Hart Lake Weather Records (USC00083840)

Record envelope, standing records and threshold days for Hart Lake (USC00083840), Florida, United States, with 38 years of record.

Key Facts for Hart Lake

Hart Lake (USC00083840) is a weather station in Florida, United States at 28.38 latitude and -81.18 longitude, 18 m (59 ft) above sea level.
The station reports from 1942 to 1979, 38 years of record.
122 records set at Hart Lake still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Hart Lake set a daily record precipitation of 23.9 mm (0.9 in) on 25 April 1979.

About the Station

Location: Florida, United States, 28.38 latitude, -81.18 longitude.
Elevation: 18 m (59 ft).
Period of record: 1942 to 1979, 38 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 Hart Lake. 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 Hart Lake, 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
Apr	n/a	n/a	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	36.7 C (98.1 F)	17.8 C (64.0 F)	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

122 standing records

122 records at Hart Lake still stand. 1979 holds the most, with 122.

Wettest Day of Each Month

Jun: 262.9 mm (10.4 in)

The wettest day on record for each calendar month at Hart Lake. The most was 262.9 mm (10.4 in) on 23 June 1945.

Record daily precipitation for each month at Hart Lake
Month	Record daily precipitation (mm)	Date
Jan	80.8 mm (3.2 in)	23 January 1948
Feb	69.3 mm (2.7 in)	24 February 1965
Mar	165.1 mm (6.5 in)	18 March 1960
Apr	115.6 mm (4.6 in)	13 April 1953
May	106.4 mm (4.2 in)	22 May 1943
Jun	262.9 mm (10.4 in)	23 June 1945
Jul	77.5 mm (3.1 in)	25 July 1951
Aug	124.5 mm (4.9 in)	28 August 1949
Sep	168.9 mm (6.6 in)	16 September 1945
Oct	165.6 mm (6.5 in)	15 October 1956
Nov	149.6 mm (5.9 in)	10 November 1963
Dec	124.0 mm (4.9 in)	26 December 1949

Period of Record Coverage

1979 to 1979

1 years of record at Hart Lake, 1979 to 1979. 1 years have data for under 90 percent of days and are left out of rankings: 1979.

Latest Records

Latest records at Hart Lake
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
25 April 1979	Hart Lake, US	daily rain	23.9 mm (0.9 in)	1.0 mm (0.04 in)	8 years	5 of 100 (Routine)
24 March 1979	Hart Lake, US	daily rain	11.7 mm (0.5 in)	9.7 mm (0.38 in)	16 years	13 of 100 (Routine)
7 March 1979	Hart Lake, US	daily rain	31.8 mm (1.3 in)	4.6 mm (0.18 in)	30 years	14 of 100 (Routine)
13 January 1979	Hart Lake, US	daily rain	37.3 mm (1.5 in)	6.1 mm (0.24 in)	31 years	17 of 100 (Routine)
12 January 1979	Hart Lake, US	daily rain	51.3 mm (2.0 in)	9.9 mm (0.39 in)	15 years	15 of 100 (Routine)
3 January 1979	Hart Lake, US	daily rain	31.8 mm (1.3 in)	12.0 mm (0.5 in)	33 years	23 of 100 (Routine)
29 December 1978	Hart Lake, US	daily rain	30.7 mm (1.2 in)	22.3 mm (0.9 in)	29 years	27 of 100 (Routine)
28 December 1978	Hart Lake, US	daily rain	50.3 mm (2.0 in)	28.2 mm (1.1 in)	32 years	32 of 100 (Routine)
13 October 1978	Hart Lake, US	daily rain	20.6 mm (0.8 in)	14.8 mm (0.6 in)	0 years	12 of 100 (Routine)
4 July 1978	Hart Lake, US	daily rain	51.1 mm (2.0 in)	7.9 mm (0.31 in)	12 years	11 of 100 (Routine)
22 June 1978	Hart Lake, US	daily rain	41.1 mm (1.6 in)	7.1 mm (0.28 in)	3 years	6 of 100 (Routine)
18 May 1978	Hart Lake, US	daily rain (Tie)	17.8 mm (0.7 in)	tie	28 years	2 of 100 (Routine)
5 May 1978	Hart Lake, US	daily rain	31.5 mm (1.2 in)	2.5 mm (0.10 in)	9 years	6 of 100 (Routine)
4 May 1978	Hart Lake, US	daily rain	14.0 mm (0.6 in)	4.3 mm (0.17 in)	15 years	10 of 100 (Routine)
9 January 1978	Hart Lake, US	daily rain	17.3 mm (0.7 in)	7.4 mm (0.29 in)	34 years	19 of 100 (Routine)
22 December 1977	Hart Lake, US	daily rain	15.2 mm (0.6 in)	2.5 mm (0.10 in)	8 years	6 of 100 (Routine)
30 November 1977	Hart Lake, US	daily rain	18.0 mm (0.7 in)	4.0 mm (0.16 in)	0 years	5 of 100 (Routine)
24 November 1977	Hart Lake, US	daily rain (Tie)	3.0 mm (0.12 in)	tie	16 years	1 of 100 (Routine)
5 November 1977	Hart Lake, US	daily rain	3.8 mm (0.15 in)	1.8 mm (0.07 in)	20 years	9 of 100 (Routine)
25 October 1977	Hart Lake, US	daily rain	18.0 mm (0.7 in)	9.1 mm (0.36 in)	20 years	14 of 100 (Routine)

Extremes by Year

1942 to 1979

Yearly extremes at Hart Lake: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.7 C (98.1 F)	1979	36.7 C (98.1 F)	1
Coldest night (TNn)	17.8 C (64.0 F)	1979	17.8 C (64.0 F)	1
Wettest day (Rx1day)	262.9 mm (10.4 in)	1945	71.5 mm (2.8 in)	38
Wettest five days (Rx5day)	372.1 mm (14.6 in)	1968	132.6 mm (5.2 in)	38
Longest dry spell (CDD)	50 days	1974	26 days	38

Hottest day (TXx)

The hottest day of the year at Hart Lake, 1942 to 1979. The record is 36.7 C (98.1 F) in 1979, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Hart Lake by year
Year	Hottest day (TXx)
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
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Hart Lake, 1942 to 1979. The record is 17.8 C (64.0 F) in 1979, marked on the chart; the median year is 17.8 C (64.0 F).

