Stewart Mtn Dam Weather Records (USC00028214)
Record envelope, standing records and threshold days for Stewart Mtn Dam (USC00028214), Arizona, United States, with 88 years of record.
Key Facts for Stewart Mtn Dam
- Stewart Mtn Dam (USC00028214) is a weather station in Arizona, United States at 33.56 latitude and -111.54 longitude, 433 m (1,422 ft) above sea level.
- The station reports from 1939 to 2026, 88 years of record.
- 1,464 records set at Stewart Mtn Dam still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Stewart Mtn Dam tied a daily record high maximum temperature of 38.9 C (102.0 F) on 13 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Arizona, United States, 33.56 latitude, -111.54 longitude.
- Elevation: 433 m (1,422 ft).
- Period of record: 1939 to 2026, 88 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
9 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 31.7 C (89.1 F) | -8.3 C (17.1 F) | n/a | n/a |
| Feb | 32.2 C (90.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Mar | 37.2 C (99.0 F) | -5.6 C (21.9 F) | n/a | n/a |
| Apr | 40.0 C (104.0 F) | 0.0 C (32.0 F) | 32.8 C (91.0 F) | 12.2 C (54.0 F) |
| May | 42.8 C (109.0 F) | 2.2 C (36.0 F) | 42.2 C (108.0 F) | 11.1 C (52.0 F) |
| Jun | 48.9 C (120.0 F) | 5.6 C (42.1 F) | 43.3 C (109.9 F) | 18.9 C (66.0 F) |
| Jul | 48.3 C (118.9 F) | 15.0 C (59.0 F) | 44.4 C (111.9 F) | 16.1 C (61.0 F) |
| Aug | 46.1 C (115.0 F) | 13.3 C (55.9 F) | 46.1 C (115.0 F) | 23.3 C (73.9 F) |
| Sep | 44.4 C (111.9 F) | 7.8 C (46.0 F) | 46.1 C (115.0 F) | 19.4 C (66.9 F) |
| Oct | 41.7 C (107.1 F) | -1.1 C (30.0 F) | 40.0 C (104.0 F) | 17.2 C (63.0 F) |
| Nov | 36.7 C (98.1 F) | -4.4 C (24.1 F) | n/a | n/a |
| Dec | 29.4 C (84.9 F) | -7.8 C (18.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1961 | 10 |
| 1962 | 45 |
| 1963 | 30 |
| 1964 | 34 |
| 1965 | 40 |
| 1966 | 24 |
| 1967 | 22 |
| 1968 | 28 |
| 1969 | 21 |
| 1970 | 25 |
| 1971 | 54 |
| 1972 | 42 |
| 1973 | 30 |
| 1974 | 26 |
| 1975 | 29 |
| 1976 | 21 |
| 1977 | 23 |
| 1978 | 21 |
| 1979 | 31 |
| 1980 | 32 |
| 1981 | 24 |
| 1982 | 13 |
| 1983 | 24 |
| 1984 | 20 |
| 1985 | 29 |
| 1986 | 38 |
| 1987 | 52 |
| 1988 | 48 |
| 1989 | 32 |
| 1990 | 27 |
| 1991 | 25 |
| 1992 | 25 |
| 1993 | 18 |
| 1994 | 16 |
| 1995 | 16 |
| 1996 | 30 |
| 1997 | 11 |
| 1998 | 17 |
| 1999 | 27 |
| 2000 | 17 |
| 2001 | 24 |
| 2002 | 10 |
| 2003 | 37 |
| 2004 | 18 |
| 2005 | 10 |
| 2006 | 22 |
| 2007 | 27 |
| 2008 | 14 |
| 2009 | 14 |
| 2010 | 1 |
| 2012 | 14 |
| 2013 | 9 |
| 2014 | 5 |
| 2015 | 6 |
| 2016 | 26 |
| 2017 | 12 |
| 2018 | 15 |
| 2019 | 9 |
| 2020 | 31 |
| 2021 | 23 |
| 2022 | 10 |
| 2023 | 18 |
| 2024 | 6 |
