Kelseyville Weather Records (USC00044488)

Record envelope, standing records and threshold days for Kelseyville (USC00044488), California, United States, with 83 years of record.

Key Facts for Kelseyville

Kelseyville (USC00044488) is a weather station in California, United States at 38.98 latitude and -122.83 longitude, 424 m (1,391 ft) above sea level.
The station reports from 1893 to 1975, 83 years of record.
596 records set at Kelseyville still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Kelseyville set a daily record precipitation of 21.6 mm (0.9 in) on 28 October 1974.

About the Station

Location: California, United States, 38.98 latitude, -122.83 longitude.
Elevation: 424 m (1,391 ft).
Period of record: 1893 to 1975, 83 years.
Eligible elements: prcp, snow.

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 Kelseyville. 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 Kelseyville, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	23.3 C (73.9 F)	-5.6 C (21.9 F)	n/a	n/a
Feb	25.0 C (77.0 F)	-3.3 C (26.1 F)	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	32.8 C (91.0 F)	-2.8 C (27.0 F)	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	22.8 C (73.0 F)	-2.2 C (28.0 F)	n/a	n/a
Dec	18.9 C (66.0 F)	-1.7 C (28.9 F)	n/a	n/a

Which Years Hold Standing Records

596 standing records

596 records at Kelseyville still stand. 1893 holds the most, with 240.

All-Time Record Progression

1 new records

1 all-time records were set at Kelseyville between 12 October 1962 and 12 October 1962. Each dot is a new record.

Wettest Day of Each Month

Oct: 142.0 mm (5.6 in)

The wettest day on record for each calendar month at Kelseyville. The most was 142.0 mm (5.6 in) on 12 October 1962.

Record daily precipitation for each month at Kelseyville
Month	Record daily precipitation (mm)	Date
Jan	109.2 mm (4.3 in)	14 January 1894
Feb	85.3 mm (3.4 in)	28 February 1940
Mar	60.5 mm (2.4 in)	30 March 1974
Apr	40.4 mm (1.6 in)	4 April 1941
May	32.3 mm (1.3 in)	30 May 1942
Jun	27.4 mm (1.1 in)	16 June 1937
Jul	16.0 mm (0.6 in)	8 July 1974
Aug	25.1 mm (1.0 in)	28 August 1954
Sep	48.5 mm (1.9 in)	27 September 1957
Oct	142.0 mm (5.6 in)	12 October 1962
Nov	65.8 mm (2.6 in)	14 November 1953
Dec	124.7 mm (4.9 in)	11 December 1937

Period of Record Coverage

1893 to 1971

4 years of record at Kelseyville, 1893 to 1971. 4 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1965, 1971.

Latest Records

Latest records at Kelseyville
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 October 1974	Kelseyville, US	daily rain	21.6 mm (0.9 in)	4.3 mm (0.17 in)	9 years	12 of 100 (Routine)
5 August 1974	Kelseyville, US	daily rain (Tie)	0.5 mm (0.02 in)	tie	12 years	2 of 100 (Routine)
8 July 1974	Kelseyville, US	monthly rain	16.0 mm (0.6 in)	5.8 mm (0.23 in)	27 years	20 of 100 (Routine)
30 March 1974	Kelseyville, US	monthly rain	60.5 mm (2.4 in)	3.3 mm (0.13 in)	0 years	21 of 100 (Routine)
2 March 1974	Kelseyville, US	daily rain	25.9 mm (1.0 in)	2.8 mm (0.11 in)	24 years	18 of 100 (Routine)
1 March 1974	Kelseyville, US	monthly rain	57.2 mm (2.3 in)	12.5 mm (0.5 in)	25 years	39 of 100 (Notable)
16 January 1974	Kelseyville, US	daily rain	68.6 mm (2.7 in)	15.0 mm (0.6 in)	20 years	23 of 100 (Routine)
12 November 1973	Kelseyville, US	daily rain	33.5 mm (1.3 in)	15.7 mm (0.6 in)	12 years	25 of 100 (Routine)
11 November 1973	Kelseyville, US	daily rain	39.1 mm (1.5 in)	2.3 mm (0.09 in)	36 years	20 of 100 (Routine)
10 November 1973	Kelseyville, US	daily rain	34.3 mm (1.4 in)	5.6 mm (0.22 in)	8 years	15 of 100 (Routine)
7 November 1973	Kelseyville, US	daily rain	30.5 mm (1.2 in)	11.7 mm (0.5 in)	28 years	26 of 100 (Routine)
23 October 1973	Kelseyville, US	daily rain	29.2 mm (1.1 in)	16.5 mm (0.6 in)	16 years	23 of 100 (Routine)
22 October 1973	Kelseyville, US	daily rain	13.0 mm (0.5 in)	6.9 mm (0.27 in)	39 years	20 of 100 (Routine)
23 September 1973	Kelseyville, US	daily rain	9.1 mm (0.36 in)	6.3 mm (0.25 in)	39 years	20 of 100 (Routine)
20 September 1973	Kelseyville, US	daily rain	6.1 mm (0.24 in)	6.1 mm (0.24 in)	40 years	20 of 100 (Routine)
26 August 1973	Kelseyville, US	daily rain	6.9 mm (0.27 in)	2.6 mm (0.10 in)	19 years	15 of 100 (Routine)
10 February 1973	Kelseyville, US	daily rain	25.7 mm (1.0 in)	5.9 mm (0.23 in)	32 years	21 of 100 (Routine)
7 February 1973	Kelseyville, US	daily rain	21.1 mm (0.8 in)	1.8 mm (0.07 in)	24 years	16 of 100 (Routine)
26 September 1972	Kelseyville, US	daily rain	24.9 mm (1.0 in)	24.4 mm (1.0 in)	15 years	20 of 100 (Routine)
20 May 1972	Kelseyville, US	daily rain	6.9 mm (0.27 in)	3.1 mm (0.12 in)	15 years	18 of 100 (Routine)

