Mayo Weather Records (USC00085539)

Record envelope, standing records and threshold days for Mayo (USC00085539), Florida, United States, with 78 years of record.

Key Facts for Mayo

Mayo (USC00085539) is a weather station in Florida, United States at 30.06 latitude and -83.17 longitude, 25 m (83 ft) above sea level.
The station reports from 1949 to 2026, 78 years of record.
1,464 records set at Mayo still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mayo tied a daily record high minimum temperature of 23.3 C (73.9 F) on 5 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Florida, United States, 30.06 latitude, -83.17 longitude.
Elevation: 25 m (83 ft).
Period of record: 1949 to 2026, 78 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

19 days at or beyond a record

The band shows the record high and record low for each calendar day at Mayo. The lines show the 2026 daily maximum and minimum. 19 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Mayo, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.1 C (88.0 F)	-13.9 C (7.0 F)	28.3 C (82.9 F)	-11.1 C (12.0 F)
Feb	33.9 C (93.0 F)	-11.1 C (12.0 F)	28.9 C (84.0 F)	-11.1 C (12.0 F)
Mar	33.3 C (91.9 F)	-7.2 C (19.0 F)	32.2 C (90.0 F)	-2.8 C (27.0 F)
Apr	35.6 C (96.1 F)	-0.6 C (30.9 F)	32.2 C (90.0 F)	4.4 C (39.9 F)
May	38.3 C (100.9 F)	5.0 C (41.0 F)	34.4 C (93.9 F)	7.8 C (46.0 F)
Jun	40.0 C (104.0 F)	8.3 C (46.9 F)	36.7 C (98.1 F)	12.8 C (55.0 F)
Jul	39.4 C (102.9 F)	13.3 C (55.9 F)	37.2 C (99.0 F)	19.4 C (66.9 F)
Aug	39.4 C (102.9 F)	14.4 C (57.9 F)	36.7 C (98.1 F)	20.6 C (69.1 F)
Sep	37.2 C (99.0 F)	4.4 C (39.9 F)	34.4 C (93.9 F)	11.1 C (52.0 F)
Oct	35.6 C (96.1 F)	-2.8 C (27.0 F)	32.8 C (91.0 F)	22.2 C (72.0 F)
Nov	33.3 C (91.9 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	31.1 C (88.0 F)	-12.2 C (10.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Mayo still stand. 1998 holds the most, with 57.

Standing records at Mayo by the year they were set
Year set	Standing records
1949	3
1950	33
1951	16
1952	18
1953	28
1954	30
1955	25
1956	21
1957	29
1958	19
1959	18
1960	20
1961	13
1962	20
1963	12
1964	18
1965	10
1966	22
1967	15
1968	26
1969	8
1970	8
1971	16
1972	20
1973	13
1974	27
1975	19
1976	13
1977	19
1978	19
1979	18
1980	19
1981	27
1982	18
1983	18
1984	22
1985	26
1986	32
1987	15
1988	17
1989	30
1990	17
1991	19
1992	23
1993	23
1994	11
1995	15
1996	17
1997	20
1998	57
1999	28
2000	22
2001	14
2002	26
2003	10
2004	13
2005	20
2006	10
2007	16
2008	9
2009	17
2010	19
2011	16
2012	22
2013	16
2014	16
2015	30
2016	10
2017	20
2018	14
2019	14
2020	13
2021	16
2022	9
2023	11
2024	19
2025	17
2026	15

All-Time Record Progression

5 new records

5 all-time records were set at Mayo between 9 July 1981 and 24 December 1989. Each dot is a new record.

When Mayo set new all-time records
Date	Kind	Detail
1981-07-09	Record high maximum temperature	Record high maximum temperature 39.4 C (102.9 F)
1983-12-26	Record low maximum temperature	Record low maximum temperature -1.1 C (30.0 F)
1985-01-21	Record low minimum temperature	Record low minimum temperature -13.9 C (7.0 F)
1985-06-05	Record high maximum temperature	Record high maximum temperature 40.0 C (104.0 F)
1989-12-24	Record low maximum temperature	Record low maximum temperature -3.9 C (25.0 F)

Wettest Day of Each Month

Sep: 371.3 mm (14.6 in)

The wettest day on record for each calendar month at Mayo. The most was 371.3 mm (14.6 in) on 12 September 1964.

