Cloverdale Weather Records (USC00041837)

Record envelope, standing records and threshold days for Cloverdale (USC00041837), California, United States, with 63 years of record.

Key Facts for Cloverdale

Cloverdale (USC00041837) is a weather station in California, United States at 38.82 latitude and -123.02 longitude, 104 m (341 ft) above sea level.
The station reports from 1893 to 1955, 63 years of record.
1,464 records set at Cloverdale still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Cloverdale tied a daily record low maximum temperature of 16.1 C (61.0 F) on 19 October 1955.

About the Station

Location: California, United States, 38.82 latitude, -123.02 longitude.
Elevation: 104 m (341 ft).
Period of record: 1893 to 1955, 63 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Cloverdale. 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 Cloverdale, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	27.2 C (81.0 F)	-8.3 C (17.1 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-5.0 C (23.0 F)	n/a	n/a
Mar	35.0 C (95.0 F)	-4.4 C (24.1 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-1.7 C (28.9 F)	n/a	n/a
May	41.7 C (107.1 F)	-1.1 C (30.0 F)	n/a	n/a
Jun	43.9 C (111.0 F)	3.3 C (37.9 F)	n/a	n/a
Jul	46.1 C (115.0 F)	4.4 C (39.9 F)	n/a	n/a
Aug	43.9 C (111.0 F)	2.8 C (37.0 F)	n/a	n/a
Sep	45.0 C (113.0 F)	-1.7 C (28.9 F)	n/a	n/a
Oct	40.0 C (104.0 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	32.8 C (91.0 F)	-3.9 C (25.0 F)	n/a	n/a
Dec	26.1 C (79.0 F)	-7.2 C (19.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Cloverdale still stand. 1912 holds the most, with 62.

Standing records at Cloverdale by the year they were set
Year set	Standing records
1895	4
1902	27
1903	39
1904	40
1905	35
1906	27
1907	20
1908	32
1909	40
1910	37
1911	33
1912	62
1913	30
1914	20
1915	17
1916	41
1917	37
1918	26
1919	32
1920	55
1921	36
1922	16
1923	24
1924	45
1925	29
1926	35
1927	21
1928	20
1929	32
1930	22
1931	18
1932	59
1933	34
1934	27
1935	23
1936	28
1937	23
1938	10
1939	22
1940	14
1941	13
1942	11
1943	25
1944	21
1945	14
1946	7
1947	24
1948	20
1949	22
1950	21
1951	17
1952	24
1953	23
1954	17
1955	13

All-Time Record Progression

2 new records

2 all-time records were set at Cloverdale between 11 December 1932 and 10 January 1949. Each dot is a new record.

When Cloverdale set new all-time records
Date	Kind	Detail
1932-12-11	Record low minimum temperature	Record low minimum temperature -7.2 C (19.0 F)
1949-01-10	Record low minimum temperature	Record low minimum temperature -8.3 C (17.1 F)

Wettest Day of Each Month

Nov: 220.2 mm (8.7 in)

The wettest day on record for each calendar month at Cloverdale. The most was 220.2 mm (8.7 in) on 18 November 1920.

Record daily precipitation for each month at Cloverdale
Month	Record daily precipitation (mm)	Date
Jan	147.3 mm (5.8 in)	4 January 1895
Feb	138.4 mm (5.4 in)	4 February 1937
Mar	101.1 mm (4.0 in)	10 March 1904
Apr	91.7 mm (3.6 in)	7 April 1893
May	48.8 mm (1.9 in)	7 May 1905
Jun	33.8 mm (1.3 in)	16 June 1937
Jul	10.4 mm (0.4 in)	1 July 1916
Aug	30.5 mm (1.2 in)	28 August 1954
Sep	46.2 mm (1.8 in)	6 September 1912
Oct	139.7 mm (5.5 in)	29 October 1945
Nov	220.2 mm (8.7 in)	18 November 1920
Dec	144.8 mm (5.7 in)	10 December 1937

Period of Record Coverage

1894 to 1955

56 years of record at Cloverdale, 1894 to 1955. 9 years have data for under 90 percent of days and are left out of rankings: 1894, 1895, 1902, 1910, 1947, 1948, 1949, 1950 and others.

