Wallace Weather Records (USC00049418)

Record envelope, standing records and threshold days for Wallace (USC00049418), California, United States, with 52 years of record.

Key Facts for Wallace

Wallace (USC00049418) is a weather station in California, United States at 38.20 latitude and -120.97 longitude, 101 m (331 ft) above sea level.
The station reports from 1926 to 1977, 52 years of record.
952 records set at Wallace still stand.
Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
Wallace set a daily record precipitation of 4.8 mm (0.19 in) on 12 May 1977.

About the Station

Location: California, United States, 38.20 latitude, -120.97 longitude.
Elevation: 101 m (331 ft).
Period of record: 1926 to 1977, 52 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 Wallace. 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 Wallace, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	19.4 C (66.9 F)	-3.9 C (25.0 F)	n/a	n/a
Feb	20.6 C (69.1 F)	-0.6 C (30.9 F)	n/a	n/a
Mar	25.0 C (77.0 F)	0.0 C (32.0 F)	n/a	n/a
Apr	27.2 C (81.0 F)	1.1 C (34.0 F)	n/a	n/a
May	37.2 C (99.0 F)	6.7 C (44.1 F)	n/a	n/a
Jun	41.7 C (107.1 F)	7.8 C (46.0 F)	n/a	n/a
Jul	38.9 C (102.0 F)	11.1 C (52.0 F)	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	n/a	n/a	n/a	n/a
Dec	20.0 C (68.0 F)	0.0 C (32.0 F)	n/a	n/a

Which Years Hold Standing Records

952 standing records

952 records at Wallace still stand. 1976 holds the most, with 935.

All-Time Record Progression

1 new records

1 all-time records were set at Wallace between 12 March 1960 and 12 March 1960. Each dot is a new record.

Wettest Day of Each Month

Mar: 91.4 mm (3.6 in)

The wettest day on record for each calendar month at Wallace. The most was 91.4 mm (3.6 in) on 12 March 1960.

Record daily precipitation for each month at Wallace
Month	Record daily precipitation (mm)	Date
Jan	64.5 mm (2.5 in)	6 January 1965
Feb	70.1 mm (2.8 in)	1 February 1963
Mar	91.4 mm (3.6 in)	12 March 1960
Apr	58.2 mm (2.3 in)	3 April 1958
May	29.2 mm (1.1 in)	25 May 1946
Jun	24.9 mm (1.0 in)	16 June 1929
Jul	23.4 mm (0.9 in)	9 July 1974
Aug	22.9 mm (0.9 in)	18 August 1975
Sep	44.7 mm (1.8 in)	18 September 1959
Oct	50.8 mm (2.0 in)	31 October 1927
Nov	63.2 mm (2.5 in)	18 November 1950
Dec	82.6 mm (3.3 in)	23 December 1955

Period of Record Coverage

1975 to 1976

2 years of record at Wallace, 1975 to 1976. 2 years have data for under 90 percent of days and are left out of rankings: 1975, 1976.

Latest Records

Latest records at Wallace
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 May 1977	Wallace, US	daily rain	4.8 mm (0.19 in)	3.8 mm (0.15 in)	14 years	15 of 100 (Routine)
1 May 1977	Wallace, US	daily rain	17.5 mm (0.7 in)	1.5 mm (0.06 in)	35 years	17 of 100 (Routine)
11 September 1976	Wallace, US	daily rain	1.8 mm (0.07 in)	1.8 mm (0.07 in)	50 years	20 of 100 (Routine)
22 August 1976	Wallace, US	daily rain	0.8 mm (0.03 in)	0.8 mm (0.03 in)	50 years	20 of 100 (Routine)
15 August 1976	Wallace, US	daily rain	5.3 mm (0.21 in)	5.3 mm (0.21 in)	50 years	20 of 100 (Routine)
14 August 1976	Wallace, US	daily rain	0.8 mm (0.03 in)	0.8 mm (0.03 in)	50 years	20 of 100 (Routine)
6 October 1975	Wallace, US	daily rain	0.8 mm (0.03 in)	0.8 mm (0.03 in)	48 years	19 of 100 (Routine)
9 September 1975	Wallace, US	daily rain (Tie)	0.8 mm (0.03 in)	tie	14 years	2 of 100 (Routine)
19 August 1975	Wallace, US	daily rain	5.8 mm (0.23 in)	5.8 mm (0.23 in)	48 years	20 of 100 (Routine)
18 August 1975	Wallace, US	monthly rain	22.9 mm (0.9 in)	6.1 mm (0.24 in)	10 years	20 of 100 (Routine)
16 July 1975	Wallace, US	daily rain	1.0 mm (0.04 in)	1.0 mm (0.04 in)	48 years	20 of 100 (Routine)
24 June 1975	Wallace, US	daily rain	0.3 mm (0.01 in)	0.3 mm (0.01 in)	48 years	19 of 100 (Routine)
14 March 1975	Wallace, US	daily rain	19.3 mm (0.8 in)	6.1 mm (0.24 in)	26 years	18 of 100 (Routine)
9 February 1975	Wallace, US	daily rain	27.4 mm (1.1 in)	9.9 mm (0.39 in)	31 years	23 of 100 (Routine)
28 October 1974	Wallace, US	daily rain	20.1 mm (0.8 in)	17.8 mm (0.7 in)	27 years	20 of 100 (Routine)
10 July 1974	Wallace, US	daily rain	6.4 mm (0.25 in)	3.9 mm (0.15 in)	28 years	15 of 100 (Routine)
9 July 1974	Wallace, US	monthly rain	23.4 mm (0.9 in)	20.6 mm (0.8 in)	11 years	20 of 100 (Routine)
8 July 1974	Wallace, US	daily rain	2.0 mm (0.08 in)	2.0 mm (0.08 in)	47 years	20 of 100 (Routine)
19 June 1974	Wallace, US	daily rain	21.1 mm (0.8 in)	20.1 mm (0.8 in)	17 years	20 of 100 (Routine)
9 April 1974	Wallace, US	daily rain	11.4 mm (0.4 in)	0.2 mm (0.01 in)	28 years	12 of 100 (Routine)

