Built 2026-10-19 (19 October 2026)

Ronneby Weather Records (SWE00162899)

Record envelope, standing records and threshold days for Ronneby (SWE00162899), Sweden, with 30 years of record.

Key Facts for Ronneby

  • Ronneby (SWE00162899) is a weather station in Sweden at 56.20 latitude and 15.28 longitude, 10 m (33 ft) above sea level.
  • The station reports from 1931 to 1960, 30 years of record.
  • 1,464 records set at Ronneby still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Sweden, 56.20 latitude, 15.28 longitude.
  • Elevation: 10 m (33 ft).
  • Period of record: 1931 to 1960, 30 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Ronneby, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ronneby. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Ronneby. 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 Ronneby, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan9.4 C (48.9 F)-31.8 C (-25.2 F)n/an/a
Feb13.2 C (55.8 F)-27.7 C (-17.9 F)n/an/a
Mar17.8 C (64.0 F)-25.0 C (-13.0 F)n/an/a
Apr23.6 C (74.5 F)-12.0 C (10.4 F)n/an/a
May27.0 C (80.6 F)-5.2 C (22.6 F)n/an/a
Jun32.6 C (90.7 F)-2.5 C (27.5 F)n/an/a
Jul32.5 C (90.5 F)2.0 C (35.6 F)n/an/a
Aug31.2 C (88.2 F)1.0 C (33.8 F)n/an/a
Sep26.8 C (80.2 F)-4.5 C (23.9 F)n/an/a
Oct20.0 C (68.0 F)-11.0 C (12.2 F)n/an/a
Nov13.0 C (55.4 F)-12.4 C (9.7 F)n/an/a
Dec12.0 C (53.6 F)-19.6 C (-3.3 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ronneby by the year they were set 1,464 records at Ronneby still stand. 1938 holds the most, with 81. 02550751001931: 641932: 411933: 291934: 721935: 441936: 411937: 471938: 811939: 681940: 651941: 721942: 811943: 381944: 331945: 451946: 371947: 651948: 451951: 511952: 621953: 481954: 371955: 561956: 611957: 621958: 311959: 571960: 311931193419371940194319461951195419571960
1,464 records at Ronneby still stand. 1938 holds the most, with 81.
Standing records at Ronneby by the year they were set
Year setStanding records
193164
193241
193329
193472
193544
193641
193747
193881
193968
194065
194172
194281
194338
194433
194545
194637
194765
194845
195151
195262
195348
195437
195556
195661
195762
195831
195957
196031

Period of Record Coverage

1931 to 1960
Days with data per year at Ronneby 28 years of record at Ronneby, 1931 to 1960. Every year has data for at least 90 percent of its days. 1931: 365 of 365 days1932: 366 of 366 days1933: 365 of 365 days1934: 365 of 365 days1935: 365 of 365 days1936: 366 of 366 days1937: 365 of 365 days1938: 365 of 365 days1939: 365 of 365 days1940: 365 of 366 days1941: 364 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days19351940194519551960
28 years of record at Ronneby, 1931 to 1960. Every year has data for at least 90 percent of its days.
Days with data per year at Ronneby
YearDays with dataShare of yearComplete
1931365100%Yes
1932366100%Yes
1933365100%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938365100%Yes
1939365100%Yes
1940365100%Yes
1941364100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes

Latest Records

0

No records were set at this station in the latest data.

Climate Trend

28 complete years, 1931 to 1960
Annual mean temperature at Ronneby as warming stripes, 1931 to 1960 One stripe for each of 28 complete years at Ronneby, 1931 to 1960. Blue stripes are years cooler than the station's own mean of 7.1 C (44.7 F); red stripes are warmer. The coolest year was 1942, at 5.1 C (41.1 F), and the warmest was 1934, at 8.9 C (48.0 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1931: 5.9 C, -1.1 C from the station mean1932: 7.2 C, +0.1 C from the station mean1933: 6.9 C, -0.1 C from the station mean1934: 8.9 C, +1.8 C from the station mean1935: 7.7 C, +0.6 C from the station mean1936: 7.6 C, +0.5 C from the station mean1937: 7.6 C, +0.6 C from the station mean1938: 8.5 C, +1.4 C from the station mean1939: 7.8 C, +0.7 C from the station mean1940: 5.1 C, -2.0 C from the station mean1941: 5.8 C, -1.3 C from the station mean1942: 5.1 C, -2.0 C from the station mean1943: 7.9 C, +0.8 C from the station mean1944: 7.4 C, +0.4 C from the station mean1945: 7.9 C, +0.8 C from the station mean1946: 7.0 C, 0.0 C from the station mean1947: 6.4 C, -0.6 C from the station mean1948: 7.4 C, +0.3 C from the station mean1951: 7.3 C, +0.2 C from the station mean1952: 5.9 C, -1.1 C from the station mean1953: 8.1 C, +1.0 C from the station mean1954: 6.7 C, -0.3 C from the station mean1955: 6.4 C, -0.7 C from the station mean1956: 5.9 C, -1.2 C from the station mean1957: 7.4 C, +0.3 C from the station mean1958: 6.5 C, -0.5 C from the station mean1959: 8.3 C, +1.2 C from the station mean1960: 7.3 C, +0.2 C from the station mean1931193519401945195019551960
One stripe for each of 28 complete years at Ronneby, 1931 to 1960. Blue stripes are years cooler than the station's own mean of 7.1 C (44.7 F); red stripes are warmer. The coolest year was 1942, at 5.1 C (41.1 F), and the warmest was 1934, at 8.9 C (48.0 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Ronneby as warming stripes, 1931 to 1960
YearAnnual mean temperatureDifference from the station mean
19315.9 C-1.14 C
19327.2 C+0.09 C
19336.9 C-0.13 C
19348.9 C+1.84 C
19357.7 C+0.60 C
19367.6 C+0.51 C
19377.6 C+0.57 C
19388.5 C+1.40 C
19397.8 C+0.69 C
19405.1 C-1.97 C
19415.8 C-1.25 C
19425.1 C-1.98 C
19437.9 C+0.80 C
19447.4 C+0.36 C
19457.9 C+0.82 C
19467.0 C-0.04 C
19476.4 C-0.63 C
19487.4 C+0.31 C
19517.3 C+0.25 C
19525.9 C-1.13 C
19538.1 C+1.03 C
19546.7 C-0.32 C
19556.4 C-0.71 C
19565.9 C-1.19 C
19577.4 C+0.31 C
19586.5 C-0.53 C
19598.3 C+1.25 C
19607.3 C+0.23 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1931 to 1960
Yearly extremes at Ronneby: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)32.6 C (90.7 F)193529.2 C (84.6 F)28
Coldest night (TNn)-31.8 C (-25.2 F)1942-19.4 C (-2.9 F)28