| 2026 | 6 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2006-07-20 | Record high minimum temperature | Record high minimum temperature 31.7 C (89.1 F) |
Wettest Day of Each Month
Aug: 109.2 mm (4.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 63.5 mm (2.5 in) | 22 January 2010 |
| Feb | 42.7 mm (1.7 in) | 11 February 2005 |
| Mar | 71.1 mm (2.8 in) | 5 March 2004 |
| Apr | 37.3 mm (1.5 in) | 12 April 1941 |
| May | 30.2 mm (1.2 in) | 2 May 1941 |
| Jun | 34.8 mm (1.4 in) | 18 June 1949 |
| Jul | 82.6 mm (3.3 in) | 17 July 1967 |
| Aug | 109.2 mm (4.3 in) | 28 August 1951 |
| Sep | 78.7 mm (3.1 in) | 6 September 1970 |
| Oct | 48.8 mm (1.9 in) | 15 October 2018 |
| Nov | 86.6 mm (3.4 in) | 15 November 1993 |
| Dec | 69.6 mm (2.7 in) | 17 December 1978 |
Period of Record Coverage
1961 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1961 | 270 | 74% | No |
| 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 | 361 | 99% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 362 | 99% | Yes |
| 1977 | 340 | 93% | Yes |
| 1978 | 316 | 87% | No |
| 1979 | 357 | 98% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 358 | 98% | Yes |
| 1982 | 360 | 99% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 328 | 90% | No |
| 1986 | 361 | 99% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 364 | 99% | Yes |
| 1993 | 359 | 98% | Yes |
| 1994 | 323 | 88% | No |
| 1995 | 222 | 61% | No |
| 1996 | 277 | 76% | No |
| 1997 | 362 | 99% | Yes |
| 1998 | 352 | 96% | Yes |
| 1999 | 361 | 99% | Yes |
| 2000 | 363 | 99% | Yes |
| 2001 | 360 | 99% | Yes |
| 2002 | 359 | 98% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 363 | 99% | Yes |
| 2007 | 362 | 99% | Yes |
| 2008 | 320 | 87% | No |
| 2009 | 204 | 56% | No |
| 2010 | 17 | 5% | No |
| 2011 | 7 | 2% | No |
| 2012 | 230 | 63% | No |
| 2013 | 241 | 66% | No |
| 2014 | 228 | 62% | No |
| 2015 | 225 | 62% | No |
| 2016 | 210 | 57% | No |
| 2017 | 178 | 49% | No |
| 2018 | 186 | 51% | No |
| 2019 | 187 | 51% | No |
| 2020 | 172 | 47% | No |
| 2021 | 210 | 58% | No |
| 2022 | 155 | 42% | No |
| 2023 | 160 | 44% | No |
| 2024 | 88 | 24% | No |
| 2025 | 6 | 2% | No |
| 2026 | 80 | 22% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 October 2026 | Stewart Mtn Dam, US | daily high max (Tie, Provisional) | 38.9 C (102.0 F) | tie | 48 years | 5 of 100 (Routine) |
| 11 September 2026 | Stewart Mtn Dam, US | daily high min (Provisional) | 26.7 C (80.1 F) | 0.6 C (1.1 F) | 57 years | 24 of 100 (Routine) |
| 1 September 2026 | Stewart Mtn Dam, US | monthly high max (Provisional) | 46.1 C (115.0 F) | 1.7 C (3.1 F) | 46 years | 34 of 100 (Routine) |
| 26 August 2026 | Stewart Mtn Dam, US | monthly high max (Tie, Provisional) | 46.1 C (115.0 F) | tie | 21 years | 5 of 100 (Routine) |
