Suffolk Lake Kilby Weather Records (USC00448192)

Record envelope, standing records and threshold days for Suffolk Lake Kilby (USC00448192), Virginia, United States, with 82 years of record.

Key Facts for Suffolk Lake Kilby

Suffolk Lake Kilby (USC00448192) is a weather station in Virginia, United States at 36.73 latitude and -76.60 longitude, 7 m (22 ft) above sea level.
The station reports from 1945 to 2026, 82 years of record.
1,464 records set at Suffolk Lake Kilby still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Suffolk Lake Kilby set a daily record precipitation of 55.4 mm (2.2 in) on 23 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Virginia, United States, 36.73 latitude, -76.60 longitude.
Elevation: 7 m (22 ft).
Period of record: 1945 to 2026, 82 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

6 days at or beyond a record

The band shows the record high and record low for each calendar day at Suffolk Lake Kilby. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Suffolk Lake Kilby, 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)	-20.6 C (-5.1 F)	23.3 C (73.9 F)	-8.9 C (16.0 F)
Feb	27.2 C (81.0 F)	-15.6 C (3.9 F)	20.0 C (68.0 F)	-9.4 C (15.1 F)
Mar	31.1 C (88.0 F)	-10.0 C (14.0 F)	30.6 C (87.1 F)	-0.6 C (30.9 F)
Apr	34.4 C (93.9 F)	-4.4 C (24.1 F)	31.7 C (89.1 F)	4.4 C (39.9 F)
May	36.7 C (98.1 F)	-1.1 C (30.0 F)	32.8 C (91.0 F)	6.7 C (44.1 F)
Jun	40.6 C (105.1 F)	4.4 C (39.9 F)	35.0 C (95.0 F)	11.1 C (52.0 F)
Jul	39.4 C (102.9 F)	9.4 C (48.9 F)	36.7 C (98.1 F)	18.3 C (64.9 F)
Aug	39.4 C (102.9 F)	7.8 C (46.0 F)	33.3 C (91.9 F)	18.9 C (66.0 F)
Sep	38.3 C (100.9 F)	3.9 C (39.0 F)	35.0 C (95.0 F)	13.9 C (57.0 F)
Oct	36.7 C (98.1 F)	-5.0 C (23.0 F)	29.4 C (84.9 F)	8.9 C (48.0 F)
Nov	29.4 C (84.9 F)	-7.8 C (18.0 F)	n/a	n/a
Dec	26.7 C (80.1 F)	-15.6 C (3.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Suffolk Lake Kilby still stand. 1947 holds the most, with 43.

Standing records at Suffolk Lake Kilby by the year they were set
Year set	Standing records
1945	21
1946	33
1947	43
1948	11
1949	17
1950	41
1951	38
1952	43
1953	34
1954	33
1955	19
1956	22
1957	31
1958	24
1959	27
1960	25
1961	25
1962	18
1963	17
1964	20
1965	19
1966	18
1967	26
1968	11
1969	5
1970	17
1971	17
1972	14
1973	9
1974	19
1975	16
1976	21
1977	19
1978	11
1979	13
1980	15
1981	19
1982	14
1983	16
1984	16
1985	18
1986	18
1987	8
1988	12
1989	23
1990	28
1991	19
1992	14
1993	15
1994	13
1995	7
1996	11
1997	14
1998	18
1999	21
2000	14
2001	15
2002	24
2003	13
2004	26
2005	12
2006	5
2007	13
2008	15
2009	6
2010	17
2011	8
2012	9
2013	6
2014	16
2015	29
2016	6
2017	18
2018	20
2019	19
2020	12
2021	13
2022	14
2023	10
2024	4
2025	10
2026	14

All-Time Record Progression

12 new records

12 all-time records were set at Suffolk Lake Kilby between 17 January 1977 and 27 August 2011. Each dot is a new record.

