Hillsborough Rvr Sp Weather Records (USC00083986)

Record envelope, standing records and threshold days for Hillsborough Rvr Sp (USC00083986), Florida, United States, with 84 years of record.

Key Facts for Hillsborough Rvr Sp

Hillsborough Rvr Sp (USC00083986) is a weather station in Florida, United States at 28.15 latitude and -82.23 longitude, 16 m (53 ft) above sea level.
The station reports from 1943 to 2026, 84 years of record.
1,462 records set at Hillsborough Rvr Sp still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hillsborough Rvr Sp set a daily record precipitation of 68.6 mm (2.7 in) on 15 August 2026.

About the Station

Location: Florida, United States, 28.15 latitude, -82.23 longitude.
Elevation: 16 m (53 ft).
Period of record: 1943 to 2026, 84 years.
Eligible elements: prcp, snow, snwd.

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 Hillsborough Rvr Sp. 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 Hillsborough Rvr Sp, 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)	-3.3 C (26.1 F)	n/a	n/a
Feb	31.7 C (89.1 F)	-3.9 C (25.0 F)	n/a	n/a
Mar	33.3 C (91.9 F)	1.1 C (34.0 F)	n/a	n/a
Apr	37.2 C (99.0 F)	-1.1 C (30.0 F)	n/a	n/a
May	40.0 C (104.0 F)	3.9 C (39.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	15.6 C (60.1 F)	n/a	n/a
Jul	36.1 C (97.0 F)	16.7 C (62.1 F)	n/a	n/a
Aug	36.7 C (98.1 F)	18.9 C (66.0 F)	n/a	n/a
Sep	36.1 C (97.0 F)	15.6 C (60.1 F)	n/a	n/a
Oct	33.9 C (93.0 F)	3.3 C (37.9 F)	n/a	n/a
Nov	32.8 C (91.0 F)	-1.7 C (28.9 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-5.6 C (21.9 F)	n/a	n/a

Which Years Hold Standing Records

1,462 standing records

1,462 records at Hillsborough Rvr Sp still stand. 1944 holds the most, with 560.

All-Time Record Progression

1 new records

1 all-time records were set at Hillsborough Rvr Sp between 10 October 2024 and 10 October 2024. Each dot is a new record.

Wettest Day of Each Month

Oct: 325.1 mm (12.8 in)

The wettest day on record for each calendar month at Hillsborough Rvr Sp. The most was 325.1 mm (12.8 in) on 10 October 2024.

Record daily precipitation for each month at Hillsborough Rvr Sp
Month	Record daily precipitation (mm)	Date
Jan	132.1 mm (5.2 in)	2 January 1996
Feb	103.4 mm (4.1 in)	3 February 2006
Mar	144.8 mm (5.7 in)	11 March 2010
Apr	119.4 mm (4.7 in)	5 April 2011
May	113.3 mm (4.5 in)	15 May 1971
Jun	305.8 mm (12.0 in)	23 June 1945
Jul	169.2 mm (6.7 in)	28 July 1960
Aug	160.5 mm (6.3 in)	17 August 1967
Sep	193.8 mm (7.6 in)	18 September 1947
Oct	325.1 mm (12.8 in)	10 October 2024
Nov	161.0 mm (6.3 in)	23 November 1988
Dec	96.5 mm (3.8 in)	21 December 2018

Period of Record Coverage

1943 to 2017

9 years of record at Hillsborough Rvr Sp, 1943 to 2017. 8 years have data for under 90 percent of days and are left out of rankings: 1943, 1944, 1946, 1966, 1967, 1970, 2011, 2017.