Record daily precipitation for each month at Mayo
Month	Record daily precipitation (mm)	Date
Jan	117.9 mm (4.6 in)	22 January 2010
Feb	107.7 mm (4.2 in)	17 February 1998
Mar	181.6 mm (7.1 in)	3 March 1991
Apr	158.0 mm (6.2 in)	10 April 1958
May	208.5 mm (8.2 in)	29 May 2012
Jun	226.6 mm (8.9 in)	26 June 2012
Jul	142.2 mm (5.6 in)	26 July 1980
Aug	218.4 mm (8.6 in)	8 August 1994
Sep	371.3 mm (14.6 in)	12 September 1964
Oct	139.7 mm (5.5 in)	8 October 1996
Nov	98.6 mm (3.9 in)	15 November 2019
Dec	119.4 mm (4.7 in)	17 December 2023

Period of Record Coverage

1949 to 2026

78 years of record at Mayo, 1949 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1949, 1969, 1970, 1971, 2008, 2026.

Days with data per year at Mayo
Year	Days with data	Share of year	Complete
1949	149	41%	No
1950	360	99%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	364	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	363	99%	Yes
1959	356	98%	Yes
1960	366	100%	Yes
1961	363	99%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	365	100%	Yes
1965	335	92%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	243	67%	No
1970	165	45%	No
1971	274	75%	No
1972	366	100%	Yes
1973	335	92%	Yes
1974	356	98%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	341	93%	Yes
1978	364	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	364	100%	Yes
1982	358	98%	Yes
1983	365	100%	Yes
1984	364	99%	Yes
1985	363	99%	Yes
1986	364	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	362	99%	Yes
1990	364	100%	Yes
1991	364	100%	Yes
1992	365	100%	Yes
1993	364	100%	Yes
1994	364	100%	Yes
1995	365	100%	Yes
1996	364	99%	Yes
1997	364	100%	Yes
1998	364	100%	Yes
1999	334	92%	Yes
2000	363	99%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	364	99%	Yes
2005	356	98%	Yes
2006	364	100%	Yes
2007	364	100%	Yes
2008	320	87%	No
2009	364	100%	Yes
2010	362	99%	Yes
2011	361	99%	Yes
2012	366	100%	Yes
2013	333	91%	Yes
2014	360	99%	Yes
2015	365	100%	Yes
2016	364	99%	Yes
2017	337	92%	Yes
2018	362	99%	Yes
2019	358	98%	Yes
2020	364	99%	Yes
2021	339	93%	Yes
2022	333	91%	Yes
2023	347	95%	Yes
2024	351	96%	Yes
2025	358	98%	Yes
2026	256	70%	No