When Suffolk Lake Kilby set new all-time records
Date	Kind	Detail
1977-01-17	Record low minimum temperature	Record low minimum temperature -15.6 C (3.9 F)
1980-02-06	Record daily snowfall	Record daily snowfall 43.2 cm (17.0 in)
1980-02-06	Record snow depth	Record snow depth 43.2 cm (17.0 in)
1981-01-13	Record low minimum temperature	Record low minimum temperature -16.7 C (1.9 F)
1982-08-11	Record daily precipitation	Record daily precipitation 158.8 mm (6.3 in)
1983-12-25	Record low maximum temperature	Record low maximum temperature -8.9 C (16.0 F)
1985-01-20	Record low minimum temperature	Record low minimum temperature -17.8 C (0.0 F)
1985-01-21	Record low minimum temperature	Record low minimum temperature -20.6 C (-5.1 F)
1994-01-19	Record low maximum temperature	Record low maximum temperature -9.4 C (15.1 F)
1999-09-15	Record daily precipitation	Record daily precipitation 233.4 mm (9.2 in)
2002-07-29	Record high minimum temperature	Record high minimum temperature 28.9 C (84.0 F)
2011-08-27	Record daily precipitation	Record daily precipitation 278.9 mm (11.0 in)

Wettest Day of Each Month

Aug: 278.9 mm (11.0 in)

The wettest day on record for each calendar month at Suffolk Lake Kilby. The most was 278.9 mm (11.0 in) on 27 August 2011.

Record daily precipitation for each month at Suffolk Lake Kilby
Month	Record daily precipitation (mm)	Date
Jan	78.0 mm (3.1 in)	8 January 1967
Feb	106.2 mm (4.2 in)	4 February 1998
Mar	78.2 mm (3.1 in)	2 March 1994
Apr	109.7 mm (4.3 in)	20 April 1991
May	78.5 mm (3.1 in)	6 May 1958
Jun	129.5 mm (5.1 in)	14 June 2006
Jul	123.7 mm (4.9 in)	24 July 2014
Aug	278.9 mm (11.0 in)	27 August 2011
Sep	233.4 mm (9.2 in)	15 September 1999
Oct	221.0 mm (8.7 in)	8 October 2016
Nov	196.3 mm (7.7 in)	12 November 2009
Dec	94.7 mm (3.7 in)	17 December 2023

Period of Record Coverage

1945 to 2026

82 years of record at Suffolk Lake Kilby, 1945 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1945, 1948, 2026.

Days with data per year at Suffolk Lake Kilby
Year	Days with data	Share of year	Complete
1945	245	67%	No
1946	363	99%	Yes
1947	350	96%	Yes
1948	152	42%	No
1949	364	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	365	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	364	100%	Yes
1956	365	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	361	99%	Yes
1963	365	100%	Yes
1964	365	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	364	100%	Yes
1972	365	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	365	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	364	100%	Yes
1980	366	100%	Yes
1981	364	100%	Yes
1982	361	99%	Yes
1983	364	100%	Yes
1984	366	100%	Yes
1985	362	99%	Yes
1986	365	100%	Yes
1987	364	100%	Yes
1988	364	99%	Yes
1989	360	99%	Yes
1990	358	98%	Yes
1991	363	99%	Yes
1992	360	98%	Yes
1993	363	99%	Yes
1994	363	99%	Yes
1995	332	91%	Yes
1996	364	99%	Yes
1997	360	99%	Yes
1998	363	99%	Yes
1999	363	99%	Yes
2000	364	99%	Yes
2001	365	100%	Yes
2002	361	99%	Yes
2003	364	100%	Yes
2004	347	95%	Yes
2005	365	100%	Yes
2006	364	100%	Yes
2007	363	99%	Yes
2008	365	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	365	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	365	100%	Yes
2018	365	100%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	364	100%	Yes
2026	273	75%	No