Days with data per year at Cloverdale
Year	Days with data	Share of year	Complete
1894	1	0%	No
1895	1	0%	No
1902	249	68%	No
1903	356	98%	Yes
1904	355	97%	Yes
1905	363	99%	Yes
1906	334	92%	Yes
1907	364	100%	Yes
1908	361	99%	Yes
1909	360	99%	Yes
1910	311	85%	No
1911	338	93%	Yes
1912	355	97%	Yes
1913	364	100%	Yes
1914	355	97%	Yes
1915	355	97%	Yes
1916	364	99%	Yes
1917	357	98%	Yes
1918	365	100%	Yes
1919	365	100%	Yes
1920	364	99%	Yes
1921	364	100%	Yes
1922	365	100%	Yes
1923	365	100%	Yes
1924	365	100%	Yes
1925	363	99%	Yes
1926	365	100%	Yes
1927	363	99%	Yes
1928	364	99%	Yes
1929	355	97%	Yes
1930	349	96%	Yes
1931	342	94%	Yes
1932	331	90%	Yes
1933	364	100%	Yes
1934	362	99%	Yes
1935	365	100%	Yes
1936	354	97%	Yes
1937	360	99%	Yes
1938	364	100%	Yes
1939	364	100%	Yes
1940	365	100%	Yes
1941	363	99%	Yes
1942	363	99%	Yes
1943	331	91%	Yes
1944	364	99%	Yes
1945	358	98%	Yes
1946	364	100%	Yes
1947	327	90%	No
1948	257	70%	No
1949	186	51%	No
1950	268	73%	No
1951	352	96%	Yes
1952	366	100%	Yes
1953	364	100%	Yes
1954	364	100%	Yes
1955	302	83%	No

Latest Records

Latest records at Cloverdale
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 October 1955	Cloverdale, US	daily low max (Tie)	16.1 C (61.0 F)	tie	34 years	4 of 100 (Routine)
14 September 1955	Cloverdale, US	daily rain	9.7 mm (0.38 in)	4.9 mm (0.19 in)	20 years	16 of 100 (Routine)
4 September 1955	Cloverdale, US	daily high max	41.7 C (107.1 F)	1.1 C (2.0 F)	1 year	8 of 100 (Routine)
3 September 1955	Cloverdale, US	daily high max	42.2 C (108.0 F)	2.8 C (5.0 F)	50 years	26 of 100 (Routine)
2 September 1955	Cloverdale, US	daily high min	18.9 C (66.0 F)	3.9 C (7.0 F)	8 years	20 of 100 (Routine)
26 August 1955	Cloverdale, US	daily low min	6.1 C (43.0 F)	0.6 C (1.1 F)	46 years	22 of 100 (Routine)
15 August 1955	Cloverdale, US	daily low min	6.7 C (44.1 F)	0.5 C (0.9 F)	32 years	16 of 100 (Routine)
5 August 1955	Cloverdale, US	daily low min (Tie)	7.2 C (45.0 F)	tie	32 years	3 of 100 (Routine)
21 June 1955	Cloverdale, US	daily low min (Tie)	7.2 C (45.0 F)	tie	46 years	5 of 100 (Routine)
19 May 1955	Cloverdale, US	daily high min	16.7 C (62.1 F)	0.6 C (1.1 F)	8 years	10 of 100 (Routine)
11 May 1955	Cloverdale, US	daily high max (Tie)	32.2 C (90.0 F)	tie	52 years	5 of 100 (Routine)
26 April 1955	Cloverdale, US	daily low max (Tie)	12.2 C (54.0 F)	tie	44 years	4 of 100 (Routine)
25 April 1955	Cloverdale, US	daily rain	22.6 mm (0.9 in)	9.9 mm (0.39 in)	58 years	20 of 100 (Routine)
25 April 1955	Cloverdale, US	daily low max	12.8 C (55.0 F)	1.1 C (2.0 F)	42 years	20 of 100 (Routine)
21 April 1955	Cloverdale, US	daily rain	46.0 mm (1.8 in)	40.9 mm (1.6 in)	25 years	45 of 100 (Notable)
20 April 1955	Cloverdale, US	daily rain	42.2 mm (1.7 in)	37.9 mm (1.5 in)	29 years	43 of 100 (Notable)
20 April 1955	Cloverdale, US	daily low max	11.1 C (52.0 F)	3.9 C (7.0 F)	42 years	25 of 100 (Routine)
19 April 1955	Cloverdale, US	daily low max (Tie)	12.2 C (54.0 F)	tie	42 years	4 of 100 (Routine)
17 March 1955	Cloverdale, US	daily low min	-1.7 C (28.9 F)	1.7 C (3.1 F)	0 years	11 of 100 (Routine)
16 March 1955	Cloverdale, US	daily low min	-0.6 C (30.9 F)	1.2 C (2.2 F)	42 years	21 of 100 (Routine)

