Marianna Sch For Boys Weather Records (USC00085372)

Record envelope, standing records and threshold days for Marianna Sch For Boys (USC00085372), Florida, United States, with 69 years of record.

Key Facts for Marianna Sch For Boys

Marianna Sch For Boys (USC00085372) is a weather station in Florida, United States at 30.77 latitude and -85.27 longitude, 52 m (171 ft) above sea level.
The station reports from 1900 to 1968, 69 years of record.
1,464 records set at Marianna Sch For Boys still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Marianna Sch For Boys set a daily record low minimum temperature of 15.6 C (60.1 F) on 30 June 1968.

About the Station

Location: Florida, United States, 30.77 latitude, -85.27 longitude.
Elevation: 52 m (171 ft).
Period of record: 1900 to 1968, 69 years.
Eligible elements: tmax, tmin, 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 Marianna Sch For Boys. 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 Marianna Sch For Boys, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	29.4 C (84.9 F)	-13.9 C (7.0 F)	n/a	n/a
Feb	30.0 C (86.0 F)	-10.6 C (12.9 F)	n/a	n/a
Mar	34.4 C (93.9 F)	-6.1 C (21.0 F)	n/a	n/a
Apr	36.1 C (97.0 F)	-4.4 C (24.1 F)	n/a	n/a
May	39.4 C (102.9 F)	4.4 C (39.9 F)	n/a	n/a
Jun	41.1 C (106.0 F)	10.6 C (51.1 F)	n/a	n/a
Jul	42.2 C (108.0 F)	13.3 C (55.9 F)	n/a	n/a
Aug	39.4 C (102.9 F)	13.3 C (55.9 F)	n/a	n/a
Sep	41.1 C (106.0 F)	5.0 C (41.0 F)	n/a	n/a
Oct	37.2 C (99.0 F)	-1.1 C (30.0 F)	n/a	n/a
Nov	32.2 C (90.0 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	29.4 C (84.9 F)	-13.3 C (8.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Marianna Sch For Boys still stand. 1925 holds the most, with 49.

Standing records at Marianna Sch For Boys by the year they were set
Year set	Standing records
1900	10
1901	32
1902	25
1903	26
1904	25
1905	28
1906	30
1907	25
1908	24
1909	17
1910	26
1911	23
1912	21
1913	33
1914	41
1915	35
1916	24
1917	38
1918	44
1919	34
1920	23
1921	27
1922	23
1923	25
1924	28
1925	49
1926	13
1927	26
1928	20
1929	22
1930	18
1931	25
1932	48
1933	15
1934	15
1935	12
1936	13
1937	25
1938	14
1939	15
1940	21
1941	9
1942	16
1943	16
1944	22
1945	11
1946	14
1947	12
1948	23
1949	10
1950	29
1951	15
1952	15
1953	14
1954	17
1955	17
1956	24
1957	23
1958	13
1959	7
1960	10
1961	19
1962	17
1963	9
1964	17
1965	9
1966	16
1967	18
1968	4

All-Time Record Progression

7 new records

7 all-time records were set at Marianna Sch For Boys between 26 January 1940 and 30 January 1966. Each dot is a new record.

When Marianna Sch For Boys set new all-time records
Date	Kind	Detail
1940-01-26	Record low maximum temperature	Record low maximum temperature -0.6 C (30.9 F)
1940-01-27	Record low maximum temperature	Record low maximum temperature -1.1 C (30.0 F)
1948-04-01	Record daily precipitation	Record daily precipitation 215.9 mm (8.5 in)
1952-06-27	Record high minimum temperature	Record high minimum temperature 26.7 C (80.1 F)
1952-07-04	Record high minimum temperature	Record high minimum temperature 27.8 C (82.0 F)
1962-12-13	Record low minimum temperature	Record low minimum temperature -13.3 C (8.1 F)
1966-01-30	Record low minimum temperature	Record low minimum temperature -13.9 C (7.0 F)

Wettest Day of Each Month

Apr: 215.9 mm (8.5 in)

The wettest day on record for each calendar month at Marianna Sch For Boys. The most was 215.9 mm (8.5 in) on 1 April 1948.

