950
20
1951
32
1952
19
1953
18
1954
15
1955
34
1956
10
1957
13
1958
17
1959
25
1960
14
1961
18
1962
22
1963
33
1964
33
1965
36
1966
23
1967
23
1968
30
1969
15
1970
15
1971
17
1972
19
1973
22
1974
18
1975
13
1976
35
1977
38
1978
19
1979
28
1980
15
1981
18
1982
31
1983
28
1984
23
1985
20
1986
23
1987
9
1988
22
1989
32
1990
19
1991
6
1992
1
1993
7
1994
8
1995
20
1996
17
1997
21
1998
15
1999
18
2000
28
2001
23
2002
22
2003
11
2004
13
2005
19
2006
15
2007
25
2008
16
2009
15
2010
11
2011
14
2012
38
2013
12
2014
14
All-Time Record Progression
6 new records
6 all-time records were set at Hesperia 4 WNW between 31 August 1975 and 7 July 2012. Each dot is a new record.
When Hesperia 4 WNW set new all-time records
Date
Kind
Detail
1975-08-31
Record daily precipitation
Record daily precipitation 157.2 mm (6.2 in)
1981-11-20
Record daily snowfall
Record daily snowfall 31.2 cm (12.3 in)
1982-01-17
Record low maximum temperature
Record low maximum temperature -20.0 C (-4.0 F)
1986-09-11
Record daily precipitation
Record daily precipitation 166.6 mm (6.6 in)
1999-01-13
Record snow depth
Record snow depth 83.8 cm (33.0 in)
2012-07-07
Record high maximum temperature
Record high maximum temperature 38.3 C (100.9 F)
Wettest Day of Each Month
Sep: 166.6 mm (6.6 in)
The wettest day on record for each calendar month at Hesperia 4 WNW. The most was 166.6 mm (6.6 in) on 11 September 1986.
Record daily precipitation for each month at Hesperia 4 WNW
Month
Record daily precipitation (mm)
Date
Jan
48.3 mm (1.9 in)
27 January 1974
Feb
48.8 mm (1.9 in)
22 February 1974
Mar
71.4 mm (2.8 in)
5 March 1976
Apr
97.8 mm (3.9 in)
17 April 1967
May
64.3 mm (2.5 in)
15 May 2001
Jun
125.0 mm (4.9 in)
11 June 1939
Jul
88.6 mm (3.5 in)
28 July 1983
Aug
157.2 mm (6.2 in)
31 August 1975
Sep
166.6 mm (6.6 in)
11 September 1986
Oct
106.2 mm (4.2 in)
3 October 1954
Nov
71.9 mm (2.8 in)
18 November 2013
Dec
51.6 mm (2.0 in)
10 December 1971
Period of Record Coverage
1894 to 2014
Complete yearUnder 90 percent of days
69 years of record at Hesperia 4 WNW, 1894 to 2014. 14 years have data for under 90 percent of days and are left out of rankings: 1894, 1897, 1950, 1953, 1987, 1988, 1990, 1991 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 52 complete years at Hesperia 4 WNW, 1895 to 2013. Blue stripes are years cooler than the station's own mean of 7.7 C (45.8 F); red stripes are warmer. The coolest year was 1978, at 5.9 C (42.6 F), and the warmest was 2012, at 9.6 C (49.3 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Hesperia 4 WNW as warming stripes, 1895 to 2013
