Granville Weather Records (USC00323686)

Record envelope, standing records and threshold days for Granville (USC00323686), North Dakota, United States, with 98 years of record.

Key Facts for Granville

Granville (USC00323686) is a weather station in North Dakota, United States at 48.27 latitude and -100.84 longitude, 460 m (1,510 ft) above sea level.
The station reports from 1907 to 2004, 98 years of record.
1,464 records set at Granville still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Granville set a daily record precipitation of 16.5 mm (0.6 in) on 11 February 2004.

About the Station

Location: North Dakota, United States, 48.27 latitude, -100.84 longitude.
Elevation: 460 m (1,510 ft).
Period of record: 1907 to 2004, 98 years.
Eligible elements: tmax, tmin, 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 Granville. 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 Granville, 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)	-41.7 C (-43.1 F)	n/a	n/a
Feb	19.4 C (66.9 F)	-46.7 C (-52.1 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-35.6 C (-32.1 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-24.4 C (-11.9 F)	n/a	n/a
May	40.6 C (105.1 F)	-11.7 C (10.9 F)	n/a	n/a
Jun	41.7 C (107.1 F)	-5.6 C (21.9 F)	n/a	n/a
Jul	45.6 C (114.1 F)	0.0 C (32.0 F)	n/a	n/a
Aug	41.1 C (106.0 F)	-2.2 C (28.0 F)	n/a	n/a
Sep	40.0 C (104.0 F)	-11.7 C (10.9 F)	n/a	n/a
Oct	36.1 C (97.0 F)	-22.8 C (-9.0 F)	n/a	n/a
Nov	25.6 C (78.1 F)	-32.8 C (-27.0 F)	n/a	n/a
Dec	17.8 C (64.0 F)	-40.0 C (-40.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Granville still stand. 1936 holds the most, with 62.

Standing records at Granville by the year they were set
Year set	Standing records
1907	21
1908	8
1909	14
1910	36
1911	23
1912	20
1913	11
1914	27
1915	18
1916	19
1917	26
1918	19
1919	38
1920	8
1921	15
1922	11
1923	14
1924	26
1925	21
1926	12
1927	49
1928	20
1929	19
1930	17
1931	31
1932	11
1933	9
1934	27
1935	20
1936	62
1937	15
1938	10
1939	35
1940	13
1941	7
1942	18
1943	7
1944	11
1945	9
1946	12
1947	12
1948	17
1949	17
1950	22
1951	10
1952	14
1953	10
1954	6
1955	10
1956	7
1957	6
1958	14
1959	13
1960	12
1961	8
1962	14
1963	14
1964	17
1965	13
1966	10
1967	12
1968	11
1969	14
1970	4
1971	4
1972	13
1973	11
1974	8
1975	6
1976	6
1977	15
1978	16
1979	7
1980	10
1981	13
1982	8
1983	17
1984	8
1985	23
1986	6
1987	12
1988	22
1989	22
1990	11
1991	25
1992	15
1993	6
1994	12
1995	9
1996	7
1997	12
1998	16
1999	16
2000	11
2001	8
2002	6
2003	5
2004	2

All-Time Record Progression

3 new records

3 all-time records were set at Granville between 28 June 1952 and 28 April 1984. Each dot is a new record.

When Granville set new all-time records
Date	Kind	Detail
1952-06-28	Record daily precipitation	Record daily precipitation 92.7 mm (3.6 in)
1968-08-24	Record daily precipitation	Record daily precipitation 94.0 mm (3.7 in)
1984-04-28	Record daily snowfall	Record daily snowfall 50.8 cm (20.0 in)

Wettest Day of Each Month

Aug: 94.0 mm (3.7 in)

The wettest day on record for each calendar month at Granville. The most was 94.0 mm (3.7 in) on 24 August 1968.

Record daily precipitation for each month at Granville
Month	Record daily precipitation (mm)	Date
Jan	45.7 mm (1.8 in)	7 January 1989
Feb	20.1 mm (0.8 in)	27 February 1958
Mar	63.5 mm (2.5 in)	28 March 1985
Apr	50.5 mm (2.0 in)	28 April 1975
May	66.0 mm (2.6 in)	28 May 1953
Jun	92.7 mm (3.6 in)	28 June 1952
Jul	71.1 mm (2.8 in)	11 July 1943
Aug	94.0 mm (3.7 in)	24 August 1968
Sep	61.0 mm (2.4 in)	16 September 1954
Oct	46.7 mm (1.8 in)	19 October 1932
Nov	52.6 mm (2.1 in)	5 November 1922
Dec	26.4 mm (1.0 in)	30 December 1918

Period of Record Coverage

1907 to 2004

98 years of record at Granville, 1907 to 2004. 18 years have data for under 90 percent of days and are left out of rankings: 1908, 1909, 1913, 1916, 1942, 1975, 1976, 1979 and others.

