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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Pacelma Threshold Days by Year (RSM00027858)

6 fixed thresholds counted per year at Pacelma (RSM00027858): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pacelma Thresholds

  • Pacelma: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1980 with 22.
  • Pacelma: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1951 with 4.
  • Pacelma: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1939 with 1.
  • 6 fixed thresholds have at least one qualifying day at Pacelma.
56 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Pacelma Days per year at Pacelma with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1980. 01020301936: 121937: 111938: 31939: 81940: 111941: 111942: 91943: 111944: 171945: 171946: 91947: 141948: 71949: 71950: 61951: 91952: 91953: 101954: 191955: 191956: 141957: 121958: 111959: 61960: 71961: 41962: 121963: 101964: 141965: 101967: 181968: 131969: 181970: 161971: 61972: 91973: 161974: 151975: 51976: 181977: 161978: 231979: 181980: 221981: 121982: 91983: 61984: 141985: 181986: 61987: 91989: 181990: 191991: 111992: 112025: 31936194219481954196019671973197919851992
Days per year at Pacelma with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1980.
Days with 10 mm (0.39 in) or more of precipitation per year at Pacelma
YearDaysDecade average
1936128.5
1937118.5
193838.5
193988.5
19401111.3
19411111.3
1942911.3
19431111.3
19441711.3
19451711.3
1946911.3
19471411.3
1948711.3
1949711.3
1950611.5
1951911.5
1952911.5
19531011.5
19541911.5
19551911.5
19561411.5
19571211.5
19581111.5
1959611.5
1960711.8
1961411.8
19621211.8
19631011.8
19641411.8
19651011.8
19671811.8
19681311.8
19691811.8
19701614.2
1971614.2
1972914.2
19731614.2
19741514.2
1975514.2
19761814.2
19771614.2
19782314.2
19791814.2
19802212.7
19811212.7
1982912.7
1983612.7
19841412.7
19851812.7
1986612.7
1987912.7
19891812.7
19901913.7
19911113.7
19921113.7
202533
First to last qualifying date each year at Pacelma For each year, a bar from the first to the last day at Pacelma meeting 10 mm (0.39 in). 1936: 24 June 1936 to 10 October 19361937: 1 May 1937 to 26 August 19371938: 30 April 1938 to 9 November 19381939: 28 May 1939 to 3 October 19391940: 31 March 1940 to 26 October 19401941: 25 April 1941 to 28 October 19411942: 2 May 1942 to 19 October 19421943: 2 April 1943 to 14 November 19431944: 20 April 1944 to 23 November 19441945: 13 May 1945 to 12 October 19451946: 24 February 1946 to 26 September 19461947: 2 May 1947 to 27 November 19471948: 3 May 1948 to 9 November 19481949: 22 June 1949 to 1 December 19491950: 15 March 1950 to 4 October 19501951: 19 April 1951 to 29 August 19511952: 20 April 1952 to 8 November 19521953: 30 May 1953 to 2 December 19531954: 14 April 1954 to 26 December 19541955: 11 January 1955 to 18 December 19551956: 2 January 1956 to 14 December 19561957: 10 February 1957 to 1 December 19571958: 25 April 1958 to 26 October 19581959: 16 June 1959 to 29 September 19591960: 14 January 1960 to 28 October 19601961: 15 June 1961 to 15 October 19611962: 3 January 1962 to 16 December 19621963: 26 April 1963 to 21 November 19631964: 21 February 1964 to 20 December 19641965: 15 May 1965 to 9 December 19651967: 6 January 1967 to 28 December 19671968: 18 February 1968 to 20 December 19681969: 15 March 1969 to 27 November 19691970: 9 January 1970 to 3 November 19701971: 29 March 1971 to 20 November 19711972: 8 April 1972 to 16 November 19721973: 26 February 1973 to 21 November 19731974: 17 March 1974 to 2 December 19741975: 24 May 1975 to 15 August 19751976: 25 January 1976 to 6 December 19761977: 22 February 1977 to 25 December 19771978: 19 February 1978 to 16 December 19781979: 2 January 1979 to 13 December 19791980: 9 April 1980 to 6 December 19801981: 6 January 1981 to 7 November 19811982: 8 January 1982 to 10 October 19821983: 22 March 1983 to 12 November 19831984: 21 April 1984 to 13 December 19841985: 14 February 1985 to 30 November 19851986: 18 January 1986 to 12 October 19861987: 27 April 1987 to 27 September 19871989: 1 March 1989 to 16 December 19891990: 26 April 1990 to 22 November 19901991: 2 February 1991 to 27 December 19911992: 19 February 1992 to 16 November 19922025: 9 January 2025 to 8 April 202519361943195019571964197219791986JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Pacelma meeting 10 mm (0.39 in).
First to last qualifying date each year at Pacelma
YearFirst dateLast date
19361936-06-241936-10-10
19371937-05-011937-08-26
19381938-04-301938-11-09
19391939-05-281939-10-03
19401940-03-311940-10-26
19411941-04-251941-10-28
19421942-05-021942-10-19
19431943-04-021943-11-14
19441944-04-201944-11-23
19451945-05-131945-10-12
19461946-02-241946-09-26
19471947-05-021947-11-27
19481948-05-031948-11-09
19491949-06-221949-12-01
19501950-03-151950-10-04
19511951-04-191951-08-29
19521952-04-201952-11-08
19531953-05-301953-12-02
19541954-04-141954-12-26
19551955-01-111955-12-18
19561956-01-021956-12-14
19571957-02-101957-12-01
19581958-04-251958-10-26
19591959-06-161959-09-29
19601960-01-141960-10-28
19611961-06-151961-10-15
19621962-01-031962-12-16
19631963-04-261963-11-21
19641964-02-211964-12-20
19651965-05-151965-12-09
19671967-01-061967-12-28
19681968-02-181968-12-20
19691969-03-151969-11-27
19701970-01-091970-11-03
19711971-03-291971-11-20
19721972-04-081972-11-16
19731973-02-261973-11-21
19741974-03-171974-12-02
19751975-05-241975-08-15
19761976-01-251976-12-06
19771977-02-221977-12-25
19781978-02-191978-12-16
19791979-01-021979-12-13
19801980-04-091980-12-06
19811981-01-061981-11-07
19821982-01-081982-10-10
19831983-03-221983-11-12
19841984-04-211984-12-13
19851985-02-141985-11-30
19861986-01-181986-10-12
19871987-04-271987-09-27
19891989-03-011989-12-16
19901990-04-261990-11-22
19911991-02-021991-12-27
19921992-02-191992-11-16
20252025-01-092025-04-08

Every Fixed Threshold

Fixed thresholds at Pacelma
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max10n/a31
0 C (32 F): Frost days (min10n/a57
-10 C (14 F): Days with min10n/a17
10 mm (0.39 in): Days with 10 mm or more rain562219803
25 mm (0.98 in): Days with 25 mm or more rain34419511
50 mm (1.97 in): Days with 50 mm or more rain3119391

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2025.

Download the Data

  • Data for Pacelma 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).