Fortuna 1 W Weather Records (USC00323196)
Record envelope, standing records and threshold days for Fortuna 1 W (USC00323196), North Dakota, United States, with 64 years of record.
Key Facts for Fortuna 1 W
- Fortuna 1 W (USC00323196) is a weather station in North Dakota, United States at 48.91 latitude and -103.81 longitude, 716 m (2,350 ft) above sea level.
- The station reports from 1963 to 2026, 64 years of record.
- 1,464 records set at Fortuna 1 W still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Fortuna 1 W tied a daily record high minimum temperature of 16.7 C (62.1 F) on 23 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: North Dakota, United States, 48.91 latitude, -103.81 longitude.
- Elevation: 716 m (2,350 ft).
- Period of record: 1963 to 2026, 64 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
5 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 15.0 C (59.0 F) | -42.2 C (-44.0 F) | 4.4 C (39.9 F) | -36.1 C (-33.0 F) |
| Feb | 17.8 C (64.0 F) | -42.2 C (-44.0 F) | 3.3 C (37.9 F) | -26.7 C (-16.1 F) |
| Mar | 24.4 C (75.9 F) | -36.1 C (-33.0 F) | 20.0 C (68.0 F) | -19.4 C (-2.9 F) |
| Apr | 32.2 C (90.0 F) | -23.9 C (-11.0 F) | 28.3 C (82.9 F) | -11.1 C (12.0 F) |
| May | 37.8 C (100.0 F) | -10.0 C (14.0 F) | n/a | n/a |
| Jun | 39.4 C (102.9 F) | -5.6 C (21.9 F) | n/a | n/a |
| Jul | 41.1 C (106.0 F) | 2.8 C (37.0 F) | n/a | n/a |
| Aug | 40.6 C (105.1 F) | -0.6 C (30.9 F) | 35.6 C (96.1 F) | 4.4 C (39.9 F) |
| Sep | 38.9 C (102.0 F) | -7.2 C (19.0 F) | n/a | n/a |
| Oct | 32.8 C (91.0 F) | -20.6 C (-5.1 F) | n/a | n/a |
| Nov | 22.8 C (73.0 F) | -32.2 C (-26.0 F) | n/a | n/a |
| Dec | 11.7 C (53.1 F) | -42.8 C (-45.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1963 | 20 |
| 1964 | 29 |
| 1965 | 23 |
| 1966 | 29 |
| 1967 | 11 |
| 1968 | 38 |
| 1969 | 32 |
| 1970 | 7 |
| 1971 | 16 |
| 1972 | 36 |
| 1973 | 20 |
| 1974 | 18 |
| 1975 | 15 |
| 1976 | 11 |
| 1977 | 32 |
| 1978 | 20 |
| 1979 | 23 |
| 1980 | 26 |
| 1981 | 22 |
| 1982 | 22 |
| 1983 | 29 |
| 1984 | 39 |
| 1985 | 40 |
| 1986 | 29 |
| 1987 | 35 |
| 1988 | 37 |
| 1989 | 41 |
| 1990 | 12 |
| 1991 | 25 |
| 1992 | 38 |
| 1993 | 18 |
| 1994 | 15 |
| 1995 | 18 |
| 1996 | 26 |
| 1997 | 18 |
| 1998 | 14 |
| 1999 | 23 |
| 2000 | 23 |
| 2001 | 17 |
| 2002 | 27 |
| 2003 | 35 |
| 2004 | 24 |
| 2005 | 22 |
| 2006 | 18 |
| 2007 | 16 |
| 2008 | 15 |
| 2009 | 37 |
| 2010 | 8 |
| 2011 | 9 |
| 2012 | 20 |
| 2013 | 19 |
| 2014 | 21 |
| 2015 | 23 |
| 2016 | 14 |
| 2017 | 23 |
| 2018 | 26 |
| 2019 | 15 |
| 2020 | 22 |
| 2021 | 34 |
| 2022 | 21 |
| 2023 | 24 |
| 2024 | 13 |
| 2025 | 20 |
