Record envelope, standing records and threshold days for Calistoga (USC00041312), California, United States, with 121 years of record.
Key Facts for Calistoga
Calistoga (USC00041312) is a weather station in California, United States at 38.58 latitude and -122.58 longitude, 107 m (350 ft) above sea level.
The station reports from 1906 to 2026, 121 years of record.
1,464 records set at Calistoga still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Calistoga set a daily record low maximum temperature of 22.2 C (72.0 F) on 20 June 2026.
About the Station
Location: California, United States, 38.58 latitude, -122.58 longitude.
Elevation: 107 m (350 ft).
Period of record: 1906 to 2026, 121 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
11 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 Calistoga. The lines show the 2026 daily maximum and minimum. 11 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Calistoga, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
28.9 C (84.0 F)
-8.3 C (17.1 F)
26.1 C (79.0 F)
0.0 C (32.0 F)
Feb
31.1 C (88.0 F)
-8.3 C (17.1 F)
27.8 C (82.0 F)
-1.7 C (28.9 F)
Mar
34.4 C (93.9 F)
-7.2 C (19.0 F)
34.4 C (93.9 F)
4.4 C (39.9 F)
Apr
38.9 C (102.0 F)
-6.7 C (19.9 F)
30.0 C (86.0 F)
4.4 C (39.9 F)
May
40.0 C (104.0 F)
-7.8 C (18.0 F)
33.3 C (91.9 F)
7.8 C (46.0 F)
Jun
42.2 C (108.0 F)
0.0 C (32.0 F)
40.6 C (105.1 F)
8.9 C (48.0 F)
Jul
45.6 C (114.1 F)
0.0 C (32.0 F)
38.9 C (102.0 F)
10.6 C (51.1 F)
Aug
43.9 C (111.0 F)
3.3 C (37.9 F)
40.0 C (104.0 F)
9.4 C (48.9 F)
Sep
47.8 C (118.0 F)
0.0 C (32.0 F)
31.7 C (89.1 F)
9.4 C (48.9 F)
Oct
41.1 C (106.0 F)
-2.8 C (27.0 F)
36.7 C (98.1 F)
10.0 C (50.0 F)
Nov
35.6 C (96.1 F)
-6.1 C (21.0 F)
n/a
n/a
Dec
30.6 C (87.1 F)
-12.2 C (10.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Calistoga still stand. 1917 holds the most, with 93.
Standing records at Calistoga by the year they were set
Year set
Standing records
1916
4
1917
93
1918
18
1931
57
1932
70
1933
32
1934
1
1966
1
1979
3
1981
25
1982
41
1983
43
1984
34
1985
29
1986
27
1987
36
1988
29
1989
23
1990
34
1991
26
1992
13
1993
25
1994
15
1995
32
1996
31
1997
23
1998
24
1999
18
2000
26
2001
18
2002
33
2003
29
2004
27
2005
21
2006
28
2007
22
2008
32
2009
15
2010
34
2011
32
2012
23
2013
36
2014
46
2015
23
2016
20
2017
21
2018
11
2019
17
2020
27
2021
14
2022
23
2023
24
2024
18
2025
20
2026
17
All-Time Record Progression
1 new records
1 all-time records were set at Calistoga between 7 September 2022 and 7 September 2022. Each dot is a new record.
When Calistoga set new all-time records
Date
Kind
Detail
2022-09-07
Record high maximum temperature
Record high maximum temperature 47.8 C (118.0 F)
Wettest Day of Each Month
Dec: 232.2 mm (9.1 in)
The wettest day on record for each calendar month at Calistoga. The most was 232.2 mm (9.1 in) on 31 December 1913.
