Built 2026-10-16 (16 October 2026)

Soda Springs Weather Records (USC00048331)

Record envelope, standing records and threshold days for Soda Springs (USC00048331), California, United States, with 47 years of record.

Key Facts for Soda Springs

  • Soda Springs (USC00048331) is a weather station in California, United States at 39.32 latitude and -120.38 longitude, 2,059 m (6,755 ft) above sea level.
  • The station reports from 1913 to 1959, 47 years of record.
  • 1,464 records set at Soda Springs still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Soda Springs tied a daily record high maximum temperature of 12.8 C (55.0 F) on 19 December 1958.

About the Station

  • Location: California, United States, 39.32 latitude, -120.38 longitude.
  • Elevation: 2,059 m (6,755 ft).
  • Period of record: 1913 to 1959, 47 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Soda Springs, with 2026 drawn through them The band shows the record high and record low for each calendar day at Soda Springs. 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 Soda Springs. 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 Soda Springs, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.1 C (61.0 F)-31.1 C (-24.0 F)n/an/a
Feb18.3 C (64.9 F)-33.3 C (-27.9 F)n/an/a
Mar17.8 C (64.0 F)-28.9 C (-20.0 F)n/an/a
Apr22.2 C (72.0 F)-23.3 C (-9.9 F)n/an/a
May26.7 C (80.1 F)-16.7 C (1.9 F)n/an/a
Jun30.0 C (86.0 F)-6.1 C (21.0 F)n/an/a
Jul31.1 C (88.0 F)-2.2 C (28.0 F)n/an/a
Aug31.1 C (88.0 F)-4.4 C (24.1 F)n/an/a
Sep30.6 C (87.1 F)-6.7 C (19.9 F)n/an/a
Oct25.6 C (78.1 F)-14.4 C (6.1 F)n/an/a
Nov22.2 C (72.0 F)-21.1 C (-6.0 F)n/an/a
Dec19.4 C (66.9 F)-27.2 C (-17.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Soda Springs by the year they were set 1,464 records at Soda Springs still stand. 1913 holds the most, with 122. 0501001501913: 1221914: 811915: 481916: 441917: 571918: 121930: 271931: 361932: 611933: 471934: 421935: 351936: 361937: 521938: 341939: 451940: 461941: 321942: 351943: 331944: 301945: 461946: 191947: 271948: 411949: 371950: 521951: 351952: 451953: 481954: 431955: 461956: 321957: 271958: 11191319171932193619401944194819521956
1,464 records at Soda Springs still stand. 1913 holds the most, with 122.
Standing records at Soda Springs by the year they were set
Year setStanding records
1913122
191481
191548
191644
191757
191812
193027
193136
193261
193347
193442
193535
193636
193752
193834
193945
194046
194132
194235
194333
194430
194546
194619
194727
194841
194937
195052
195135
195245
195348
195443
195546
195632
195727
195811

Wettest Day of Each Month

Dec: 178.8 mm (7.0 in)
Record daily precipitation for each month at Soda Springs The wettest day on record for each calendar month at Soda Springs. The most was 178.8 mm (7.0 in) on 23 December 1955. 050100150200 Jan: 124.0 mm (4.9 in), 21 January 1943 Jan Feb: 140.0 mm (5.5 in), 4 February 1940 Feb Mar: 83.3 mm (3.3 in), 27 March 1940 Mar Apr: 77.2 mm (3.0 in), 8 April 1935 Apr May: 79.5 mm (3.1 in), 19 May 1957 May Jun: 76.7 mm (3.0 in), 7 June 1936 Jun Jul: 33.0 mm (1.3 in), 18 July 1953 Jul Aug: 15.7 mm (0.6 in), 12 August 1936 Aug Sep: 31.0 mm (1.2 in), 24 September 1934 Sep Oct: 104.6 mm (4.1 in), 30 October 1933 Oct Nov: 135.9 mm (5.4 in), 21 November 1950 Nov Dec: 178.8 mm (7.0 in), 23 December 1955 Dec
The wettest day on record for each calendar month at Soda Springs. The most was 178.8 mm (7.0 in) on 23 December 1955.
Record daily precipitation for each month at Soda Springs
MonthRecord daily precipitation (mm)Date
Jan124.0 mm (4.9 in)21 January 1943
Feb140.0 mm (5.5 in)4 February 1940
Mar83.3 mm (3.3 in)27 March 1940
Apr77.2 mm (3.0 in)8 April 1935
May79.5 mm (3.1 in)19 May 1957
Jun76.7 mm (3.0 in)7 June 1936
Jul33.0 mm (1.3 in)18 July 1953
Aug15.7 mm (0.6 in)12 August 1936
Sep31.0 mm (1.2 in)24 September 1934
Oct104.6 mm (4.1 in)30 October 1933
Nov135.9 mm (5.4 in)21 November 1950
Dec178.8 mm (7.0 in)23 December 1955

