Huntsville Weather Records (CA006113660)

Record envelope, standing records and threshold days for Huntsville (CA006113660), Ontario, Canada, with 83 years of record.

Key Facts for Huntsville

Huntsville (CA006113660) is a weather station in Ontario, Canada at 45.32 latitude and -79.25 longitude, 290 m (951 ft) above sea level.
The station reports from 1879 to 1961, 83 years of record.
1,464 records set at Huntsville still stand.
Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
Huntsville set a daily record high minimum temperature of 3.3 C (37.9 F) on 3 March 1961.

About the Station

Location: Ontario, Canada, 45.32 latitude, -79.25 longitude.
Elevation: 290 m (951 ft).
Period of record: 1879 to 1961, 83 years.
Eligible elements: tmax, tmin, prcp, snow.

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 Huntsville. 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 Huntsville, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.8 C (55.0 F)	-43.9 C (-47.0 F)	n/a	n/a
Feb	13.9 C (57.0 F)	-43.3 C (-45.9 F)	n/a	n/a
Mar	25.6 C (78.1 F)	-35.6 C (-32.1 F)	n/a	n/a
Apr	31.7 C (89.1 F)	-23.3 C (-9.9 F)	n/a	n/a
May	33.9 C (93.0 F)	-7.8 C (18.0 F)	n/a	n/a
Jun	34.4 C (93.9 F)	-6.7 C (19.9 F)	n/a	n/a
Jul	38.3 C (100.9 F)	-3.9 C (25.0 F)	n/a	n/a
Aug	35.0 C (95.0 F)	-1.1 C (30.0 F)	n/a	n/a
Sep	34.4 C (93.9 F)	-4.4 C (24.1 F)	n/a	n/a
Oct	28.9 C (84.0 F)	-12.2 C (10.0 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Dec	16.1 C (61.0 F)	-44.4 C (-47.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Huntsville still stand. 1882 holds the most, with 62.

Standing records at Huntsville by the year they were set
Year set	Standing records
1879	40
1880	26
1881	28
1882	62
1883	19
1884	30
1885	32
1911	23
1912	16
1913	25
1914	29
1915	19
1916	30
1917	29
1918	31
1919	32
1920	38
1921	33
1922	27
1923	9
1924	26
1925	25
1926	31
1927	21
1928	24
1929	24
1930	28
1931	32
1932	25
1933	30
1934	36
1935	10
1936	39
1937	17
1938	28
1939	12
1940	20
1941	17
1942	29
1943	25
1944	26
1945	34
1946	35
1947	41
1948	12
1949	26
1950	29
1951	13
1952	10
1953	24
1954	21
1955	15
1956	19
1957	21
1958	18
1959	28
1960	13
1961	2

All-Time Record Progression

2 new records

2 all-time records were set at Huntsville between 8 July 1936 and 9 August 1942. Each dot is a new record.

When Huntsville set new all-time records
Date	Kind	Detail
1936-07-08	Record high minimum temperature	Record high minimum temperature 23.9 C (75.0 F)
1942-08-09	Record daily precipitation	Record daily precipitation 104.4 mm (4.1 in)

Wettest Day of Each Month

Aug: 104.4 mm (4.1 in)

The wettest day on record for each calendar month at Huntsville. The most was 104.4 mm (4.1 in) on 9 August 1942.

Record daily precipitation for each month at Huntsville
Month	Record daily precipitation (mm)	Date
Jan	47.0 mm (1.9 in)	11 January 1924
Feb	44.5 mm (1.8 in)	8 February 1900
Mar	50.8 mm (2.0 in)	26 March 1906
Apr	41.1 mm (1.6 in)	17 April 1938
May	72.9 mm (2.9 in)	13 May 1956
Jun	88.9 mm (3.5 in)	19 June 1894
Jul	65.8 mm (2.6 in)	12 July 1946
Aug	104.4 mm (4.1 in)	9 August 1942
Sep	86.6 mm (3.4 in)	27 September 1942
Oct	82.6 mm (3.3 in)	7 October 1896
Nov	57.2 mm (2.3 in)	21 November 1900
Dec	49.5 mm (1.9 in)	31 December 1906

Period of Record Coverage

1879 to 1961

59 years of record at Huntsville, 1879 to 1961. 21 years have data for under 90 percent of days and are left out of rankings: 1879, 1880, 1881, 1882, 1883, 1884, 1885, 1910 and others.