| 2026 | 11 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1997-03-13 | Record daily snowfall | Record daily snowfall 38.1 cm (15.0 in) |
| 2007-07-25 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
| 2007-07-25 | Record high minimum temperature | Record high minimum temperature 22.2 C (72.0 F) |
Wettest Day of Each Month
Jul: 146.1 mm (5.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 25.4 mm (1.0 in) | 12 January 2013 |
| Feb | 25.4 mm (1.0 in) | 10 February 2009 |
| Mar | 27.9 mm (1.1 in) | 2 March 1976 |
| Apr | 50.8 mm (2.0 in) | 7 April 2012 |
| May | 54.6 mm (2.1 in) | 6 May 1965 |
| Jun | 71.1 mm (2.8 in) | 20 June 1995 |
| Jul | 146.1 mm (5.8 in) | 3 July 1990 |
| Aug | 50.8 mm (2.0 in) | 18 August 1990 |
| Sep | 55.4 mm (2.2 in) | 12 September 1978 |
| Oct | 50.8 mm (2.0 in) | 23 October 1997 |
| Nov | 29.7 mm (1.2 in) | 24 November 1993 |
| Dec | 34.8 mm (1.4 in) | 3 December 1982 |
Period of Record Coverage
1963 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1963 | 90 | 25% | No |
| 1964 | 365 | 100% | Yes |
| 1965 | 206 | 56% | No |
| 1966 | 365 | 100% | Yes |
| 1967 | 245 | 67% | No |
| 1968 | 364 | 99% | Yes |
| 1969 | 286 | 78% | No |
| 1970 | 116 | 32% | No |
| 1971 | 362 | 99% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 361 | 99% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 361 | 99% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 360 | 99% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 358 | 98% | Yes |
| 1982 | 353 | 97% | Yes |
| 1983 | 359 | 98% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 361 | 99% | Yes |
| 1986 | 339 | 93% | Yes |
| 1987 | 334 | 92% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 359 | 98% | Yes |
| 1990 | 353 | 97% | Yes |
| 1991 | 363 | 99% | Yes |
| 1992 | 362 | 99% | Yes |
| 1993 | 361 | 99% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 355 | 97% | Yes |
| 1997 | 319 | 87% | No |
| 1998 | 353 | 97% | Yes |
| 1999 | 352 | 96% | Yes |
| 2000 | 346 | 95% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 340 | 93% | Yes |
| 2003 | 347 | 95% | Yes |
| 2004 | 363 | 99% | Yes |
| 2005 | 364 | 100% | Yes |
| 2006 | 339 | 93% | Yes |
| 2007 | 356 | 98% | Yes |
| 2008 | 364 | 99% | Yes |
| 2009 | 363 | 99% | Yes |
| 2010 | 347 | 95% | Yes |
| 2011 | 361 | 99% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 355 | 97% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 331 | 91% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 358 | 98% | Yes |
| 2018 | 361 | 99% | Yes |
| 2019 | 354 | 97% | Yes |
| 2020 | 363 | 99% | Yes |
| 2021 | 357 | 98% | Yes |
| 2022 | 340 | 93% | Yes |
| 2023 | 340 | 93% | Yes |