Extremes by Year

1893 to 1975

Yearly extremes at Kelseyville: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	32.8 C (91.0 F)	1894	25.0 C (77.0 F)	4
Coldest night (TNn)	-5.6 C (21.9 F)	1894	-3.6 C (25.5 F)	4
Wettest day (Rx1day)	142.0 mm (5.6 in)	1962	54.4 mm (2.1 in)	47
Wettest five days (Rx5day)	267.0 mm (10.5 in)	1955	119.1 mm (4.7 in)	47
Longest dry spell (CDD)	164 days	1933	107 days	47

Hottest day (TXx)

The hottest day of the year at Kelseyville, 1893 to 1975. The record is 32.8 C (91.0 F) in 1894, marked on the chart; the median year is 25.0 C (77.0 F).

Hottest day (TXx) at Kelseyville by year
Year	Hottest day (TXx)
1893	22.8 C (73.0 F)
1894	32.8 C (91.0 F)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
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	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	n/a
1964	n/a
1965	21.1 C (70.0 F)
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	27.2 C (81.0 F)
1972	n/a
1973	n/a
1974	n/a
1975	n/a

Coldest night (TNn)

The coldest night of the year at Kelseyville, 1893 to 1975. The record is -5.6 C (21.9 F) in 1894, marked on the chart; the median year is -3.6 C (25.5 F).

Coldest night (TNn) at Kelseyville by year
Year	Coldest night (TNn)
1893	-2.2 C (28.0 F)
1894	-5.6 C (21.9 F)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
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	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	n/a
1964	n/a
1965	-4.4 C (24.1 F)
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	-2.8 C (27.0 F)
1972	n/a
1973	n/a
1974	n/a
1975	n/a

Wettest day (Rx1day)

The wettest day of the year at Kelseyville, 1893 to 1975. The record is 142.0 mm (5.6 in) in 1962, marked on the chart; the median year is 54.4 mm (2.1 in).

Wettest day (Rx1day) at Kelseyville by year
Year	Wettest day (Rx1day)
1893	42.7 mm (1.7 in)
1894	109.2 mm (4.3 in)
1931	61.5 mm (2.4 in)
1932	27.4 mm (1.1 in)
1933	42.4 mm (1.7 in)
1934	35.6 mm (1.4 in)
1935	47.5 mm (1.9 in)
1936	41.7 mm (1.6 in)
1937	124.7 mm (4.9 in)
1938	31.8 mm (1.3 in)
1939	27.4 mm (1.1 in)
1940	85.3 mm (3.4 in)
1941	47.2 mm (1.9 in)
1942	52.8 mm (2.1 in)
1943	108.7 mm (4.3 in)
1944	36.3 mm (1.4 in)
1945	48.0 mm (1.9 in)
1946	55.4 mm (2.2 in)
1947	52.8 mm (2.1 in)
1948	44.7 mm (1.8 in)
1949	38.9 mm (1.5 in)
1950	66.3 mm (2.6 in)
1951	49.3 mm (1.9 in)
1952	78.2 mm (3.1 in)
1953	65.8 mm (2.6 in)
1954	90.7 mm (3.6 in)
1955	101.9 mm (4.0 in)
1956	47.0 mm (1.9 in)
1957	51.3 mm (2.0 in)
1958	73.2 mm (2.9 in)
1959	46.5 mm (1.8 in)
1960	73.4 mm (2.9 in)
1961	37.3 mm (1.5 in)
1962	142.0 mm (5.6 in)
1963	60.7 mm (2.4 in)
1964	77.5 mm (3.1 in)
1965	56.1 mm (2.2 in)
1966	56.4 mm (2.2 in)
1967	71.1 mm (2.8 in)
1968	62.5 mm (2.5 in)
1969	60.5 mm (2.4 in)
1970	72.9 mm (2.9 in)
1971	46.7 mm (1.8 in)
1972	52.1 mm (2.1 in)
1973	54.4 mm (2.1 in)
1974	68.6 mm (2.7 in)
1975	43.2 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Kelseyville, 1893 to 1975. The record is 267.0 mm (10.5 in) in 1955, marked on the chart; the median year is 119.1 mm (4.7 in).