| 24 August 2026 | Stewart Mtn Dam, US | daily high max (Provisional) | 43.3 C (109.9 F) | 0.5 C (0.9 F) | 52 years | 22 of 100 (Routine) |
| 24 August 2026 | Stewart Mtn Dam, US | daily high min (Provisional) | 29.4 C (84.9 F) | 1.6 C (2.9 F) | 35 years | 21 of 100 (Routine) |
| 19 August 2026 | Stewart Mtn Dam, US | daily high max (Provisional) | 45.6 C (114.1 F) | 0.6 C (1.1 F) | 5 years | 9 of 100 (Routine) |
| 3 August 2026 | Stewart Mtn Dam, US | daily high min | 30.0 C (86.0 F) | 1.7 C (3.1 F) | 19 years | 17 of 100 (Routine) |
| 24 July 2026 | Stewart Mtn Dam, US | daily high min (Tie) | 28.3 C (82.9 F) | tie | 23 years | 3 of 100 (Routine) |
| 10 July 2026 | Stewart Mtn Dam, US | daily high min | 29.4 C (84.9 F) | 0.5 C (0.9 F) | 17 years | 12 of 100 (Routine) |
| 10 July 2026 | Stewart Mtn Dam, US | daily high max (Tie) | 43.9 C (111.0 F) | tie | 47 years | 5 of 100 (Routine) |
| 17 June 2026 | Stewart Mtn Dam, US | daily high min (Tie) | 26.7 C (80.1 F) | tie | 44 years | 4 of 100 (Routine) |
| 15 June 2026 | Stewart Mtn Dam, US | daily high min | 28.3 C (82.9 F) | 2.2 C (4.0 F) | 8 years | 14 of 100 (Routine) |
| 12 June 2026 | Stewart Mtn Dam, US | daily high max (Tie) | 42.8 C (109.0 F) | tie | 1 year | 1 of 100 (Routine) |
| 15 May 2026 | Stewart Mtn Dam, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 52 years | 5 of 100 (Routine) |
| 12 May 2026 | Stewart Mtn Dam, US | daily high min | 22.2 C (72.0 F) | 2.8 C (5.0 F) | 64 years | 32 of 100 (Routine) |
| 12 May 2026 | Stewart Mtn Dam, US | daily high max | 42.2 C (108.0 F) | 1.6 C (2.9 F) | 19 years | 14 of 100 (Routine) |
| 11 May 2026 | Stewart Mtn Dam, US | daily high max | 40.6 C (105.1 F) | 0.6 C (1.1 F) | 24 years | 14 of 100 (Routine) |
| 14 October 2025 | Stewart Mtn Dam, US | daily rain | 16.8 mm (0.7 in) | 7.1 mm (0.28 in) | 78 years | 20 of 100 (Routine) |
| 2 June 2025 | Stewart Mtn Dam, US | daily rain | 4.6 mm (0.18 in) | 4.1 mm (0.16 in) | 76 years | 20 of 100 (Routine) |
Climate Trend
35 complete years, 1962 to 2007| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1962 | 21.1 C | +0.34 C |
| 1964 | 19.8 C | -0.91 C |
| 1965 | 20.0 C | -0.74 C |
| 1966 | 20.8 C | +0.01 C |
| 1967 | 20.4 C | -0.32 C |
| 1968 | 20.4 C | -0.40 C |
| 1969 | 20.7 C | -0.09 C |
| 1970 | 20.4 C | -0.36 C |
| 1974 | 20.3 C | -0.50 C |
| 1975 | 19.6 C | -1.19 C |
| 1976 | 20.5 C | -0.27 C |
| 1979 | 20.4 C | -0.39 C |
| 1980 | 21.3 C | +0.59 C |
| 1982 | 20.5 C | -0.28 C |
| 1983 | 20.6 C | -0.19 C |
| 1984 | 20.7 C | -0.05 C |
| 1986 | 20.0 C | -0.76 C |
| 1987 | 19.4 C | -1.37 C |
| 1988 | 19.8 C | -0.92 C |
| 1989 | 21.1 C | +0.38 C |
