Tonopah AP Weather Records (USW00023153)
Record envelope, standing records and threshold days for Tonopah AP (USW00023153), Nevada, United States, with 73 years of record.
Key Facts for Tonopah AP
- Tonopah AP (USW00023153) is a weather station in Nevada, United States at 38.05 latitude and -117.09 longitude, 1,646 m (5,399 ft) above sea level.
- The station reports from 1954 to 2026, 73 years of record.
- 1,464 records set at Tonopah AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Tonopah AP set a daily record high minimum temperature of 16.7 C (62.1 F) on 11 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Nevada, United States, 38.05 latitude, -117.09 longitude.
- Elevation: 1,646 m (5,399 ft).
- Period of record: 1954 to 2026, 73 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
17 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 19.4 C (66.9 F) | -26.1 C (-15.0 F) | 16.1 C (61.0 F) | -7.8 C (18.0 F) |
| Feb | 23.9 C (75.0 F) | -22.8 C (-9.0 F) | 21.1 C (70.0 F) | -11.1 C (12.0 F) |
| Mar | 28.9 C (84.0 F) | -15.6 C (3.9 F) | 28.9 C (84.0 F) | -2.8 C (27.0 F) |
| Apr | 31.1 C (88.0 F) | -12.8 C (9.0 F) | 23.9 C (75.0 F) | -5.0 C (23.0 F) |
| May | 35.6 C (96.1 F) | -7.2 C (19.0 F) | 31.7 C (89.1 F) | 1.1 C (34.0 F) |
| Jun | 39.4 C (102.9 F) | -2.8 C (27.0 F) | 36.1 C (97.0 F) | 5.6 C (42.1 F) |
| Jul | 40.6 C (105.1 F) | 4.4 C (39.9 F) | 37.2 C (99.0 F) | 11.1 C (52.0 F) |
| Aug | 39.4 C (102.9 F) | 2.8 C (37.0 F) | 38.3 C (100.9 F) | 11.1 C (52.0 F) |
| Sep | 38.3 C (100.9 F) | -4.4 C (24.1 F) | 33.9 C (93.0 F) | 5.0 C (41.0 F) |
| Oct | 32.2 C (90.0 F) | -12.1 C (10.2 F) | 30.0 C (86.0 F) | 1.7 C (35.1 F) |
| Nov | 25.0 C (77.0 F) | -16.0 C (3.2 F) | n/a | n/a |
| Dec | 21.1 C (70.0 F) | -25.0 C (-13.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1954 | 11 |
| 1955 | 32 |
| 1956 | 23 |
| 1957 | 22 |
| 1958 | 13 |
| 1959 | 22 |
| 1960 | 19 |
| 1961 | 14 |
| 1962 | 32 |
| 1963 | 22 |
| 1964 | 35 |
| 1965 | 25 |
| 1966 | 19 |
| 1967 | 19 |
| 1968 | 16 |
| 1969 | 11 |
| 1970 | 17 |
| 1971 | 48 |
| 1972 | 27 |
| 1973 | 12 |
| 1974 | 18 |
| 1975 | 24 |
| 1976 | 15 |
| 1977 | 18 |
| 1978 | 29 |
| 1979 | 19 |
| 1980 | 27 |
| 1981 | 13 |
| 1982 | 22 |
| 1983 | 16 |
| 1984 | 23 |
| 1985 | 33 |
| 1986 | 29 |
| 1987 | 29 |
| 1988 | 19 |
| 1989 | 35 |
| 1990 | 19 |
| 1991 | 21 |
| 1992 | 18 |
| 1993 | 8 |
| 1994 | 16 |
| 1995 | 27 |
| 1996 | 37 |
| 1997 | 12 |
| 1998 | 9 |
| 1999 | 12 |
| 2000 | 8 |
| 2001 | 14 |
| 2002 | 12 |
| 2003 | 21 |
| 2004 | 9 |
| 2005 | 9 |
| 2006 | 14 |
| 2007 | 10 |
| 2008 | 14 |
| 2009 | 16 |
| 2010 | 18 |
| 2011 | 20 |
| 2012 | 14 |
| 2013 | 32 |
| 2014 | 15 |
| 2015 | 25 |
| 2016 | 15 |
| 2017 | 32 |
| 2018 | 11 |