Latest Records

Latest records at Mayo
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
5 October 2026	Mayo, US	daily high min (Tie, Provisional)	23.3 C (73.9 F)	tie	31 years	4 of 100 (Routine)
27 September 2026	Mayo, US	daily low min (Provisional)	11.1 C (52.0 F)	0.6 C (1.1 F)	51 years	24 of 100 (Routine)
9 September 2026	Mayo, US	daily high min (Tie, Provisional)	23.9 C (75.0 F)	tie	13 years	2 of 100 (Routine)
7 September 2026	Mayo, US	daily rain (Provisional)	84.1 mm (3.3 in)	1.5 mm (0.06 in)	21 years	13 of 100 (Routine)
24 August 2026	Mayo, US	daily high min (Provisional)	24.4 C (75.9 F)	0.5 C (0.9 F)	36 years	21 of 100 (Routine)
21 August 2026	Mayo, US	daily rain (Provisional)	64.5 mm (2.5 in)	22.8 mm (0.9 in)	41 years	31 of 100 (Routine)
20 August 2026	Mayo, US	daily high max (Tie, Provisional)	36.7 C (98.1 F)	tie	72 years	7 of 100 (Routine)
18 August 2026	Mayo, US	daily high min (Provisional)	25.6 C (78.1 F)	1.2 C (2.2 F)	8 years	17 of 100 (Routine)
17 August 2026	Mayo, US	daily high min (Provisional)	25.6 C (78.1 F)	0.6 C (1.1 F)	68 years	31 of 100 (Routine)
31 July 2026	Mayo, US	daily high min	25.6 C (78.1 F)	0.6 C (1.1 F)	40 years	23 of 100 (Routine)
28 July 2026	Mayo, US	daily high max (Tie)	36.7 C (98.1 F)	tie	27 years	3 of 100 (Routine)
27 July 2026	Mayo, US	daily high min	25.0 C (77.0 F)	0.6 C (1.1 F)	15 years	15 of 100 (Routine)
27 July 2026	Mayo, US	daily high max	36.7 C (98.1 F)	0.6 C (1.1 F)	16 years	13 of 100 (Routine)
26 July 2026	Mayo, US	daily high max (Tie)	36.1 C (97.0 F)	tie	49 years	5 of 100 (Routine)
12 July 2026	Mayo, US	daily high max (Tie)	37.2 C (99.0 F)	tie	33 years	4 of 100 (Routine)
6 July 2026	Mayo, US	daily high min (Tie)	24.4 C (75.9 F)	tie	1 year	1 of 100 (Routine)
19 June 2026	Mayo, US	daily high min	23.9 C (75.0 F)	0.6 C (1.1 F)	73 years	31 of 100 (Routine)
4 June 2026	Mayo, US	daily low min (Tie)	12.8 C (55.0 F)	tie	60 years	6 of 100 (Routine)
30 May 2026	Mayo, US	daily high min (Tie)	22.8 C (73.0 F)	tie	44 years	5 of 100 (Routine)
27 May 2026	Mayo, US	daily high min (Tie)	22.2 C (72.0 F)	tie	72 years	7 of 100 (Routine)

Climate Trend

57 complete years, 1950 to 2025

One stripe for each of 57 complete years at Mayo, 1950 to 2025. Blue stripes are years cooler than the station's own mean of 20.2 C (68.4 F); red stripes are warmer. The coolest year was 2010, at 18.8 C (65.8 F), and the warmest was 1998, at 21.8 C (71.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Mayo as warming stripes, 1950 to 2025
Year	Annual mean temperature	Difference from the station mean
1950	20.3 C	+0.06 C
1951	20.5 C	+0.26 C
1952	20.4 C	+0.24 C
1953	20.7 C	+0.53 C
1954	20.6 C	+0.41 C
1955	20.6 C	+0.41 C
1956	20.3 C	+0.07 C
1957	20.8 C	+0.60 C
1958	19.5 C	-0.73 C
1959	20.5 C	+0.33 C
1960	19.7 C	-0.53 C
1961	20.2 C	-0.01 C
1962	20.1 C	-0.14 C
1963	19.4 C	-0.80 C
1964	19.9 C	-0.32 C
1966	19.2 C	-0.98 C
1967	19.9 C	-0.33 C
1968	19.3 C	-0.92 C
1972	20.2 C	-0.02 C
1974	20.1 C	-0.07 C
1975	20.9 C	+0.70 C
1976	19.4 C	-0.76 C
1978	19.6 C	-0.59 C
1979	19.6 C	-0.59 C
1980	19.5 C	-0.67 C
1981	19.2 C	-0.98 C
1982	20.9 C	+0.71 C
1988	19.3 C	-0.89 C
1989	20.2 C	+0.04 C
1990	21.3 C	+1.06 C
1991	20.7 C	+0.51 C
1992	19.8 C	-0.39 C
1993	19.9 C	-0.30 C
1994	20.6 C	+0.42 C
1995	20.1 C	-0.07 C
1997	20.6 C	+0.37 C
1998	21.8 C	+1.55 C
2000	19.6 C	-0.56 C
2001	20.1 C	-0.07 C
2002	20.3 C	+0.07 C
2003	19.8 C	-0.45 C
2004	19.8 C	-0.37 C
2005	20.0 C	-0.23 C
2006	20.2 C	+0.01 C
2007	20.4 C	+0.21 C
2009	19.7 C	-0.53 C
2010	18.8 C	-1.45 C
2011	20.4 C	+0.20 C
2012	21.2 C	+0.97 C
2014	19.5 C	-0.66 C
2015	21.2 C	+1.02 C
2016	20.8 C	+0.57 C
2018	20.7 C	+0.48 C
2019	21.1 C	+0.91 C
2020	20.9 C	+0.65 C
2023	21.0 C	+0.82 C
2025	20.4 C	+0.22 C

