Nimrod Dam Weather Records (USC00035200)
Record envelope, standing records and threshold days for Nimrod Dam (USC00035200), Arkansas, United States, with 88 years of record.
Key Facts for Nimrod Dam
- Nimrod Dam (USC00035200) is a weather station in Arkansas, United States at 34.95 latitude and -93.16 longitude, 147 m (483 ft) above sea level.
- The station reports from 1939 to 2026, 88 years of record.
- 1,464 records set at Nimrod Dam still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Nimrod Dam tied a daily record high maximum temperature of 36.7 C (98.1 F) on 19 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Arkansas, United States, 34.95 latitude, -93.16 longitude.
- Elevation: 147 m (483 ft).
- Period of record: 1939 to 2026, 88 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 | 27.8 C (82.0 F) | -23.9 C (-11.0 F) | 24.4 C (75.9 F) | -12.2 C (10.0 F) |
| Feb | 30.6 C (87.1 F) | -22.8 C (-9.0 F) | 27.2 C (81.0 F) | -11.1 C (12.0 F) |
| Mar | 33.3 C (91.9 F) | -12.8 C (9.0 F) | 33.3 C (91.9 F) | -4.4 C (24.1 F) |
| Apr | 34.4 C (93.9 F) | -3.9 C (25.0 F) | 30.0 C (86.0 F) | 2.8 C (37.0 F) |
| May | 36.7 C (98.1 F) | 1.1 C (34.0 F) | 31.7 C (89.1 F) | 4.4 C (39.9 F) |
| Jun | 41.7 C (107.1 F) | 7.2 C (45.0 F) | 34.4 C (93.9 F) | 17.2 C (63.0 F) |
| Jul | 43.9 C (111.0 F) | 8.3 C (46.9 F) | 38.9 C (102.0 F) | 18.9 C (66.0 F) |
| Aug | 44.4 C (111.9 F) | 6.1 C (43.0 F) | 41.1 C (106.0 F) | 17.8 C (64.0 F) |
| Sep | 42.8 C (109.0 F) | 2.2 C (36.0 F) | 40.6 C (105.1 F) | 12.2 C (54.0 F) |
| Oct | 38.9 C (102.0 F) | -6.7 C (19.9 F) | 35.0 C (95.0 F) | 10.0 C (50.0 F) |
| Nov | 31.1 C (88.0 F) | -11.7 C (10.9 F) | n/a | n/a |
| Dec | 27.2 C (81.0 F) | -19.4 C (-2.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1942 | 10 |
| 1943 | 43 |
| 1944 | 15 |
| 1945 | 16 |
| 1946 | 12 |
| 1947 | 22 |
| 1948 | 24 |
| 1949 | 12 |
| 1950 | 28 |
| 1951 | 30 |
| 1952 | 31 |
| 1953 | 41 |
| 1954 | 41 |
| 1955 | 29 |
| 1956 | 20 |
| 1957 | 11 |
| 1958 | 16 |
| 1959 | 18 |
| 1960 | 11 |
| 1961 | 22 |
| 1962 | 28 |
| 1963 | 33 |
| 1964 | 24 |
| 1965 | 23 |
| 1966 | 20 |
| 1967 | 21 |
| 1968 | 10 |
| 1969 | 7 |
| 1970 | 18 |
| 1971 | 9 |
| 1972 | 12 |
| 1973 | 5 |
| 1974 | 16 |
| 1975 | 9 |
| 1976 | 25 |
| 1977 | 10 |
| 1978 | 11 |
| 1979 | 13 |
| 1980 | 18 |
| 1981 | 24 |
| 1982 | 17 |
| 1983 | 17 |
| 1984 | 15 |
| 1985 | 16 |
| 1986 | 22 |
| 1987 | 14 |
| 1988 | 25 |
| 1989 | 38 |
| 1990 | 11 |
| 1991 | 11 |
| 1992 | 11 |
| 1993 | 14 |
| 1994 | 13 |
| 1995 | 15 |
| 1996 | 20 |
| 1997 | 13 |
| 1998 | 13 |
| 1999 | 3 |
| 2000 | 24 |
| 2001 | 9 |
| 2002 | 8 |
| 2003 | 10 |
| 2004 | 13 |
| 2005 | 13 |
| 2006 | 20 |
| 2007 | 8 |
| 2008 | 9 |
| 2009 | 16 |
| 2010 | 12 |
| 2011 | 27 |
| 2012 | 32 |
| 2013 | 14 |
| 2014 | 10 |
| 2015 | 2 |
| 2016 | 20 |
| 2017 | 15 |
| 2018 | 19 |
| 2019 | 13 |
| 2020 | 12 |
| 2021 | 17 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 16 |
| 2025 | 19 |
| 2026 | 14 |
All-Time Record Progression
7 new records| Date | Kind | Detail |
|---|---|---|
| 1982-12-03 | Record daily precipitation | Record daily precipitation 264.2 mm (10.4 in) |
| 1985-01-21 | Record low maximum temperature | Record low maximum temperature -11.1 C (12.0 F) |