| 2019 | 19 |
| 2020 | 24 |
| 2021 | 27 |
| 2022 | 19 |
| 2023 | 11 |
| 2024 | 9 |
| 2025 | 33 |
| 2026 | 26 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1990-12-21 | Record low maximum temperature | Record low maximum temperature -11.1 C (12.0 F) |
| 2017-07-17 | Record high minimum temperature | Record high minimum temperature 23.9 C (75.0 F) |
| 2021-07-11 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
| 2021-07-11 | Record high minimum temperature | Record high minimum temperature 24.4 C (75.9 F) |
| 2023-08-20 | Record daily precipitation | Record daily precipitation 64.8 mm (2.6 in) |
Wettest Day of Each Month
Aug: 64.8 mm (2.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 17.0 mm (0.7 in) | 25 January 1995 |
| Feb | 38.6 mm (1.5 in) | 10 February 1968 |
| Mar | 23.1 mm (0.9 in) | 3 March 1983 |
| Apr | 24.9 mm (1.0 in) | 10 April 1975 |
| May | 23.6 mm (0.9 in) | 28 May 1990 |
| Jun | 24.4 mm (1.0 in) | 2 June 1999 |
| Jul | 33.0 mm (1.3 in) | 18 July 1985 |
| Aug | 64.8 mm (2.6 in) | 20 August 2023 |
| Sep | 38.4 mm (1.5 in) | 5 September 2025 |
| Oct | 40.4 mm (1.6 in) | 4 October 2015 |
| Nov | 29.7 mm (1.2 in) | 27 November 1981 |
| Dec | 24.9 mm (1.0 in) | 24 December 2025 |
Period of Record Coverage
1954 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1954 | 204 | 56% | No |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 361 | 99% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 363 | 99% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 361 | 99% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 361 | 99% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 285 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 September 2026 | Tonopah AP, US | daily high min (Provisional) | 16.7 C (62.1 F) | 0.6 C (1.1 F) | 12 years | 11 of 100 (Routine) |
| 9 August 2026 | Tonopah AP, US | daily high max (Tie) | 37.8 C (100.0 F) | tie | 60 years | 6 of 100 (Routine) |
| 8 August 2026 | Tonopah AP, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 32 years | 4 of 100 (Routine) |
| 7 August 2026 | Tonopah AP, US | daily high max (Tie) | 37.8 C (100.0 F) | tie | 53 years | 5 of 100 (Routine) |
| 5 August 2026 | Tonopah AP, US | daily high max (Tie) | 37.8 C (100.0 F) | tie | 48 years | 5 of 100 (Routine) |
| 27 July 2026 | Tonopah AP, US | daily high min (Tie) | 20.6 C (69.1 F) | tie | 12 years | 2 of 100 (Routine) |
| 25 July 2026 | Tonopah AP, US | daily high min (Tie) | 19.4 C (66.9 F) | tie | 61 years | 6 of 100 (Routine) |
| 20 July 2026 | Tonopah AP, US | daily high min | 21.1 C (70.0 F) | 1.7 C (3.1 F) | 56 years | 28 of 100 (Routine) |
| 16 July 2026 | Tonopah AP, US | daily high min (Tie) | 19.4 C (66.9 F) | tie | 8 years | 2 of 100 (Routine) |
