Record envelope, standing records and threshold days for Santa Clara UNIV (USC00047912), California, United States, with 84 years of record.
Key Facts for Santa Clara UNIV
Santa Clara UNIV (USC00047912) is a weather station in California, United States at 37.35 latitude and -121.93 longitude, 27 m (89 ft) above sea level.
The station reports from 1893 to 1976, 84 years of record.
1,464 records set at Santa Clara UNIV still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Santa Clara UNIV set a daily record high minimum temperature of 16.7 C (62.1 F) on 13 May 1976.
About the Station
Location: California, United States, 37.35 latitude, -121.93 longitude.
Elevation: 27 m (89 ft).
Period of record: 1893 to 1976, 84 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 Santa Clara UNIV. 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 Santa Clara UNIV, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.1 C (79.0 F)
-7.2 C (19.0 F)
n/a
n/a
Feb
27.8 C (82.0 F)
-5.0 C (23.0 F)
n/a
n/a
Mar
31.7 C (89.1 F)
-2.2 C (28.0 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-1.7 C (28.9 F)
n/a
n/a
May
40.0 C (104.0 F)
0.0 C (32.0 F)
n/a
n/a
Jun
42.2 C (108.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
43.9 C (111.0 F)
3.3 C (37.9 F)
n/a
n/a
Aug
39.4 C (102.9 F)
3.9 C (39.0 F)
n/a
n/a
Sep
42.8 C (109.0 F)
2.2 C (36.0 F)
n/a
n/a
Oct
37.8 C (100.0 F)
-1.1 C (30.0 F)
n/a
n/a
Nov
35.6 C (96.1 F)
-4.4 C (24.1 F)
n/a
n/a
Dec
26.7 C (80.1 F)
-6.7 C (19.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Santa Clara UNIV still stand. 1911 holds the most, with 48.
Standing records at Santa Clara UNIV by the year they were set
Year set
Standing records
1893
4
1894
3
1895
3
1902
1
1903
28
1904
26
1905
23
1906
30
1907
6
1908
42
1909
41
1910
33
1911
48
1912
18
1913
30
1914
30
1915
14
1916
42
1917
48
1918
19
1919
30
1920
21
1921
27
1922
25
1923
24
1924
28
1925
15
1926
37
1927
17
1928
14
1929
29
1930
21
1931
27
1932
20
1933
16
1934
19
1935
11
1936
20
1937
17
1938
6
1939
18
1940
10
1941
16
1942
7
1943
16
1944
5
1945
7
1946
13
1947
12
1948
16
1949
17
1950
23
1951
12
1952
14
1953
14
1954
13
1955
10
1956
16
1957
15
1958
18
1959
21
1960
6
1961
20
1962
14
1963
16
1964
12
1965
13
1966
18
1967
24
1968
19
1969
10
1970
20
1971
12
1972
24
1973
12
1974
8
1975
18
1976
12
All-Time Record Progression
2 new records
2 all-time records were set at Santa Clara UNIV between 24 September 1939 and 3 July 1970. Each dot is a new record.
When Santa Clara UNIV set new all-time records
Date
Kind
Detail
1939-09-24
Record high minimum temperature
Record high minimum temperature 20.0 C (68.0 F)
1970-07-03
Record high minimum temperature
Record high minimum temperature 21.7 C (71.1 F)
Wettest Day of Each Month
Sep: 111.0 mm (4.4 in)
The wettest day on record for each calendar month at Santa Clara UNIV. The most was 111.0 mm (4.4 in) on 12 September 1918.
Record daily precipitation for each month at Santa Clara UNIV
Month
Record daily precipitation (mm)
Date
Jan
96.3 mm (3.8 in)
30 January 1968
Feb
55.6 mm (2.2 in)
24 February 1917
Mar
69.1 mm (2.7 in)
21 March 1937
Apr
36.3 mm (1.4 in)
4 April 1941
May
29.2 mm (1.1 in)
4 May 1915
Jun
8.6 mm (0.34 in)
8 June 1929
Jul
5.3 mm (0.21 in)
30 July 1966
Aug
16.5 mm (0.6 in)
18 August 1975
Sep
111.0 mm (4.4 in)
12 September 1918
Oct
86.9 mm (3.4 in)
13 October 1962
Nov
53.8 mm (2.1 in)
29 November 1970
Dec
83.6 mm (3.3 in)
23 December 1955
Period of Record Coverage
1893 to 1976
Complete yearUnder 90 percent of days
77 years of record at Santa Clara UNIV, 1893 to 1976. 7 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1895, 1958, 1960, 1973, 1976.