| 1988-01-08 | Record snow depth | Record snow depth 38.1 cm (15.0 in) |
| 1998-07-08 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
| 2011-06-28 | Record high minimum temperature | Record high minimum temperature 27.8 C (82.0 F) |
| 2011-08-04 | Record high maximum temperature | Record high maximum temperature 44.4 C (111.9 F) |
| 2011-08-07 | Record high minimum temperature | Record high minimum temperature 28.3 C (82.9 F) |
Wettest Day of Each Month
Dec: 264.2 mm (10.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 104.1 mm (4.1 in) | 29 January 1956 |
| Feb | 113.0 mm (4.4 in) | 21 February 1945 |
| Mar | 102.9 mm (4.1 in) | 30 March 1945 |
| Apr | 103.1 mm (4.1 in) | 4 April 1997 |
| May | 153.4 mm (6.0 in) | 11 May 2015 |
| Jun | 119.4 mm (4.7 in) | 11 June 2010 |
| Jul | 121.9 mm (4.8 in) | 9 July 1956 |
| Aug | 124.5 mm (4.9 in) | 13 August 1957 |
| Sep | 160.5 mm (6.3 in) | 3 September 2008 |
| Oct | 130.8 mm (5.1 in) | 20 October 1984 |
| Nov | 196.9 mm (7.8 in) | 27 November 1985 |
| Dec | 264.2 mm (10.4 in) | 3 December 1982 |
Period of Record Coverage
1942 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1942 | 213 | 58% | No |
| 1943 | 356 | 98% | Yes |
| 1944 | 364 | 99% | Yes |
| 1945 | 341 | 93% | Yes |
| 1946 | 351 | 96% | Yes |
| 1947 | 348 | 95% | Yes |
| 1948 | 365 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 329 | 90% | Yes |
| 1951 | 343 | 94% | Yes |
| 1952 | 341 | 93% | Yes |
| 1953 | 325 | 89% | No |
| 1954 | 362 | 99% | Yes |
| 1955 | 356 | 98% | Yes |
| 1956 | 355 | 97% | Yes |
| 1957 | 363 | 99% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 359 | 98% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 334 | 92% | Yes |
| 1967 | 275 | 75% | No |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 324 | 89% | No |
| 1979 | 363 | 99% | Yes |
| 1980 | 334 | 91% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 362 | 99% | Yes |
| 1983 | 362 | 99% | Yes |
| 1984 | 362 | 99% | Yes |
| 1985 | 364 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 363 | 99% | Yes |
| 1990 | 362 | 99% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 361 | 99% | Yes |
| 1994 | 362 | 99% | Yes |
| 1995 | 352 | 96% | Yes |
| 1996 | 359 | 98% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 362 | 99% | Yes |
| 1999 | 359 | 98% | Yes |
| 2000 | 359 | 98% | Yes |
| 2001 | 362 | 99% | Yes |
| 2002 | 357 | 98% | Yes |
| 2003 | 362 | 99% | Yes |
| 2004 | 363 | 99% | Yes |
| 2005 | 360 | 99% | Yes |
| 2006 | 362 | 99% | Yes |
| 2007 | 357 | 98% | Yes |
| 2008 | 360 | 98% | Yes |
| 2009 | 355 | 97% | Yes |
| 2010 | 362 | 99% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 359 | 98% | Yes |
| 2013 | 360 | 99% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 362 | 99% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 364 | 100% | Yes |
| 2018 | 359 | 98% | Yes |
| 2019 | 230 | 63% | No |
| 2020 | 335 | 92% | Yes |
| 2021 | 343 | 94% | Yes |
| 2022 | 338 | 93% | Yes |
| 2023 | 289 | 79% | No |
| 2024 | 302 | 83% | No |
| 2025 | 304 | 83% | No |
| 2026 | 240 | 66% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 19 September 2026 | Nimrod Dam, US | daily high max (Tie, Provisional) | 36.7 C (98.1 F) | tie | 7 years | 2 of 100 (Routine) |
