Casa Grande Weather Records (USC00021306)
Record envelope, standing records and threshold days for Casa Grande (USC00021306), Arizona, United States, with 129 years of record.
Key Facts for Casa Grande
- Casa Grande (USC00021306) is a weather station in Arizona, United States at 32.89 latitude and -111.71 longitude, 427 m (1,400 ft) above sea level.
- The station reports from 1898 to 2026, 129 years of record.
- 1,464 records set at Casa Grande still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Casa Grande set a daily record high minimum temperature of 21.7 C (71.1 F) on 11 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, 32.89 latitude, -111.71 longitude.
- Elevation: 427 m (1,400 ft).
- Period of record: 1898 to 2026, 129 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 | 31.1 C (88.0 F) | -8.3 C (17.1 F) | 25.0 C (77.0 F) | 0.6 C (33.1 F) |
| Feb | 36.1 C (97.0 F) | -8.3 C (17.1 F) | 33.9 C (93.0 F) | 1.1 C (34.0 F) |
| Mar | 40.0 C (104.0 F) | -7.2 C (19.0 F) | 40.0 C (104.0 F) | 6.7 C (44.1 F) |
| Apr | 43.3 C (109.9 F) | -2.2 C (28.0 F) | n/a | n/a |
| May | 48.9 C (120.0 F) | 2.2 C (36.0 F) | n/a | n/a |
| Jun | 48.3 C (118.9 F) | 4.4 C (39.9 F) | 44.4 C (111.9 F) | 20.0 C (68.0 F) |
| Jul | 50.0 C (122.0 F) | 11.1 C (52.0 F) | 46.1 C (115.0 F) | 17.2 C (63.0 F) |
| Aug | 48.9 C (120.0 F) | 13.9 C (57.0 F) | 45.6 C (114.1 F) | 22.2 C (72.0 F) |
| Sep | 46.7 C (116.1 F) | 4.4 C (39.9 F) | 41.7 C (107.1 F) | 16.1 C (61.0 F) |
| Oct | 43.3 C (109.9 F) | -2.8 C (27.0 F) | 40.0 C (104.0 F) | 18.3 C (64.9 F) |
| Nov | 36.1 C (97.0 F) | -5.6 C (21.9 F) | n/a | n/a |
| Dec | 32.8 C (91.0 F) | -9.4 C (15.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1903 | 7 |
| 1904 | 19 |
| 1905 | 28 |
| 1906 | 60 |
| 1907 | 65 |
| 1908 | 33 |
| 1909 | 12 |
| 1910 | 45 |
| 1911 | 3 |
| 1912 | 23 |
| 1917 | 15 |
| 1918 | 13 |
| 1919 | 7 |
| 1920 | 7 |
| 1921 | 18 |
| 1922 | 12 |
| 1923 | 14 |
| 1925 | 12 |
| 1926 | 7 |
| 1927 | 21 |
| 1928 | 8 |
| 1929 | 12 |
| 1930 | 28 |
| 1931 | 14 |
| 1932 | 15 |
| 1933 | 23 |
| 1934 | 19 |
| 1935 | 15 |
| 1936 | 23 |
| 1937 | 10 |
| 1938 | 13 |
| 1939 | 8 |
| 1940 | 8 |
| 1941 | 8 |
| 1942 | 13 |
| 1943 | 14 |
| 1944 | 37 |
| 1945 | 3 |
| 1946 | 15 |
| 1947 | 25 |
| 1948 | 14 |
| 1949 | 24 |
| 1950 | 26 |
| 1951 | 16 |
| 1952 | 18 |
| 1953 | 11 |
| 1954 | 13 |
| 1955 | 23 |
| 1956 | 5 |
| 1957 | 8 |
| 1958 | 10 |
| 1959 | 6 |
| 1960 | 5 |
| 1961 | 8 |
| 1962 | 7 |
| 1963 | 12 |
| 1964 | 12 |
| 1965 | 14 |
| 1966 | 7 |
| 1967 | 7 |
| 1968 | 3 |
| 1969 | 6 |
| 1970 | 6 |
| 1971 | 18 |
| 1972 | 5 |
| 1973 | 4 |
| 1974 | 10 |
| 1975 | 19 |
| 1976 | 20 |
| 1977 | 11 |
| 1978 | 4 |
| 1979 | 14 |
| 1980 | 12 |
| 1981 | 9 |
| 1982 | 12 |
| 1983 | 9 |
| 1984 | 7 |
| 1985 | 8 |
| 1986 | 13 |
| 1987 | 14 |
| 1988 | 7 |
| 1989 | 6 |
| 1990 | 11 |
| 1991 | 8 |
| 1992 | 5 |
| 1993 | 8 |
| 1994 | 9 |
| 1995 | 6 |
| 1996 | 10 |
| 1997 | 14 |
| 1998 | 14 |
| 1999 | 9 |
| 2000 | 6 |
| 2001 | 7 |
| 2002 | 6 |
| 2003 | 10 |
| 2004 | 6 |
| 2005 | 6 |
| 2006 | 20 |
| 2007 | 5 |
| 2008 | 7 |
