Lerwick Weather Records (UK000003005)

Record envelope, standing records and threshold days for Lerwick (UK000003005), United Kingdom, with 98 years of record.

Key Facts for Lerwick

Lerwick (UK000003005) is a weather station in United Kingdom at 60.13 latitude and -1.18 longitude, 82 m (269 ft) above sea level.
The station reports from 1929 to 2026, 98 years of record.
1,464 records set at Lerwick still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Lerwick set a daily record precipitation of 13.2 mm (0.5 in) on 24 July 2026.

About the Station

Location: United Kingdom, 60.13 latitude, -1.18 longitude.
Elevation: 82 m (269 ft).
Period of record: 1929 to 2026, 98 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

4 days at or beyond a record

The band shows the record high and record low for each calendar day at Lerwick. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Lerwick, 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)	-8.9 C (16.0 F)	8.7 C (47.7 F)	-5.8 C (21.6 F)
Feb	11.7 C (53.1 F)	-7.4 C (18.7 F)	8.9 C (48.0 F)	-1.9 C (28.6 F)
Mar	13.3 C (55.9 F)	-8.3 C (17.1 F)	11.8 C (53.2 F)	-2.5 C (27.5 F)
Apr	16.1 C (61.0 F)	-5.7 C (21.7 F)	14.3 C (57.7 F)	0.3 C (32.5 F)
May	20.7 C (69.3 F)	-2.2 C (28.0 F)	15.0 C (59.0 F)	-0.1 C (31.8 F)
Jun	23.3 C (73.9 F)	-0.6 C (30.9 F)	18.7 C (65.7 F)	5.5 C (41.9 F)
Jul	23.4 C (74.1 F)	3.5 C (38.3 F)	17.1 C (62.8 F)	7.0 C (44.6 F)
Aug	22.1 C (71.8 F)	2.8 C (37.0 F)	19.8 C (67.6 F)	8.4 C (47.1 F)
Sep	20.7 C (69.3 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	17.2 C (63.0 F)	-3.3 C (26.1 F)	n/a	n/a
Nov	14.0 C (57.2 F)	-5.7 C (21.7 F)	n/a	n/a
Dec	12.8 C (55.0 F)	-8.2 C (17.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Lerwick still stand. 2025 holds the most, with 52.

Standing records at Lerwick by the year they were set
Year set	Standing records
1929	5
1930	13
1931	23
1932	10
1933	12
1934	21
1935	17
1936	18
1937	11
1938	21
1939	15
1940	10
1941	11
1942	8
1943	11
1944	6
1945	13
1946	18
1947	27
1948	32
1949	14
1950	16
1951	14
1952	25
1953	18
1954	8
1955	32
1956	10
1957	8
1958	21
1959	11
1960	6
1961	20
1962	24
1963	18
1964	24
1965	25
1966	11
1967	7
1968	29
1969	25
1970	11
1971	21
1972	3
1973	18
1974	4
1975	16
1976	4
1977	10
1978	23
1979	14
1980	13
1981	20
1982	12
1983	9
1984	6
1985	19
1986	6
1987	4
1988	7
1989	24
1990	17
1991	8
1992	21
1993	11
1994	14
1995	17
1996	3
1997	17
1998	22
1999	10
2000	8
2001	11
2002	15
2003	19
2004	14
2005	8
2006	25
2007	12
2008	17
2009	19
2010	13
2011	19
2012	18
2013	7
2014	2
2015	15
2016	13
2017	10
2018	13
2019	18
2020	8
2021	9
2022	16
2023	19
2024	26
2025	52
2026	6

All-Time Record Progression

5 new records

5 all-time records were set at Lerwick between 5 July 1991 and 21 July 2025. Each dot is a new record.

When Lerwick set new all-time records
Date	Kind	Detail
1991-07-05	Record high maximum temperature	Record high maximum temperature 23.4 C (74.1 F)
2002-08-18	Record high minimum temperature	Record high minimum temperature 14.6 C (58.3 F)
2003-07-17	Record high minimum temperature	Record high minimum temperature 15.7 C (60.3 F)
2004-08-10	Record high minimum temperature	Record high minimum temperature 16.0 C (60.8 F)
2025-07-21	Record high minimum temperature	Record high minimum temperature 16.2 C (61.2 F)

Wettest Day of Each Month

Jul: 106.9 mm (4.2 in)

The wettest day on record for each calendar month at Lerwick. The most was 106.9 mm (4.2 in) on 8 July 1937.