| 17 September 2026 | Nimrod Dam, US | daily high min (Provisional) | 23.9 C (75.0 F) | 2.2 C (4.0 F) | 60 years | 31 of 100 (Routine) |
| 16 September 2026 | Nimrod Dam, US | daily high min (Provisional) | 23.3 C (73.9 F) | 1.6 C (2.9 F) | 44 years | 24 of 100 (Routine) |
| 12 September 2026 | Nimrod Dam, US | daily high max (Provisional) | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 63 years | 27 of 100 (Routine) |
| 11 September 2026 | Nimrod Dam, US | daily high min (Tie, Provisional) | 22.8 C (73.0 F) | tie | 40 years | 5 of 100 (Routine) |
| 11 September 2026 | Nimrod Dam, US | daily high max (Tie, Provisional) | 37.8 C (100.0 F) | tie | 12 years | 2 of 100 (Routine) |
| 10 September 2026 | Nimrod Dam, US | daily high min (Provisional) | 25.0 C (77.0 F) | 1.7 C (3.1 F) | 80 years | 35 of 100 (Notable) |
| 10 September 2026 | Nimrod Dam, US | daily high max (Provisional) | 38.9 C (102.0 F) | 1.1 C (2.0 F) | 12 years | 13 of 100 (Routine) |
| 9 September 2026 | Nimrod Dam, US | daily high max (Provisional) | 39.4 C (102.9 F) | 1.6 C (2.9 F) | 71 years | 32 of 100 (Routine) |
| 8 September 2026 | Nimrod Dam, US | daily high max (Provisional) | 40.6 C (105.1 F) | 0.6 C (1.1 F) | 79 years | 32 of 100 (Routine) |
| 6 September 2026 | Nimrod Dam, US | daily high min (Tie, Provisional) | 22.8 C (73.0 F) | tie | 40 years | 5 of 100 (Routine) |
| 23 August 2026 | Nimrod Dam, US | daily high max (Tie, Provisional) | 39.4 C (102.9 F) | tie | 25 years | 3 of 100 (Routine) |
| 20 August 2026 | Nimrod Dam, US | daily high max (Provisional) | 41.1 C (106.0 F) | 0.5 C (0.9 F) | 72 years | 30 of 100 (Routine) |
| 20 August 2026 | Nimrod Dam, US | daily high min (Tie, Provisional) | 24.4 C (75.9 F) | tie | 8 years | 2 of 100 (Routine) |
| 19 August 2026 | Nimrod Dam, US | daily high max (Tie, Provisional) | 40.6 C (105.1 F) | tie | 72 years | 7 of 100 (Routine) |
| 14 August 2026 | Nimrod Dam, US | daily high min (Tie) | 25.6 C (78.1 F) | tie | 83 years | 8 of 100 (Routine) |
| 29 July 2026 | Nimrod Dam, US | daily high min | 24.4 C (75.9 F) | 0.5 C (0.9 F) | 32 years | 18 of 100 (Routine) |
| 16 July 2026 | Nimrod Dam, US | daily rain | 65.3 mm (2.6 in) | 21.1 mm (0.8 in) | 36 years | 32 of 100 (Routine) |
| 29 June 2026 | Nimrod Dam, US | daily high min (Tie) | 25.0 C (77.0 F) | tie | 45 years | 5 of 100 (Routine) |
| 14 June 2026 | Nimrod Dam, US | daily low max | 22.8 C (73.0 F) | 1.6 C (2.9 F) | 69 years | 32 of 100 (Routine) |
Climate Trend
64 complete years, 1943 to 2022| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1943 | 17.0 C | +1.11 C |
| 1944 | 16.8 C | +0.96 C |
| 1945 | 15.8 C | -0.06 C |
| 1946 | 16.9 C | +1.04 C |
| 1947 | 16.0 C | +0.13 C |
| 1948 | 15.5 C | -0.36 C |
| 1954 | 17.4 C | +1.56 C |
| 1955 | 16.4 C | +0.48 C |
| 1956 | 16.7 C | +0.84 C |
| 1957 | 15.9 C | +0.06 C |
| 1958 | 15.0 C | -0.93 C |
| 1959 | 15.6 C | -0.33 C |
| 1960 | 15.1 C | -0.75 C |
| 1961 | 15.2 C | -0.67 C |
| 1962 | 15.9 C | -0.03 C |
| 1963 | 15.9 C | +0.06 C |
| 1964 | 15.8 C | -0.04 C |
| 1965 | 16.1 C | +0.25 C |
| 1968 | 14.4 C | -1.51 C |
| 1969 | 15.0 C | -0.87 C |
| 1970 | 14.8 C | -1.07 C |
| 1971 | 15.3 C | -0.62 C |
| 1972 | 15.1 C | -0.81 C |
| 1973 | 15.1 C | -0.83 C |
| 1974 | 14.8 C | -1.10 C |