Record daily precipitation for each month at Marianna Sch For Boys
Month	Record daily precipitation (mm)	Date
Jan	99.8 mm (3.9 in)	6 January 1936
Feb	132.6 mm (5.2 in)	7 February 1914
Mar	177.8 mm (7.0 in)	14 March 1902
Apr	215.9 mm (8.5 in)	1 April 1948
May	126.2 mm (5.0 in)	12 May 1903
Jun	149.4 mm (5.9 in)	2 June 1922
Jul	103.6 mm (4.1 in)	1 July 1910
Aug	198.1 mm (7.8 in)	31 August 1950
Sep	188.0 mm (7.4 in)	21 September 1926
Oct	203.2 mm (8.0 in)	1 October 1929
Nov	127.0 mm (5.0 in)	17 November 1930
Dec	144.8 mm (5.7 in)	6 December 1953

Period of Record Coverage

1900 to 1968

69 years of record at Marianna Sch For Boys, 1900 to 1968. 12 years have data for under 90 percent of days and are left out of rankings: 1900, 1904, 1905, 1906, 1907, 1908, 1909, 1910 and others.

Days with data per year at Marianna Sch For Boys
Year	Days with data	Share of year	Complete
1900	254	70%	No
1901	362	99%	Yes
1902	342	94%	Yes
1903	330	90%	Yes
1904	328	90%	No
1905	313	86%	No
1906	324	89%	No
1907	279	76%	No
1908	239	65%	No
1909	258	71%	No
1910	328	90%	No
1911	362	99%	Yes
1912	353	96%	Yes
1913	353	97%	Yes
1914	362	99%	Yes
1915	365	100%	Yes
1916	366	100%	Yes
1917	364	100%	Yes
1918	364	100%	Yes
1919	364	100%	Yes
1920	334	91%	Yes
1921	301	82%	No
1922	365	100%	Yes
1923	363	99%	Yes
1924	366	100%	Yes
1925	365	100%	Yes
1926	359	98%	Yes
1927	347	95%	Yes
1928	360	98%	Yes
1929	334	92%	Yes
1930	325	89%	No
1931	363	99%	Yes
1932	364	99%	Yes
1933	212	58%	No
1934	333	91%	Yes
1935	361	99%	Yes
1936	366	100%	Yes
1937	364	100%	Yes
1938	335	92%	Yes
1939	364	100%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	362	99%	Yes
1943	365	100%	Yes
1944	366	100%	Yes
1945	364	100%	Yes
1946	365	100%	Yes
1947	362	99%	Yes
1948	366	100%	Yes
1949	346	95%	Yes
1950	336	92%	Yes
1951	359	98%	Yes
1952	359	98%	Yes
1953	352	96%	Yes
1954	348	95%	Yes
1955	357	98%	Yes
1956	364	99%	Yes
1957	363	99%	Yes
1958	363	99%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	364	100%	Yes
1964	366	100%	Yes
1965	362	99%	Yes
1966	365	100%	Yes
1967	364	100%	Yes
1968	182	50%	No