Record daily precipitation for each month at Lerwick
Month	Record daily precipitation (mm)	Date
Jan	87.1 mm (3.4 in)	10 January 1938
Feb	96.0 mm (3.8 in)	7 February 1931
Mar	94.0 mm (3.7 in)	4 March 1938
Apr	78.0 mm (3.1 in)	2 April 1935
May	82.0 mm (3.2 in)	18 May 1938
Jun	90.4 mm (3.6 in)	16 June 1938
Jul	106.9 mm (4.2 in)	8 July 1937
Aug	86.6 mm (3.4 in)	9 August 2014
Sep	57.4 mm (2.3 in)	2 September 1931
Oct	89.4 mm (3.5 in)	21 October 1937
Nov	90.4 mm (3.6 in)	27 November 1933
Dec	90.9 mm (3.6 in)	5 December 1934

Period of Record Coverage

1929 to 2026

98 years of record at Lerwick, 1929 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1929, 1930, 2026.

Days with data per year at Lerwick
Year	Days with data	Share of year	Complete
1929	58	16%	No
1930	258	71%	No
1931	363	99%	Yes
1932	363	99%	Yes
1933	362	99%	Yes
1934	354	97%	Yes
1935	357	98%	Yes
1936	362	99%	Yes
1937	358	98%	Yes
1938	359	98%	Yes
1939	361	99%	Yes
1940	362	99%	Yes
1941	362	99%	Yes
1942	359	98%	Yes
1943	362	99%	Yes
1944	363	99%	Yes
1945	360	99%	Yes
1946	363	99%	Yes
1947	363	99%	Yes
1948	362	99%	Yes
1949	364	100%	Yes
1950	361	99%	Yes
1951	362	99%	Yes
1952	362	99%	Yes
1953	362	99%	Yes
1954	361	99%	Yes
1955	357	98%	Yes
1956	361	99%	Yes
1957	361	99%	Yes
1958	359	98%	Yes
1959	362	99%	Yes
1960	361	99%	Yes
1961	361	99%	Yes
1962	361	99%	Yes
1963	364	100%	Yes
1964	358	98%	Yes
1965	364	100%	Yes
1966	359	98%	Yes
1967	361	99%	Yes
1968	361	99%	Yes
1969	360	99%	Yes
1970	358	98%	Yes
1971	358	98%	Yes
1972	364	99%	Yes
1973	363	99%	Yes
1974	365	100%	Yes
1975	361	99%	Yes
1976	363	99%	Yes
1977	363	99%	Yes
1978	363	99%	Yes
1979	363	99%	Yes
1980	360	98%	Yes
1981	361	99%	Yes
1982	363	99%	Yes
1983	353	97%	Yes
1984	364	99%	Yes
1985	363	99%	Yes
1986	363	99%	Yes
1987	360	99%	Yes
1988	362	99%	Yes
1989	361	99%	Yes
1990	360	99%	Yes
1991	363	99%	Yes
1992	363	99%	Yes
1993	361	99%	Yes
1994	362	99%	Yes
1995	361	99%	Yes
1996	363	99%	Yes
1997	360	99%	Yes
1998	356	98%	Yes
1999	363	99%	Yes
2000	363	99%	Yes
2001	360	99%	Yes
2002	356	98%	Yes
2003	358	98%	Yes
2004	357	98%	Yes
2005	358	98%	Yes
2006	360	99%	Yes
2007	360	99%	Yes
2008	362	99%	Yes
2009	358	98%	Yes
2010	352	96%	Yes
2011	355	97%	Yes
2012	355	97%	Yes
2013	360	99%	Yes
2014	363	99%	Yes
2015	361	99%	Yes
2016	357	98%	Yes
2017	351	96%	Yes
2018	356	98%	Yes
2019	354	97%	Yes
2020	355	97%	Yes
2021	356	98%	Yes
2022	355	97%	Yes
2023	356	98%	Yes
2024	353	96%	Yes
2025	357	98%	Yes
2026	238	65%	No