Climate Trend

41 complete years, 1903 to 1954

One stripe for each of 41 complete years at Cloverdale, 1903 to 1954. Blue stripes are years cooler than the station's own mean of 15.4 C (59.7 F); red stripes are warmer. The coolest year was 1912, at 13.6 C (56.5 F), and the warmest was 1934, at 16.9 C (62.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Cloverdale as warming stripes, 1903 to 1954
Year	Annual mean temperature	Difference from the station mean
1903	15.5 C	+0.12 C
1904	15.6 C	+0.16 C
1905	15.6 C	+0.22 C
1907	15.0 C	-0.43 C
1908	14.9 C	-0.51 C
1909	14.9 C	-0.54 C
1912	13.6 C	-1.80 C
1913	15.4 C	+0.01 C
1914	15.0 C	-0.36 C
1915	15.2 C	-0.16 C
1916	14.7 C	-0.74 C
1917	15.3 C	-0.11 C
1918	15.0 C	-0.43 C
1919	14.4 C	-1.01 C
1920	14.0 C	-1.44 C
1921	15.0 C	-0.43 C
1922	15.2 C	-0.22 C
1923	15.6 C	+0.17 C
1924	14.9 C	-0.49 C
1925	15.0 C	-0.44 C
1927	15.6 C	+0.24 C
1928	15.9 C	+0.48 C
1929	14.9 C	-0.51 C
1930	15.7 C	+0.25 C
1933	15.5 C	+0.11 C
1934	16.9 C	+1.48 C
1935	15.3 C	-0.12 C
1936	16.7 C	+1.32 C
1938	15.6 C	+0.17 C
1939	16.4 C	+1.03 C
1940	16.3 C	+0.94 C
1941	16.0 C	+0.64 C
1942	15.9 C	+0.49 C
1944	15.9 C	+0.53 C
1945	15.8 C	+0.40 C
1946	15.2 C	-0.18 C
1947	16.2 C	+0.82 C
1951	15.4 C	+0.01 C
1952	15.2 C	-0.17 C
1953	15.8 C	+0.43 C
1954	15.3 C	-0.12 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1903 to 1954. In Fahrenheit: 0.4 F (0.1 to 0.6) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Cloverdale
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.4 F (0.1 to 0.6) per decade	1903 to 1954	41	Rise
Mean daily maximum	0.3 C (0.1 to 0.6) per decade	0.6 F (0.2 to 1.0) per decade	1903 to 1954	41	Rise
Mean daily minimum	0.08 C (-0.02 to 0.18) per decade	0.14 F (-0.04 to 0.32) per decade	1903 to 1954	41	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

1893 to 1955

Yearly extremes at Cloverdale: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.1 C (115.0 F)	1905	42.2 C (108.0 F)	56
Coldest night (TNn)	-8.3 C (17.1 F)	1949	-3.9 C (25.0 F)	55
Wettest day (Rx1day)	220.2 mm (8.7 in)	1920	71.5 mm (2.8 in)	58
Wettest five days (Rx5day)	286.7 mm (11.3 in)	1896	168.0 mm (6.6 in)	58
Longest dry spell (CDD)	180 days	1909	97 days	58

Hottest day (TXx)

The hottest day of the year at Cloverdale, 1893 to 1955. The record is 46.1 C (115.0 F) in 1905, marked on the chart; the median year is 42.2 C (108.0 F).

