Dalton Weather Records (USC00092493)

Record envelope, standing records and threshold days for Dalton (USC00092493), Georgia, United States, with 71 years of record.

Key Facts for Dalton

Dalton (USC00092493) is a weather station in Georgia, United States at 34.77 latitude and -84.89 longitude, 244 m (799 ft) above sea level.
The station reports from 1935 to 2005, 71 years of record.
1,464 records set at Dalton still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Dalton set a daily record snowfall of 15.2 cm (6.0 in) on 29 January 2005.

About the Station

Location: Georgia, United States, 34.77 latitude, -84.89 longitude.
Elevation: 244 m (799 ft).
Period of record: 1935 to 2005, 71 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 Dalton. 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 Dalton, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	26.1 C (79.0 F)	-23.3 C (-9.9 F)	n/a	n/a
Feb	26.1 C (79.0 F)	-18.3 C (-0.9 F)	n/a	n/a
Mar	30.6 C (87.1 F)	-13.9 C (7.0 F)	n/a	n/a
Apr	32.8 C (91.0 F)	-4.4 C (24.1 F)	n/a	n/a
May	37.2 C (99.0 F)	0.6 C (33.1 F)	n/a	n/a
Jun	39.4 C (102.9 F)	5.6 C (42.1 F)	n/a	n/a
Jul	39.4 C (102.9 F)	10.6 C (51.1 F)	n/a	n/a
Aug	40.0 C (104.0 F)	10.6 C (51.1 F)	n/a	n/a
Sep	38.9 C (102.0 F)	0.0 C (32.0 F)	n/a	n/a
Oct	34.4 C (93.9 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	30.6 C (87.1 F)	-11.1 C (12.0 F)	n/a	n/a
Dec	25.6 C (78.1 F)	-20.0 C (-4.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Dalton still stand. 1940 holds the most, with 50.

Standing records at Dalton by the year they were set
Year set	Standing records
1935	19
1936	40
1937	47
1938	28
1939	18
1940	50
1941	24
1942	18
1943	25
1944	23
1945	16
1946	19
1947	30
1948	22
1949	25
1950	23
1951	23
1952	27
1953	29
1954	22
1955	19
1956	19
1957	21
1958	21
1959	23
1960	28
1961	20
1962	23
1963	26
1964	19
1965	13
1966	14
1967	44
1968	17
1969	11
1970	16
1971	17
1972	12
1973	9
1974	23
1975	11
1976	20
1977	15
1978	15
1979	20
1980	23
1981	16
1982	17
1983	28
1984	25
1985	21
1986	23
1987	16
1988	24
1989	34
1990	13
1991	25
1992	12
1993	24
1994	9
1995	28
1996	18
1997	13
1998	15
1999	18
2000	12
2001	5
2002	23
2003	9
2004	9

All-Time Record Progression

5 new records

5 all-time records were set at Dalton between 14 September 1973 and 19 June 2003. Each dot is a new record.

When Dalton set new all-time records
Date	Kind	Detail
1973-09-14	Record daily precipitation	Record daily precipitation 132.1 mm (5.2 in)
1983-12-25	Record low maximum temperature	Record low maximum temperature -12.8 C (9.0 F)
1985-01-21	Record low maximum temperature	Record low maximum temperature -16.7 C (1.9 F)
1985-01-21	Record low minimum temperature	Record low minimum temperature -23.3 C (-9.9 F)
2003-06-19	Record daily precipitation	Record daily precipitation 134.4 mm (5.3 in)

Wettest Day of Each Month

Jun: 134.4 mm (5.3 in)

The wettest day on record for each calendar month at Dalton. The most was 134.4 mm (5.3 in) on 19 June 2003.