The fitted trend in annual mean temperature here over 1950 to 2025 is 0.05 C (-0.02 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.10 F (-0.04 to 0.23) per decade. The slope is a straight line fitted to 57 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Mayo
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.05 C (-0.02 to 0.13) per decade	0.10 F (-0.04 to 0.23) per decade	1950 to 2025	57	Not clearly different from zero
Mean daily maximum	0.07 C (-0.01 to 0.14) per decade	0.12 F (-0.01 to 0.25) per decade	1950 to 2025	57	Not clearly different from zero
Mean daily minimum	0.04 C (-0.05 to 0.13) per decade	0.1 F (-0.1 to 0.2) per decade	1950 to 2025	57	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1949 to 2026

Yearly extremes at Mayo: 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)	1985	36.7 C (98.1 F)	78
Coldest night (TNn)	-13.9 C (7.0 F)	1985	-6.7 C (19.9 F)	78
Wettest day (Rx1day)	371.3 mm (14.6 in)	1964	99.1 mm (3.9 in)	78
Wettest five days (Rx5day)	602.7 mm (23.7 in)	1964	153.4 mm (6.0 in)	78
Longest dry spell (CDD)	41 days	2022	25 days	78

Hottest day (TXx)

The hottest day of the year at Mayo, 1949 to 2026. The record is 40.0 C (104.0 F) in 1985, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Mayo by year
Year	Hottest day (TXx)
1949	35.6 C (96.1 F)
1950	38.9 C (102.0 F)
1951	36.7 C (98.1 F)
1952	38.9 C (102.0 F)
1953	38.3 C (100.9 F)
1954	38.3 C (100.9 F)
1955	37.2 C (99.0 F)
1956	37.2 C (99.0 F)
1957	36.1 C (97.0 F)
1958	35.6 C (96.1 F)
1959	36.1 C (97.0 F)
1960	36.1 C (97.0 F)
1961	37.2 C (99.0 F)
1962	37.2 C (99.0 F)
1963	35.6 C (96.1 F)
1964	37.2 C (99.0 F)
1965	35.0 C (95.0 F)
1966	35.6 C (96.1 F)
1967	36.7 C (98.1 F)
1968	36.1 C (97.0 F)
1969	36.1 C (97.0 F)
1970	36.7 C (98.1 F)
1971	38.3 C (100.9 F)
1972	37.8 C (100.0 F)
1973	35.6 C (96.1 F)
1974	35.0 C (95.0 F)
1975	35.6 C (96.1 F)
1976	36.1 C (97.0 F)
1977	37.8 C (100.0 F)
1978	36.7 C (98.1 F)
1979	37.2 C (99.0 F)
1980	37.2 C (99.0 F)
1981	39.4 C (102.9 F)
1982	36.1 C (97.0 F)
1983	37.2 C (99.0 F)
1984	36.1 C (97.0 F)
1985	40.0 C (104.0 F)
1986	37.8 C (100.0 F)
1987	37.2 C (99.0 F)
1988	36.7 C (98.1 F)
1989	37.8 C (100.0 F)
1990	38.3 C (100.9 F)
1991	36.1 C (97.0 F)
1992	37.2 C (99.0 F)
1993	38.3 C (100.9 F)
1994	36.1 C (97.0 F)
1995	39.4 C (102.9 F)
1996	36.7 C (98.1 F)
1997	37.8 C (100.0 F)
1998	40.0 C (104.0 F)
1999	39.4 C (102.9 F)
2000	37.8 C (100.0 F)
2001	36.1 C (97.0 F)
2002	37.8 C (100.0 F)
2003	35.0 C (95.0 F)
2004	36.1 C (97.0 F)
2005	36.7 C (98.1 F)
2006	36.7 C (98.1 F)
2007	36.7 C (98.1 F)
2008	36.7 C (98.1 F)
2009	36.7 C (98.1 F)
2010	37.8 C (100.0 F)
2011	38.3 C (100.9 F)
2012	36.7 C (98.1 F)
2013	35.0 C (95.0 F)
2014	36.7 C (98.1 F)
2015	37.8 C (100.0 F)
2016	37.2 C (99.0 F)
2017	36.1 C (97.0 F)
2018	36.1 C (97.0 F)
2019	37.2 C (99.0 F)
2020	36.1 C (97.0 F)
2021	34.4 C (93.9 F)
2022	38.9 C (102.0 F)
2023	36.7 C (98.1 F)
2024	37.8 C (100.0 F)
2025	37.2 C (99.0 F)
2026	37.2 C (99.0 F)