Days with data per year at Huntsville
Year	Days with data	Share of year	Complete
1879	303	83%	No
1880	267	73%	No
1881	328	90%	No
1882	277	76%	No
1883	316	87%	No
1884	272	74%	No
1885	201	55%	No
1910	31	8%	No
1911	364	100%	Yes
1912	365	100%	Yes
1913	359	98%	Yes
1914	364	100%	Yes
1915	365	100%	Yes
1916	366	100%	Yes
1917	364	100%	Yes
1918	364	100%	Yes
1919	365	100%	Yes
1920	366	100%	Yes
1921	365	100%	Yes
1922	365	100%	Yes
1923	226	62%	No
1924	335	92%	Yes
1925	364	100%	Yes
1926	362	99%	Yes
1927	338	93%	Yes
1928	359	98%	Yes
1929	343	94%	Yes
1930	344	94%	Yes
1931	360	99%	Yes
1932	365	100%	Yes
1933	363	99%	Yes
1934	363	99%	Yes
1935	363	99%	Yes
1936	364	99%	Yes
1937	359	98%	Yes
1938	356	98%	Yes
1939	360	99%	Yes
1940	364	99%	Yes
1941	359	98%	Yes
1942	363	99%	Yes
1943	356	98%	Yes
1944	359	98%	Yes
1945	359	98%	Yes
1946	356	98%	Yes
1947	359	98%	Yes
1948	321	88%	No
1949	317	87%	No
1950	321	88%	No
1951	313	86%	No
1952	322	88%	No
1953	313	86%	No
1954	314	86%	No
1955	342	94%	Yes
1956	319	87%	No
1957	332	91%	Yes
1958	319	87%	No
1959	319	87%	No
1960	298	81%	No
1961	76	21%	No

Latest Records

Latest records at Huntsville
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 March 1961	Huntsville, CA	daily high min	3.3 C (37.9 F)	2.7 C (4.9 F)	27 years	19 of 100 (Routine)
24 February 1961	Huntsville, CA	daily high min (Tie)	0.6 C (33.1 F)	tie	46 years	5 of 100 (Routine)
1 February 1961	Huntsville, CA	daily low max (Tie)	-17.2 C (1.0 F)	tie	79 years	7 of 100 (Routine)
20 January 1961	Huntsville, CA	daily low max	-15.6 C (3.9 F)	1.2 C (2.2 F)	18 years	14 of 100 (Routine)
18 December 1960	Huntsville, CA	daily snowfall	19.1 cm (7.5 in)	8.9 cm (3.5 in)	63 years	41 of 100 (Notable)
17 December 1960	Huntsville, CA	daily snowfall	22.9 cm (9.0 in)	10.2 cm (4.0 in)	13 years	27 of 100 (Routine)
17 December 1960	Huntsville, CA	daily rain	22.9 mm (0.9 in)	10.2 mm (0.4 in)	13 years	20 of 100 (Routine)
12 December 1960	Huntsville, CA	daily low max	-17.2 C (1.0 F)	2.8 C (5.0 F)	27 years	20 of 100 (Routine)
9 December 1960	Huntsville, CA	daily rain	15.2 mm (0.6 in)	3.8 mm (0.15 in)	53 years	20 of 100 (Routine)
9 December 1960	Huntsville, CA	daily snowfall	15.2 cm (6.0 in)	5.0 cm (2.0 in)	28 years	24 of 100 (Routine)
6 December 1960	Huntsville, CA	monthly high min (Tie)	5.6 C (42.1 F)	tie	46 years	7 of 100 (Routine)
2 November 1960	Huntsville, CA	daily rain	40.6 mm (1.6 in)	17.7 mm (0.7 in)	53 years	46 of 100 (Notable)
1 November 1960	Huntsville, CA	daily rain	55.9 mm (2.2 in)	15.5 mm (0.6 in)	28 years	36 of 100 (Notable)
23 October 1960	Huntsville, CA	daily snowfall	7.6 cm (3.0 in)	5.1 cm (2.0 in)	23 years	20 of 100 (Routine)
23 October 1960	Huntsville, CA	daily rain	38.1 mm (1.5 in)	2.5 mm (0.10 in)	9 years	12 of 100 (Routine)
17 September 1960	Huntsville, CA	daily rain	38.1 mm (1.5 in)	8.4 mm (0.33 in)	55 years	31 of 100 (Routine)
29 August 1960	Huntsville, CA	daily high min	18.9 C (66.0 F)	0.6 C (1.1 F)	1 year	9 of 100 (Routine)
22 August 1960	Huntsville, CA	daily high min	18.9 C (66.0 F)	0.6 C (1.1 F)	5 years	10 of 100 (Routine)
20 July 1960	Huntsville, CA	daily low max (Tie)	20.6 C (69.1 F)	tie	13 years	2 of 100 (Routine)
18 July 1960	Huntsville, CA	daily rain	29.0 mm (1.1 in)	8.4 mm (0.33 in)	19 years	21 of 100 (Routine)