Period of Record Coverage

1913 to 1959
Days with data per year at Soda Springs 36 years of record at Soda Springs, 1913 to 1959. 7 years have data for under 90 percent of days and are left out of rankings: 1913, 1918, 1930, 1947, 1956, 1958, 1959. 1913: 232 of 365 days1914: 358 of 365 days1915: 362 of 365 days1916: 359 of 366 days1917: 357 of 365 days1918: 148 of 365 days1930: 289 of 365 days1931: 363 of 365 days1932: 362 of 366 days1933: 364 of 365 days1934: 364 of 365 days1935: 365 of 365 days1936: 336 of 366 days1937: 364 of 365 days1938: 365 of 365 days1939: 365 of 365 days1940: 365 of 366 days1941: 365 of 365 days1942: 354 of 365 days1943: 359 of 365 days1944: 364 of 366 days1945: 364 of 365 days1946: 363 of 365 days1947: 265 of 365 days1948: 350 of 366 days1949: 358 of 365 days1950: 359 of 365 days1951: 358 of 365 days1952: 347 of 366 days1953: 361 of 365 days1954: 363 of 365 days1955: 361 of 365 days1956: 311 of 366 days1957: 354 of 365 days1958: 154 of 365 days1959: 6 of 365 days1915193019351940194519501955
36 years of record at Soda Springs, 1913 to 1959. 7 years have data for under 90 percent of days and are left out of rankings: 1913, 1918, 1930, 1947, 1956, 1958, 1959.
Days with data per year at Soda Springs
YearDays with dataShare of yearComplete
191323264%No
191435898%Yes
191536299%Yes
191635998%Yes
191735798%Yes
191814841%No
193028979%No
193136399%Yes
193236299%Yes
1933364100%Yes
1934364100%Yes
1935365100%Yes
193633692%Yes
1937364100%Yes
1938365100%Yes
1939365100%Yes
1940365100%Yes
1941365100%Yes
194235497%Yes
194335998%Yes
194436499%Yes
1945364100%Yes
194636399%Yes
194726573%No
194835096%Yes
194935898%Yes
195035998%Yes
195135898%Yes
195234795%Yes
195336199%Yes
195436399%Yes
195536199%Yes
195631185%No
195735497%Yes
195815442%No
195962%No

Latest Records

20
Latest records at Soda Springs
DateStationRecordValueBeat old record byOld record stoodSignificance
19 December 1958Soda Springs, USdaily high max (Tie)12.8 C (55.0 F)tie27 years3 of 100 (Routine)
18 December 1958Soda Springs, USdaily high max15.0 C (59.0 F)1.7 C (3.1 F)16 years11 of 100 (Routine)
16 December 1958Soda Springs, USdaily high max (Tie)14.4 C (57.9 F)tie16 years2 of 100 (Routine)
14 December 1958Soda Springs, USdaily high max15.0 C (59.0 F)0.6 C (1.1 F)4 years6 of 100 (Routine)
11 December 1958Soda Springs, USdaily high max16.7 C (62.1 F)1.1 C (2.0 F)8 years8 of 100 (Routine)
10 December 1958Soda Springs, USdaily high max (Tie)16.1 C (61.0 F)tie0 years1 of 100 (Routine)
31 July 1958Soda Springs, USdaily low min (Tie)1.1 C (34.0 F)tie17 years2 of 100 (Routine)
21 July 1958Soda Springs, USdaily low min (Tie)2.2 C (36.0 F)tie17 years2 of 100 (Routine)
4 July 1958Soda Springs, USdaily low min (Tie)-0.6 C (30.9 F)tie11 years1 of 100 (Routine)
3 July 1958Soda Springs, USmonthly low min (Tie)-2.2 C (28.0 F)tie2 years3 of 100 (Routine)
28 June 1958Soda Springs, USdaily low min-1.7 C (28.9 F)2.8 C (5.0 F)28 years20 of 100 (Routine)
26 March 1958Soda Springs, USdaily low min (Tie)-19.4 C (-2.9 F)tie4 years1 of 100 (Routine)
9 March 1958Soda Springs, USdaily low min-23.3 C (-9.9 F)3.9 C (7.0 F)1 year10 of 100 (Routine)
24 February 1958Soda Springs, USdaily high min1.7 C (35.1 F)1.7 C (3.1 F)0 years6 of 100 (Routine)
23 February 1958Soda Springs, USdaily high min1.7 C (35.1 F)2.3 C (4.1 F)0 years7 of 100 (Routine)
22 February 1958Soda Springs, USdaily high max (Tie)12.2 C (54.0 F)tie11 years1 of 100 (Routine)
19 February 1958Soda Springs, USdaily high min0.6 C (33.1 F)0.6 C (1.1 F)44 years17 of 100 (Routine)
18 February 1958Soda Springs, USmonthly high min (Tie)2.2 C (36.0 F)tie22 years5 of 100 (Routine)
18 January 1958Soda Springs, USdaily high max11.1 C (52.0 F)2.2 C (4.0 F)14 years11 of 100 (Routine)
23 December 1957Soda Springs, USdaily low min-23.3 C (-9.9 F)1.6 C (2.9 F)8 years8 of 100 (Routine)