| 1990 | 20.6 C | -0.12 C |
| 1991 | 19.8 C | -0.98 C |
| 1992 | 20.2 C | -0.59 C |
| 1993 | 20.9 C | +0.12 C |
| 1997 | 21.5 C | +0.72 C |
| 1998 | 20.3 C | -0.41 C |
| 1999 | 21.7 C | +0.93 C |
| 2000 | 21.7 C | +0.99 C |
| 2001 | 21.4 C | +0.65 C |
| 2002 | 21.5 C | +0.78 C |
| 2003 | 22.0 C | +1.24 C |
| 2004 | 21.5 C | +0.73 C |
| 2005 | 21.7 C | +0.96 C |
| 2006 | 21.7 C | +0.92 C |
| 2007 | 22.2 C | +1.44 C |
The annual mean temperature here has risen by 0.3 C (0.2 to 0.5) per decade over 1962 to 2007. In Fahrenheit: 0.6 F (0.3 to 0.8) per decade. The slope is a straight line fitted to 35 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 0.5) per decade | 0.6 F (0.3 to 0.8) per decade | 1962 to 2007 | 35 | Rise |
| Mean daily maximum | 0.4 C (0.2 to 0.5) per decade | 0.7 F (0.4 to 1.0) per decade | 1962 to 2007 | 35 | Rise |
| Mean daily minimum | 0.27 C (0.04 to 0.49) per decade | 0.5 F (0.1 to 0.9) per decade | 1962 to 2007 | 35 | 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) | 48.9 C (120.0 F) | 1990 | 45.0 C (113.0 F) | 66 |
| Coldest night (TNn) | -8.3 C (17.1 F) | 1971 | -3.3 C (26.1 F) | 66 |
| Wettest day (Rx1day) | 109.2 mm (4.3 in) | 1951 | 35.2 mm (1.4 in) | 88 |
| Wettest five days (Rx5day) | 187.3 mm (7.4 in) | 1951 | 51.1 mm (2.0 in) | 88 |
| Longest dry spell (CDD) | 151 days | 1972 | 67 days | 88 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | n/a |
| 1945 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | 45.0 C (113.0 F) |
| 1962 | 45.0 C (113.0 F) |
| 1963 | 43.3 C (109.9 F) |
| 1964 | 43.9 C (111.0 F) |
| 1965 | 45.0 C (113.0 F) |
| 1966 | 44.4 C (111.9 F) |
| 1967 | 43.3 C (109.9 F) |
| 1968 | 46.1 C (115.0 F) |
| 1969 | 45.0 C (113.0 F) |
| 1970 | 46.7 C (116.1 F) |
| 1971 | 43.3 C (109.9 F) |
| 1972 | 45.6 C (114.1 F) |
| 1973 | 45.0 C (113.0 F) |
| 1974 | 45.6 C (114.1 F) |
| 1975 | 44.4 C (111.9 F) |
| 1976 | 44.4 C (111.9 F) |
| 1977 | 43.9 C (111.0 F) |
| 1978 | 45.6 C (114.1 F) |
| 1979 | 46.1 C (115.0 F) |
| 1980 | 45.0 C (113.0 F) |
| 1981 | 44.4 C (111.9 F) |
| 1982 | 43.3 C (109.9 F) |
| 1983 | 45.6 C (114.1 F) |
| 1984 | 43.9 C (111.0 F) |
| 1985 | 44.4 C (111.9 F) |
| 1986 | 43.3 C (109.9 F) |
| 1987 | 45.0 C (113.0 F) |
| 1988 | 45.6 C (114.1 F) |
| 1989 | 45.6 C (114.1 F) |
| 1990 | 48.9 C (120.0 F) |
| 1991 | 45.0 C (113.0 F) |
| 1992 | 44.4 C (111.9 F) |
| 1993 | 45.0 C (113.0 F) |
| 1994 | 46.7 C (116.1 F) |
| 1995 | 48.3 C (118.9 F) |
| 1996 | 45.0 C (113.0 F) |
| 1997 | 44.4 C (111.9 F) |
| 1998 | 46.7 C (116.1 F) |
| 1999 | 43.3 C (109.9 F) |
| 2000 | 43.9 C (111.0 F) |
| 2001 | 46.1 C (115.0 F) |
| 2002 | 43.9 C (111.0 F) |
| 2003 | 45.6 C (114.1 F) |
| 2004 | 45.6 C (114.1 F) |
