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Built 2026-10-19 (19 October 2026)

Primrose Farm Threshold Days by Year (USC00016684)

5 fixed thresholds counted per year at Primrose Farm (USC00016684): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Primrose Farm Thresholds

  • Primrose Farm: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1929 with 50.
  • Primrose Farm: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1929 with 21.
  • Primrose Farm: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 1929 with 10.
  • Primrose Farm: days with 100 mm (3.94 in) or more of precipitation in 18 years, most in 1929 with 2.
  • 5 fixed thresholds have at least one qualifying day at Primrose Farm.
40 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Primrose Farm Days per year at Primrose Farm with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1929. 02040601922: 361923: 461924: 401927: 301928: 431929: 501930: 341931: 371932: 391933: 291934: 351935: 331936: 451937: 421938: 321939: 411940: 361941: 371942: 441943: 341944: 411946: 521947: 481948: 451949: 331950: 301951: 331952: 441953: 411954: 201955: 331956: 431957: 371958: 341959: 401960: 381961: 441962: 281963: 341964: 451922192819321936194019441949195319571961
Days per year at Primrose Farm with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 50 in 1929.
Days with 10 mm (0.39 in) or more of precipitation per year at Primrose Farm
YearDaysDecade average
19223640.8
19234640.8
19244040.8
19273040.8
19284340.8
19295040.8
19303436.7
19313736.7
19323936.7
19332936.7
19343536.7
19353336.7
19364536.7
19374236.7
19383236.7
19394136.7
19403641.1
19413741.1
19424441.1
19433441.1
19444141.1
19465241.1
19474841.1
19484541.1
19493341.1
19503035.5
19513335.5
19524435.5
19534135.5
19542035.5
19553335.5
19564335.5
19573735.5
19583435.5
19594035.5
19603837.8
19614437.8
19622837.8
19633437.8
19644537.8
First to last qualifying date each year at Primrose Farm For each year, a bar from the first to the last day at Primrose Farm meeting 10 mm (0.39 in). 1922: 5 January 1922 to 16 December 19221923: 1 January 1923 to 23 December 19231924: 3 January 1924 to 31 December 19241927: 12 February 1927 to 31 December 19271928: 9 January 1928 to 21 December 19281929: 6 January 1929 to 29 December 19291930: 3 January 1930 to 26 December 19301931: 12 January 1931 to 31 December 19311932: 6 January 1932 to 28 December 19321933: 9 January 1933 to 19 December 19331934: 2 January 1934 to 28 December 19341935: 9 January 1935 to 29 December 19351936: 2 January 1936 to 31 December 19361937: 5 January 1937 to 23 December 19371938: 7 January 1938 to 27 December 19381939: 5 January 1939 to 27 December 19391940: 12 January 1940 to 27 December 19401941: 3 January 1941 to 26 December 19411942: 1 January 1942 to 29 December 19421943: 9 January 1943 to 26 December 19431944: 3 January 1944 to 7 December 19441946: 6 January 1946 to 31 December 19461947: 1 January 1947 to 16 December 19471948: 13 January 1948 to 30 December 19481949: 5 January 1949 to 31 October 19491950: 7 January 1950 to 29 December 19501951: 4 January 1951 to 20 December 19511952: 5 January 1952 to 31 December 19521953: 2 January 1953 to 29 December 19531954: 20 February 1954 to 29 December 19541955: 1 January 1955 to 19 December 19551956: 19 January 1956 to 24 December 19561957: 25 January 1957 to 20 December 19571958: 21 January 1958 to 24 December 19581959: 8 January 1959 to 28 December 19591960: 6 January 1960 to 30 December 19601961: 19 January 1961 to 17 December 19611962: 6 January 1962 to 25 December 19621963: 12 January 1963 to 23 December 19631964: 1 January 1964 to 25 December 196419221929193419391944195019551960JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Primrose Farm meeting 10 mm (0.39 in).
First to last qualifying date each year at Primrose Farm
YearFirst dateLast date
19221922-01-051922-12-16
19231923-01-011923-12-23
19241924-01-031924-12-31
19271927-02-121927-12-31
19281928-01-091928-12-21
19291929-01-061929-12-29
19301930-01-031930-12-26
19311931-01-121931-12-31
19321932-01-061932-12-28
19331933-01-091933-12-19
19341934-01-021934-12-28
19351935-01-091935-12-29
19361936-01-021936-12-31
19371937-01-051937-12-23
19381938-01-071938-12-27
19391939-01-051939-12-27
19401940-01-121940-12-27
19411941-01-031941-12-26
19421942-01-011942-12-29
19431943-01-091943-12-26
19441944-01-031944-12-07
19461946-01-061946-12-31
19471947-01-011947-12-16
19481948-01-131948-12-30
19491949-01-051949-10-31
19501950-01-071950-12-29
19511951-01-041951-12-20
19521952-01-051952-12-31
19531953-01-021953-12-29
19541954-02-201954-12-29
19551955-01-011955-12-19
19561956-01-191956-12-24
19571957-01-251957-12-20
19581958-01-211958-12-24
19591959-01-081959-12-28
19601960-01-061960-12-30
19611961-01-191961-12-17
19621962-01-061962-12-25
19631963-01-121963-12-23
19641964-01-011964-12-25

Every Fixed Threshold

Fixed thresholds at Primrose Farm
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4050192945
25 mm (0.98 in): Days with 25 mm or more rain4021192921
50 mm (1.97 in): Days with 50 mm or more rain371019299
100 mm (3.94 in): Days with 100 mm or more rain18219292
200 mm (7.87 in): Days with 200 mm or more rain1119481

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1922.

Download the Data

  • Data for Primrose Farm 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). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).