| 2009 | 13 |
| 2019 | 3 |
| 2020 | 19 |
| 2021 | 8 |
| 2022 | 3 |
| 2023 | 14 |
| 2024 | 16 |
| 2025 | 12 |
| 2026 | 14 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1936-07-25 | Record daily precipitation | Record daily precipitation 114.3 mm (4.5 in) |
| 1954-12-28 | Record low minimum temperature | Record low minimum temperature -9.4 C (15.1 F) |
| 1983-03-19 | Record daily precipitation | Record daily precipitation 116.8 mm (4.6 in) |
Wettest Day of Each Month
Mar: 116.8 mm (4.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 44.5 mm (1.8 in) | 10 January 1905 |
| Feb | 38.1 mm (1.5 in) | 19 February 1998 |
| Mar | 116.8 mm (4.6 in) | 19 March 1983 |
| Apr | 31.8 mm (1.3 in) | 12 April 1912 |
| May | 19.6 mm (0.8 in) | 10 May 1944 |
| Jun | 28.4 mm (1.1 in) | 22 June 1958 |
| Jul | 114.3 mm (4.5 in) | 25 July 1936 |
| Aug | 86.9 mm (3.4 in) | 12 August 1964 |
| Sep | 74.2 mm (2.9 in) | 18 September 1946 |
| Oct | 46.7 mm (1.8 in) | 19 October 1972 |
| Nov | 50.8 mm (2.0 in) | 26 November 1905 |
| Dec | 42.9 mm (1.7 in) | 4 December 2022 |
Period of Record Coverage
1903 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1903 | 276 | 76% | No |
| 1904 | 334 | 91% | Yes |
| 1905 | 363 | 99% | Yes |
| 1906 | 333 | 91% | Yes |
| 1907 | 334 | 92% | Yes |
| 1908 | 304 | 83% | No |
| 1909 | 181 | 50% | No |
| 1910 | 209 | 57% | No |
| 1911 | 122 | 33% | No |
| 1912 | 144 | 39% | No |
| 1917 | 205 | 56% | No |
| 1918 | 236 | 65% | No |
| 1919 | 333 | 91% | Yes |
| 1920 | 60 | 16% | No |
| 1921 | 278 | 76% | No |
| 1922 | 289 | 79% | No |
| 1923 | 25 | 7% | No |
| 1925 | 194 | 53% | No |
| 1926 | 300 | 82% | No |
| 1927 | 337 | 92% | Yes |
| 1928 | 299 | 82% | No |
| 1929 | 363 | 99% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 347 | 95% | Yes |
| 1933 | 357 | 98% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 343 | 94% | Yes |
| 1937 | 359 | 98% | Yes |
| 1938 | 324 | 89% | No |
| 1939 | 278 | 76% | No |
| 1940 | 300 | 82% | No |
| 1941 | 351 | 96% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 296 | 81% | No |
| 1946 | 245 | 67% | No |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 358 | 98% | Yes |
| 1950 | 359 | 98% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 356 | 98% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 293 | 80% | No |
| 1956 | 321 | 88% | No |
| 1957 | 356 | 98% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 351 | 96% | Yes |
| 1961 | 351 | 96% | Yes |
| 1962 | 350 | 96% | Yes |
| 1963 | 360 | 99% | Yes |
| 1964 | 361 | 99% | Yes |
| 1965 | 295 | 81% | No |
| 1966 | 342 | 94% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 352 | 96% | Yes |
| 1969 | 357 | 98% | Yes |
| 1970 | 338 | 93% | Yes |
| 1971 | 303 | 83% | No |
| 1972 | 318 | 87% | No |
| 1973 | 356 | 98% | Yes |
| 1974 | 354 | 97% | Yes |
| 1975 | 360 | 99% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 332 | 91% | Yes |
| 1978 | 181 | 50% | No |
| 1979 | 362 | 99% | Yes |
| 1980 | 362 | 99% | Yes |
| 1981 | 333 | 91% | Yes |
| 1982 | 349 | 96% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 315 | 86% | No |