| 28 June 2026 | Tonopah AP, US | daily low max | 20.6 C (69.1 F) | 2.2 C (4.0 F) | 56 years | 28 of 100 (Routine) |
| 27 April 2026 | Tonopah AP, US | daily rain | 12.7 mm (0.5 in) | 7.4 mm (0.29 in) | 0 years | 20 of 100 (Routine) |
| 31 March 2026 | Tonopah AP, US | daily high min (Tie) | 5.6 C (42.1 F) | tie | 60 years | 6 of 100 (Routine) |
| 29 March 2026 | Tonopah AP, US | daily high max | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 56 years | 24 of 100 (Routine) |
| 28 March 2026 | Tonopah AP, US | daily high max | 25.6 C (78.1 F) | 1.2 C (2.2 F) | 40 years | 21 of 100 (Routine) |
| 28 March 2026 | Tonopah AP, US | daily high min (Tie) | 6.7 C (44.1 F) | tie | 24 years | 3 of 100 (Routine) |
| 26 March 2026 | Tonopah AP, US | daily high min | 8.3 C (46.9 F) | 2.2 C (4.0 F) | 4 years | 14 of 100 (Routine) |
| 25 March 2026 | Tonopah AP, US | daily high min | 8.3 C (46.9 F) | 1.6 C (2.9 F) | 32 years | 20 of 100 (Routine) |
| 25 March 2026 | Tonopah AP, US | daily high max | 28.3 C (82.9 F) | 2.2 C (4.0 F) | 4 years | 12 of 100 (Routine) |
| 24 March 2026 | Tonopah AP, US | daily high max | 27.8 C (82.0 F) | 3.9 C (7.0 F) | 65 years | 33 of 100 (Routine) |
| 23 March 2026 | Tonopah AP, US | daily high max | 26.7 C (80.1 F) | 2.3 C (4.1 F) | 28 years | 19 of 100 (Routine) |
Climate Trend
71 complete years, 1955 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1955 | 9.3 C | -1.83 C |
| 1956 | 10.7 C | -0.41 C |
| 1957 | 10.3 C | -0.82 C |
| 1958 | 11.4 C | +0.30 C |
| 1959 | 11.5 C | +0.35 C |
| 1960 | 11.4 C | +0.31 C |
| 1961 | 10.7 C | -0.44 C |
| 1962 | 10.4 C | -0.74 C |
| 1963 | 10.4 C | -0.72 C |
| 1964 | 9.8 C | -1.29 C |
| 1965 | 10.1 C | -1.00 C |
| 1966 | 11.0 C | -0.12 C |
| 1967 | 10.5 C | -0.60 C |
| 1968 | 10.4 C | -0.70 C |
| 1969 | 10.7 C | -0.38 C |
| 1970 | 10.5 C | -0.64 C |
| 1971 | 10.1 C | -1.06 C |
| 1972 | 10.7 C | -0.44 C |
| 1973 | 10.3 C | -0.82 C |
| 1974 | 10.7 C | -0.45 C |
| 1975 | 9.6 C | -1.48 C |
| 1976 | 10.5 C | -0.58 C |
| 1977 | 10.9 C | -0.20 C |
| 1978 | 10.2 C | -0.92 C |
| 1979 | 10.7 C | -0.45 C |
| 1980 | 11.2 C | +0.05 C |
| 1981 | 11.7 C | +0.60 C |
| 1982 | 9.9 C | -1.21 C |
| 1983 | 10.4 C | -0.69 C |
| 1984 | 10.6 C | -0.56 C |
| 1985 | 10.4 C | -0.71 C |
| 1986 | 11.8 C | +0.64 C |
| 1987 | 10.9 C | -0.24 C |
| 1988 | 11.4 C | +0.29 C |
| 1989 | 11.3 C | +0.15 C |
| 1990 | 11.1 C | 0.00 C |
| 1991 | 11.0 C | -0.09 C |
| 1992 | 11.6 C | +0.51 C |
| 1993 | 10.8 C | -0.30 C |
| 1994 | 11.3 C | +0.18 C |
| 1995 | 11.5 C | +0.38 C |
| 1996 | 12.0 C | +0.87 C |
| 1997 | 11.2 C | +0.04 C |
| 1998 | 10.0 C | -1.11 C |
| 1999 | 10.9 C | -0.22 C |
| 2000 | 11.6 C | +0.52 C |