Latest Records

Latest records at Suffolk Lake Kilby
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 September 2026	Suffolk Lake Kilby, US	daily rain (Provisional)	55.4 mm (2.2 in)	6.6 mm (0.26 in)	3 years	10 of 100 (Routine)
21 September 2026	Suffolk Lake Kilby, US	daily high min (Provisional)	22.2 C (72.0 F)	0.5 C (0.9 F)	11 years	12 of 100 (Routine)
12 September 2026	Suffolk Lake Kilby, US	daily high min (Provisional)	23.3 C (73.9 F)	1.1 C (2.0 F)	60 years	28 of 100 (Routine)
2 September 2026	Suffolk Lake Kilby, US	daily high min (Provisional)	23.9 C (75.0 F)	0.6 C (1.1 F)	76 years	31 of 100 (Routine)
17 August 2026	Suffolk Lake Kilby, US	daily high min (Tie, Provisional)	24.4 C (75.9 F)	tie	48 years	5 of 100 (Routine)
6 August 2026	Suffolk Lake Kilby, US	daily high min	23.9 C (75.0 F)	0.6 C (1.1 F)	48 years	24 of 100 (Routine)
23 July 2026	Suffolk Lake Kilby, US	daily low max	24.4 C (75.9 F)	0.6 C (1.1 F)	21 years	16 of 100 (Routine)
18 July 2026	Suffolk Lake Kilby, US	daily high min (Tie)	24.4 C (75.9 F)	tie	35 years	4 of 100 (Routine)
4 July 2026	Suffolk Lake Kilby, US	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	27 years	20 of 100 (Routine)
3 July 2026	Suffolk Lake Kilby, US	daily high min	23.9 C (75.0 F)	0.6 C (1.1 F)	53 years	26 of 100 (Routine)
23 June 2026	Suffolk Lake Kilby, US	daily rain	38.4 mm (1.5 in)	11.0 mm (0.4 in)	52 years	30 of 100 (Routine)
13 June 2026	Suffolk Lake Kilby, US	daily high min (Tie)	22.8 C (73.0 F)	tie	52 years	5 of 100 (Routine)
25 May 2026	Suffolk Lake Kilby, US	daily high min (Tie)	21.7 C (71.1 F)	tie	79 years	7 of 100 (Routine)
19 May 2026	Suffolk Lake Kilby, US	daily high min	21.1 C (70.0 F)	0.5 C (0.9 F)	60 years	27 of 100 (Routine)
15 April 2026	Suffolk Lake Kilby, US	daily high max	31.1 C (88.0 F)	0.5 C (0.9 F)	1 year	8 of 100 (Routine)
3 April 2026	Suffolk Lake Kilby, US	daily high min (Tie)	16.7 C (62.1 F)	tie	63 years	6 of 100 (Routine)
2 April 2026	Suffolk Lake Kilby, US	daily high min	17.2 C (63.0 F)	1.6 C (2.9 F)	28 years	19 of 100 (Routine)
22 March 2026	Suffolk Lake Kilby, US	daily high max (Tie)	27.8 C (82.0 F)	tie	57 years	6 of 100 (Routine)
11 March 2026	Suffolk Lake Kilby, US	daily high max	30.6 C (87.1 F)	2.8 C (5.0 F)	36 years	22 of 100 (Routine)
11 March 2026	Suffolk Lake Kilby, US	daily high min	15.6 C (60.1 F)	2.3 C (4.1 F)	9 years	14 of 100 (Routine)