Hottest day (TXx) at Cloverdale by year
Year	Hottest day (TXx)
1893	n/a
1894	35.0 C (95.0 F)
1895	41.1 C (106.0 F)
1896	n/a
1902	43.3 C (109.9 F)
1903	43.3 C (109.9 F)
1904	43.3 C (109.9 F)
1905	46.1 C (115.0 F)
1906	41.7 C (107.1 F)
1907	37.8 C (100.0 F)
1908	40.6 C (105.1 F)
1909	40.6 C (105.1 F)
1910	42.2 C (108.0 F)
1911	38.3 C (100.9 F)
1912	39.4 C (102.9 F)
1913	43.3 C (109.9 F)
1914	38.3 C (100.9 F)
1915	42.2 C (108.0 F)
1916	42.2 C (108.0 F)
1917	41.1 C (106.0 F)
1918	39.4 C (102.9 F)
1919	41.7 C (107.1 F)
1920	40.6 C (105.1 F)
1921	41.7 C (107.1 F)
1922	42.8 C (109.0 F)
1923	43.9 C (111.0 F)
1924	40.6 C (105.1 F)
1925	43.9 C (111.0 F)
1926	43.9 C (111.0 F)
1927	40.6 C (105.1 F)
1928	41.1 C (106.0 F)
1929	40.6 C (105.1 F)
1930	41.7 C (107.1 F)
1931	42.2 C (108.0 F)
1932	40.6 C (105.1 F)
1933	43.3 C (109.9 F)
1934	42.8 C (109.0 F)
1935	43.3 C (109.9 F)
1936	41.7 C (107.1 F)
1937	43.9 C (111.0 F)
1938	41.1 C (106.0 F)
1939	43.3 C (109.9 F)
1940	42.2 C (108.0 F)
1941	41.1 C (106.0 F)
1942	43.3 C (109.9 F)
1943	42.8 C (109.0 F)
1944	44.4 C (111.9 F)
1945	42.8 C (109.0 F)
1946	43.9 C (111.0 F)
1947	40.0 C (104.0 F)
1948	42.2 C (108.0 F)
1949	41.1 C (106.0 F)
1950	45.0 C (113.0 F)
1951	43.3 C (109.9 F)
1952	42.2 C (108.0 F)
1953	41.7 C (107.1 F)
1954	42.8 C (109.0 F)
1955	43.3 C (109.9 F)

Coldest night (TNn)

The coldest night of the year at Cloverdale, 1893 to 1955. The record is -8.3 C (17.1 F) in 1949, marked on the chart; the median year is -3.9 C (25.0 F).

Coldest night (TNn) at Cloverdale by year
Year	Coldest night (TNn)
1893	n/a
1894	n/a
1895	7.2 C (45.0 F)
1896	n/a
1902	-1.1 C (30.0 F)
1903	-3.9 C (25.0 F)
1904	-1.7 C (28.9 F)
1905	-4.4 C (24.1 F)
1906	-2.8 C (27.0 F)
1907	-2.2 C (28.0 F)
1908	-4.4 C (24.1 F)
1909	-2.8 C (27.0 F)
1910	-5.0 C (23.0 F)
1911	-2.8 C (27.0 F)
1912	-3.3 C (26.1 F)
1913	-5.6 C (21.9 F)
1914	-2.8 C (27.0 F)
1915	-3.3 C (26.1 F)
1916	-3.9 C (25.0 F)
1917	-5.0 C (23.0 F)
1918	-5.0 C (23.0 F)
1919	-5.6 C (21.9 F)
1920	-3.9 C (25.0 F)
1921	-4.4 C (24.1 F)
1922	-5.6 C (21.9 F)
1923	-5.0 C (23.0 F)
1924	-6.1 C (21.0 F)
1925	-2.2 C (28.0 F)
1926	-4.4 C (24.1 F)
1927	-2.8 C (27.0 F)
1928	-5.0 C (23.0 F)
1929	-5.0 C (23.0 F)
1930	-6.7 C (19.9 F)
1931	-4.4 C (24.1 F)
1932	-7.2 C (19.0 F)
1933	-2.8 C (27.0 F)
1934	-2.2 C (28.0 F)
1935	-3.9 C (25.0 F)
1936	-3.3 C (26.1 F)
1937	-6.7 C (19.9 F)
1938	-3.3 C (26.1 F)
1939	-2.8 C (27.0 F)
1940	-6.7 C (19.9 F)
1941	-1.7 C (28.9 F)
1942	-1.7 C (28.9 F)
1943	-5.6 C (21.9 F)
1944	-2.2 C (28.0 F)
1945	-3.3 C (26.1 F)
1946	-3.9 C (25.0 F)
1947	-4.4 C (24.1 F)
1948	-6.7 C (19.9 F)
1949	-8.3 C (17.1 F)
1950	-4.4 C (24.1 F)
1951	-2.2 C (28.0 F)
1952	-2.2 C (28.0 F)
1953	-2.2 C (28.0 F)
1954	-3.9 C (25.0 F)
1955	-2.8 C (27.0 F)