Days with data per year at Granville
Year	Days with data	Share of year	Complete
1907	347	95%	Yes
1908	312	85%	No
1909	312	85%	No
1910	351	96%	Yes
1911	358	98%	Yes
1912	334	91%	Yes
1913	196	54%	No
1914	356	98%	Yes
1915	358	98%	Yes
1916	321	88%	No
1917	360	99%	Yes
1918	360	99%	Yes
1919	359	98%	Yes
1920	361	99%	Yes
1921	361	99%	Yes
1922	362	99%	Yes
1923	354	97%	Yes
1924	340	93%	Yes
1925	350	96%	Yes
1926	358	98%	Yes
1927	358	98%	Yes
1928	360	98%	Yes
1929	357	98%	Yes
1930	363	99%	Yes
1931	362	99%	Yes
1932	363	99%	Yes
1933	364	100%	Yes
1934	362	99%	Yes
1935	358	98%	Yes
1936	361	99%	Yes
1937	364	100%	Yes
1938	362	99%	Yes
1939	363	99%	Yes
1940	363	99%	Yes
1941	362	99%	Yes
1942	274	75%	No
1943	332	91%	Yes
1944	365	100%	Yes
1945	350	96%	Yes
1946	358	98%	Yes
1947	360	99%	Yes
1948	364	99%	Yes
1949	356	98%	Yes
1950	357	98%	Yes
1951	361	99%	Yes
1952	361	99%	Yes
1953	349	96%	Yes
1954	347	95%	Yes
1955	362	99%	Yes
1956	359	98%	Yes
1957	355	97%	Yes
1958	360	99%	Yes
1959	364	100%	Yes
1960	361	99%	Yes
1961	363	99%	Yes
1962	362	99%	Yes
1963	361	99%	Yes
1964	366	100%	Yes
1965	364	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	304	83%	No
1976	100	27%	No
1977	333	91%	Yes
1978	343	94%	Yes
1979	328	90%	No
1980	344	94%	Yes
1981	344	94%	Yes
1982	303	83%	No
1983	332	91%	Yes
1984	330	90%	Yes
1985	333	91%	Yes
1986	338	93%	Yes
1987	303	83%	No
1988	334	91%	Yes
1989	334	92%	Yes
1990	336	92%	Yes
1991	336	92%	Yes
1992	327	89%	No
1993	324	89%	No
1994	328	90%	No
1995	341	93%	Yes
1996	123	34%	No
1997	352	96%	Yes
1998	358	98%	Yes
1999	356	98%	Yes
2000	329	90%	No
2001	290	79%	No
2002	265	73%	No
2003	349	96%	Yes
2004	56	15%	No

