Merritt Island Weather Records (USC00085643)

Record envelope, standing records and threshold days for Merritt Island (USC00085643), Florida, United States, with 64 years of record.

Key Facts for Merritt Island

Merritt Island (USC00085643) is a weather station in Florida, United States at 28.35 latitude and -80.70 longitude, 9 m (30 ft) above sea level.
The station reports from 1893 to 1956, 64 years of record.
1,464 records set at Merritt Island still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Florida, United States, 28.35 latitude, -80.70 longitude.
Elevation: 9 m (30 ft).
Period of record: 1893 to 1956, 64 years.
Eligible elements: none yet.

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 Merritt Island. 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 Merritt Island, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.7 C (89.1 F)	-4.4 C (24.1 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-5.6 C (21.9 F)	n/a	n/a
Mar	33.3 C (91.9 F)	2.8 C (37.0 F)	n/a	n/a
Apr	33.9 C (93.0 F)	6.7 C (44.1 F)	n/a	n/a
May	37.2 C (99.0 F)	12.8 C (55.0 F)	n/a	n/a
Jun	38.3 C (100.9 F)	17.8 C (64.0 F)	n/a	n/a
Jul	37.2 C (99.0 F)	16.1 C (61.0 F)	n/a	n/a
Aug	36.7 C (98.1 F)	18.3 C (64.9 F)	n/a	n/a
Sep	35.6 C (96.1 F)	17.8 C (64.0 F)	n/a	n/a
Oct	33.9 C (93.0 F)	10.0 C (50.0 F)	n/a	n/a
Nov	31.7 C (89.1 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	29.4 C (84.9 F)	-5.6 C (21.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Merritt Island still stand. 1897 holds the most, with 104.

Standing records at Merritt Island by the year they were set
Year set	Standing records
1893	4
1894	9
1895	5
1896	3
1897	104
1898	77
1899	73
1900	98
1901	91
1902	82
1903	67
1904	41
1905	57
1906	51
1907	34
1908	32
1909	66
1948	63
1949	57
1950	68
1951	63
1952	76
1953	70
1954	64
1955	69
1956	40

Wettest Day of Each Month

Oct: 281.9 mm (11.1 in)

The wettest day on record for each calendar month at Merritt Island. The most was 281.9 mm (11.1 in) on 4 October 1899.

Record daily precipitation for each month at Merritt Island
Month	Record daily precipitation (mm)	Date
Jan	87.1 mm (3.4 in)	15 January 1896
Feb	61.0 mm (2.4 in)	15 February 1895
Mar	82.6 mm (3.3 in)	20 March 1901
Apr	69.9 mm (2.8 in)	2 April 1949
May	91.2 mm (3.6 in)	19 May 1895
Jun	144.0 mm (5.7 in)	22 June 1902
Jul	92.5 mm (3.6 in)	9 July 1948
Aug	142.2 mm (5.6 in)	27 August 1949
Sep	245.4 mm (9.7 in)	25 September 1894
Oct	281.9 mm (11.1 in)	4 October 1899
Nov	129.0 mm (5.1 in)	25 November 1897
Dec	51.3 mm (2.0 in)	29 December 1905

Period of Record Coverage

1893 to 1956

27 years of record at Merritt Island, 1893 to 1956. 8 years have data for under 90 percent of days and are left out of rankings: 1893, 1894, 1895, 1896, 1908, 1910, 1948, 1956.

Days with data per year at Merritt Island
Year	Days with data	Share of year	Complete
1893	12	3%	No
1894	12	3%	No
1895	12	3%	No
1896	12	3%	No
1897	357	98%	Yes
1898	354	97%	Yes
1899	359	98%	Yes
1900	354	97%	Yes
1901	362	99%	Yes
1902	360	99%	Yes
1903	363	99%	Yes
1904	363	99%	Yes
1905	364	100%	Yes
1906	363	99%	Yes
1907	365	100%	Yes
1908	104	28%	No
1909	356	98%	Yes
1910	1	0%	No
1948	183	50%	No
1949	349	96%	Yes
1950	351	96%	Yes
1951	353	97%	Yes
1952	357	98%	Yes
1953	362	99%	Yes
1954	364	100%	Yes
1955	364	100%	Yes
1956	180	49%	No

Latest Records

No records were set at this station in the latest data.