| 1975 | 14.6 C | -1.24 C |
| 1976 | 14.3 C | -1.55 C |
| 1977 | 15.5 C | -0.41 C |
| 1979 | 13.5 C | -2.37 C |
| 1981 | 14.5 C | -1.39 C |
| 1987 | 15.0 C | -0.93 C |
| 1988 | 14.2 C | -1.65 C |
| 1989 | 15.0 C | -0.84 C |
| 1990 | 16.4 C | +0.49 C |
| 1991 | 16.0 C | +0.08 C |
| 1992 | 15.2 C | -0.69 C |
| 1993 | 15.0 C | -0.87 C |
| 1994 | 15.4 C | -0.50 C |
| 1995 | 15.0 C | -0.84 C |
| 1996 | 15.1 C | -0.80 C |
| 1997 | 15.5 C | -0.40 C |
| 1998 | 17.3 C | +1.40 C |
| 1999 | 16.6 C | +0.71 C |
| 2000 | 16.4 C | +0.48 C |
| 2001 | 16.3 C | +0.42 C |
| 2002 | 15.8 C | -0.13 C |
| 2003 | 15.7 C | -0.23 C |
| 2004 | 16.0 C | +0.14 C |
| 2005 | 16.6 C | +0.73 C |
| 2006 | 16.8 C | +0.95 C |
| 2007 | 16.8 C | +0.88 C |
| 2008 | 15.8 C | -0.08 C |
| 2009 | 15.7 C | -0.19 C |
| 2010 | 16.8 C | +0.87 C |
| 2011 | 17.2 C | +1.35 C |
| 2012 | 18.5 C | +2.62 C |
| 2013 | 16.1 C | +0.17 C |
| 2014 | 15.7 C | -0.20 C |
| 2015 | 17.1 C | +1.19 C |
| 2016 | 17.9 C | +2.06 C |
| 2017 | 18.2 C | +2.31 C |
| 2018 | 17.3 C | +1.42 C |
| 2021 | 16.2 C | +0.31 C |
| 2022 | 16.3 C | +0.44 C |
The annual mean temperature here has risen by 0.12 C (0.02 to 0.23) per decade over 1943 to 2022. In Fahrenheit: 0.22 F (0.03 to 0.41) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.12 C (0.02 to 0.23) per decade | 0.22 F (0.03 to 0.41) per decade | 1943 to 2022 | 64 | Rise |
| Mean daily maximum | 0.00 C (-0.13 to 0.12) per decade | -0.01 F (-0.23 to 0.21) per decade | 1943 to 2022 | 64 | Not clearly different from zero |
| Mean daily minimum | 0.3 C (0.1 to 0.4) per decade | 0.5 F (0.3 to 0.7) per decade | 1943 to 2022 | 64 | 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
1939 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 44.4 C (111.9 F) | 2011 | 38.9 C (102.0 F) | 85 |
| Coldest night (TNn) | -23.9 C (-11.0 F) | 1962 | -12.8 C (9.0 F) | 85 |
| Wettest day (Rx1day) | 264.2 mm (10.4 in) | 1982 | 82.8 mm (3.3 in) | 87 |
| Wettest five days (Rx5day) | 308.9 mm (12.2 in) | 1982 | 132.6 mm (5.2 in) | 87 |
| Longest dry spell (CDD) | 40 days | 1947 | 21 days | 87 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1939 | n/a |
| 1940 | n/a |
| 1942 | 39.4 C (102.9 F) |
| 1943 | 43.3 C (109.9 F) |
| 1944 | 40.6 C (105.1 F) |
| 1945 | 38.9 C (102.0 F) |
| 1946 | 41.1 C (106.0 F) |
| 1947 | 41.7 C (107.1 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 38.3 C (100.9 F) |
| 1950 | 32.8 C (91.0 F) |
| 1951 | 40.6 C (105.1 F) |
| 1952 | 41.1 C (106.0 F) |
| 1953 | 40.6 C (105.1 F) |
| 1954 | 43.9 C (111.0 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 42.8 C (109.0 F) |
| 1957 | 38.9 C (102.0 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 37.2 C (99.0 F) |
| 1960 | 38.3 C (100.9 F) |
| 1961 | 37.2 C (99.0 F) |
| 1962 | 41.7 C (107.1 F) |
| 1963 | 41.1 C (106.0 F) |
| 1964 | 43.3 C (109.9 F) |
| 1965 | 38.3 C (100.9 F) |
| 1966 | 41.1 C (106.0 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 35.0 C (95.0 F) |
| 1969 | 40.0 C (104.0 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 39.4 C (102.9 F) |
| 1972 | 38.9 C (102.0 F) |
| 1973 | 36.1 C (97.0 F) |
| 1974 | 40.0 C (104.0 F) |
| 1975 | 37.2 C (99.0 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 39.4 C (102.9 F) |