| 1985 | 333 | 91% | Yes |
| 1986 | 336 | 92% | Yes |
| 1987 | 330 | 90% | Yes |
| 1988 | 326 | 89% | No |
| 1989 | 329 | 90% | Yes |
| 1990 | 299 | 82% | No |
| 1991 | 292 | 80% | No |
| 1992 | 358 | 98% | Yes |
| 1993 | 338 | 93% | Yes |
| 1994 | 317 | 87% | No |
| 1995 | 266 | 73% | No |
| 1996 | 110 | 30% | No |
| 1997 | 278 | 76% | No |
| 1998 | 300 | 82% | No |
| 1999 | 244 | 67% | No |
| 2000 | 180 | 49% | No |
| 2001 | 323 | 88% | No |
| 2002 | 334 | 92% | Yes |
| 2003 | 325 | 89% | No |
| 2004 | 261 | 71% | No |
| 2005 | 350 | 96% | Yes |
| 2006 | 329 | 90% | Yes |
| 2007 | 327 | 90% | No |
| 2008 | 325 | 89% | No |
| 2009 | 202 | 55% | No |
| 2019 | 189 | 52% | No |
| 2020 | 355 | 97% | Yes |
| 2021 | 349 | 96% | Yes |
| 2022 | 340 | 93% | Yes |
| 2023 | 357 | 98% | Yes |
| 2024 | 347 | 95% | Yes |
| 2025 | 333 | 91% | Yes |
| 2026 | 187 | 51% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2026 | Casa Grande, US | daily high min (Provisional) | 21.7 C (71.1 F) | 2.3 C (4.1 F) | 44 years | 28 of 100 (Routine) |
| 10 October 2026 | Casa Grande, US | daily high min (Provisional) | 24.4 C (75.9 F) | 1.6 C (2.9 F) | 0 years | 13 of 100 (Routine) |
| 6 October 2026 | Casa Grande, US | daily high min (Provisional) | 21.7 C (71.1 F) | 0.6 C (1.1 F) | 20 years | 17 of 100 (Routine) |
| 5 October 2026 | Casa Grande, US | daily high min (Tie, Provisional) | 21.7 C (71.1 F) | tie | 79 years | 8 of 100 (Routine) |
| 17 September 2026 | Casa Grande, US | daily low max (Provisional) | 31.7 C (89.1 F) | 0.5 C (0.9 F) | 47 years | 25 of 100 (Routine) |
| 14 September 2026 | Casa Grande, US | daily high min (Provisional) | 30.0 C (86.0 F) | 3.3 C (5.9 F) | 81 years | 42 of 100 (Notable) |
| 11 September 2026 | Casa Grande, US | daily high min (Provisional) | 29.4 C (84.9 F) | 0.5 C (0.9 F) | 123 years | 41 of 100 (Notable) |
| 10 September 2026 | Casa Grande, US | daily high min (Tie, Provisional) | 26.7 C (80.1 F) | tie | 81 years | 8 of 100 (Routine) |
| 9 September 2026 | Casa Grande, US | daily high min (Provisional) | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 81 years | 36 of 100 (Notable) |
| 8 September 2026 | Casa Grande, US | daily high min (Tie, Provisional) | 28.3 C (82.9 F) | tie | 81 years | 8 of 100 (Routine) |
| 22 August 2026 | Casa Grande, US | daily high max (Tie, Provisional) | 45.6 C (114.1 F) | tie | 123 years | 10 of 100 (Routine) |
| 17 August 2026 | Casa Grande, US | daily high max (Tie, Provisional) | 45.0 C (113.0 F) | tie | 5 years | 2 of 100 (Routine) |
| 9 August 2026 | Casa Grande, US | daily high min | 31.1 C (88.0 F) | 0.5 C (0.9 F) | 0 years | 11 of 100 (Routine) |
| 5 August 2026 | Casa Grande, US | daily high min | 32.2 C (90.0 F) | 2.8 C (5.0 F) | 4 years | 20 of 100 (Routine) |
| 3 August 2026 | Casa Grande, US | daily high min | 31.1 C (88.0 F) | 1.7 C (3.1 F) | 4 years | 16 of 100 (Routine) |
| 2 August 2026 | Casa Grande, US | daily high min | 31.1 C (88.0 F) | 0.5 C (0.9 F) | 5 years | 12 of 100 (Routine) |