Record daily precipitation for each month at Dalton
Month	Record daily precipitation (mm)	Date
Jan	107.7 mm (4.2 in)	16 January 1954
Feb	93.0 mm (3.7 in)	13 February 1945
Mar	109.2 mm (4.3 in)	15 March 1964
Apr	100.3 mm (3.9 in)	2 April 1936
May	96.0 mm (3.8 in)	22 May 2003
Jun	134.4 mm (5.3 in)	19 June 2003
Jul	94.0 mm (3.7 in)	26 July 1943
Aug	82.3 mm (3.2 in)	13 August 1966
Sep	132.1 mm (5.2 in)	14 September 1973
Oct	101.6 mm (4.0 in)	3 October 1962
Nov	101.9 mm (4.0 in)	11 November 1946
Dec	94.2 mm (3.7 in)	12 December 1961

Period of Record Coverage

1935 to 2005

71 years of record at Dalton, 1935 to 2005. 14 years have data for under 90 percent of days and are left out of rankings: 1935, 1950, 1955, 1976, 1977, 1980, 1994, 1996 and others.

Days with data per year at Dalton
Year	Days with data	Share of year	Complete
1935	107	29%	No
1936	360	98%	Yes
1937	364	100%	Yes
1938	363	99%	Yes
1939	364	100%	Yes
1940	361	99%	Yes
1941	362	99%	Yes
1942	364	100%	Yes
1943	360	99%	Yes
1944	364	99%	Yes
1945	358	98%	Yes
1946	363	99%	Yes
1947	363	99%	Yes
1948	352	96%	Yes
1949	332	91%	Yes
1950	322	88%	No
1951	363	99%	Yes
1952	363	99%	Yes
1953	365	100%	Yes
1954	334	92%	Yes
1955	271	74%	No
1956	364	99%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	361	99%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	365	100%	Yes
1965	365	100%	Yes
1966	364	100%	Yes
1967	365	100%	Yes
1968	335	92%	Yes
1969	365	100%	Yes
1970	355	97%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	334	92%	Yes
1974	362	99%	Yes
1975	333	91%	Yes
1976	292	80%	No
1977	280	77%	No
1978	360	99%	Yes
1979	361	99%	Yes
1980	316	86%	No
1981	362	99%	Yes
1982	359	98%	Yes
1983	360	99%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	364	100%	Yes
1987	364	100%	Yes
1988	366	100%	Yes
1989	364	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	317	87%	No
1995	359	98%	Yes
1996	323	88%	No
1997	354	97%	Yes
1998	347	95%	Yes
1999	356	98%	Yes
2000	241	66%	No
2001	215	59%	No
2002	320	88%	No
2003	292	80%	No
2004	247	67%	No
2005	22	6%	No

Latest Records

Latest records at Dalton
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 January 2005	Dalton, US	daily snowfall	15.2 cm (6.0 in)	6.3 cm (2.5 in)	39 years	27 of 100 (Routine)
14 January 2005	Dalton, US	daily rain	47.5 mm (1.9 in)	1.0 mm (0.04 in)	47 years	21 of 100 (Routine)
24 November 2004	Dalton, US	daily rain	65.0 mm (2.6 in)	2.8 mm (0.11 in)	21 years	14 of 100 (Routine)
3 November 2004	Dalton, US	daily rain	84.1 mm (3.3 in)	26.7 mm (1.1 in)	56 years	40 of 100 (Notable)
3 November 2004	Dalton, US	daily high min	18.9 C (66.0 F)	0.6 C (1.1 F)	43 years	20 of 100 (Routine)
2 November 2004	Dalton, US	daily high min (Tie)	18.3 C (64.9 F)	tie	33 years	4 of 100 (Routine)
15 August 2004	Dalton, US	daily low min	13.3 C (55.9 F)	0.6 C (1.1 F)	41 years	21 of 100 (Routine)
14 August 2004	Dalton, US	daily low max	23.9 C (75.0 F)	1.7 C (3.1 F)	40 years	25 of 100 (Routine)
14 August 2004	Dalton, US	daily low min (Tie)	13.3 C (55.9 F)	tie	37 years	4 of 100 (Routine)
13 August 2004	Dalton, US	daily low max	20.0 C (68.0 F)	3.9 C (7.0 F)	34 years	31 of 100 (Routine)
1 July 2004	Dalton, US	daily low max	23.9 C (75.0 F)	1.7 C (3.1 F)	16 years	16 of 100 (Routine)
29 June 2004	Dalton, US	daily low max	23.9 C (75.0 F)	1.1 C (2.0 F)	47 years	24 of 100 (Routine)
28 June 2004	Dalton, US	daily low max	22.8 C (73.0 F)	2.2 C (4.0 F)	30 years	23 of 100 (Routine)
25 June 2004	Dalton, US	daily rain	35.3 mm (1.4 in)	5.3 mm (0.21 in)	17 years	15 of 100 (Routine)
16 June 2004	Dalton, US	daily high min	22.2 C (72.0 F)	0.5 C (0.9 F)	13 years	11 of 100 (Routine)
28 May 2004	Dalton, US	daily high min (Tie)	21.7 C (71.1 F)	tie	13 years	2 of 100 (Routine)
29 March 2004	Dalton, US	daily high max (Tie)	28.9 C (84.0 F)	tie	59 years	6 of 100 (Routine)
5 March 2004	Dalton, US	daily high min (Tie)	15.0 C (59.0 F)	tie	59 years	6 of 100 (Routine)
26 February 2004	Dalton, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	66 years	42 of 100 (Notable)
26 February 2004	Dalton, US	daily snow depth	7.6 cm (3.0 in)	7.6 cm (3.0 in)	54 years	20 of 100 (Routine)

