Bonny Dam 2NE Weather Records (USC00050834)
Record envelope, standing records and threshold days for Bonny Dam 2NE (USC00050834), Colorado, United States, with 78 years of record.
Key Facts for Bonny Dam 2NE
- Bonny Dam 2NE (USC00050834) is a weather station in Colorado, United States at 39.66 latitude and -102.12 longitude, 1,133 m (3,717 ft) above sea level.
- The station reports from 1949 to 2026, 78 years of record.
- 1,464 records set at Bonny Dam 2NE still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Bonny Dam 2NE tied a daily record high minimum temperature of 20.0 C (68.0 F) on 25 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Colorado, United States, 39.66 latitude, -102.12 longitude.
- Elevation: 1,133 m (3,717 ft).
- Period of record: 1949 to 2026, 78 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
11 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 26.1 C (79.0 F) | -34.4 C (-29.9 F) | 22.8 C (73.0 F) | -20.6 C (-5.1 F) |
| Feb | 29.4 C (84.9 F) | -32.8 C (-27.0 F) | 23.3 C (73.9 F) | -15.0 C (5.0 F) |
| Mar | 33.9 C (93.0 F) | -31.1 C (-24.0 F) | 33.9 C (93.0 F) | -15.0 C (5.0 F) |
| Apr | 35.0 C (95.0 F) | -15.6 C (3.9 F) | 32.2 C (90.0 F) | -4.4 C (24.1 F) |
| May | 38.3 C (100.9 F) | -5.0 C (23.0 F) | 32.2 C (90.0 F) | 0.0 C (32.0 F) |
| Jun | 42.8 C (109.0 F) | -0.6 C (30.9 F) | 35.6 C (96.1 F) | 9.4 C (48.9 F) |
| Jul | 42.8 C (109.0 F) | 6.1 C (43.0 F) | 40.6 C (105.1 F) | 13.3 C (55.9 F) |
| Aug | 42.2 C (108.0 F) | 4.4 C (39.9 F) | 39.4 C (102.9 F) | 11.7 C (53.1 F) |
| Sep | 39.4 C (102.9 F) | -10.0 C (14.0 F) | n/a | n/a |
| Oct | 34.4 C (93.9 F) | -14.4 C (6.1 F) | n/a | n/a |
| Nov | 30.6 C (87.1 F) | -21.7 C (-7.1 F) | n/a | n/a |
| Dec | 26.7 C (80.1 F) | -31.1 C (-24.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1949 | 7 |
| 1950 | 26 |
| 1951 | 22 |
| 1952 | 31 |
| 1953 | 30 |
| 1954 | 24 |
| 1955 | 33 |
| 1956 | 14 |
| 1957 | 10 |
| 1958 | 15 |
| 1959 | 19 |
| 1960 | 36 |
| 1961 | 13 |
| 1962 | 29 |
| 1963 | 30 |
| 1964 | 20 |
| 1965 | 26 |
| 1966 | 17 |
| 1967 | 16 |
| 1968 | 12 |
| 1969 | 22 |
| 1970 | 14 |
| 1971 | 20 |
| 1972 | 26 |
| 1973 | 15 |
| 1974 | 19 |
| 1975 | 17 |
| 1976 | 17 |
| 1977 | 14 |
| 1978 | 13 |
| 1979 | 11 |
| 1980 | 16 |
| 1981 | 17 |
| 1982 | 19 |
| 1983 | 30 |
| 1984 | 19 |
| 1985 | 38 |
| 1986 | 14 |
| 1987 | 10 |
| 1988 | 9 |
| 1989 | 20 |
| 1990 | 21 |
| 1991 | 17 |
| 1992 | 18 |
| 1993 | 15 |
| 1994 | 14 |
| 1995 | 18 |
| 1996 | 11 |
| 1997 | 24 |
| 1998 | 15 |
| 1999 | 10 |
| 2000 | 30 |
| 2001 | 9 |
| 2002 | 32 |
| 2003 | 19 |
| 2004 | 24 |
| 2005 | 20 |
| 2006 | 16 |
| 2007 | 13 |
| 2008 | 11 |
| 2009 | 15 |
| 2010 | 9 |
| 2011 | 17 |
| 2012 | 25 |
| 2013 | 29 |
| 2014 | 52 |
| 2015 | 28 |
| 2016 | 5 |
| 2017 | 14 |
| 2020 | 17 |
| 2021 | 24 |
| 2022 | 19 |
| 2023 | 16 |
| 2024 | 8 |
| 2025 | 20 |