| 2005 | 46.1 C (115.0 F) |
| 2006 | 46.7 C (116.1 F) |
| 2007 | 45.0 C (113.0 F) |
| 2008 | 45.6 C (114.1 F) |
| 2009 | 46.1 C (115.0 F) |
| 2010 | 27.2 C (81.0 F) |
| 2011 | 24.4 C (75.9 F) |
| 2012 | 45.6 C (114.1 F) |
| 2013 | 46.7 C (116.1 F) |
| 2014 | 45.0 C (113.0 F) |
| 2015 | 45.0 C (113.0 F) |
| 2016 | 47.2 C (117.0 F) |
| 2017 | 48.3 C (118.9 F) |
| 2018 | 46.7 C (116.1 F) |
| 2019 | 45.6 C (114.1 F) |
| 2020 | 47.2 C (117.0 F) |
| 2021 | 47.8 C (118.0 F) |
| 2022 | 45.0 C (113.0 F) |
| 2023 | 46.1 C (115.0 F) |
| 2024 | 44.4 C (111.9 F) |
| 2025 | 28.9 C (84.0 F) |
| 2026 | 46.1 C (115.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | n/a |
| 1945 | n/a |
| 1946 | n/a |
| 1947 | n/a |
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1952 | n/a |
| 1953 | n/a |
| 1954 | n/a |
| 1955 | n/a |
| 1956 | n/a |
| 1957 | n/a |
| 1958 | n/a |
| 1959 | n/a |
| 1960 | n/a |
| 1961 | -2.2 C (28.0 F) |
| 1962 | -3.3 C (26.1 F) |
| 1963 | -7.2 C (19.0 F) |
| 1964 | -6.1 C (21.0 F) |
| 1965 | -4.4 C (24.1 F) |
| 1966 | -3.3 C (26.1 F) |
| 1967 | -5.0 C (23.0 F) |
| 1968 | -6.1 C (21.0 F) |
| 1969 | -3.3 C (26.1 F) |
| 1970 | -4.4 C (24.1 F) |
| 1971 | -8.3 C (17.1 F) |
| 1972 | -3.3 C (26.1 F) |
| 1973 | -3.3 C (26.1 F) |
| 1974 | -7.2 C (19.0 F) |
| 1975 | -5.6 C (21.9 F) |
| 1976 | -7.2 C (19.0 F) |
| 1977 | -2.8 C (27.0 F) |
| 1978 | -6.7 C (19.9 F) |
| 1979 | -3.9 C (25.0 F) |
| 1980 | 0.0 C (32.0 F) |
| 1981 | -1.7 C (28.9 F) |
| 1982 | -2.2 C (28.0 F) |
| 1983 | -2.2 C (28.0 F) |
| 1984 | -2.2 C (28.0 F) |
| 1985 | -3.3 C (26.1 F) |
| 1986 | -4.4 C (24.1 F) |
| 1987 | -7.2 C (19.0 F) |
| 1988 | -5.6 C (21.9 F) |
| 1989 | -6.7 C (19.9 F) |
| 1990 | -7.8 C (18.0 F) |
| 1991 | -3.3 C (26.1 F) |
| 1992 | -3.9 C (25.0 F) |
| 1993 | -4.4 C (24.1 F) |
| 1994 | -3.9 C (25.0 F) |
| 1995 | -2.2 C (28.0 F) |
| 1996 | -2.2 C (28.0 F) |
| 1997 | -2.8 C (27.0 F) |
| 1998 | -4.4 C (24.1 F) |
| 1999 | -1.1 C (30.0 F) |
| 2000 | -2.2 C (28.0 F) |
| 2001 | -2.2 C (28.0 F) |
| 2002 | -3.3 C (26.1 F) |
| 2003 | -5.0 C (23.0 F) |
| 2004 | -3.9 C (25.0 F) |
| 2005 | -3.3 C (26.1 F) |
| 2006 | -4.4 C (24.1 F) |
| 2007 | -7.2 C (19.0 F) |
| 2008 | -2.2 C (28.0 F) |
| 2009 | 0.0 C (32.0 F) |
| 2010 | 1.1 C (34.0 F) |
| 2011 | 0.0 C (32.0 F) |
| 2012 | -1.7 C (28.9 F) |
| 2013 | -6.7 C (19.9 F) |
| 2014 | -5.6 C (21.9 F) |
| 2015 | -3.3 C (26.1 F) |
| 2016 | -2.2 C (28.0 F) |
| 2017 | -1.1 C (30.0 F) |
| 2018 | -1.7 C (28.9 F) |
| 2019 | -3.3 C (26.1 F) |
| 2020 | -3.9 C (25.0 F) |
| 2021 | -1.1 C (30.0 F) |
| 2022 | -3.9 C (25.0 F) |
| 2023 | -2.2 C (28.0 F) |
| 2024 | -3.3 C (26.1 F) |
| 2025 | 2.2 C (36.0 F) |