Climate Trend

77 complete years, 1946 to 2025

One stripe for each of 77 complete years at Suffolk Lake Kilby, 1946 to 2025. Blue stripes are years cooler than the station's own mean of 15.3 C (59.5 F); red stripes are warmer. The coolest year was 1958, at 13.7 C (56.7 F), and the warmest was 1998, at 16.7 C (62.0 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Suffolk Lake Kilby as warming stripes, 1946 to 2025
Year	Annual mean temperature	Difference from the station mean
1946	15.5 C	+0.21 C
1949	15.8 C	+0.52 C
1950	14.6 C	-0.70 C
1951	14.9 C	-0.37 C
1952	15.2 C	-0.03 C
1953	15.7 C	+0.42 C
1954	15.1 C	-0.19 C
1955	14.7 C	-0.57 C
1956	15.0 C	-0.27 C
1957	15.1 C	-0.14 C
1958	13.7 C	-1.53 C
1959	15.4 C	+0.17 C
1960	14.7 C	-0.57 C
1961	15.0 C	-0.25 C
1962	14.4 C	-0.84 C
1963	14.1 C	-1.18 C
1964	15.0 C	-0.23 C
1965	14.8 C	-0.47 C
1966	14.3 C	-0.99 C
1967	14.3 C	-0.92 C
1968	14.7 C	-0.61 C
1969	14.4 C	-0.91 C
1970	14.9 C	-0.33 C
1971	15.2 C	-0.06 C
1972	14.9 C	-0.41 C
1973	15.8 C	+0.51 C
1974	15.7 C	+0.42 C
1975	16.0 C	+0.78 C
1976	14.9 C	-0.32 C
1977	15.3 C	-0.01 C
1978	14.4 C	-0.85 C
1979	14.6 C	-0.71 C
1980	13.8 C	-1.44 C
1981	14.3 C	-1.00 C
1982	14.4 C	-0.84 C
1983	14.8 C	-0.42 C
1984	15.1 C	-0.15 C
1985	15.2 C	-0.11 C
1986	15.4 C	+0.12 C
1987	15.0 C	-0.29 C
1988	14.5 C	-0.78 C
1989	14.3 C	-0.94 C
1990	16.3 C	+1.04 C
1991	16.4 C	+1.10 C
1992	15.1 C	-0.19 C
1993	15.4 C	+0.09 C
1994	14.9 C	-0.34 C
1996	14.8 C	-0.45 C
1997	15.2 C	-0.09 C
1998	16.7 C	+1.42 C
1999	16.0 C	+0.72 C
2000	15.2 C	-0.05 C
2001	15.9 C	+0.66 C
2002	16.4 C	+1.17 C
2003	15.5 C	+0.19 C
2004	16.6 C	+1.29 C
2005	15.4 C	+0.13 C
2006	15.8 C	+0.55 C
2007	16.1 C	+0.87 C
2008	15.8 C	+0.57 C
2009	15.2 C	-0.02 C
2010	15.2 C	-0.03 C
2011	16.0 C	+0.74 C
2012	16.1 C	+0.84 C
2013	14.8 C	-0.42 C
2014	14.7 C	-0.58 C
2015	15.7 C	+0.39 C
2016	15.8 C	+0.50 C
2017	16.0 C	+0.69 C
2018	15.6 C	+0.29 C
2019	16.1 C	+0.85 C
2020	16.1 C	+0.84 C
2021	15.7 C	+0.48 C
2022	15.7 C	+0.40 C
2023	16.5 C	+1.19 C
2024	16.3 C	+1.01 C
2025	15.7 C	+0.41 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1946 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 77 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Suffolk Lake Kilby
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.2) per decade	0.3 F (0.2 to 0.4) per decade	1946 to 2025	77	Rise
Mean daily maximum	0.02 C (-0.05 to 0.10) per decade	0.04 F (-0.10 to 0.17) per decade	1946 to 2025	77	Not clearly different from zero
Mean daily minimum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.4 to 0.6) per decade	1946 to 2025	77	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

1945 to 2026

Yearly extremes at Suffolk Lake Kilby: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1952	36.1 C (97.0 F)	82
Coldest night (TNn)	-20.6 C (-5.1 F)	1985	-10.6 C (12.9 F)	82
Wettest day (Rx1day)	278.9 mm (11.0 in)	2011	78.0 mm (3.1 in)	82
Wettest five days (Rx5day)	305.6 mm (12.0 in)	2011	122.2 mm (4.8 in)	82
Longest dry spell (CDD)	40 days	2001	18 days	82

Hottest day (TXx)