| 31 July 2026 | Casa Grande, US | daily high min | 31.1 C (88.0 F) | 2.2 C (4.0 F) | 56 years | 33 of 100 (Routine) |
| 24 July 2026 | Casa Grande, US | daily high max (Tie) | 46.1 C (115.0 F) | tie | 120 years | 10 of 100 (Routine) |
| 26 June 2026 | Casa Grande, US | daily high min | 31.1 C (88.0 F) | 0.5 C (0.9 F) | 96 years | 40 of 100 (Notable) |
| 17 June 2026 | Casa Grande, US | daily rain | 0.5 mm (0.02 in) | 0.5 mm (0.02 in) | 127 years | 20 of 100 (Routine) |
Climate Trend
60 complete years, 1905 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1905 | 22.0 C | +0.61 C |
| 1929 | 20.5 C | -0.95 C |
| 1930 | 20.5 C | -0.94 C |
| 1931 | 20.7 C | -0.68 C |
| 1933 | 20.1 C | -1.35 C |
| 1934 | 21.9 C | +0.49 C |
| 1935 | 20.6 C | -0.84 C |
| 1936 | 21.6 C | +0.17 C |
| 1937 | 21.1 C | -0.33 C |
| 1941 | 19.9 C | -1.48 C |
| 1942 | 20.4 C | -1.05 C |
| 1944 | 20.0 C | -1.42 C |
| 1947 | 21.3 C | -0.09 C |
| 1948 | 21.0 C | -0.44 C |
| 1949 | 20.8 C | -0.58 C |
| 1950 | 22.1 C | +0.67 C |
| 1951 | 21.3 C | -0.09 C |
| 1952 | 21.3 C | -0.10 C |
| 1953 | 21.3 C | -0.08 C |
| 1954 | 21.4 C | +0.01 C |
| 1957 | 21.4 C | -0.03 C |
| 1958 | 21.9 C | +0.47 C |
| 1959 | 21.7 C | +0.25 C |
| 1960 | 21.7 C | +0.24 C |
| 1961 | 21.7 C | +0.23 C |
| 1962 | 21.7 C | +0.23 C |
| 1963 | 21.5 C | +0.12 C |
| 1964 | 20.3 C | -1.13 C |
| 1967 | 21.5 C | +0.09 C |
| 1968 | 20.8 C | -0.66 C |
| 1969 | 21.7 C | +0.25 C |
| 1970 | 21.4 C | -0.05 C |
| 1973 | 21.0 C | -0.39 C |
| 1974 | 20.7 C | -0.71 C |
| 1975 | 19.6 C | -1.79 C |
| 1976 | 20.3 C | -1.09 C |
| 1979 | 20.7 C | -0.69 C |
| 1980 | 21.6 C | +0.17 C |
| 1982 | 20.4 C | -0.98 C |
| 1983 | 20.6 C | -0.78 C |
| 1985 | 21.3 C | -0.15 C |
| 1986 | 21.7 C | +0.25 C |
| 1987 | 21.7 C | +0.30 C |
| 1988 | 21.8 C | +0.41 C |
| 1989 | 22.3 C | +0.86 C |
| 1992 | 21.4 C | -0.04 C |
| 1993 | 21.8 C | +0.41 C |
| 1994 | 22.0 C | +0.59 C |
| 1998 | 21.3 C | -0.11 C |
| 2001 | 22.0 C | +0.58 C |
| 2002 | 21.7 C | +0.24 C |
| 2003 | 22.1 C | +0.67 C |
| 2005 | 22.4 C | +1.02 C |
| 2006 | 22.4 C | +1.01 C |
| 2007 | 22.4 C | +1.00 C |
| 2020 | 23.1 C | +1.67 C |
| 2021 | 22.9 C | +1.45 C |
| 2023 | 22.5 C | +1.10 C |
| 2024 | 22.9 C | +1.50 C |
| 2025 | 23.2 C | +1.82 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1905 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 60 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1905 to 2025 | 60 | Rise |
| Mean daily maximum | 0.09 C (0.02 to 0.16) per decade | 0.17 F (0.04 to 0.30) per decade | 1905 to 2025 | 60 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.3) per decade | 0.5 F (0.3 to 0.6) per decade | 1905 to 2025 | 60 | 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
1898 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 50.0 C (122.0 F) | 1905 | 46.1 C (115.0 F) | 110 |
| Coldest night (TNn) | -9.4 C (15.1 F) | 1954 | -5.0 C (23.0 F) | 110 |
| Wettest day (Rx1day) | 116.8 mm (4.6 in) | 1983 | 27.9 mm (1.1 in) | 117 |
| Wettest five days (Rx5day) | 130.2 mm (5.1 in) | 1983 | 40.0 mm (1.6 in) | 117 |