Climate Trend

17 complete years, 1897 to 1955

One stripe for each of 17 complete years at Merritt Island, 1897 to 1955. Blue stripes are years cooler than the station's own mean of 22.7 C (72.8 F); red stripes are warmer. The coolest year was 1901, at 21.8 C (71.2 F), and the warmest was 1897, at 23.3 C (74.0 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Merritt Island as warming stripes, 1897 to 1955
Year	Annual mean temperature	Difference from the station mean
1897	23.3 C	+0.62 C
1898	22.9 C	+0.19 C
1899	23.1 C	+0.42 C
1900	22.9 C	+0.18 C
1901	21.8 C	-0.89 C
1903	22.3 C	-0.42 C
1904	22.4 C	-0.30 C
1905	22.8 C	+0.07 C
1906	22.5 C	-0.15 C
1907	23.0 C	+0.30 C
1909	22.9 C	+0.25 C
1950	22.7 C	-0.01 C
1951	22.5 C	-0.17 C
1952	22.6 C	-0.09 C
1953	23.0 C	+0.26 C
1954	22.5 C	-0.17 C
1955	22.6 C	-0.06 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1893 to 1956

Yearly extremes at Merritt Island: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	1950	35.0 C (95.0 F)	27
Coldest night (TNn)	-5.6 C (21.9 F)	1894	1.1 C (34.0 F)	27
Wettest day (Rx1day)	281.9 mm (11.1 in)	1899	94.5 mm (3.7 in)	27
Wettest five days (Rx5day)	460.2 mm (18.1 in)	1899	149.9 mm (5.9 in)	22
Longest dry spell (CDD)	55 days	1956	24 days	23

Hottest day (TXx)

The hottest day of the year at Merritt Island, 1893 to 1956. The record is 38.3 C (100.9 F) in 1950, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Merritt Island by year
Year	Hottest day (TXx)
1893	34.4 C (93.9 F)
1894	35.0 C (95.0 F)
1895	34.4 C (93.9 F)
1896	34.4 C (93.9 F)
1897	35.0 C (95.0 F)
1898	35.6 C (96.1 F)
1899	35.6 C (96.1 F)
1900	36.1 C (97.0 F)
1901	33.3 C (91.9 F)
1902	35.6 C (96.1 F)
1903	35.0 C (95.0 F)
1904	33.9 C (93.0 F)
1905	33.9 C (93.0 F)
1906	33.3 C (91.9 F)
1907	34.4 C (93.9 F)
1908	31.1 C (88.0 F)
1909	35.6 C (96.1 F)
1910	33.3 C (91.9 F)
1948	34.4 C (93.9 F)
1949	35.6 C (96.1 F)
1950	38.3 C (100.9 F)
1951	35.0 C (95.0 F)
1952	37.2 C (99.0 F)
1953	37.2 C (99.0 F)
1954	37.2 C (99.0 F)
1955	36.1 C (97.0 F)
1956	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Merritt Island, 1893 to 1956. The record is -5.6 C (21.9 F) in 1894, marked on the chart; the median year is 1.1 C (34.0 F).