| 2024 | 183 | 50% | No |
| 2025 | 298 | 82% | No |
| 2026 | 116 | 32% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 23 August 2026 | Fortuna 1 W, US | daily high min (Tie, Provisional) | 16.7 C (62.1 F) | tie | 23 years | 3 of 100 (Routine) |
| 8 August 2026 | Fortuna 1 W, US | daily low min (Tie) | 5.0 C (41.0 F) | tie | 7 years | 2 of 100 (Routine) |
| 3 August 2026 | Fortuna 1 W, US | daily high min | 18.3 C (64.9 F) | 0.5 C (0.9 F) | 7 years | 9 of 100 (Routine) |
| 26 April 2026 | Fortuna 1 W, US | daily low min | -9.4 C (15.1 F) | 0.5 C (0.9 F) | 37 years | 17 of 100 (Routine) |
| 19 April 2026 | Fortuna 1 W, US | daily low min (Tie) | -10.6 C (12.9 F) | tie | 60 years | 6 of 100 (Routine) |
| 12 April 2026 | Fortuna 1 W, US | daily high min | 6.1 C (43.0 F) | 1.1 C (2.0 F) | 28 years | 16 of 100 (Routine) |
| 21 March 2026 | Fortuna 1 W, US | daily high min | 1.1 C (34.0 F) | 0.5 C (0.9 F) | 35 years | 16 of 100 (Routine) |
| 20 March 2026 | Fortuna 1 W, US | daily high min | 0.6 C (33.1 F) | 1.2 C (2.2 F) | 53 years | 23 of 100 (Routine) |
| 18 March 2026 | Fortuna 1 W, US | daily high min | 1.1 C (34.0 F) | 1.1 C (2.0 F) | 40 years | 19 of 100 (Routine) |
| 10 March 2026 | Fortuna 1 W, US | daily high max | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 37 years | 19 of 100 (Routine) |
| 24 January 2026 | Fortuna 1 W, US | daily low min | -33.3 C (-27.9 F) | 2.2 C (4.0 F) | 30 years | 17 of 100 (Routine) |
| 23 January 2026 | Fortuna 1 W, US | daily low max | -27.8 C (-18.0 F) | 2.8 C (5.0 F) | 60 years | 27 of 100 (Routine) |
| 14 January 2026 | Fortuna 1 W, US | daily high min | -2.8 C (27.0 F) | 3.3 C (5.9 F) | 52 years | 24 of 100 (Routine) |
| 13 January 2026 | Fortuna 1 W, US | daily high min | 0.0 C (32.0 F) | 1.1 C (2.0 F) | 39 years | 18 of 100 (Routine) |
| 16 December 2025 | Fortuna 1 W, US | daily high max (Tie) | 6.1 C (43.0 F) | tie | 59 years | 5 of 100 (Routine) |
| 13 December 2025 | Fortuna 1 W, US | daily low max (Tie) | -22.2 C (-8.0 F) | tie | 62 years | 6 of 100 (Routine) |
| 26 October 2025 | Fortuna 1 W, US | daily high min (Tie) | 6.7 C (44.1 F) | tie | 48 years | 5 of 100 (Routine) |
| 16 October 2025 | Fortuna 1 W, US | daily high min (Tie) | 6.1 C (43.0 F) | tie | 62 years | 6 of 100 (Routine) |
| 6 September 2025 | Fortuna 1 W, US | daily low min (Tie) | -1.1 C (30.0 F) | tie | 7 years | 2 of 100 (Routine) |
| 21 August 2025 | Fortuna 1 W, US | daily high min (Tie) | 16.7 C (62.1 F) | tie | 26 years | 3 of 100 (Routine) |
Climate Trend
47 complete years, 1964 to 2022| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1964 | 3.7 C | +0.19 C |