Record daily precipitation for each month at Calistoga
Month
Record daily precipitation (mm)
Date
Jan
148.1 mm (5.8 in)
21 January 1967
Feb
205.7 mm (8.1 in)
17 February 1986
Mar
143.0 mm (5.6 in)
9 March 1995
Apr
67.3 mm (2.6 in)
5 April 1911
May
58.4 mm (2.3 in)
10 May 2005
Jun
50.5 mm (2.0 in)
2 June 1967
Jul
48.5 mm (1.9 in)
8 July 1974
Aug
41.4 mm (1.6 in)
28 August 1954
Sep
75.9 mm (3.0 in)
18 September 1959
Oct
145.0 mm (5.7 in)
12 October 1962
Nov
130.6 mm (5.1 in)
21 November 1977
Dec
232.2 mm (9.1 in)
31 December 1913
Period of Record Coverage
1916 to 2026
Complete yearUnder 90 percent of days
57 years of record at Calistoga, 1916 to 2026. 31 years have data for under 90 percent of days and are left out of rankings: 1916, 1918, 1931, 1932, 1933, 1934, 1963, 1966 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 32 complete years at Calistoga, 1932 to 2025. Blue stripes are years cooler than the station's own mean of 15.6 C (60.1 F); red stripes are warmer. The coolest year was 1982, at 14.1 C (57.4 F), and the warmest was 1988, at 16.7 C (62.0 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Calistoga as warming stripes, 1932 to 2025
Year
Annual mean temperature
Difference from the station mean
1932
15.8 C
+0.11 C
1982
14.1 C
-1.53 C
1983
15.1 C
-0.51 C
1984
15.4 C
-0.27 C
1985
15.5 C
-0.18 C
1986
16.4 C
+0.71 C
1987
16.0 C
+0.34 C
1988
16.7 C
+1.03 C
1990
15.7 C
+0.09 C
1991
15.8 C
+0.13 C
1992
16.4 C
+0.77 C
1993
15.6 C
-0.08 C
1994
15.2 C
-0.47 C
1996
16.0 C
+0.36 C
1997
16.4 C
+0.74 C
2003
15.3 C
-0.35 C
2004
15.6 C
-0.01 C
2005
15.3 C
-0.35 C
2006
15.3 C
-0.39 C
2007
15.2 C
-0.40 C
2008
15.2 C
-0.48 C
2011
14.6 C
-1.04 C
2012
14.9 C
-0.70 C
2013
15.2 C
-0.45 C
2014
16.6 C
+0.95 C
2015
16.4 C
+0.72 C
2016
16.0 C
+0.32 C
2020
16.1 C
+0.47 C
2022
16.0 C
+0.39 C
2023
15.1 C
-0.52 C
2024
16.1 C
+0.44 C
2025
15.7 C
+0.06 C
The fitted trend in annual mean temperature here over 1932 to 2025 is 0.01 C (-0.11 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.02 F (-0.20 to 0.23) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Calistoga
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.01 C (-0.11 to 0.13) per decade
0.02 F (-0.20 to 0.23) per decade
1932 to 2025
32
Not clearly different from zero
Mean daily maximum
-0.17 C (-0.34 to 0.00) per decade
-0.31 F (-0.61 to -0.01) per decade
1932 to 2025
32
Fall
Mean daily minimum
0.19 C (0.01 to 0.37) per decade
0.35 F (0.02 to 0.67) per decade
1932 to 2025
32
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
1906 to 2026
Yearly extremes at Calistoga: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
47.8 C (118.0 F)
2022
40.6 C (105.1 F)
57
Coldest night (TNn)
-12.2 C (10.0 F)
1932
-4.4 C (24.1 F)
56
Wettest day (Rx1day)
232.2 mm (9.1 in)
1913
78.0 mm (3.1 in)
101
Wettest five days (Rx5day)
563.8 mm (22.2 in)
1986
159.2 mm (6.3 in)
101
Longest dry spell (CDD)
174 days
1987
100 days
101
Hottest day (TXx)
The hottest day of the year at Calistoga, 1906 to 2026. The record is 47.8 C (118.0 F) in 2022, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Calistoga by year
Year
Hottest day (TXx)
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
18.9 C (66.0 F)
1917
42.2 C (108.0 F)
1918
29.4 C (84.9 F)
1931
45.6 C (114.1 F)
1932
43.9 C (111.0 F)
1933
42.8 C (109.0 F)