Cooler than the station meanWarmer than the station mean
One stripe for each of 67 complete years at Santa Clara UNIV, 1904 to 1975. Blue stripes are years cooler than the station's own mean of 14.7 C (58.4 F); red stripes are warmer. The coolest year was 1919, at 13.4 C (56.0 F), and the warmest was 1959, at 16.0 C (60.8 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Santa Clara UNIV as warming stripes, 1904 to 1975
Year
Annual mean temperature
Difference from the station mean
1904
14.5 C
-0.18 C
1905
14.3 C
-0.37 C
1906
14.8 C
+0.12 C
1907
14.4 C
-0.31 C
1908
13.8 C
-0.83 C
1909
13.9 C
-0.74 C
1910
14.1 C
-0.60 C
1911
13.4 C
-1.28 C
1912
14.2 C
-0.47 C
1913
14.6 C
-0.02 C
1914
14.5 C
-0.13 C
1915
14.5 C
-0.17 C
1916
13.5 C
-1.18 C
1917
14.1 C
-0.61 C
1918
14.1 C
-0.54 C
1919
13.4 C
-1.31 C
1920
13.8 C
-0.84 C
1921
14.3 C
-0.40 C
1922
13.7 C
-1.00 C
1923
13.9 C
-0.76 C
1924
14.2 C
-0.42 C
1925
14.7 C
+0.03 C
1926
15.4 C
+0.77 C
1927
14.6 C
-0.10 C
1928
14.5 C
-0.20 C
1929
14.2 C
-0.49 C
1930
14.3 C
-0.40 C
1931
15.0 C
+0.36 C
1932
14.5 C
-0.18 C
1933
14.2 C
-0.45 C
1934
15.7 C
+1.01 C
1935
14.5 C
-0.14 C
1936
15.3 C
+0.67 C
1937
14.7 C
+0.06 C
1938
14.8 C
+0.16 C
1939
15.0 C
+0.38 C
1940
15.7 C
+1.00 C
1941
15.5 C
+0.81 C
1943
15.1 C
+0.40 C
1944
14.5 C
-0.13 C
1945
14.6 C
-0.02 C
1946
14.1 C
-0.58 C
1947
14.8 C
+0.13 C
1948
14.2 C
-0.42 C
1949
14.1 C
-0.54 C
1950
14.9 C
+0.24 C
1951
14.7 C
+0.07 C
1952
14.7 C
+0.04 C
1953
15.0 C
+0.38 C
1954
15.0 C
+0.31 C
1955
14.6 C
-0.11 C
1956
14.9 C
+0.24 C
1957
15.5 C
+0.88 C
1959
16.0 C
+1.35 C
1961
15.3 C
+0.66 C
1962
14.9 C
+0.21 C
1963
14.7 C
+0.05 C
1964
15.1 C
+0.46 C
1966
15.5 C
+0.86 C
1967
15.6 C
+0.95 C
1968
15.7 C
+1.05 C
1969
15.6 C
+0.92 C
1970
15.9 C
+1.26 C
1971
15.0 C
+0.35 C
1972
15.5 C
+0.85 C
1974
14.6 C
-0.09 C
1975
13.5 C
-1.12 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1904 to 1975. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 67 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Santa Clara UNIV
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.2) per decade
0.3 F (0.2 to 0.4) per decade
1904 to 1975
67
Rise
Mean daily maximum
-0.03 C (-0.10 to 0.04) per decade
-0.1 F (-0.2 to 0.1) per decade
1904 to 1975
67
Not clearly different from zero
Mean daily minimum
0.4 C (0.3 to 0.5) per decade
0.7 F (0.5 to 0.8) per decade
1904 to 1975
67
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
1893 to 1976