Latest Records

Latest records at Marianna Sch For Boys
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 June 1968	Marianna Sch For Boys, US	daily low min	15.6 C (60.1 F)	1.6 C (2.9 F)	45 years	26 of 100 (Routine)
22 June 1968	Marianna Sch For Boys, US	daily rain	42.7 mm (1.7 in)	14.8 mm (0.6 in)	27 years	23 of 100 (Routine)
11 June 1968	Marianna Sch For Boys, US	daily high min (Tie)	22.8 C (73.0 F)	tie	27 years	3 of 100 (Routine)
21 April 1968	Marianna Sch For Boys, US	daily high max (Tie)	32.8 C (91.0 F)	tie	51 years	5 of 100 (Routine)
5 April 1968	Marianna Sch For Boys, US	daily high min (Tie)	20.0 C (68.0 F)	tie	12 years	2 of 100 (Routine)
23 March 1968	Marianna Sch For Boys, US	daily low max	10.0 C (50.0 F)	1.1 C (2.0 F)	53 years	23 of 100 (Routine)
29 February 1968	Marianna Sch For Boys, US	daily low max	13.3 C (55.9 F)	0.6 C (1.1 F)	48 years	21 of 100 (Routine)
29 February 1968	Marianna Sch For Boys, US	daily rain	19.3 mm (0.8 in)	0.5 mm (0.02 in)	48 years	20 of 100 (Routine)
13 January 1968	Marianna Sch For Boys, US	daily low max	6.1 C (43.0 F)	0.6 C (1.1 F)	64 years	26 of 100 (Routine)
21 December 1967	Marianna Sch For Boys, US	daily high max	26.7 C (80.1 F)	0.6 C (1.1 F)	10 years	10 of 100 (Routine)
20 December 1967	Marianna Sch For Boys, US	daily high min (Tie)	16.7 C (62.1 F)	tie	17 years	2 of 100 (Routine)
19 December 1967	Marianna Sch For Boys, US	daily high min	20.0 C (68.0 F)	3.3 C (5.9 F)	17 years	16 of 100 (Routine)
19 December 1967	Marianna Sch For Boys, US	daily high max (Tie)	27.8 C (82.0 F)	tie	17 years	2 of 100 (Routine)
18 December 1967	Marianna Sch For Boys, US	daily high min	18.3 C (64.9 F)	0.5 C (0.9 F)	5 years	7 of 100 (Routine)
18 December 1967	Marianna Sch For Boys, US	daily high max (Tie)	26.7 C (80.1 F)	tie	58 years	5 of 100 (Routine)
15 December 1967	Marianna Sch For Boys, US	daily high max	27.2 C (81.0 F)	1.1 C (2.0 F)	45 years	21 of 100 (Routine)
10 December 1967	Marianna Sch For Boys, US	daily rain	105.4 mm (4.1 in)	58.9 mm (2.3 in)	0 years	37 of 100 (Notable)
27 November 1967	Marianna Sch For Boys, US	daily high min (Tie)	18.9 C (66.0 F)	tie	20 years	3 of 100 (Routine)
23 November 1967	Marianna Sch For Boys, US	daily high min (Tie)	16.7 C (62.1 F)	tie	18 years	2 of 100 (Routine)
7 November 1967	Marianna Sch For Boys, US	daily low min (Tie)	-1.1 C (30.0 F)	tie	56 years	5 of 100 (Routine)

Climate Trend

48 complete years, 1901 to 1967

One stripe for each of 48 complete years at Marianna Sch For Boys, 1901 to 1967. Blue stripes are years cooler than the station's own mean of 19.8 C (67.6 F); red stripes are warmer. The coolest year was 1901, at 18.2 C (64.8 F), and the warmest was 1922, at 21.1 C (70.0 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Marianna Sch For Boys as warming stripes, 1901 to 1967
Year	Annual mean temperature	Difference from the station mean
1901	18.2 C	-1.59 C
1911	20.7 C	+0.90 C
1912	19.2 C	-0.64 C
1913	19.9 C	+0.10 C
1914	19.4 C	-0.38 C
1915	19.3 C	-0.52 C
1916	19.5 C	-0.30 C
1917	19.0 C	-0.81 C
1918	19.7 C	-0.08 C
1919	20.2 C	+0.43 C
1922	21.1 C	+1.31 C
1923	20.3 C	+0.44 C
1924	19.6 C	-0.26 C
1925	20.7 C	+0.90 C
1926	19.5 C	-0.36 C
1928	19.3 C	-0.54 C
1931	19.8 C	-0.01 C
1932	20.5 C	+0.65 C
1935	19.9 C	+0.04 C
1936	20.2 C	+0.42 C
1937	20.0 C	+0.16 C
1939	19.4 C	-0.45 C
1940	19.6 C	-0.24 C
1941	20.0 C	+0.15 C
1942	20.0 C	+0.15 C
1943	19.9 C	+0.07 C
1944	20.2 C	+0.40 C
1945	20.4 C	+0.61 C
1946	20.4 C	+0.58 C
1947	19.9 C	+0.06 C
1948	19.9 C	+0.08 C
1951	19.8 C	+0.00 C
1952	19.7 C	-0.09 C
1953	20.0 C	+0.21 C
1954	20.0 C	+0.16 C
1955	19.8 C	+0.00 C
1956	20.2 C	+0.38 C
1957	20.6 C	+0.79 C
1958	19.2 C	-0.61 C
1959	20.0 C	+0.20 C
1960	19.4 C	-0.44 C
1961	19.7 C	-0.15 C
1962	20.0 C	+0.14 C
1963	19.3 C	-0.49 C
1964	19.4 C	-0.43 C
1965	19.6 C	-0.21 C
1966	19.0 C	-0.85 C
1967	19.7 C	-0.11 C