1934
27.8 C (82.0 F)
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
40.0 C (104.0 F)
1964
n/a
1965
n/a
1966
19.4 C (66.9 F)
1967
n/a
1968
19.4 C (66.9 F)
1969
n/a
1970
n/a
1971
n/a
1972
n/a
1973
n/a
1974
n/a
1975
n/a
1976
n/a
1977
n/a
1978
n/a
1979
36.1 C (97.0 F)
1980
n/a
1981
41.7 C (107.1 F)
1982
39.4 C (102.9 F)
1983
41.1 C (106.0 F)
1984
41.7 C (107.1 F)
1985
40.6 C (105.1 F)
1986
38.9 C (102.0 F)
1987
40.0 C (104.0 F)
1988
43.3 C (109.9 F)
1989
40.6 C (105.1 F)
1990
41.1 C (106.0 F)
1991
42.2 C (108.0 F)
1992
40.0 C (104.0 F)
1993
42.2 C (108.0 F)
1994
40.0 C (104.0 F)
1995
41.7 C (107.1 F)
1996
42.2 C (108.0 F)
1997
41.1 C (106.0 F)
1998
42.8 C (109.0 F)
1999
41.1 C (106.0 F)
2000
40.6 C (105.1 F)
2001
42.2 C (108.0 F)
2002
41.7 C (107.1 F)
2003
40.0 C (104.0 F)
2004
38.9 C (102.0 F)
2005
38.9 C (102.0 F)
2006
43.9 C (111.0 F)
2007
40.0 C (104.0 F)
2008
41.7 C (107.1 F)
2009
40.6 C (105.1 F)
2010
41.7 C (107.1 F)
2011
37.2 C (99.0 F)
2012
40.6 C (105.1 F)
2013
41.7 C (107.1 F)
2014
40.6 C (105.1 F)
2015
42.2 C (108.0 F)
2016
39.4 C (102.9 F)
2017
44.4 C (111.9 F)
2018
39.4 C (102.9 F)
2019
39.4 C (102.9 F)
2020
44.4 C (111.9 F)
2021
42.8 C (109.0 F)
2022
47.8 C (118.0 F)
2023
40.0 C (104.0 F)
2024
42.8 C (109.0 F)
2025
39.4 C (102.9 F)
2026
40.6 C (105.1 F)
Coldest night (TNn)
The coldest night of the year at Calistoga, 1906 to 2026. The record is -12.2 C (10.0 F) in 1932, marked on the chart; the median year is -4.4 C (24.1 F).
Coldest night (TNn) at Calistoga by year
Year
Coldest night (TNn)
1906
n/a
1907
n/a
1908
n/a
1909
n/a
1910
n/a
1911
n/a
1912
n/a
1913
n/a
1914
n/a
1915
n/a
1916
-5.6 C (21.9 F)
1917
-7.2 C (19.0 F)
1918
-3.9 C (25.0 F)
1931
-5.6 C (21.9 F)
1932
-12.2 C (10.0 F)
1933
-6.7 C (19.9 F)
1934
n/a
1943
n/a
1944
n/a
1945
n/a
1946
n/a
1947
n/a
1948
n/a
1949
n/a
1950
n/a
1951
n/a
1952
n/a
1953
n/a
1954
n/a
1955
n/a
1956
n/a
1957
n/a
1958
n/a
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1963
4.4 C (39.9 F)
1964
n/a
1965
n/a
1966
-3.9 C (25.0 F)
1967
n/a
1968
4.4 C (39.9 F)
1969
n/a
1970
n/a
1971
n/a
1972
n/a
1973
n/a
1974
n/a
1975
n/a
1976
n/a
1977
n/a
1978
n/a
1979
2.2 C (36.0 F)
1980
n/a
1981
-1.7 C (28.9 F)
1982
-6.1 C (21.0 F)
1983
-3.9 C (25.0 F)
1984
-3.3 C (26.1 F)
1985
-5.6 C (21.9 F)
1986
-3.9 C (25.0 F)
1987
-3.9 C (25.0 F)
1988
-5.6 C (21.9 F)
1989
-5.0 C (23.0 F)
1990
-11.1 C (12.0 F)
1991
-7.2 C (19.0 F)
1992
-3.9 C (25.0 F)
1993
-5.6 C (21.9 F)
1994
-7.8 C (18.0 F)
1995
-2.2 C (28.0 F)
1996
-2.8 C (27.0 F)
1997
-3.3 C (26.1 F)
1998
-6.1 C (21.0 F)
1999
-8.3 C (17.1 F)
2000
-6.1 C (21.0 F)
2001
-6.7 C (19.9 F)
2002
-5.0 C (23.0 F)
2003
-4.4 C (24.1 F)
2004
-4.4 C (24.1 F)
2005
-3.9 C (25.0 F)
2006
-5.0 C (23.0 F)
2007
-7.8 C (18.0 F)
2008
-5.6 C (21.9 F)
2009
-4.4 C (24.1 F)
2010
-7.8 C (18.0 F)
2011
-5.6 C (21.9 F)
2012
-8.3 C (17.1 F)
2013
-7.8 C (18.0 F)
2014
-3.9 C (25.0 F)
2015
-3.9 C (25.0 F)
2016
-5.6 C (21.9 F)
2017
-0.6 C (30.9 F)
2018
0.6 C (33.1 F)
2019
-2.8 C (27.0 F)
2020
-1.7 C (28.9 F)
2021
-3.3 C (26.1 F)
2022
-4.4 C (24.1 F)
2023
-2.2 C (28.0 F)
2024
-2.2 C (28.0 F)
2025
-2.8 C (27.0 F)
2026
-1.7 C (28.9 F)
Wettest day (Rx1day)
The wettest day of the year at Calistoga, 1906 to 2026. The record is 232.2 mm (9.1 in) in 1913, marked on the chart; the median year is 78.0 mm (3.1 in).