Climate Trend

46 complete years, 1936 to 1999

One stripe for each of 46 complete years at Dalton, 1936 to 1999. Blue stripes are years cooler than the station's own mean of 15.6 C (60.1 F); red stripes are warmer. The coolest year was 1979, at 14.2 C (57.6 F), and the warmest was 1998, at 16.8 C (62.3 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Dalton as warming stripes, 1936 to 1999
Year	Annual mean temperature	Difference from the station mean
1936	16.5 C	+0.87 C
1937	16.1 C	+0.51 C
1938	16.6 C	+0.99 C
1939	16.2 C	+0.60 C
1940	15.0 C	-0.58 C
1941	16.2 C	+0.62 C
1942	15.5 C	-0.08 C
1943	15.9 C	+0.27 C
1944	15.9 C	+0.35 C
1945	16.3 C	+0.68 C
1946	16.6 C	+1.03 C
1947	15.2 C	-0.36 C
1948	15.9 C	+0.36 C
1951	15.8 C	+0.23 C
1952	15.7 C	+0.09 C
1953	16.2 C	+0.58 C
1956	16.3 C	+0.69 C
1957	16.4 C	+0.77 C
1958	14.8 C	-0.75 C
1959	15.9 C	+0.28 C
1960	14.7 C	-0.84 C
1961	15.2 C	-0.42 C
1962	15.5 C	-0.10 C
1963	14.6 C	-1.01 C
1964	15.0 C	-0.54 C
1965	15.4 C	-0.17 C
1966	14.7 C	-0.92 C
1967	14.8 C	-0.83 C
1969	14.7 C	-0.91 C
1970	15.3 C	-0.30 C
1971	15.3 C	-0.29 C
1972	15.1 C	-0.51 C
1978	14.7 C	-0.90 C
1979	14.2 C	-1.36 C
1981	14.5 C	-1.10 C
1983	14.3 C	-1.24 C
1987	16.2 C	+0.66 C
1988	15.6 C	+0.03 C
1989	15.4 C	-0.18 C
1990	16.8 C	+1.23 C
1991	16.3 C	+0.74 C
1992	15.2 C	-0.43 C
1993	15.5 C	-0.05 C
1995	16.1 C	+0.50 C
1998	16.8 C	+1.26 C
1999	16.3 C	+0.73 C

The fitted trend in annual mean temperature here over 1936 to 1999 is -0.1 C (-0.2 to 0.1) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.1) per decade. The slope is a straight line fitted to 46 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Dalton
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.1 C (-0.2 to 0.1) per decade	-0.1 F (-0.3 to 0.1) per decade	1936 to 1999	46	Not clearly different from zero
Mean daily maximum	-0.2 C (-0.3 to -0.1) per decade	-0.3 F (-0.6 to -0.1) per decade	1936 to 1999	46	Fall
Mean daily minimum	0.08 C (-0.04 to 0.20) per decade	0.1 F (-0.1 to 0.4) per decade	1936 to 1999	46	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