Climate Trend

47 complete years, 1881 to 1960

One stripe for each of 47 complete years at Huntsville, 1881 to 1960. Blue stripes are years cooler than the station's own mean of 5.1 C (41.2 F); red stripes are warmer. The coolest year was 1917, at 2.9 C (37.3 F), and the warmest was 1931, at 7.1 C (44.7 F). The strongest colour marks a difference of 2.2 C (4.0 F).

Annual mean temperature at Huntsville as warming stripes, 1881 to 1960
Year	Annual mean temperature	Difference from the station mean
1881	4.4 C	-0.76 C
1911	5.6 C	+0.47 C
1912	3.8 C	-1.32 C
1913	5.8 C	+0.65 C
1914	4.3 C	-0.79 C
1915	5.3 C	+0.21 C
1916	4.9 C	-0.23 C
1917	2.9 C	-2.19 C
1918	4.5 C	-0.59 C
1919	5.3 C	+0.16 C
1920	4.4 C	-0.77 C
1921	6.5 C	+1.39 C
1922	5.1 C	-0.07 C
1925	3.8 C	-1.30 C
1926	3.0 C	-2.15 C
1927	4.9 C	-0.26 C
1928	4.4 C	-0.72 C
1930	6.1 C	+0.96 C
1931	7.1 C	+1.93 C
1932	6.1 C	+1.02 C
1933	5.5 C	+0.35 C
1934	4.2 C	-0.89 C
1935	4.9 C	-0.25 C
1936	4.4 C	-0.72 C
1937	5.9 C	+0.82 C
1938	6.1 C	+1.00 C
1939	5.1 C	-0.02 C
1940	4.1 C	-1.00 C
1941	5.7 C	+0.60 C
1942	5.9 C	+0.74 C
1943	4.0 C	-1.12 C
1944	6.0 C	+0.83 C
1945	5.1 C	+0.02 C
1946	6.3 C	+1.15 C
1947	5.1 C	+0.00 C
1948	5.6 C	+0.44 C
1949	6.0 C	+0.84 C
1950	4.6 C	-0.52 C
1951	5.3 C	+0.15 C
1952	5.7 C	+0.62 C
1953	6.5 C	+1.38 C
1954	4.9 C	-0.21 C
1955	5.6 C	+0.44 C
1956	4.5 C	-0.67 C
1958	4.9 C	-0.22 C
1959	5.5 C	+0.37 C
1960	5.2 C	+0.03 C