Latest Records

Latest records at Granville
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 February 2004	Granville, US	daily rain	16.5 mm (0.6 in)	12.9 mm (0.5 in)	82 years	20 of 100 (Routine)
29 January 2004	Granville, US	daily low max	-31.1 C (-24.0 F)	5.0 C (9.0 F)	88 years	40 of 100 (Notable)
28 January 2004	Granville, US	daily low max	-32.2 C (-26.0 F)	2.8 C (5.0 F)	37 years	23 of 100 (Routine)
11 November 2003	Granville, US	daily rain	5.1 mm (0.20 in)	0.5 mm (0.02 in)	17 years	14 of 100 (Routine)
20 October 2003	Granville, US	daily high min	11.1 C (52.0 F)	1.7 C (3.1 F)	44 years	25 of 100 (Routine)
7 October 2003	Granville, US	daily high min (Tie)	10.0 C (50.0 F)	tie	60 years	6 of 100 (Routine)
9 September 2003	Granville, US	daily high min	18.3 C (64.9 F)	1.6 C (2.9 F)	4 years	13 of 100 (Routine)
18 August 2003	Granville, US	daily high max (Tie)	36.7 C (98.1 F)	tie	29 years	4 of 100 (Routine)
17 August 2003	Granville, US	daily high max (Tie)	39.4 C (102.9 F)	tie	68 years	7 of 100 (Routine)
14 August 2003	Granville, US	daily high min (Tie)	21.1 C (70.0 F)	tie	20 years	3 of 100 (Routine)
12 August 2003	Granville, US	daily high min (Tie)	20.6 C (69.1 F)	tie	33 years	4 of 100 (Routine)
9 August 2003	Granville, US	daily rain	40.6 mm (1.6 in)	8.6 mm (0.34 in)	68 years	37 of 100 (Notable)
8 July 2003	Granville, US	daily low min (Tie)	6.1 C (43.0 F)	tie	18 years	3 of 100 (Routine)
9 April 2003	Granville, US	daily high max	29.4 C (84.9 F)	3.8 C (6.8 F)	92 years	40 of 100 (Notable)
8 March 2003	Granville, US	daily low min (Tie)	-30.6 C (-23.1 F)	tie	18 years	3 of 100 (Routine)
8 January 2003	Granville, US	daily high min	0.0 C (32.0 F)	0.6 C (1.1 F)	12 years	12 of 100 (Routine)
4 January 2003	Granville, US	daily high min	-2.8 C (27.0 F)	1.6 C (2.9 F)	16 years	14 of 100 (Routine)
18 December 2002	Granville, US	daily snowfall	8.9 cm (3.5 in)	3.8 cm (1.5 in)	77 years	41 of 100 (Notable)
13 December 2002	Granville, US	daily high max (Tie)	8.3 C (46.9 F)	tie	4 years	2 of 100 (Routine)
18 September 2002	Granville, US	daily high min	15.0 C (59.0 F)	0.6 C (1.1 F)	88 years	36 of 100 (Notable)

Climate Trend

75 complete years, 1907 to 2003

One stripe for each of 75 complete years at Granville, 1907 to 2003. Blue stripes are years cooler than the station's own mean of 4.4 C (40.0 F); red stripes are warmer. The coolest year was 1927, at 0.8 C (33.4 F), and the warmest was 1999, at 7.2 C (44.9 F). The strongest colour marks a difference of 3.7 C (6.7 F).

Annual mean temperature at Granville as warming stripes, 1907 to 2003
Year	Annual mean temperature	Difference from the station mean
1907	2.2 C	-2.22 C
1910	4.4 C	-0.01 C
1911	2.8 C	-1.68 C
1914	4.5 C	+0.05 C
1915	3.8 C	-0.69 C
1917	2.6 C	-1.80 C
1918	4.4 C	-0.02 C
1919	3.4 C	-1.07 C
1920	3.8 C	-0.60 C
1921	5.5 C	+1.03 C
1922	4.4 C	-0.09 C
1923	4.4 C	-0.05 C
1926	3.9 C	-0.51 C
1927	0.8 C	-3.66 C
1928	3.9 C	-0.55 C
1929	2.8 C	-1.67 C
1930	4.8 C	+0.37 C
1931	6.8 C	+2.36 C
1932	4.2 C	-0.25 C
1933	4.9 C	+0.41 C
1934	6.0 C	+1.59 C
1935	3.1 C	-1.37 C
1936	3.0 C	-1.45 C
1937	3.8 C	-0.61 C
1938	5.3 C	+0.81 C
1939	5.1 C	+0.67 C
1940	4.8 C	+0.39 C
1941	5.9 C	+1.48 C
1944	4.8 C	+0.35 C
1945	3.6 C	-0.80 C
1946	4.7 C	+0.21 C
1947	4.3 C	-0.16 C
1948	3.7 C	-0.75 C
1949	3.9 C	-0.55 C
1950	1.6 C	-2.87 C
1951	2.1 C	-2.31 C
1952	5.2 C	+0.71 C
1953	6.0 C	+1.56 C
1956	4.3 C	-0.17 C
1957	5.0 C	+0.59 C
1958	5.3 C	+0.84 C
1959	4.6 C	+0.11 C
1960	4.7 C	+0.22 C
1961	5.7 C	+1.22 C
1962	5.0 C	+0.53 C
1963	6.1 C	+1.67 C
1964	4.4 C	-0.03 C
1965	3.4 C	-1.01 C
1966	3.7 C	-0.75 C
1967	4.2 C	-0.26 C
1968	4.1 C	-0.36 C
1969	4.0 C	-0.48 C
1970	3.6 C	-0.83 C
1971	4.2 C	-0.20 C
1972	3.2 C	-1.23 C
1973	5.3 C	+0.85 C
1974	4.4 C	-0.04 C
1977	5.3 C	+0.88 C
1978	3.7 C	-0.77 C
1979	2.8 C	-1.69 C
1980	4.3 C	-0.17 C
1981	6.5 C	+2.02 C
1983	5.0 C	+0.59 C
1984	4.5 C	+0.09 C
1985	2.9 C	-1.51 C
1986	5.3 C	+0.83 C
1988	6.3 C	+1.82 C
1990	6.4 C	+1.99 C
1991	6.1 C	+1.64 C
1994	5.1 C	+0.63 C
1995	4.5 C	+0.01 C
1997	5.3 C	+0.81 C
1998	7.1 C	+2.65 C
1999	7.2 C	+2.71 C
2003	5.1 C	+0.70 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1907 to 2003. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 75 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Granville
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.5) per decade	1907 to 2003	75	Rise
Mean daily maximum	0.16 C (0.04 to 0.28) per decade	0.3 F (0.1 to 0.5) per decade	1907 to 2003	75	Rise
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1907 to 2003	75	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