| 2026 | 11.1 C (52.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1939 | 35.8 mm (1.4 in) |
| 1940 | 51.3 mm (2.0 in) |
| 1941 | 43.2 mm (1.7 in) |
| 1942 | 36.1 mm (1.4 in) |
| 1943 | 34.3 mm (1.4 in) |
| 1944 | 27.9 mm (1.1 in) |
| 1945 | 24.4 mm (1.0 in) |
| 1946 | 57.2 mm (2.3 in) |
| 1947 | 26.9 mm (1.1 in) |
| 1948 | 25.4 mm (1.0 in) |
| 1949 | 34.8 mm (1.4 in) |
| 1950 | 26.4 mm (1.0 in) |
| 1951 | 109.2 mm (4.3 in) |
| 1952 | 31.0 mm (1.2 in) |
| 1953 | 20.8 mm (0.8 in) |
| 1954 | 38.6 mm (1.5 in) |
| 1955 | 43.7 mm (1.7 in) |
| 1956 | 15.0 mm (0.6 in) |
| 1957 | 31.0 mm (1.2 in) |
| 1958 | 27.7 mm (1.1 in) |
| 1959 | 49.5 mm (1.9 in) |
| 1960 | 32.3 mm (1.3 in) |
| 1961 | 30.0 mm (1.2 in) |
| 1962 | 23.4 mm (0.9 in) |
| 1963 | 31.5 mm (1.2 in) |
| 1964 | 48.3 mm (1.9 in) |
| 1965 | 47.2 mm (1.9 in) |
| 1966 | 34.3 mm (1.4 in) |
| 1967 | 82.6 mm (3.3 in) |
| 1968 | 34.8 mm (1.4 in) |
| 1969 | 29.0 mm (1.1 in) |
| 1970 | 78.7 mm (3.1 in) |
| 1971 | 26.9 mm (1.1 in) |
| 1972 | 46.5 mm (1.8 in) |
| 1973 | 34.3 mm (1.4 in) |
| 1974 | 39.1 mm (1.5 in) |
| 1975 | 37.1 mm (1.5 in) |
| 1976 | 30.0 mm (1.2 in) |
| 1977 | 25.7 mm (1.0 in) |
| 1978 | 69.6 mm (2.7 in) |
| 1979 | 35.3 mm (1.4 in) |
| 1980 | 30.5 mm (1.2 in) |
| 1981 | 40.1 mm (1.6 in) |
| 1982 | 50.8 mm (2.0 in) |
| 1983 | 54.1 mm (2.1 in) |
| 1984 | 33.8 mm (1.3 in) |
| 1985 | 36.1 mm (1.4 in) |
| 1986 | 49.8 mm (2.0 in) |
| 1987 | 32.0 mm (1.3 in) |
| 1988 | 48.3 mm (1.9 in) |
| 1989 | 38.1 mm (1.5 in) |
| 1990 | 35.1 mm (1.4 in) |
| 1991 | 41.1 mm (1.6 in) |
| 1992 | 47.2 mm (1.9 in) |
| 1993 | 86.6 mm (3.4 in) |
| 1994 | 19.3 mm (0.8 in) |
| 1995 | 41.9 mm (1.6 in) |
| 1996 | 24.9 mm (1.0 in) |
| 1997 | 32.8 mm (1.3 in) |
| 1998 | 40.6 mm (1.6 in) |
| 1999 | 20.3 mm (0.8 in) |
| 2000 | 54.6 mm (2.1 in) |
| 2001 | 33.0 mm (1.3 in) |
| 2002 | 21.6 mm (0.9 in) |
| 2003 | 29.2 mm (1.1 in) |
| 2004 | 71.1 mm (2.8 in) |
| 2005 | 45.7 mm (1.8 in) |
| 2006 | 47.0 mm (1.9 in) |
| 2007 | 46.5 mm (1.8 in) |
| 2008 | 60.7 mm (2.4 in) |
| 2009 | 16.5 mm (0.6 in) |
| 2010 | 63.5 mm (2.5 in) |
| 2011 | 0.8 mm (0.03 in) |
| 2012 | 27.4 mm (1.1 in) |
| 2013 | 37.6 mm (1.5 in) |
| 2014 | 50.8 mm (2.0 in) |
| 2015 | 27.7 mm (1.1 in) |
| 2016 | 32.8 mm (1.3 in) |
| 2017 | 40.6 mm (1.6 in) |
| 2018 | 48.8 mm (1.9 in) |
| 2019 | 43.4 mm (1.7 in) |
| 2020 | 26.7 mm (1.1 in) |
| 2021 | 49.5 mm (1.9 in) |
| 2022 | 33.5 mm (1.3 in) |
| 2023 | 32.5 mm (1.3 in) |
| 2024 | 23.1 mm (0.9 in) |
| 2025 | 16.8 mm (0.7 in) |
| 2026 | 46.7 mm (1.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1939 | 51.6 mm (2.0 in) |
| 1940 | 81.0 mm (3.2 in) |
| 1941 | 81.0 mm (3.2 in) |
| 1942 | 36.1 mm (1.4 in) |
| 1943 | 51.1 mm (2.0 in) |
| 1944 | 49.5 mm (1.9 in) |