1935 to 2005

Yearly extremes at Dalton: 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)	1947	36.7 C (98.1 F)	71
Coldest night (TNn)	-23.3 C (-9.9 F)	1985	-12.2 C (10.0 F)	71
Wettest day (Rx1day)	134.4 mm (5.3 in)	2003	76.5 mm (3.0 in)	71
Wettest five days (Rx5day)	183.9 mm (7.2 in)	1938	123.9 mm (4.9 in)	71
Longest dry spell (CDD)	60 days	2000	19 days	71

Hottest day (TXx)

The hottest day of the year at Dalton, 1935 to 2005. The record is 40.0 C (104.0 F) in 1947, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Dalton by year
Year	Hottest day (TXx)
1935	34.4 C (93.9 F)
1936	39.4 C (102.9 F)
1937	36.7 C (98.1 F)
1938	37.2 C (99.0 F)
1939	37.2 C (99.0 F)
1940	37.2 C (99.0 F)
1941	37.2 C (99.0 F)
1942	36.1 C (97.0 F)
1943	37.2 C (99.0 F)
1944	37.8 C (100.0 F)
1945	36.7 C (98.1 F)
1946	35.0 C (95.0 F)
1947	40.0 C (104.0 F)
1948	37.8 C (100.0 F)
1949	35.0 C (95.0 F)
1950	35.0 C (95.0 F)
1951	36.7 C (98.1 F)
1952	39.4 C (102.9 F)
1953	36.1 C (97.0 F)
1954	38.9 C (102.0 F)
1955	36.1 C (97.0 F)
1956	37.2 C (99.0 F)
1957	37.8 C (100.0 F)
1958	36.7 C (98.1 F)
1959	36.7 C (98.1 F)
1960	35.6 C (96.1 F)
1961	34.4 C (93.9 F)
1962	36.7 C (98.1 F)
1963	35.0 C (95.0 F)
1964	37.2 C (99.0 F)
1965	36.1 C (97.0 F)
1966	37.2 C (99.0 F)
1967	33.9 C (93.0 F)
1968	38.3 C (100.9 F)
1969	37.2 C (99.0 F)
1970	36.7 C (98.1 F)
1971	36.1 C (97.0 F)
1972	34.4 C (93.9 F)
1973	34.4 C (93.9 F)
1974	35.0 C (95.0 F)
1975	35.6 C (96.1 F)
1976	34.4 C (93.9 F)
1977	36.7 C (98.1 F)
1978	35.6 C (96.1 F)
1979	34.4 C (93.9 F)
1980	38.3 C (100.9 F)
1981	36.7 C (98.1 F)
1982	35.0 C (95.0 F)
1983	39.4 C (102.9 F)
1984	35.0 C (95.0 F)
1985	36.1 C (97.0 F)
1986	38.9 C (102.0 F)
1987	38.3 C (100.9 F)
1988	39.4 C (102.9 F)
1989	34.4 C (93.9 F)
1990	37.2 C (99.0 F)
1991	35.0 C (95.0 F)
1992	34.4 C (93.9 F)
1993	38.3 C (100.9 F)
1994	34.4 C (93.9 F)
1995	37.8 C (100.0 F)
1996	35.6 C (96.1 F)
1997	36.1 C (97.0 F)
1998	36.1 C (97.0 F)
1999	37.8 C (100.0 F)
2000	38.3 C (100.9 F)
2001	33.3 C (91.9 F)
2002	37.2 C (99.0 F)
2003	32.8 C (91.0 F)
2004	32.8 C (91.0 F)
2005	21.1 C (70.0 F)

Coldest night (TNn)

The coldest night of the year at Dalton, 1935 to 2005. The record is -23.3 C (-9.9 F) in 1985, marked on the chart; the median year is -12.2 C (10.0 F).