Climate Trend

27 complete years, 1915 to 1957
Annual mean temperature at Soda Springs as warming stripes, 1915 to 1957 One stripe for each of 27 complete years at Soda Springs, 1915 to 1957. Blue stripes are years cooler than the station's own mean of 4.8 C (40.7 F); red stripes are warmer. The coolest year was 1955, at 3.7 C (38.7 F), and the warmest was 1915, at 6.4 C (43.5 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1915: 6.4 C, +1.6 C from the station mean1916: 5.4 C, +0.6 C from the station mean1917: 5.9 C, +1.1 C from the station mean1931: 4.6 C, -0.3 C from the station mean1932: 4.5 C, -0.3 C from the station mean1933: 4.7 C, -0.2 C from the station mean1934: 6.1 C, +1.3 C from the station mean1935: 4.2 C, -0.6 C from the station mean1937: 4.2 C, -0.7 C from the station mean1938: 4.3 C, -0.5 C from the station mean1939: 5.5 C, +0.7 C from the station mean1940: 5.3 C, +0.5 C from the station mean1941: 4.7 C, -0.1 C from the station mean1942: 4.7 C, -0.1 C from the station mean1943: 5.7 C, +0.9 C from the station mean1944: 4.9 C, +0.1 C from the station mean1945: 5.0 C, +0.2 C from the station mean1946: 4.6 C, -0.2 C from the station mean1948: 3.9 C, -0.9 C from the station mean1949: 4.3 C, -0.5 C from the station mean1950: 5.3 C, +0.4 C from the station mean1951: 4.9 C, +0.1 C from the station mean1952: 4.3 C, -0.6 C from the station mean1953: 4.3 C, -0.6 C from the station mean1954: 4.8 C, 0.0 C from the station mean1955: 3.7 C, -1.1 C from the station mean1957: 4.0 C, -0.8 C from the station mean191519201925193019351940194519501955
One stripe for each of 27 complete years at Soda Springs, 1915 to 1957. Blue stripes are years cooler than the station's own mean of 4.8 C (40.7 F); red stripes are warmer. The coolest year was 1955, at 3.7 C (38.7 F), and the warmest was 1915, at 6.4 C (43.5 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Soda Springs as warming stripes, 1915 to 1957
YearAnnual mean temperatureDifference from the station mean
19156.4 C+1.56 C
19165.4 C+0.61 C
19175.9 C+1.09 C
19314.6 C-0.26 C
19324.5 C-0.30 C
19334.7 C-0.17 C
19346.1 C+1.30 C
19354.2 C-0.59 C
19374.2 C-0.68 C
19384.3 C-0.49 C
19395.5 C+0.67 C
19405.3 C+0.48 C
19414.7 C-0.09 C
19424.7 C-0.09 C
19435.7 C+0.89 C
19444.9 C+0.10 C
19455.0 C+0.15 C
19464.6 C-0.23 C
19483.9 C-0.92 C
19494.3 C-0.51 C
19505.3 C+0.42 C
19514.9 C+0.07 C
19524.3 C-0.56 C
19534.3 C-0.56 C
19544.8 C-0.05 C
19553.7 C-1.12 C
19574.0 C-0.79 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

1913 to 1959
Yearly extremes at Soda Springs: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)31.1 C (88.0 F)191529.4 C (84.9 F)36
Coldest night (TNn)-33.3 C (-27.9 F)1932-24.4 C (-11.9 F)35
Wettest day (Rx1day)178.8 mm (7.0 in)195573.9 mm (2.9 in)35
Wettest five days (Rx5day)530.4 mm (20.9 in)1955168.4 mm (6.6 in)34
Longest dry spell (CDD)103 days193253 days35

Hottest day (TXx)