Coldest night (TNn)

The coldest night of the year at Mayo, 1949 to 2026. The record is -13.9 C (7.0 F) in 1985, marked on the chart; the median year is -6.7 C (19.9 F).

Coldest night (TNn) at Mayo by year
Year	Coldest night (TNn)
1949	-2.8 C (27.0 F)
1950	-6.7 C (19.9 F)
1951	-7.8 C (18.0 F)
1952	-4.4 C (24.1 F)
1953	-6.7 C (19.9 F)
1954	-5.6 C (21.9 F)
1955	-6.7 C (19.9 F)
1956	-7.2 C (19.0 F)
1957	-8.9 C (16.0 F)
1958	-7.2 C (19.0 F)
1959	-6.7 C (19.9 F)
1960	-8.9 C (16.0 F)
1961	-8.9 C (16.0 F)
1962	-12.2 C (10.0 F)
1963	-6.7 C (19.9 F)
1964	-10.0 C (14.0 F)
1965	-7.2 C (19.0 F)
1966	-10.6 C (12.9 F)
1967	-8.3 C (17.1 F)
1968	-7.2 C (19.0 F)
1969	-3.9 C (25.0 F)
1970	-8.9 C (16.0 F)
1971	0.0 C (32.0 F)
1972	-4.4 C (24.1 F)
1973	-6.7 C (19.9 F)
1974	-6.7 C (19.9 F)
1975	-5.0 C (23.0 F)
1976	-5.0 C (23.0 F)
1977	-8.3 C (17.1 F)
1978	-5.0 C (23.0 F)
1979	-6.7 C (19.9 F)
1980	-7.2 C (19.0 F)
1981	-11.1 C (12.0 F)
1982	-9.4 C (15.1 F)
1983	-10.6 C (12.9 F)
1984	-5.0 C (23.0 F)
1985	-13.9 C (7.0 F)
1986	-7.8 C (18.0 F)
1987	-3.9 C (25.0 F)
1988	-6.7 C (19.9 F)
1989	-11.1 C (12.0 F)
1990	-3.9 C (25.0 F)
1991	-4.4 C (24.1 F)
1992	-6.1 C (21.0 F)
1993	-4.4 C (24.1 F)
1994	-6.1 C (21.0 F)
1995	-8.9 C (16.0 F)
1996	-11.1 C (12.0 F)
1997	-6.7 C (19.9 F)
1998	-3.3 C (26.1 F)
1999	-7.8 C (18.0 F)
2000	-8.3 C (17.1 F)
2001	-7.8 C (18.0 F)
2002	-7.8 C (18.0 F)
2003	-7.8 C (18.0 F)
2004	-6.1 C (21.0 F)
2005	-6.7 C (19.9 F)
2006	-5.0 C (23.0 F)
2007	-6.7 C (19.9 F)
2008	-6.7 C (19.9 F)
2009	-7.2 C (19.0 F)
2010	-8.9 C (16.0 F)
2011	-7.2 C (19.0 F)
2012	-6.7 C (19.9 F)
2013	-4.4 C (24.1 F)
2014	-6.1 C (21.0 F)
2015	-6.7 C (19.9 F)
2016	-4.4 C (24.1 F)
2017	-5.0 C (23.0 F)
2018	-6.1 C (21.0 F)
2019	-3.3 C (26.1 F)
2020	-6.1 C (21.0 F)
2021	-3.9 C (25.0 F)
2022	-9.4 C (15.1 F)
2023	-4.4 C (24.1 F)
2024	-7.8 C (18.0 F)
2025	-9.4 C (15.1 F)
2026	-11.1 C (12.0 F)