Latest Records

Latest records at Lerwick
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 July 2026	Lerwick, GB	daily rain	13.2 mm (0.5 in)	1.0 mm (0.04 in)	15 years	14 of 100 (Routine)
10 July 2026	Lerwick, GB	daily high min	13.0 C (55.4 F)	0.2 C (0.4 F)	92 years	37 of 100 (Notable)
30 April 2026	Lerwick, GB	daily high max	14.3 C (57.7 F)	1.0 C (1.8 F)	88 years	40 of 100 (Notable)
16 April 2026	Lerwick, GB	daily high min	6.9 C (44.4 F)	0.1 C (0.2 F)	4 years	10 of 100 (Routine)
7 April 2026	Lerwick, GB	daily high max (Tie)	10.7 C (51.3 F)	tie	1 year	2 of 100 (Routine)
4 April 2026	Lerwick, GB	daily rain	28.6 mm (1.1 in)	8.6 mm (0.34 in)	36 years	36 of 100 (Notable)
18 March 2026	Lerwick, GB	daily high min	7.1 C (44.8 F)	0.4 C (0.7 F)	88 years	36 of 100 (Notable)
16 March 2026	Lerwick, GB	daily high max (Tie)	10.1 C (50.2 F)	tie	36 years	4 of 100 (Routine)
1 March 2026	Lerwick, GB	daily high max	9.2 C (48.6 F)	0.3 C (0.5 F)	88 years	36 of 100 (Notable)
11 January 2026	Lerwick, GB	daily rain	29.2 mm (1.1 in)	3.2 mm (0.13 in)	28 years	22 of 100 (Routine)
2 January 2026	Lerwick, GB	daily low max	0.1 C (32.2 F)	0.4 C (0.7 F)	0 years	10 of 100 (Routine)
22 December 2025	Lerwick, GB	daily high min	7.4 C (45.3 F)	0.2 C (0.4 F)	91 years	36 of 100 (Notable)
12 December 2025	Lerwick, GB	daily high max	10.9 C (51.6 F)	1.1 C (2.0 F)	12 years	16 of 100 (Routine)
10 December 2025	Lerwick, GB	daily high min	8.2 C (46.8 F)	0.4 C (0.7 F)	91 years	37 of 100 (Notable)
26 November 2025	Lerwick, GB	daily high max	11.8 C (53.2 F)	0.1 C (0.2 F)	76 years	32 of 100 (Routine)
10 November 2025	Lerwick, GB	daily high min	9.9 C (49.8 F)	0.4 C (0.7 F)	4 years	11 of 100 (Routine)
9 November 2025	Lerwick, GB	daily high min	10.3 C (50.5 F)	1.3 C (2.3 F)	0 years	13 of 100 (Routine)
8 November 2025	Lerwick, GB	daily high min (Tie)	9.8 C (49.6 F)	tie	0 years	2 of 100 (Routine)
7 November 2025	Lerwick, GB	daily high max	11.6 C (52.9 F)	0.1 C (0.2 F)	47 years	23 of 100 (Routine)
7 November 2025	Lerwick, GB	daily high min	10.4 C (50.7 F)	0.9 C (1.6 F)	0 years	12 of 100 (Routine)

Climate Trend

95 complete years, 1931 to 2025

One stripe for each of 95 complete years at Lerwick, 1931 to 2025. Blue stripes are years cooler than the station's own mean of 7.3 C (45.2 F); red stripes are warmer. The coolest year was 1979, at 6.1 C (42.9 F), and the warmest was 2025, at 9.0 C (48.2 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Lerwick as warming stripes, 1931 to 2025
Year	Annual mean temperature	Difference from the station mean
1931	6.6 C	-0.72 C
1932	7.1 C	-0.19 C
1933	7.9 C	+0.53 C
1934	7.8 C	+0.51 C
1935	7.2 C	-0.13 C
1936	7.3 C	-0.02 C
1937	7.0 C	-0.36 C
1938	7.6 C	+0.28 C
1939	7.4 C	+0.02 C
1940	6.6 C	-0.70 C
1941	6.8 C	-0.52 C
1942	6.8 C	-0.54 C
1943	7.8 C	+0.42 C
1944	7.1 C	-0.25 C
1945	7.9 C	+0.53 C
1946	7.6 C	+0.29 C
1947	7.0 C	-0.30 C
1948	7.2 C	-0.12 C
1949	7.5 C	+0.21 C
1950	7.2 C	-0.15 C
1951	6.7 C	-0.62 C
1952	6.4 C	-0.95 C
1953	7.9 C	+0.55 C
1954	6.9 C	-0.46 C
1955	6.8 C	-0.58 C
1956	6.7 C	-0.65 C
1957	7.2 C	-0.14 C
1958	6.9 C	-0.46 C
1959	7.8 C	+0.49 C
1960	7.5 C	+0.20 C
1961	7.4 C	+0.06 C
1962	6.6 C	-0.75 C
1963	6.7 C	-0.64 C
1964	7.1 C	-0.24 C
1965	6.4 C	-0.93 C
1966	6.7 C	-0.68 C
1967	7.1 C	-0.22 C
1968	6.7 C	-0.63 C
1969	6.6 C	-0.77 C
1970	6.6 C	-0.74 C
1971	7.4 C	+0.03 C
1972	7.3 C	-0.01 C
1973	6.8 C	-0.56 C
1974	7.4 C	+0.10 C
1975	7.1 C	-0.27 C
1976	7.1 C	-0.20 C
1977	6.8 C	-0.53 C
1978	6.6 C	-0.69 C
1979	6.1 C	-1.28 C
1980	6.9 C	-0.43 C
1981	6.5 C	-0.85 C
1982	7.4 C	+0.02 C
1983	7.0 C	-0.29 C
1984	7.3 C	-0.03 C
1985	6.6 C	-0.73 C
1986	6.7 C	-0.62 C
1987	7.0 C	-0.29 C
1988	7.4 C	+0.07 C
1989	7.6 C	+0.28 C
1990	7.7 C	+0.33 C
1991	7.5 C	+0.21 C
1992	7.5 C	+0.20 C
1993	6.7 C	-0.61 C
1994	6.9 C	-0.45 C
1995	7.0 C	-0.38 C
1996	7.0 C	-0.36 C
1997	7.9 C	+0.55 C
1998	7.4 C	+0.07 C
1999	7.5 C	+0.15 C
2000	7.5 C	+0.21 C
2001	7.2 C	-0.15 C
2002	8.1 C	+0.79 C
2003	8.4 C	+1.10 C
2004	8.1 C	+0.78 C
2005	7.7 C	+0.37 C
2006	8.2 C	+0.86 C
2007	7.8 C	+0.44 C
2008	7.9 C	+0.61 C
2009	8.2 C	+0.85 C
2010	6.7 C	-0.59 C
2011	8.1 C	+0.77 C
2012	7.3 C	-0.03 C
2013	7.4 C	+0.08 C
2014	8.6 C	+1.25 C
2015	7.9 C	+0.52 C
2016	7.9 C	+0.56 C
2017	8.1 C	+0.76 C
2018	7.9 C	+0.60 C
2019	7.9 C	+0.60 C
2020	8.0 C	+0.71 C
2021	7.8 C	+0.43 C
2022	8.2 C	+0.89 C
2023	8.0 C	+0.64 C
2024	8.1 C	+0.80 C
2025	9.0 C	+1.66 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.1) per decade over 1931 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 95 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Lerwick
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (0.1 to 0.1) per decade	0.2 F (0.1 to 0.3) per decade	1931 to 2025	95	Rise
Mean daily maximum	0.07 C (0.04 to 0.11) per decade	0.1 F (0.1 to 0.2) per decade	1931 to 2025	95	Rise
Mean daily minimum	0.1 C (0.1 to 0.2) per decade	0.2 F (0.2 to 0.3) per decade	1931 to 2025	95	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