Wettest day (Rx1day)

The wettest day of the year at Cloverdale, 1893 to 1955. The record is 220.2 mm (8.7 in) in 1920, marked on the chart; the median year is 71.5 mm (2.8 in).

Wettest day (Rx1day) at Cloverdale by year
Year	Wettest day (Rx1day)
1893	91.7 mm (3.6 in)
1894	111.3 mm (4.4 in)
1895	147.3 mm (5.8 in)
1896	89.4 mm (3.5 in)
1902	132.1 mm (5.2 in)
1903	61.7 mm (2.4 in)
1904	115.3 mm (4.5 in)
1905	71.9 mm (2.8 in)
1906	118.6 mm (4.7 in)
1907	81.8 mm (3.2 in)
1908	45.2 mm (1.8 in)
1909	136.7 mm (5.4 in)
1910	40.6 mm (1.6 in)
1911	101.6 mm (4.0 in)
1912	57.9 mm (2.3 in)
1913	95.3 mm (3.8 in)
1914	106.2 mm (4.2 in)
1915	97.3 mm (3.8 in)
1916	64.3 mm (2.5 in)
1917	88.6 mm (3.5 in)
1918	58.7 mm (2.3 in)
1919	62.0 mm (2.4 in)
1920	220.2 mm (8.7 in)
1921	84.3 mm (3.3 in)
1922	57.9 mm (2.3 in)
1923	41.9 mm (1.6 in)
1924	69.6 mm (2.7 in)
1925	69.6 mm (2.7 in)
1926	117.9 mm (4.6 in)
1927	57.2 mm (2.3 in)
1928	50.8 mm (2.0 in)
1929	57.2 mm (2.3 in)
1930	49.8 mm (2.0 in)
1931	50.8 mm (2.0 in)
1932	53.6 mm (2.1 in)
1933	94.0 mm (3.7 in)
1934	50.3 mm (2.0 in)
1935	65.5 mm (2.6 in)
1936	53.6 mm (2.1 in)
1937	144.8 mm (5.7 in)
1938	57.4 mm (2.3 in)
1939	55.9 mm (2.2 in)
1940	93.5 mm (3.7 in)
1941	71.1 mm (2.8 in)
1942	61.0 mm (2.4 in)
1943	132.1 mm (5.2 in)
1944	40.1 mm (1.6 in)
1945	139.7 mm (5.5 in)
1946	74.2 mm (2.9 in)
1947	73.4 mm (2.9 in)
1948	51.3 mm (2.0 in)
1949	57.2 mm (2.3 in)
1950	118.9 mm (4.7 in)
1951	79.8 mm (3.1 in)
1952	102.6 mm (4.0 in)
1953	68.1 mm (2.7 in)
1954	127.8 mm (5.0 in)
1955	46.0 mm (1.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Cloverdale, 1893 to 1955. The record is 286.7 mm (11.3 in) in 1896, marked on the chart; the median year is 168.0 mm (6.6 in).

