Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at San Fernando. 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 San Fernando, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
35.6 C (96.1 F)
-7.8 C (18.0 F)
n/a
n/a
Feb
38.9 C (102.0 F)
-10.0 C (14.0 F)
n/a
n/a
Mar
41.1 C (106.0 F)
-2.2 C (28.0 F)
n/a
n/a
Apr
43.3 C (109.9 F)
1.7 C (35.1 F)
n/a
n/a
May
43.9 C (111.0 F)
10.0 C (50.0 F)
n/a
n/a
Jun
43.9 C (111.0 F)
13.3 C (55.9 F)
n/a
n/a
Jul
41.7 C (107.1 F)
17.2 C (63.0 F)
n/a
n/a
Aug
41.7 C (107.1 F)
17.2 C (63.0 F)
n/a
n/a
Sep
45.0 C (113.0 F)
10.6 C (51.1 F)
n/a
n/a
Oct
41.7 C (107.1 F)
1.1 C (34.0 F)
n/a
n/a
Nov
42.2 C (108.0 F)
-2.8 C (27.0 F)
n/a
n/a
Dec
36.1 C (97.0 F)
-8.9 C (16.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at San Fernando still stand. 1933 holds the most, with 65.
Standing records at San Fernando by the year they were set
Year set
Standing records
1931
2
1932
29
1933
65
1934
21
1935
22
1936
19
1937
20
1938
11
1939
20
1940
30
1943
14
1944
28
1947
16
1948
27
1949
25
1950
32
1951
16
1952
11
1953
22
1954
18
1955
28
1956
9
1957
26
1958
11
1959
29
1960
24
1961
18
1962
13
1963
21
1964
28
1965
14
1966
20
1967
14
1968
16
1969
12
1970
24
1971
12
1972
11
1973
20
1974
27
1975
19
1976
18
1977
7
1978
13
1979
12
1980
23
1981
17
1982
38
1983
38
1984
19
1985
19
1986
10
1987
13
1988
10
1989
27
1990
22
1991
34
1992
13
1993
10
1994
25
1995
28
1996
26
1997
19
1998
30
1999
11
2000
11
2001
15
2002
8
2003
12
2004
8
2005
13
2006
14
2007
9
2008
16
2009
15
2010
4
2011
13
All-Time Record Progression
1 new records
1 all-time records were set at San Fernando between 24 December 1983 and 24 December 1983. Each dot is a new record.
When San Fernando set new all-time records
Date
Kind
Detail
1983-12-24
Record low maximum temperature
Record low maximum temperature 0.0 C (32.0 F)
Wettest Day of Each Month
Aug: 231.4 mm (9.1 in)
The wettest day on record for each calendar month at San Fernando. The most was 231.4 mm (9.1 in) on 4 August 1933.
Record daily precipitation for each month at San Fernando
Month
Record daily precipitation (mm)
Date
Jan
63.8 mm (2.5 in)
15 January 2011
Feb
70.9 mm (2.8 in)
16 February 1957
Mar
115.3 mm (4.5 in)
29 March 2004
Apr
87.4 mm (3.4 in)
27 April 1982
May
163.6 mm (6.4 in)
5 May 1963
Jun
174.8 mm (6.9 in)
19 June 1957
Jul
112.8 mm (4.4 in)
6 July 1933
Aug
231.4 mm (9.1 in)
4 August 1933
Sep
158.8 mm (6.3 in)
22 September 1978
Oct
144.3 mm (5.7 in)
3 October 1950
Nov
108.0 mm (4.3 in)
3 November 1952
Dec
78.0 mm (3.1 in)
2 December 1989
Period of Record Coverage
1931 to 2011
Complete yearUnder 90 percent of days
77 years of record at San Fernando, 1931 to 2011. 7 years have data for under 90 percent of days and are left out of rankings: 1931, 1960, 2006, 2007, 2008, 2009, 2011.