1929 to 2026

Yearly extremes at Lerwick: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	23.4 C (74.1 F)	1991	19.0 C (66.1 F)	98
Coldest night (TNn)	-8.9 C (16.0 F)	1952	-5.5 C (22.0 F)	98
Wettest day (Rx1day)	106.9 mm (4.2 in)	1937	33.0 mm (1.3 in)	93
Wettest five days (Rx5day)	149.0 mm (5.9 in)	1995	70.0 mm (2.8 in)	91
Longest dry spell (CDD)	28 days	1947	13 days	90

Hottest day (TXx)

The hottest day of the year at Lerwick, 1929 to 2026. The record is 23.4 C (74.1 F) in 1991, marked on the chart; the median year is 19.0 C (66.1 F).

Hottest day (TXx) at Lerwick by year
Year	Hottest day (TXx)
1929	11.7 C (53.1 F)
1930	18.9 C (66.0 F)
1931	21.1 C (70.0 F)
1932	17.2 C (63.0 F)
1933	18.9 C (66.0 F)
1934	18.9 C (66.0 F)
1935	19.4 C (66.9 F)
1936	22.2 C (72.0 F)
1937	16.7 C (62.1 F)
1938	20.6 C (69.1 F)
1939	22.8 C (73.0 F)
1940	20.0 C (68.0 F)
1941	20.0 C (68.0 F)
1942	17.2 C (63.0 F)
1943	17.8 C (64.0 F)
1944	17.8 C (64.0 F)
1945	18.9 C (66.0 F)
1946	16.7 C (62.1 F)
1947	20.6 C (69.1 F)
1948	20.6 C (69.1 F)
1949	19.4 C (66.9 F)
1950	18.9 C (66.0 F)
1951	17.2 C (63.0 F)
1952	19.4 C (66.9 F)
1953	21.1 C (70.0 F)
1954	19.4 C (66.9 F)
1955	21.1 C (70.0 F)
1956	16.7 C (62.1 F)
1957	17.8 C (64.0 F)
1958	23.3 C (73.9 F)
1959	18.9 C (66.0 F)
1960	17.2 C (63.0 F)
1961	19.6 C (67.3 F)
1962	18.9 C (66.0 F)
1963	19.6 C (67.3 F)
1964	17.0 C (62.6 F)
1965	19.2 C (66.6 F)
1966	19.0 C (66.2 F)
1967	17.0 C (62.6 F)
1968	17.0 C (62.6 F)
1969	18.5 C (65.3 F)
1970	18.6 C (65.5 F)
1971	21.2 C (70.2 F)
1972	20.6 C (69.1 F)
1973	16.2 C (61.2 F)
1974	16.8 C (62.2 F)
1975	20.9 C (69.6 F)
1976	19.1 C (66.4 F)
1977	21.0 C (69.8 F)
1978	20.0 C (68.0 F)
1979	16.6 C (61.9 F)
1980	21.5 C (70.7 F)
1981	18.1 C (64.6 F)
1982	21.5 C (70.7 F)
1983	19.1 C (66.4 F)
1984	18.7 C (65.7 F)
1985	18.2 C (64.8 F)
1986	19.6 C (67.3 F)
1987	17.5 C (63.5 F)
1988	16.7 C (62.1 F)
1989	20.5 C (68.9 F)
1990	19.0 C (66.2 F)
1991	23.4 C (74.1 F)
1992	20.8 C (69.4 F)
1993	15.3 C (59.5 F)
1994	17.5 C (63.5 F)
1995	20.0 C (68.0 F)
1996	17.4 C (63.3 F)
1997	22.1 C (71.8 F)
1998	18.8 C (65.8 F)
1999	21.0 C (69.8 F)
2000	18.6 C (65.5 F)
2001	16.6 C (61.9 F)
2002	20.2 C (68.4 F)
2003	21.9 C (71.4 F)
2004	21.2 C (70.2 F)
2005	17.4 C (63.3 F)
2006	19.5 C (67.1 F)
2007	16.8 C (62.2 F)
2008	20.8 C (69.4 F)
2009	21.7 C (71.1 F)
2010	17.5 C (63.5 F)
2011	18.2 C (64.8 F)
2012	20.3 C (68.5 F)
2013	18.4 C (65.1 F)
2014	18.3 C (64.9 F)
2015	17.3 C (63.1 F)
2016	16.7 C (62.1 F)
2017	17.0 C (62.6 F)
