Fullerton Hillcrest Re Weather Records (USC00043288)

Record envelope, standing records and threshold days for Fullerton Hillcrest Re (USC00043288), California, United States, with 44 years of record.

Key Facts for Fullerton Hillcrest Re

Fullerton Hillcrest Re (USC00043288) is a weather station in California, United States at 33.88 latitude and -117.92 longitude, 101 m (331 ft) above sea level.
The station reports from 1933 to 1976, 44 years of record.
0 records set at Fullerton Hillcrest Re still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Fullerton Hillcrest Re set a daily record precipitation of 19.6 mm (0.8 in) on 11 September 1976.

About the Station

Location: California, United States, 33.88 latitude, -117.92 longitude.
Elevation: 101 m (331 ft).
Period of record: 1933 to 1976, 44 years.
Eligible elements: 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 Fullerton Hillcrest Re. 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 Fullerton Hillcrest Re, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
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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	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Fullerton Hillcrest Re still stand.

Wettest Day of Each Month

Sep: 139.4 mm (5.5 in)

The wettest day on record for each calendar month at Fullerton Hillcrest Re. The most was 139.4 mm (5.5 in) on 25 September 1939.

Record daily precipitation for each month at Fullerton Hillcrest Re
Month	Record daily precipitation (mm)	Date
Jan	131.1 mm (5.2 in)	26 January 1956
Feb	116.3 mm (4.6 in)	6 February 1937
Mar	90.2 mm (3.6 in)	14 March 1941
Apr	33.8 mm (1.3 in)	1 April 1958
May	26.7 mm (1.1 in)	9 May 1956
Jun	15.5 mm (0.6 in)	5 June 1934
Jul	2.3 mm (0.09 in)	12 July 1969
Aug	14.0 mm (0.6 in)	15 August 1958
Sep	139.4 mm (5.5 in)	25 September 1939
Oct	89.9 mm (3.5 in)	17 October 1934
Nov	75.9 mm (3.0 in)	29 November 1970
Dec	96.3 mm (3.8 in)	31 December 1933

Latest Records

Latest records at Fullerton Hillcrest Re
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 September 1976	Fullerton Hillcrest Re, US	daily rain	19.6 mm (0.8 in)	15.0 mm (0.6 in)	37 years	20 of 100 (Routine)
10 September 1976	Fullerton Hillcrest Re, US	daily rain	34.5 mm (1.4 in)	34.5 mm (1.4 in)	43 years	50 of 100 (Notable)
6 September 1976	Fullerton Hillcrest Re, US	daily rain	13.2 mm (0.5 in)	12.7 mm (0.5 in)	4 years	17 of 100 (Routine)
22 July 1976	Fullerton Hillcrest Re, US	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	43 years	16 of 100 (Routine)
10 June 1976	Fullerton Hillcrest Re, US	daily rain	10.4 mm (0.4 in)	5.1 mm (0.20 in)	19 years	14 of 100 (Routine)
16 April 1976	Fullerton Hillcrest Re, US	daily rain	1.8 mm (0.07 in)	0.3 mm (0.01 in)	36 years	14 of 100 (Routine)
28 November 1975	Fullerton Hillcrest Re, US	daily rain	8.6 mm (0.34 in)	7.1 mm (0.28 in)	4 years	10 of 100 (Routine)
27 November 1975	Fullerton Hillcrest Re, US	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	41 years	16 of 100 (Routine)
30 October 1975	Fullerton Hillcrest Re, US	daily rain	9.1 mm (0.36 in)	4.3 mm (0.17 in)	38 years	18 of 100 (Routine)
15 April 1975	Fullerton Hillcrest Re, US	daily rain	4.6 mm (0.18 in)	3.3 mm (0.13 in)	12 years	11 of 100 (Routine)
9 April 1975	Fullerton Hillcrest Re, US	daily rain	18.8 mm (0.7 in)	8.1 mm (0.32 in)	9 years	16 of 100 (Routine)
6 March 1975	Fullerton Hillcrest Re, US	daily rain	28.2 mm (1.1 in)	19.3 mm (0.8 in)	16 years	22 of 100 (Routine)
3 February 1975	Fullerton Hillcrest Re, US	daily rain	31.2 mm (1.2 in)	0.5 mm (0.02 in)	16 years	9 of 100 (Routine)
28 December 1974	Fullerton Hillcrest Re, US	daily rain	12.7 mm (0.5 in)	1.0 mm (0.04 in)	37 years	15 of 100 (Routine)
4 December 1974	Fullerton Hillcrest Re, US	daily rain	66.5 mm (2.6 in)	38.6 mm (1.5 in)	1 year	26 of 100 (Routine)
6 October 1974	Fullerton Hillcrest Re, US	daily rain	3.3 mm (0.13 in)	3.3 mm (0.13 in)	40 years	18 of 100 (Routine)
23 May 1974	Fullerton Hillcrest Re, US	daily rain	1.3 mm (0.05 in)	1.3 mm (0.05 in)	40 years	18 of 100 (Routine)
8 May 1974	Fullerton Hillcrest Re, US	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	40 years	17 of 100 (Routine)
6 May 1974	Fullerton Hillcrest Re, US	daily rain	3.0 mm (0.12 in)	0.2 mm (0.01 in)	9 years	6 of 100 (Routine)
8 March 1974	Fullerton Hillcrest Re, US	daily rain	35.3 mm (1.4 in)	17.0 mm (0.7 in)	0 years	15 of 100 (Routine)