Year
Annual mean temperature
Difference from the station mean
1895
7.2 C
-0.45 C
1896
8.0 C
+0.35 C
1951
7.3 C
-0.37 C
1954
8.6 C
+0.91 C
1955
8.7 C
+1.04 C
1956
7.8 C
+0.12 C
1957
8.1 C
+0.39 C
1958
6.8 C
-0.87 C
1959
7.4 C
-0.24 C
1960
7.4 C
-0.24 C
1961
8.0 C
+0.30 C
1962
7.4 C
-0.27 C
1963
7.3 C
-0.39 C
1964
8.7 C
+1.05 C
1965
7.8 C
+0.13 C
1966
7.5 C
-0.16 C
1967
7.3 C
-0.42 C
1968
7.7 C
+0.00 C
1969
7.3 C
-0.41 C
1970
7.6 C
-0.08 C
1972
7.1 C
-0.55 C
1973
9.1 C
+1.39 C
1974
7.6 C
-0.09 C
1975
8.2 C
+0.50 C
1976
6.4 C
-1.33 C
1977
7.1 C
-0.59 C
1978
5.9 C
-1.79 C
1979
6.5 C
-1.21 C
1981
7.4 C
-0.30 C
1982
6.9 C
-0.74 C
1983
7.6 C
-0.08 C
1984
7.3 C
-0.43 C
1985
7.2 C
-0.45 C
1986
7.7 C
-0.03 C
1989
6.4 C
-1.24 C
1997
6.6 C
-1.07 C
1998
9.4 C
+1.69 C
1999
8.2 C
+0.50 C
2000
7.7 C
+0.05 C
2001
8.6 C
+0.96 C
2002
8.1 C
+0.38 C
2003
7.2 C
-0.52 C
2004
7.4 C
-0.30 C
2005
8.2 C
+0.56 C
2006
8.8 C
+1.14 C
2007
8.5 C
+0.79 C
2008
7.2 C
-0.46 C
2009
7.2 C
-0.51 C
2010
8.8 C
+1.16 C
2011
8.2 C
+0.51 C
2012
9.6 C
+1.93 C
2013
7.3 C
-0.34 C
The fitted trend in annual mean temperature here over 1895 to 2013 is 0.05 C (-0.04 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Hesperia 4 WNW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.05 C (-0.04 to 0.13) per decade
0.1 F (-0.1 to 0.2) per decade
1895 to 2013
52
Not clearly different from zero
Mean daily maximum
0.08 C (-0.01 to 0.17) per decade
0.15 F (-0.02 to 0.31) per decade
1895 to 2013
52
Not clearly different from zero
Mean daily minimum
0.01 C (-0.09 to 0.11) per decade
0.01 F (-0.16 to 0.19) per decade
1895 to 2013
52
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
1894 to 2014
Yearly extremes at Hesperia 4 WNW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
2012
33.3 C (91.9 F)
69
Coldest night (TNn)
-37.2 C (-35.0 F)
1951
-24.4 C (-11.9 F)
69
Wettest day (Rx1day)
166.6 mm (6.6 in)
1986
51.6 mm (2.0 in)
81
Wettest five days (Rx5day)
219.1 mm (8.6 in)
1986
72.1 mm (2.8 in)
81
Longest dry spell (CDD)
37 days
1955
16 days
81
Hottest day (TXx)
The hottest day of the year at Hesperia 4 WNW, 1894 to 2014. The record is 38.3 C (100.9 F) in 2012, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Hesperia 4 WNW by year
Year
Hottest day (TXx)
1894
34.4 C (93.9 F)
1895
37.2 C (99.0 F)
1896
35.6 C (96.1 F)
1897
33.3 C (91.9 F)
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
33.3 C (91.9 F)
1951
34.4 C (93.9 F)
1952
34.4 C (93.9 F)
1953
35.6 C (96.1 F)
1954