| 2026 | 19 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1982-02-05 | Record low minimum temperature | Record low minimum temperature -31.7 C (-25.1 F) |
| 1984-01-18 | Record low minimum temperature | Record low minimum temperature -34.4 C (-29.9 F) |
| 2001-07-15 | Record daily precipitation | Record daily precipitation 108.2 mm (4.3 in) |
Wettest Day of Each Month
Jul: 108.2 mm (4.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 24.4 mm (1.0 in) | 27 January 1994 |
| Feb | 27.9 mm (1.1 in) | 4 February 1960 |
| Mar | 45.7 mm (1.8 in) | 13 March 2021 |
| Apr | 50.0 mm (2.0 in) | 18 April 2009 |
| May | 106.7 mm (4.2 in) | 29 May 1975 |
| Jun | 67.3 mm (2.6 in) | 9 June 1974 |
| Jul | 108.2 mm (4.3 in) | 15 July 2001 |
| Aug | 78.7 mm (3.1 in) | 25 August 1977 |
| Sep | 100.8 mm (4.0 in) | 18 September 1996 |
| Oct | 48.8 mm (1.9 in) | 11 October 2005 |
| Nov | 50.8 mm (2.0 in) | 18 November 2015 |
| Dec | 38.1 mm (1.5 in) | 21 December 2006 |
Period of Record Coverage
1949 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1949 | 212 | 58% | No |
| 1950 | 351 | 96% | Yes |
| 1951 | 362 | 99% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 355 | 97% | Yes |
| 1955 | 363 | 99% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 360 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 361 | 99% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 362 | 99% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 356 | 97% | Yes |
| 1973 | 363 | 99% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 350 | 96% | Yes |
| 1976 | 362 | 99% | Yes |
| 1977 | 362 | 99% | Yes |
| 1978 | 277 | 76% | No |
| 1979 | 217 | 59% | No |
| 1980 | 356 | 97% | Yes |
| 1981 | 355 | 97% | Yes |
| 1982 | 314 | 86% | No |
| 1983 | 349 | 96% | Yes |
| 1984 | 315 | 86% | No |
| 1985 | 282 | 77% | No |
| 1986 | 215 | 59% | No |
| 1987 | 197 | 54% | No |
| 1988 | 179 | 49% | No |
| 1989 | 185 | 51% | No |
| 1990 | 356 | 98% | Yes |
| 1991 | 361 | 99% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 352 | 96% | Yes |
| 1994 | 364 | 100% | Yes |
| 1995 | 361 | 99% | Yes |
| 1996 | 241 | 66% | No |
| 1997 | 359 | 98% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 364 | 99% | Yes |
| 2001 | 361 | 99% | Yes |
| 2002 | 359 | 98% | Yes |
| 2003 | 360 | 99% | Yes |
| 2004 | 342 | 93% | Yes |
| 2005 | 334 | 92% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 349 | 96% | Yes |
| 2012 | 336 | 92% | Yes |
| 2013 | 356 | 98% | Yes |
| 2014 | 350 | 96% | Yes |
| 2015 | 323 | 88% | No |
| 2016 | 154 | 42% | No |
| 2017 | 58 | 16% | No |
| 2020 | 212 | 58% | No |
| 2021 | 356 | 98% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 322 | 88% | No |
| 2025 | 299 | 82% | No |
| 2026 | 243 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 25 August 2026 | Bonny Dam 2NE, US | daily high min (Tie, Provisional) | 20.0 C (68.0 F) | tie | 71 years | 7 of 100 (Routine) |