| 2001 | 11.4 C | +0.26 C |
| 2002 | 11.7 C | +0.54 C |
| 2003 | 12.0 C | +0.84 C |
| 2004 | 11.4 C | +0.23 C |
| 2005 | 11.2 C | +0.10 C |
| 2006 | 11.0 C | -0.11 C |
| 2007 | 11.6 C | +0.52 C |
| 2008 | 11.1 C | -0.01 C |
| 2009 | 11.1 C | +0.02 C |
| 2010 | 10.8 C | -0.36 C |
| 2011 | 10.7 C | -0.45 C |
| 2012 | 12.3 C | +1.17 C |
| 2013 | 11.7 C | +0.60 C |
| 2014 | 12.9 C | +1.76 C |
| 2015 | 12.8 C | +1.69 C |
| 2016 | 12.0 C | +0.91 C |
| 2017 | 12.5 C | +1.42 C |
| 2018 | 12.5 C | +1.41 C |
| 2019 | 11.1 C | +0.01 C |
| 2020 | 12.4 C | +1.28 C |
| 2021 | 12.3 C | +1.13 C |
| 2022 | 12.0 C | +0.88 C |
| 2023 | 11.0 C | -0.17 C |
| 2024 | 12.3 C | +1.14 C |
| 2025 | 12.5 C | +1.35 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.3) per decade over 1955 to 2025. In Fahrenheit: 0.5 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 71 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.3 to 0.6) per decade | 1955 to 2025 | 71 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1955 to 2025 | 71 | Rise |
| Mean daily minimum | 0.3 C (0.3 to 0.4) per decade | 0.6 F (0.5 to 0.7) per decade | 1955 to 2025 | 71 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1954 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.6 C (105.1 F) | 2021 | 38.3 C (100.9 F) | 73 |
| Coldest night (TNn) | -26.1 C (-15.0 F) | 1962 | -17.2 C (1.0 F) | 73 |
| Wettest day (Rx1day) | 64.8 mm (2.6 in) | 2023 | 17.3 mm (0.7 in) | 73 |
| Wettest five days (Rx5day) | 87.9 mm (3.5 in) | 2023 | 26.0 mm (1.0 in) | 73 |
| Longest dry spell (CDD) | 135 days | 2022 | 76 days | 73 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1954 | 38.9 C (102.0 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 38.3 C (100.9 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 39.4 C (102.9 F) |
| 1960 | 40.0 C (104.0 F) |
| 1961 | 38.9 C (102.0 F) |
| 1962 | 36.1 C (97.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 37.8 C (100.0 F) |
| 1967 | 37.8 C (100.0 F) |
| 1968 | 36.7 C (98.1 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 39.4 C (102.9 F) |
| 1972 | 38.9 C (102.0 F) |
| 1973 | 37.2 C (99.0 F) |
| 1974 | 37.8 C (100.0 F) |
| 1975 | 37.2 C (99.0 F) |
| 1976 | 36.1 C (97.0 F) |
| 1977 | 38.9 C (102.0 F) |
| 1978 | 38.9 C (102.0 F) |
| 1979 | 38.3 C (100.9 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 37.8 C (100.0 F) |
| 1982 | 37.2 C (99.0 F) |
| 1983 | 36.1 C (97.0 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 38.9 C (102.0 F) |
| 1986 | 36.7 C (98.1 F) |
| 1987 | 37.2 C (99.0 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 38.9 C (102.0 F) |
| 1990 | 38.9 C (102.0 F) |
| 1991 | 37.8 C (100.0 F) |
| 1992 | 37.2 C (99.0 F) |