Cooler than the station meanWarmer than the station mean
One stripe for each of 60 complete years at San Fernando, 1932 to 2005. Blue stripes are years cooler than the station's own mean of 23.3 C (73.9 F); red stripes are warmer. The coolest year was 1983, at 21.3 C (70.4 F), and the warmest was 1950, at 25.2 C (77.3 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at San Fernando as warming stripes, 1932 to 2005
Year
Annual mean temperature
Difference from the station mean
1932
23.4 C
+0.15 C
1933
24.2 C
+0.98 C
1934
24.3 C
+1.04 C
1936
22.4 C
-0.82 C
1937
23.1 C
-0.19 C
1939
23.3 C
+0.08 C
1940
23.0 C
-0.31 C
1943
23.4 C
+0.13 C
1944
23.0 C
-0.26 C
1947
22.9 C
-0.32 C
1948
23.6 C
+0.29 C
1950
25.2 C
+1.93 C
1951
23.8 C
+0.54 C
1953
24.3 C
+1.05 C
1954
24.1 C
+0.79 C
1955
23.5 C
+0.24 C
1957
24.5 C
+1.21 C
1958
23.2 C
-0.11 C
1959
23.0 C
-0.30 C
1961
23.4 C
+0.18 C
1962
24.1 C
+0.80 C
1963
23.4 C
+0.15 C
1964
23.9 C
+0.67 C
1966
22.5 C
-0.74 C
1967
23.1 C
-0.19 C
1968
22.3 C
-0.92 C
1969
23.2 C
-0.07 C
1970
22.3 C
-1.01 C
1971
23.3 C
+0.06 C
1972
23.2 C
-0.07 C
1973
22.4 C
-0.86 C
1974
23.1 C
-0.13 C
1975
23.2 C
-0.09 C
1976
21.7 C
-1.55 C
1977
22.9 C
-0.36 C
1978
22.7 C
-0.59 C
1979
22.4 C
-0.82 C
1980
23.0 C
-0.22 C
1981
22.4 C
-0.86 C
1982
22.0 C
-1.24 C
1983
21.3 C
-1.95 C
1984
22.1 C
-1.19 C
1985
22.2 C
-1.03 C
1986
23.0 C
-0.29 C
1987
22.2 C
-1.06 C
1988
22.6 C
-0.63 C
1989
23.3 C
+0.01 C
1990
24.3 C
+1.02 C
1991
23.9 C
+0.63 C
1992
23.2 C
-0.06 C
1993
23.3 C
+0.02 C
1994
24.3 C
+0.99 C
1995
24.0 C
+0.73 C
1996
23.9 C
+0.63 C
1997
23.1 C
-0.13 C
1998
24.7 C
+1.48 C
1999
24.1 C
+0.79 C
2000
23.9 C
+0.61 C
2004
23.6 C
+0.33 C
2005
24.2 C
+0.93 C
The fitted trend in annual mean temperature here over 1932 to 2005 is -0.03 C (-0.13 to 0.07) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.05 F (-0.23 to 0.13) per decade. The slope is a straight line fitted to 60 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at San Fernando
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.03 C (-0.13 to 0.07) per decade
-0.05 F (-0.23 to 0.13) per decade
1932 to 2005
60
Not clearly different from zero
Mean daily maximum
-0.07 C (-0.18 to 0.04) per decade
-0.1 F (-0.3 to 0.1) per decade
1932 to 2005
60
Not clearly different from zero
Mean daily minimum
0.02 C (-0.11 to 0.14) per decade
0.03 F (-0.20 to 0.26) per decade
1932 to 2005
60
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
1931 to 2011
Yearly extremes at San Fernando: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
45.0 C (113.0 F)
1961
40.0 C (104.0 F)
77
Coldest night (TNn)
-10.0 C (14.0 F)
1951
-1.1 C (30.0 F)
77
Wettest day (Rx1day)
231.4 mm (9.1 in)
1933
80.3 mm (3.2 in)
77
Wettest five days (Rx5day)
297.0 mm (11.7 in)
1967
144.3 mm (5.7 in)
77
Longest dry spell (CDD)
99 days
2011
47 days
77
Hottest day (TXx)
The hottest day of the year at San Fernando, 1931 to 2011. The record is 45.0 C (113.0 F) in 1961, marked on the chart; the median year is 40.0 C (104.0 F).