| 1979 | 36.1 C (97.0 F) |
| 1980 | 41.1 C (106.0 F) |
| 1981 | 38.3 C (100.9 F) |
| 1982 | 37.2 C (99.0 F) |
| 1983 | 39.4 C (102.9 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 39.4 C (102.9 F) |
| 1986 | 42.8 C (109.0 F) |
| 1987 | 39.4 C (102.9 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 36.7 C (98.1 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 37.8 C (100.0 F) |
| 1992 | 35.0 C (95.0 F) |
| 1993 | 39.4 C (102.9 F) |
| 1994 | 36.1 C (97.0 F) |
| 1995 | 38.9 C (102.0 F) |
| 1996 | 37.2 C (99.0 F) |
| 1997 | 40.0 C (104.0 F) |
| 1998 | 40.6 C (105.1 F) |
| 1999 | 40.6 C (105.1 F) |
| 2000 | 42.8 C (109.0 F) |
| 2001 | 38.3 C (100.9 F) |
| 2002 | 37.2 C (99.0 F) |
| 2003 | 38.3 C (100.9 F) |
| 2004 | 36.1 C (97.0 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 41.1 C (106.0 F) |
| 2007 | 42.2 C (108.0 F) |
| 2008 | 40.0 C (104.0 F) |
| 2009 | 38.3 C (100.9 F) |
| 2010 | 40.6 C (105.1 F) |
| 2011 | 44.4 C (111.9 F) |
| 2012 | 42.2 C (108.0 F) |
| 2013 | 38.3 C (100.9 F) |
| 2014 | 37.2 C (99.0 F) |
| 2015 | 39.4 C (102.9 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 37.8 C (100.0 F) |
| 2018 | 39.4 C (102.9 F) |
| 2019 | 37.8 C (100.0 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 38.9 C (102.0 F) |
| 2022 | 40.6 C (105.1 F) |
| 2023 | 41.1 C (106.0 F) |
| 2024 | 40.6 C (105.1 F) |
| 2025 | 39.4 C (102.9 F) |
| 2026 | 41.1 C (106.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1939 | n/a |
| 1940 | n/a |
| 1942 | -5.6 C (21.9 F) |
| 1943 | -16.7 C (1.9 F) |
| 1944 | -15.0 C (5.0 F) |
| 1945 | -12.8 C (9.0 F) |
| 1946 | -11.7 C (10.9 F) |
| 1947 | -13.9 C (7.0 F) |
| 1948 | -15.6 C (3.9 F) |
| 1949 | -13.9 C (7.0 F) |
| 1950 | -14.4 C (6.1 F) |
| 1951 | -22.8 C (-9.0 F) |
| 1952 | -10.6 C (12.9 F) |
| 1953 | -11.1 C (12.0 F) |
| 1954 | -10.6 C (12.9 F) |
| 1955 | -13.3 C (8.1 F) |
| 1956 | -11.1 C (12.0 F) |
| 1957 | -13.9 C (7.0 F) |
| 1958 | -16.7 C (1.9 F) |
| 1959 | -17.2 C (1.0 F) |
| 1960 | -12.8 C (9.0 F) |
| 1961 | -11.7 C (10.9 F) |
| 1962 | -23.9 C (-11.0 F) |
| 1963 | -18.9 C (-2.0 F) |
| 1964 | -16.1 C (3.0 F) |
| 1965 | -12.8 C (9.0 F) |
| 1966 | -17.8 C (0.0 F) |
| 1967 | -8.3 C (17.1 F) |
| 1968 | -13.9 C (7.0 F) |
| 1969 | -11.1 C (12.0 F) |
| 1970 | -16.1 C (3.0 F) |
| 1971 | -13.3 C (8.1 F) |
| 1972 | -14.4 C (6.1 F) |
| 1973 | -12.8 C (9.0 F) |
| 1974 | -13.3 C (8.1 F) |
| 1975 | -11.7 C (10.9 F) |
| 1976 | -15.0 C (5.0 F) |
| 1977 | -18.9 C (-2.0 F) |
| 1978 | -13.3 C (8.1 F) |
| 1979 | -15.6 C (3.9 F) |
| 1980 | -13.3 C (8.1 F) |
| 1981 | -18.3 C (-0.9 F) |
| 1982 | -17.8 C (0.0 F) |
| 1983 | -19.4 C (-2.9 F) |
| 1984 | -17.2 C (1.0 F) |
| 1985 | -18.3 C (-0.9 F) |
| 1986 | -11.1 C (12.0 F) |
| 1987 | -10.0 C (14.0 F) |
| 1988 | -15.0 C (5.0 F) |
| 1989 | -19.4 C (-2.9 F) |
| 1990 | -13.3 C (8.1 F) |
| 1991 | -12.2 C (10.0 F) |
| 1992 | -11.1 C (12.0 F) |
| 1993 | -9.4 C (15.1 F) |
| 1994 | -12.2 C (10.0 F) |
| 1995 | -12.8 C (9.0 F) |
| 1996 | -16.7 C (1.9 F) |
| 1997 | -14.4 C (6.1 F) |
| 1998 | -9.4 C (15.1 F) |
| 1999 | -11.7 C (10.9 F) |
| 2000 | -11.7 C (10.9 F) |
| 2001 | -12.8 C (9.0 F) |
| 2002 | -11.7 C (10.9 F) |
| 2003 | -12.2 C (10.0 F) |
| 2004 | -13.3 C (8.1 F) |
| 2005 | -12.2 C (10.0 F) |
| 2006 | -10.6 C (12.9 F) |