33.3 C (91.9 F)
1955
37.8 C (100.0 F)
1956
35.0 C (95.0 F)
1957
33.3 C (91.9 F)
1958
32.2 C (90.0 F)
1959
32.8 C (91.0 F)
1960
33.3 C (91.9 F)
1961
33.3 C (91.9 F)
1962
33.9 C (93.0 F)
1963
35.6 C (96.1 F)
1964
36.1 C (97.0 F)
1965
33.9 C (93.0 F)
1966
36.1 C (97.0 F)
1967
31.7 C (89.1 F)
1968
34.4 C (93.9 F)
1969
32.8 C (91.0 F)
1970
35.6 C (96.1 F)
1971
33.3 C (91.9 F)
1972
32.2 C (90.0 F)
1973
34.4 C (93.9 F)
1974
32.2 C (90.0 F)
1975
34.4 C (93.9 F)
1976
33.3 C (91.9 F)
1977
33.9 C (93.0 F)
1978
32.8 C (91.0 F)
1979
32.8 C (91.0 F)
1980
32.8 C (91.0 F)
1981
32.8 C (91.0 F)
1982
31.7 C (89.1 F)
1983
35.0 C (95.0 F)
1984
32.8 C (91.0 F)
1985
33.3 C (91.9 F)
1986
32.2 C (90.0 F)
1987
34.4 C (93.9 F)
1988
36.7 C (98.1 F)
1989
32.2 C (90.0 F)
1990
31.1 C (88.0 F)
1991
32.8 C (91.0 F)
1992
31.1 C (88.0 F)
1993
32.8 C (91.0 F)
1994
30.0 C (86.0 F)
1995
37.2 C (99.0 F)
1996
31.1 C (88.0 F)
1997
31.7 C (89.1 F)
1998
32.8 C (91.0 F)
1999
35.6 C (96.1 F)
2000
32.2 C (90.0 F)
2001
37.2 C (99.0 F)
2002
33.9 C (93.0 F)
2003
33.3 C (91.9 F)
2004
30.6 C (87.1 F)
2005
35.0 C (95.0 F)
2006
34.4 C (93.9 F)
2007
35.6 C (96.1 F)
2008
33.3 C (91.9 F)
2009
35.6 C (96.1 F)
2010
33.3 C (91.9 F)
2011
34.4 C (93.9 F)
2012
38.3 C (100.9 F)
2013
33.3 C (91.9 F)
2014
31.7 C (89.1 F)
Coldest night (TNn)
The coldest night of the year at Hesperia 4 WNW, 1894 to 2014. The record is -37.2 C (-35.0 F) in 1951, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Hesperia 4 WNW by year
Year
Coldest night (TNn)
1894
-16.7 C (1.9 F)
1895
-31.1 C (-24.0 F)
1896
-23.9 C (-11.0 F)
1897
-20.6 C (-5.1 F)
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1942
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
-18.9 C (-2.0 F)
1951
-37.2 C (-35.0 F)
1952
-22.2 C (-8.0 F)
1953
-21.1 C (-6.0 F)
1954
-24.4 C (-11.9 F)
1955
-23.3 C (-9.9 F)
1956
-21.7 C (-7.1 F)
1957
-20.0 C (-4.0 F)
1958
-27.2 C (-17.0 F)
1959
-29.4 C (-20.9 F)
1960
-24.4 C (-11.9 F)
1961
-26.1 C (-15.0 F)
1962
-26.1 C (-15.0 F)
1963
-30.0 C (-22.0 F)
1964
-21.1 C (-6.0 F)
1965
-24.4 C (-11.9 F)
1966
-30.6 C (-23.1 F)
1967
-30.0 C (-22.0 F)
1968
-27.2 C (-17.0 F)
1969
-23.3 C (-9.9 F)
1970
-25.6 C (-14.1 F)
1971
-21.7 C (-7.1 F)
1972
-28.3 C (-18.9 F)
1973
-24.4 C (-11.9 F)
1974
-23.9 C (-11.0 F)
1975
-19.4 C (-2.9 F)
1976
-28.9 C (-20.0 F)
1977
-27.8 C (-18.0 F)
1978
-26.1 C (-15.0 F)
1979
-28.3 C (-18.9 F)
1980
-23.9 C (-11.0 F)
1981
-28.9 C (-20.0 F)
1982
-25.0 C (-13.0 F)
1983
-28.9 C (-20.0 F)
1984
-30.6 C (-23.1 F)
1985
-27.2 C (-17.0 F)
1986