| 1966 | 3.3 C | -0.18 C |
| 1968 | 4.5 C | +0.98 C |
| 1971 | 3.1 C | -0.39 C |
| 1972 | 2.0 C | -1.49 C |
| 1973 | 4.4 C | +0.88 C |
| 1974 | 3.3 C | -0.23 C |
| 1975 | 2.7 C | -0.79 C |
| 1976 | 4.0 C | +0.45 C |
| 1977 | 4.1 C | +0.55 C |
| 1978 | 2.4 C | -1.10 C |
| 1979 | 2.2 C | -1.30 C |
| 1980 | 4.1 C | +0.55 C |
| 1981 | 5.5 C | +1.96 C |
| 1982 | 1.5 C | -2.00 C |
| 1983 | 3.6 C | +0.13 C |
| 1984 | 3.9 C | +0.39 C |
| 1985 | 2.3 C | -1.25 C |
| 1987 | 5.4 C | +1.90 C |
| 1988 | 4.6 C | +1.13 C |
| 1989 | 3.0 C | -0.51 C |
| 1990 | 4.5 C | +0.97 C |
| 1991 | 4.6 C | +1.11 C |
| 1992 | 4.3 C | +0.82 C |
| 1993 | 2.4 C | -1.08 C |
| 1994 | 3.3 C | -0.25 C |
| 1995 | 3.2 C | -0.34 C |
| 1996 | 1.1 C | -2.38 C |
| 1998 | 4.7 C | +1.24 C |
| 2001 | 4.2 C | +0.74 C |
| 2004 | 2.7 C | -0.76 C |
| 2005 | 4.1 C | +0.62 C |
| 2007 | 4.2 C | +0.71 C |
| 2008 | 2.7 C | -0.76 C |
| 2009 | 1.8 C | -1.68 C |
| 2010 | 3.3 C | -0.22 C |
| 2011 | 3.6 C | +0.06 C |
| 2012 | 5.0 C | +1.45 C |
| 2013 | 2.4 C | -1.15 C |
| 2014 | 2.8 C | -0.74 C |
| 2016 | 5.6 C | +2.14 C |
| 2017 | 4.3 C | +0.81 C |
| 2018 | 2.6 C | -0.91 C |
| 2019 | 2.0 C | -1.52 C |
| 2020 | 4.3 C | +0.80 C |
| 2021 | 4.8 C | +1.26 C |
| 2022 | 2.8 C | -0.74 C |
The fitted trend in annual mean temperature here over 1964 to 2022 is 0.01 C (-0.18 to 0.20) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.02 F (-0.33 to 0.36) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.01 C (-0.18 to 0.20) per decade | 0.02 F (-0.33 to 0.36) per decade | 1964 to 2022 | 47 | Not clearly different from zero |
| Mean daily maximum | -0.01 C (-0.24 to 0.22) per decade | -0.02 F (-0.43 to 0.40) per decade | 1964 to 2022 | 47 | Not clearly different from zero |
| Mean daily minimum | 0.03 C (-0.15 to 0.20) per decade | 0.05 F (-0.27 to 0.37) per decade | 1964 to 2022 | 47 | Not clearly different from zero |
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
1963 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.1 C (106.0 F) | 2007 | 36.1 C (97.0 F) | 64 |
| Coldest night (TNn) | -42.8 C (-45.0 F) | 1983 | -35.6 C (-32.1 F) | 64 |
| Wettest day (Rx1day) | 146.1 mm (5.8 in) | 1990 | 37.6 mm (1.5 in) | 64 |
| Wettest five days (Rx5day) | 166.2 mm (6.5 in) | 1990 | 52.1 mm (2.1 in) | 63 |
| Longest dry spell (CDD) | 90 days | 1990 | 38 days | 64 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1963 | 28.3 C (82.9 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 28.3 C (82.9 F) |
| 1966 | 36.7 C (98.1 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 36.7 C (98.1 F) |
| 1969 | 37.2 C (99.0 F) |
| 1970 | 28.9 C (84.0 F) |
| 1971 | 37.8 C (100.0 F) |