| 2007 | -9.4 C (15.1 F) |
| 2008 | -10.0 C (14.0 F) |
| 2009 | -7.8 C (18.0 F) |
| 2010 | -12.2 C (10.0 F) |
| 2011 | -17.2 C (1.0 F) |
| 2012 | -7.8 C (18.0 F) |
| 2013 | -6.7 C (19.9 F) |
| 2014 | -11.1 C (12.0 F) |
| 2015 | -12.8 C (9.0 F) |
| 2016 | -9.4 C (15.1 F) |
| 2017 | -10.0 C (14.0 F) |
| 2018 | -16.7 C (1.9 F) |
| 2019 | -10.0 C (14.0 F) |
| 2020 | -10.0 C (14.0 F) |
| 2021 | -22.8 C (-9.0 F) |
| 2022 | -17.8 C (0.0 F) |
| 2023 | -6.1 C (21.0 F) |
| 2024 | -17.2 C (1.0 F) |
| 2025 | -13.9 C (7.0 F) |
| 2026 | -12.2 C (10.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1939 | 22.9 mm (0.9 in) |
| 1940 | 38.9 mm (1.5 in) |
| 1942 | 74.7 mm (2.9 in) |
| 1943 | 53.8 mm (2.1 in) |
| 1944 | 81.5 mm (3.2 in) |
| 1945 | 113.0 mm (4.4 in) |
| 1946 | 91.4 mm (3.6 in) |
| 1947 | 57.2 mm (2.3 in) |
| 1948 | 67.1 mm (2.6 in) |
| 1949 | 93.7 mm (3.7 in) |
| 1950 | 82.8 mm (3.3 in) |
| 1951 | 87.6 mm (3.4 in) |
| 1952 | 120.9 mm (4.8 in) |
| 1953 | 59.7 mm (2.4 in) |
| 1954 | 107.7 mm (4.2 in) |
| 1955 | 57.2 mm (2.3 in) |
| 1956 | 121.9 mm (4.8 in) |
| 1957 | 124.5 mm (4.9 in) |
| 1958 | 89.4 mm (3.5 in) |
| 1959 | 81.3 mm (3.2 in) |
| 1960 | 90.9 mm (3.6 in) |
| 1961 | 62.2 mm (2.4 in) |
| 1962 | 47.0 mm (1.9 in) |
| 1963 | 97.8 mm (3.9 in) |
| 1964 | 91.4 mm (3.6 in) |
| 1965 | 142.2 mm (5.6 in) |
| 1966 | 82.6 mm (3.3 in) |
| 1967 | 80.8 mm (3.2 in) |
| 1968 | 111.8 mm (4.4 in) |
| 1969 | 104.1 mm (4.1 in) |
| 1970 | 60.5 mm (2.4 in) |
| 1971 | 109.7 mm (4.3 in) |
| 1972 | 64.8 mm (2.6 in) |
| 1973 | 83.8 mm (3.3 in) |
| 1974 | 50.8 mm (2.0 in) |
| 1975 | 61.7 mm (2.4 in) |
| 1976 | 40.6 mm (1.6 in) |
| 1977 | 95.3 mm (3.8 in) |
| 1978 | 97.8 mm (3.9 in) |
| 1979 | 59.9 mm (2.4 in) |
| 1980 | 82.6 mm (3.3 in) |
| 1981 | 54.6 mm (2.1 in) |
| 1982 | 264.2 mm (10.4 in) |
| 1983 | 86.9 mm (3.4 in) |
| 1984 | 130.8 mm (5.1 in) |
| 1985 | 196.9 mm (7.8 in) |
| 1986 | 81.3 mm (3.2 in) |
| 1987 | 88.9 mm (3.5 in) |
| 1988 | 67.3 mm (2.6 in) |
| 1989 | 77.5 mm (3.1 in) |
| 1990 | 122.4 mm (4.8 in) |
| 1991 | 91.4 mm (3.6 in) |
| 1992 | 67.1 mm (2.6 in) |
| 1993 | 102.9 mm (4.1 in) |
| 1994 | 71.1 mm (2.8 in) |
| 1995 | 79.2 mm (3.1 in) |
| 1996 | 130.0 mm (5.1 in) |
| 1997 | 103.1 mm (4.1 in) |
| 1998 | 120.1 mm (4.7 in) |
| 1999 | 78.2 mm (3.1 in) |
| 2000 | 55.9 mm (2.2 in) |
| 2001 | 126.0 mm (5.0 in) |
| 2002 | 57.2 mm (2.3 in) |
| 2003 | 120.1 mm (4.7 in) |
| 2004 | 69.3 mm (2.7 in) |
| 2005 | 90.2 mm (3.6 in) |
| 2006 | 73.7 mm (2.9 in) |
| 2007 | 80.0 mm (3.1 in) |
| 2008 | 160.5 mm (6.3 in) |
| 2009 | 101.6 mm (4.0 in) |
| 2010 | 119.4 mm (4.7 in) |
| 2011 | 115.1 mm (4.5 in) |
| 2012 | 84.3 mm (3.3 in) |
| 2013 | 104.1 mm (4.1 in) |
| 2014 | 76.2 mm (3.0 in) |
| 2015 | 238.8 mm (9.4 in) |
| 2016 | 50.8 mm (2.0 in) |
| 2017 | 96.0 mm (3.8 in) |
| 2018 | 150.1 mm (5.9 in) |
| 2019 | 71.4 mm (2.8 in) |
| 2020 | 83.1 mm (3.3 in) |
| 2021 | 59.2 mm (2.3 in) |
| 2022 | 75.7 mm (3.0 in) |
| 2023 | 80.5 mm (3.2 in) |
| 2024 | 70.1 mm (2.8 in) |
| 2025 | 64.3 mm (2.5 in) |
| 2026 | 65.3 mm (2.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1939 | 30.5 mm (1.2 in) |
| 1940 | 51.1 mm (2.0 in) |
| 1942 | 88.2 mm (3.5 in) |
| 1943 | 87.6 mm (3.4 in) |
| 1944 | 124.5 mm (4.9 in) |