The fitted trend in annual mean temperature here over 1881 to 1960 is 0.15 C (-0.01 to 0.31) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.27 F (-0.01 to 0.55) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Huntsville
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.15 C (-0.01 to 0.31) per decade	0.27 F (-0.01 to 0.55) per decade	1881 to 1960	47	Not clearly different from zero
Mean daily maximum	0.04 C (-0.14 to 0.21) per decade	0.1 F (-0.3 to 0.4) per decade	1881 to 1960	47	Not clearly different from zero
Mean daily minimum	0.3 C (0.1 to 0.4) per decade	0.5 F (0.2 to 0.8) per decade	1881 to 1960	47	Rise

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

1879 to 1961

Yearly extremes at Huntsville: 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)	1931	32.2 C (90.0 F)	59
Coldest night (TNn)	-44.4 C (-47.9 F)	1933	-36.1 C (-33.0 F)	59
Wettest day (Rx1day)	104.4 mm (4.1 in)	1942	43.1 mm (1.7 in)	64
Wettest five days (Rx5day)	124.4 mm (4.9 in)	1954	67.9 mm (2.7 in)	64
Longest dry spell (CDD)	36 days	1944	17 days	64

Hottest day (TXx)

The hottest day of the year at Huntsville, 1879 to 1961. The record is 38.3 C (100.9 F) in 1931, marked on the chart; the median year is 32.2 C (90.0 F).

Hottest day (TXx) at Huntsville by year
Year	Hottest day (TXx)
1879	33.3 C (91.9 F)
1880	29.4 C (84.9 F)
1881	33.9 C (93.0 F)
1882	32.8 C (91.0 F)
1883	30.6 C (87.1 F)
1884	32.8 C (91.0 F)
1885	29.4 C (84.9 F)
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1910	1.1 C (34.0 F)
1911	35.0 C (95.0 F)
1912	33.3 C (91.9 F)
1913	33.9 C (93.0 F)
1914	33.3 C (91.9 F)
1915	31.7 C (89.1 F)
1916	36.1 C (97.0 F)
1917	34.4 C (93.9 F)
1918	33.3 C (91.9 F)
1919	34.4 C (93.9 F)
1920	31.7 C (89.1 F)
1921	36.1 C (97.0 F)
1922	31.1 C (88.0 F)
1923	31.7 C (89.1 F)
1924	30.0 C (86.0 F)
1925	33.3 C (91.9 F)
1926	30.0 C (86.0 F)
1927	35.0 C (95.0 F)
1928	30.6 C (87.1 F)
1929	32.2 C (90.0 F)
1930	30.6 C (87.1 F)
1931	38.3 C (100.9 F)
1932	31.7 C (89.1 F)
1933	33.9 C (93.0 F)
1934	33.3 C (91.9 F)
1935	32.8 C (91.0 F)
1936	35.0 C (95.0 F)
1937	32.8 C (91.0 F)
1938	36.1 C (97.0 F)
1939	31.7 C (89.1 F)
1940	31.1 C (88.0 F)
1941	33.9 C (93.0 F)
1942	31.1 C (88.0 F)
1943	32.2 C (90.0 F)
1944	34.4 C (93.9 F)
1945	31.1 C (88.0 F)
1946	31.7 C (89.1 F)
1947	32.8 C (91.0 F)
1948	34.4 C (93.9 F)
1949	32.8 C (91.0 F)
1950	30.0 C (86.0 F)
1951	31.1 C (88.0 F)
1952	32.2 C (90.0 F)
1953	34.4 C (93.9 F)
1954	29.4 C (84.9 F)
1955	32.8 C (91.0 F)
1956	31.7 C (89.1 F)
1957	31.7 C (89.1 F)
1958	28.9 C (84.0 F)
1959	32.2 C (90.0 F)
1960	31.7 C (89.1 F)
1961	16.7 C (62.1 F)

Coldest night (TNn)

The coldest night of the year at Huntsville, 1879 to 1961. The record is -44.4 C (-47.9 F) in 1933, marked on the chart; the median year is -36.1 C (-33.0 F).