| 1972 | 35.0 C (95.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 39.4 C (102.9 F) |
| 1977 | 35.0 C (95.0 F) |
| 1978 | 36.1 C (97.0 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 37.8 C (100.0 F) |
| 1981 | 37.2 C (99.0 F) |
| 1982 | 33.9 C (93.0 F) |
| 1983 | 40.6 C (105.1 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 38.3 C (100.9 F) |
| 1986 | 35.0 C (95.0 F) |
| 1987 | 36.1 C (97.0 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 38.9 C (102.0 F) |
| 1990 | 36.1 C (97.0 F) |
| 1991 | 36.1 C (97.0 F) |
| 1992 | 35.0 C (95.0 F) |
| 1993 | 33.3 C (91.9 F) |
| 1994 | 36.1 C (97.0 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 34.4 C (93.9 F) |
| 1997 | 35.0 C (95.0 F) |
| 1998 | 36.7 C (98.1 F) |
| 1999 | 35.6 C (96.1 F) |
| 2000 | 35.0 C (95.0 F) |
| 2001 | 36.7 C (98.1 F) |
| 2002 | 36.1 C (97.0 F) |
| 2003 | 37.2 C (99.0 F) |
| 2004 | 34.4 C (93.9 F) |
| 2005 | 36.1 C (97.0 F) |
| 2006 | 36.1 C (97.0 F) |
| 2007 | 41.1 C (106.0 F) |
| 2008 | 35.0 C (95.0 F) |
| 2009 | 33.3 C (91.9 F) |
| 2010 | 33.3 C (91.9 F) |
| 2011 | 36.1 C (97.0 F) |
| 2012 | 36.1 C (97.0 F) |
| 2013 | 33.3 C (91.9 F) |
| 2014 | 34.4 C (93.9 F) |
| 2015 | 39.4 C (102.9 F) |
| 2016 | 35.6 C (96.1 F) |
| 2017 | 37.8 C (100.0 F) |
| 2018 | 39.4 C (102.9 F) |
| 2019 | 33.3 C (91.9 F) |
| 2020 | 36.7 C (98.1 F) |
| 2021 | 37.2 C (99.0 F) |
| 2022 | 35.6 C (96.1 F) |
| 2023 | 37.8 C (100.0 F) |
| 2024 | 28.3 C (82.9 F) |
| 2025 | 36.7 C (98.1 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1963 | -33.3 C (-27.9 F) |
| 1964 | -33.9 C (-29.0 F) |
| 1965 | -36.7 C (-34.1 F) |
| 1966 | -37.8 C (-36.0 F) |
| 1967 | -36.1 C (-33.0 F) |
| 1968 | -37.2 C (-35.0 F) |
| 1969 | -40.0 C (-40.0 F) |
| 1970 | -30.0 C (-22.0 F) |
| 1971 | -35.0 C (-31.0 F) |
| 1972 | -37.8 C (-36.0 F) |
| 1973 | -32.8 C (-27.0 F) |
| 1974 | -36.1 C (-33.0 F) |
| 1975 | -32.8 C (-27.0 F) |
| 1976 | -34.4 C (-29.9 F) |
| 1977 | -37.2 C (-35.0 F) |
| 1978 | -34.4 C (-29.9 F) |
| 1979 | -34.4 C (-29.9 F) |
| 1980 | -34.4 C (-29.9 F) |
| 1981 | -32.2 C (-26.0 F) |
| 1982 | -42.2 C (-44.0 F) |
| 1983 | -42.8 C (-45.0 F) |
| 1984 | -36.1 C (-33.0 F) |
| 1985 | -35.6 C (-32.1 F) |
| 1986 | -34.4 C (-29.9 F) |
| 1987 | -23.3 C (-9.9 F) |
| 1988 | -35.6 C (-32.1 F) |
| 1989 | -38.9 C (-38.0 F) |
| 1990 | -38.3 C (-36.9 F) |
| 1991 | -35.6 C (-32.1 F) |
| 1992 | -31.7 C (-25.1 F) |
| 1993 | -38.3 C (-36.9 F) |
| 1994 | -38.3 C (-36.9 F) |
| 1995 | -30.6 C (-23.1 F) |
| 1996 | -39.4 C (-38.9 F) |
| 1997 | -37.2 C (-35.0 F) |
| 1998 | -33.3 C (-27.9 F) |
| 1999 | -33.3 C (-27.9 F) |
| 2000 | -31.1 C (-24.0 F) |