Wettest day (Rx1day)

The wettest day of the year at Mayo, 1949 to 2026. The record is 371.3 mm (14.6 in) in 1964, marked on the chart; the median year is 99.1 mm (3.9 in).

Wettest day (Rx1day) at Mayo by year
Year	Wettest day (Rx1day)
1949	72.4 mm (2.9 in)
1950	64.8 mm (2.6 in)
1951	126.5 mm (5.0 in)
1952	95.3 mm (3.8 in)
1953	126.0 mm (5.0 in)
1954	113.0 mm (4.4 in)
1955	73.7 mm (2.9 in)
1956	101.6 mm (4.0 in)
1957	142.2 mm (5.6 in)
1958	158.0 mm (6.2 in)
1959	152.4 mm (6.0 in)
1960	78.2 mm (3.1 in)
1961	62.2 mm (2.4 in)
1962	82.3 mm (3.2 in)
1963	96.5 mm (3.8 in)
1964	371.3 mm (14.6 in)
1965	62.2 mm (2.4 in)
1966	99.1 mm (3.9 in)
1967	108.0 mm (4.3 in)
1968	69.1 mm (2.7 in)
1969	96.5 mm (3.8 in)
1970	133.4 mm (5.3 in)
1971	88.9 mm (3.5 in)
1972	101.6 mm (4.0 in)
1973	61.5 mm (2.4 in)
1974	108.5 mm (4.3 in)
1975	88.9 mm (3.5 in)
1976	95.3 mm (3.8 in)
1977	99.1 mm (3.9 in)
1978	99.8 mm (3.9 in)
1979	113.0 mm (4.4 in)
1980	142.2 mm (5.6 in)
1981	74.9 mm (2.9 in)
1982	104.6 mm (4.1 in)
1983	108.0 mm (4.3 in)
1984	92.5 mm (3.6 in)
1985	81.8 mm (3.2 in)
1986	127.5 mm (5.0 in)
1987	83.8 mm (3.3 in)
1988	99.1 mm (3.9 in)
1989	94.5 mm (3.7 in)
1990	117.1 mm (4.6 in)
1991	181.6 mm (7.1 in)
1992	92.7 mm (3.6 in)
1993	62.2 mm (2.4 in)
1994	218.4 mm (8.6 in)
1995	73.7 mm (2.9 in)
1996	139.7 mm (5.5 in)
1997	81.3 mm (3.2 in)
1998	152.4 mm (6.0 in)
1999	78.7 mm (3.1 in)
2000	125.7 mm (4.9 in)
2001	81.8 mm (3.2 in)
2002	92.7 mm (3.6 in)
2003	126.2 mm (5.0 in)
2004	193.0 mm (7.6 in)
2005	80.0 mm (3.1 in)
2006	107.4 mm (4.2 in)
2007	88.9 mm (3.5 in)
2008	193.5 mm (7.6 in)
2009	64.5 mm (2.5 in)
2010	125.7 mm (4.9 in)
2011	73.9 mm (2.9 in)
2012	226.6 mm (8.9 in)
2013	68.3 mm (2.7 in)
2014	109.2 mm (4.3 in)
2015	63.2 mm (2.5 in)
2016	149.9 mm (5.9 in)
2017	99.3 mm (3.9 in)
2018	96.8 mm (3.8 in)
2019	98.6 mm (3.9 in)
2020	109.2 mm (4.3 in)
2021	78.7 mm (3.1 in)
2022	116.3 mm (4.6 in)
2023	127.0 mm (5.0 in)
2024	84.1 mm (3.3 in)
2025	165.1 mm (6.5 in)
2026	84.1 mm (3.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mayo, 1949 to 2026. The record is 602.7 mm (23.7 in) in 1964, marked on the chart; the median year is 153.4 mm (6.0 in).