Extremes by Year

1933 to 1976

Yearly extremes at Fullerton Hillcrest Re: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	139.4 mm (5.5 in)	1939	48.9 mm (1.9 in)	42
Wettest five days (Rx5day)	216.3 mm (8.5 in)	1938	90.5 mm (3.6 in)	42
Longest dry spell (CDD)	219 days	1970	137 days	42

Wettest day (Rx1day)

The wettest day of the year at Fullerton Hillcrest Re, 1933 to 1976. The record is 139.4 mm (5.5 in) in 1939, marked on the chart; the median year is 48.9 mm (1.9 in).

Wettest day (Rx1day) at Fullerton Hillcrest Re by year
Year	Wettest day (Rx1day)
1933	96.3 mm (3.8 in)
1934	89.9 mm (3.5 in)
1935	30.5 mm (1.2 in)
1936	40.4 mm (1.6 in)
1937	116.3 mm (4.6 in)
1938	87.6 mm (3.4 in)
1939	139.4 mm (5.5 in)
1940	77.2 mm (3.0 in)
1941	90.2 mm (3.6 in)
1942	21.6 mm (0.9 in)
1943	90.2 mm (3.6 in)
1944	63.5 mm (2.5 in)
1945	32.0 mm (1.3 in)
1948	36.1 mm (1.4 in)
1949	32.0 mm (1.3 in)
1950	47.5 mm (1.9 in)
1951	67.3 mm (2.6 in)
1952	87.9 mm (3.5 in)
1953	19.8 mm (0.8 in)
1954	58.4 mm (2.3 in)
1955	27.9 mm (1.1 in)
1956	131.1 mm (5.2 in)
1957	32.3 mm (1.3 in)
1958	51.1 mm (2.0 in)
1959	42.4 mm (1.7 in)
1960	32.3 mm (1.3 in)
1961	35.3 mm (1.4 in)
1962	64.3 mm (2.5 in)
1963	68.6 mm (2.7 in)
1964	23.9 mm (0.9 in)
1965	41.7 mm (1.6 in)
1966	56.4 mm (2.2 in)
1967	50.3 mm (2.0 in)
1968	30.5 mm (1.2 in)
1969	75.9 mm (3.0 in)
1970	75.9 mm (3.0 in)
1971	41.9 mm (1.6 in)
1972	35.1 mm (1.4 in)
1973	33.5 mm (1.3 in)
1974	66.5 mm (2.6 in)
1975	31.2 mm (1.2 in)
1976	34.5 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Fullerton Hillcrest Re, 1933 to 1976. The record is 216.3 mm (8.5 in) in 1938, marked on the chart; the median year is 90.5 mm (3.6 in).