| 10 August 2026 | Bonny Dam 2NE, US | daily high min | 21.1 C (70.0 F) | 2.2 C (4.0 F) | 33 years | 25 of 100 (Routine) |
| 5 August 2026 | Bonny Dam 2NE, US | daily low max | 18.9 C (66.0 F) | 0.5 C (0.9 F) | 48 years | 22 of 100 (Routine) |
| 27 July 2026 | Bonny Dam 2NE, US | daily high max | 40.6 C (105.1 F) | 1.2 C (2.2 F) | 72 years | 30 of 100 (Routine) |
| 1 July 2026 | Bonny Dam 2NE, US | daily rain | 34.3 mm (1.4 in) | 8.1 mm (0.32 in) | 55 years | 29 of 100 (Routine) |
| 25 June 2026 | Bonny Dam 2NE, US | daily rain | 40.6 mm (1.6 in) | 17.2 mm (0.7 in) | 47 years | 38 of 100 (Notable) |
| 2 June 2026 | Bonny Dam 2NE, US | daily rain | 34.3 mm (1.4 in) | 6.4 mm (0.25 in) | 33 years | 23 of 100 (Routine) |
| 22 May 2026 | Bonny Dam 2NE, US | daily rain | 55.9 mm (2.2 in) | 40.4 mm (1.6 in) | 31 years | 49 of 100 (Notable) |
| 19 May 2026 | Bonny Dam 2NE, US | daily low max (Tie) | 7.8 C (46.0 F) | tie | 44 years | 5 of 100 (Routine) |
| 7 May 2026 | Bonny Dam 2NE, US | daily low max (Tie) | 9.4 C (48.9 F) | tie | 75 years | 7 of 100 (Routine) |
| 22 April 2026 | Bonny Dam 2NE, US | daily high min | 13.3 C (55.9 F) | 2.2 C (4.0 F) | 36 years | 22 of 100 (Routine) |
| 22 April 2026 | Bonny Dam 2NE, US | daily high max | 32.2 C (90.0 F) | 0.5 C (0.9 F) | 45 years | 20 of 100 (Routine) |
| 13 April 2026 | Bonny Dam 2NE, US | daily high min (Tie) | 10.6 C (51.1 F) | tie | 3 years | 1 of 100 (Routine) |
| 30 March 2026 | Bonny Dam 2NE, US | daily high max | 29.4 C (84.9 F) | 0.5 C (0.9 F) | 4 years | 8 of 100 (Routine) |
| 26 March 2026 | Bonny Dam 2NE, US | monthly high min | 11.7 C (53.1 F) | 0.6 C (1.1 F) | 13 years | 22 of 100 (Routine) |
| 26 March 2026 | Bonny Dam 2NE, US | monthly high max | 33.9 C (93.0 F) | 0.6 C (1.1 F) | 0 years | 17 of 100 (Routine) |
| 25 March 2026 | Bonny Dam 2NE, US | daily high max | 29.4 C (84.9 F) | 2.2 C (4.0 F) | 59 years | 26 of 100 (Routine) |
| 22 March 2026 | Bonny Dam 2NE, US | monthly high max | 33.3 C (91.9 F) | 2.2 C (4.0 F) | 62 years | 37 of 100 (Notable) |
| 21 March 2026 | Bonny Dam 2NE, US | daily high max | 30.0 C (86.0 F) | 2.2 C (4.0 F) | 28 years | 17 of 100 (Routine) |
| 21 March 2026 | Bonny Dam 2NE, US | daily high min | 7.8 C (46.0 F) | 2.8 C (5.0 F) | 15 years | 16 of 100 (Routine) |
Climate Trend
54 complete years, 1950 to 2023| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1950 | 10.4 C | -0.13 C |
| 1951 | 9.2 C | -1.29 C |
| 1952 | 10.6 C | +0.03 C |
| 1953 | 11.4 C | +0.90 C |
| 1955 | 10.7 C | +0.21 C |
| 1956 | 11.3 C | +0.73 C |
| 1957 | 10.0 C | -0.51 C |
| 1958 | 10.4 C | -0.13 C |
| 1959 | 10.1 C | -0.39 C |
| 1960 | 9.5 C | -0.98 C |
| 1961 | 9.6 C | -0.91 C |
| 1962 | 10.7 C | +0.13 C |
| 1963 | 11.5 C | +0.98 C |
| 1964 | 10.1 C | -0.38 C |
| 1965 | 10.1 C | -0.39 C |
| 1966 | 9.8 C | -0.69 C |