1907 to 2004

Yearly extremes at Granville: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.6 C (114.1 F)	1936	37.8 C (100.0 F)	98
Coldest night (TNn)	-46.7 C (-52.1 F)	1936	-35.6 C (-32.1 F)	98
Wettest day (Rx1day)	94.0 mm (3.7 in)	1968	39.9 mm (1.6 in)	98
Wettest five days (Rx5day)	194.4 mm (7.7 in)	1991	60.0 mm (2.4 in)	98
Longest dry spell (CDD)	79 days	1909	35 days	98

Hottest day (TXx)

The hottest day of the year at Granville, 1907 to 2004. The record is 45.6 C (114.1 F) in 1936, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Granville by year
Year	Hottest day (TXx)
1907	36.1 C (97.0 F)
1908	37.8 C (100.0 F)
1909	35.6 C (96.1 F)
1910	40.0 C (104.0 F)
1911	36.7 C (98.1 F)
1912	37.2 C (99.0 F)
1913	36.7 C (98.1 F)
1914	37.2 C (99.0 F)
1915	34.4 C (93.9 F)
1916	35.0 C (95.0 F)
1917	38.3 C (100.9 F)
1918	37.8 C (100.0 F)
1919	38.9 C (102.0 F)
1920	37.8 C (100.0 F)
1921	40.0 C (104.0 F)
1922	36.1 C (97.0 F)
1923	36.7 C (98.1 F)
1924	36.7 C (98.1 F)
1925	37.8 C (100.0 F)
1926	40.0 C (104.0 F)
1927	33.3 C (91.9 F)
1928	35.0 C (95.0 F)
1929	40.6 C (105.1 F)
1930	38.9 C (102.0 F)
1931	41.7 C (107.1 F)
1932	39.4 C (102.9 F)
1933	40.0 C (104.0 F)
1934	40.6 C (105.1 F)
1935	37.2 C (99.0 F)
1936	45.6 C (114.1 F)
1937	39.4 C (102.9 F)
1938	36.7 C (98.1 F)
1939	40.0 C (104.0 F)
1940	37.8 C (100.0 F)
1941	38.3 C (100.9 F)
1942	37.8 C (100.0 F)
1943	34.4 C (93.9 F)
1944	33.9 C (93.0 F)
1945	36.1 C (97.0 F)
1946	39.4 C (102.9 F)
1947	38.9 C (102.0 F)
1948	38.3 C (100.9 F)
1949	41.1 C (106.0 F)
1950	35.0 C (95.0 F)
1951	37.2 C (99.0 F)
1952	37.8 C (100.0 F)
1953	35.0 C (95.0 F)
1954	35.0 C (95.0 F)
1955	37.2 C (99.0 F)
1956	35.6 C (96.1 F)
1957	37.8 C (100.0 F)
1958	40.0 C (104.0 F)
1959	38.9 C (102.0 F)
1960	41.1 C (106.0 F)
1961	38.9 C (102.0 F)
1962	33.3 C (91.9 F)
1963	36.7 C (98.1 F)
1964	38.9 C (102.0 F)
1965	37.2 C (99.0 F)
1966	36.7 C (98.1 F)
1967	36.7 C (98.1 F)
1968	37.2 C (99.0 F)
1969	39.4 C (102.9 F)
1970	36.7 C (98.1 F)
1971	39.4 C (102.9 F)
1972	37.8 C (100.0 F)
1973	36.7 C (98.1 F)
1974	38.3 C (100.9 F)
1975	39.4 C (102.9 F)
1976	39.4 C (102.9 F)
1977	40.6 C (105.1 F)
1978	40.0 C (104.0 F)
1979	38.3 C (100.9 F)
1980	37.8 C (100.0 F)
1981	37.8 C (100.0 F)
1982	35.6 C (96.1 F)
1983	38.9 C (102.0 F)
1984	36.7 C (98.1 F)
1985	34.4 C (93.9 F)
1986	37.2 C (99.0 F)
1987	37.8 C (100.0 F)
1988	42.2 C (108.0 F)
1989	38.9 C (102.0 F)
1990	37.8 C (100.0 F)
1991	38.3 C (100.9 F)
1992	39.4 C (102.9 F)
1993	34.4 C (93.9 F)
1994	37.2 C (99.0 F)
1995	37.2 C (99.0 F)
1996	37.2 C (99.0 F)
1997	35.6 C (96.1 F)
1998	36.7 C (98.1 F)
1999	35.6 C (96.1 F)
2000	35.6 C (96.1 F)
2001	39.4 C (102.9 F)
2002	35.0 C (95.0 F)
2003	39.4 C (102.9 F)
2004	5.6 C (42.1 F)