| 1993 | 38.9 C (102.0 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 39.4 C (102.9 F) |
| 1997 | 37.8 C (100.0 F) |
| 1998 | 39.4 C (102.9 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 38.9 C (102.0 F) |
| 2001 | 37.2 C (99.0 F) |
| 2002 | 39.4 C (102.9 F) |
| 2003 | 37.8 C (100.0 F) |
| 2004 | 36.7 C (98.1 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 38.9 C (102.0 F) |
| 2007 | 38.9 C (102.0 F) |
| 2008 | 36.7 C (98.1 F) |
| 2009 | 36.1 C (97.0 F) |
| 2010 | 38.3 C (100.9 F) |
| 2011 | 37.2 C (99.0 F) |
| 2012 | 38.3 C (100.9 F) |
| 2013 | 39.4 C (102.9 F) |
| 2014 | 38.3 C (100.9 F) |
| 2015 | 38.3 C (100.9 F) |
| 2016 | 40.0 C (104.0 F) |
| 2017 | 38.9 C (102.0 F) |
| 2018 | 37.8 C (100.0 F) |
| 2019 | 36.7 C (98.1 F) |
| 2020 | 39.4 C (102.9 F) |
| 2021 | 40.6 C (105.1 F) |
| 2022 | 38.3 C (100.9 F) |
| 2023 | 40.0 C (104.0 F) |
| 2024 | 40.0 C (104.0 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 38.3 C (100.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1954 | -13.9 C (7.0 F) |
| 1955 | -24.4 C (-11.9 F) |
| 1956 | -16.1 C (3.0 F) |
| 1957 | -23.3 C (-9.9 F) |
| 1958 | -14.4 C (6.1 F) |
| 1959 | -17.8 C (0.0 F) |
| 1960 | -17.8 C (0.0 F) |
| 1961 | -17.8 C (0.0 F) |
| 1962 | -26.1 C (-15.0 F) |
| 1963 | -21.7 C (-7.1 F) |
| 1964 | -17.8 C (0.0 F) |
| 1965 | -16.1 C (3.0 F) |
| 1966 | -14.4 C (6.1 F) |
| 1967 | -25.0 C (-13.0 F) |
| 1968 | -20.6 C (-5.1 F) |
| 1969 | -13.3 C (8.1 F) |
| 1970 | -19.4 C (-2.9 F) |
| 1971 | -22.2 C (-8.0 F) |
| 1972 | -21.1 C (-6.0 F) |
| 1973 | -16.7 C (1.9 F) |
| 1974 | -23.3 C (-9.9 F) |
| 1975 | -15.6 C (3.9 F) |
| 1976 | -14.4 C (6.1 F) |
| 1977 | -17.8 C (0.0 F) |
| 1978 | -18.3 C (-0.9 F) |
| 1979 | -18.9 C (-2.0 F) |
| 1980 | -12.2 C (10.0 F) |
| 1981 | -14.4 C (6.1 F) |
| 1982 | -17.2 C (1.0 F) |
| 1983 | -11.7 C (10.9 F) |
| 1984 | -22.8 C (-9.0 F) |
| 1985 | -20.0 C (-4.0 F) |
| 1986 | -11.7 C (10.9 F) |
| 1987 | -23.3 C (-9.9 F) |
| 1988 | -20.0 C (-4.0 F) |
| 1989 | -22.8 C (-9.0 F) |
| 1990 | -23.3 C (-9.9 F) |
| 1991 | -18.3 C (-0.9 F) |
| 1992 | -17.8 C (0.0 F) |
| 1993 | -18.9 C (-2.0 F) |
| 1994 | -15.0 C (5.0 F) |
| 1995 | -13.3 C (8.1 F) |
| 1996 | -16.7 C (1.9 F) |
| 1997 | -15.6 C (3.9 F) |
| 1998 | -16.7 C (1.9 F) |
| 1999 | -19.4 C (-2.9 F) |
| 2000 | -11.7 C (10.9 F) |
| 2001 | -19.4 C (-2.9 F) |
| 2002 | -15.0 C (5.0 F) |
| 2003 | -13.9 C (7.0 F) |
| 2004 | -16.1 C (3.0 F) |
| 2005 | -22.8 C (-9.0 F) |
| 2006 | -20.6 C (-5.1 F) |
| 2007 | -17.2 C (1.0 F) |
| 2008 | -18.3 C (-0.9 F) |
| 2009 | -18.3 C (-0.9 F) |
| 2010 | -15.0 C (5.0 F) |
| 2011 | -20.0 C (-4.0 F) |
| 2012 | -15.6 C (3.9 F) |
| 2013 | -18.9 C (-2.0 F) |
| 2014 | -11.0 C (12.2 F) |
| 2015 | -13.8 C (7.2 F) |