| 1945 | 42.7 mm (1.7 in) |
| 1946 | 108.5 mm (4.3 in) |
| 1947 | 33.8 mm (1.3 in) |
| 1948 | 29.3 mm (1.2 in) |
| 1949 | 42.5 mm (1.7 in) |
| 1950 | 31.5 mm (1.2 in) |
| 1951 | 187.3 mm (7.4 in) |
| 1952 | 39.7 mm (1.6 in) |
| 1953 | 51.3 mm (2.0 in) |
| 1954 | 53.9 mm (2.1 in) |
| 1955 | 107.7 mm (4.2 in) |
| 1956 | 26.9 mm (1.1 in) |
| 1957 | 60.7 mm (2.4 in) |
| 1958 | 35.4 mm (1.4 in) |
| 1959 | 77.4 mm (3.0 in) |
| 1960 | 44.0 mm (1.7 in) |
| 1961 | 53.8 mm (2.1 in) |
| 1962 | 42.2 mm (1.7 in) |
| 1963 | 51.1 mm (2.0 in) |
| 1964 | 59.8 mm (2.4 in) |
| 1965 | 75.6 mm (3.0 in) |
| 1966 | 49.6 mm (2.0 in) |
| 1967 | 107.9 mm (4.2 in) |
| 1968 | 41.4 mm (1.6 in) |
| 1969 | 38.4 mm (1.5 in) |
| 1970 | 91.6 mm (3.6 in) |
| 1971 | 47.5 mm (1.9 in) |
| 1972 | 107.5 mm (4.2 in) |
| 1973 | 42.9 mm (1.7 in) |
| 1974 | 54.8 mm (2.2 in) |
| 1975 | 39.1 mm (1.5 in) |
| 1976 | 56.4 mm (2.2 in) |
| 1977 | 40.6 mm (1.6 in) |
| 1978 | 94.7 mm (3.7 in) |
| 1979 | 81.8 mm (3.2 in) |
| 1980 | 79.4 mm (3.1 in) |
| 1981 | 40.9 mm (1.6 in) |
| 1982 | 65.5 mm (2.6 in) |
| 1983 | 142.8 mm (5.6 in) |
| 1984 | 52.5 mm (2.1 in) |
| 1985 | 51.3 mm (2.0 in) |
| 1986 | 70.2 mm (2.8 in) |
| 1987 | 61.0 mm (2.4 in) |
| 1988 | 52.9 mm (2.1 in) |
| 1989 | 52.3 mm (2.1 in) |
| 1990 | 86.7 mm (3.4 in) |
| 1991 | 62.6 mm (2.5 in) |
| 1992 | 96.5 mm (3.8 in) |
| 1993 | 138.1 mm (5.4 in) |
| 1994 | 42.1 mm (1.7 in) |
| 1995 | 49.0 mm (1.9 in) |
| 1996 | 33.3 mm (1.3 in) |
| 1997 | 54.1 mm (2.1 in) |
| 1998 | 65.0 mm (2.6 in) |
| 1999 | 32.7 mm (1.3 in) |
| 2000 | 80.0 mm (3.1 in) |
| 2001 | 43.2 mm (1.7 in) |
| 2002 | 23.6 mm (0.9 in) |
| 2003 | 47.3 mm (1.9 in) |
| 2004 | 71.1 mm (2.8 in) |
| 2005 | 75.8 mm (3.0 in) |
| 2006 | 61.0 mm (2.4 in) |
| 2007 | 63.3 mm (2.5 in) |
| 2008 | 64.9 mm (2.6 in) |
| 2009 | 33.8 mm (1.3 in) |
| 2010 | 136.0 mm (5.4 in) |
| 2011 | 0.0 mm (0.00 in) |
| 2012 | 39.8 mm (1.6 in) |
| 2013 | 37.6 mm (1.5 in) |
| 2014 | 32.3 mm (1.3 in) |
| 2015 | 27.7 mm (1.1 in) |
| 2016 | 30.0 mm (1.2 in) |
| 2017 | 24.6 mm (1.0 in) |
| 2018 | 40.5 mm (1.6 in) |
| 2019 | 7.4 mm (0.29 in) |
| 2020 | 1.3 mm (0.05 in) |
| 2021 | 27.7 mm (1.1 in) |
| 2022 | 35.8 mm (1.4 in) |
| 2023 | 20.1 mm (0.8 in) |
| 2024 | 0.0 mm (0.00 in) |
| 2025 | 21.9 mm (0.9 in) |
| 2026 | 66.2 mm (2.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1939 | 50 days |
| 1940 | 59 days |
| 1941 | 66 days |
| 1942 | 81 days |
| 1943 | 131 days |
| 1944 | 73 days |
| 1945 | 114 days |
| 1946 | 105 days |
| 1947 | 72 days |
| 1948 | 102 days |
| 1949 | 33 days |
| 1950 | 53 days |
| 1951 | 64 days |
| 1952 | 47 days |
| 1953 | 80 days |
| 1954 | 84 days |
| 1955 | 142 days |
| 1956 | 75 days |