The hottest day of the year at Suffolk Lake Kilby, 1945 to 2026. The record is 40.6 C (105.1 F) in 1952, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Suffolk Lake Kilby by year
Year	Hottest day (TXx)
1945	37.8 C (100.0 F)
1946	36.7 C (98.1 F)
1947	37.2 C (99.0 F)
1948	38.3 C (100.9 F)
1949	36.1 C (97.0 F)
1950	36.7 C (98.1 F)
1951	36.7 C (98.1 F)
1952	40.6 C (105.1 F)
1953	37.2 C (99.0 F)
1954	37.8 C (100.0 F)
1955	37.2 C (99.0 F)
1956	37.2 C (99.0 F)
1957	36.7 C (98.1 F)
1958	35.6 C (96.1 F)
1959	37.8 C (100.0 F)
1960	35.0 C (95.0 F)
1961	35.6 C (96.1 F)
1962	35.0 C (95.0 F)
1963	35.6 C (96.1 F)
1964	37.2 C (99.0 F)
1965	34.4 C (93.9 F)
1966	36.1 C (97.0 F)
1967	33.9 C (93.0 F)
1968	37.2 C (99.0 F)
1969	35.0 C (95.0 F)
1970	36.1 C (97.0 F)
1971	34.4 C (93.9 F)
1972	35.6 C (96.1 F)
1973	34.4 C (93.9 F)
1974	35.0 C (95.0 F)
1975	35.6 C (96.1 F)
1976	35.0 C (95.0 F)
1977	37.2 C (99.0 F)
1978	35.6 C (96.1 F)
1979	35.6 C (96.1 F)
1980	36.7 C (98.1 F)
1981	36.7 C (98.1 F)
1982	32.8 C (91.0 F)
1983	37.8 C (100.0 F)
1984	35.0 C (95.0 F)
1985	35.0 C (95.0 F)
1986	37.8 C (100.0 F)
1987	36.7 C (98.1 F)
1988	37.2 C (99.0 F)
1989	36.7 C (98.1 F)
1990	36.7 C (98.1 F)
1991	36.7 C (98.1 F)
1992	37.8 C (100.0 F)
1993	36.7 C (98.1 F)
1994	32.8 C (91.0 F)
1995	35.0 C (95.0 F)
1996	35.0 C (95.0 F)
1997	36.1 C (97.0 F)
1998	35.6 C (96.1 F)
1999	37.2 C (99.0 F)
2000	33.3 C (91.9 F)
2001	35.6 C (96.1 F)
2002	38.3 C (100.9 F)
2003	35.0 C (95.0 F)
2004	40.6 C (105.1 F)
2005	37.2 C (99.0 F)
2006	36.1 C (97.0 F)
2007	37.8 C (100.0 F)
2008	36.7 C (98.1 F)
2009	33.3 C (91.9 F)
2010	38.3 C (100.9 F)
2011	37.2 C (99.0 F)
2012	36.1 C (97.0 F)
2013	35.0 C (95.0 F)
2014	34.4 C (93.9 F)
2015	35.6 C (96.1 F)
2016	37.2 C (99.0 F)
2017	33.9 C (93.0 F)
2018	34.4 C (93.9 F)
2019	33.9 C (93.0 F)
2020	35.6 C (96.1 F)
2021	32.8 C (91.0 F)
2022	37.2 C (99.0 F)
2023	35.6 C (96.1 F)
2024	36.1 C (97.0 F)
2025	37.2 C (99.0 F)
2026	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Suffolk Lake Kilby, 1945 to 2026. The record is -20.6 C (-5.1 F) in 1985, marked on the chart; the median year is -10.6 C (12.9 F).

Coldest night (TNn) at Suffolk Lake Kilby by year
Year	Coldest night (TNn)
1945	-10.0 C (14.0 F)
1946	-11.1 C (12.0 F)
1947	-13.3 C (8.1 F)
1948	-12.2 C (10.0 F)
1949	-7.2 C (19.0 F)
1950	-10.0 C (14.0 F)
1951	-12.8 C (9.0 F)
1952	-10.6 C (12.9 F)
1953	-11.1 C (12.0 F)
1954	-12.2 C (10.0 F)
1955	-12.2 C (10.0 F)
1956	-9.4 C (15.1 F)
1957	-13.3 C (8.1 F)
1958	-15.0 C (5.0 F)
1959	-12.2 C (10.0 F)
1960	-10.0 C (14.0 F)
1961	-11.7 C (10.9 F)
1962	-12.8 C (9.0 F)
1963	-11.7 C (10.9 F)
1964	-10.0 C (14.0 F)
1965	-12.8 C (9.0 F)
1966	-11.7 C (10.9 F)
1967	-10.0 C (14.0 F)
1968	-10.6 C (12.9 F)
1969	-9.4 C (15.1 F)
1970	-13.9 C (7.0 F)
1971	-11.7 C (10.9 F)
1972	-15.0 C (5.0 F)
1973	-12.2 C (10.0 F)
1974	-6.7 C (19.9 F)
1975	-8.3 C (17.1 F)
1976	-11.1 C (12.0 F)
1977	-15.6 C (3.9 F)
1978	-11.1 C (12.0 F)
1979	-13.9 C (7.0 F)
1980	-14.4 C (6.1 F)
1981	-16.7 C (1.9 F)
1982	-13.9 C (7.0 F)
1983	-15.6 C (3.9 F)
1984	-12.2 C (10.0 F)
1985	-20.6 C (-5.1 F)
1986	-10.6 C (12.9 F)
1987	-12.2 C (10.0 F)
1988	-10.6 C (12.9 F)
1989	-15.0 C (5.0 F)
1990	-8.3 C (17.1 F)
1991	-8.9 C (16.0 F)
1992	-6.7 C (19.9 F)
1993	-8.9 C (16.0 F)
1994	-16.1 C (3.0 F)
1995	-10.6 C (12.9 F)
1996	-15.6 C (3.9 F)
1997	-12.8 C (9.0 F)
1998	-5.6 C (21.9 F)
1999	-8.9 C (16.0 F)
2000	-13.3 C (8.1 F)
2001	-8.3 C (17.1 F)
2002	-5.6 C (21.9 F)
2003	-10.6 C (12.9 F)
2004	-10.6 C (12.9 F)
2005	-10.0 C (14.0 F)
2006	-7.8 C (18.0 F)
2007	-10.6 C (12.9 F)
2008	-7.8 C (18.0 F)
2009	-10.6 C (12.9 F)
2010	-8.9 C (16.0 F)
2011	-8.9 C (16.0 F)
2012	-7.8 C (18.0 F)
2013	-8.3 C (17.1 F)
2014	-13.9 C (7.0 F)
2015	-15.0 C (5.0 F)
2016	-9.4 C (15.1 F)
2017	-12.8 C (9.0 F)
2018	-16.7 C (1.9 F)
2019	-8.3 C (17.1 F)
2020	-5.6 C (21.9 F)
2021	-5.6 C (21.9 F)
2022	-11.1 C (12.0 F)
2023	-6.1 C (21.0 F)
2024	-7.8 C (18.0 F)
2025	-10.0 C (14.0 F)
2026	-9.4 C (15.1 F)

