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Data as of 2025-12-31
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Built 2026-10-17 (17 October 2026)

Lonerock Threshold Days by Year

12 fixed thresholds counted per year at Lonerock (USC00355014): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lonerock Thresholds

  • Lonerock: days with 10 mm (0.39 in) or more of precipitation in 7 years, most in 1900 with 12.
  • Lonerock: days with a maximum temperature at or above 30 C (86 F) in 5 years, most in 1905 with 33.
  • Lonerock: days with a maximum temperature at or above 35 C (95 F) in 5 years, most in 1905 with 7.
  • Lonerock: days with a maximum temperature at or above 90 F (32.2 C) in 5 years, most in 1904 with 19.
  • 12 fixed thresholds have at least one qualifying day at Lonerock.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Lonerock Days per year at Lonerock with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1905. 0102030401899: 231900: 141903: 161904: 321905: 3318991900190319041905
Days per year at Lonerock with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1905.
Days at or above 30 C (86 F) per year at Lonerock
YearDaysDecade average
18992323
19001423.8
19031623.8
19043223.8
19053323.8
First to last qualifying date each year at Lonerock For each year, a bar from the first to the last day at Lonerock meeting 30 C (86 F). 1899: 16 June 1899 to 26 September 18991900: 20 June 1900 to 1 August 19001903: 30 May 1903 to 27 August 19031904: 27 June 1904 to 1 October 19041905: 5 July 1905 to 24 September 190518991900190319041905JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lonerock meeting 30 C (86 F).
First to last qualifying date each year at Lonerock
YearFirst dateLast date
18991899-06-161899-09-26
19001900-06-201900-08-01
19031903-05-301903-08-27
19041904-06-271904-10-01
19051905-07-051905-09-24

Every Fixed Threshold

Fixed thresholds at Lonerock
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days533190533
35 C (95 F): Days5719057
90 F (32.2 C): Days519190419
100 F (37.8 C): Days2219052
0 C (32 F): Ice days (max519190519
0 C (32 F): Frost days (min52161900167
-10 C (14 F): Days with min525189916
-20 C (-4 F): Days with min2518992
20 C (68 F): Tropical nights (min1118991
10 mm (0.39 in): Days with 10 mm or more rain71219009
25 mm (0.98 in): Days with 25 mm or more rain2118991
10 cm (3.9 in): Days with 10 cm or more snowfall1719377

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

  • Data for Lonerock 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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