Hottest day (TXx) at Soda Springs by year The hottest day of the year at Soda Springs, 1913 to 1959. The record is 31.1 C (88.0 F) in 1915, marked on the chart; the median year is 29.4 C (84.9 F). 1015202530351920193019401950Record: 31.1 C (88.0 F) in 1915
The hottest day of the year at Soda Springs, 1913 to 1959. The record is 31.1 C (88.0 F) in 1915, marked on the chart; the median year is 29.4 C (84.9 F).
Hottest day (TXx) at Soda Springs by year
YearHottest day (TXx)
191321.7 C (71.1 F)
191429.4 C (84.9 F)
191531.1 C (88.0 F)
191630.0 C (86.0 F)
191731.1 C (88.0 F)
191822.2 C (72.0 F)
193029.4 C (84.9 F)
193131.1 C (88.0 F)
193229.4 C (84.9 F)
193331.1 C (88.0 F)
193429.4 C (84.9 F)
193529.4 C (84.9 F)
193629.4 C (84.9 F)
193730.6 C (87.1 F)
193831.1 C (88.0 F)
193929.4 C (84.9 F)
194029.4 C (84.9 F)
194128.3 C (82.9 F)
194230.0 C (86.0 F)
194329.4 C (84.9 F)
194430.0 C (86.0 F)
194531.1 C (88.0 F)
194630.0 C (86.0 F)
194727.8 C (82.0 F)
194827.8 C (82.0 F)
194927.2 C (81.0 F)
195030.6 C (87.1 F)
195128.3 C (82.9 F)
195227.2 C (81.0 F)
195328.3 C (82.9 F)
195428.9 C (84.0 F)
195530.6 C (87.1 F)
195627.2 C (81.0 F)
195728.9 C (84.0 F)
195827.8 C (82.0 F)
195911.1 C (52.0 F)

Coldest night (TNn)