| 2001 | -30.6 C (-23.1 F) |
| 2002 | -32.8 C (-27.0 F) |
| 2003 | -35.6 C (-32.1 F) |
| 2004 | -37.8 C (-36.0 F) |
| 2005 | -37.8 C (-36.0 F) |
| 2006 | -31.1 C (-24.0 F) |
| 2007 | -34.4 C (-29.9 F) |
| 2008 | -36.7 C (-34.1 F) |
| 2009 | -38.9 C (-38.0 F) |
| 2010 | -36.7 C (-34.1 F) |
| 2011 | -35.6 C (-32.1 F) |
| 2012 | -32.2 C (-26.0 F) |
| 2013 | -33.9 C (-29.0 F) |
| 2014 | -36.1 C (-33.0 F) |
| 2015 | -31.7 C (-25.1 F) |
| 2016 | -34.4 C (-29.9 F) |
| 2017 | -36.1 C (-33.0 F) |
| 2018 | -36.1 C (-33.0 F) |
| 2019 | -42.2 C (-44.0 F) |
| 2020 | -32.8 C (-27.0 F) |
| 2021 | -39.4 C (-38.9 F) |
| 2022 | -37.2 C (-35.0 F) |
| 2023 | -32.8 C (-27.0 F) |
| 2024 | -36.1 C (-33.0 F) |
| 2025 | -38.9 C (-38.0 F) |
| 2026 | -36.1 C (-33.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1963 | 4.6 mm (0.18 in) |
| 1964 | 31.0 mm (1.2 in) |
| 1965 | 54.6 mm (2.1 in) |
| 1966 | 45.0 mm (1.8 in) |
| 1967 | 25.9 mm (1.0 in) |
| 1968 | 38.1 mm (1.5 in) |
| 1969 | 31.8 mm (1.3 in) |
| 1970 | 16.8 mm (0.7 in) |
| 1971 | 24.4 mm (1.0 in) |
| 1972 | 21.8 mm (0.9 in) |
| 1973 | 39.4 mm (1.6 in) |
| 1974 | 24.1 mm (0.9 in) |
| 1975 | 37.1 mm (1.5 in) |
| 1976 | 29.5 mm (1.2 in) |
| 1977 | 27.9 mm (1.1 in) |
| 1978 | 65.8 mm (2.6 in) |
| 1979 | 21.1 mm (0.8 in) |
| 1980 | 38.1 mm (1.5 in) |
| 1981 | 16.5 mm (0.6 in) |
| 1982 | 34.8 mm (1.4 in) |
| 1983 | 25.4 mm (1.0 in) |
| 1984 | 25.7 mm (1.0 in) |
| 1985 | 43.2 mm (1.7 in) |
| 1986 | 41.4 mm (1.6 in) |
| 1987 | 50.8 mm (2.0 in) |
| 1988 | 41.1 mm (1.6 in) |
| 1989 | 40.6 mm (1.6 in) |
| 1990 | 146.1 mm (5.8 in) |
| 1991 | 47.0 mm (1.9 in) |
| 1992 | 27.2 mm (1.1 in) |
| 1993 | 58.4 mm (2.3 in) |
| 1994 | 40.6 mm (1.6 in) |
| 1995 | 71.1 mm (2.8 in) |
| 1996 | 48.3 mm (1.9 in) |
| 1997 | 64.8 mm (2.6 in) |
| 1998 | 31.8 mm (1.3 in) |
| 1999 | 38.1 mm (1.5 in) |
| 2000 | 47.0 mm (1.9 in) |
| 2001 | 20.3 mm (0.8 in) |
| 2002 | 33.0 mm (1.3 in) |
| 2003 | 25.4 mm (1.0 in) |
| 2004 | 33.0 mm (1.3 in) |
| 2005 | 45.7 mm (1.8 in) |
| 2006 | 25.4 mm (1.0 in) |
| 2007 | 50.8 mm (2.0 in) |
| 2008 | 49.5 mm (1.9 in) |
| 2009 | 35.6 mm (1.4 in) |
| 2010 | 50.8 mm (2.0 in) |
| 2011 | 57.2 mm (2.3 in) |
| 2012 | 50.8 mm (2.0 in) |
| 2013 | 33.0 mm (1.3 in) |
| 2014 | 50.8 mm (2.0 in) |
| 2015 | 35.6 mm (1.4 in) |
| 2016 | 38.1 mm (1.5 in) |
| 2017 | 14.0 mm (0.6 in) |
| 2018 | 57.2 mm (2.3 in) |
| 2019 | 61.0 mm (2.4 in) |
| 2020 | 27.9 mm (1.1 in) |
| 2021 | 35.6 mm (1.4 in) |
| 2022 | 50.8 mm (2.0 in) |
| 2023 | 30.5 mm (1.2 in) |
| 2024 | 22.9 mm (0.9 in) |
| 2025 | 42.4 mm (1.7 in) |
| 2026 | 0.0 mm (0.00 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1963 | 8.4 mm (0.33 in) |