Wettest day (Rx1day)

The wettest day of the year at Suffolk Lake Kilby, 1945 to 2026. The record is 278.9 mm (11.0 in) in 2011, marked on the chart; the median year is 78.0 mm (3.1 in).

Wettest day (Rx1day) at Suffolk Lake Kilby by year
Year	Wettest day (Rx1day)
1945	69.9 mm (2.8 in)
1946	46.0 mm (1.8 in)
1947	55.4 mm (2.2 in)
1948	110.0 mm (4.3 in)
1949	71.4 mm (2.8 in)
1950	66.8 mm (2.6 in)
1951	41.1 mm (1.6 in)
1952	57.7 mm (2.3 in)
1953	73.2 mm (2.9 in)
1954	55.9 mm (2.2 in)
1955	102.6 mm (4.0 in)
1956	75.7 mm (3.0 in)
1957	67.6 mm (2.7 in)
1958	78.5 mm (3.1 in)
1959	93.2 mm (3.7 in)
1960	123.4 mm (4.9 in)
1961	60.7 mm (2.4 in)
1962	54.4 mm (2.1 in)
1963	158.0 mm (6.2 in)
1964	95.5 mm (3.8 in)
1965	80.8 mm (3.2 in)
1966	65.0 mm (2.6 in)
1967	78.0 mm (3.1 in)
1968	66.0 mm (2.6 in)
1969	60.5 mm (2.4 in)
1970	47.5 mm (1.9 in)
1971	91.4 mm (3.6 in)
1972	73.9 mm (2.9 in)
1973	63.2 mm (2.5 in)
1974	78.5 mm (3.1 in)
1975	55.4 mm (2.2 in)
1976	53.3 mm (2.1 in)
1977	52.1 mm (2.1 in)
1978	95.8 mm (3.8 in)
1979	125.2 mm (4.9 in)
1980	65.5 mm (2.6 in)
1981	78.0 mm (3.1 in)
1982	158.8 mm (6.3 in)
1983	95.0 mm (3.7 in)
1984	68.6 mm (2.7 in)
1985	91.4 mm (3.6 in)
1986	46.0 mm (1.8 in)
1987	93.2 mm (3.7 in)
1988	41.9 mm (1.6 in)
1989	69.3 mm (2.7 in)
1990	82.6 mm (3.3 in)
1991	109.7 mm (4.3 in)
1992	101.1 mm (4.0 in)
1993	50.5 mm (2.0 in)
1994	91.7 mm (3.6 in)
1995	55.1 mm (2.2 in)
1996	89.2 mm (3.5 in)
1997	89.2 mm (3.5 in)
1998	106.2 mm (4.2 in)
1999	233.4 mm (9.2 in)
2000	48.3 mm (1.9 in)
2001	50.5 mm (2.0 in)
2002	62.0 mm (2.4 in)
2003	134.9 mm (5.3 in)
2004	108.2 mm (4.3 in)
2005	168.9 mm (6.6 in)
2006	153.2 mm (6.0 in)
2007	45.7 mm (1.8 in)
2008	86.1 mm (3.4 in)
2009	196.3 mm (7.7 in)
2010	88.9 mm (3.5 in)
2011	278.9 mm (11.0 in)
2012	94.2 mm (3.7 in)
2013	63.2 mm (2.5 in)
2014	123.7 mm (4.9 in)
2015	87.4 mm (3.4 in)
2016	221.0 mm (8.7 in)
2017	71.4 mm (2.8 in)
2018	60.5 mm (2.4 in)
2019	67.1 mm (2.6 in)
2020	129.3 mm (5.1 in)
2021	94.7 mm (3.7 in)
2022	107.7 mm (4.2 in)
2023	94.7 mm (3.7 in)
2024	63.2 mm (2.5 in)
2025	59.4 mm (2.3 in)
2026	55.4 mm (2.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Suffolk Lake Kilby, 1945 to 2026. The record is 305.6 mm (12.0 in) in 2011, marked on the chart; the median year is 122.2 mm (4.8 in).