Hottest day (TXx) at San Fernando by year
Year
Hottest day (TXx)
1931
37.2 C (99.0 F)
1932
40.6 C (105.1 F)
1933
42.2 C (108.0 F)
1934
38.9 C (102.0 F)
1935
39.4 C (102.9 F)
1936
40.6 C (105.1 F)
1937
40.0 C (104.0 F)
1938
37.8 C (100.0 F)
1939
41.1 C (106.0 F)
1940
38.9 C (102.0 F)
1943
41.1 C (106.0 F)
1944
40.0 C (104.0 F)
1947
38.9 C (102.0 F)
1948
40.6 C (105.1 F)
1949
40.6 C (105.1 F)
1950
40.0 C (104.0 F)
1951
39.4 C (102.9 F)
1952
38.9 C (102.0 F)
1953
43.3 C (109.9 F)
1954
41.1 C (106.0 F)
1955
40.0 C (104.0 F)
1956
40.0 C (104.0 F)
1957
41.1 C (106.0 F)
1958
40.0 C (104.0 F)
1959
41.1 C (106.0 F)
1960
41.7 C (107.1 F)
1961
45.0 C (113.0 F)
1962
40.6 C (105.1 F)
1963
40.6 C (105.1 F)
1964
41.1 C (106.0 F)
1965
40.0 C (104.0 F)
1966
40.0 C (104.0 F)
1967
41.1 C (106.0 F)
1968
38.9 C (102.0 F)
1969
40.0 C (104.0 F)
1970
39.4 C (102.9 F)
1971
40.0 C (104.0 F)
1972
39.4 C (102.9 F)
1973
41.7 C (107.1 F)
1974
42.8 C (109.0 F)
1975
41.1 C (106.0 F)
1976
38.9 C (102.0 F)
1977
40.0 C (104.0 F)
1978
40.6 C (105.1 F)
1979
40.0 C (104.0 F)
1980
40.0 C (104.0 F)
1981
38.9 C (102.0 F)
1982
38.9 C (102.0 F)
1983
38.9 C (102.0 F)
1984
40.6 C (105.1 F)
1985
38.9 C (102.0 F)
1986
40.0 C (104.0 F)
1987
38.9 C (102.0 F)
1988
40.0 C (104.0 F)
1989
40.6 C (105.1 F)
1990
39.4 C (102.9 F)
1991
41.7 C (107.1 F)
1992
38.9 C (102.0 F)
1993
38.3 C (100.9 F)
1994
39.4 C (102.9 F)
1995
41.1 C (106.0 F)
1996
41.1 C (106.0 F)
1997
41.7 C (107.1 F)
1998
43.9 C (111.0 F)
1999
43.9 C (111.0 F)
2000
41.1 C (106.0 F)
2001
41.7 C (107.1 F)
2002
40.6 C (105.1 F)
2003
40.6 C (105.1 F)
2004
40.0 C (104.0 F)
2005
41.1 C (106.0 F)
2006
40.0 C (104.0 F)
2007
39.4 C (102.9 F)
2008
41.1 C (106.0 F)
2009
41.1 C (106.0 F)
2010
39.4 C (102.9 F)
2011
40.6 C (105.1 F)
Coldest night (TNn)
The coldest night of the year at San Fernando, 1931 to 2011. The record is -10.0 C (14.0 F) in 1951, marked on the chart; the median year is -1.1 C (30.0 F).