Coldest night (TNn)

The coldest night of the year at Granville, 1907 to 2004. The record is -46.7 C (-52.1 F) in 1936, marked on the chart; the median year is -35.6 C (-32.1 F).

Coldest night (TNn) at Granville by year
Year	Coldest night (TNn)
1907	-42.2 C (-44.0 F)
1908	-32.8 C (-27.0 F)
1909	-38.9 C (-38.0 F)
1910	-35.0 C (-31.0 F)
1911	-37.8 C (-36.0 F)
1912	-41.1 C (-42.0 F)
1913	-32.8 C (-27.0 F)
1914	-35.6 C (-32.1 F)
1915	-38.3 C (-36.9 F)
1916	-41.7 C (-43.1 F)
1917	-40.0 C (-40.0 F)
1918	-37.8 C (-36.0 F)
1919	-40.0 C (-40.0 F)
1920	-36.1 C (-33.0 F)
1921	-31.1 C (-24.0 F)
1922	-40.6 C (-41.1 F)
1923	-34.4 C (-29.9 F)
1924	-38.9 C (-38.0 F)
1925	-32.8 C (-27.0 F)
1926	-33.3 C (-27.9 F)
1927	-33.3 C (-27.9 F)
1928	-34.4 C (-29.9 F)
1929	-40.6 C (-41.1 F)
1930	-37.2 C (-35.0 F)
1931	-27.8 C (-18.0 F)
1932	-33.3 C (-27.9 F)
1933	-38.3 C (-36.9 F)
1934	-39.4 C (-38.9 F)
1935	-38.3 C (-36.9 F)
1936	-46.7 C (-52.1 F)
1937	-39.4 C (-38.9 F)
1938	-37.8 C (-36.0 F)
1939	-40.0 C (-40.0 F)
1940	-33.3 C (-27.9 F)
1941	-35.6 C (-32.1 F)
1942	-33.9 C (-29.0 F)
1943	-37.2 C (-35.0 F)
1944	-37.2 C (-35.0 F)
1945	-35.0 C (-31.0 F)
1946	-37.2 C (-35.0 F)
1947	-33.3 C (-27.9 F)
1948	-35.6 C (-32.1 F)
1949	-38.9 C (-38.0 F)
1950	-39.4 C (-38.9 F)
1951	-38.3 C (-36.9 F)
1952	-34.4 C (-29.9 F)
1953	-30.0 C (-22.0 F)
1954	-37.8 C (-36.0 F)
1955	-34.4 C (-29.9 F)
1956	-32.8 C (-27.0 F)
1957	-33.9 C (-29.0 F)
1958	-34.4 C (-29.9 F)
1959	-35.0 C (-31.0 F)
1960	-31.7 C (-25.1 F)
1961	-33.3 C (-27.9 F)
1962	-36.1 C (-33.0 F)
1963	-34.4 C (-29.9 F)
1964	-32.2 C (-26.0 F)
1965	-33.9 C (-29.0 F)
1966	-39.4 C (-38.9 F)
1967	-40.0 C (-40.0 F)
1968	-40.0 C (-40.0 F)
1969	-33.3 C (-27.9 F)
1970	-37.2 C (-35.0 F)
1971	-36.1 C (-33.0 F)
1972	-36.7 C (-34.1 F)
1973	-33.9 C (-29.0 F)
1974	-36.7 C (-34.1 F)
1975	-32.2 C (-26.0 F)
1976	-22.2 C (-8.0 F)
1977	-35.6 C (-32.1 F)
1978	-36.1 C (-33.0 F)
1979	-39.4 C (-38.9 F)
1980	-37.8 C (-36.0 F)
1981	-31.7 C (-25.1 F)
1982	-35.0 C (-31.0 F)
1983	-40.0 C (-40.0 F)
1984	-33.3 C (-27.9 F)
1985	-36.7 C (-34.1 F)
1986	-33.9 C (-29.0 F)
1987	-23.9 C (-11.0 F)
1988	-32.2 C (-26.0 F)
1989	-37.2 C (-35.0 F)
1990	-35.0 C (-31.0 F)
1991	-32.2 C (-26.0 F)
1992	-29.4 C (-20.9 F)
1993	-35.6 C (-32.1 F)
1994	-38.9 C (-38.0 F)
1995	-30.6 C (-23.1 F)
1996	-33.3 C (-27.9 F)
1997	-35.6 C (-32.1 F)
1998	-31.1 C (-24.0 F)
1999	-30.6 C (-23.1 F)
2000	-30.0 C (-22.0 F)
2001	-24.4 C (-11.9 F)
2002	-26.1 C (-15.0 F)
2003	-30.6 C (-23.1 F)
2004	-37.2 C (-35.0 F)