| Longest dry spell (CDD) | 150 days | 1972 | 75 days | 117 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1898 | n/a |
| 1899 | n/a |
| 1900 | n/a |
| 1901 | n/a |
| 1902 | n/a |
| 1903 | 47.2 C (117.0 F) |
| 1904 | 47.2 C (117.0 F) |
| 1905 | 50.0 C (122.0 F) |
| 1906 | 48.3 C (118.9 F) |
| 1907 | 48.9 C (120.0 F) |
| 1908 | 47.2 C (117.0 F) |
| 1909 | 44.4 C (111.9 F) |
| 1910 | 48.9 C (120.0 F) |
| 1911 | 43.9 C (111.0 F) |
| 1912 | 43.3 C (109.9 F) |
| 1913 | n/a |
| 1914 | n/a |
| 1917 | 46.1 C (115.0 F) |
| 1918 | 45.0 C (113.0 F) |
| 1919 | 45.6 C (114.1 F) |
| 1920 | 26.1 C (79.0 F) |
| 1921 | 45.0 C (113.0 F) |
| 1922 | 47.8 C (118.0 F) |
| 1923 | 24.4 C (75.9 F) |
| 1925 | 46.1 C (115.0 F) |
| 1926 | 46.7 C (116.1 F) |
| 1927 | 46.7 C (116.1 F) |
| 1928 | 46.7 C (116.1 F) |
| 1929 | 48.3 C (118.9 F) |
| 1930 | 46.1 C (115.0 F) |
| 1931 | 46.7 C (116.1 F) |
| 1932 | 47.8 C (118.0 F) |
| 1933 | 46.7 C (116.1 F) |
| 1934 | 47.8 C (118.0 F) |
| 1935 | 45.6 C (114.1 F) |
| 1936 | 48.9 C (120.0 F) |
| 1937 | 47.2 C (117.0 F) |
| 1938 | 48.3 C (118.9 F) |
| 1939 | 46.7 C (116.1 F) |
| 1940 | 47.8 C (118.0 F) |
| 1941 | 43.9 C (111.0 F) |
| 1942 | 46.1 C (115.0 F) |
| 1943 | 47.2 C (117.0 F) |
| 1944 | 46.1 C (115.0 F) |
| 1945 | 45.0 C (113.0 F) |
| 1946 | 43.3 C (109.9 F) |
| 1947 | 46.1 C (115.0 F) |
| 1948 | 46.7 C (116.1 F) |
| 1949 | 45.0 C (113.0 F) |
| 1950 | 46.7 C (116.1 F) |
| 1951 | 46.1 C (115.0 F) |
| 1952 | 46.7 C (116.1 F) |
| 1953 | 46.7 C (116.1 F) |
| 1954 | 43.9 C (111.0 F) |
| 1955 | 45.6 C (114.1 F) |
| 1956 | 45.0 C (113.0 F) |
| 1957 | 46.1 C (115.0 F) |
| 1958 | 47.8 C (118.0 F) |
| 1959 | 46.1 C (115.0 F) |
| 1960 | 45.6 C (114.1 F) |
| 1961 | 46.1 C (115.0 F) |
| 1962 | 44.4 C (111.9 F) |
| 1963 | 44.4 C (111.9 F) |
| 1964 | 44.4 C (111.9 F) |
| 1965 | 43.9 C (111.0 F) |
| 1966 | 44.4 C (111.9 F) |
| 1967 | 44.4 C (111.9 F) |
| 1968 | 46.1 C (115.0 F) |
| 1969 | 45.0 C (113.0 F) |
| 1970 | 46.7 C (116.1 F) |
| 1971 | 45.0 C (113.0 F) |
| 1972 | 45.6 C (114.1 F) |
| 1973 | 46.1 C (115.0 F) |
| 1974 | 46.1 C (115.0 F) |
| 1975 | 45.0 C (113.0 F) |
| 1976 | 45.6 C (114.1 F) |
| 1977 | 45.6 C (114.1 F) |
| 1978 | 46.7 C (116.1 F) |
| 1979 | 48.3 C (118.9 F) |
| 1980 | 47.2 C (117.0 F) |
| 1981 | 46.1 C (115.0 F) |
| 1982 | 45.0 C (113.0 F) |
| 1983 | 46.7 C (116.1 F) |
| 1984 | 45.0 C (113.0 F) |
| 1985 | 46.1 C (115.0 F) |
| 1986 | 45.6 C (114.1 F) |
| 1987 | 44.4 C (111.9 F) |
| 1988 | 45.0 C (113.0 F) |
| 1989 | 46.7 C (116.1 F) |
| 1990 | 47.8 C (118.0 F) |
| 1991 | 42.8 C (109.0 F) |
| 1992 | 43.3 C (109.9 F) |
| 1993 | 45.6 C (114.1 F) |
| 1994 | 47.8 C (118.0 F) |
| 1995 | 48.9 C (120.0 F) |
| 1996 | 40.6 C (105.1 F) |
| 1997 | 47.2 C (117.0 F) |
| 1998 | 48.3 C (118.9 F) |
| 1999 | 44.4 C (111.9 F) |
| 2000 | 45.6 C (114.1 F) |
| 2001 | 46.1 C (115.0 F) |
| 2002 | 45.0 C (113.0 F) |
| 2003 | 46.7 C (116.1 F) |
| 2004 | 43.9 C (111.0 F) |
| 2005 | 47.2 C (117.0 F) |
| 2006 | 47.2 C (117.0 F) |
| 2007 | 46.7 C (116.1 F) |
| 2008 | 46.7 C (116.1 F) |
| 2009 | 45.6 C (114.1 F) |
| 2019 | 45.6 C (114.1 F) |
| 2020 | 46.7 C (116.1 F) |