Wettest five days (Rx5day) at Mayo by year
Year	Wettest five days (Rx5day)
1949	100.1 mm (3.9 in)
1950	131.8 mm (5.2 in)
1951	154.4 mm (6.1 in)
1952	135.3 mm (5.3 in)
1953	172.8 mm (6.8 in)
1954	145.0 mm (5.7 in)
1955	73.7 mm (2.9 in)
1956	152.4 mm (6.0 in)
1957	337.7 mm (13.3 in)
1958	185.4 mm (7.3 in)
1959	253.0 mm (10.0 in)
1960	139.8 mm (5.5 in)
1961	101.8 mm (4.0 in)
1962	172.0 mm (6.8 in)
1963	96.8 mm (3.8 in)
1964	602.7 mm (23.7 in)
1965	113.3 mm (4.5 in)
1966	174.8 mm (6.9 in)
1967	164.7 mm (6.5 in)
1968	98.8 mm (3.9 in)
1969	141.3 mm (5.6 in)
1970	197.8 mm (7.8 in)
1971	139.2 mm (5.5 in)
1972	145.6 mm (5.7 in)
1973	130.3 mm (5.1 in)
1974	167.4 mm (6.6 in)
1975	103.7 mm (4.1 in)
1976	116.1 mm (4.6 in)
1977	128.3 mm (5.1 in)
1978	114.3 mm (4.5 in)
1979	139.1 mm (5.5 in)
1980	266.9 mm (10.5 in)
1981	108.2 mm (4.3 in)
1982	159.5 mm (6.3 in)
1983	113.6 mm (4.5 in)
1984	119.5 mm (4.7 in)
1985	167.2 mm (6.6 in)
1986	145.1 mm (5.7 in)
1987	128.3 mm (5.1 in)
1988	179.9 mm (7.1 in)
1989	173.8 mm (6.8 in)
1990	185.7 mm (7.3 in)
1991	181.6 mm (7.1 in)
1992	198.2 mm (7.8 in)
1993	119.3 mm (4.7 in)
1994	255.5 mm (10.1 in)
1995	119.4 mm (4.7 in)
1996	180.3 mm (7.1 in)
1997	150.6 mm (5.9 in)
1998	205.2 mm (8.1 in)
1999	107.9 mm (4.2 in)
2000	249.7 mm (9.8 in)
2001	156.4 mm (6.2 in)
2002	116.1 mm (4.6 in)
2003	194.1 mm (7.6 in)
2004	201.0 mm (7.9 in)
2005	116.4 mm (4.6 in)
2006	132.3 mm (5.2 in)
2007	158.5 mm (6.2 in)
2008	303.7 mm (12.0 in)
2009	111.2 mm (4.4 in)
2010	164.8 mm (6.5 in)
2011	114.1 mm (4.5 in)
2012	476.8 mm (18.8 in)
2013	174.5 mm (6.9 in)
2014	154.4 mm (6.1 in)
2015	75.4 mm (3.0 in)
2016	205.8 mm (8.1 in)
2017	148.3 mm (5.8 in)
2018	159.6 mm (6.3 in)
2019	134.9 mm (5.3 in)
2020	171.5 mm (6.8 in)
2021	171.3 mm (6.7 in)
2022	226.0 mm (8.9 in)
2023	191.0 mm (7.5 in)
2024	115.1 mm (4.5 in)
2025	180.8 mm (7.1 in)
2026	135.4 mm (5.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mayo, 1949 to 2026. The record is 41 days in 2022, marked on the chart; the median year is 25 days.