| 1945 | 213.9 mm (8.4 in) |
| 1946 | 132.6 mm (5.2 in) |
| 1947 | 91.1 mm (3.6 in) |
| 1948 | 96.3 mm (3.8 in) |
| 1949 | 170.4 mm (6.7 in) |
| 1950 | 133.3 mm (5.2 in) |
| 1951 | 124.7 mm (4.9 in) |
| 1952 | 142.2 mm (5.6 in) |
| 1953 | 90.6 mm (3.6 in) |
| 1954 | 149.1 mm (5.9 in) |
| 1955 | 101.6 mm (4.0 in) |
| 1956 | 186.6 mm (7.3 in) |
| 1957 | 180.4 mm (7.1 in) |
| 1958 | 192.3 mm (7.6 in) |
| 1959 | 113.1 mm (4.5 in) |
| 1960 | 151.4 mm (6.0 in) |
| 1961 | 110.7 mm (4.4 in) |
| 1962 | 87.2 mm (3.4 in) |
| 1963 | 130.8 mm (5.1 in) |
| 1964 | 118.1 mm (4.6 in) |
| 1965 | 145.8 mm (5.7 in) |
| 1966 | 229.9 mm (9.1 in) |
| 1967 | 81.3 mm (3.2 in) |
| 1968 | 196.2 mm (7.7 in) |
| 1969 | 122.4 mm (4.8 in) |
| 1970 | 123.5 mm (4.9 in) |
| 1971 | 205.9 mm (8.1 in) |
| 1972 | 114.1 mm (4.5 in) |
| 1973 | 163.6 mm (6.4 in) |
| 1974 | 108.0 mm (4.3 in) |
| 1975 | 97.0 mm (3.8 in) |
| 1976 | 67.3 mm (2.6 in) |
| 1977 | 120.7 mm (4.8 in) |
| 1978 | 160.8 mm (6.3 in) |
| 1979 | 129.1 mm (5.1 in) |
| 1980 | 116.9 mm (4.6 in) |
| 1981 | 75.5 mm (3.0 in) |
| 1982 | 308.9 mm (12.2 in) |
| 1983 | 116.1 mm (4.6 in) |
| 1984 | 245.1 mm (9.6 in) |
| 1985 | 225.6 mm (8.9 in) |
| 1986 | 206.2 mm (8.1 in) |
| 1987 | 155.9 mm (6.1 in) |
| 1988 | 129.4 mm (5.1 in) |
| 1989 | 134.5 mm (5.3 in) |
| 1990 | 184.1 mm (7.2 in) |
| 1991 | 129.8 mm (5.1 in) |
| 1992 | 77.5 mm (3.1 in) |
| 1993 | 176.3 mm (6.9 in) |
| 1994 | 93.5 mm (3.7 in) |
| 1995 | 105.7 mm (4.2 in) |
| 1996 | 166.1 mm (6.5 in) |
| 1997 | 128.0 mm (5.0 in) |
| 1998 | 149.1 mm (5.9 in) |
| 1999 | 93.0 mm (3.7 in) |
| 2000 | 106.3 mm (4.2 in) |
| 2001 | 200.2 mm (7.9 in) |
| 2002 | 111.2 mm (4.4 in) |
| 2003 | 134.3 mm (5.3 in) |
| 2004 | 141.1 mm (5.6 in) |
| 2005 | 108.9 mm (4.3 in) |
| 2006 | 111.1 mm (4.4 in) |
| 2007 | 143.0 mm (5.6 in) |
| 2008 | 226.0 mm (8.9 in) |
| 2009 | 232.5 mm (9.2 in) |
| 2010 | 175.2 mm (6.9 in) |
| 2011 | 206.0 mm (8.1 in) |
| 2012 | 134.3 mm (5.3 in) |
| 2013 | 138.4 mm (5.4 in) |
| 2014 | 145.6 mm (5.7 in) |
| 2015 | 249.0 mm (9.8 in) |
| 2016 | 242.6 mm (9.6 in) |
| 2017 | 157.0 mm (6.2 in) |
| 2018 | 219.7 mm (8.6 in) |
| 2019 | 116.9 mm (4.6 in) |
| 2020 | 148.9 mm (5.9 in) |
| 2021 | 98.3 mm (3.9 in) |
| 2022 | 112.2 mm (4.4 in) |
| 2023 | 124.7 mm (4.9 in) |
| 2024 | 148.7 mm (5.9 in) |
| 2025 | 251.2 mm (9.9 in) |
| 2026 | 99.1 mm (3.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1939 | 21 days |
| 1940 | 15 days |
| 1942 | 14 days |
| 1943 | 28 days |
| 1944 | 25 days |
| 1945 | 16 days |
| 1946 | 18 days |
| 1947 | 40 days |
| 1948 | 12 days |
| 1949 | 25 days |
| 1950 | 25 days |
| 1951 | 21 days |
| 1952 | 31 days |
| 1953 | 30 days |
| 1954 | 24 days |
| 1955 | 27 days |
| 1956 | 30 days |
| 1957 | 22 days |
| 1958 | 22 days |
| 1959 | 20 days |
| 1960 | 16 days |
| 1961 | 20 days |
| 1962 | 23 days |
| 1963 | 21 days |
| 1964 | 30 days |
| 1965 | 35 days |
| 1966 | 20 days |
| 1967 | 19 days |
| 1968 | 19 days |
| 1969 | 26 days |
| 1970 | 25 days |
| 1971 | 26 days |
| 1972 | 21 days |
| 1973 | 15 days |
| 1974 | 36 days |
| 1975 | 14 days |
| 1976 | 19 days |
| 1977 | 16 days |
| 1978 | 20 days |
| 1979 | 30 days |
| 1980 | 20 days |
| 1981 | 27 days |
| 1982 | 17 days |
| 1983 | 28 days |