Coldest night (TNn) at Huntsville by year
Year	Coldest night (TNn)
1879	-33.3 C (-27.9 F)
1880	-36.1 C (-33.0 F)
1881	-40.6 C (-41.1 F)
1882	-43.9 C (-47.0 F)
1883	-40.0 C (-40.0 F)
1884	-41.1 C (-42.0 F)
1885	-37.8 C (-36.0 F)
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1910	-35.0 C (-31.0 F)
1911	-30.0 C (-22.0 F)
1912	-41.1 C (-42.0 F)
1913	-38.3 C (-36.9 F)
1914	-43.3 C (-45.9 F)
1915	-36.7 C (-34.1 F)
1916	-33.3 C (-27.9 F)
1917	-40.0 C (-40.0 F)
1918	-38.3 C (-36.9 F)
1919	-33.3 C (-27.9 F)
1920	-37.2 C (-35.0 F)
1921	-36.1 C (-33.0 F)
1922	-38.9 C (-38.0 F)
1923	-33.3 C (-27.9 F)
1924	-38.9 C (-38.0 F)
1925	-37.8 C (-36.0 F)
1926	-36.1 C (-33.0 F)
1927	-33.9 C (-29.0 F)
1928	-34.4 C (-29.9 F)
1929	-36.1 C (-33.0 F)
1930	-37.2 C (-35.0 F)
1931	-34.4 C (-29.9 F)
1932	-35.0 C (-31.0 F)
1933	-44.4 C (-47.9 F)
1934	-43.3 C (-45.9 F)
1935	-39.4 C (-38.9 F)
1936	-34.4 C (-29.9 F)
1937	-27.2 C (-17.0 F)
1938	-34.4 C (-29.9 F)
1939	-36.1 C (-33.0 F)
1940	-36.1 C (-33.0 F)
1941	-32.8 C (-27.0 F)
1942	-40.0 C (-40.0 F)
1943	-38.3 C (-36.9 F)
1944	-32.8 C (-27.0 F)
1945	-40.0 C (-40.0 F)
1946	-34.4 C (-29.9 F)
1947	-38.3 C (-36.9 F)
1948	-37.8 C (-36.0 F)
1949	-31.1 C (-24.0 F)
1950	-35.6 C (-32.1 F)
1951	-40.0 C (-40.0 F)
1952	-35.6 C (-32.1 F)
1953	-28.9 C (-20.0 F)
1954	-33.3 C (-27.9 F)
1955	-35.6 C (-32.1 F)
1956	-28.9 C (-20.0 F)
1957	-32.8 C (-27.0 F)
1958	-34.4 C (-29.9 F)
1959	-36.7 C (-34.1 F)
1960	-33.9 C (-29.0 F)
1961	-36.1 C (-33.0 F)

Wettest day (Rx1day)

The wettest day of the year at Huntsville, 1879 to 1961. The record is 104.4 mm (4.1 in) in 1942, marked on the chart; the median year is 43.1 mm (1.7 in).