-23.3 C (-9.9 F)
1987
-26.1 C (-15.0 F)
1988
-27.2 C (-17.0 F)
1989
-26.1 C (-15.0 F)
1990
-18.3 C (-0.9 F)
1991
-16.1 C (3.0 F)
1992
-24.4 C (-11.9 F)
1993
-23.9 C (-11.0 F)
1994
-30.6 C (-23.1 F)
1995
-22.2 C (-8.0 F)
1996
-35.0 C (-31.0 F)
1997
-21.7 C (-7.1 F)
1998
-19.4 C (-2.9 F)
1999
-24.4 C (-11.9 F)
2000
-23.3 C (-9.9 F)
2001
-20.6 C (-5.1 F)
2002
-20.6 C (-5.1 F)
2003
-23.9 C (-11.0 F)
2004
-23.3 C (-9.9 F)
2005
-27.8 C (-18.0 F)
2006
-19.4 C (-2.9 F)
2007
-27.8 C (-18.0 F)
2008
-25.0 C (-13.0 F)
2009
-25.6 C (-14.1 F)
2010
-21.1 C (-6.0 F)
2011
-26.1 C (-15.0 F)
2012
-17.8 C (0.0 F)
2013
-22.8 C (-9.0 F)
2014
-27.8 C (-18.0 F)
Wettest day (Rx1day)
The wettest day of the year at Hesperia 4 WNW, 1894 to 2014. The record is 166.6 mm (6.6 in) in 1986, marked on the chart; the median year is 51.6 mm (2.0 in).
Wettest day (Rx1day) at Hesperia 4 WNW by year
Year
Wettest day (Rx1day)
1894
25.1 mm (1.0 in)
1895
30.5 mm (1.2 in)
1896
29.0 mm (1.1 in)
1897
29.5 mm (1.2 in)
1938
26.7 mm (1.1 in)
1939
125.0 mm (4.9 in)
1940
43.4 mm (1.7 in)
1941
58.9 mm (2.3 in)
1942
43.2 mm (1.7 in)
1943
39.4 mm (1.6 in)
1944
24.1 mm (0.9 in)
1945
49.0 mm (1.9 in)
1946
50.3 mm (2.0 in)
1947
54.1 mm (2.1 in)
1948
49.8 mm (2.0 in)
1949
52.8 mm (2.1 in)
1950
31.8 mm (1.3 in)
1951
46.2 mm (1.8 in)
1952
87.9 mm (3.5 in)
1953
30.7 mm (1.2 in)
1954
106.2 mm (4.2 in)
1955
25.9 mm (1.0 in)
1956
52.1 mm (2.1 in)
1957
44.5 mm (1.8 in)
1958
65.5 mm (2.6 in)
1959
76.2 mm (3.0 in)
1960
48.3 mm (1.9 in)
1961
54.6 mm (2.1 in)
1962
33.5 mm (1.3 in)
1963
53.8 mm (2.1 in)
1964
34.3 mm (1.4 in)
1965
79.2 mm (3.1 in)
1966
41.9 mm (1.6 in)
1967
97.8 mm (3.9 in)
1968
35.8 mm (1.4 in)
1969
96.5 mm (3.8 in)
1970
44.5 mm (1.8 in)
1971
51.6 mm (2.0 in)
1972
51.6 mm (2.0 in)
1973
52.1 mm (2.1 in)
1974
50.5 mm (2.0 in)
1975
157.2 mm (6.2 in)
1976
71.4 mm (2.8 in)
1977
38.1 mm (1.5 in)
1978
87.9 mm (3.5 in)
1979
55.9 mm (2.2 in)
1980
100.3 mm (3.9 in)
1981
61.7 mm (2.4 in)
1982
71.6 mm (2.8 in)
1983
88.6 mm (3.5 in)
1984
64.5 mm (2.5 in)
1985
56.6 mm (2.2 in)
1986
166.6 mm (6.6 in)
1987
51.1 mm (2.0 in)
1988
41.9 mm (1.6 in)
1989
56.9 mm (2.2 in)
1990
65.5 mm (2.6 in)
1991
52.3 mm (2.1 in)
1992
27.2 mm (1.1 in)
1993
34.8 mm (1.4 in)
1994
42.4 mm (1.7 in)
1995
39.6 mm (1.6 in)
1996
35.8 mm (1.4 in)
1997
48.5 mm (1.9 in)
1998
54.4 mm (2.1 in)
1999
40.9 mm (1.6 in)
2000
67.1 mm (2.6 in)
2001
82.6 mm (3.3 in)
2002
38.4 mm (1.5 in)
2003
38.4 mm (1.5 in)
2004
60.7 mm (2.4 in)
2005
57.9 mm (2.3 in)
2006
57.4 mm (2.3 in)
2007
41.1 mm (1.6 in)