Latest Records

Latest records at Hillsborough Rvr Sp
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 2026	Hillsborough Rvr Sp, US	daily rain	68.6 mm (2.7 in)	19.3 mm (0.8 in)	11 years	22 of 100 (Routine)
7 April 2026	Hillsborough Rvr Sp, US	daily rain	34.8 mm (1.4 in)	6.9 mm (0.27 in)	72 years	33 of 100 (Routine)
8 December 2025	Hillsborough Rvr Sp, US	daily rain	60.5 mm (2.4 in)	11.0 mm (0.4 in)	36 years	24 of 100 (Routine)
7 December 2025	Hillsborough Rvr Sp, US	daily rain	43.2 mm (1.7 in)	6.4 mm (0.25 in)	75 years	33 of 100 (Routine)
8 May 2025	Hillsborough Rvr Sp, US	daily rain	42.2 mm (1.7 in)	3.3 mm (0.13 in)	68 years	29 of 100 (Routine)
25 February 2025	Hillsborough Rvr Sp, US	daily rain	29.2 mm (1.1 in)	5.1 mm (0.20 in)	33 years	20 of 100 (Routine)
29 November 2024	Hillsborough Rvr Sp, US	daily rain	10.9 mm (0.4 in)	2.0 mm (0.08 in)	27 years	17 of 100 (Routine)
10 October 2024	Hillsborough Rvr Sp, US	all-time rain	325.1 mm (12.8 in)	19.3 mm (0.8 in)	79 years	62 of 100 (Major)
5 August 2024	Hillsborough Rvr Sp, US	daily rain	130.8 mm (5.1 in)	36.3 mm (1.4 in)	43 years	40 of 100 (Notable)
4 April 2024	Hillsborough Rvr Sp, US	daily rain	28.7 mm (1.1 in)	7.1 mm (0.28 in)	11 years	15 of 100 (Routine)
18 February 2024	Hillsborough Rvr Sp, US	daily rain	37.1 mm (1.5 in)	2.0 mm (0.08 in)	45 years	22 of 100 (Routine)
17 December 2023	Hillsborough Rvr Sp, US	daily rain	54.6 mm (2.1 in)	8.9 mm (0.35 in)	48 years	27 of 100 (Routine)
17 November 2023	Hillsborough Rvr Sp, US	daily rain	35.6 mm (1.4 in)	7.7 mm (0.30 in)	37 years	22 of 100 (Routine)
31 August 2023	Hillsborough Rvr Sp, US	daily rain	47.5 mm (1.9 in)	0.3 mm (0.01 in)	6 years	10 of 100 (Routine)
3 June 2023	Hillsborough Rvr Sp, US	daily rain	87.1 mm (3.4 in)	10.9 mm (0.4 in)	16 years	17 of 100 (Routine)
2 June 2023	Hillsborough Rvr Sp, US	daily rain	55.9 mm (2.2 in)	14.0 mm (0.6 in)	60 years	32 of 100 (Routine)
26 May 2023	Hillsborough Rvr Sp, US	daily rain	45.2 mm (1.8 in)	0.5 mm (0.02 in)	60 years	26 of 100 (Routine)
6 January 2023	Hillsborough Rvr Sp, US	daily rain	24.6 mm (1.0 in)	6.1 mm (0.24 in)	23 years	18 of 100 (Routine)
16 December 2022	Hillsborough Rvr Sp, US	daily rain	44.5 mm (1.8 in)	14.8 mm (0.6 in)	44 years	29 of 100 (Routine)
21 November 2022	Hillsborough Rvr Sp, US	daily rain	15.5 mm (0.6 in)	5.3 mm (0.21 in)	45 years	20 of 100 (Routine)

Extremes by Year

1943 to 2026

Yearly extremes at Hillsborough Rvr Sp: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	1945	33.3 C (91.9 F)	9
Coldest night (TNn)	-5.6 C (21.9 F)	1943	-3.9 C (25.0 F)	7
Wettest day (Rx1day)	325.1 mm (12.8 in)	2024	87.1 mm (3.4 in)	83
Wettest five days (Rx5day)	484.4 mm (19.1 in)	1945	149.2 mm (5.9 in)	83
Longest dry spell (CDD)	52 days	1963	26 days	83

Hottest day (TXx)

The hottest day of the year at Hillsborough Rvr Sp, 1943 to 2026. The record is 40.0 C (104.0 F) in 1945, marked on the chart; the median year is 33.3 C (91.9 F).

Hottest day (TXx) at Hillsborough Rvr Sp by year
Year	Hottest day (TXx)
1943	36.7 C (98.1 F)
1944	36.7 C (98.1 F)
1945	40.0 C (104.0 F)
1946	27.2 C (81.0 F)
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	32.8 C (91.0 F)
1967	30.0 C (86.0 F)
1968	n/a
1969	n/a
1970	33.3 C (91.9 F)
1971	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	38.9 C (102.0 F)
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	28.9 C (84.0 F)
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Hillsborough Rvr Sp, 1943 to 2026. The record is -5.6 C (21.9 F) in 1943, marked on the chart; the median year is -3.9 C (25.0 F).

Coldest night (TNn) at Hillsborough Rvr Sp by year
Year	Coldest night (TNn)
1943	-5.6 C (21.9 F)
1944	-5.6 C (21.9 F)
1945	-3.9 C (25.0 F)
1946	1.1 C (34.0 F)
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	6.7 C (44.1 F)
1967	-3.9 C (25.0 F)
1968	n/a
1969	n/a
1970	2.2 C (36.0 F)
1971	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Hillsborough Rvr Sp, 1943 to 2026. The record is 325.1 mm (12.8 in) in 2024, marked on the chart; the median year is 87.1 mm (3.4 in).