Wettest five days (Rx5day) at Cloverdale by year
Year	Wettest five days (Rx5day)
1893	142.7 mm (5.6 in)
1894	207.3 mm (8.2 in)
1895	263.2 mm (10.4 in)
1896	286.7 mm (11.3 in)
1902	239.0 mm (9.4 in)
1903	163.3 mm (6.4 in)
1904	193.9 mm (7.6 in)
1905	131.3 mm (5.2 in)
1906	252.7 mm (9.9 in)
1907	234.9 mm (9.2 in)
1908	88.4 mm (3.5 in)
1909	246.4 mm (9.7 in)
1910	120.4 mm (4.7 in)
1911	198.0 mm (7.8 in)
1912	104.9 mm (4.1 in)
1913	189.3 mm (7.5 in)
1914	233.6 mm (9.2 in)
1915	268.0 mm (10.6 in)
1916	118.7 mm (4.7 in)
1917	178.4 mm (7.0 in)
1918	92.2 mm (3.6 in)
1919	147.1 mm (5.8 in)
1920	278.8 mm (11.0 in)
1921	167.2 mm (6.6 in)
1922	122.7 mm (4.8 in)
1923	78.7 mm (3.1 in)
1924	105.5 mm (4.2 in)
1925	164.1 mm (6.5 in)
1926	236.8 mm (9.3 in)
1927	168.7 mm (6.6 in)
1928	144.8 mm (5.7 in)
1929	191.1 mm (7.5 in)
1930	92.9 mm (3.7 in)
1931	143.1 mm (5.6 in)
1932	109.4 mm (4.3 in)
1933	149.3 mm (5.9 in)
1934	186.7 mm (7.4 in)
1935	124.9 mm (4.9 in)
1936	174.4 mm (6.9 in)
1937	240.5 mm (9.5 in)
1938	157.7 mm (6.2 in)
1939	104.6 mm (4.1 in)
1940	240.2 mm (9.5 in)
1941	169.4 mm (6.7 in)
1942	203.0 mm (8.0 in)
1943	279.7 mm (11.0 in)
1944	145.4 mm (5.7 in)
1945	236.2 mm (9.3 in)
1946	166.7 mm (6.6 in)
1947	110.9 mm (4.4 in)
1948	81.6 mm (3.2 in)
1949	121.7 mm (4.8 in)
1950	177.7 mm (7.0 in)
1951	207.8 mm (8.2 in)
1952	215.9 mm (8.5 in)
1953	153.5 mm (6.0 in)
1954	196.1 mm (7.7 in)
1955	110.0 mm (4.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Cloverdale, 1893 to 1955. The record is 180 days in 1909, marked on the chart; the median year is 97 days.

Longest dry spell (CDD) at Cloverdale by year
Year	Longest dry spell (CDD)
1893	41 days
1894	43 days
1895	37 days
1896	25 days
1902	134 days
1903	106 days
1904	58 days
1905	108 days
1906	99 days
1907	94 days
1908	91 days
1909	180 days
1910	154 days
1911	109 days
1912	69 days
1913	100 days
1914	85 days
1915	31 days
1916	43 days
1917	44 days
1918	31 days
1919	68 days
1920	22 days
1921	24 days
1922	31 days
1923	24 days
1924	38 days
1925	51 days
1926	146 days
1927	139 days
1928	148 days
1929	62 days
1930	103 days
1931	127 days
1932	93 days
1933	130 days
1934	109 days
1935	137 days
1936	113 days
1937	106 days
1938	128 days
1939	154 days
1940	102 days
1941	67 days
1942	133 days
1943	139 days
1944	117 days
1945	110 days
1946	67 days
1947	121 days
1948	117 days
1949	39 days
1950	75 days
1951	141 days
1952	110 days
1953	83 days
1954	45 days
1955	93 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

40 years with a frost

Across 40 years with a frost, the median last spring frost at Cloverdale falls on 16 March and the median first autumn frost on 23 November, which leaves a median of 256 days between them.

Fitted over all years, the growing season changes by +1.2 days per decade at this station.

Frost dates and growing season at Cloverdale
Measure	Median, all years	Earliest period	Recent period (1916 to 1954)	Recent against earliest	Fitted trend
Last spring frost	16 March	n/a	14 March	n/a	-1.4 days per decade
First autumn frost	23 November	n/a	19 November	n/a	-0.2 days per decade
Growing days	256 days	n/a	250 days	n/a	+1.2 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

33 years, 1903 to 1954

A day with at least 72.8 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 195.8 mm (7.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Cloverdale: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	72.8 mm (2.9 in)
5 years	101.1 mm (4.0 in)
10 years	121.6 mm (4.8 in)
25 years	149.6 mm (5.9 in)
50 years	172.0 mm (6.8 in)	Longer than the 33 years of record
100 years	195.8 mm (7.7 in)	Longer than the 33 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, 33 years of values from 1903 to 1954.

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: 144.8 mm (5.7 in) in 1937; 139.7 mm (5.5 in) in 1945; 136.7 mm (5.4 in) in 1909.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Cloverdale standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Cloverdale 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).