2008
68.3 mm (2.7 in)
2009
49.8 mm (2.0 in)
2010
47.2 mm (1.9 in)
2011
68.8 mm (2.7 in)
2012
46.2 mm (1.8 in)
2013
71.9 mm (2.8 in)
2014
68.8 mm (2.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Hesperia 4 WNW, 1894 to 2014. The record is 219.1 mm (8.6 in) in 1986, marked on the chart; the median year is 72.1 mm (2.8 in).
Wettest five days (Rx5day) at Hesperia 4 WNW by year
Year
Wettest five days (Rx5day)
1894
33.5 mm (1.3 in)
1895
56.9 mm (2.2 in)
1896
56.4 mm (2.2 in)
1897
115.4 mm (4.5 in)
1938
34.5 mm (1.4 in)
1939
196.1 mm (7.7 in)
1940
73.7 mm (2.9 in)
1941
34.0 mm (1.3 in)
1942
45.7 mm (1.8 in)
1943
81.0 mm (3.2 in)
1944
36.9 mm (1.5 in)
1945
74.4 mm (2.9 in)
1946
50.3 mm (2.0 in)
1947
60.1 mm (2.4 in)
1948
66.1 mm (2.6 in)
1949
69.6 mm (2.7 in)
1950
45.8 mm (1.8 in)
1951
52.5 mm (2.1 in)
1952
49.0 mm (1.9 in)
1953
60.5 mm (2.4 in)
1954
129.8 mm (5.1 in)
1955
71.6 mm (2.8 in)
1956
77.0 mm (3.0 in)
1957
63.5 mm (2.5 in)
1958
69.6 mm (2.7 in)
1959
84.8 mm (3.3 in)
1960
87.6 mm (3.4 in)
1961
87.7 mm (3.5 in)
1962
45.8 mm (1.8 in)
1963
65.5 mm (2.6 in)
1964
60.0 mm (2.4 in)
1965
107.6 mm (4.2 in)
1966
94.0 mm (3.7 in)
1967
125.7 mm (4.9 in)
1968
52.5 mm (2.1 in)
1969
118.6 mm (4.7 in)
1970
68.6 mm (2.7 in)
1971
61.8 mm (2.4 in)
1972
84.1 mm (3.3 in)
1973
66.3 mm (2.6 in)
1974
118.7 mm (4.7 in)
1975
204.9 mm (8.1 in)
1976
125.2 mm (4.9 in)
1977
55.6 mm (2.2 in)
1978
129.9 mm (5.1 in)
1979
69.9 mm (2.8 in)
1980
125.5 mm (4.9 in)
1981
86.3 mm (3.4 in)
1982
85.6 mm (3.4 in)
1983
122.4 mm (4.8 in)
1984
104.7 mm (4.1 in)
1985
63.2 mm (2.5 in)
1986
219.1 mm (8.6 in)
1987
92.0 mm (3.6 in)
1988
86.1 mm (3.4 in)
1989
112.5 mm (4.4 in)
1990
75.4 mm (3.0 in)
1991
52.3 mm (2.1 in)
1992
39.9 mm (1.6 in)
1993
46.2 mm (1.8 in)
1994
48.8 mm (1.9 in)
1995
44.7 mm (1.8 in)
1996
63.2 mm (2.5 in)
1997
88.9 mm (3.5 in)
1998
76.5 mm (3.0 in)
1999
55.1 mm (2.2 in)
2000
71.4 mm (2.8 in)
2001
101.4 mm (4.0 in)
2002
47.5 mm (1.9 in)
2003
72.1 mm (2.8 in)
2004
116.2 mm (4.6 in)
2005
96.8 mm (3.8 in)
2006
88.6 mm (3.5 in)
2007
48.0 mm (1.9 in)
2008
104.9 mm (4.1 in)
2009
73.1 mm (2.9 in)
2010
64.1 mm (2.5 in)
2011
70.3 mm (2.8 in)
2012
85.6 mm (3.4 in)
2013
90.9 mm (3.6 in)
2014
98.5 mm (3.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Hesperia 4 WNW, 1894 to 2014. The record is 37 days in 1955, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Hesperia 4 WNW by year
Year
Longest dry spell (CDD)
1894
19 days
1895
22 days
1896
17 days
1897
8 days
1938
12 days
1939
20 days
1940
23 days