| 1967 | 10.0 C | -0.53 C |
| 1968 | 9.7 C | -0.84 C |
| 1969 | 10.3 C | -0.21 C |
| 1970 | 10.3 C | -0.20 C |
| 1971 | 10.0 C | -0.53 C |
| 1972 | 9.8 C | -0.72 C |
| 1973 | 10.0 C | -0.56 C |
| 1974 | 10.0 C | -0.49 C |
| 1975 | 9.8 C | -0.69 C |
| 1976 | 10.1 C | -0.39 C |
| 1977 | 10.9 C | +0.39 C |
| 1980 | 10.4 C | -0.16 C |
| 1981 | 11.3 C | +0.75 C |
| 1983 | 9.6 C | -0.91 C |
| 1990 | 10.8 C | +0.27 C |
| 1991 | 11.0 C | +0.47 C |
| 1992 | 10.4 C | -0.10 C |
| 1994 | 11.1 C | +0.53 C |
| 1995 | 10.4 C | -0.11 C |
| 1997 | 10.1 C | -0.42 C |
| 1998 | 11.1 C | +0.56 C |
| 1999 | 11.6 C | +1.12 C |
| 2000 | 11.4 C | +0.89 C |
| 2001 | 11.5 C | +0.97 C |
| 2002 | 11.1 C | +0.57 C |
| 2003 | 11.5 C | +0.96 C |
| 2004 | 11.1 C | +0.53 C |
| 2006 | 11.5 C | +0.99 C |
| 2007 | 10.3 C | -0.18 C |
| 2008 | 10.2 C | -0.37 C |
| 2009 | 9.9 C | -0.67 C |
| 2010 | 10.9 C | +0.41 C |
| 2011 | 10.6 C | +0.05 C |
| 2013 | 10.7 C | +0.22 C |
| 2014 | 11.2 C | +0.71 C |
| 2021 | 11.3 C | +0.73 C |
| 2022 | 10.6 C | +0.05 C |
| 2023 | 10.5 C | -0.02 C |
The annual mean temperature here has risen by 0.11 C (0.04 to 0.19) per decade over 1950 to 2023. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 54 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.11 C (0.04 to 0.19) per decade | 0.2 F (0.1 to 0.3) per decade | 1950 to 2023 | 54 | Rise |
| Mean daily maximum | 0.08 C (-0.01 to 0.17) per decade | 0.14 F (-0.02 to 0.30) per decade | 1950 to 2023 | 54 | Not clearly different from zero |
| Mean daily minimum | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.1 to 0.4) per decade | 1950 to 2023 | 54 | 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
1949 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.8 C (109.0 F) | 1954 | 39.4 C (102.9 F) | 76 |
| Coldest night (TNn) | -34.4 C (-29.9 F) | 1984 | -23.3 C (-9.9 F) | 76 |
| Wettest day (Rx1day) | 108.2 mm (4.3 in) | 2001 | 44.5 mm (1.8 in) | 76 |
| Wettest five days (Rx5day) | 148.6 mm (5.9 in) | 1975 | 63.8 mm (2.5 in) | 76 |
| Longest dry spell (CDD) | 88 days | 1950 | 40 days | 76 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1949 | 37.2 C (99.0 F) |
| 1950 | 38.3 C (100.9 F) |
| 1951 | 37.2 C (99.0 F) |
| 1952 | 40.6 C (105.1 F) |
| 1953 | 41.1 C (106.0 F) |
| 1954 | 42.8 C (109.0 F) |
| 1955 | 39.4 C (102.9 F) |
| 1956 | 38.9 C (102.0 F) |
| 1957 | 37.8 C (100.0 F) |
| 1958 | 38.3 C (100.9 F) |
| 1959 | 38.9 C (102.0 F) |
| 1960 | 39.4 C (102.9 F) |
| 1961 | 38.3 C (100.9 F) |
| 1962 | 38.9 C (102.0 F) |
| 1963 | 40.0 C (104.0 F) |
| 1964 | 40.6 C (105.1 F) |
| 1965 | 37.2 C (99.0 F) |
| 1966 | 38.9 C (102.0 F) |
| 1967 | 37.8 C (100.0 F) |
| 1968 | 38.9 C (102.0 F) |
| 1969 | 42.2 C (108.0 F) |
| 1970 | 40.0 C (104.0 F) |
| 1971 | 40.6 C (105.1 F) |
| 1972 | 36.1 C (97.0 F) |
| 1973 | 41.1 C (106.0 F) |
| 1974 | 39.4 C (102.9 F) |
| 1975 | 38.3 C (100.9 F) |