Yearly extremes at Santa Clara UNIV: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.9 C (111.0 F)
1905
37.8 C (100.0 F)
77
Coldest night (TNn)
-7.2 C (19.0 F)
1917
-3.3 C (26.1 F)
78
Wettest day (Rx1day)
111.0 mm (4.4 in)
1918
34.3 mm (1.4 in)
77
Wettest five days (Rx5day)
186.4 mm (7.3 in)
1911
64.4 mm (2.5 in)
76
Longest dry spell (CDD)
200 days
1952
117 days
76
Hottest day (TXx)
The hottest day of the year at Santa Clara UNIV, 1893 to 1976. The record is 43.9 C (111.0 F) in 1905, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Santa Clara UNIV by year
Year
Hottest day (TXx)
1893
36.7 C (98.1 F)
1894
35.6 C (96.1 F)
1895
38.3 C (100.9 F)
1902
n/a
1903
41.1 C (106.0 F)
1904
42.8 C (109.0 F)
1905
43.9 C (111.0 F)
1906
37.2 C (99.0 F)
1907
35.0 C (95.0 F)
1908
36.7 C (98.1 F)
1909
38.9 C (102.0 F)
1910
40.0 C (104.0 F)
1911
34.4 C (93.9 F)
1912
39.4 C (102.9 F)
1913
42.2 C (108.0 F)
1914
37.2 C (99.0 F)
1915
37.8 C (100.0 F)
1916
35.6 C (96.1 F)
1917
39.4 C (102.9 F)
1918
35.6 C (96.1 F)
1919
38.3 C (100.9 F)
1920
39.4 C (102.9 F)
1921
39.4 C (102.9 F)
1922
37.2 C (99.0 F)
1923
37.2 C (99.0 F)
1924
37.8 C (100.0 F)
1925
41.7 C (107.1 F)
1926
38.9 C (102.0 F)
1927
38.3 C (100.9 F)
1928
39.4 C (102.9 F)
1929
38.9 C (102.0 F)
1930
35.0 C (95.0 F)
1931
41.7 C (107.1 F)
1932
37.8 C (100.0 F)
1933
36.1 C (97.0 F)
1934
39.4 C (102.9 F)
1935
37.8 C (100.0 F)
1936
37.8 C (100.0 F)
1937
38.9 C (102.0 F)
1938
35.0 C (95.0 F)
1939
38.9 C (102.0 F)
1940
35.6 C (96.1 F)
1941
36.7 C (98.1 F)
1942
37.2 C (99.0 F)
1943
38.3 C (100.9 F)
1944
41.1 C (106.0 F)
1945
37.8 C (100.0 F)
1946
38.9 C (102.0 F)
1947
38.3 C (100.9 F)
1948
38.3 C (100.9 F)
1949
37.8 C (100.0 F)
1950
38.9 C (102.0 F)
1951
36.1 C (97.0 F)
1952
37.8 C (100.0 F)
1953
37.8 C (100.0 F)
1954
37.8 C (100.0 F)
1955
36.7 C (98.1 F)
1956
37.8 C (100.0 F)
1957
38.9 C (102.0 F)
1958
34.4 C (93.9 F)
1959
38.9 C (102.0 F)
1960
42.2 C (108.0 F)
1961
41.1 C (106.0 F)
1962
35.6 C (96.1 F)
1963
36.1 C (97.0 F)
1964
35.6 C (96.1 F)
1965
33.9 C (93.0 F)
1966
37.8 C (100.0 F)
1967
35.6 C (96.1 F)
1968
38.3 C (100.9 F)
1969
34.4 C (93.9 F)
1970
38.9 C (102.0 F)
1971
40.6 C (105.1 F)
1972
42.8 C (109.0 F)
1973
39.4 C (102.9 F)
1974
35.6 C (96.1 F)
1975
36.1 C (97.0 F)
1976
38.9 C (102.0 F)
Coldest night (TNn)
The coldest night of the year at Santa Clara UNIV, 1893 to 1976. The record is -7.2 C (19.0 F) in 1917, marked on the chart; the median year is -3.3 C (26.1 F).
