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Built 2026-10-18 (18 October 2026)

Bethlehem Threshold Days by Year

6 fixed thresholds counted per year at Bethlehem (USC00360629): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bethlehem Thresholds

  • Bethlehem: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1952 with 51.
  • Bethlehem: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1951 with 20.
  • Bethlehem: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 1979 with 6.
  • Bethlehem: days with 10 cm (3.9 in) or more of snowfall in 18 years, most in 1966 with 6.
  • 6 fixed thresholds have at least one qualifying day at Bethlehem.
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bethlehem Days per year at Bethlehem with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1952. 02040601943: 311944: 331945: 431948: 371949: 311950: 351951: 421952: 511953: 501954: 341955: 311956: 381957: 281958: 371959: 431960: 401961: 321962: 331963: 251964: 291965: 191966: 301967: 361968: 311970: 291976: 371977: 411978: 421979: 431980: 251943194819511954195719601963196619701978
Days per year at Bethlehem with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 1952.
Days with 10 mm (0.39 in) or more of precipitation per year at Bethlehem
YearDaysDecade average
19433135
19443335
19454335
19483735
19493135
19503538.9
19514238.9
19525138.9
19535038.9
19543438.9
19553138.9
19563838.9
19572838.9
19583738.9
19594338.9
19604030.6
19613230.6
19623330.6
19632530.6
19642930.6
19651930.6
19663030.6
19673630.6
19683130.6
19702938.4
19763738.4
19774138.4
19784238.4
19794338.4
19802525
First to last qualifying date each year at Bethlehem For each year, a bar from the first to the last day at Bethlehem meeting 10 mm (0.39 in). 1943: 19 January 1943 to 27 December 19431944: 4 January 1944 to 28 December 19441945: 2 January 1945 to 26 December 19451948: 2 January 1948 to 31 December 19481949: 6 January 1949 to 27 December 19491950: 11 January 1950 to 16 December 19501951: 15 January 1951 to 21 December 19511952: 18 January 1952 to 22 December 19521953: 9 January 1953 to 14 December 19531954: 11 January 1954 to 30 December 19541955: 7 February 1955 to 17 November 19551956: 10 January 1956 to 23 December 19561957: 2 February 1957 to 27 December 19571958: 15 January 1958 to 4 December 19581959: 2 January 1959 to 29 December 19591960: 3 January 1960 to 21 December 19601961: 1 January 1961 to 24 December 19611962: 7 January 1962 to 7 December 19621963: 14 January 1963 to 24 December 19631964: 2 January 1964 to 12 December 19641965: 8 February 1965 to 26 December 19651966: 3 January 1966 to 29 December 19661967: 28 January 1967 to 29 December 19671968: 3 February 1968 to 29 December 19681970: 3 February 1970 to 17 December 19701976: 1 January 1976 to 25 December 19761977: 15 January 1977 to 30 November 19771978: 9 January 1978 to 25 December 19781979: 1 January 1979 to 25 December 19791980: 9 March 1980 to 28 November 198019431949195319571961196519701979JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bethlehem meeting 10 mm (0.39 in).
First to last qualifying date each year at Bethlehem
YearFirst dateLast date
19431943-01-191943-12-27
19441944-01-041944-12-28
19451945-01-021945-12-26
19481948-01-021948-12-31
19491949-01-061949-12-27
19501950-01-111950-12-16
19511951-01-151951-12-21
19521952-01-181952-12-22
19531953-01-091953-12-14
19541954-01-111954-12-30
19551955-02-071955-11-17
19561956-01-101956-12-23
19571957-02-021957-12-27
19581958-01-151958-12-04
19591959-01-021959-12-29
19601960-01-031960-12-21
19611961-01-011961-12-24
19621962-01-071962-12-07
19631963-01-141963-12-24
19641964-01-021964-12-12
19651965-02-081965-12-26
19661966-01-031966-12-29
19671967-01-281967-12-29
19681968-02-031968-12-29
19701970-02-031970-12-17
19761976-01-011976-12-25
19771977-01-151977-11-30
19781978-01-091978-12-25
19791979-01-011979-12-25
19801980-03-091980-11-28

Every Fixed Threshold

Fixed thresholds at Bethlehem
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3051195225
25 mm (0.98 in): Days with 25 mm or more rain302019515
50 mm (1.97 in): Days with 50 mm or more rain25619796
100 mm (3.94 in): Days with 100 mm or more rain1119551
10 cm (3.9 in): Days with 10 cm or more snowfall18619661
25 cm (9.8 in): Days with 25 cm or more snowfall7219601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

  • Data for Bethlehem 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).