Coldest night (TNn) at Hart Lake by year
Year	Coldest night (TNn)
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
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	17.8 C (64.0 F)

Wettest day (Rx1day)

The wettest day of the year at Hart Lake, 1942 to 1979. The record is 262.9 mm (10.4 in) in 1945, marked on the chart; the median year is 71.5 mm (2.8 in).

Wettest day (Rx1day) at Hart Lake by year
Year	Wettest day (Rx1day)
1942	41.1 mm (1.6 in)
1943	106.4 mm (4.2 in)
1944	128.8 mm (5.1 in)
1945	262.9 mm (10.4 in)
1946	63.8 mm (2.5 in)
1947	90.2 mm (3.6 in)
1948	101.6 mm (4.0 in)
1949	124.5 mm (4.9 in)
1950	54.9 mm (2.2 in)
1951	101.6 mm (4.0 in)
1952	52.8 mm (2.1 in)
1953	115.6 mm (4.6 in)
1954	108.7 mm (4.3 in)
1955	50.8 mm (2.0 in)
1956	165.6 mm (6.5 in)
1957	64.0 mm (2.5 in)
1958	67.3 mm (2.6 in)
1959	130.0 mm (5.1 in)
1960	165.1 mm (6.5 in)
1961	73.7 mm (2.9 in)
1962	65.0 mm (2.6 in)
1963	149.6 mm (5.9 in)
1964	92.7 mm (3.6 in)
1965	69.3 mm (2.7 in)
1966	67.6 mm (2.7 in)
1967	59.7 mm (2.4 in)
1968	106.7 mm (4.2 in)
1969	68.6 mm (2.7 in)
1970	48.3 mm (1.9 in)
1971	50.3 mm (2.0 in)
1972	77.2 mm (3.0 in)
1973	82.6 mm (3.3 in)
1974	88.4 mm (3.5 in)
1975	57.2 mm (2.3 in)
1976	64.0 mm (2.5 in)
1977	58.7 mm (2.3 in)
1978	54.4 mm (2.1 in)
1979	51.3 mm (2.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Hart Lake, 1942 to 1979. The record is 372.1 mm (14.6 in) in 1968, marked on the chart; the median year is 132.6 mm (5.2 in).

Wettest five days (Rx5day) at Hart Lake by year
Year	Wettest five days (Rx5day)
1942	52.4 mm (2.1 in)
1943	101.4 mm (4.0 in)
1944	160.8 mm (6.3 in)
1945	196.4 mm (7.7 in)
1946	69.9 mm (2.8 in)
1947	148.7 mm (5.9 in)
1948	176.8 mm (7.0 in)
1949	162.1 mm (6.4 in)
1950	105.1 mm (4.1 in)
1951	146.1 mm (5.8 in)
1952	90.2 mm (3.6 in)
1953	193.6 mm (7.6 in)
1954	205.2 mm (8.1 in)
1955	100.4 mm (4.0 in)
1956	322.9 mm (12.7 in)
1957	172.0 mm (6.8 in)
1958	83.7 mm (3.3 in)
1959	189.8 mm (7.5 in)
1960	304.2 mm (12.0 in)
1961	152.9 mm (6.0 in)
1962	95.5 mm (3.8 in)
1963	185.2 mm (7.3 in)
1964	137.4 mm (5.4 in)
1965	127.2 mm (5.0 in)
1966	122.2 mm (4.8 in)
1967	136.6 mm (5.4 in)
1968	372.1 mm (14.6 in)
1969	128.7 mm (5.1 in)
1970	94.0 mm (3.7 in)
1971	119.7 mm (4.7 in)
1972	121.9 mm (4.8 in)
1973	92.8 mm (3.7 in)
1974	246.6 mm (9.7 in)
1975	119.9 mm (4.7 in)
1976	83.3 mm (3.3 in)
1977	109.4 mm (4.3 in)
1978	148.1 mm (5.8 in)
1979	89.4 mm (3.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Hart Lake, 1942 to 1979. The record is 50 days in 1974, marked on the chart; the median year is 26 days.

Longest dry spell (CDD) at Hart Lake by year
Year	Longest dry spell (CDD)
1942	31 days
1943	35 days
1944	21 days
1945	22 days
1946	1 day
1947	19 days
1948	21 days
1949	36 days
1950	21 days
1951	31 days
1952	27 days
1953	27 days
1954	43 days
1955	33 days
1956	38 days
1957	18 days
1958	24 days
1959	26 days
1960	25 days
1961	21 days
1962	21 days
1963	17 days
1964	28 days
1965	33 days
1966	26 days
1967	38 days
1968	30 days
1969	21 days
1970	40 days
1971	25 days
1972	24 days
1973	37 days
1974	50 days
1975	24 days
1976	23 days
1977	43 days
1978	22 days
1979	31 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.

Download the Data

Data for Hart Lake standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Hart Lake 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).