Wettest day (Rx1day) at Hillsborough Rvr Sp by year
Year	Wettest day (Rx1day)
1943	45.0 mm (1.8 in)
1944	132.1 mm (5.2 in)
1945	305.8 mm (12.0 in)
1946	75.9 mm (3.0 in)
1947	193.8 mm (7.6 in)
1948	101.6 mm (4.0 in)
1949	101.6 mm (4.0 in)
1950	116.8 mm (4.6 in)
1951	82.3 mm (3.2 in)
1952	72.4 mm (2.9 in)
1953	87.9 mm (3.5 in)
1954	62.7 mm (2.5 in)
1955	66.0 mm (2.6 in)
1956	108.7 mm (4.3 in)
1957	102.9 mm (4.1 in)
1958	81.3 mm (3.2 in)
1959	84.1 mm (3.3 in)
1960	169.2 mm (6.7 in)
1961	73.7 mm (2.9 in)
1962	72.1 mm (2.8 in)
1963	110.5 mm (4.4 in)
1964	88.9 mm (3.5 in)
1965	62.2 mm (2.4 in)
1966	122.2 mm (4.8 in)
1967	160.5 mm (6.3 in)
1968	88.4 mm (3.5 in)
1969	79.0 mm (3.1 in)
1970	80.0 mm (3.1 in)
1971	113.3 mm (4.5 in)
1973	99.1 mm (3.9 in)
1974	98.8 mm (3.9 in)
1975	57.4 mm (2.3 in)
1976	83.8 mm (3.3 in)
1977	62.7 mm (2.5 in)
1978	66.0 mm (2.6 in)
1979	38.1 mm (1.5 in)
1980	82.6 mm (3.3 in)
1981	94.5 mm (3.7 in)
1982	77.2 mm (3.0 in)
1983	96.3 mm (3.8 in)
1984	66.0 mm (2.6 in)
1985	96.5 mm (3.8 in)
1986	69.3 mm (2.7 in)
1987	72.6 mm (2.9 in)
1988	161.0 mm (6.3 in)
1989	66.0 mm (2.6 in)
1990	69.9 mm (2.8 in)
1991	62.2 mm (2.4 in)
1992	83.1 mm (3.3 in)
1993	48.3 mm (1.9 in)
1994	69.6 mm (2.7 in)
1995	95.5 mm (3.8 in)
1996	132.1 mm (5.2 in)
1997	147.3 mm (5.8 in)
1998	70.6 mm (2.8 in)
1999	66.8 mm (2.6 in)
2000	73.7 mm (2.9 in)
2001	157.5 mm (6.2 in)
2002	82.6 mm (3.3 in)
2003	109.2 mm (4.3 in)
2004	177.8 mm (7.0 in)
2005	63.5 mm (2.5 in)
2006	103.4 mm (4.1 in)
2007	76.2 mm (3.0 in)
2008	53.3 mm (2.1 in)
2009	95.3 mm (3.8 in)
2010	144.8 mm (5.7 in)
2011	119.4 mm (4.7 in)
2012	122.2 mm (4.8 in)
2013	78.7 mm (3.1 in)
2014	113.8 mm (4.5 in)
2015	77.5 mm (3.1 in)
2016	116.3 mm (4.6 in)
2017	180.3 mm (7.1 in)
2018	96.5 mm (3.8 in)
2019	144.8 mm (5.7 in)
2020	139.7 mm (5.5 in)
2021	76.5 mm (3.0 in)
2022	92.5 mm (3.6 in)
2023	87.1 mm (3.4 in)
2024	325.1 mm (12.8 in)
2025	60.5 mm (2.4 in)
2026	77.0 mm (3.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hillsborough Rvr Sp, 1943 to 2026. The record is 484.4 mm (19.1 in) in 1945, marked on the chart; the median year is 149.2 mm (5.9 in).