Wettest day (Rx1day)

The wettest day of the year at Granville, 1907 to 2004. The record is 94.0 mm (3.7 in) in 1968, marked on the chart; the median year is 39.9 mm (1.6 in).

Wettest day (Rx1day) at Granville by year
Year	Wettest day (Rx1day)
1907	19.1 mm (0.8 in)
1908	50.8 mm (2.0 in)
1909	34.5 mm (1.4 in)
1910	28.2 mm (1.1 in)
1911	68.8 mm (2.7 in)
1912	36.1 mm (1.4 in)
1913	18.8 mm (0.7 in)
1914	83.3 mm (3.3 in)
1915	46.0 mm (1.8 in)
1916	66.8 mm (2.6 in)
1917	14.5 mm (0.6 in)
1918	26.4 mm (1.0 in)
1919	31.5 mm (1.2 in)
1920	27.2 mm (1.1 in)
1921	39.9 mm (1.6 in)
1922	52.6 mm (2.1 in)
1923	37.1 mm (1.5 in)
1924	27.9 mm (1.1 in)
1925	29.2 mm (1.1 in)
1926	28.2 mm (1.1 in)
1927	38.6 mm (1.5 in)
1928	31.0 mm (1.2 in)
1929	29.0 mm (1.1 in)
1930	63.0 mm (2.5 in)
1931	39.9 mm (1.6 in)
1932	46.7 mm (1.8 in)
1933	40.6 mm (1.6 in)
1934	21.6 mm (0.9 in)
1935	38.6 mm (1.5 in)
1936	28.2 mm (1.1 in)
1937	43.7 mm (1.7 in)
1938	29.2 mm (1.1 in)
1939	37.1 mm (1.5 in)
1940	34.5 mm (1.4 in)
1941	42.9 mm (1.7 in)
1942	25.4 mm (1.0 in)
1943	71.1 mm (2.8 in)
1944	58.7 mm (2.3 in)
1945	20.3 mm (0.8 in)
1946	34.3 mm (1.4 in)
1947	41.1 mm (1.6 in)
1948	59.2 mm (2.3 in)
1949	53.8 mm (2.1 in)
1950	31.2 mm (1.2 in)
1951	66.0 mm (2.6 in)
1952	92.7 mm (3.6 in)
1953	66.0 mm (2.6 in)
1954	61.0 mm (2.4 in)
1955	27.9 mm (1.1 in)
1956	39.1 mm (1.5 in)
1957	44.5 mm (1.8 in)
1958	33.0 mm (1.3 in)
1959	35.3 mm (1.4 in)
1960	55.1 mm (2.2 in)
1961	28.4 mm (1.1 in)
1962	28.4 mm (1.1 in)
1963	44.7 mm (1.8 in)
1964	44.2 mm (1.7 in)
1965	37.1 mm (1.5 in)
1966	34.0 mm (1.3 in)
1967	25.9 mm (1.0 in)
1968	94.0 mm (3.7 in)
1969	28.7 mm (1.1 in)
1970	53.6 mm (2.1 in)
1971	51.1 mm (2.0 in)
1972	22.4 mm (0.9 in)
1973	38.4 mm (1.5 in)
1974	24.9 mm (1.0 in)
1975	55.1 mm (2.2 in)
1976	23.1 mm (0.9 in)
1977	42.4 mm (1.7 in)
1978	52.3 mm (2.1 in)
1979	49.8 mm (2.0 in)
1980	41.7 mm (1.6 in)
1981	64.8 mm (2.6 in)
1982	66.0 mm (2.6 in)
1983	39.4 mm (1.6 in)
1984	30.2 mm (1.2 in)
1985	63.5 mm (2.5 in)
1986	30.0 mm (1.2 in)
1987	52.8 mm (2.1 in)
1988	22.4 mm (0.9 in)
1989	45.7 mm (1.8 in)
1990	54.6 mm (2.1 in)
1991	77.5 mm (3.1 in)
1992	26.7 mm (1.1 in)
1993	50.8 mm (2.0 in)
1994	45.7 mm (1.8 in)
1995	45.7 mm (1.8 in)
1996	40.9 mm (1.6 in)
1997	55.9 mm (2.2 in)
1998	47.0 mm (1.9 in)
1999	50.8 mm (2.0 in)
2000	64.8 mm (2.6 in)
2001	24.9 mm (1.0 in)
2002	19.1 mm (0.8 in)
2003	40.6 mm (1.6 in)
2004	16.5 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Granville, 1907 to 2004. The record is 194.4 mm (7.7 in) in 1991, marked on the chart; the median year is 60.0 mm (2.4 in).