| 2021 | 46.7 C (116.1 F) |
| 2022 | 45.0 C (113.0 F) |
| 2023 | 46.7 C (116.1 F) |
| 2024 | 46.1 C (115.0 F) |
| 2025 | 47.2 C (117.0 F) |
| 2026 | 46.1 C (115.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1898 | n/a |
| 1899 | n/a |
| 1900 | n/a |
| 1901 | n/a |
| 1902 | n/a |
| 1903 | -3.3 C (26.1 F) |
| 1904 | -6.1 C (21.0 F) |
| 1905 | -3.9 C (25.0 F) |
| 1906 | -8.3 C (17.1 F) |
| 1907 | -6.1 C (21.0 F) |
| 1908 | -7.2 C (19.0 F) |
| 1909 | -1.1 C (30.0 F) |
| 1910 | -3.9 C (25.0 F) |
| 1911 | 2.8 C (37.0 F) |
| 1912 | -4.4 C (24.1 F) |
| 1913 | n/a |
| 1914 | n/a |
| 1917 | -3.3 C (26.1 F) |
| 1918 | -2.2 C (28.0 F) |
| 1919 | -7.2 C (19.0 F) |
| 1920 | -6.1 C (21.0 F) |
| 1921 | -5.6 C (21.9 F) |
| 1922 | -7.8 C (18.0 F) |
| 1923 | -5.0 C (23.0 F) |
| 1925 | -4.4 C (24.1 F) |
| 1926 | -5.6 C (21.9 F) |
| 1927 | -3.9 C (25.0 F) |
| 1928 | -7.2 C (19.0 F) |
| 1929 | -6.7 C (19.9 F) |
| 1930 | -7.2 C (19.0 F) |
| 1931 | -7.8 C (18.0 F) |
| 1932 | -8.3 C (17.1 F) |
| 1933 | -7.2 C (19.0 F) |
| 1934 | -6.1 C (21.0 F) |
| 1935 | -6.7 C (19.9 F) |
| 1936 | -5.6 C (21.9 F) |
| 1937 | -8.3 C (17.1 F) |
| 1938 | -5.6 C (21.9 F) |
| 1939 | -5.6 C (21.9 F) |
| 1940 | -5.6 C (21.9 F) |
| 1941 | -4.4 C (24.1 F) |
| 1942 | -4.4 C (24.1 F) |
| 1943 | -6.1 C (21.0 F) |
| 1944 | -6.7 C (19.9 F) |
| 1945 | -5.0 C (23.0 F) |
| 1946 | -2.8 C (27.0 F) |
| 1947 | -4.4 C (24.1 F) |
| 1948 | -5.6 C (21.9 F) |
| 1949 | -6.7 C (19.9 F) |
| 1950 | -8.3 C (17.1 F) |
| 1951 | -5.0 C (23.0 F) |
| 1952 | -4.4 C (24.1 F) |
| 1953 | -5.6 C (21.9 F) |
| 1954 | -9.4 C (15.1 F) |
| 1955 | -8.3 C (17.1 F) |
| 1956 | -5.0 C (23.0 F) |
| 1957 | -2.2 C (28.0 F) |
| 1958 | -3.9 C (25.0 F) |
| 1959 | -3.9 C (25.0 F) |
| 1960 | -6.7 C (19.9 F) |
| 1961 | -1.7 C (28.9 F) |
| 1962 | -5.6 C (21.9 F) |
| 1963 | -6.7 C (19.9 F) |
| 1964 | -6.1 C (21.0 F) |
| 1965 | -2.8 C (27.0 F) |
| 1966 | -4.4 C (24.1 F) |
| 1967 | -6.7 C (19.9 F) |
| 1968 | -4.4 C (24.1 F) |
| 1969 | -3.9 C (25.0 F) |
| 1970 | -3.9 C (25.0 F) |
| 1971 | -7.2 C (19.0 F) |
| 1972 | -5.0 C (23.0 F) |
| 1973 | -3.9 C (25.0 F) |
| 1974 | -9.4 C (15.1 F) |
| 1975 | -6.7 C (19.9 F) |
| 1976 | -7.2 C (19.0 F) |
| 1977 | -5.0 C (23.0 F) |
| 1978 | -2.8 C (27.0 F) |
| 1979 | -6.1 C (21.0 F) |
| 1980 | -2.2 C (28.0 F) |
| 1981 | -3.9 C (25.0 F) |
| 1982 | -3.3 C (26.1 F) |
| 1983 | -5.0 C (23.0 F) |
| 1984 | -5.0 C (23.0 F) |
| 1985 | -7.2 C (19.0 F) |
| 1986 | -2.8 C (27.0 F) |
| 1987 | -4.4 C (24.1 F) |
| 1988 | -5.6 C (21.9 F) |
| 1989 | -3.9 C (25.0 F) |
| 1990 | -5.0 C (23.0 F) |
| 1991 | -1.1 C (30.0 F) |
| 1992 | -2.2 C (28.0 F) |
| 1993 | -5.0 C (23.0 F) |
| 1994 | -3.3 C (26.1 F) |
| 1995 | 0.0 C (32.0 F) |
| 1996 | -2.2 C (28.0 F) |
| 1997 | -2.2 C (28.0 F) |
| 1998 | -4.4 C (24.1 F) |
| 1999 | -1.7 C (28.9 F) |
| 2000 | -3.3 C (26.1 F) |
| 2001 | -3.3 C (26.1 F) |
| 2002 | -4.4 C (24.1 F) |
| 2003 | -6.1 C (21.0 F) |
| 2004 | -4.4 C (24.1 F) |
| 2005 | -5.0 C (23.0 F) |
| 2006 | -5.0 C (23.0 F) |
| 2007 | -8.3 C (17.1 F) |
| 2008 | -3.3 C (26.1 F) |
| 2009 | -1.1 C (30.0 F) |