2018	20.4 C (68.7 F)
2019	21.6 C (70.9 F)
2020	18.4 C (65.1 F)
2021	17.7 C (63.9 F)
2022	23.0 C (73.4 F)
2023	22.5 C (72.5 F)
2024	18.4 C (65.1 F)
2025	21.1 C (70.0 F)
2026	19.8 C (67.6 F)

Coldest night (TNn)

The coldest night of the year at Lerwick, 1929 to 2026. The record is -8.9 C (16.0 F) in 1952, marked on the chart; the median year is -5.5 C (22.0 F).

Coldest night (TNn) at Lerwick by year
Year	Coldest night (TNn)
1929	0.0 C (32.0 F)
1930	-4.4 C (24.1 F)
1931	-7.8 C (18.0 F)
1932	-5.6 C (21.9 F)
1933	-5.6 C (21.9 F)
1934	-5.6 C (21.9 F)
1935	-6.7 C (19.9 F)
1936	-6.1 C (21.0 F)
1937	-7.8 C (18.0 F)
1938	-6.7 C (19.9 F)
1939	-3.3 C (26.1 F)
1940	-7.2 C (19.0 F)
1941	-6.1 C (21.0 F)
1942	-6.7 C (19.9 F)
1943	-4.4 C (24.1 F)
1944	-5.0 C (23.0 F)
1945	-5.6 C (21.9 F)
1946	-6.1 C (21.0 F)
1947	-8.3 C (17.1 F)
1948	-5.0 C (23.0 F)
1949	-3.9 C (25.0 F)
1950	-6.7 C (19.9 F)
1951	-7.2 C (19.0 F)
1952	-8.9 C (16.0 F)
1953	-5.0 C (23.0 F)
1954	-3.9 C (25.0 F)
1955	-8.3 C (17.1 F)
1956	-6.7 C (19.9 F)
1957	-3.9 C (25.0 F)
1958	-7.8 C (18.0 F)
1959	-8.9 C (16.0 F)
1960	-5.6 C (21.9 F)
1961	-8.2 C (17.2 F)
1962	-7.2 C (19.0 F)
1963	-6.7 C (19.9 F)
1964	-4.8 C (23.4 F)
1965	-8.0 C (17.6 F)
1966	-5.7 C (21.7 F)
1967	-3.9 C (25.0 F)
1968	-6.0 C (21.2 F)
1969	-7.2 C (19.0 F)
1970	-6.8 C (19.8 F)
1971	-5.0 C (23.0 F)
1972	-2.5 C (27.5 F)
1973	-5.0 C (23.0 F)
1974	-4.6 C (23.7 F)
1975	-4.3 C (24.3 F)
1976	-7.1 C (19.2 F)
1977	-4.8 C (23.4 F)
1978	-6.6 C (20.1 F)
1979	-6.6 C (20.1 F)
1980	-7.3 C (18.9 F)
1981	-7.4 C (18.7 F)
1982	-5.7 C (21.7 F)
1983	-4.6 C (23.7 F)
1984	-6.3 C (20.7 F)
1985	-6.6 C (20.1 F)
1986	-5.1 C (22.8 F)
1987	-4.6 C (23.7 F)
1988	-4.0 C (24.8 F)
1989	-5.5 C (22.1 F)
1990	-3.8 C (25.2 F)
1991	-3.8 C (25.2 F)
1992	-6.1 C (21.0 F)
1993	-6.2 C (20.8 F)
1994	-5.9 C (21.4 F)
1995	-6.6 C (20.1 F)
1996	-3.0 C (26.6 F)
1997	-2.8 C (27.0 F)
1998	-6.0 C (21.2 F)
1999	-4.2 C (24.4 F)
2000	-5.5 C (22.1 F)
2001	-7.3 C (18.9 F)
2002	-4.0 C (24.8 F)
2003	-4.0 C (24.8 F)
2004	-5.3 C (22.5 F)
2005	-2.9 C (26.8 F)
2006	-4.1 C (24.6 F)
2007	-2.1 C (28.2 F)
2008	-4.4 C (24.1 F)
2009	-4.6 C (23.7 F)
2010	-7.4 C (18.7 F)
2011	-3.0 C (26.6 F)
2012	-3.0 C (26.6 F)
2013	-5.4 C (22.3 F)
2014	-2.2 C (28.0 F)
2015	-1.9 C (28.6 F)
2016	-4.0 C (24.8 F)
2017	-3.6 C (25.5 F)
2018	-5.7 C (21.7 F)
2019	-4.3 C (24.3 F)
2020	-1.8 C (28.8 F)
2021	-5.2 C (22.6 F)
2022	-2.3 C (27.9 F)
2023	-6.5 C (20.3 F)
2024	-7.0 C (19.4 F)
2025	-3.8 C (25.2 F)
2026	-5.8 C (21.6 F)