Wettest five days (Rx5day) at Kelseyville by year
Year	Wettest five days (Rx5day)
1893	100.6 mm (4.0 in)
1894	185.8 mm (7.3 in)
1931	138.2 mm (5.4 in)
1932	68.3 mm (2.7 in)
1933	112.3 mm (4.4 in)
1934	88.2 mm (3.5 in)
1935	89.4 mm (3.5 in)
1936	83.8 mm (3.3 in)
1937	194.3 mm (7.6 in)
1938	107.0 mm (4.2 in)
1939	66.3 mm (2.6 in)
1940	181.6 mm (7.1 in)
1941	105.0 mm (4.1 in)
1942	126.7 mm (5.0 in)
1943	201.1 mm (7.9 in)
1944	79.6 mm (3.1 in)
1945	110.5 mm (4.4 in)
1946	97.6 mm (3.8 in)
1947	76.4 mm (3.0 in)
1948	74.4 mm (2.9 in)
1949	84.7 mm (3.3 in)
1950	134.6 mm (5.3 in)
1951	110.5 mm (4.4 in)
1952	134.9 mm (5.3 in)
1953	89.0 mm (3.5 in)
1954	145.3 mm (5.7 in)
1955	267.0 mm (10.5 in)
1956	161.2 mm (6.3 in)
1957	164.6 mm (6.5 in)
1958	111.0 mm (4.4 in)
1959	131.6 mm (5.2 in)
1960	101.9 mm (4.0 in)
1961	95.8 mm (3.8 in)
1962	240.8 mm (9.5 in)
1963	170.7 mm (6.7 in)
1964	201.5 mm (7.9 in)
1965	151.0 mm (5.9 in)
1966	119.1 mm (4.7 in)
1967	132.9 mm (5.2 in)
1968	136.5 mm (5.4 in)
1969	123.7 mm (4.9 in)
1970	135.4 mm (5.3 in)
1971	91.4 mm (3.6 in)
1972	65.6 mm (2.6 in)
1973	122.9 mm (4.8 in)
1974	144.1 mm (5.7 in)
1975	28.2 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Kelseyville, 1893 to 1975. The record is 164 days in 1933, marked on the chart; the median year is 107 days.

Longest dry spell (CDD) at Kelseyville by year
Year	Longest dry spell (CDD)
1893	16 days
1894	23 days
1931	7 days
1932	154 days
1933	164 days
1934	101 days
1935	119 days
1936	113 days
1937	107 days
1938	121 days
1939	132 days
1940	109 days
1941	68 days
1942	133 days
1943	124 days
1944	117 days
1945	130 days
1946	60 days
1947	113 days
1948	102 days
1949	98 days
1950	127 days
1951	148 days
1952	99 days
1953	84 days
1954	77 days
1955	136 days
1956	60 days
1957	128 days
1958	85 days
1959	89 days
1960	134 days
1961	107 days
1962	74 days
1963	150 days
1964	54 days
1965	112 days
1966	98 days
1967	106 days
1968	41 days
1969	115 days
1970	130 days
1971	94 days
1972	127 days
1973	132 days
1974	91 days
1975	20 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.

Rainfall Return Levels

42 years, 1932 to 1974

A day with at least 54.7 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 154.9 mm (6.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Kelseyville: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	54.7 mm (2.2 in)
5 years	75.9 mm (3.0 in)
10 years	92.0 mm (3.6 in)
25 years	114.9 mm (4.5 in)
50 years	134.0 mm (5.3 in)	Longer than the 42 years of record
100 years	154.9 mm (6.1 in)	Longer than the 42 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, 42 years of values from 1932 to 1974.

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: 142.0 mm (5.6 in) in 1962; 124.7 mm (4.9 in) in 1937; 108.7 mm (4.3 in) in 1943.

Download the Data

Data for Kelseyville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Kelseyville 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 2026-10-13 (13 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).