Wettest day (Rx1day) at Calistoga by year
Year
Wettest day (Rx1day)
1906
82.6 mm (3.3 in)
1907
142.2 mm (5.6 in)
1908
41.9 mm (1.6 in)
1909
94.5 mm (3.7 in)
1910
51.8 mm (2.0 in)
1911
102.4 mm (4.0 in)
1912
61.0 mm (2.4 in)
1913
232.2 mm (9.1 in)
1914
74.4 mm (2.9 in)
1915
106.7 mm (4.2 in)
1916
124.5 mm (4.9 in)
1917
77.5 mm (3.1 in)
1918
79.0 mm (3.1 in)
1931
134.9 mm (5.3 in)
1932
38.1 mm (1.5 in)
1933
71.1 mm (2.8 in)
1934
54.9 mm (2.2 in)
1943
32.3 mm (1.3 in)
1944
83.8 mm (3.3 in)
1945
94.0 mm (3.7 in)
1946
69.3 mm (2.7 in)
1947
76.7 mm (3.0 in)
1948
65.8 mm (2.6 in)
1949
48.3 mm (1.9 in)
1950
69.1 mm (2.7 in)
1951
41.9 mm (1.6 in)
1952
53.3 mm (2.1 in)
1953
72.1 mm (2.8 in)
1954
70.4 mm (2.8 in)
1955
99.3 mm (3.9 in)
1956
76.7 mm (3.0 in)
1957
58.4 mm (2.3 in)
1958
82.8 mm (3.3 in)
1959
75.9 mm (3.0 in)
1960
149.9 mm (5.9 in)
1961
43.2 mm (1.7 in)
1962
145.0 mm (5.7 in)
1963
130.8 mm (5.1 in)
1964
115.3 mm (4.5 in)
1965
85.1 mm (3.4 in)
1966
71.1 mm (2.8 in)
1967
148.1 mm (5.8 in)
1968
121.9 mm (4.8 in)
1969
78.0 mm (3.1 in)
1970
105.4 mm (4.1 in)
1971
50.8 mm (2.0 in)
1972
48.5 mm (1.9 in)
1973
76.7 mm (3.0 in)
1974
53.3 mm (2.1 in)
1975
86.4 mm (3.4 in)
1976
33.5 mm (1.3 in)
1977
130.6 mm (5.1 in)
1978
85.1 mm (3.4 in)
1979
104.9 mm (4.1 in)
1980
140.0 mm (5.5 in)
1981
116.8 mm (4.6 in)
1982
102.9 mm (4.1 in)
1983
90.9 mm (3.6 in)
1984
39.4 mm (1.6 in)
1985
104.1 mm (4.1 in)
1986
205.7 mm (8.1 in)
1987
61.5 mm (2.4 in)
1988
61.0 mm (2.4 in)
1989
62.5 mm (2.5 in)
1990
60.5 mm (2.4 in)
1991
113.3 mm (4.5 in)
1992
63.0 mm (2.5 in)
1993
114.8 mm (4.5 in)
1994
48.3 mm (1.9 in)
1995
149.9 mm (5.9 in)
1996
93.0 mm (3.7 in)
1997
106.7 mm (4.2 in)
1998
103.4 mm (4.1 in)
1999
110.0 mm (4.3 in)
2000
104.1 mm (4.1 in)
2001
68.6 mm (2.7 in)
2002
112.0 mm (4.4 in)
2003
128.5 mm (5.1 in)
2004
79.2 mm (3.1 in)
2005
63.5 mm (2.5 in)
2006
50.8 mm (2.0 in)
2007
44.5 mm (1.8 in)
2008
81.3 mm (3.2 in)
2009
77.7 mm (3.1 in)
2010
76.2 mm (3.0 in)
2011
50.8 mm (2.0 in)
2012
102.9 mm (4.1 in)
2013
22.6 mm (0.9 in)
2014
137.7 mm (5.4 in)
2015
75.4 mm (3.0 in)
2016
80.8 mm (3.2 in)
2017
109.7 mm (4.3 in)
2018
29.2 mm (1.1 in)
2019
51.1 mm (2.0 in)
2020
28.4 mm (1.1 in)
2021
126.0 mm (5.0 in)
2022
121.4 mm (4.8 in)
2023
78.7 mm (3.1 in)
2024
47.8 mm (1.9 in)
2025
57.4 mm (2.3 in)
2026
34.3 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Calistoga, 1906 to 2026. The record is 563.8 mm (22.2 in) in 1986, marked on the chart; the median year is 159.2 mm (6.3 in).