Longest dry spell (CDD) at Mayo by year
Year	Longest dry spell (CDD)
1949	22 days
1950	34 days
1951	32 days
1952	19 days
1953	17 days
1954	20 days
1955	38 days
1956	23 days
1957	20 days
1958	21 days
1959	19 days
1960	29 days
1961	14 days
1962	14 days
1963	33 days
1964	22 days
1965	28 days
1966	20 days
1967	30 days
1968	28 days
1969	15 days
1970	23 days
1971	29 days
1972	25 days
1973	33 days
1974	26 days
1975	20 days
1976	13 days
1977	25 days
1978	28 days
1979	22 days
1980	19 days
1981	21 days
1982	16 days
1983	16 days
1984	25 days
1985	17 days
1986	30 days
1987	33 days
1988	18 days
1989	30 days
1990	25 days
1991	29 days
1992	29 days
1993	17 days
1994	23 days
1995	18 days
1996	15 days
1997	17 days
1998	33 days
1999	34 days
2000	33 days
2001	27 days
2002	29 days
2003	15 days
2004	22 days
2005	27 days
2006	21 days
2007	38 days
2008	19 days
2009	24 days
2010	29 days
2011	22 days
2012	32 days
2013	26 days
2014	33 days
2015	24 days
2016	24 days
2017	25 days
2018	21 days
2019	18 days
2020	25 days
2021	31 days
2022	41 days
2023	33 days
2024	27 days
2025	27 days
2026	24 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.

Frost Dates and Growing Season

56 years with a frost

Across 56 years with a frost, the median last spring frost at Mayo falls on 11 March and the median first autumn frost on 18 November, which leaves a median of 249 days between them.

Fitted over all years, the growing season changes by +1.9 days per decade at this station.

Frost dates and growing season at Mayo
Measure	Median, all years	Earliest period	Recent period (1982 to 2025)	Recent against earliest	Fitted trend
Last spring frost	11 March	n/a	13 March	n/a	-0.1 days per decade
First autumn frost	18 November	n/a	22 November	n/a	+1.8 days per decade
Growing days	249 days	n/a	251 days	n/a	+1.9 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

73 years, 1950 to 2025

A day with at least 98.8 mm (3.9 in) of rain is expected about once in 2 years. A day with at least 294.8 mm (11.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Mayo: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	98.8 mm (3.9 in)
5 years	134.2 mm (5.3 in)
10 years	163.3 mm (6.4 in)
25 years	208.0 mm (8.2 in)
50 years	248.1 mm (9.8 in)
100 years	294.8 mm (11.6 in)	Longer than the 73 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, 73 years of values from 1950 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: 371.3 mm (14.6 in) in 1964; 226.6 mm (8.9 in) in 2012; 218.4 mm (8.6 in) in 1994.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2005 to 2025 against 1961 to 1990

Over 2005 to 2025, Mayo had a mean temperature of 20.4 C (68.7 F) and 1,415.4 mm (55.7 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Folkston 9 SW (United States, 125 km away), Apalachicola AP (United States, 182 km away) and Jacksonville (United States, 149 km away).

Climate twins of Mayo: stations whose 1961 to 1990 climate is closest to its 2005 to 2025 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Folkston 9 SW	United States	125 km (78 mi)	20.1 C (68.1 F)	1,366.1 mm (53.8 in)	0.53
Apalachicola AP	United States	182 km (113 mi)	20.1 C (68.1 F)	1,391.9 mm (54.8 in)	0.54
Jacksonville	United States	149 km (93 mi)	20.3 C (68.5 F)	1,303.9 mm (51.3 in)	0.58

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Mayo standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mayo 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).