Extremes by Year

1926 to 1977

Yearly extremes at Wallace: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.7 C (107.1 F)	1976	29.2 C (84.6 F)	2
Coldest night (TNn)	-3.9 C (25.0 F)	1976	-0.3 C (31.5 F)	2
Wettest day (Rx1day)	91.4 mm (3.6 in)	1960	46.9 mm (1.8 in)	50
Wettest five days (Rx5day)	165.1 mm (6.5 in)	1955	75.0 mm (3.0 in)	50
Longest dry spell (CDD)	182 days	1932	112 days	50

Hottest day (TXx)

The hottest day of the year at Wallace, 1926 to 1977. The record is 41.7 C (107.1 F) in 1976, marked on the chart; the median year is 29.2 C (84.6 F).

Hottest day (TXx) at Wallace by year
Year	Hottest day (TXx)
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	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	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1974	n/a
1975	16.7 C (62.1 F)
1976	41.7 C (107.1 F)
1977	n/a

Coldest night (TNn)

The coldest night of the year at Wallace, 1926 to 1977. The record is -3.9 C (25.0 F) in 1976, marked on the chart; the median year is -0.3 C (31.5 F).

Coldest night (TNn) at Wallace by year
Year	Coldest night (TNn)
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	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	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1974	n/a
1975	3.3 C (37.9 F)
1976	-3.9 C (25.0 F)
1977	n/a

Wettest day (Rx1day)

The wettest day of the year at Wallace, 1926 to 1977. The record is 91.4 mm (3.6 in) in 1960, marked on the chart; the median year is 46.9 mm (1.8 in).

Wettest day (Rx1day) at Wallace by year
Year	Wettest day (Rx1day)
1926	27.9 mm (1.1 in)
1927	50.8 mm (2.0 in)
1928	50.8 mm (2.0 in)
1929	33.5 mm (1.3 in)
1930	27.9 mm (1.1 in)
1932	22.9 mm (0.9 in)
1933	43.4 mm (1.7 in)
1934	39.4 mm (1.6 in)
1935	47.0 mm (1.9 in)
1936	52.3 mm (2.1 in)
1937	76.2 mm (3.0 in)
1938	47.8 mm (1.9 in)
1939	48.0 mm (1.9 in)
1940	46.7 mm (1.8 in)
1941	36.8 mm (1.4 in)
1942	63.5 mm (2.5 in)
1943	70.1 mm (2.8 in)
1944	60.7 mm (2.4 in)
1945	49.8 mm (2.0 in)
1946	36.3 mm (1.4 in)
1947	31.5 mm (1.2 in)
1948	35.1 mm (1.4 in)
1949	37.3 mm (1.5 in)
1950	63.2 mm (2.5 in)
1951	49.3 mm (1.9 in)
1952	37.3 mm (1.5 in)
1953	53.3 mm (2.1 in)
1954	36.1 mm (1.4 in)
1955	82.6 mm (3.3 in)
1956	28.7 mm (1.1 in)
1957	32.8 mm (1.3 in)
1958	58.2 mm (2.3 in)
1959	44.7 mm (1.8 in)
1960	91.4 mm (3.6 in)
1961	33.3 mm (1.3 in)
1962	38.1 mm (1.5 in)
1963	70.1 mm (2.8 in)
1964	53.8 mm (2.1 in)
1965	64.5 mm (2.5 in)
1966	45.5 mm (1.8 in)
1967	60.5 mm (2.4 in)
1968	50.5 mm (2.0 in)
1969	47.8 mm (1.9 in)
1970	59.4 mm (2.3 in)
1971	62.0 mm (2.4 in)
1972	28.7 mm (1.1 in)
1974	31.2 mm (1.2 in)
1975	27.4 mm (1.1 in)
1976	13.2 mm (0.5 in)
1977	23.4 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Wallace, 1926 to 1977. The record is 165.1 mm (6.5 in) in 1955, marked on the chart; the median year is 75.0 mm (3.0 in).

