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Built 2026-10-19 (19 October 2026)

Granite 4 WSW Threshold Days by Year (USC00353430)

14 fixed thresholds counted per year at Granite 4 WSW (USC00353430): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Granite 4 WSW Thresholds

  • Granite 4 WSW: nights with a minimum temperature at or below 0 C (32 F) in 23 years, most in 1965 with 259.
  • Granite 4 WSW: nights with a minimum temperature at or below -10 C (14 F) in 23 years, most in 1952 with 94.
  • Granite 4 WSW: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1958 with 27.
  • Granite 4 WSW: days with a maximum temperature at or above 30 C (86 F) in 22 years, most in 1908 with 26.
  • 14 fixed thresholds have at least one qualifying day at Granite 4 WSW.
22 years with a qualifying day
Days at or above 30 C (86 F) per year at Granite 4 WSW Days per year at Granite 4 WSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 26 in 1908. 01020301907: 91908: 261909: 191948: 11949: 81950: 121951: 121952: 51953: 91954: 41955: 161956: 141957: 21958: 91959: 141960: 191961: 231962: 71963: 11964: 41965: 61966: 719071948195119541957196019631966
Days per year at Granite 4 WSW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 26 in 1908.
Days at or above 30 C (86 F) per year at Granite 4 WSW
YearDaysDecade average
1907918
19082618
19091918
194814.5
194984.5
1950129.7
1951129.7
195259.7
195399.7
195449.7
1955169.7
1956149.7
195729.7
195899.7
1959149.7
1960199.6
1961239.6
196279.6
196319.6
196449.6
196569.6
196679.6
First to last qualifying date each year at Granite 4 WSW For each year, a bar from the first to the last day at Granite 4 WSW meeting 30 C (86 F). 1907: 11 July 1907 to 10 September 19071908: 7 July 1908 to 6 September 19081909: 30 June 1909 to 17 September 19091948: 29 June 1948 to 29 June 19481949: 10 July 1949 to 1 September 19491950: 25 July 1950 to 4 September 19501951: 16 July 1951 to 19 August 19511952: 10 July 1952 to 31 July 19521953: 9 July 1953 to 13 September 19531954: 5 July 1954 to 2 August 19541955: 22 June 1955 to 7 September 19551956: 9 July 1956 to 18 September 19561957: 11 July 1957 to 7 September 19571958: 12 July 1958 to 8 September 19581959: 20 June 1959 to 2 August 19591960: 7 July 1960 to 19 August 19601961: 16 June 1961 to 23 August 19611962: 22 July 1962 to 17 August 19621963: 4 August 1963 to 4 August 19631964: 12 July 1964 to 12 August 19641965: 15 July 1965 to 9 August 19651966: 30 July 1966 to 5 September 196619071948195119541957196019631966JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Granite 4 WSW meeting 30 C (86 F).
First to last qualifying date each year at Granite 4 WSW
YearFirst dateLast date
19071907-07-111907-09-10
19081908-07-071908-09-06
19091909-06-301909-09-17
19481948-06-291948-06-29
19491949-07-101949-09-01
19501950-07-251950-09-04
19511951-07-161951-08-19
19521952-07-101952-07-31
19531953-07-091953-09-13
19541954-07-051954-08-02
19551955-06-221955-09-07
19561956-07-091956-09-18
19571957-07-111957-09-07
19581958-07-121958-09-08
19591959-06-201959-08-02
19601960-07-071960-08-19
19611961-06-161961-08-23
19621962-07-221962-08-17
19631963-08-041963-08-04
19641964-07-121964-08-12
19651965-07-151965-08-09
19661966-07-301966-09-05

Every Fixed Threshold

Fixed thresholds at Granite 4 WSW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days222619087
35 C (95 F): Days4319613
90 F (32.2 C): Days161719082
0 C (32 F): Ice days (max2277195248
0 C (32 F): Frost days (min232591965245
-10 C (14 F): Days with min2394195256
-20 C (-4 F): Days with min222019485
-30 C (-22 F): Days with min7319621
10 mm (0.39 in): Days with 10 mm or more rain2327195818
25 mm (0.98 in): Days with 25 mm or more rain19419091
50 mm (1.97 in): Days with 50 mm or more rain1119621
10 cm (3.9 in): Days with 10 cm or more snowfall1922196413
25 cm (9.8 in): Days with 25 cm or more snowfall8219622
50 cm (19.7 in): Days with 50 cm or more snowfall1119491

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

  • Data for Granite 4 WSW 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).