Wettest five days (Rx5day) at Granville by year
Year	Wettest five days (Rx5day)
1907	43.7 mm (1.7 in)
1908	50.8 mm (2.0 in)
1909	42.2 mm (1.7 in)
1910	28.2 mm (1.1 in)
1911	89.4 mm (3.5 in)
1912	41.6 mm (1.6 in)
1913	23.9 mm (0.9 in)
1914	132.8 mm (5.2 in)
1915	66.5 mm (2.6 in)
1916	85.6 mm (3.4 in)
1917	22.9 mm (0.9 in)
1918	41.6 mm (1.6 in)
1919	50.7 mm (2.0 in)
1920	36.1 mm (1.4 in)
1921	75.7 mm (3.0 in)
1922	61.2 mm (2.4 in)
1923	45.2 mm (1.8 in)
1924	34.8 mm (1.4 in)
1925	52.1 mm (2.1 in)
1926	47.0 mm (1.9 in)
1927	76.9 mm (3.0 in)
1928	65.8 mm (2.6 in)
1929	48.1 mm (1.9 in)
1930	78.7 mm (3.1 in)
1931	57.7 mm (2.3 in)
1932	56.6 mm (2.2 in)
1933	77.2 mm (3.0 in)
1934	39.4 mm (1.6 in)
1935	51.6 mm (2.0 in)
1936	38.9 mm (1.5 in)
1937	106.4 mm (4.2 in)
1938	61.0 mm (2.4 in)
1939	62.3 mm (2.5 in)
1940	49.8 mm (2.0 in)
1941	64.7 mm (2.5 in)
1942	51.3 mm (2.0 in)
1943	93.2 mm (3.7 in)
1944	91.0 mm (3.6 in)
1945	31.2 mm (1.2 in)
1946	40.1 mm (1.6 in)
1947	43.0 mm (1.7 in)
1948	70.2 mm (2.8 in)
1949	57.1 mm (2.2 in)
1950	45.9 mm (1.8 in)
1951	84.9 mm (3.3 in)
1952	101.6 mm (4.0 in)
1953	87.1 mm (3.4 in)
1954	93.5 mm (3.7 in)
1955	41.4 mm (1.6 in)
1956	45.5 mm (1.8 in)
1957	75.2 mm (3.0 in)
1958	76.7 mm (3.0 in)
1959	60.0 mm (2.4 in)
1960	85.9 mm (3.4 in)
1961	46.5 mm (1.8 in)
1962	57.9 mm (2.3 in)
1963	79.7 mm (3.1 in)
1964	59.9 mm (2.4 in)
1965	50.6 mm (2.0 in)
1966	46.4 mm (1.8 in)
1967	54.3 mm (2.1 in)
1968	98.3 mm (3.9 in)
1969	63.4 mm (2.5 in)
1970	63.8 mm (2.5 in)
1971	86.7 mm (3.4 in)
1972	37.6 mm (1.5 in)
1973	82.3 mm (3.2 in)
1974	44.4 mm (1.7 in)
1975	109.4 mm (4.3 in)
1976	28.6 mm (1.1 in)
1977	59.4 mm (2.3 in)
1978	57.4 mm (2.3 in)
1979	63.0 mm (2.5 in)
1980	47.3 mm (1.9 in)
1981	67.3 mm (2.6 in)
1982	111.5 mm (4.4 in)
1983	55.1 mm (2.2 in)
1984	69.9 mm (2.8 in)
1985	63.5 mm (2.5 in)
1986	66.8 mm (2.6 in)
1987	80.2 mm (3.2 in)
1988	32.3 mm (1.3 in)
1989	81.3 mm (3.2 in)
1990	80.7 mm (3.2 in)
1991	194.4 mm (7.7 in)
1992	37.8 mm (1.5 in)
1993	66.6 mm (2.6 in)
1994	71.4 mm (2.8 in)
1995	50.1 mm (2.0 in)
1996	40.9 mm (1.6 in)
1997	78.0 mm (3.1 in)
1998	81.9 mm (3.2 in)
1999	88.1 mm (3.5 in)
2000	95.8 mm (3.8 in)
2001	47.3 mm (1.9 in)
2002	33.0 mm (1.3 in)
2003	63.0 mm (2.5 in)
2004	18.1 mm (0.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Granville, 1907 to 2004. The record is 79 days in 1909, marked on the chart; the median year is 35 days.