| 2016 | -21.0 C (-5.8 F) |
| 2017 | -16.0 C (3.2 F) |
| 2018 | -14.3 C (6.3 F) |
| 2019 | -16.0 C (3.2 F) |
| 2020 | -12.1 C (10.2 F) |
| 2021 | -18.2 C (-0.8 F) |
| 2022 | -15.5 C (4.1 F) |
| 2023 | -11.6 C (11.1 F) |
| 2024 | -12.7 C (9.1 F) |
| 2025 | -13.8 C (7.2 F) |
| 2026 | -11.1 C (12.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1954 | 11.9 mm (0.5 in) |
| 1955 | 27.9 mm (1.1 in) |
| 1956 | 16.3 mm (0.6 in) |
| 1957 | 18.8 mm (0.7 in) |
| 1958 | 19.1 mm (0.8 in) |
| 1959 | 22.4 mm (0.9 in) |
| 1960 | 25.4 mm (1.0 in) |
| 1961 | 12.4 mm (0.5 in) |
| 1962 | 23.9 mm (0.9 in) |
| 1963 | 17.0 mm (0.7 in) |
| 1964 | 10.7 mm (0.4 in) |
| 1965 | 24.4 mm (1.0 in) |
| 1966 | 16.5 mm (0.6 in) |
| 1967 | 18.3 mm (0.7 in) |
| 1968 | 38.6 mm (1.5 in) |
| 1969 | 21.6 mm (0.9 in) |
| 1970 | 9.7 mm (0.38 in) |
| 1971 | 10.2 mm (0.4 in) |
| 1972 | 17.3 mm (0.7 in) |
| 1973 | 10.9 mm (0.4 in) |
| 1974 | 13.5 mm (0.5 in) |
| 1975 | 24.9 mm (1.0 in) |
| 1976 | 26.2 mm (1.0 in) |
| 1977 | 41.1 mm (1.6 in) |
| 1978 | 26.2 mm (1.0 in) |
| 1979 | 28.2 mm (1.1 in) |
| 1980 | 15.7 mm (0.6 in) |
| 1981 | 29.7 mm (1.2 in) |
| 1982 | 32.3 mm (1.3 in) |
| 1983 | 23.1 mm (0.9 in) |
| 1984 | 19.6 mm (0.8 in) |
| 1985 | 33.0 mm (1.3 in) |
| 1986 | 9.7 mm (0.38 in) |
| 1987 | 15.5 mm (0.6 in) |
| 1988 | 18.5 mm (0.7 in) |
| 1989 | 8.6 mm (0.34 in) |
| 1990 | 23.6 mm (0.9 in) |
| 1991 | 18.3 mm (0.7 in) |
| 1992 | 12.7 mm (0.5 in) |
| 1993 | 24.6 mm (1.0 in) |
| 1994 | 12.4 mm (0.5 in) |
| 1995 | 17.0 mm (0.7 in) |
| 1996 | 12.2 mm (0.5 in) |
| 1997 | 13.7 mm (0.5 in) |
| 1998 | 20.8 mm (0.8 in) |
| 1999 | 24.4 mm (1.0 in) |
| 2000 | 32.8 mm (1.3 in) |
| 2001 | 10.9 mm (0.4 in) |
| 2002 | 7.6 mm (0.30 in) |
| 2003 | 13.5 mm (0.5 in) |
| 2004 | 10.7 mm (0.4 in) |
| 2005 | 9.4 mm (0.37 in) |
| 2006 | 12.7 mm (0.5 in) |
| 2007 | 11.4 mm (0.4 in) |
| 2008 | 15.5 mm (0.6 in) |
| 2009 | 11.7 mm (0.5 in) |
| 2010 | 11.2 mm (0.4 in) |
| 2011 | 12.2 mm (0.5 in) |
| 2012 | 21.1 mm (0.8 in) |
| 2013 | 33.0 mm (1.3 in) |
| 2014 | 21.6 mm (0.9 in) |
| 2015 | 40.4 mm (1.6 in) |
| 2016 | 29.0 mm (1.1 in) |
| 2017 | 10.9 mm (0.4 in) |
| 2018 | 15.0 mm (0.6 in) |
| 2019 | 20.6 mm (0.8 in) |
| 2020 | 8.6 mm (0.34 in) |
| 2021 | 17.0 mm (0.7 in) |
| 2022 | 27.7 mm (1.1 in) |
| 2023 | 64.8 mm (2.6 in) |
| 2024 | 13.7 mm (0.5 in) |
| 2025 | 38.4 mm (1.5 in) |
| 2026 | 12.7 mm (0.5 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1954 | 15.5 mm (0.6 in) |
| 1955 | 30.7 mm (1.2 in) |
| 1956 | 26.0 mm (1.0 in) |
| 1957 | 25.9 mm (1.0 in) |
| 1958 | 25.7 mm (1.0 in) |
| 1959 | 22.4 mm (0.9 in) |
| 1960 | 27.2 mm (1.1 in) |
| 1961 | 23.4 mm (0.9 in) |
| 1962 | 39.3 mm (1.5 in) |
| 1963 | 21.3 mm (0.8 in) |