Wettest day (Rx1day) at Huntsville by year
Year	Wettest day (Rx1day)
1879	31.0 mm (1.2 in)
1880	67.8 mm (2.7 in)
1881	22.9 mm (0.9 in)
1882	37.1 mm (1.5 in)
1883	72.4 mm (2.9 in)
1884	46.2 mm (1.8 in)
1885	34.3 mm (1.4 in)
1891	29.2 mm (1.1 in)
1892	33.0 mm (1.3 in)
1893	39.4 mm (1.6 in)
1894	88.9 mm (3.5 in)
1895	38.1 mm (1.5 in)
1896	82.6 mm (3.3 in)
1897	45.2 mm (1.8 in)
1898	40.9 mm (1.6 in)
1899	57.2 mm (2.3 in)
1900	64.3 mm (2.5 in)
1901	58.9 mm (2.3 in)
1902	44.5 mm (1.8 in)
1903	44.5 mm (1.8 in)
1904	71.1 mm (2.8 in)
1905	50.8 mm (2.0 in)
1906	87.1 mm (3.4 in)
1907	33.0 mm (1.3 in)
1908	39.9 mm (1.6 in)
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	41.7 mm (1.6 in)
1924	47.0 mm (1.9 in)
1925	37.6 mm (1.5 in)
1926	33.0 mm (1.3 in)
1927	19.8 mm (0.8 in)
1928	33.3 mm (1.3 in)
1929	29.2 mm (1.1 in)
1930	61.0 mm (2.4 in)
1931	45.7 mm (1.8 in)
1932	76.5 mm (3.0 in)
1933	28.7 mm (1.1 in)
1934	35.8 mm (1.4 in)
1935	54.6 mm (2.1 in)
1936	72.6 mm (2.9 in)
1937	44.2 mm (1.7 in)
1938	72.6 mm (2.9 in)
1939	32.3 mm (1.3 in)
1940	60.2 mm (2.4 in)
1941	39.6 mm (1.6 in)
1942	104.4 mm (4.1 in)
1943	30.5 mm (1.2 in)
1944	78.7 mm (3.1 in)
1945	30.5 mm (1.2 in)
1946	65.8 mm (2.6 in)
1947	32.5 mm (1.3 in)
1948	35.1 mm (1.4 in)
1949	37.1 mm (1.5 in)
1950	50.3 mm (2.0 in)
1951	35.6 mm (1.4 in)
1952	65.5 mm (2.6 in)
1953	33.3 mm (1.3 in)
1954	57.4 mm (2.3 in)
1955	41.9 mm (1.6 in)
1956	72.9 mm (2.9 in)
1957	46.0 mm (1.8 in)
1958	31.5 mm (1.2 in)
1959	25.4 mm (1.0 in)
1960	55.9 mm (2.2 in)
1961	12.7 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Huntsville, 1879 to 1961. The record is 124.4 mm (4.9 in) in 1954, marked on the chart; the median year is 67.9 mm (2.7 in).