Coldest night (TNn) at Santa Clara UNIV by year
Year
Coldest night (TNn)
1893
3.9 C (39.0 F)
1894
-0.6 C (30.9 F)
1895
-2.2 C (28.0 F)
1902
-6.7 C (19.9 F)
1903
-5.0 C (23.0 F)
1904
-3.3 C (26.1 F)
1905
-3.9 C (25.0 F)
1906
-3.9 C (25.0 F)
1907
-2.2 C (28.0 F)
1908
-4.4 C (24.1 F)
1909
-3.3 C (26.1 F)
1910
-5.0 C (23.0 F)
1911
-3.9 C (25.0 F)
1912
-4.4 C (24.1 F)
1913
-5.0 C (23.0 F)
1914
-2.8 C (27.0 F)
1915
-6.1 C (21.0 F)
1916
-4.4 C (24.1 F)
1917
-7.2 C (19.0 F)
1918
-3.9 C (25.0 F)
1919
-6.7 C (19.9 F)
1920
-3.9 C (25.0 F)
1921
-3.3 C (26.1 F)
1922
-6.1 C (21.0 F)
1923
-3.3 C (26.1 F)
1924
-6.7 C (19.9 F)
1925
-2.8 C (27.0 F)
1926
-6.7 C (19.9 F)
1927
-3.3 C (26.1 F)
1928
-4.4 C (24.1 F)
1929
-5.0 C (23.0 F)
1930
-6.1 C (21.0 F)
1931
-3.9 C (25.0 F)
1932
-6.7 C (19.9 F)
1933
-3.3 C (26.1 F)
1934
-0.6 C (30.9 F)
1935
-2.2 C (28.0 F)
1936
-1.7 C (28.9 F)
1937
-7.2 C (19.0 F)
1938
-2.2 C (28.0 F)
1939
-1.7 C (28.9 F)
1940
-5.0 C (23.0 F)
1941
-1.1 C (30.0 F)
1942
-2.8 C (27.0 F)
1943
-5.0 C (23.0 F)
1944
-1.1 C (30.0 F)
1945
-4.4 C (24.1 F)
1946
-4.4 C (24.1 F)
1947
-4.4 C (24.1 F)
1948
-3.3 C (26.1 F)
1949
-6.7 C (19.9 F)
1950
-4.4 C (24.1 F)
1951
-2.8 C (27.0 F)
1952
-3.3 C (26.1 F)
1953
-1.7 C (28.9 F)
1954
-1.1 C (30.0 F)
1955
-1.7 C (28.9 F)
1956
-2.2 C (28.0 F)
1957
-1.7 C (28.9 F)
1958
0.0 C (32.0 F)
1959
-0.6 C (30.9 F)
1960
-3.3 C (26.1 F)
1961
-2.2 C (28.0 F)
1962
-2.8 C (27.0 F)
1963
-3.9 C (25.0 F)
1964
-0.6 C (30.9 F)
1965
-2.2 C (28.0 F)
1966
-1.1 C (30.0 F)
1967
-0.6 C (30.9 F)
1968
-1.7 C (28.9 F)
1969
0.0 C (32.0 F)
1970
-0.6 C (30.9 F)
1971
-1.1 C (30.0 F)
1972
-5.0 C (23.0 F)
1973
-1.7 C (28.9 F)
1974
-3.3 C (26.1 F)
1975
-3.9 C (25.0 F)
1976
-1.7 C (28.9 F)
Wettest day (Rx1day)
The wettest day of the year at Santa Clara UNIV, 1893 to 1976. The record is 111.0 mm (4.4 in) in 1918, marked on the chart; the median year is 34.3 mm (1.4 in).
Wettest day (Rx1day) at Santa Clara UNIV by year
Year
Wettest day (Rx1day)
1893
13.5 mm (0.5 in)
1894
45.2 mm (1.8 in)
1895
42.9 mm (1.7 in)
1902
n/a
1903
38.1 mm (1.5 in)
1904
54.4 mm (2.1 in)
1905
27.9 mm (1.1 in)
1906
62.5 mm (2.5 in)
1907
54.4 mm (2.1 in)
1908
22.1 mm (0.9 in)
1909
50.3 mm (2.0 in)
1910
17.5 mm (0.7 in)
1911
90.4 mm (3.6 in)
1912
31.8 mm (1.3 in)
1913
24.1 mm (0.9 in)
1914
28.2 mm (1.1 in)
1915
60.5 mm (2.4 in)
1916
57.2 mm (2.3 in)
1917
55.6 mm (2.2 in)
1918
111.0 mm (4.4 in)
1919
42.7 mm (1.7 in)
1920
21.8 mm (0.9 in)
1921
32.3 mm (1.3 in)
1922
37.6 mm (1.5 in)
1923
16.5 mm (0.6 in)
1924
34.5 mm (1.4 in)
1925
25.4 mm (1.0 in)
1926
36.3 mm (1.4 in)
1927
22.6 mm (0.9 in)
1928
27.9 mm (1.1 in)
1929
14.5 mm (0.6 in)
1930
29.7 mm (1.2 in)
1931
28.7 mm (1.1 in)
1932
36.8 mm (1.4 in)
1933
23.4 mm (0.9 in)
1934
26.9 mm (1.1 in)
1935
26.9 mm (1.1 in)
1936
31.2 mm (1.2 in)
1937
69.1 mm (2.7 in)
1938
37.8 mm (1.5 in)
1939
25.9 mm (1.0 in)
1940
45.7 mm (1.8 in)
1941