| 1964 | 10.7 mm (0.4 in) |
| 1965 | 32.9 mm (1.3 in) |
| 1966 | 24.7 mm (1.0 in) |
| 1967 | 31.2 mm (1.2 in) |
| 1968 | 67.3 mm (2.6 in) |
| 1969 | 36.6 mm (1.4 in) |
| 1970 | 10.2 mm (0.4 in) |
| 1971 | 27.4 mm (1.1 in) |
| 1972 | 29.6 mm (1.2 in) |
| 1973 | 19.1 mm (0.8 in) |
| 1974 | 30.0 mm (1.2 in) |
| 1975 | 26.2 mm (1.0 in) |
| 1976 | 32.8 mm (1.3 in) |
| 1977 | 52.5 mm (2.1 in) |
| 1978 | 32.0 mm (1.3 in) |
| 1979 | 42.9 mm (1.7 in) |
| 1980 | 20.8 mm (0.8 in) |
| 1981 | 68.0 mm (2.7 in) |
| 1982 | 36.2 mm (1.4 in) |
| 1983 | 62.4 mm (2.5 in) |
| 1984 | 32.1 mm (1.3 in) |
| 1985 | 62.3 mm (2.5 in) |
| 1986 | 10.6 mm (0.4 in) |
| 1987 | 38.3 mm (1.5 in) |
| 1988 | 29.4 mm (1.2 in) |
| 1989 | 22.0 mm (0.9 in) |
| 1990 | 29.2 mm (1.1 in) |
| 1991 | 22.6 mm (0.9 in) |
| 1992 | 15.3 mm (0.6 in) |
| 1993 | 24.6 mm (1.0 in) |
| 1994 | 16.0 mm (0.6 in) |
| 1995 | 30.9 mm (1.2 in) |
| 1996 | 15.5 mm (0.6 in) |
| 1997 | 22.1 mm (0.9 in) |
| 1998 | 35.1 mm (1.4 in) |
| 1999 | 29.7 mm (1.2 in) |
| 2000 | 53.1 mm (2.1 in) |
| 2001 | 22.5 mm (0.9 in) |
| 2002 | 7.6 mm (0.30 in) |
| 2003 | 19.0 mm (0.7 in) |
| 2004 | 17.5 mm (0.7 in) |
| 2005 | 27.8 mm (1.1 in) |
| 2006 | 17.6 mm (0.7 in) |
| 2007 | 11.4 mm (0.4 in) |
| 2008 | 25.4 mm (1.0 in) |
| 2009 | 14.7 mm (0.6 in) |
| 2010 | 17.8 mm (0.7 in) |
| 2011 | 15.1 mm (0.6 in) |
| 2012 | 27.7 mm (1.1 in) |
| 2013 | 49.1 mm (1.9 in) |
| 2014 | 22.1 mm (0.9 in) |
| 2015 | 48.3 mm (1.9 in) |
| 2016 | 29.8 mm (1.2 in) |
| 2017 | 19.5 mm (0.8 in) |
| 2018 | 17.6 mm (0.7 in) |
| 2019 | 26.2 mm (1.0 in) |
| 2020 | 9.9 mm (0.39 in) |
| 2021 | 17.0 mm (0.7 in) |
| 2022 | 30.8 mm (1.2 in) |
| 2023 | 87.9 mm (3.5 in) |
| 2024 | 17.3 mm (0.7 in) |
| 2025 | 39.7 mm (1.6 in) |
| 2026 | 19.9 mm (0.8 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1954 | 68 days |
| 1955 | 98 days |
| 1956 | 89 days |
| 1957 | 80 days |
| 1958 | 54 days |
| 1959 | 94 days |
| 1960 | 76 days |
| 1961 | 50 days |
| 1962 | 63 days |
| 1963 | 79 days |
| 1964 | 57 days |
| 1965 | 69 days |
| 1966 | 74 days |
| 1967 | 67 days |
| 1968 | 61 days |
| 1969 | 80 days |
| 1970 | 80 days |
| 1971 | 70 days |
| 1972 | 129 days |
| 1973 | 46 days |
| 1974 | 71 days |
| 1975 | 93 days |
| 1976 | 90 days |
| 1977 | 106 days |
| 1978 | 87 days |
| 1979 | 113 days |
| 1980 | 64 days |
| 1981 | 74 days |
| 1982 | 76 days |
| 1983 | 92 days |
| 1984 | 81 days |
| 1985 | 51 days |
| 1986 | 107 days |
| 1987 | 105 days |
| 1988 | 44 days |
| 1989 | 105 days |
| 1990 | 74 days |
| 1991 | 54 days |
| 1992 | 110 days |
| 1993 | 86 days |
| 1994 | 73 days |
| 1995 | 111 days |
| 1996 | 74 days |
| 1997 | 79 days |
| 1998 | 53 days |
| 1999 | 104 days |
| 2000 | 63 days |