Coldest night (TNn) at Dalton by year
Year	Coldest night (TNn)
1935	-12.2 C (10.0 F)
1936	-21.1 C (-6.0 F)
1937	-12.2 C (10.0 F)
1938	-11.1 C (12.0 F)
1939	-8.9 C (16.0 F)
1940	-22.2 C (-8.0 F)
1941	-8.3 C (17.1 F)
1942	-13.9 C (7.0 F)
1943	-12.2 C (10.0 F)
1944	-8.9 C (16.0 F)
1945	-10.6 C (12.9 F)
1946	-8.3 C (17.1 F)
1947	-10.6 C (12.9 F)
1948	-12.8 C (9.0 F)
1949	-7.8 C (18.0 F)
1950	-10.0 C (14.0 F)
1951	-15.0 C (5.0 F)
1952	-9.4 C (15.1 F)
1953	-11.1 C (12.0 F)
1954	-10.0 C (14.0 F)
1955	-11.1 C (12.0 F)
1956	-7.8 C (18.0 F)
1957	-14.4 C (6.1 F)
1958	-17.8 C (0.0 F)
1959	-13.9 C (7.0 F)
1960	-13.3 C (8.1 F)
1961	-14.4 C (6.1 F)
1962	-17.8 C (0.0 F)
1963	-20.6 C (-5.1 F)
1964	-12.2 C (10.0 F)
1965	-12.8 C (9.0 F)
1966	-20.0 C (-4.0 F)
1967	-14.4 C (6.1 F)
1968	-10.0 C (14.0 F)
1969	-11.7 C (10.9 F)
1970	-14.4 C (6.1 F)
1971	-13.3 C (8.1 F)
1972	-16.1 C (3.0 F)
1973	-11.7 C (10.9 F)
1974	-7.2 C (19.0 F)
1975	-11.1 C (12.0 F)
1976	-13.9 C (7.0 F)
1977	-11.7 C (10.9 F)
1978	-13.3 C (8.1 F)
1979	-13.3 C (8.1 F)
1980	-12.2 C (10.0 F)
1981	-14.4 C (6.1 F)
1982	-20.6 C (-5.1 F)
1983	-20.0 C (-4.0 F)
1984	-12.8 C (9.0 F)
1985	-23.3 C (-9.9 F)
1986	-14.4 C (6.1 F)
1987	-9.4 C (15.1 F)
1988	-11.7 C (10.9 F)
1989	-16.1 C (3.0 F)
1990	-7.8 C (18.0 F)
1991	-11.7 C (10.9 F)
1992	-11.1 C (12.0 F)
1993	-13.9 C (7.0 F)
1994	-17.2 C (1.0 F)
1995	-11.1 C (12.0 F)
1996	-16.1 C (3.0 F)
1997	-11.1 C (12.0 F)
1998	-7.8 C (18.0 F)
1999	-12.2 C (10.0 F)
2000	-10.6 C (12.9 F)
2001	-7.2 C (19.0 F)
2002	-8.9 C (16.0 F)
2003	-14.4 C (6.1 F)
2004	-10.0 C (14.0 F)
2005	-9.4 C (15.1 F)

Wettest day (Rx1day)

The wettest day of the year at Dalton, 1935 to 2005. The record is 134.4 mm (5.3 in) in 2003, marked on the chart; the median year is 76.5 mm (3.0 in).