| 1984 | 16 days |
| 1985 | 32 days |
| 1986 | 20 days |
| 1987 | 17 days |
| 1988 | 13 days |
| 1989 | 18 days |
| 1990 | 18 days |
| 1991 | 16 days |
| 1992 | 18 days |
| 1993 | 27 days |
| 1994 | 20 days |
| 1995 | 23 days |
| 1996 | 25 days |
| 1997 | 17 days |
| 1998 | 15 days |
| 1999 | 24 days |
| 2000 | 21 days |
| 2001 | 22 days |
| 2002 | 22 days |
| 2003 | 33 days |
| 2004 | 13 days |
| 2005 | 18 days |
| 2006 | 17 days |
| 2007 | 28 days |
| 2008 | 20 days |
| 2009 | 21 days |
| 2010 | 24 days |
| 2011 | 26 days |
| 2012 | 20 days |
| 2013 | 29 days |
| 2014 | 22 days |
| 2015 | 31 days |
| 2016 | 32 days |
| 2017 | 20 days |
| 2018 | 17 days |
| 2019 | 13 days |
| 2020 | 28 days |
| 2021 | 12 days |
| 2022 | 20 days |
| 2023 | 16 days |
| 2024 | 35 days |
| 2025 | 23 days |
| 2026 | 16 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
64 years with a frostAcross 64 years with a frost, the median last spring frost at Nimrod Dam falls on 5 April and the median first autumn frost on 3 November, which leaves a median of 215 days between them.
In 1991 to 2022 the median growing season was 222 days. That is 14 days more than in 1943 to 1981.
Fitted over all years, the growing season changes by +3.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1943 to 1981) | Recent period (1991 to 2022) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 5 April | 7 April | 27 March | 11 days earlier | -2.2 days per decade |
| First autumn frost | 3 November | 30 October | 4 November | 5 days later | +1.5 days per decade |
| Growing days | 215 days | 208 days | 222 days | 14 days more | +3.8 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
76 years, 1943 to 2022A day with at least 85.3 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 231.3 mm (9.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 85.3 mm (3.4 in) | |
| 5 years | 116.6 mm (4.6 in) | |
| 10 years | 140.2 mm (5.5 in) | |
| 25 years | 173.5 mm (6.8 in) | |
| 50 years | 201.2 mm (7.9 in) | |
| 100 years | 231.3 mm (9.1 in) | Longer than the 76 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, 76 years of values from 1943 to 2022.
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: 264.2 mm (10.4 in) in 1982; 238.8 mm (9.4 in) in 2015; 196.9 mm (7.8 in) in 1985.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Nimrod Dam, at 2011. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2011 ran 0.5 C (1.0 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 2011 | +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
2006 to 2022 against 1961 to 1990Over 2006 to 2022, Nimrod Dam had a mean temperature of 16.8 C (62.3 F) and 1,370.9 mm (54.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Memphis Intl AP (United States, 289 km away), Clarksdale (United States, 253 km away) and Minter City (United States, 302 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Memphis Intl AP | United States | 289 km (180 mi) | 16.7 C (62.0 F) | 1,324.1 mm (52.1 in) | 0.56 |
| Clarksdale | United States | 253 km (157 mi) | 16.7 C (62.1 F) | 1,321.6 mm (52.0 in) | 0.63 |
| Minter City | United States | 302 km (188 mi) | 17.0 C (62.7 F) | 1,322.5 mm (52.1 in) | 0.66 |
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).