Wettest day (Rx1day)

The wettest day of the year at Lerwick, 1929 to 2026. The record is 106.9 mm (4.2 in) in 1937, marked on the chart; the median year is 33.0 mm (1.3 in).

Wettest day (Rx1day) at Lerwick by year
Year	Wettest day (Rx1day)
1929	n/a
1930	9.0 mm (0.35 in)
1931	96.0 mm (3.8 in)
1932	82.0 mm (3.2 in)
1933	90.4 mm (3.6 in)
1934	90.9 mm (3.6 in)
1935	78.0 mm (3.1 in)
1936	87.9 mm (3.5 in)
1937	106.9 mm (4.2 in)
1938	94.0 mm (3.7 in)
1939	33.0 mm (1.3 in)
1940	1.0 mm (0.04 in)
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	44.0 mm (1.7 in)
1946	35.0 mm (1.4 in)
1947	22.0 mm (0.9 in)
1948	33.0 mm (1.3 in)
1949	66.0 mm (2.6 in)
1950	28.0 mm (1.1 in)
1951	37.0 mm (1.5 in)
1952	40.0 mm (1.6 in)
1953	24.0 mm (0.9 in)
1954	48.0 mm (1.9 in)
1955	24.0 mm (0.9 in)
1956	27.0 mm (1.1 in)
1957	25.0 mm (1.0 in)
1958	31.0 mm (1.2 in)
1959	25.0 mm (1.0 in)
1960	27.0 mm (1.1 in)
1961	26.0 mm (1.0 in)
1962	33.0 mm (1.3 in)
1963	45.0 mm (1.8 in)
1964	36.0 mm (1.4 in)
1965	32.0 mm (1.3 in)
1966	50.0 mm (2.0 in)
1967	45.0 mm (1.8 in)
1968	31.0 mm (1.2 in)
1969	33.0 mm (1.3 in)
1970	38.0 mm (1.5 in)
1971	40.0 mm (1.6 in)
1972	30.0 mm (1.2 in)
1973	29.0 mm (1.1 in)
1974	23.0 mm (0.9 in)
1975	36.0 mm (1.4 in)
1976	29.0 mm (1.1 in)
1977	26.0 mm (1.0 in)
1978	26.0 mm (1.0 in)
1979	38.0 mm (1.5 in)
1980	25.0 mm (1.0 in)
1981	59.0 mm (2.3 in)
1982	32.0 mm (1.3 in)
1983	31.0 mm (1.2 in)
1984	33.0 mm (1.3 in)
1985	46.0 mm (1.8 in)
1986	33.0 mm (1.3 in)
1987	51.0 mm (2.0 in)
1988	52.0 mm (2.0 in)
1989	37.0 mm (1.5 in)
1990	27.0 mm (1.1 in)
1991	27.0 mm (1.1 in)
1992	35.0 mm (1.4 in)
1993	26.0 mm (1.0 in)
1994	47.0 mm (1.9 in)
1995	68.0 mm (2.7 in)
1996	29.0 mm (1.1 in)
1997	27.0 mm (1.1 in)
1998	35.0 mm (1.4 in)
1999	30.0 mm (1.2 in)
2000	25.0 mm (1.0 in)
2001	26.0 mm (1.0 in)
2002	23.6 mm (0.9 in)
2003	27.8 mm (1.1 in)
2004	63.6 mm (2.5 in)
2005	34.4 mm (1.4 in)
2006	49.2 mm (1.9 in)
2007	29.0 mm (1.1 in)
2008	30.2 mm (1.2 in)
2009	32.0 mm (1.3 in)
2010	35.2 mm (1.4 in)
2011	31.6 mm (1.2 in)
2012	64.2 mm (2.5 in)
2013	34.0 mm (1.3 in)
2014	86.6 mm (3.4 in)
2015	41.2 mm (1.6 in)
2016	22.6 mm (0.9 in)
2017	31.0 mm (1.2 in)
2018	30.8 mm (1.2 in)
2019	28.0 mm (1.1 in)
2020	31.1 mm (1.2 in)
2021	19.8 mm (0.8 in)
2022	24.6 mm (1.0 in)
2023	31.0 mm (1.2 in)
2024	44.6 mm (1.8 in)
2025	41.4 mm (1.6 in)
2026	29.2 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lerwick, 1929 to 2026. The record is 149.0 mm (5.9 in) in 1995, marked on the chart; the median year is 70.0 mm (2.8 in).