| 2019 | -1.1 C (30.0 F) |
| 2020 | -2.8 C (27.0 F) |
| 2021 | -1.7 C (28.9 F) |
| 2022 | -2.8 C (27.0 F) |
| 2023 | -2.2 C (28.0 F) |
| 2024 | -3.9 C (25.0 F) |
| 2025 | -4.4 C (24.1 F) |
| 2026 | 0.6 C (33.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1898 | 25.4 mm (1.0 in) |
| 1899 | 22.4 mm (0.9 in) |
| 1900 | 25.4 mm (1.0 in) |
| 1901 | 24.9 mm (1.0 in) |
| 1902 | 25.4 mm (1.0 in) |
| 1903 | 15.2 mm (0.6 in) |
| 1904 | 24.6 mm (1.0 in) |
| 1905 | 50.8 mm (2.0 in) |
| 1906 | 38.1 mm (1.5 in) |
| 1907 | 44.5 mm (1.8 in) |
| 1908 | 38.1 mm (1.5 in) |
| 1909 | 12.2 mm (0.5 in) |
| 1910 | 19.1 mm (0.8 in) |
| 1911 | 33.0 mm (1.3 in) |
| 1912 | 50.8 mm (2.0 in) |
| 1913 | 25.4 mm (1.0 in) |
| 1914 | 45.2 mm (1.8 in) |
| 1917 | 64.8 mm (2.6 in) |
| 1918 | 49.5 mm (1.9 in) |
| 1919 | 65.8 mm (2.6 in) |
| 1920 | 29.7 mm (1.2 in) |
| 1921 | 16.3 mm (0.6 in) |
| 1922 | 20.8 mm (0.8 in) |
| 1923 | 18.5 mm (0.7 in) |
| 1925 | 31.8 mm (1.3 in) |
| 1926 | 39.4 mm (1.6 in) |
| 1927 | 18.0 mm (0.7 in) |
| 1928 | 17.8 mm (0.7 in) |
| 1929 | 24.6 mm (1.0 in) |
| 1930 | 61.0 mm (2.4 in) |
| 1931 | 29.2 mm (1.1 in) |
| 1932 | 21.6 mm (0.9 in) |
| 1933 | 31.8 mm (1.3 in) |
| 1934 | 27.9 mm (1.1 in) |
| 1935 | 24.1 mm (0.9 in) |
| 1936 | 114.3 mm (4.5 in) |
| 1937 | 20.3 mm (0.8 in) |
| 1938 | 19.1 mm (0.8 in) |
| 1939 | 12.7 mm (0.5 in) |
| 1940 | 37.3 mm (1.5 in) |
| 1941 | 35.6 mm (1.4 in) |
| 1942 | 39.6 mm (1.6 in) |
| 1943 | 19.6 mm (0.8 in) |
| 1944 | 19.6 mm (0.8 in) |
| 1945 | 42.2 mm (1.7 in) |
| 1946 | 74.2 mm (2.9 in) |
| 1947 | 13.2 mm (0.5 in) |
| 1948 | 22.6 mm (0.9 in) |
| 1949 | 17.8 mm (0.7 in) |
| 1950 | 14.2 mm (0.6 in) |
| 1951 | 49.5 mm (1.9 in) |
| 1952 | 24.9 mm (1.0 in) |
| 1953 | 21.3 mm (0.8 in) |
| 1954 | 22.9 mm (0.9 in) |
| 1955 | 20.3 mm (0.8 in) |
| 1956 | 47.0 mm (1.9 in) |
| 1957 | 38.1 mm (1.5 in) |
| 1958 | 28.4 mm (1.1 in) |
| 1959 | 28.4 mm (1.1 in) |
| 1960 | 18.5 mm (0.7 in) |
| 1961 | 35.8 mm (1.4 in) |
| 1962 | 24.4 mm (1.0 in) |
| 1963 | 37.6 mm (1.5 in) |
| 1964 | 86.9 mm (3.4 in) |
| 1965 | 26.7 mm (1.1 in) |
| 1966 | 36.1 mm (1.4 in) |
| 1967 | 41.9 mm (1.6 in) |
| 1968 | 32.5 mm (1.3 in) |
| 1969 | 19.6 mm (0.8 in) |
| 1970 | 34.5 mm (1.4 in) |
| 1971 | 66.0 mm (2.6 in) |
| 1972 | 46.7 mm (1.8 in) |
| 1973 | 17.3 mm (0.7 in) |
| 1974 | 36.6 mm (1.4 in) |
| 1975 | 17.3 mm (0.7 in) |
| 1976 | 40.4 mm (1.6 in) |
| 1977 | 15.0 mm (0.6 in) |
| 1978 | 32.5 mm (1.3 in) |
| 1979 | 40.4 mm (1.6 in) |
| 1980 | 23.6 mm (0.9 in) |
| 1981 | 22.9 mm (0.9 in) |
| 1982 | 35.8 mm (1.4 in) |
| 1983 | 116.8 mm (4.6 in) |
| 1984 | 35.6 mm (1.4 in) |
| 1985 | 29.7 mm (1.2 in) |
| 1986 | 46.2 mm (1.8 in) |
| 1987 | 32.8 mm (1.3 in) |
| 1988 | 50.8 mm (2.0 in) |
| 1989 | 29.0 mm (1.1 in) |
| 1990 | 60.7 mm (2.4 in) |
| 1991 | 24.1 mm (0.9 in) |
| 1992 | 28.7 mm (1.1 in) |
| 1993 | 50.8 mm (2.0 in) |
| 1994 | 23.4 mm (0.9 in) |
| 1995 | 35.6 mm (1.4 in) |
| 1996 | 11.2 mm (0.4 in) |
| 1997 | 29.7 mm (1.2 in) |
| 1998 | 38.1 mm (1.5 in) |
| 1999 | 5.1 mm (0.20 in) |
| 2000 | 13.5 mm (0.5 in) |