| 1957 | 60 days |
| 1958 | 78 days |
| 1959 | 145 days |
| 1960 | 145 days |
| 1961 | 95 days |
| 1962 | 103 days |
| 1963 | 84 days |
| 1964 | 75 days |
| 1965 | 41 days |
| 1966 | 84 days |
| 1967 | 48 days |
| 1968 | 83 days |
| 1969 | 67 days |
| 1970 | 74 days |
| 1971 | 96 days |
| 1972 | 151 days |
| 1973 | 96 days |
| 1974 | 108 days |
| 1975 | 81 days |
| 1976 | 62 days |
| 1977 | 62 days |
| 1978 | 56 days |
| 1979 | 65 days |
| 1980 | 60 days |
| 1981 | 55 days |
| 1982 | 40 days |
| 1983 | 68 days |
| 1984 | 84 days |
| 1985 | 77 days |
| 1986 | 85 days |
| 1987 | 51 days |
| 1988 | 56 days |
| 1989 | 54 days |
| 1990 | 40 days |
| 1991 | 122 days |
| 1992 | 36 days |
| 1993 | 56 days |
| 1994 | 53 days |
| 1995 | 57 days |
| 1996 | 107 days |
| 1997 | 72 days |
| 1998 | 95 days |
| 1999 | 99 days |
| 2000 | 84 days |
| 2001 | 71 days |
| 2002 | 96 days |
| 2003 | 96 days |
| 2004 | 95 days |
| 2005 | 73 days |
| 2006 | 68 days |
| 2007 | 64 days |
| 2008 | 68 days |
| 2009 | 53 days |
| 2010 | 36 days |
| 2011 | 5 days |
| 2012 | 5 days |
| 2013 | 14 days |
| 2014 | 6 days |
| 2015 | 5 days |
| 2016 | 42 days |
| 2017 | 6 days |
| 2018 | 32 days |
| 2019 | 5 days |
| 2020 | 5 days |
| 2021 | 6 days |
| 2022 | 5 days |
| 2023 | 30 days |
| 2024 | 5 days |
| 2025 | 32 days |
| 2026 | 23 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
33 years with a frostAcross 33 years with a frost, the median last spring frost at Stewart Mtn Dam falls on 24 February and the median first autumn frost on 27 November, which leaves a median of 285 days between them.
Fitted over all years, the growing season changes by +5.2 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1967 to 2007) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 24 February | n/a | 21 February | n/a | -3.8 days per decade |
| First autumn frost | 27 November | n/a | 27 November | n/a | +1.4 days per decade |
| Growing days | 285 days | n/a | 287 days | n/a | +5.2 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
67 years, 1940 to 2008A day with at least 36.5 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 104.0 mm (4.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 36.5 mm (1.4 in) | |
| 5 years | 50.8 mm (2.0 in) | |
| 10 years | 61.6 mm (2.4 in) | |
| 25 years | 77.0 mm (3.0 in) | |
| 50 years | 89.9 mm (3.5 in) | |
| 100 years | 104.0 mm (4.1 in) | Longer than the 67 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, 67 years of values from 1940 to 2008.
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: 109.2 mm (4.3 in) in 1951; 86.6 mm (3.4 in) in 1993; 82.6 mm (3.3 in) in 1967.
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 (2026-10-15).