Wettest day (Rx1day) at Dalton by year
Year	Wettest day (Rx1day)
1935	49.0 mm (1.9 in)
1936	100.3 mm (3.9 in)
1937	62.7 mm (2.5 in)
1938	100.3 mm (3.9 in)
1939	58.7 mm (2.3 in)
1940	61.0 mm (2.4 in)
1941	80.5 mm (3.2 in)
1942	77.2 mm (3.0 in)
1943	98.0 mm (3.9 in)
1944	72.1 mm (2.8 in)
1945	93.0 mm (3.7 in)
1946	101.9 mm (4.0 in)
1947	75.4 mm (3.0 in)
1948	61.7 mm (2.4 in)
1949	76.5 mm (3.0 in)
1950	79.2 mm (3.1 in)
1951	66.0 mm (2.6 in)
1952	104.1 mm (4.1 in)
1953	87.6 mm (3.4 in)
1954	107.7 mm (4.2 in)
1955	82.0 mm (3.2 in)
1956	78.7 mm (3.1 in)
1957	75.4 mm (3.0 in)
1958	85.3 mm (3.4 in)
1959	60.7 mm (2.4 in)
1960	66.0 mm (2.6 in)
1961	94.2 mm (3.7 in)
1962	101.6 mm (4.0 in)
1963	89.7 mm (3.5 in)
1964	109.2 mm (4.3 in)
1965	74.9 mm (2.9 in)
1966	83.1 mm (3.3 in)
1967	107.2 mm (4.2 in)
1968	47.0 mm (1.9 in)
1969	89.4 mm (3.5 in)
1970	82.3 mm (3.2 in)
1971	69.1 mm (2.7 in)
1972	68.6 mm (2.7 in)
1973	132.1 mm (5.2 in)
1974	68.8 mm (2.7 in)
1975	94.0 mm (3.7 in)
1976	61.0 mm (2.4 in)
1977	82.0 mm (3.2 in)
1978	60.5 mm (2.4 in)
1979	81.3 mm (3.2 in)
1980	68.1 mm (2.7 in)
1981	64.5 mm (2.5 in)
1982	85.1 mm (3.4 in)
1983	72.9 mm (2.9 in)
1984	75.4 mm (3.0 in)
1985	66.0 mm (2.6 in)
1986	59.4 mm (2.3 in)
1987	46.0 mm (1.8 in)
1988	61.5 mm (2.4 in)
1989	55.9 mm (2.2 in)
1990	85.3 mm (3.4 in)
1991	67.3 mm (2.6 in)
1992	71.9 mm (2.8 in)
1993	34.3 mm (1.4 in)
1994	90.4 mm (3.6 in)
1995	99.1 mm (3.9 in)
1996	96.8 mm (3.8 in)
1997	110.5 mm (4.4 in)
1998	81.3 mm (3.2 in)
1999	62.0 mm (2.4 in)
2000	76.2 mm (3.0 in)
2001	43.2 mm (1.7 in)
2002	73.4 mm (2.9 in)
2003	134.4 mm (5.3 in)
2004	84.1 mm (3.3 in)
2005	47.5 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Dalton, 1935 to 2005. The record is 183.9 mm (7.2 in) in 1938, marked on the chart; the median year is 123.9 mm (4.9 in).

Wettest five days (Rx5day) at Dalton by year
Year	Wettest five days (Rx5day)
1935	74.2 mm (2.9 in)
1936	160.0 mm (6.3 in)
1937	136.2 mm (5.4 in)
1938	183.9 mm (7.2 in)
1939	122.7 mm (4.8 in)
1940	116.1 mm (4.6 in)
1941	122.4 mm (4.8 in)
1942	149.4 mm (5.9 in)
1943	170.5 mm (6.7 in)
1944	123.9 mm (4.9 in)
1945	107.8 mm (4.2 in)
1946	167.9 mm (6.6 in)
1947	162.2 mm (6.4 in)
1948	163.9 mm (6.5 in)
1949	125.6 mm (4.9 in)
1950	159.2 mm (6.3 in)
1951	101.6 mm (4.0 in)
1952	104.1 mm (4.1 in)
1953	128.5 mm (5.1 in)
1954	135.9 mm (5.4 in)
1955	121.2 mm (4.8 in)
1956	120.9 mm (4.8 in)
1957	174.0 mm (6.9 in)
1958	109.0 mm (4.3 in)
1959	116.6 mm (4.6 in)
1960	88.9 mm (3.5 in)
1961	165.8 mm (6.5 in)
1962	117.4 mm (4.6 in)
1963	143.5 mm (5.6 in)
1964	125.6 mm (4.9 in)
1965	125.7 mm (4.9 in)
1966	121.1 mm (4.8 in)
1967	155.0 mm (6.1 in)
1968	88.7 mm (3.5 in)
1969	161.4 mm (6.4 in)
1970	115.0 mm (4.5 in)
1971	121.6 mm (4.8 in)
1972	129.7 mm (5.1 in)
1973	165.1 mm (6.5 in)
1974	96.0 mm (3.8 in)
1975	113.1 mm (4.5 in)
1976	88.9 mm (3.5 in)
1977	159.0 mm (6.3 in)
1978	73.1 mm (2.9 in)
1979	136.9 mm (5.4 in)
1980	157.7 mm (6.2 in)
1981	128.6 mm (5.1 in)
1982	183.3 mm (7.2 in)
1983	117.8 mm (4.6 in)
1984	100.3 mm (3.9 in)
1985	91.9 mm (3.6 in)
1986	86.9 mm (3.4 in)
1987	94.1 mm (3.7 in)
1988	100.8 mm (4.0 in)
1989	165.2 mm (6.5 in)
1990	173.1 mm (6.8 in)
1991	117.6 mm (4.6 in)
1992	114.6 mm (4.5 in)
1993	75.7 mm (3.0 in)
1994	168.9 mm (6.6 in)
1995	163.6 mm (6.4 in)
1996	112.3 mm (4.4 in)
1997	176.3 mm (6.9 in)
1998	121.9 mm (4.8 in)
1999	87.6 mm (3.4 in)
2000	129.6 mm (5.1 in)
2001	86.1 mm (3.4 in)
2002	130.9 mm (5.2 in)
2003	163.3 mm (6.4 in)
2004	161.0 mm (6.3 in)
2005	47.5 mm (1.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Dalton, 1935 to 2005. The record is 60 days in 2000, marked on the chart; the median year is 19 days.