| 1964 | 51.0 mm (2.0 in) |
| 1965 | 97.7 mm (3.8 in) |
| 1966 | 69.4 mm (2.7 in) |
| 1967 | 29.2 mm (1.1 in) |
| 1968 | 86.3 mm (3.4 in) |
| 1969 | 75.8 mm (3.0 in) |
| 1970 | 16.8 mm (0.7 in) |
| 1971 | 32.5 mm (1.3 in) |
| 1972 | 40.6 mm (1.6 in) |
| 1973 | 71.9 mm (2.8 in) |
| 1974 | 45.1 mm (1.8 in) |
| 1975 | 51.3 mm (2.0 in) |
| 1976 | 52.9 mm (2.1 in) |
| 1977 | 63.9 mm (2.5 in) |
| 1978 | 83.1 mm (3.3 in) |
| 1979 | 40.2 mm (1.6 in) |
| 1980 | 46.7 mm (1.8 in) |
| 1981 | 38.9 mm (1.5 in) |
| 1982 | 40.9 mm (1.6 in) |
| 1983 | 47.7 mm (1.9 in) |
| 1984 | 31.6 mm (1.2 in) |
| 1985 | 73.2 mm (2.9 in) |
| 1986 | 61.3 mm (2.4 in) |
| 1987 | 50.8 mm (2.0 in) |
| 1988 | 43.1 mm (1.7 in) |
| 1989 | 40.6 mm (1.6 in) |
| 1990 | 166.2 mm (6.5 in) |
| 1991 | 55.9 mm (2.2 in) |
| 1992 | 51.9 mm (2.0 in) |
| 1993 | 128.8 mm (5.1 in) |
| 1994 | 58.6 mm (2.3 in) |
| 1995 | 105.6 mm (4.2 in) |
| 1996 | 68.9 mm (2.7 in) |
| 1997 | 95.3 mm (3.8 in) |
| 1998 | 72.4 mm (2.9 in) |
| 1999 | 65.1 mm (2.6 in) |
| 2000 | 81.3 mm (3.2 in) |
| 2001 | 36.6 mm (1.4 in) |
| 2002 | 39.4 mm (1.6 in) |
| 2003 | 31.8 mm (1.3 in) |
| 2004 | 30.5 mm (1.2 in) |
| 2005 | 60.2 mm (2.4 in) |
| 2006 | 48.3 mm (1.9 in) |
| 2007 | 53.3 mm (2.1 in) |
| 2008 | 74.9 mm (2.9 in) |
| 2009 | 50.8 mm (2.0 in) |
| 2010 | 78.7 mm (3.1 in) |
| 2011 | n/a |
| 2012 | 50.8 mm (2.0 in) |
| 2013 | 61.0 mm (2.4 in) |
| 2014 | 54.6 mm (2.1 in) |
| 2015 | 52.1 mm (2.1 in) |
| 2016 | 40.6 mm (1.6 in) |
| 2017 | 17.7 mm (0.7 in) |
| 2018 | 89.8 mm (3.5 in) |
| 2019 | 91.5 mm (3.6 in) |
| 2020 | 39.3 mm (1.5 in) |
| 2021 | 61.0 mm (2.4 in) |
| 2022 | 78.7 mm (3.1 in) |
| 2023 | 52.1 mm (2.1 in) |
| 2024 | 35.6 mm (1.4 in) |
| 2025 | 77.7 mm (3.1 in) |
| 2026 | 0.0 mm (0.00 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1963 | 51 days |
| 1964 | 48 days |
| 1965 | 41 days |
| 1966 | 61 days |
| 1967 | 41 days |
| 1968 | 64 days |
| 1969 | 34 days |
| 1970 | 20 days |
| 1971 | 39 days |
| 1972 | 33 days |
| 1973 | 31 days |
| 1974 | 38 days |
| 1975 | 26 days |
| 1976 | 56 days |
| 1977 | 30 days |
| 1978 | 30 days |
| 1979 | 36 days |
| 1980 | 45 days |
| 1981 | 34 days |
| 1982 | 16 days |
| 1983 | 54 days |
| 1984 | 46 days |
| 1985 | 28 days |
| 1986 | 32 days |
| 1987 | 47 days |
| 1988 | 33 days |
| 1989 | 57 days |
| 1990 | 90 days |
| 1991 | 35 days |
| 1992 | 34 days |
| 1993 | 62 days |
| 1994 | 38 days |
| 1995 | 25 days |
| 1996 | 29 days |
| 1997 | 47 days |
| 1998 | 26 days |
| 1999 | 53 days |
| 2000 | 25 days |
| 2001 | 75 days |
| 2002 | 36 days |
| 2003 | 29 days |
| 2004 | 25 days |
| 2005 | 56 days |
| 2006 | 26 days |
