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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Tonopah Threshold Days by Year

13 fixed thresholds counted per year at Tonopah (USC00028641): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tonopah Thresholds

  • Tonopah: days with 10 mm (0.39 in) or more of precipitation in 16 years, most in 1952 with 10.
  • Tonopah: nights with a minimum temperature at or below 0 C (32 F) in 14 years, most in 1952 with 59.
  • Tonopah: nights with a minimum temperature at or above 20 C (68 F) in 14 years, most in 2009 with 110.
  • Tonopah: nights with a minimum temperature at or above 25 C (77 F) in 14 years, most in 2009 with 55.
  • 13 fixed thresholds have at least one qualifying day at Tonopah.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at Tonopah Days per year at Tonopah with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 204 in 2009. 01002003001952: 1711958: 1891962: 1901982: 1771985: 1711986: 1891988: 1961989: 1991991: 1831992: 1872008: 1822009: 204195219621985198819912008
Days per year at Tonopah with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 204 in 2009.
Days at or above 30 C (86 F) per year at Tonopah
YearDaysDecade average
1952171180
1958189180
1962190190
1982177186.4
1985171186.4
1986189186.4
1988196186.4
1989199186.4
1991183185
1992187185
2008182193
2009204193
First to last qualifying date each year at Tonopah For each year, a bar from the first to the last day at Tonopah meeting 30 C (86 F). 1952: 1 April 1952 to 14 October 19521958: 15 April 1958 to 8 November 19581962: 26 March 1962 to 12 November 19621982: 10 April 1982 to 25 October 19821985: 2 April 1985 to 4 November 19851986: 24 February 1986 to 1 November 19861988: 20 March 1988 to 7 November 19881989: 25 February 1989 to 18 October 19891991: 3 April 1991 to 6 November 19911992: 8 April 1992 to 22 October 19922008: 13 March 2008 to 18 November 20082009: 2 March 2009 to 11 November 2009195219621985198819912008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Tonopah meeting 30 C (86 F).
First to last qualifying date each year at Tonopah
YearFirst dateLast date
19521952-04-011952-10-14
19581958-04-151958-11-08
19621962-03-261962-11-12
19821982-04-101982-10-25
19851985-04-021985-11-04
19861986-02-241986-11-01
19881988-03-201988-11-07
19891989-02-251989-10-18
19911991-04-031991-11-06
19921992-04-081992-10-22
20082008-03-132008-11-18
20092009-03-022009-11-11

Every Fixed Threshold

Fixed thresholds at Tonopah
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days122042009204
35 C (95 F): Days121561989148
40 C (104 F): Days12103195894
45 C (113 F): Days1016198516
90 F (32.2 C): Days121771989176
100 F (37.8 C): Days121242009124
110 F (43.3 C): Days1236200936
0 C (32 F): Frost days (min1459195217
20 C (68 F): Tropical nights (min141102009110
25 C (77 F): Days with min1455200955
10 mm (0.39 in): Days with 10 mm or more rain161019523
25 mm (0.98 in): Days with 25 mm or more rain9219622
50 mm (1.97 in): Days with 50 mm or more rain1119621

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Tonopah 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).