Longest dry spell (CDD) at Dalton by year
Year	Longest dry spell (CDD)
1935	19 days
1936	21 days
1937	11 days
1938	23 days
1939	25 days
1940	24 days
1941	16 days
1942	19 days
1943	25 days
1944	26 days
1945	18 days
1946	18 days
1947	14 days
1948	23 days
1949	14 days
1950	21 days
1951	22 days
1952	30 days
1953	27 days
1954	26 days
1955	24 days
1956	22 days
1957	18 days
1958	27 days
1959	20 days
1960	18 days
1961	16 days
1962	13 days
1963	20 days
1964	20 days
1965	21 days
1966	16 days
1967	18 days
1968	20 days
1969	19 days
1970	20 days
1971	16 days
1972	12 days
1973	15 days
1974	18 days
1975	10 days
1976	15 days
1977	17 days
1978	24 days
1979	15 days
1980	23 days
1981	23 days
1982	12 days
1983	19 days
1984	17 days
1985	18 days
1986	19 days
1987	21 days
1988	24 days
1989	15 days
1990	18 days
1991	18 days
1992	20 days
1993	17 days
1994	13 days
1995	17 days
1996	17 days
1997	20 days
1998	22 days
1999	30 days
2000	60 days
2001	25 days
2002	17 days
2003	15 days
2004	24 days
2005	14 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

46 years with a frost

Across 46 years with a frost, the median last spring frost at Dalton falls on 6 April and the median first autumn frost on 2 November, which leaves a median of 208 days between them.

Fitted over all years, the growing season changes by +0.9 days per decade at this station.

Frost dates and growing season at Dalton
Measure	Median, all years	Earliest period	Recent period (1956 to 1999)	Recent against earliest	Fitted trend
Last spring frost	6 April	n/a	4 April	n/a	-1.5 days per decade
First autumn frost	2 November	n/a	31 October	n/a	-0.5 days per decade
Growing days	208 days	n/a	210 days	n/a	+0.9 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

56 years, 1936 to 2002

A day with at least 78.5 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 124.8 mm (4.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Dalton: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	78.5 mm (3.1 in)
5 years	95.1 mm (3.7 in)
10 years	104.1 mm (4.1 in)
25 years	113.7 mm (4.5 in)
50 years	119.7 mm (4.7 in)
100 years	124.8 mm (4.9 in)	Longer than the 56 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, 56 years of values from 1936 to 2002.

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: 132.1 mm (5.2 in) in 1973; 110.5 mm (4.4 in) in 1997; 109.2 mm (4.3 in) in 1964.

Station Changes

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

Download the Data

Data for Dalton standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Dalton 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).