| 2007 | 43 days |
| 2008 | 30 days |
| 2009 | 45 days |
| 2010 | 45 days |
| 2011 | 1 day |
| 2012 | 60 days |
| 2013 | 34 days |
| 2014 | 54 days |
| 2015 | 40 days |
| 2016 | 45 days |
| 2017 | 31 days |
| 2018 | 28 days |
| 2019 | 27 days |
| 2020 | 40 days |
| 2021 | 37 days |
| 2022 | 24 days |
| 2023 | 25 days |
| 2024 | 39 days |
| 2025 | 56 days |
| 2026 | 61 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
47 years with a frostAcross 47 years with a frost, the median last spring frost at Fortuna 1 W falls on 16 May and the median first autumn frost on 14 September, which leaves a median of 121 days between them.
Fitted over all years, the growing season changes by +0.1 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1985 to 2022) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 16 May | n/a | 20 May | n/a | +0.7 days per decade |
| First autumn frost | 14 September | n/a | 15 September | n/a | +0.8 days per decade |
| Growing days | 121 days | n/a | 119 days | n/a | +0.1 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
39 years, 1964 to 2023A day with at least 36.1 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 108.1 mm (4.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 36.1 mm (1.4 in) | |
| 5 years | 50.4 mm (2.0 in) | |
| 10 years | 61.5 mm (2.4 in) | |
| 25 years | 78.0 mm (3.1 in) | |
| 50 years | 92.2 mm (3.6 in) | Longer than the 39 years of record |
| 100 years | 108.1 mm (4.3 in) | Longer than the 39 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, 39 years of values from 1964 to 2023.
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: 146.1 mm (5.8 in) in 1990; 65.8 mm (2.6 in) in 1978; 61.0 mm (2.4 in) in 2019.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Fortuna 1 W, at 1974. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1974 ran 0.5 C (1.0 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1974 | -0.5 | -1.0 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2007 to 2022 against 1961 to 1990Over 2007 to 2022, Fortuna 1 W had a mean temperature of 3.5 C (38.2 F) and 395.4 mm (15.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Bowbells (United States, 115 km away), Stanley 3 NNW (United States, 119 km away) and Mohall (United States, 169 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Bowbells | United States | 115 km (71 mi) | 3.7 C (38.6 F) | 436.1 mm (17.2 in) | 1.09 |
| Stanley 3 NNW | United States | 119 km (74 mi) | 3.5 C (38.4 F) | 470.1 mm (18.5 in) | 1.09 |
| Mohall | United States | 169 km (105 mi) | 3.7 C (38.6 F) | 420.9 mm (16.6 in) | 1.10 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).