Coldest night (TNn) at San Fernando by year
Year
Coldest night (TNn)
1931
8.9 C (48.0 F)
1932
-2.2 C (28.0 F)
1933
0.0 C (32.0 F)
1934
-1.1 C (30.0 F)
1935
0.0 C (32.0 F)
1936
0.0 C (32.0 F)
1937
1.7 C (35.1 F)
1938
-2.2 C (28.0 F)
1939
1.7 C (35.1 F)
1940
-5.0 C (23.0 F)
1943
0.6 C (33.1 F)
1944
-3.9 C (25.0 F)
1947
0.0 C (32.0 F)
1948
0.0 C (32.0 F)
1949
-0.6 C (30.9 F)
1950
-5.0 C (23.0 F)
1951
-10.0 C (14.0 F)
1952
0.0 C (32.0 F)
1953
-3.3 C (26.1 F)
1954
0.6 C (33.1 F)
1955
-1.7 C (28.9 F)
1956
-4.4 C (24.1 F)
1957
-3.9 C (25.0 F)
1958
-1.1 C (30.0 F)
1959
0.0 C (32.0 F)
1960
-1.1 C (30.0 F)
1961
0.0 C (32.0 F)
1962
-7.8 C (18.0 F)
1963
-3.3 C (26.1 F)
1964
-2.8 C (27.0 F)
1965
-0.6 C (30.9 F)
1966
-2.2 C (28.0 F)
1967
-1.1 C (30.0 F)
1968
-1.1 C (30.0 F)
1969
1.1 C (34.0 F)
1970
-1.7 C (28.9 F)
1971
0.0 C (32.0 F)
1972
0.0 C (32.0 F)
1973
-4.4 C (24.1 F)
1974
-2.8 C (27.0 F)
1975
-5.0 C (23.0 F)
1976
-4.4 C (24.1 F)
1977
-2.2 C (28.0 F)
1978
-2.2 C (28.0 F)
1979
-4.4 C (24.1 F)
1980
0.0 C (32.0 F)
1981
0.0 C (32.0 F)
1982
-5.6 C (21.9 F)
1983
-7.8 C (18.0 F)
1984
-5.0 C (23.0 F)
1985
-5.0 C (23.0 F)
1986
-0.6 C (30.9 F)
1987
-2.8 C (27.0 F)
1988
0.0 C (32.0 F)
1989
-8.9 C (16.0 F)
1990
-1.1 C (30.0 F)
1991
2.2 C (36.0 F)
1992
0.0 C (32.0 F)
1993
0.0 C (32.0 F)
1994
3.3 C (37.9 F)
1995
2.8 C (37.0 F)
1996
-2.2 C (28.0 F)
1997
-1.7 C (28.9 F)
1998
1.1 C (34.0 F)
1999
0.0 C (32.0 F)
2000
2.8 C (37.0 F)
2001
1.7 C (35.1 F)
2002
3.3 C (37.9 F)
2003
0.0 C (32.0 F)
2004
-1.7 C (28.9 F)
2005
0.6 C (33.1 F)
2006
1.7 C (35.1 F)
2007
2.8 C (37.0 F)
2008
1.1 C (34.0 F)
2009
0.0 C (32.0 F)
2010
-2.2 C (28.0 F)
2011
-2.8 C (27.0 F)
Wettest day (Rx1day)
The wettest day of the year at San Fernando, 1931 to 2011. The record is 231.4 mm (9.1 in) in 1933, marked on the chart; the median year is 80.3 mm (3.2 in).
Wettest day (Rx1day) at San Fernando by year
Year
Wettest day (Rx1day)
1931
1.3 mm (0.05 in)
1932
64.8 mm (2.6 in)
1933
231.4 mm (9.1 in)
1934
71.4 mm (2.8 in)
1935
81.8 mm (3.2 in)
1936
57.9 mm (2.3 in)
1937
38.9 mm (1.5 in)
1938
225.8 mm (8.9 in)
1939
56.9 mm (2.2 in)
1940
75.9 mm (3.0 in)
1943
85.9 mm (3.4 in)
1944
74.9 mm (2.9 in)
1947
136.9 mm (5.4 in)
1948
73.9 mm (2.9 in)
1949
40.4 mm (1.6 in)
1950
144.3 mm (5.7 in)
1951
115.8 mm (4.6 in)
1952
108.0 mm (4.3 in)
1953
69.9 mm (2.8 in)
1954
111.0 mm (4.4 in)
1955
62.5 mm (2.5 in)
1956
70.9 mm (2.8 in)
1957
174.8 mm (6.9 in)
1958
79.8 mm (3.1 in)
1959
69.9 mm (2.8 in)
1960
45.0 mm (1.8 in)
1961
116.8 mm (4.6 in)
1962
53.8 mm (2.1 in)
1963
163.6 mm (6.4 in)
1964
42.9 mm (1.7 in)
1965
59.9 mm (2.4 in)
1966
79.8 mm (3.1 in)
1967
126.5 mm (5.0 in)
1968
39.9 mm (1.6 in)
1969
93.5 mm (3.7 in)
1970
88.9 mm (3.5 in)
1971
154.9 mm (6.1 in)
1972
68.3 mm (2.7 in)
1973
93.5 mm (3.7 in)
1974
35.3 mm (1.4 in)
1975
118.9 mm (4.7 in)
1976