| 2001 | 112 days |
| 2002 | 112 days |
| 2003 | 71 days |
| 2004 | 60 days |
| 2005 | 68 days |
| 2006 | 62 days |
| 2007 | 102 days |
| 2008 | 88 days |
| 2009 | 105 days |
| 2010 | 36 days |
| 2011 | 55 days |
| 2012 | 44 days |
| 2013 | 64 days |
| 2014 | 71 days |
| 2015 | 52 days |
| 2016 | 81 days |
| 2017 | 109 days |
| 2018 | 63 days |
| 2019 | 52 days |
| 2020 | 103 days |
| 2021 | 85 days |
| 2022 | 135 days |
| 2023 | 56 days |
| 2024 | 123 days |
| 2025 | 111 days |
| 2026 | 74 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
71 years with a frostAcross 71 years with a frost, the median last spring frost at Tonopah AP falls on 12 May and the median first autumn frost on 13 October, which leaves a median of 156 days between them.
In 1996 to 2025 the median growing season was 163 days. That is 14 days more than in 1955 to 1984.
Fitted over all years, the growing season changes by +3.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1955 to 1984) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 12 May | 15 May | 2 May | 13 days earlier | -2.7 days per decade |
| First autumn frost | 13 October | 11 October | 13 October | 2 days later | +1.0 days per decade |
| Growing days | 156 days | 149 days | 163 days | 14 days more | +3.6 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
71 years, 1955 to 2025A day with at least 17.9 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 56.1 mm (2.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 17.9 mm (0.7 in) | |
| 5 years | 26.4 mm (1.0 in) | |
| 10 years | 32.6 mm (1.3 in) | |
| 25 years | 41.3 mm (1.6 in) | |
| 50 years | 48.4 mm (1.9 in) | |
| 100 years | 56.1 mm (2.2 in) | Longer than the 71 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 71 years of values from 1955 to 2025.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 64.8 mm (2.6 in) in 2023; 41.1 mm (1.6 in) in 1977; 40.4 mm (1.6 in) in 2015.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Tonopah AP had a mean temperature of 12.1 C (53.7 F) and 115.3 mm (4.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Fallon Naas (United States, 207 km away), Caliente (United States, 230 km away) and Lahontan Dam (United States, 233 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Fallon Naas | United States | 207 km (129 mi) | 12.0 C (53.6 F) | 152.6 mm (6.0 in) | 0.70 |
| Caliente | United States | 230 km (143 mi) | 11.9 C (53.5 F) | 225.7 mm (8.9 in) | 0.78 |
| Lahontan Dam | United States | 233 km (145 mi) | 12.6 C (54.6 F) | 141.1 mm (5.6 in) | 0.84 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
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). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-16).