The fitted trend in annual mean temperature here over 1901 to 1967 is 0.01 C (-0.07 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.03 F (-0.13 to 0.18) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Marianna Sch For Boys
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.01 C (-0.07 to 0.10) per decade	0.03 F (-0.13 to 0.18) per decade	1901 to 1967	48	Not clearly different from zero
Mean daily maximum	-0.02 C (-0.12 to 0.09) per decade	-0.03 F (-0.22 to 0.16) per decade	1901 to 1967	48	Not clearly different from zero
Mean daily minimum	0.05 C (-0.06 to 0.15) per decade	0.1 F (-0.1 to 0.3) per decade	1901 to 1967	48	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

1900 to 1968

Yearly extremes at Marianna Sch For Boys: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.2 C (108.0 F)	1909	37.2 C (99.0 F)	69
Coldest night (TNn)	-13.9 C (7.0 F)	1966	-6.7 C (19.9 F)	69
Wettest day (Rx1day)	215.9 mm (8.5 in)	1948	90.4 mm (3.6 in)	69
Wettest five days (Rx5day)	338.6 mm (13.3 in)	1926	152.2 mm (6.0 in)	69
Longest dry spell (CDD)	56 days	1931	23 days	69

Hottest day (TXx)

The hottest day of the year at Marianna Sch For Boys, 1900 to 1968. The record is 42.2 C (108.0 F) in 1909, marked on the chart; the median year is 37.2 C (99.0 F).

Hottest day (TXx) at Marianna Sch For Boys by year
Year	Hottest day (TXx)
1900	37.2 C (99.0 F)
1901	37.2 C (99.0 F)
1902	37.2 C (99.0 F)
1903	35.6 C (96.1 F)
1904	38.9 C (102.0 F)
1905	38.3 C (100.9 F)
1906	38.3 C (100.9 F)
1907	37.8 C (100.0 F)
1908	39.4 C (102.9 F)
1909	42.2 C (108.0 F)
1910	36.1 C (97.0 F)
1911	37.8 C (100.0 F)
1912	37.2 C (99.0 F)
1913	39.4 C (102.9 F)
1914	41.1 C (106.0 F)
1915	38.9 C (102.0 F)
1916	37.8 C (100.0 F)
1917	37.2 C (99.0 F)
1918	39.4 C (102.9 F)
1919	37.2 C (99.0 F)
1920	38.3 C (100.9 F)
1921	38.3 C (100.9 F)
1922	38.9 C (102.0 F)
1923	37.2 C (99.0 F)
1924	38.3 C (100.9 F)
1925	41.1 C (106.0 F)
1926	36.7 C (98.1 F)
1927	38.9 C (102.0 F)
1928	36.1 C (97.0 F)
1929	36.1 C (97.0 F)
1930	39.4 C (102.9 F)
1931	37.8 C (100.0 F)
1932	41.1 C (106.0 F)
1933	40.6 C (105.1 F)
1934	37.2 C (99.0 F)
1935	37.2 C (99.0 F)
1936	37.2 C (99.0 F)
1937	37.2 C (99.0 F)
1938	37.2 C (99.0 F)
1939	35.6 C (96.1 F)
1940	37.2 C (99.0 F)
1941	37.2 C (99.0 F)
1942	37.2 C (99.0 F)
1943	37.8 C (100.0 F)
1944	37.8 C (100.0 F)
1945	37.2 C (99.0 F)
1946	35.0 C (95.0 F)
1947	36.7 C (98.1 F)
1948	37.2 C (99.0 F)
1949	36.7 C (98.1 F)
1950	37.2 C (99.0 F)
1951	37.2 C (99.0 F)
1952	38.9 C (102.0 F)
1953	37.8 C (100.0 F)
1954	40.6 C (105.1 F)
1955	36.1 C (97.0 F)
1956	36.7 C (98.1 F)
1957	36.1 C (97.0 F)
1958	36.7 C (98.1 F)
1959	37.2 C (99.0 F)
1960	36.1 C (97.0 F)
1961	36.1 C (97.0 F)
1962	36.7 C (98.1 F)
1963	36.1 C (97.0 F)
1964	36.1 C (97.0 F)
1965	35.6 C (96.1 F)
1966	37.8 C (100.0 F)
1967	36.1 C (97.0 F)
1968	36.1 C (97.0 F)

Coldest night (TNn)

The coldest night of the year at Marianna Sch For Boys, 1900 to 1968. The record is -13.9 C (7.0 F) in 1966, marked on the chart; the median year is -6.7 C (19.9 F).