| 1976 | 39.4 C (102.9 F) |
| 1977 | 40.6 C (105.1 F) |
| 1978 | 41.7 C (107.1 F) |
| 1979 | 39.4 C (102.9 F) |
| 1980 | 39.4 C (102.9 F) |
| 1981 | 38.9 C (102.0 F) |
| 1982 | 38.3 C (100.9 F) |
| 1983 | 38.9 C (102.0 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 42.2 C (108.0 F) |
| 1986 | 38.9 C (102.0 F) |
| 1987 | 38.9 C (102.0 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 37.8 C (100.0 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 38.9 C (102.0 F) |
| 1992 | 37.8 C (100.0 F) |
| 1993 | 39.4 C (102.9 F) |
| 1994 | 37.8 C (100.0 F) |
| 1995 | 40.0 C (104.0 F) |
| 1996 | 38.3 C (100.9 F) |
| 1997 | 38.3 C (100.9 F) |
| 1998 | 40.0 C (104.0 F) |
| 1999 | 38.9 C (102.0 F) |
| 2000 | 40.0 C (104.0 F) |
| 2001 | 39.4 C (102.9 F) |
| 2002 | 41.1 C (106.0 F) |
| 2003 | 41.1 C (106.0 F) |
| 2004 | 39.4 C (102.9 F) |
| 2005 | 42.8 C (109.0 F) |
| 2006 | 40.6 C (105.1 F) |
| 2007 | 39.4 C (102.9 F) |
| 2008 | 40.6 C (105.1 F) |
| 2009 | 36.7 C (98.1 F) |
| 2010 | 38.3 C (100.9 F) |
| 2011 | 40.0 C (104.0 F) |
| 2012 | 42.8 C (109.0 F) |
| 2013 | 42.2 C (108.0 F) |
| 2014 | 40.6 C (105.1 F) |
| 2015 | 37.8 C (100.0 F) |
| 2016 | 36.7 C (98.1 F) |
| 2017 | 29.4 C (84.9 F) |
| 2020 | 38.9 C (102.0 F) |
| 2021 | 38.9 C (102.0 F) |
| 2022 | 40.0 C (104.0 F) |
| 2023 | 38.9 C (102.0 F) |
| 2024 | 40.0 C (104.0 F) |
| 2025 | 40.6 C (105.1 F) |
| 2026 | 40.6 C (105.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1949 | -16.1 C (3.0 F) |
| 1950 | -23.9 C (-11.0 F) |
| 1951 | -28.9 C (-20.0 F) |
| 1952 | -21.7 C (-7.1 F) |
| 1953 | -18.9 C (-2.0 F) |
| 1954 | -18.3 C (-0.9 F) |
| 1955 | -22.2 C (-8.0 F) |
| 1956 | -20.6 C (-5.1 F) |
| 1957 | -22.8 C (-9.0 F) |
| 1958 | -18.3 C (-0.9 F) |
| 1959 | -28.3 C (-18.9 F) |
| 1960 | -31.1 C (-24.0 F) |
| 1961 | -27.2 C (-17.0 F) |
| 1962 | -26.1 C (-15.0 F) |
| 1963 | -28.9 C (-20.0 F) |
| 1964 | -22.8 C (-9.0 F) |
| 1965 | -22.8 C (-9.0 F) |
| 1966 | -23.3 C (-9.9 F) |
| 1967 | -22.8 C (-9.0 F) |
| 1968 | -24.4 C (-11.9 F) |
| 1969 | -20.0 C (-4.0 F) |
| 1970 | -23.3 C (-9.9 F) |
| 1971 | -27.2 C (-17.0 F) |
| 1972 | -26.1 C (-15.0 F) |
| 1973 | -21.7 C (-7.1 F) |
| 1974 | -27.2 C (-17.0 F) |
| 1975 | -23.3 C (-9.9 F) |
| 1976 | -21.7 C (-7.1 F) |
| 1977 | -23.9 C (-11.0 F) |
| 1978 | -27.2 C (-17.0 F) |
| 1979 | -18.3 C (-0.9 F) |
| 1980 | -28.3 C (-18.9 F) |
| 1981 | -26.7 C (-16.1 F) |
| 1982 | -31.7 C (-25.1 F) |
| 1983 | -31.1 C (-24.0 F) |
| 1984 | -34.4 C (-29.9 F) |
| 1985 | -29.4 C (-20.9 F) |
| 1986 | -23.3 C (-9.9 F) |
| 1987 | -17.8 C (0.0 F) |
| 1988 | -24.4 C (-11.9 F) |
| 1989 | -27.2 C (-17.0 F) |
| 1990 | -30.0 C (-22.0 F) |
| 1991 | -18.9 C (-2.0 F) |
| 1992 | -20.0 C (-4.0 F) |
| 1993 | -26.7 C (-16.1 F) |
| 1994 | -22.2 C (-8.0 F) |
| 1995 | -20.0 C (-4.0 F) |
| 1996 | -23.3 C (-9.9 F) |
| 1997 | -25.6 C (-14.1 F) |