Wettest five days (Rx5day) at Calistoga by year
Year
Wettest five days (Rx5day)
1906
135.9 mm (5.4 in)
1907
370.9 mm (14.6 in)
1908
97.5 mm (3.8 in)
1909
303.6 mm (12.0 in)
1910
93.8 mm (3.7 in)
1911
235.5 mm (9.3 in)
1912
108.6 mm (4.3 in)
1913
251.3 mm (9.9 in)
1914
379.1 mm (14.9 in)
1915
171.9 mm (6.8 in)
1916
165.4 mm (6.5 in)
1917
160.8 mm (6.3 in)
1918
101.6 mm (4.0 in)
1931
308.4 mm (12.1 in)
1932
111.1 mm (4.4 in)
1933
154.5 mm (6.1 in)
1934
159.0 mm (6.3 in)
1943
40.2 mm (1.6 in)
1944
135.2 mm (5.3 in)
1945
202.3 mm (8.0 in)
1946
150.2 mm (5.9 in)
1947
112.3 mm (4.4 in)
1948
84.6 mm (3.3 in)
1949
108.2 mm (4.3 in)
1950
132.4 mm (5.2 in)
1951
80.3 mm (3.2 in)
1952
127.1 mm (5.0 in)
1953
132.9 mm (5.2 in)
1954
103.6 mm (4.1 in)
1955
283.1 mm (11.1 in)
1956
231.7 mm (9.1 in)
1957
97.3 mm (3.8 in)
1958
158.8 mm (6.3 in)
1959
170.4 mm (6.7 in)
1960
228.9 mm (9.0 in)
1961
128.3 mm (5.1 in)
1962
352.3 mm (13.9 in)
1963
279.1 mm (11.0 in)
1964
289.2 mm (11.4 in)
1965
180.6 mm (7.1 in)
1966
170.2 mm (6.7 in)
1967
268.2 mm (10.6 in)
1968
177.3 mm (7.0 in)
1969
196.5 mm (7.7 in)
1970
242.6 mm (9.6 in)
1971
95.9 mm (3.8 in)
1972
119.6 mm (4.7 in)
1973
201.1 mm (7.9 in)
1974
159.2 mm (6.3 in)
1975
146.5 mm (5.8 in)
1976
64.7 mm (2.5 in)
1977
170.8 mm (6.7 in)
1978
200.1 mm (7.9 in)
1979
180.1 mm (7.1 in)
1980
195.1 mm (7.7 in)
1981
194.1 mm (7.6 in)
1982
206.0 mm (8.1 in)
1983
189.0 mm (7.4 in)
1984
110.1 mm (4.3 in)
1985
132.3 mm (5.2 in)
1986
563.8 mm (22.2 in)
1987
126.1 mm (5.0 in)
1988
115.9 mm (4.6 in)
1989
134.1 mm (5.3 in)
1990
94.0 mm (3.7 in)
1991
295.2 mm (11.6 in)
1992
210.8 mm (8.3 in)
1993
202.9 mm (8.0 in)
1994
90.9 mm (3.6 in)
1995
383.5 mm (15.1 in)
1996
155.3 mm (6.1 in)
1997
270.6 mm (10.7 in)
1998
181.5 mm (7.1 in)
1999
178.8 mm (7.0 in)
2000
157.4 mm (6.2 in)
2001
169.5 mm (6.7 in)
2002
279.7 mm (11.0 in)
2003
150.6 mm (5.9 in)
2004
207.5 mm (8.2 in)
2005
176.8 mm (7.0 in)
2006
192.3 mm (7.6 in)
2007
126.0 mm (5.0 in)
2008
134.4 mm (5.3 in)
2009
116.4 mm (4.6 in)
2010
208.7 mm (8.2 in)
2011
149.4 mm (5.9 in)
2012
250.9 mm (9.9 in)
2013
35.9 mm (1.4 in)
2014
209.9 mm (8.3 in)
2015
119.3 mm (4.7 in)
2016
144.5 mm (5.7 in)
2017
197.8 mm (7.8 in)
2018
53.4 mm (2.1 in)
2019
125.0 mm (4.9 in)
2020
47.7 mm (1.9 in)
2021
267.3 mm (10.5 in)
2022
121.4 mm (4.8 in)
2023
184.9 mm (7.3 in)
2024
58.8 mm (2.3 in)
2025
83.1 mm (3.3 in)
2026
48.8 mm (1.9 in)
Longest dry spell (CDD)
The longest dry spell of the year at Calistoga, 1906 to 2026. The record is 174 days in 1987, marked on the chart; the median year is 100 days.