Coldest night (TNn) at Marianna Sch For Boys by year
Year	Coldest night (TNn)
1900	-0.6 C (30.9 F)
1901	-9.4 C (15.1 F)
1902	-7.8 C (18.0 F)
1903	-5.6 C (21.9 F)
1904	-5.0 C (23.0 F)
1905	-9.4 C (15.1 F)
1906	-5.6 C (21.9 F)
1907	-3.3 C (26.1 F)
1908	-2.8 C (27.0 F)
1909	-7.8 C (18.0 F)
1910	-5.0 C (23.0 F)
1911	-7.8 C (18.0 F)
1912	-5.6 C (21.9 F)
1913	-3.9 C (25.0 F)
1914	-5.0 C (23.0 F)
1915	-4.4 C (24.1 F)
1916	-5.6 C (21.9 F)
1917	-9.4 C (15.1 F)
1918	-9.4 C (15.1 F)
1919	-7.8 C (18.0 F)
1920	-7.2 C (19.0 F)
1921	0.0 C (32.0 F)
1922	-4.4 C (24.1 F)
1923	-7.2 C (19.0 F)
1924	-10.6 C (12.9 F)
1925	-7.8 C (18.0 F)
1926	-3.9 C (25.0 F)
1927	-8.9 C (16.0 F)
1928	-8.9 C (16.0 F)
1929	-8.3 C (17.1 F)
1930	-6.1 C (21.0 F)
1931	-4.4 C (24.1 F)
1932	-5.0 C (23.0 F)
1933	-8.3 C (17.1 F)
1934	-7.8 C (18.0 F)
1935	-6.1 C (21.0 F)
1936	-6.1 C (21.0 F)
1937	-8.9 C (16.0 F)
1938	-4.4 C (24.1 F)
1939	-1.7 C (28.9 F)
1940	-8.3 C (17.1 F)
1941	-1.7 C (28.9 F)
1942	-7.8 C (18.0 F)
1943	-7.2 C (19.0 F)
1944	-6.1 C (21.0 F)
1945	-6.7 C (19.9 F)
1946	-2.2 C (28.0 F)
1947	-5.6 C (21.9 F)
1948	-8.3 C (17.1 F)
1949	-2.2 C (28.0 F)
1950	-7.2 C (19.0 F)
1951	-10.6 C (12.9 F)
1952	-5.0 C (23.0 F)
1953	-3.9 C (25.0 F)
1954	-5.0 C (23.0 F)
1955	-8.3 C (17.1 F)
1956	-4.4 C (24.1 F)
1957	-7.8 C (18.0 F)
1958	-8.3 C (17.1 F)
1959	-6.7 C (19.9 F)
1960	-6.7 C (19.9 F)
1961	-8.3 C (17.1 F)
1962	-13.3 C (8.1 F)
1963	-11.1 C (12.0 F)
1964	-6.7 C (19.9 F)
1965	-5.6 C (21.9 F)
1966	-13.9 C (7.0 F)
1967	-5.6 C (21.9 F)
1968	-5.0 C (23.0 F)

Wettest day (Rx1day)

The wettest day of the year at Marianna Sch For Boys, 1900 to 1968. The record is 215.9 mm (8.5 in) in 1948, marked on the chart; the median year is 90.4 mm (3.6 in).