Wettest five days (Rx5day) at Huntsville by year
Year	Wettest five days (Rx5day)
1879	52.3 mm (2.1 in)
1880	93.2 mm (3.7 in)
1881	48.3 mm (1.9 in)
1882	65.8 mm (2.6 in)
1883	78.0 mm (3.1 in)
1884	55.9 mm (2.2 in)
1885	47.0 mm (1.9 in)
1891	51.3 mm (2.0 in)
1892	40.9 mm (1.6 in)
1893	55.9 mm (2.2 in)
1894	101.6 mm (4.0 in)
1895	44.5 mm (1.8 in)
1896	83.9 mm (3.3 in)
1897	81.3 mm (3.2 in)
1898	65.3 mm (2.6 in)
1899	102.4 mm (4.0 in)
1900	87.0 mm (3.4 in)
1901	97.0 mm (3.8 in)
1902	74.0 mm (2.9 in)
1903	64.7 mm (2.5 in)
1904	76.2 mm (3.0 in)
1905	68.8 mm (2.7 in)
1906	99.8 mm (3.9 in)
1907	63.8 mm (2.5 in)
1908	41.4 mm (1.6 in)
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	76.8 mm (3.0 in)
1924	76.7 mm (3.0 in)
1925	41.4 mm (1.6 in)
1926	60.4 mm (2.4 in)
1927	39.7 mm (1.6 in)
1928	63.0 mm (2.5 in)
1929	48.0 mm (1.9 in)
1930	84.4 mm (3.3 in)
1931	63.5 mm (2.5 in)
1932	90.9 mm (3.6 in)
1933	66.0 mm (2.6 in)
1934	57.8 mm (2.3 in)
1935	82.6 mm (3.3 in)
1936	72.6 mm (2.9 in)
1937	71.2 mm (2.8 in)
1938	87.3 mm (3.4 in)
1939	44.4 mm (1.7 in)
1940	84.3 mm (3.3 in)
1941	48.4 mm (1.9 in)
1942	115.0 mm (4.5 in)
1943	66.1 mm (2.6 in)
1944	87.1 mm (3.4 in)
1945	54.7 mm (2.2 in)
1946	93.9 mm (3.7 in)
1947	59.3 mm (2.3 in)
1948	95.3 mm (3.8 in)
1949	73.7 mm (2.9 in)
1950	92.5 mm (3.6 in)
1951	67.1 mm (2.6 in)
1952	106.1 mm (4.2 in)
1953	38.6 mm (1.5 in)
1954	124.4 mm (4.9 in)
1955	88.6 mm (3.5 in)
1956	112.8 mm (4.4 in)
1957	54.9 mm (2.2 in)
1958	33.8 mm (1.3 in)
1959	46.5 mm (1.8 in)
1960	107.4 mm (4.2 in)
1961	17.8 mm (0.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Huntsville, 1879 to 1961. The record is 36 days in 1944, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Huntsville by year
Year	Longest dry spell (CDD)
1879	22 days
1880	17 days
1881	20 days
1882	16 days
1883	13 days
1884	18 days
1885	8 days
1891	12 days
1892	23 days
1893	15 days
1894	27 days
1895	14 days
1896	17 days
1897	18 days
1898	15 days
1899	14 days
1900	23 days
1901	17 days
1902	16 days
1903	22 days
1904	11 days
1905	11 days
1906	15 days
1907	14 days
1908	16 days
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	25 days
1924	19 days
1925	17 days
1926	11 days
1927	22 days
1928	16 days
1929	31 days
1930	21 days
1931	12 days
1932	11 days
1933	18 days
1934	12 days
1935	14 days
1936	16 days
1937	14 days
1938	10 days
1939	18 days
1940	12 days
1941	17 days
1942	21 days
1943	16 days
1944	36 days
1945	22 days
1946	22 days
1947	22 days
1948	22 days
1949	25 days
1950	14 days
1951	20 days
1952	27 days
1953	8 days
1954	15 days
1955	23 days
1956	14 days
1957	22 days
1958	18 days
1959	12 days
1960	22 days
1961	10 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

47 years with a frost

Across 47 years with a frost, the median last spring frost at Huntsville falls on 21 May and the median first autumn frost on 22 September, which leaves a median of 124 days between them.

Fitted over all years, the growing season changes by +3.5 days per decade at this station.

Frost dates and growing season at Huntsville
Measure	Median, all years	Earliest period	Recent period (1930 to 1960)	Recent against earliest	Fitted trend
Last spring frost	21 May	n/a	20 May	n/a	-2.8 days per decade
First autumn frost	22 September	n/a	23 September	n/a	+0.7 days per decade
Growing days	124 days	n/a	126 days	n/a	+3.5 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

33 years, 1894 to 1960

A day with at least 50.6 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 119.2 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Huntsville: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	50.6 mm (2.0 in)
5 years	68.8 mm (2.7 in)
10 years	80.9 mm (3.2 in)
25 years	96.3 mm (3.8 in)
50 years	107.8 mm (4.2 in)	Longer than the 33 years of record
100 years	119.2 mm (4.7 in)	Longer than the 33 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, 33 years of values from 1894 to 1960.

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: 104.4 mm (4.1 in) in 1942; 88.9 mm (3.5 in) in 1894; 87.1 mm (3.4 in) in 1906.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Huntsville, at 1930. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1930 ran 0.3 C (0.5 F) higher than in the years before (possible change).

Suspected changes in the annual mean temperature at Huntsville, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1930	+0.3	+0.5	possible	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for Huntsville standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Huntsville 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).