Wettest five days (Rx5day) at Wallace by year
Year	Wettest five days (Rx5day)
1926	73.1 mm (2.9 in)
1927	62.2 mm (2.4 in)
1928	97.5 mm (3.8 in)
1929	50.8 mm (2.0 in)
1930	56.9 mm (2.2 in)
1932	52.6 mm (2.1 in)
1933	113.3 mm (4.5 in)
1934	108.6 mm (4.3 in)
1935	70.6 mm (2.8 in)
1936	99.8 mm (3.9 in)
1937	140.1 mm (5.5 in)
1938	88.9 mm (3.5 in)
1939	69.9 mm (2.8 in)
1940	96.8 mm (3.8 in)
1941	67.0 mm (2.6 in)
1942	108.7 mm (4.3 in)
1943	124.5 mm (4.9 in)
1944	84.1 mm (3.3 in)
1945	111.7 mm (4.4 in)
1946	62.5 mm (2.5 in)
1947	42.0 mm (1.7 in)
1948	53.6 mm (2.1 in)
1949	66.5 mm (2.6 in)
1950	121.1 mm (4.8 in)
1951	77.7 mm (3.1 in)
1952	75.9 mm (3.0 in)
1953	57.9 mm (2.3 in)
1954	68.6 mm (2.7 in)
1955	165.1 mm (6.5 in)
1956	55.1 mm (2.2 in)
1957	69.0 mm (2.7 in)
1958	136.4 mm (5.4 in)
1959	78.3 mm (3.1 in)
1960	115.2 mm (4.5 in)
1961	52.1 mm (2.1 in)
1962	75.2 mm (3.0 in)
1963	108.0 mm (4.3 in)
1964	135.8 mm (5.3 in)
1965	98.1 mm (3.9 in)
1966	55.6 mm (2.2 in)
1967	116.9 mm (4.6 in)
1968	67.5 mm (2.7 in)
1969	74.7 mm (2.9 in)
1970	109.4 mm (4.3 in)
1971	104.9 mm (4.1 in)
1972	62.5 mm (2.5 in)
1974	44.2 mm (1.7 in)
1975	61.5 mm (2.4 in)
1976	36.1 mm (1.4 in)
1977	31.0 mm (1.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Wallace, 1926 to 1977. The record is 182 days in 1932, marked on the chart; the median year is 112 days.

Longest dry spell (CDD) at Wallace by year
Year	Longest dry spell (CDD)
1926	61 days
1927	140 days
1928	121 days
1929	67 days
1930	146 days
1932	182 days
1933	56 days
1934	89 days
1935	153 days
1936	132 days
1937	108 days
1938	149 days
1939	111 days
1940	147 days
1941	110 days
1942	137 days
1943	141 days
1944	112 days
1945	35 days
1946	113 days
1947	120 days
1948	132 days
1949	100 days
1950	120 days
1951	150 days
1952	63 days
1953	119 days
1954	148 days
1955	130 days
1956	91 days
1957	110 days
1958	102 days
1959	144 days
1960	133 days
1961	38 days
1962	75 days
1963	123 days
1964	81 days
1965	112 days
1966	98 days
1967	118 days
1968	86 days
1969	135 days
1970	111 days
1971	95 days
1972	56 days
1974	109 days
1975	80 days
1976	124 days
1977	49 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

41 years, 1927 to 1976

A day with at least 48.0 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 92.2 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Wallace: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	48.0 mm (1.9 in)
5 years	62.5 mm (2.5 in)
10 years	71.0 mm (2.8 in)
25 years	80.4 mm (3.2 in)
50 years	86.6 mm (3.4 in)	Longer than the 41 years of record
100 years	92.2 mm (3.6 in)	Longer than the 41 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, 41 years of values from 1927 to 1976.

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: 91.4 mm (3.6 in) in 1960; 82.6 mm (3.3 in) in 1955; 76.2 mm (3.0 in) in 1937.

Download the Data

Data for Wallace standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Wallace 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 2026-10-16 (16 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).

Year	Days with data	Share of year	Complete
1975	8	2%	No
1976	238	65%	No