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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Salem Threshold Days by Year

5 fixed thresholds counted per year at Salem (USC00467883): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Salem Thresholds

  • Salem: days with 10 mm (0.39 in) or more of precipitation in 16 years, most in 1951 with 51.
  • Salem: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1944 with 13.
  • Salem: days with 50 mm (1.97 in) or more of precipitation in 10 years, most in 1951 with 3.
  • Salem: days with 10 cm (3.9 in) or more of snowfall in 1 years, most in 1951 with 1.
  • 5 fixed thresholds have at least one qualifying day at Salem.
16 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Salem Days per year at Salem with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1951. 02040601876: 341938: 291939: 451940: 421941: 351942: 441943: 381944: 491945: 491946: 431947: 371948: 531949: 271950: 451951: 511952: 3918761939194119431945194719491951
Days per year at Salem with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1951.
Days with 10 mm (0.39 in) or more of precipitation per year at Salem
YearDaysDecade average
18763434
19382937
19394537
19404241.7
19413541.7
19424441.7
19433841.7
19444941.7
19454941.7
19464341.7
19473741.7
19485341.7
19492741.7
19504545
19515145
19523945
First to last qualifying date each year at Salem For each year, a bar from the first to the last day at Salem meeting 10 mm (0.39 in). 1876: 16 January 1876 to 27 November 18761938: 1 January 1938 to 26 December 19381939: 13 January 1939 to 20 December 19391940: 14 January 1940 to 29 December 19401941: 16 January 1941 to 13 December 19411942: 1 January 1942 to 30 December 19421943: 17 January 1943 to 26 December 19431944: 3 January 1944 to 30 December 19441945: 1 January 1945 to 25 December 19451946: 7 January 1946 to 29 December 19461947: 1 January 1947 to 8 December 19471948: 1 January 1948 to 29 December 19481949: 4 January 1949 to 26 December 19491950: 3 January 1950 to 7 December 19501951: 3 January 1951 to 30 December 19511952: 2 January 1952 to 31 December 195218761939194119431945194719491951JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Salem meeting 10 mm (0.39 in).
First to last qualifying date each year at Salem
YearFirst dateLast date
18761876-01-161876-11-27
19381938-01-011938-12-26
19391939-01-131939-12-20
19401940-01-141940-12-29
19411941-01-161941-12-13
19421942-01-011942-12-30
19431943-01-171943-12-26
19441944-01-031944-12-30
19451945-01-011945-12-25
19461946-01-071946-12-29
19471947-01-011947-12-08
19481948-01-011948-12-29
19491949-01-041949-12-26
19501950-01-031950-12-07
19511951-01-031951-12-30
19521952-01-021952-12-31

Every Fixed Threshold

Fixed thresholds at Salem
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1651195139
25 mm (0.98 in): Days with 25 mm or more rain161319448
50 mm (1.97 in): Days with 50 mm or more rain10319513
100 mm (3.94 in): Days with 100 mm or more rain10n/a1
10 cm (3.9 in): Days with 10 cm or more snowfall1119511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1876.

Download the Data

  • Data for Salem 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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