Wettest five days (Rx5day) at Hillsborough Rvr Sp by year
Year	Wettest five days (Rx5day)
1943	111.1 mm (4.4 in)
1944	149.2 mm (5.9 in)
1945	484.4 mm (19.1 in)
1946	87.8 mm (3.5 in)
1947	255.3 mm (10.1 in)
1948	140.2 mm (5.5 in)
1949	190.5 mm (7.5 in)
1950	264.2 mm (10.4 in)
1951	127.5 mm (5.0 in)
1952	119.9 mm (4.7 in)
1953	131.0 mm (5.2 in)
1954	81.2 mm (3.2 in)
1955	114.9 mm (4.5 in)
1956	146.3 mm (5.8 in)
1957	174.2 mm (6.9 in)
1958	134.5 mm (5.3 in)
1959	185.8 mm (7.3 in)
1960	286.2 mm (11.3 in)
1961	155.0 mm (6.1 in)
1962	131.1 mm (5.2 in)
1963	136.2 mm (5.4 in)
1964	157.0 mm (6.2 in)
1965	134.6 mm (5.3 in)
1966	188.4 mm (7.4 in)
1967	282.2 mm (11.1 in)
1968	153.5 mm (6.0 in)
1969	106.9 mm (4.2 in)
1970	142.8 mm (5.6 in)
1971	148.6 mm (5.9 in)
1973	99.1 mm (3.9 in)
1974	160.1 mm (6.3 in)
1975	75.0 mm (3.0 in)
1976	200.7 mm (7.9 in)
1977	149.9 mm (5.9 in)
1978	163.3 mm (6.4 in)
1979	77.4 mm (3.0 in)
1980	105.5 mm (4.2 in)
1981	110.8 mm (4.4 in)
1982	109.8 mm (4.3 in)
1983	159.8 mm (6.3 in)
1984	133.5 mm (5.3 in)
1985	253.0 mm (10.0 in)
1986	124.9 mm (4.9 in)
1987	244.6 mm (9.6 in)
1988	209.1 mm (8.2 in)
1989	107.9 mm (4.2 in)
1990	114.6 mm (4.5 in)
1991	84.8 mm (3.3 in)
1992	139.4 mm (5.5 in)
1993	95.8 mm (3.8 in)
1994	118.6 mm (4.7 in)
1995	143.1 mm (5.6 in)
1996	263.4 mm (10.4 in)
1997	254.8 mm (10.0 in)
1998	160.0 mm (6.3 in)
1999	119.4 mm (4.7 in)
2000	122.4 mm (4.8 in)
2001	180.9 mm (7.1 in)
2002	157.7 mm (6.2 in)
2003	199.7 mm (7.9 in)
2004	227.3 mm (8.9 in)
2005	113.5 mm (4.5 in)
2006	110.3 mm (4.3 in)
2007	116.1 mm (4.6 in)
2008	93.5 mm (3.7 in)
2009	204.8 mm (8.1 in)
2010	149.9 mm (5.9 in)
2011	185.4 mm (7.3 in)
2012	201.8 mm (7.9 in)
2013	195.5 mm (7.7 in)
2014	115.1 mm (4.5 in)
2015	166.7 mm (6.6 in)
2016	164.8 mm (6.5 in)
2017	134.3 mm (5.3 in)
2018	149.8 mm (5.9 in)
2019	176.1 mm (6.9 in)
2020	188.4 mm (7.4 in)
2021	112.9 mm (4.4 in)
2022	178.6 mm (7.0 in)
2023	191.0 mm (7.5 in)
2024	354.6 mm (14.0 in)
2025	153.4 mm (6.0 in)
2026	110.6 mm (4.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hillsborough Rvr Sp, 1943 to 2026. The record is 52 days in 1963, marked on the chart; the median year is 26 days.

Longest dry spell (CDD) at Hillsborough Rvr Sp by year
Year	Longest dry spell (CDD)
1943	51 days
1944	20 days
1945	29 days
1946	30 days
1947	22 days
1948	38 days
1949	31 days
1950	46 days
1951	22 days
1952	26 days
1953	18 days
1954	26 days
1955	39 days
1956	41 days
1957	20 days
1958	25 days
1959	20 days
1960	40 days
1961	25 days
1962	24 days
1963	52 days
1964	40 days
1965	25 days
1966	23 days
1967	36 days
1968	34 days
1969	15 days
1970	40 days
1971	21 days
1973	17 days
1974	35 days
1975	18 days
1976	23 days
1977	29 days
1978	34 days
1979	25 days
1980	24 days
1981	32 days
1982	27 days
1983	30 days
1984	28 days
1985	22 days
1986	23 days
1987	19 days
1988	30 days
1989	29 days
1990	29 days
1991	28 days
1992	29 days
1993	27 days
1994	20 days
1995	21 days
1996	25 days
1997	25 days
1998	30 days
1999	27 days
2000	28 days
2001	29 days
2002	26 days
2003	25 days
2004	25 days
2005	33 days
2006	41 days
2007	25 days
2008	29 days
2009	26 days
2010	35 days
2011	32 days
2012	33 days
2013	17 days
2014	24 days
2015	25 days
2016	24 days
2017	25 days
2018	21 days
2019	15 days
2020	38 days
2021	22 days
2022	22 days
2023	32 days
2024	21 days
2025	23 days
2026	23 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

61 years, 1944 to 2025

A day with at least 90.0 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 306.7 mm (12.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Hillsborough Rvr Sp: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	90.0 mm (3.5 in)
5 years	124.3 mm (4.9 in)
10 years	154.3 mm (6.1 in)
25 years	203.3 mm (8.0 in)
50 years	249.8 mm (9.8 in)
100 years	306.7 mm (12.1 in)	Longer than the 61 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, 61 years of values from 1944 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: 325.1 mm (12.8 in) in 2024; 305.8 mm (12.0 in) in 1945; 177.8 mm (7.0 in) in 2004.

Download the Data

Data for Hillsborough Rvr Sp standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hillsborough Rvr Sp 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).