1941
2 days
1942
2 days
1943
18 days
1944
22 days
1945
16 days
1946
26 days
1947
23 days
1948
25 days
1949
21 days
1950
12 days
1951
16 days
1952
23 days
1953
22 days
1954
19 days
1955
37 days
1956
31 days
1957
17 days
1958
33 days
1959
22 days
1960
16 days
1961
12 days
1962
19 days
1963
14 days
1964
14 days
1965
14 days
1966
16 days
1967
15 days
1968
24 days
1969
29 days
1970
15 days
1971
23 days
1972
14 days
1973
14 days
1974
14 days
1975
15 days
1976
14 days
1977
13 days
1978
14 days
1979
35 days
1980
12 days
1981
17 days
1982
21 days
1983
17 days
1984
16 days
1985
12 days
1986
17 days
1987
17 days
1988
23 days
1989
21 days
1990
18 days
1991
14 days
1992
13 days
1993
11 days
1994
28 days
1995
18 days
1996
15 days
1997
19 days
1998
13 days
1999
24 days
2000
18 days
2001
11 days
2002
16 days
2003
18 days
2004
16 days
2005
15 days
2006
13 days
2007
23 days
2008
14 days
2009
21 days
2010
15 days
2011
15 days
2012
14 days
2013
16 days
2014
14 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
52 years with a frost
Across 52 years with a frost, the median last spring frost at Hesperia 4 WNW falls on 21 May and the median first autumn frost on 24 September, which leaves a median of 124 days between them.
Fitted over all years, the growing season changes by 0.0 days per decade at this station.
Frost dates and growing season at Hesperia 4 WNW
Measure
Median, all years
Earliest period
Recent period (1974 to 2013)
Recent against earliest
Fitted trend
Last spring frost
21 May
n/a
21 May
n/a
+0.2 days per decade
First autumn frost
24 September
n/a
24 September
n/a
+0.1 days per decade
Growing days
124 days
n/a
124 days
n/a
0.0 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
62 years, 1939 to 2013
A day with at least 54.8 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 172.2 mm (6.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Hesperia 4 WNW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
54.8 mm (2.2 in)
5 years
75.8 mm (3.0 in)
10 years
93.1 mm (3.7 in)
25 years
119.8 mm (4.7 in)
50 years
143.9 mm (5.7 in)
100 years
172.2 mm (6.8 in)
Longer than the 62 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, 62 years of values from 1939 to 2013.
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: 166.6 mm (6.6 in) in 1986; 157.2 mm (6.2 in) in 1975; 125.0 mm (4.9 in) in 1939.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Hesperia 4 WNW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hesperia 4 WNW 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.