Built 2026-10-19 (19 October 2026)

Bear River Refuge Threshold Days by Year (USC00420506)

16 fixed thresholds counted per year at Bear River Refuge (USC00420506): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bear River Refuge Thresholds

  • Bear River Refuge: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1982 with 20.
  • Bear River Refuge: days with a maximum temperature at or above 30 C (86 F) in 38 years, most in 1958 with 97.
  • Bear River Refuge: days with a maximum temperature at or above 35 C (95 F) in 38 years, most in 1961 with 36.
  • Bear River Refuge: days with a maximum temperature at or above 90 F (32.2 C) in 38 years, most in 1966 with 72.
  • 16 fixed thresholds have at least one qualifying day at Bear River Refuge.
38 years with a qualifying day
Days at or above 30 C (86 F) per year at Bear River Refuge Days per year at Bear River Refuge with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 97 in 1958. 02550751001939: 681941: 511942: 711943: 721944: 721945: 631946: 731947: 461949: 731951: 461952: 651953: 831954: 741955: 731958: 971959: 791960: 861961: 861962: 761963: 711964: 701965: 491966: 941967: 731970: 741971: 651972: 601973: 691974: 851975: 511976: 571977: 761978: 641979: 801980: 621981: 861982: 641983: 501939194419491954196019641970197419781982
Days per year at Bear River Refuge with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 97 in 1958.
Days at or above 30 C (86 F) per year at Bear River Refuge
YearDaysDecade average
19396868
19415165.1
19427165.1
19437265.1
19447265.1
19456365.1
19467365.1
19474665.1
19497365.1
19514673.9
19526573.9
19538373.9
19547473.9
19557373.9
19589773.9
19597973.9
19608675.6
19618675.6
19627675.6
19637175.6
19647075.6
19654975.6
19669475.6
19677375.6
19707468.1
19716568.1
19726068.1
19736968.1
19748568.1
19755168.1
19765768.1
19777668.1
19786468.1
19798068.1
19806265.5
19818665.5
19826465.5
19835065.5
First to last qualifying date each year at Bear River Refuge For each year, a bar from the first to the last day at Bear River Refuge meeting 30 C (86 F). 1939: 11 May 1939 to 21 September 19391941: 12 May 1941 to 6 September 19411942: 22 May 1942 to 8 September 19421943: 23 May 1943 to 24 September 19431944: 24 June 1944 to 21 September 19441945: 20 June 1945 to 16 September 19451946: 3 June 1946 to 15 September 19461947: 3 May 1947 to 7 September 19471949: 26 May 1949 to 27 September 19491951: 27 May 1951 to 15 September 19511952: 5 June 1952 to 9 September 19521953: 10 June 1953 to 27 September 19531954: 8 May 1954 to 22 September 19541955: 7 June 1955 to 15 September 19551958: 19 May 1958 to 22 September 19581959: 13 May 1959 to 13 September 19591960: 11 May 1960 to 27 September 19601961: 23 May 1961 to 7 September 19611962: 10 June 1962 to 20 September 19621963: 27 June 1963 to 13 September 19631964: 16 May 1964 to 27 September 19641965: 12 June 1965 to 11 September 19651966: 4 May 1966 to 24 September 19661967: 22 May 1967 to 8 September 19671970: 18 May 1970 to 4 September 19701971: 16 June 1971 to 27 August 19711972: 30 May 1972 to 28 August 19721973: 8 June 1973 to 7 September 19731974: 27 May 1974 to 1 October 19741975: 30 June 1975 to 11 September 19751976: 20 June 1976 to 6 September 19761977: 1 June 1977 to 8 September 19771978: 13 June 1978 to 7 September 19781979: 11 June 1979 to 25 September 19791980: 9 June 1980 to 7 September 19801981: 5 June 1981 to 20 September 19811982: 13 June 1982 to 9 September 19821983: 27 May 1983 to 18 September 198319391945195219591964197119761981JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bear River Refuge meeting 30 C (86 F).
First to last qualifying date each year at Bear River Refuge
YearFirst dateLast date
19391939-05-111939-09-21
19411941-05-121941-09-06
19421942-05-221942-09-08
19431943-05-231943-09-24
19441944-06-241944-09-21
19451945-06-201945-09-16
19461946-06-031946-09-15
19471947-05-031947-09-07
19491949-05-261949-09-27
19511951-05-271951-09-15
19521952-06-051952-09-09
19531953-06-101953-09-27
19541954-05-081954-09-22
19551955-06-071955-09-15
19581958-05-191958-09-22
19591959-05-131959-09-13
19601960-05-111960-09-27
19611961-05-231961-09-07
19621962-06-101962-09-20
19631963-06-271963-09-13
19641964-05-161964-09-27
19651965-06-121965-09-11
19661966-05-041966-09-24
19671967-05-221967-09-08
19701970-05-181970-09-04
19711971-06-161971-08-27
19721972-05-301972-08-28
19731973-06-081973-09-07
19741974-05-271974-10-01
19751975-06-301975-09-11
19761976-06-201976-09-06
19771977-06-011977-09-08
19781978-06-131978-09-07
19791979-06-111979-09-25
19801980-06-091980-09-07
19811981-06-051981-09-20
19821982-06-131982-09-09
19831983-05-271983-09-18

Every Fixed Threshold

Fixed thresholds at Bear River Refuge
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3897195850
35 C (95 F): Days383619613
40 C (104 F): Days1119601
90 F (32.2 C): Days3872196622
100 F (37.8 C): Days191219603
0 C (32 F): Ice days (max3849195517
0 C (32 F): Frost days (min381561961122
-10 C (14 F): Days with min3865194913
-20 C (-4 F): Days with min221819422
-30 C (-22 F): Days with min2319493
20 C (68 F): Tropical nights (min35919839
25 C (77 F): Days with min1119581
10 mm (0.39 in): Days with 10 mm or more rain4320198219
25 mm (0.98 in): Days with 25 mm or more rain27319432
50 mm (1.97 in): Days with 50 mm or more rain3119541
10 cm (3.9 in): Days with 10 cm or more snowfall21419421

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for Bear River Refuge 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).