Coldest night (TNn) at Soda Springs by year The coldest night of the year at Soda Springs, 1913 to 1959. The record is -33.3 C (-27.9 F) in 1932, marked on the chart; the median year is -24.4 C (-11.9 F). -40-30-20-101920193019401950Record: -33.3 C (-27.9 F) in 1932
The coldest night of the year at Soda Springs, 1913 to 1959. The record is -33.3 C (-27.9 F) in 1932, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at Soda Springs by year
YearColdest night (TNn)
1913-12.8 C (9.0 F)
1914-23.3 C (-9.9 F)
1915-21.7 C (-7.1 F)
1916-23.9 C (-11.0 F)
1917-22.2 C (-8.0 F)
1918-20.0 C (-4.0 F)
1930-20.6 C (-5.1 F)
1931-24.4 C (-11.9 F)
1932-33.3 C (-27.9 F)
1933-27.8 C (-18.0 F)
1934-21.1 C (-6.0 F)
1935-29.4 C (-20.9 F)
1936-24.4 C (-11.9 F)
1937-29.4 C (-20.9 F)
1938-25.6 C (-14.1 F)
1939-26.7 C (-16.1 F)
1940-21.7 C (-7.1 F)
1941-22.8 C (-9.0 F)
1942-26.7 C (-16.1 F)
1943-26.7 C (-16.1 F)
1944-23.3 C (-9.9 F)
1945-24.4 C (-11.9 F)
1946-23.3 C (-9.9 F)
1947-20.0 C (-4.0 F)
1948-26.1 C (-15.0 F)
1949-32.8 C (-27.0 F)
1950-29.4 C (-20.9 F)
1951-28.9 C (-20.0 F)
1952-26.1 C (-15.0 F)
1953-22.8 C (-9.0 F)
1954-23.9 C (-11.0 F)
1955-27.2 C (-17.0 F)
1956-28.3 C (-18.9 F)
1957-26.7 C (-16.1 F)
1958-23.3 C (-9.9 F)
1959n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Soda Springs by year The wettest day of the year at Soda Springs, 1913 to 1959. The record is 178.8 mm (7.0 in) in 1955, marked on the chart; the median year is 73.9 mm (2.9 in). 0501001502001920193019401950Record: 178.8 mm (7.0 in) in 1955
The wettest day of the year at Soda Springs, 1913 to 1959. The record is 178.8 mm (7.0 in) in 1955, marked on the chart; the median year is 73.9 mm (2.9 in).
Wettest day (Rx1day) at Soda Springs by year
YearWettest day (Rx1day)
1913n/a
191440.6 mm (1.6 in)
191533.0 mm (1.3 in)
191622.9 mm (0.9 in)
191717.8 mm (0.7 in)
191828.4 mm (1.1 in)
193041.4 mm (1.6 in)
193178.7 mm (3.1 in)
193246.7 mm (1.8 in)
1933104.6 mm (4.1 in)
193441.9 mm (1.6 in)
193577.2 mm (3.0 in)
193676.7 mm (3.0 in)
1937147.3 mm (5.8 in)
193875.7 mm (3.0 in)
193950.3 mm (2.0 in)
1940140.0 mm (5.5 in)
1941128.5 mm (5.1 in)
1942103.6 mm (4.1 in)
1943124.0 mm (4.9 in)
194466.0 mm (2.6 in)
194599.8 mm (3.9 in)
194690.4 mm (3.6 in)
194763.0 mm (2.5 in)
194861.2 mm (2.4 in)
194971.6 mm (2.8 in)
1950135.9 mm (5.4 in)
195170.6 mm (2.8 in)
195273.9 mm (2.9 in)
195379.8 mm (3.1 in)
195468.6 mm (2.7 in)
1955178.8 mm (7.0 in)
195667.1 mm (2.6 in)
1957105.7 mm (4.2 in)
195897.5 mm (3.8 in)
195953.3 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Soda Springs by year The wettest five days of the year at Soda Springs, 1913 to 1959. The record is 530.4 mm (20.9 in) in 1955, marked on the chart; the median year is 168.4 mm (6.6 in). 02004006001920193019401950Record: 530.4 mm (20.9 in) in 1955
The wettest five days of the year at Soda Springs, 1913 to 1959. The record is 530.4 mm (20.9 in) in 1955, marked on the chart; the median year is 168.4 mm (6.6 in).
Wettest five days (Rx5day) at Soda Springs by year
YearWettest five days (Rx5day)
1913n/a
1914n/a
191582.6 mm (3.3 in)
19160.0 mm (0.00 in)
191722.8 mm (0.9 in)
191812.7 mm (0.5 in)
193079.2 mm (3.1 in)
1931211.5 mm (8.3 in)
1932128.0 mm (5.0 in)
1933184.7 mm (7.3 in)
1934116.9 mm (4.6 in)
1935157.6 mm (6.2 in)
1936170.7 mm (6.7 in)
1937325.9 mm (12.8 in)
1938211.8 mm (8.3 in)
1939101.8 mm (4.0 in)
1940259.8 mm (10.2 in)
1941188.2 mm (7.4 in)
1942249.4 mm (9.8 in)
1943297.0 mm (11.7 in)
1944137.6 mm (5.4 in)
1945232.7 mm (9.2 in)
1946250.2 mm (9.9 in)
1947112.6 mm (4.4 in)
1948135.7 mm (5.3 in)
1949136.1 mm (5.4 in)
1950452.4 mm (17.8 in)
1951239.5 mm (9.4 in)
1952206.0 mm (8.1 in)
1953161.8 mm (6.4 in)
1954172.6 mm (6.8 in)
1955530.4 mm (20.9 in)
1956166.1 mm (6.5 in)
1957216.0 mm (8.5 in)
1958141.4 mm (5.6 in)
195997.8 mm (3.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Soda Springs by year The longest dry spell of the year at Soda Springs, 1913 to 1959. The record is 103 days in 1932, marked on the chart; the median year is 53 days. 0501001501920193019401950Record: 103 days in 1932
The longest dry spell of the year at Soda Springs, 1913 to 1959. The record is 103 days in 1932, marked on the chart; the median year is 53 days.
Longest dry spell (CDD) at Soda Springs by year
YearLongest dry spell (CDD)
1913n/a
19142 days
191514 days
191615 days
191723 days
191814 days
193027 days
193145 days
1932103 days
193356 days
193461 days
193587 days
193643 days
193760 days
193853 days
193986 days
194065 days
194140 days
194246 days
194378 days
194455 days
194562 days
194655 days
194784 days
194887 days
194982 days
195037 days
195162 days
195240 days
195341 days
195439 days
195561 days
195630 days
195791 days
195820 days
19594 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

27 years with a frost

Across 27 years with a frost, the median last spring frost at Soda Springs falls on 20 June and the median first autumn frost on 22 August, which leaves a median of 64 days between them.

Fitted over all years, the growing season changes by -9.3 days per decade at this station.

Frost dates and growing season at Soda Springs
MeasureMedian, all yearsEarliest periodRecent period (1915 to 1957)Recent against earliestFitted trend
Last spring frost20 Junen/a20 Junen/a+3.6 days per decade
First autumn frost22 Augustn/a22 Augustn/a-5.7 days per decade
Growing days64 daysn/a64 daysn/a-9.3 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 Soda Springs standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Soda Springs 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 . Last revised (2025-12-31).