Wettest day (Rx1day) at Marianna Sch For Boys by year
Year	Wettest day (Rx1day)
1900	76.5 mm (3.0 in)
1901	108.2 mm (4.3 in)
1902	177.8 mm (7.0 in)
1903	126.2 mm (5.0 in)
1904	51.3 mm (2.0 in)
1905	81.3 mm (3.2 in)
1906	157.5 mm (6.2 in)
1907	148.6 mm (5.9 in)
1908	55.9 mm (2.2 in)
1909	58.9 mm (2.3 in)
1910	104.1 mm (4.1 in)
1911	89.4 mm (3.5 in)
1912	175.3 mm (6.9 in)
1913	81.3 mm (3.2 in)
1914	132.6 mm (5.2 in)
1915	64.0 mm (2.5 in)
1916	73.7 mm (2.9 in)
1917	78.7 mm (3.1 in)
1918	101.6 mm (4.0 in)
1919	68.6 mm (2.7 in)
1920	135.4 mm (5.3 in)
1921	72.9 mm (2.9 in)
1922	149.4 mm (5.9 in)
1923	94.0 mm (3.7 in)
1924	101.6 mm (4.0 in)
1925	84.3 mm (3.3 in)
1926	188.0 mm (7.4 in)
1927	88.1 mm (3.5 in)
1928	136.1 mm (5.4 in)
1929	203.2 mm (8.0 in)
1930	127.0 mm (5.0 in)
1931	132.6 mm (5.2 in)
1932	90.2 mm (3.6 in)
1933	94.5 mm (3.7 in)
1934	52.6 mm (2.1 in)
1935	58.4 mm (2.3 in)
1936	99.8 mm (3.9 in)
1937	127.0 mm (5.0 in)
1938	84.6 mm (3.3 in)
1939	129.5 mm (5.1 in)
1940	104.1 mm (4.1 in)
1941	83.8 mm (3.3 in)
1942	93.7 mm (3.7 in)
1943	61.0 mm (2.4 in)
1944	68.3 mm (2.7 in)
1945	53.8 mm (2.1 in)
1946	113.0 mm (4.4 in)
1947	120.1 mm (4.7 in)
1948	215.9 mm (8.5 in)
1949	73.2 mm (2.9 in)
1950	198.1 mm (7.8 in)
1951	72.9 mm (2.9 in)
1952	86.4 mm (3.4 in)
1953	144.8 mm (5.7 in)
1954	55.9 mm (2.2 in)
1955	90.4 mm (3.6 in)
1956	108.0 mm (4.3 in)
1957	71.1 mm (2.8 in)
1958	64.5 mm (2.5 in)
1959	80.8 mm (3.2 in)
1960	99.3 mm (3.9 in)
1961	70.6 mm (2.8 in)
1962	88.9 mm (3.5 in)
1963	81.8 mm (3.2 in)
1964	138.4 mm (5.4 in)
1965	72.6 mm (2.9 in)
1966	92.7 mm (3.6 in)
1967	105.4 mm (4.1 in)
1968	42.7 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Marianna Sch For Boys, 1900 to 1968. The record is 338.6 mm (13.3 in) in 1926, marked on the chart; the median year is 152.2 mm (6.0 in).