36.3 mm (1.4 in)
1942
39.1 mm (1.5 in)
1943
57.9 mm (2.3 in)
1944
34.5 mm (1.4 in)
1945
42.7 mm (1.7 in)
1946
22.6 mm (0.9 in)
1947
17.8 mm (0.7 in)
1948
51.6 mm (2.0 in)
1949
22.9 mm (0.9 in)
1950
38.4 mm (1.5 in)
1951
26.2 mm (1.0 in)
1952
56.9 mm (2.2 in)
1953
31.5 mm (1.2 in)
1954
29.5 mm (1.2 in)
1955
83.6 mm (3.3 in)
1956
17.5 mm (0.7 in)
1957
27.7 mm (1.1 in)
1958
33.0 mm (1.3 in)
1959
57.4 mm (2.3 in)
1960
32.5 mm (1.3 in)
1961
49.3 mm (1.9 in)
1962
86.9 mm (3.4 in)
1963
45.2 mm (1.8 in)
1964
54.4 mm (2.1 in)
1965
26.2 mm (1.0 in)
1966
24.1 mm (0.9 in)
1967
45.0 mm (1.8 in)
1968
96.3 mm (3.8 in)
1969
34.3 mm (1.4 in)
1970
53.8 mm (2.1 in)
1971
19.1 mm (0.8 in)
1972
29.2 mm (1.1 in)
1973
34.8 mm (1.4 in)
1974
24.6 mm (1.0 in)
1975
33.3 mm (1.3 in)
1976
21.8 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Santa Clara UNIV, 1893 to 1976. The record is 186.4 mm (7.3 in) in 1911, marked on the chart; the median year is 64.4 mm (2.5 in).
Wettest five days (Rx5day) at Santa Clara UNIV by year
Year
Wettest five days (Rx5day)
1893
4.0 mm (0.16 in)
1894
32.7 mm (1.3 in)
1895
n/a
1902
n/a
1903
85.7 mm (3.4 in)
1904
75.7 mm (3.0 in)
1905
54.6 mm (2.1 in)
1906
105.0 mm (4.1 in)
1907
105.7 mm (4.2 in)
1908
46.0 mm (1.8 in)
1909
97.2 mm (3.8 in)
1910
63.2 mm (2.5 in)
1911
186.4 mm (7.3 in)
1912
50.1 mm (2.0 in)
1913
53.3 mm (2.1 in)
1914
76.2 mm (3.0 in)
1915
95.8 mm (3.8 in)
1916
83.9 mm (3.3 in)
1917
102.9 mm (4.1 in)
1918
157.3 mm (6.2 in)
1919
81.8 mm (3.2 in)
1920
36.3 mm (1.4 in)
1921
84.6 mm (3.3 in)
1922
75.4 mm (3.0 in)
1923
37.6 mm (1.5 in)
1924
45.7 mm (1.8 in)
1925
44.5 mm (1.8 in)
1926
90.8 mm (3.6 in)
1927
56.9 mm (2.2 in)
1928
64.5 mm (2.5 in)
1929
30.8 mm (1.2 in)
1930
48.2 mm (1.9 in)
1931
71.4 mm (2.8 in)
1932
58.0 mm (2.3 in)
1933
55.2 mm (2.2 in)
1934
58.1 mm (2.3 in)
1935
47.8 mm (1.9 in)
1936
49.1 mm (1.9 in)
1937
96.2 mm (3.8 in)
1938
103.6 mm (4.1 in)
1939
47.0 mm (1.9 in)
1940
100.4 mm (4.0 in)
1941
77.4 mm (3.0 in)
1942
92.7 mm (3.6 in)
1943
104.8 mm (4.1 in)
1944
69.2 mm (2.7 in)
1945
68.4 mm (2.7 in)
1946
35.6 mm (1.4 in)
1947
29.5 mm (1.2 in)
1948
62.8 mm (2.5 in)
1949
41.4 mm (1.6 in)
1950
75.2 mm (3.0 in)
1951
63.4 mm (2.5 in)
1952
89.7 mm (3.5 in)
1953
36.9 mm (1.5 in)
1954
51.9 mm (2.0 in)
1955
156.0 mm (6.1 in)
1956
28.2 mm (1.1 in)
1957
49.5 mm (1.9 in)
1958
77.5 mm (3.1 in)
1959
63.4 mm (2.5 in)
1960
49.3 mm (1.9 in)
1961
71.2 mm (2.8 in)
1962
105.7 mm (4.2 in)
1963
83.9 mm (3.3 in)
1964
73.9 mm (2.9 in)
1965
63.2 mm (2.5 in)
1966
62.9 mm (2.5 in)
1967
96.6 mm (3.8 in)
1968
121.8 mm (4.8 in)
1969
68.1 mm (2.7 in)
1970
117.2 mm (4.6 in)
1971
30.3 mm (1.2 in)
1972
97.8 mm (3.9 in)
1973
64.3 mm (2.5 in)
1974
42.6 mm (1.7 in)
1975
52.8 mm (2.1 in)
1976
34.2 mm (1.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Santa Clara UNIV, 1893 to 1976. The record is 200 days in 1952, marked on the chart; the median year is 117 days.