Hottest day (TXx)

Hottest day (TXx) at Ronneby by year The hottest day of the year at Ronneby, 1931 to 1960. The record is 32.6 C (90.7 F) in 1935, marked on the chart; the median year is 29.2 C (84.6 F). 2628303234193519401945195019551960Record: 32.6 C (90.7 F) in 1935
The hottest day of the year at Ronneby, 1931 to 1960. The record is 32.6 C (90.7 F) in 1935, marked on the chart; the median year is 29.2 C (84.6 F).
Hottest day (TXx) at Ronneby by year
YearHottest day (TXx)
193128.0 C (82.4 F)
193227.5 C (81.5 F)
193328.0 C (82.4 F)
193430.6 C (87.1 F)
193532.6 C (90.7 F)
193631.5 C (88.7 F)
193732.5 C (90.5 F)
193828.5 C (83.3 F)
193929.0 C (84.2 F)
194029.7 C (85.5 F)
194130.5 C (86.9 F)
194227.4 C (81.3 F)
194330.5 C (86.9 F)
194429.4 C (84.9 F)
194529.6 C (85.3 F)
194627.0 C (80.6 F)
194731.2 C (88.2 F)
194829.0 C (84.2 F)
195128.1 C (82.6 F)
195226.0 C (78.8 F)
195331.4 C (88.5 F)
195428.0 C (82.4 F)
195530.8 C (87.4 F)
195630.4 C (86.7 F)
195728.2 C (82.8 F)
195828.7 C (83.7 F)
195931.6 C (88.9 F)
196026.8 C (80.2 F)

Coldest night (TNn)

Coldest night (TNn) at Ronneby by year The coldest night of the year at Ronneby, 1931 to 1960. The record is -31.8 C (-25.2 F) in 1942, marked on the chart; the median year is -19.4 C (-2.9 F). -35-30-25-20-15-10193519401945195019551960Record: -31.8 C (-25.2 F) in 1942
The coldest night of the year at Ronneby, 1931 to 1960. The record is -31.8 C (-25.2 F) in 1942, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Ronneby by year
YearColdest night (TNn)
1931-22.0 C (-7.6 F)
1932-21.0 C (-5.8 F)
1933-16.0 C (3.2 F)
1934-13.2 C (8.2 F)
1935-12.0 C (10.4 F)
1936-15.8 C (3.6 F)
1937-17.5 C (0.5 F)
1938-16.0 C (3.2 F)
1939-19.6 C (-3.3 F)
1940-27.7 C (-17.9 F)
1941-22.1 C (-7.8 F)
1942-31.8 C (-25.2 F)
1943-21.6 C (-6.9 F)
1944-17.0 C (1.4 F)
1945-14.0 C (6.8 F)
1946-22.8 C (-9.0 F)
1947-23.0 C (-9.4 F)
1948-21.0 C (-5.8 F)
1951-12.0 C (10.4 F)
1952-16.8 C (1.8 F)
1953-19.2 C (-2.6 F)
1954-14.8 C (5.4 F)
1955-20.0 C (-4.0 F)
1956-22.9 C (-9.2 F)
1957-14.6 C (5.7 F)
1958-21.0 C (-5.8 F)
1959-18.0 C (-0.4 F)
1960-22.4 C (-8.3 F)

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

28 years with a frost

Across 28 years with a frost, the median last spring frost at Ronneby falls on 23 May and the median first autumn frost on 2 October, which leaves a median of 137 days between them.

Fitted over all years, the growing season changes by +3.6 days per decade at this station.

Frost dates and growing season at Ronneby
MeasureMedian, all yearsEarliest periodRecent period (1931 to 1960)Recent against earliestFitted trend
Last spring frost23 Mayn/a23 Mayn/a-1.4 days per decade
First autumn frost2 Octobern/a2 Octobern/a+2.2 days per decade
Growing days137 daysn/a137 daysn/a+3.6 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.

Download the Data

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