| 1998 | -26.1 C (-15.0 F) |
| 1999 | -17.8 C (0.0 F) |
| 2000 | -18.9 C (-2.0 F) |
| 2001 | -16.1 C (3.0 F) |
| 2002 | -20.0 C (-4.0 F) |
| 2003 | -21.7 C (-7.1 F) |
| 2004 | -25.0 C (-13.0 F) |
| 2005 | -25.6 C (-14.1 F) |
| 2006 | -21.1 C (-6.0 F) |
| 2007 | -23.9 C (-11.0 F) |
| 2008 | -23.9 C (-11.0 F) |
| 2009 | -22.8 C (-9.0 F) |
| 2010 | -21.1 C (-6.0 F) |
| 2011 | -26.7 C (-16.1 F) |
| 2012 | -23.3 C (-9.9 F) |
| 2013 | -23.3 C (-9.9 F) |
| 2014 | -27.2 C (-17.0 F) |
| 2015 | -26.1 C (-15.0 F) |
| 2016 | -16.7 C (1.9 F) |
| 2017 | -21.7 C (-7.1 F) |
| 2020 | -15.0 C (5.0 F) |
| 2021 | -32.8 C (-27.0 F) |
| 2022 | -27.2 C (-17.0 F) |
| 2023 | -22.8 C (-9.0 F) |
| 2024 | -12.2 C (10.0 F) |
| 2025 | -23.9 C (-11.0 F) |
| 2026 | -20.6 C (-5.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1949 | 45.7 mm (1.8 in) |
| 1950 | 18.8 mm (0.7 in) |
| 1951 | 45.7 mm (1.8 in) |
| 1952 | 27.9 mm (1.1 in) |
| 1953 | 21.3 mm (0.8 in) |
| 1954 | 22.4 mm (0.9 in) |
| 1955 | 27.9 mm (1.1 in) |
| 1956 | 24.9 mm (1.0 in) |
| 1957 | 51.1 mm (2.0 in) |
| 1958 | 56.1 mm (2.2 in) |
| 1959 | 35.1 mm (1.4 in) |
| 1960 | 57.2 mm (2.3 in) |
| 1961 | 36.3 mm (1.4 in) |
| 1962 | 43.7 mm (1.7 in) |
| 1963 | 46.2 mm (1.8 in) |
| 1964 | 39.4 mm (1.6 in) |
| 1965 | 56.4 mm (2.2 in) |
| 1966 | 44.7 mm (1.8 in) |
| 1967 | 24.1 mm (0.9 in) |
| 1968 | 58.9 mm (2.3 in) |
| 1969 | 42.4 mm (1.7 in) |
| 1970 | 48.5 mm (1.9 in) |
| 1971 | 29.2 mm (1.1 in) |
| 1972 | 50.8 mm (2.0 in) |
| 1973 | 35.1 mm (1.4 in) |
| 1974 | 67.3 mm (2.6 in) |
| 1975 | 106.7 mm (4.2 in) |
| 1976 | 58.4 mm (2.3 in) |
| 1977 | 78.7 mm (3.1 in) |
| 1978 | 21.6 mm (0.9 in) |
| 1979 | 50.0 mm (2.0 in) |
| 1980 | 63.5 mm (2.5 in) |
| 1981 | 35.3 mm (1.4 in) |
| 1982 | 37.8 mm (1.5 in) |
| 1983 | 30.7 mm (1.2 in) |
| 1984 | 34.5 mm (1.4 in) |
| 1985 | 56.4 mm (2.2 in) |
| 1986 | 38.6 mm (1.5 in) |
| 1987 | 34.0 mm (1.3 in) |
| 1988 | 63.0 mm (2.5 in) |
| 1989 | 51.6 mm (2.0 in) |
| 1990 | 33.5 mm (1.3 in) |
| 1991 | 40.6 mm (1.6 in) |
| 1992 | 44.5 mm (1.8 in) |
| 1993 | 57.4 mm (2.3 in) |
| 1994 | 53.3 mm (2.1 in) |
| 1995 | 44.5 mm (1.8 in) |
| 1996 | 100.8 mm (4.0 in) |
| 1997 | 36.3 mm (1.4 in) |
| 1998 | 86.4 mm (3.4 in) |
| 1999 | 36.6 mm (1.4 in) |
| 2000 | 43.7 mm (1.7 in) |
| 2001 | 108.2 mm (4.3 in) |
| 2002 | 31.2 mm (1.2 in) |
| 2003 | 31.0 mm (1.2 in) |
| 2004 | 31.8 mm (1.3 in) |
| 2005 | 48.8 mm (1.9 in) |
| 2006 | 38.1 mm (1.5 in) |
| 2007 | 36.8 mm (1.4 in) |
| 2008 | 76.2 mm (3.0 in) |
| 2009 | 58.4 mm (2.3 in) |
| 2010 | 44.5 mm (1.8 in) |
| 2011 | 73.7 mm (2.9 in) |
| 2012 | 30.5 mm (1.2 in) |
| 2013 | 58.4 mm (2.3 in) |
| 2014 | 99.1 mm (3.9 in) |
| 2015 | 50.8 mm (2.0 in) |
| 2016 | 49.0 mm (1.9 in) |
| 2017 | 8.9 mm (0.35 in) |
| 2020 | 43.9 mm (1.7 in) |
| 2021 | 73.7 mm (2.9 in) |
| 2022 | 73.7 mm (2.9 in) |
| 2023 | 38.9 mm (1.5 in) |
| 2024 | 53.3 mm (2.1 in) |