Wettest five days (Rx5day) at Suffolk Lake Kilby by year
Year	Wettest five days (Rx5day)
1945	125.0 mm (4.9 in)
1946	65.5 mm (2.6 in)
1947	63.0 mm (2.5 in)
1948	127.2 mm (5.0 in)
1949	174.8 mm (6.9 in)
1950	100.7 mm (4.0 in)
1951	87.7 mm (3.5 in)
1952	77.8 mm (3.1 in)
1953	179.2 mm (7.1 in)
1954	85.9 mm (3.4 in)
1955	147.9 mm (5.8 in)
1956	101.5 mm (4.0 in)
1957	108.8 mm (4.3 in)
1958	144.4 mm (5.7 in)
1959	146.8 mm (5.8 in)
1960	196.9 mm (7.8 in)
1961	84.1 mm (3.3 in)
1962	103.1 mm (4.1 in)
1963	177.3 mm (7.0 in)
1964	171.1 mm (6.7 in)
1965	122.4 mm (4.8 in)
1966	103.8 mm (4.1 in)
1967	123.8 mm (4.9 in)
1968	87.1 mm (3.4 in)
1969	92.0 mm (3.6 in)
1970	77.5 mm (3.1 in)
1971	133.5 mm (5.3 in)
1972	115.0 mm (4.5 in)
1973	98.8 mm (3.9 in)
1974	119.6 mm (4.7 in)
1975	134.3 mm (5.3 in)
1976	69.0 mm (2.7 in)
1977	84.4 mm (3.3 in)
1978	167.0 mm (6.6 in)
1979	170.7 mm (6.7 in)
1980	70.9 mm (2.8 in)
1981	142.5 mm (5.6 in)
1982	163.7 mm (6.4 in)
1983	122.4 mm (4.8 in)
1984	85.6 mm (3.4 in)
1985	170.4 mm (6.7 in)
1986	72.5 mm (2.9 in)
1987	164.1 mm (6.5 in)
1988	78.5 mm (3.1 in)
1989	94.3 mm (3.7 in)
1990	84.6 mm (3.3 in)
1991	113.0 mm (4.4 in)
1992	295.2 mm (11.6 in)
1993	72.8 mm (2.9 in)
1994	122.7 mm (4.8 in)
1995	77.1 mm (3.0 in)
1996	133.4 mm (5.3 in)
1997	127.6 mm (5.0 in)
1998	118.7 mm (4.7 in)
1999	277.9 mm (10.9 in)
2000	101.7 mm (4.0 in)
2001	74.4 mm (2.9 in)
2002	94.4 mm (3.7 in)
2003	136.7 mm (5.4 in)
2004	186.4 mm (7.3 in)
2005	188.0 mm (7.4 in)
2006	225.3 mm (8.9 in)
2007	97.4 mm (3.8 in)
2008	113.8 mm (4.5 in)
2009	297.4 mm (11.7 in)
2010	300.2 mm (11.8 in)
2011	305.6 mm (12.0 in)
2012	167.1 mm (6.6 in)
2013	118.6 mm (4.7 in)
2014	124.5 mm (4.9 in)
2015	154.4 mm (6.1 in)
2016	279.0 mm (11.0 in)
2017	81.7 mm (3.2 in)
2018	88.1 mm (3.5 in)
2019	123.4 mm (4.9 in)
2020	174.6 mm (6.9 in)
2021	146.7 mm (5.8 in)
2022	121.9 mm (4.8 in)
2023	104.9 mm (4.1 in)
2024	118.9 mm (4.7 in)
2025	123.7 mm (4.9 in)
2026	100.2 mm (3.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Suffolk Lake Kilby, 1945 to 2026. The record is 40 days in 2001, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Suffolk Lake Kilby by year
Year	Longest dry spell (CDD)
1945	13 days
1946	15 days
1947	16 days
1948	16 days
1949	19 days
1950	17 days
1951	15 days
1952	18 days
1953	21 days
1954	24 days
1955	11 days
1956	16 days
1957	18 days
1958	23 days
1959	21 days
1960	16 days
1961	27 days
1962	29 days
1963	15 days
1964	29 days
1965	35 days
1966	17 days
1967	18 days
1968	26 days
1969	18 days
1970	25 days
1971	16 days
1972	18 days
1973	26 days
1974	23 days
1975	15 days
1976	22 days
1977	19 days
1978	22 days
1979	11 days
1980	31 days
1981	15 days
1982	22 days
1983	12 days
1984	20 days
1985	17 days
1986	21 days
1987	19 days
1988	14 days
1989	21 days
1990	18 days
1991	29 days
1992	16 days
1993	25 days
1994	21 days
1995	19 days
1996	10 days
1997	16 days
1998	24 days
1999	18 days
2000	38 days
2001	40 days
2002	19 days
2003	14 days
2004	17 days
2005	18 days
2006	17 days
2007	17 days
2008	19 days
2009	20 days
2010	14 days
2011	14 days
2012	19 days
2013	14 days
2014	16 days
2015	11 days
2016	17 days
2017	22 days
2018	12 days
2019	24 days
2020	18 days
2021	15 days
2022	15 days
2023	20 days
2024	28 days
2025	19 days
2026	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