Wettest five days (Rx5day) at Fullerton Hillcrest Re by year
Year	Wettest five days (Rx5day)
1933	112.6 mm (4.4 in)
1934	157.8 mm (6.2 in)
1935	57.3 mm (2.3 in)
1936	88.1 mm (3.5 in)
1937	122.1 mm (4.8 in)
1938	216.3 mm (8.5 in)
1939	151.6 mm (6.0 in)
1940	113.5 mm (4.5 in)
1941	179.6 mm (7.1 in)
1942	39.1 mm (1.5 in)
1943	156.5 mm (6.2 in)
1944	118.1 mm (4.6 in)
1945	64.2 mm (2.5 in)
1948	36.1 mm (1.4 in)
1949	58.9 mm (2.3 in)
1950	66.0 mm (2.6 in)
1951	107.0 mm (4.2 in)
1952	152.9 mm (6.0 in)
1953	24.6 mm (1.0 in)
1954	83.3 mm (3.3 in)
1955	48.3 mm (1.9 in)
1956	199.9 mm (7.9 in)
1957	53.8 mm (2.1 in)
1958	93.8 mm (3.7 in)
1959	42.5 mm (1.7 in)
1960	64.8 mm (2.6 in)
1961	42.2 mm (1.7 in)
1962	143.5 mm (5.6 in)
1963	92.9 mm (3.7 in)
1964	31.6 mm (1.2 in)
1965	80.7 mm (3.2 in)
1966	126.8 mm (5.0 in)
1967	99.6 mm (3.9 in)
1968	31.0 mm (1.2 in)
1969	157.9 mm (6.2 in)
1970	97.2 mm (3.8 in)
1971	98.3 mm (3.9 in)
1972	86.2 mm (3.4 in)
1973	63.0 mm (2.5 in)
1974	137.4 mm (5.4 in)
1975	68.1 mm (2.7 in)
1976	79.3 mm (3.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Fullerton Hillcrest Re, 1933 to 1976. The record is 219 days in 1970, marked on the chart; the median year is 137 days.

Longest dry spell (CDD) at Fullerton Hillcrest Re by year
Year	Longest dry spell (CDD)
1933	81 days
1934	73 days
1935	115 days
1936	61 days
1937	170 days
1938	147 days
1939	140 days
1940	162 days
1941	171 days
1942	109 days
1943	192 days
1944	139 days
1945	31 days
1948	155 days
1949	111 days
1950	67 days
1951	107 days
1952	143 days
1953	150 days
1954	102 days
1955	190 days
1956	147 days
1957	71 days
1958	69 days
1959	189 days
1960	157 days
1961	211 days
1962	154 days
1963	56 days
1964	139 days
1965	47 days
1966	177 days
1967	156 days
1968	61 days
1969	116 days
1970	219 days
1971	140 days
1972	72 days
1973	92 days
1974	135 days
1975	97 days
1976	87 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

36 years, 1934 to 1976

A day with at least 53.3 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 165.3 mm (6.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Fullerton Hillcrest Re: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	53.3 mm (2.1 in)
5 years	81.0 mm (3.2 in)
10 years	100.2 mm (3.9 in)
25 years	125.6 mm (4.9 in)
50 years	145.1 mm (5.7 in)	Longer than the 36 years of record
100 years	165.3 mm (6.5 in)	Longer than the 36 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, 36 years of values from 1934 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: 139.4 mm (5.5 in) in 1939; 131.1 mm (5.2 in) in 1956; 116.3 mm (4.6 in) in 1937.

Download the Data

Data for Fullerton Hillcrest Re standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Fullerton Hillcrest Re 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.

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

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
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Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
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Dec	n/a	n/a	n/a	n/a