| 2025 | 33.5 mm (1.3 in) |
| 2026 | 55.9 mm (2.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1949 | 77.4 mm (3.0 in) |
| 1950 | 34.5 mm (1.4 in) |
| 1951 | 63.0 mm (2.5 in) |
| 1952 | 39.4 mm (1.6 in) |
| 1953 | 36.3 mm (1.4 in) |
| 1954 | 34.0 mm (1.3 in) |
| 1955 | 50.4 mm (2.0 in) |
| 1956 | 40.4 mm (1.6 in) |
| 1957 | 63.7 mm (2.5 in) |
| 1958 | 66.0 mm (2.6 in) |
| 1959 | 47.8 mm (1.9 in) |
| 1960 | 96.3 mm (3.8 in) |
| 1961 | 49.6 mm (2.0 in) |
| 1962 | 67.6 mm (2.7 in) |
| 1963 | 59.7 mm (2.4 in) |
| 1964 | 62.7 mm (2.5 in) |
| 1965 | 106.7 mm (4.2 in) |
| 1966 | 51.5 mm (2.0 in) |
| 1967 | 54.1 mm (2.1 in) |
| 1968 | 66.5 mm (2.6 in) |
| 1969 | 59.8 mm (2.4 in) |
| 1970 | 56.9 mm (2.2 in) |
| 1971 | 49.3 mm (1.9 in) |
| 1972 | 91.4 mm (3.6 in) |
| 1973 | 63.8 mm (2.5 in) |
| 1974 | 97.7 mm (3.8 in) |
| 1975 | 148.6 mm (5.9 in) |
| 1976 | 79.0 mm (3.1 in) |
| 1977 | 97.0 mm (3.8 in) |
| 1978 | 37.3 mm (1.5 in) |
| 1979 | 51.3 mm (2.0 in) |
| 1980 | 84.3 mm (3.3 in) |
| 1981 | 67.6 mm (2.7 in) |
| 1982 | 72.8 mm (2.9 in) |
| 1983 | 73.7 mm (2.9 in) |
| 1984 | 54.1 mm (2.1 in) |
| 1985 | 73.7 mm (2.9 in) |
| 1986 | 47.0 mm (1.9 in) |
| 1987 | 21.4 mm (0.8 in) |
| 1988 | 71.4 mm (2.8 in) |
| 1989 | 73.2 mm (2.9 in) |
| 1990 | 34.5 mm (1.4 in) |
| 1991 | 75.1 mm (3.0 in) |
| 1992 | 80.8 mm (3.2 in) |
| 1993 | 61.5 mm (2.4 in) |
| 1994 | 53.3 mm (2.1 in) |
| 1995 | 88.5 mm (3.5 in) |
| 1996 | 132.0 mm (5.2 in) |
| 1997 | 51.6 mm (2.0 in) |
| 1998 | 99.9 mm (3.9 in) |
| 1999 | 49.0 mm (1.9 in) |
| 2000 | 43.7 mm (1.7 in) |
| 2001 | 110.2 mm (4.3 in) |
| 2002 | 67.0 mm (2.6 in) |
| 2003 | 44.5 mm (1.8 in) |
| 2004 | 57.7 mm (2.3 in) |
| 2005 | 98.3 mm (3.9 in) |
| 2006 | 52.6 mm (2.1 in) |
| 2007 | 57.1 mm (2.2 in) |
| 2008 | 81.8 mm (3.2 in) |
| 2009 | 74.2 mm (2.9 in) |
| 2010 | 76.3 mm (3.0 in) |
| 2011 | 117.1 mm (4.6 in) |
| 2012 | 50.6 mm (2.0 in) |
| 2013 | 81.8 mm (3.2 in) |
| 2014 | 109.3 mm (4.3 in) |
| 2015 | 111.0 mm (4.4 in) |
| 2016 | 49.0 mm (1.9 in) |
| 2017 | 9.4 mm (0.37 in) |
| 2020 | 50.8 mm (2.0 in) |
| 2021 | 88.9 mm (3.5 in) |
| 2022 | 114.4 mm (4.5 in) |
| 2023 | 77.7 mm (3.1 in) |
| 2024 | 78.7 mm (3.1 in) |
| 2025 | 57.4 mm (2.3 in) |
| 2026 | 59.4 mm (2.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1949 | 42 days |
| 1950 | 88 days |
| 1951 | 43 days |
| 1952 | 51 days |
| 1953 | 61 days |
| 1954 | 31 days |
| 1955 | 40 days |
| 1956 | 54 days |
| 1957 | 64 days |
| 1958 | 38 days |
| 1959 | 56 days |
| 1960 | 58 days |
| 1961 | 62 days |
| 1962 | 38 days |
| 1963 | 36 days |
| 1964 | 38 days |
| 1965 | 52 days |
| 1966 | 51 days |
| 1967 | 50 days |
| 1968 | 51 days |
| 1969 | 27 days |
| 1970 | 50 days |
| 1971 | 34 days |
| 1972 | 57 days |
| 1973 | 33 days |
| 1974 | 37 days |
| 1975 | 38 days |
| 1976 | 30 days |
| 1977 | 43 days |
| 1978 | 33 days |
| 1979 | 33 days |