Longest dry spell (CDD) at Granville by year
Year	Longest dry spell (CDD)
1907	46 days
1908	34 days
1909	79 days
1910	26 days
1911	57 days
1912	63 days
1913	31 days
1914	25 days
1915	46 days
1916	34 days
1917	49 days
1918	49 days
1919	21 days
1920	33 days
1921	19 days
1922	31 days
1923	31 days
1924	41 days
1925	39 days
1926	27 days
1927	23 days
1928	19 days
1929	31 days
1930	21 days
1931	31 days
1932	28 days
1933	23 days
1934	59 days
1935	42 days
1936	55 days
1937	40 days
1938	40 days
1939	32 days
1940	47 days
1941	47 days
1942	53 days
1943	53 days
1944	33 days
1945	70 days
1946	49 days
1947	24 days
1948	46 days
1949	27 days
1950	34 days
1951	31 days
1952	69 days
1953	26 days
1954	68 days
1955	27 days
1956	25 days
1957	25 days
1958	23 days
1959	32 days
1960	55 days
1961	68 days
1962	23 days
1963	45 days
1964	43 days
1965	46 days
1966	60 days
1967	24 days
1968	39 days
1969	42 days
1970	28 days
1971	40 days
1972	28 days
1973	26 days
1974	40 days
1975	16 days
1976	57 days
1977	42 days
1978	39 days
1979	26 days
1980	49 days
1981	28 days
1982	27 days
1983	22 days
1984	38 days
1985	22 days
1986	28 days
1987	39 days
1988	30 days
1989	34 days
1990	35 days
1991	42 days
1992	32 days
1993	37 days
1994	42 days
1995	27 days
1996	22 days
1997	42 days
1998	42 days
1999	65 days
2000	26 days
2001	42 days
2002	48 days
2003	60 days
2004	17 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

75 years with a frost

Across 75 years with a frost, the median last spring frost at Granville falls on 22 May and the median first autumn frost on 16 September, which leaves a median of 118 days between them.

In 1963 to 2003 the median growing season was 122 days. That is 12 days more than in 1907 to 1945.

Fitted over all years, the growing season changes by +2.0 days per decade at this station.

Frost dates and growing season at Granville
Measure	Median, all years	Earliest period (1907 to 1945)	Recent period (1963 to 2003)	Recent against earliest	Fitted trend
Last spring frost	22 May	25 May	17 May	8 days earlier	-0.9 days per decade
First autumn frost	16 September	14 September	19 September	5 days later	+1.2 days per decade
Growing days	118 days	110 days	122 days	12 days more	+2.0 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

68 years, 1907 to 2003

A day with at least 40.3 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 96.4 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Granville: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.3 mm (1.6 in)
5 years	55.3 mm (2.2 in)
10 years	65.3 mm (2.6 in)
25 years	77.8 mm (3.1 in)
50 years	87.1 mm (3.4 in)
100 years	96.4 mm (3.8 in)	Longer than the 68 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, 68 years of values from 1907 to 2003.

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: 94.0 mm (3.7 in) in 1968; 92.7 mm (3.6 in) in 1952; 83.3 mm (3.3 in) in 1914.

Station Changes

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

Download the Data

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