77 years with a frost

Across 77 years with a frost, the median last spring frost at Suffolk Lake Kilby falls on 1 April and the median first autumn frost on 9 November, which leaves a median of 223 days between them.

In 1996 to 2025 the median growing season was 235 days. That is 26 days more than in 1946 to 1977.

Fitted over all years, the growing season changes by +6.0 days per decade at this station.

Frost dates and growing season at Suffolk Lake Kilby
Measure	Median, all years	Earliest period (1946 to 1977)	Recent period (1996 to 2025)	Recent against earliest	Fitted trend
Last spring frost	1 April	7 April	27 March	11 days earlier	-2.8 days per decade
First autumn frost	9 November	6 November	18 November	12 days later	+3.2 days per decade
Growing days	223 days	209 days	235 days	26 days more	+6.0 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

79 years, 1946 to 2025

A day with at least 76.8 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 272.3 mm (10.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Suffolk Lake Kilby: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	76.8 mm (3.0 in)
5 years	110.3 mm (4.3 in)
10 years	138.5 mm (5.5 in)
25 years	183.0 mm (7.2 in)
50 years	223.8 mm (8.8 in)
100 years	272.3 mm (10.7 in)	Longer than the 79 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, 79 years of values from 1946 to 2025.

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: 278.9 mm (11.0 in) in 2011; 233.4 mm (9.2 in) in 1999; 221.0 mm (8.7 in) in 2016.

Station Changes

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

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Suffolk Lake Kilby had a mean temperature of 15.8 C (60.4 F) and 1,353.4 mm (53.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Clemson UNIV (United States, 607 km away), Cedartown (United States, 837 km away) and W Pelzer (United States, 577 km away).

Climate twins of Suffolk Lake Kilby: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Clemson UNIV	United States	607 km (377 mi)	15.6 C (60.0 F)	1,382.8 mm (54.4 in)	0.58
Cedartown	United States	837 km (520 mi)	15.9 C (60.5 F)	1,379.8 mm (54.3 in)	0.59
W Pelzer	United States	577 km (359 mi)	15.9 C (60.7 F)	1,299.2 mm (51.1 in)	0.61

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Suffolk Lake Kilby standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Suffolk Lake Kilby 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).