Wettest five days (Rx5day) at Lerwick by year
Year	Wettest five days (Rx5day)
1929	n/a
1930	n/a
1931	110.9 mm (4.4 in)
1932	43.4 mm (1.7 in)
1933	41.3 mm (1.6 in)
1934	116.6 mm (4.6 in)
1935	69.5 mm (2.7 in)
1936	109.5 mm (4.3 in)
1937	103.8 mm (4.1 in)
1938	117.8 mm (4.6 in)
1939	57.7 mm (2.3 in)
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	54.0 mm (2.1 in)
1946	49.0 mm (1.9 in)
1947	48.0 mm (1.9 in)
1948	70.0 mm (2.8 in)
1949	82.0 mm (3.2 in)
1950	66.0 mm (2.6 in)
1951	69.0 mm (2.7 in)
1952	71.0 mm (2.8 in)
1953	53.0 mm (2.1 in)
1954	68.0 mm (2.7 in)
1955	48.0 mm (1.9 in)
1956	49.0 mm (1.9 in)
1957	55.0 mm (2.2 in)
1958	58.0 mm (2.3 in)
1959	52.0 mm (2.0 in)
1960	46.0 mm (1.8 in)
1961	70.0 mm (2.8 in)
1962	51.0 mm (2.0 in)
1963	75.0 mm (3.0 in)
1964	63.0 mm (2.5 in)
1965	73.0 mm (2.9 in)
1966	63.0 mm (2.5 in)
1967	75.0 mm (3.0 in)
1968	82.0 mm (3.2 in)
1969	78.0 mm (3.1 in)
1970	69.0 mm (2.7 in)
1971	91.0 mm (3.6 in)
1972	65.0 mm (2.6 in)
1973	71.0 mm (2.8 in)
1974	54.0 mm (2.1 in)
1975	54.0 mm (2.1 in)
1976	52.0 mm (2.0 in)
1977	54.0 mm (2.1 in)
1978	69.0 mm (2.7 in)
1979	70.0 mm (2.8 in)
1980	54.0 mm (2.1 in)
1981	112.0 mm (4.4 in)
1982	69.0 mm (2.7 in)
1983	53.0 mm (2.1 in)
1984	59.0 mm (2.3 in)
1985	92.0 mm (3.6 in)
1986	72.0 mm (2.8 in)
1987	93.0 mm (3.7 in)
1988	86.0 mm (3.4 in)
1989	86.0 mm (3.4 in)
1990	86.0 mm (3.4 in)
1991	70.0 mm (2.8 in)
1992	73.0 mm (2.9 in)
1993	78.0 mm (3.1 in)
1994	69.0 mm (2.7 in)
1995	149.0 mm (5.9 in)
1996	86.0 mm (3.4 in)
1997	65.0 mm (2.6 in)
1998	78.0 mm (3.1 in)
1999	75.0 mm (3.0 in)
2000	79.0 mm (3.1 in)
2001	51.9 mm (2.0 in)
2002	75.6 mm (3.0 in)
2003	61.2 mm (2.4 in)
2004	91.6 mm (3.6 in)
2005	79.2 mm (3.1 in)
2006	117.6 mm (4.6 in)
2007	61.0 mm (2.4 in)
2008	53.3 mm (2.1 in)
2009	73.2 mm (2.9 in)
2010	75.9 mm (3.0 in)
2011	83.9 mm (3.3 in)
2012	83.0 mm (3.3 in)
2013	77.4 mm (3.0 in)
2014	131.0 mm (5.2 in)
2015	106.2 mm (4.2 in)
2016	70.1 mm (2.8 in)
2017	59.2 mm (2.3 in)
2018	65.8 mm (2.6 in)
2019	62.6 mm (2.5 in)
2020	71.6 mm (2.8 in)
2021	52.4 mm (2.1 in)
2022	52.6 mm (2.1 in)
2023	60.8 mm (2.4 in)
2024	72.4 mm (2.9 in)
2025	80.8 mm (3.2 in)
2026	51.8 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lerwick, 1929 to 2026. The record is 28 days in 1947, marked on the chart; the median year is 13 days.