Wettest five days (Rx5day) at Marianna Sch For Boys by year
Year	Wettest five days (Rx5day)
1900	94.0 mm (3.7 in)
1901	128.8 mm (5.1 in)
1902	251.7 mm (9.9 in)
1903	157.0 mm (6.2 in)
1904	132.5 mm (5.2 in)
1905	129.5 mm (5.1 in)
1906	247.6 mm (9.7 in)
1907	196.9 mm (7.8 in)
1908	86.4 mm (3.4 in)
1909	73.1 mm (2.9 in)
1910	284.6 mm (11.2 in)
1911	183.7 mm (7.2 in)
1912	253.6 mm (10.0 in)
1913	122.1 mm (4.8 in)
1914	147.0 mm (5.8 in)
1915	152.2 mm (6.0 in)
1916	213.2 mm (8.4 in)
1917	126.5 mm (5.0 in)
1918	152.8 mm (6.0 in)
1919	128.3 mm (5.1 in)
1920	135.4 mm (5.3 in)
1921	173.0 mm (6.8 in)
1922	156.0 mm (6.1 in)
1923	159.3 mm (6.3 in)
1924	181.3 mm (7.1 in)
1925	129.8 mm (5.1 in)
1926	338.6 mm (13.3 in)
1927	152.1 mm (6.0 in)
1928	152.1 mm (6.0 in)
1929	259.6 mm (10.2 in)
1930	174.0 mm (6.9 in)
1931	279.4 mm (11.0 in)
1932	210.1 mm (8.3 in)
1933	180.7 mm (7.1 in)
1934	114.8 mm (4.5 in)
1935	108.5 mm (4.3 in)
1936	163.3 mm (6.4 in)
1937	182.4 mm (7.2 in)
1938	88.4 mm (3.5 in)
1939	324.1 mm (12.8 in)
1940	137.3 mm (5.4 in)
1941	108.5 mm (4.3 in)
1942	185.1 mm (7.3 in)
1943	86.9 mm (3.4 in)
1944	128.4 mm (5.1 in)
1945	116.6 mm (4.6 in)
1946	239.3 mm (9.4 in)
1947	197.6 mm (7.8 in)
1948	262.1 mm (10.3 in)
1949	125.3 mm (4.9 in)
1950	254.0 mm (10.0 in)
1951	134.9 mm (5.3 in)
1952	96.3 mm (3.8 in)
1953	217.7 mm (8.6 in)
1954	78.7 mm (3.1 in)
1955	153.4 mm (6.0 in)
1956	117.4 mm (4.6 in)
1957	158.4 mm (6.2 in)
1958	104.5 mm (4.1 in)
1959	117.7 mm (4.6 in)
1960	176.3 mm (6.9 in)
1961	156.8 mm (6.2 in)
1962	126.8 mm (5.0 in)
1963	115.1 mm (4.5 in)
1964	182.1 mm (7.2 in)
1965	179.8 mm (7.1 in)
1966	134.6 mm (5.3 in)
1967	135.2 mm (5.3 in)
1968	73.8 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Marianna Sch For Boys, 1900 to 1968. The record is 56 days in 1931, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Marianna Sch For Boys by year
Year	Longest dry spell (CDD)
1900	30 days
1901	23 days
1902	19 days
1903	23 days
1904	43 days
1905	22 days
1906	24 days
1907	23 days
1908	52 days
1909	32 days
1910	19 days
1911	27 days
1912	20 days
1913	32 days
1914	24 days
1915	19 days
1916	33 days
1917	24 days
1918	19 days
1919	23 days
1920	27 days
1921	26 days
1922	19 days
1923	17 days
1924	25 days
1925	30 days
1926	11 days
1927	24 days
1928	14 days
1929	26 days
1930	25 days
1931	56 days
1932	18 days
1933	21 days
1934	23 days
1935	18 days
1936	32 days
1937	19 days
1938	24 days
1939	44 days
1940	23 days
1941	32 days
1942	23 days
1943	47 days
1944	26 days
1945	17 days
1946	18 days
1947	13 days
1948	22 days
1949	19 days
1950	23 days
1951	23 days
1952	24 days
1953	15 days
1954	20 days
1955	29 days
1956	30 days
1957	22 days
1958	26 days
1959	28 days
1960	14 days
1961	51 days
1962	17 days
1963	32 days
1964	33 days
1965	38 days
1966	15 days
1967	26 days
1968	22 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

48 years with a frost

Across 48 years with a frost, the median last spring frost at Marianna Sch For Boys falls on 7 March and the median first autumn frost on 18 November, which leaves a median of 254 days between them.

Fitted over all years, the growing season changes by +1.6 days per decade at this station.

Frost dates and growing season at Marianna Sch For Boys
Measure	Median, all years	Earliest period	Recent period (1935 to 1967)	Recent against earliest	Fitted trend
Last spring frost	7 March	n/a	2 March	n/a	-1.8 days per decade
First autumn frost	18 November	n/a	23 November	n/a	-0.2 days per decade
Growing days	254 days	n/a	259 days	n/a	+1.6 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

57 years, 1901 to 1967

A day with at least 91.9 mm (3.6 in) of rain is expected about once in 2 years. A day with at least 249.8 mm (9.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Marianna Sch For Boys: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	91.9 mm (3.6 in)
5 years	125.2 mm (4.9 in)
10 years	150.5 mm (5.9 in)
25 years	186.6 mm (7.3 in)
50 years	216.7 mm (8.5 in)
100 years	249.8 mm (9.8 in)	Longer than the 57 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, 57 years of values from 1901 to 1967.

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: 215.9 mm (8.5 in) in 1948; 203.2 mm (8.0 in) in 1929; 198.1 mm (7.8 in) in 1950.

Station Changes

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

Download the Data

Data for Marianna Sch For Boys standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Marianna Sch For Boys 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).