Longest dry spell (CDD) at Santa Clara UNIV by year
Year
Longest dry spell (CDD)
1893
66 days
1894
61 days
1895
n/a
1902
n/a
1903
176 days
1904
113 days
1905
176 days
1906
98 days
1907
81 days
1908
124 days
1909
100 days
1910
182 days
1911
116 days
1912
71 days
1913
55 days
1914
114 days
1915
101 days
1916
162 days
1917
116 days
1918
73 days
1919
168 days
1920
112 days
1921
110 days
1922
134 days
1923
98 days
1924
184 days
1925
93 days
1926
147 days
1927
140 days
1928
164 days
1929
175 days
1930
135 days
1931
131 days
1932
190 days
1933
161 days
1934
109 days
1935
118 days
1936
144 days
1937
107 days
1938
138 days
1939
114 days
1940
123 days
1941
159 days
1942
105 days
1943
172 days
1944
142 days
1945
146 days
1946
112 days
1947
124 days
1948
127 days
1949
100 days
1950
172 days
1951
125 days
1952
200 days
1953
84 days
1954
148 days
1955
188 days
1956
64 days
1957
110 days
1958
90 days
1959
89 days
1960
134 days
1961
107 days
1962
175 days
1963
123 days
1964
75 days
1965
111 days
1966
80 days
1967
121 days
1968
87 days
1969
125 days
1970
189 days
1971
162 days
1972
109 days
1973
98 days
1974
84 days
1975
80 days
1976
46 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
62 years with a frost
Across 62 years with a frost, the median last spring frost at Santa Clara UNIV falls on 1 March and the median first autumn frost on 21 November, which leaves a median of 271 days between them.
In 1936 to 1975 the median growing season was 299 days. That is 62 days more than in 1904 to 1933.
Fitted over all years, the growing season changes by +15.4 days per decade at this station.
Frost dates and growing season at Santa Clara UNIV
Measure
Median, all years
Earliest period (1904 to 1933)
Recent period (1936 to 1975)
Recent against earliest
Fitted trend
Last spring frost
1 March
26 March
16 February
38 days earlier
-9.7 days per decade
First autumn frost
21 November
13 November
8 December
25 days later
+5.7 days per decade
Growing days
271 days
237 days
299 days
62 days more
+15.4 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, 1903 to 1975
A day with at least 34.5 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 119.1 mm (4.7 in) of rain is expected about once in 100 years.
Rainfall return levels at Santa Clara UNIV: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
34.5 mm (1.4 in)
5 years
51.1 mm (2.0 in)
10 years
64.2 mm (2.5 in)
25 years
83.5 mm (3.3 in)
50 years
100.2 mm (3.9 in)
100 years
119.1 mm (4.7 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 1903 to 1975.
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: 111.0 mm (4.4 in) in 1918; 96.3 mm (3.8 in) in 1968; 90.4 mm (3.6 in) in 1911.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Santa Clara UNIV standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Santa Clara UNIV 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.