| 1980 | 60 days |
| 1981 | 31 days |
| 1982 | 69 days |
| 1983 | 28 days |
| 1984 | 24 days |
| 1985 | 21 days |
| 1986 | 35 days |
| 1987 | 42 days |
| 1988 | 41 days |
| 1989 | 21 days |
| 1990 | 33 days |
| 1991 | 27 days |
| 1992 | 42 days |
| 1993 | 29 days |
| 1994 | 26 days |
| 1995 | 34 days |
| 1996 | 81 days |
| 1997 | 33 days |
| 1998 | 28 days |
| 1999 | 41 days |
| 2000 | 48 days |
| 2001 | 23 days |
| 2002 | 61 days |
| 2003 | 51 days |
| 2004 | 37 days |
| 2005 | 28 days |
| 2006 | 34 days |
| 2007 | 31 days |
| 2008 | 33 days |
| 2009 | 40 days |
| 2010 | 56 days |
| 2011 | 28 days |
| 2012 | 58 days |
| 2013 | 46 days |
| 2014 | 31 days |
| 2015 | 57 days |
| 2016 | 45 days |
| 2017 | 38 days |
| 2020 | 49 days |
| 2021 | 79 days |
| 2022 | 80 days |
| 2023 | 80 days |
| 2024 | 34 days |
| 2025 | 29 days |
| 2026 | 71 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
54 years with a frostAcross 54 years with a frost, the median last spring frost at Bonny Dam 2NE falls on 4 May and the median first autumn frost on 8 October, which leaves a median of 159 days between them.
Fitted over all years, the growing season changes by +1.1 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1975 to 2023) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 4 May | n/a | 7 May | n/a | -0.2 days per decade |
| First autumn frost | 8 October | n/a | 11 October | n/a | +0.8 days per decade |
| Growing days | 159 days | n/a | 158 days | n/a | +1.1 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
63 years, 1950 to 2025A day with at least 43.3 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 119.9 mm (4.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 43.3 mm (1.7 in) | |
| 5 years | 60.9 mm (2.4 in) | |
| 10 years | 73.7 mm (2.9 in) | |
| 25 years | 91.1 mm (3.6 in) | |
| 50 years | 105.1 mm (4.1 in) | |
| 100 years | 119.9 mm (4.7 in) | Longer than the 63 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, 63 years of values from 1950 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: 108.2 mm (4.3 in) in 2001; 106.7 mm (4.2 in) in 1975; 99.1 mm (3.9 in) in 2014.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2001 to 2023 against 1961 to 1990Over 2001 to 2023, Bonny Dam 2NE had a mean temperature of 10.9 C (51.5 F) and 440.2 mm (17.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Winona (United States, 100 km away), Kingsley Dam (United States, 177 km away) and Imperial (United States, 103 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Winona | United States | 100 km (62 mi) | 11.0 C (51.9 F) | 461.9 mm (18.2 in) | 0.75 |
| Kingsley Dam | United States | 177 km (110 mi) | 10.5 C (50.8 F) | 474.1 mm (18.7 in) | 0.92 |
| Imperial | United States | 103 km (64 mi) | 10.6 C (51.1 F) | 488.9 mm (19.2 in) | 0.92 |
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).