Coldest night (TNn) at Merritt Island by year
Year	Coldest night (TNn)
1893	1.1 C (34.0 F)
1894	-5.6 C (21.9 F)
1895	-5.6 C (21.9 F)
1896	1.7 C (35.1 F)
1897	-1.7 C (28.9 F)
1898	-1.7 C (28.9 F)
1899	-4.4 C (24.1 F)
1900	-1.1 C (30.0 F)
1901	-1.1 C (30.0 F)
1902	-1.1 C (30.0 F)
1903	1.1 C (34.0 F)
1904	3.3 C (37.9 F)
1905	-4.4 C (24.1 F)
1906	-1.7 C (28.9 F)
1907	3.3 C (37.9 F)
1908	4.4 C (39.9 F)
1909	-2.2 C (28.0 F)
1910	21.1 C (70.0 F)
1948	2.8 C (37.0 F)
1949	1.1 C (34.0 F)
1950	-1.1 C (30.0 F)
1951	1.1 C (34.0 F)
1952	2.2 C (36.0 F)
1953	1.7 C (35.1 F)
1954	1.1 C (34.0 F)
1955	1.1 C (34.0 F)
1956	-0.6 C (30.9 F)

Wettest day (Rx1day)

The wettest day of the year at Merritt Island, 1893 to 1956. The record is 281.9 mm (11.1 in) in 1899, marked on the chart; the median year is 94.5 mm (3.7 in).

Wettest day (Rx1day) at Merritt Island by year
Year	Wettest day (Rx1day)
1893	105.2 mm (4.1 in)
1894	245.4 mm (9.7 in)
1895	117.9 mm (4.6 in)
1896	87.1 mm (3.4 in)
1897	129.0 mm (5.1 in)
1898	79.2 mm (3.1 in)
1899	281.9 mm (11.1 in)
1900	85.1 mm (3.4 in)
1901	82.6 mm (3.3 in)
1902	144.0 mm (5.7 in)
1903	82.6 mm (3.3 in)
1904	104.4 mm (4.1 in)
1905	176.0 mm (6.9 in)
1906	88.4 mm (3.5 in)
1907	56.1 mm (2.2 in)
1908	58.4 mm (2.3 in)
1909	62.2 mm (2.4 in)
1910	0.0 mm (0.00 in)
1948	94.7 mm (3.7 in)
1949	142.2 mm (5.6 in)
1950	95.3 mm (3.8 in)
1951	113.5 mm (4.5 in)
1952	95.3 mm (3.8 in)
1953	94.5 mm (3.7 in)
1954	68.8 mm (2.7 in)
1955	46.7 mm (1.8 in)
1956	37.1 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Merritt Island, 1893 to 1956. The record is 460.2 mm (18.1 in) in 1899, marked on the chart; the median year is 149.9 mm (5.9 in).

Wettest five days (Rx5day) at Merritt Island by year
Year	Wettest five days (Rx5day)
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	228.9 mm (9.0 in)
1898	123.4 mm (4.9 in)
1899	460.2 mm (18.1 in)
1900	103.2 mm (4.1 in)
1901	169.1 mm (6.7 in)
1902	149.8 mm (5.9 in)
1903	108.0 mm (4.3 in)
1904	139.5 mm (5.5 in)
1905	234.2 mm (9.2 in)
1906	161.3 mm (6.4 in)
1907	121.4 mm (4.8 in)
1908	71.9 mm (2.8 in)
1909	87.6 mm (3.4 in)
1910	n/a
1948	150.0 mm (5.9 in)
1949	187.7 mm (7.4 in)
1950	279.0 mm (11.0 in)
1951	166.6 mm (6.6 in)
1952	191.8 mm (7.6 in)
1953	124.7 mm (4.9 in)
1954	157.4 mm (6.2 in)
1955	92.0 mm (3.6 in)
1956	56.1 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Merritt Island, 1893 to 1956. The record is 55 days in 1956, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Merritt Island by year
Year	Longest dry spell (CDD)
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	19 days
1898	23 days
1899	24 days
1900	14 days
1901	22 days
1902	28 days
1903	22 days
1904	21 days
1905	28 days
1906	42 days
1907	35 days
1908	25 days
1909	18 days
1910	1 day
1948	26 days
1949	22 days
1950	16 days
1951	32 days
1952	43 days
1953	27 days
1954	17 days
1955	30 days
1956	55 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 Merritt Island standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Merritt Island 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).