99.8 mm (3.9 in)
1977
104.9 mm (4.1 in)
1978
158.8 mm (6.3 in)
1979
71.9 mm (2.8 in)
1980
64.8 mm (2.6 in)
1981
84.8 mm (3.3 in)
1982
87.4 mm (3.4 in)
1983
65.3 mm (2.6 in)
1984
79.2 mm (3.1 in)
1985
99.8 mm (3.9 in)
1986
105.9 mm (4.2 in)
1987
87.4 mm (3.4 in)
1988
137.4 mm (5.4 in)
1989
78.0 mm (3.1 in)
1990
60.5 mm (2.4 in)
1991
84.8 mm (3.3 in)
1992
70.4 mm (2.8 in)
1993
53.3 mm (2.1 in)
1994
82.8 mm (3.3 in)
1995
70.9 mm (2.8 in)
1996
67.3 mm (2.6 in)
1997
70.9 mm (2.8 in)
1998
144.3 mm (5.7 in)
1999
101.3 mm (4.0 in)
2000
52.8 mm (2.1 in)
2001
42.9 mm (1.7 in)
2002
103.9 mm (4.1 in)
2003
105.4 mm (4.1 in)
2004
115.3 mm (4.5 in)
2005
119.4 mm (4.7 in)
2006
70.9 mm (2.8 in)
2007
101.6 mm (4.0 in)
2008
88.9 mm (3.5 in)
2009
80.3 mm (3.2 in)
2010
87.9 mm (3.5 in)
2011
63.8 mm (2.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at San Fernando, 1931 to 2011. The record is 297.0 mm (11.7 in) in 1967, marked on the chart; the median year is 144.3 mm (5.7 in).
Wettest five days (Rx5day) at San Fernando by year
Year
Wettest five days (Rx5day)
1931
1.3 mm (0.05 in)
1932
136.7 mm (5.4 in)
1933
237.5 mm (9.4 in)
1934
111.3 mm (4.4 in)
1935
157.8 mm (6.2 in)
1936
92.3 mm (3.6 in)
1937
84.2 mm (3.3 in)
1938
225.8 mm (8.9 in)
1939
124.2 mm (4.9 in)
1940
75.9 mm (3.0 in)
1943
163.3 mm (6.4 in)
1944
171.5 mm (6.8 in)
1947
185.1 mm (7.3 in)
1948
86.7 mm (3.4 in)
1949
76.9 mm (3.0 in)
1950
181.6 mm (7.1 in)
1951
148.6 mm (5.9 in)
1952
115.2 mm (4.5 in)
1953
93.6 mm (3.7 in)
1954
164.7 mm (6.5 in)
1955
128.1 mm (5.0 in)
1956
123.6 mm (4.9 in)
1957
180.9 mm (7.1 in)
1958
113.2 mm (4.5 in)
1959
175.6 mm (6.9 in)
1960
83.6 mm (3.3 in)
1961
227.6 mm (9.0 in)
1962
79.5 mm (3.1 in)
1963
175.3 mm (6.9 in)
1964
49.4 mm (1.9 in)
1965
87.9 mm (3.5 in)
1966
118.5 mm (4.7 in)
1967
297.0 mm (11.7 in)
1968
66.6 mm (2.6 in)
1969
123.7 mm (4.9 in)
1970
194.6 mm (7.7 in)
1971
224.3 mm (8.8 in)
1972
190.2 mm (7.5 in)
1973
252.0 mm (9.9 in)
1974
90.9 mm (3.6 in)
1975
207.3 mm (8.2 in)
1976
251.7 mm (9.9 in)
1977
160.8 mm (6.3 in)
1978
233.8 mm (9.2 in)
1979
185.4 mm (7.3 in)
1980
129.8 mm (5.1 in)
1981
111.0 mm (4.4 in)
1982
161.8 mm (6.4 in)
1983
94.0 mm (3.7 in)
1984
167.9 mm (6.6 in)
1985
99.8 mm (3.9 in)
1986
145.5 mm (5.7 in)
1987
147.3 mm (5.8 in)
1988
180.6 mm (7.1 in)
1989
103.1 mm (4.1 in)
1990
90.7 mm (3.6 in)
1991
205.0 mm (8.1 in)
1992
116.4 mm (4.6 in)
1993
75.0 mm (3.0 in)
1994
100.4 mm (4.0 in)
1995
172.8 mm (6.8 in)
1996
153.4 mm (6.0 in)
1997
146.9 mm (5.8 in)
1998
144.3 mm (5.7 in)
1999
162.4 mm (6.4 in)
2000
74.5 mm (2.9 in)
2001
52.8 mm (2.1 in)
2002
211.1 mm (8.3 in)
2003
176.8 mm (7.0 in)
2004
147.1 mm (5.8 in)
2005
122.2 mm (4.8 in)
2006
127.0 mm (5.0 in)
2007
110.7 mm (4.4 in)
2008
227.4 mm (9.0 in)
2009
100.1 mm (3.9 in)
2010
186.0 mm (7.3 in)
2011
