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

Le Roy Threshold Days by Year

16 fixed thresholds counted per year at Le Roy (USC00364972): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Le Roy Thresholds

  • Le Roy: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1945 with 44.
  • Le Roy: days with 25 mm (0.98 in) or more of precipitation in 72 years, most in 1983 with 15.
  • Le Roy: days with 50 mm (1.97 in) or more of precipitation in 43 years, most in 1994 with 5.
  • Le Roy: days with 10 cm (3.9 in) or more of snowfall in 36 years, most in 1958 with 8.
  • 16 fixed thresholds have at least one qualifying day at Le Roy.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Le Roy Days per year at Le Roy with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 1900. 0102030401893: 131894: 221895: 241896: 251897: 111898: 281899: 271900: 381901: 261902: 101903: 51904: 71905: 51906: 71907: 61908: 231909: 131910: 71911: 261912: 111913: 191914: 161915: 71916: 2218931896189919021905190819111914
Days per year at Le Roy with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 1900.
Days at or above 30 C (86 F) per year at Le Roy
YearDaysDecade average
18931321.4
18942221.4
18952421.4
18962521.4
18971121.4
18982821.4
18992721.4
19003814
19012614
19021014
1903514
1904714
1905514
1906714
1907614
19082314
19091314
1910715.4
19112615.4
19121115.4
19131915.4
19141615.4
1915715.4
19162215.4
First to last qualifying date each year at Le Roy For each year, a bar from the first to the last day at Le Roy meeting 30 C (86 F). 1893: 5 June 1893 to 11 August 18931894: 22 June 1894 to 5 September 18941895: 5 May 1895 to 22 September 18951896: 18 April 1896 to 12 September 18961897: 3 July 1897 to 16 September 18971898: 8 June 1898 to 4 September 18981899: 1 May 1899 to 3 September 18991900: 13 May 1900 to 26 September 19001901: 13 June 1901 to 22 August 19011902: 22 April 1902 to 1 September 19021903: 1 July 1903 to 25 August 19031904: 25 May 1904 to 1 August 19041905: 19 June 1905 to 19 July 19051906: 18 May 1906 to 19 September 19061907: 14 May 1907 to 20 August 19071908: 19 June 1908 to 26 September 19081909: 21 June 1909 to 14 September 19091910: 22 June 1910 to 4 August 19101911: 11 May 1911 to 17 August 19111912: 29 June 1912 to 10 September 19121913: 3 May 1913 to 4 September 19131914: 26 May 1914 to 23 September 19141915: 25 April 1915 to 16 September 19151916: 7 July 1916 to 22 August 191618931896189919021905190819111914JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Le Roy meeting 30 C (86 F).
First to last qualifying date each year at Le Roy
YearFirst dateLast date
18931893-06-051893-08-11
18941894-06-221894-09-05
18951895-05-051895-09-22
18961896-04-181896-09-12
18971897-07-031897-09-16
18981898-06-081898-09-04
18991899-05-011899-09-03
19001900-05-131900-09-26
19011901-06-131901-08-22
19021902-04-221902-09-01
19031903-07-011903-08-25
19041904-05-251904-08-01
19051905-06-191905-07-19
19061906-05-181906-09-19
19071907-05-141907-08-20
19081908-06-191908-09-26
19091909-06-211909-09-14
19101910-06-221910-08-04
19111911-05-111911-08-17
19121912-06-291912-09-10
19131913-05-031913-09-04
19141914-05-261914-09-23
19151915-04-251915-09-16
19161916-07-071916-08-22

Every Fixed Threshold

Fixed thresholds at Le Roy
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2438190022
35 C (95 F): Days8619112
90 F (32.2 C): Days211719009
100 F (37.8 C): Days1119111
0 C (32 F): Ice days (max2482190464
0 C (32 F): Frost days (min241631904149
-10 C (14 F): Days with min2464190457
-20 C (-4 F): Days with min221419044
20 C (68 F): Tropical nights (min241619019
10 mm (0.39 in): Days with 10 mm or more rain7244194524
25 mm (0.98 in): Days with 25 mm or more rain721519838
50 mm (1.97 in): Days with 50 mm or more rain43519942
100 mm (3.94 in): Days with 100 mm or more rain3219721
10 cm (3.9 in): Days with 10 cm or more snowfall36819583
25 cm (9.8 in): Days with 25 cm or more snowfall10219932
50 cm (19.7 in): Days with 50 cm or more snowfall2119141

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

  • Data for Le Roy 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).