Longest dry spell (CDD) at Lerwick by year
Year	Longest dry spell (CDD)
1929	n/a
1930	n/a
1931	1 day
1932	n/a
1933	1 day
1934	1 day
1935	1 day
1936	1 day
1937	1 day
1938	1 day
1939	1 day
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	15 days
1946	17 days
1947	28 days
1948	11 days
1949	14 days
1950	13 days
1951	23 days
1952	9 days
1953	16 days
1954	14 days
1955	19 days
1956	12 days
1957	11 days
1958	9 days
1959	20 days
1960	9 days
1961	7 days
1962	10 days
1963	21 days
1964	12 days
1965	10 days
1966	11 days
1967	11 days
1968	16 days
1969	9 days
1970	19 days
1971	10 days
1972	12 days
1973	9 days
1974	22 days
1975	11 days
1976	16 days
1977	18 days
1978	12 days
1979	7 days
1980	14 days
1981	9 days
1982	14 days
1983	8 days
1984	15 days
1985	7 days
1986	14 days
1987	11 days
1988	11 days
1989	9 days
1990	10 days
1991	14 days
1992	21 days
1993	9 days
1994	21 days
1995	19 days
1996	11 days
1997	11 days
1998	8 days
1999	19 days
2000	16 days
2001	22 days
2002	12 days
2003	21 days
2004	22 days
2005	10 days
2006	10 days
2007	13 days
2008	18 days
2009	20 days
2010	25 days
2011	18 days
2012	14 days
2013	23 days
2014	11 days
2015	7 days
2016	14 days
2017	11 days
2018	22 days
2019	16 days
2020	14 days
2021	15 days
2022	13 days
2023	22 days
2024	9 days
2025	18 days
2026	13 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

95 years with a frost

Across 95 years with a frost, the median last spring frost at Lerwick falls on 25 April and the median first autumn frost on 11 November, which leaves a median of 200 days between them.

In 1996 to 2025 the median growing season was 221 days. That is 38 days more than in 1931 to 1960.

Fitted over all years, the growing season changes by +5.0 days per decade at this station.

Frost dates and growing season at Lerwick
Measure	Median, all years	Earliest period (1931 to 1960)	Recent period (1996 to 2025)	Recent against earliest	Fitted trend
Last spring frost	25 April	4 May	14 April	20 days earlier	-2.8 days per decade
First autumn frost	11 November	7 November	20 November	13 days later	+2.2 days per decade
Growing days	200 days	183 days	221 days	38 days more	+5.0 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

80 years, 1946 to 2025

A day with at least 32.0 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 85.8 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Lerwick: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.0 mm (1.3 in)
5 years	41.5 mm (1.6 in)
10 years	49.4 mm (1.9 in)
25 years	61.7 mm (2.4 in)
50 years	72.8 mm (2.9 in)
100 years	85.8 mm (3.4 in)	Longer than the 80 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, 80 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: 86.6 mm (3.4 in) in 2014; 68.0 mm (2.7 in) in 1995; 66.0 mm (2.6 in) in 1949.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Lerwick had a mean temperature of 8.0 C (46.4 F) and 1,249.1 mm (49.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Stornoway Airport (United Kingdom, 354 km away), Tiree (United Kingdom, 524 km away) and Sandspit A (Canada, 6,666 km away).

Climate twins of Lerwick: 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
Stornoway Airport	United Kingdom	354 km (220 mi)	8.0 C (46.5 F)	1,178.7 mm (46.4 in)	0.43
Tiree	United Kingdom	524 km (326 mi)	8.9 C (48.0 F)	1,163.6 mm (45.8 in)	0.98
Sandspit A	Canada	6,666 km (4,142 mi)	8.0 C (46.4 F)	1,317.3 mm (51.9 in)	1.24

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 Lerwick standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lerwick 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).