Longest dry spell (CDD) at Calistoga by year
Year
Longest dry spell (CDD)
1906
100 days
1907
37 days
1908
72 days
1909
24 days
1910
82 days
1911
123 days
1912
70 days
1913
134 days
1914
32 days
1915
22 days
1916
3 days
1917
22 days
1918
52 days
1931
126 days
1932
143 days
1933
105 days
1934
30 days
1943
91 days
1944
50 days
1945
68 days
1946
60 days
1947
120 days
1948
118 days
1949
142 days
1950
115 days
1951
139 days
1952
110 days
1953
83 days
1954
77 days
1955
135 days
1956
90 days
1957
108 days
1958
80 days
1959
138 days
1960
133 days
1961
70 days
1962
91 days
1963
150 days
1964
139 days
1965
80 days
1966
83 days
1967
106 days
1968
85 days
1969
120 days
1970
131 days
1971
120 days
1972
67 days
1973
118 days
1974
90 days
1975
82 days
1976
65 days
1977
112 days
1978
116 days
1979
139 days
1980
90 days
1981
128 days
1982
77 days
1983
105 days
1984
84 days
1985
89 days
1986
133 days
1987
174 days
1988
128 days
1989
78 days
1990
113 days
1991
70 days
1992
93 days
1993
129 days
1994
136 days
1995
106 days
1996
106 days
1997
76 days
1998
102 days
1999
142 days
2000
62 days
2001
88 days
2002
102 days
2003
96 days
2004
64 days
2005
74 days
2006
34 days
2007
74 days
2008
131 days
2009
116 days
2010
59 days
2011
92 days
2012
117 days
2013
96 days
2014
101 days
2015
68 days
2016
134 days
2017
135 days
2018
31 days
2019
119 days
2020
134 days
2021
111 days
2022
56 days
2023
105 days
2024
110 days
2025
119 days
2026
95 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
32 years with a frost
Across 32 years with a frost, the median last spring frost at Calistoga falls on 23 March and the median first autumn frost on 13 November, which leaves a median of 236 days between them.
Fitted over all years, the growing season changes by +6.2 days per decade at this station.
Frost dates and growing season at Calistoga
Measure
Median, all years
Earliest period
Recent period (1983 to 2025)
Recent against earliest
Fitted trend
Last spring frost
23 March
n/a
23 March
n/a
-2.2 days per decade
First autumn frost
13 November
n/a
15 November
n/a
+4.1 days per decade
Growing days
236 days
n/a
236 days
n/a
+6.2 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
78 years, 1908 to 2025
A day with at least 78.2 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 211.4 mm (8.3 in) of rain is expected about once in 100 years.
Rainfall return levels at Calistoga: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
78.2 mm (3.1 in)
5 years
112.1 mm (4.4 in)
10 years
135.2 mm (5.3 in)
25 years
165.2 mm (6.5 in)
50 years
188.1 mm (7.4 in)
100 years
211.4 mm (8.3 in)
Longer than the 78 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, 78 years of values from 1908 to 2025.
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: 232.2 mm (9.1 in) in 1913; 205.7 mm (8.1 in) in 1986; 149.9 mm (5.9 in) in 1960.
Download the Data
Data for Calistoga standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Calistoga 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.