105.9 mm (4.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at San Fernando, 1931 to 2011. The record is 99 days in 2011, marked on the chart; the median year is 47 days.
Longest dry spell (CDD) at San Fernando by year
Year
Longest dry spell (CDD)
1931
16 days
1932
49 days
1933
51 days
1934
29 days
1935
44 days
1936
33 days
1937
41 days
1938
61 days
1939
45 days
1940
45 days
1943
42 days
1944
68 days
1947
45 days
1948
48 days
1949
23 days
1950
76 days
1951
43 days
1952
43 days
1953
65 days
1954
74 days
1955
49 days
1956
51 days
1957
55 days
1958
50 days
1959
45 days
1960
41 days
1961
54 days
1962
63 days
1963
37 days
1964
53 days
1965
47 days
1966
43 days
1967
38 days
1968
34 days
1969
42 days
1970
45 days
1971
90 days
1972
30 days
1973
37 days
1974
47 days
1975
84 days
1976
43 days
1977
40 days
1978
40 days
1979
38 days
1980
55 days
1981
52 days
1982
49 days
1983
52 days
1984
57 days
1985
29 days
1986
60 days
1987
29 days
1988
61 days
1989
79 days
1990
35 days
1991
40 days
1992
33 days
1993
49 days
1994
49 days
1995
55 days
1996
48 days
1997
60 days
1998
78 days
1999
60 days
2000
51 days
2001
47 days
2002
61 days
2003
58 days
2004
28 days
2005
47 days
2006
43 days
2007
32 days
2008
54 days
2009
66 days
2010
35 days
2011
99 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
27 years with a frost
Across 27 years with a frost, the median last spring frost at San Fernando falls on 14 February and the median first autumn frost on 10 December, which leaves a median of 304 days between them.
Fitted over all years, the growing season changes by +2.8 days per decade at this station.
Frost dates and growing season at San Fernando
Measure
Median, all years
Earliest period
Recent period (1932 to 2004)
Recent against earliest
Fitted trend
Last spring frost
14 February
n/a
14 February
n/a
-1.1 days per decade
First autumn frost
10 December
n/a
10 December
n/a
+1.8 days per decade
Growing days
304 days
n/a
304 days
n/a
+2.8 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
71 years, 1932 to 2011
A day with at least 82.5 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 234.1 mm (9.2 in) of rain is expected about once in 100 years.
Rainfall return levels at San Fernando: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
82.5 mm (3.2 in)
5 years
116.2 mm (4.6 in)
10 years
141.0 mm (5.6 in)
25 years
175.6 mm (6.9 in)
50 years
203.8 mm (8.0 in)
100 years
234.1 mm (9.2 in)
Longer than the 71 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, 71 years of values from 1932 to 2011.
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: 231.4 mm (9.1 in) in 1933; 225.8 mm (8.9 in) in 1938; 174.8 mm (6.9 in) in 1957.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for San Fernando standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Fernando 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.