| 2001 | 25.7 mm (1.0 in) |
| 2002 | 19.1 mm (0.8 in) |
| 2003 | 20.8 mm (0.8 in) |
| 2004 | 24.1 mm (0.9 in) |
| 2005 | 37.8 mm (1.5 in) |
| 2006 | 30.5 mm (1.2 in) |
| 2007 | 26.7 mm (1.1 in) |
| 2008 | 22.9 mm (0.9 in) |
| 2009 | 21.3 mm (0.8 in) |
| 2019 | 23.4 mm (0.9 in) |
| 2020 | 11.2 mm (0.4 in) |
| 2021 | 45.7 mm (1.8 in) |
| 2022 | 42.9 mm (1.7 in) |
| 2023 | 14.7 mm (0.6 in) |
| 2024 | 18.8 mm (0.7 in) |
| 2025 | 13.5 mm (0.5 in) |
| 2026 | 20.6 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1898 | 36.0 mm (1.4 in) |
| 1899 | 22.9 mm (0.9 in) |
| 1900 | 31.8 mm (1.3 in) |
| 1901 | 29.2 mm (1.1 in) |
| 1902 | 43.2 mm (1.7 in) |
| 1903 | 16.8 mm (0.7 in) |
| 1904 | 30.0 mm (1.2 in) |
| 1905 | 84.0 mm (3.3 in) |
| 1906 | 47.0 mm (1.9 in) |
| 1907 | 44.5 mm (1.8 in) |
| 1908 | 44.5 mm (1.8 in) |
| 1909 | 12.2 mm (0.5 in) |
| 1910 | 19.1 mm (0.8 in) |
| 1911 | 33.0 mm (1.3 in) |
| 1912 | 76.2 mm (3.0 in) |
| 1913 | 29.3 mm (1.2 in) |
| 1914 | 59.7 mm (2.4 in) |
| 1917 | 68.4 mm (2.7 in) |
| 1918 | 76.2 mm (3.0 in) |
| 1919 | 70.8 mm (2.8 in) |
| 1920 | 40.7 mm (1.6 in) |
| 1921 | 22.2 mm (0.9 in) |
| 1922 | 54.4 mm (2.1 in) |
| 1923 | 25.9 mm (1.0 in) |
| 1925 | 35.4 mm (1.4 in) |
| 1926 | 41.2 mm (1.6 in) |
| 1927 | 34.5 mm (1.4 in) |
| 1928 | 25.4 mm (1.0 in) |
| 1929 | 29.4 mm (1.2 in) |
| 1930 | 68.6 mm (2.7 in) |
| 1931 | 73.0 mm (2.9 in) |
| 1932 | 32.5 mm (1.3 in) |
| 1933 | 43.1 mm (1.7 in) |
| 1934 | 30.5 mm (1.2 in) |
| 1935 | 49.5 mm (1.9 in) |
| 1936 | 118.1 mm (4.6 in) |
| 1937 | 42.0 mm (1.7 in) |
| 1938 | 36.9 mm (1.5 in) |
| 1939 | 20.3 mm (0.8 in) |
| 1940 | 44.2 mm (1.7 in) |
| 1941 | 49.5 mm (1.9 in) |
| 1942 | 39.6 mm (1.6 in) |
| 1943 | 31.3 mm (1.2 in) |
| 1944 | 31.2 mm (1.2 in) |
| 1945 | 67.1 mm (2.6 in) |
| 1946 | 126.8 mm (5.0 in) |
| 1947 | 13.5 mm (0.5 in) |
| 1948 | 35.0 mm (1.4 in) |
| 1949 | 46.5 mm (1.8 in) |
| 1950 | 17.0 mm (0.7 in) |
| 1951 | 70.1 mm (2.8 in) |
| 1952 | 41.2 mm (1.6 in) |
| 1953 | 24.4 mm (1.0 in) |
| 1954 | 35.9 mm (1.4 in) |
| 1955 | 38.1 mm (1.5 in) |
| 1956 | 47.0 mm (1.9 in) |
| 1957 | 65.5 mm (2.6 in) |
| 1958 | 35.3 mm (1.4 in) |
| 1959 | 43.7 mm (1.7 in) |
| 1960 | 34.5 mm (1.4 in) |
| 1961 | 39.8 mm (1.6 in) |
| 1962 | 35.6 mm (1.4 in) |
| 1963 | 57.4 mm (2.3 in) |
| 1964 | 86.9 mm (3.4 in) |
| 1965 | 61.8 mm (2.4 in) |
| 1966 | 49.5 mm (1.9 in) |
| 1967 | 85.6 mm (3.4 in) |
| 1968 | 53.8 mm (2.1 in) |
| 1969 | 19.6 mm (0.8 in) |
| 1970 | 45.4 mm (1.8 in) |
| 1971 | 69.8 mm (2.7 in) |
| 1972 | 66.5 mm (2.6 in) |
| 1973 | 37.6 mm (1.5 in) |
| 1974 | 38.6 mm (1.5 in) |
| 1975 | 30.3 mm (1.2 in) |
| 1976 | 42.4 mm (1.7 in) |
| 1977 | 36.0 mm (1.4 in) |
| 1978 | 45.5 mm (1.8 in) |
| 1979 | 72.4 mm (2.9 in) |
| 1980 | 27.3 mm (1.1 in) |
| 1981 | 24.5 mm (1.0 in) |
| 1982 | 57.9 mm (2.3 in) |
| 1983 | 130.2 mm (5.1 in) |
| 1984 | 69.6 mm (2.7 in) |
| 1985 | 37.6 mm (1.5 in) |
| 1986 | 54.8 mm (2.2 in) |
| 1987 | 48.0 mm (1.9 in) |
| 1988 | 51.8 mm (2.0 in) |
| 1989 | 33.5 mm (1.3 in) |
| 1990 | 71.9 mm (2.8 in) |
| 1991 | 29.7 mm (1.2 in) |
| 1992 | 47.5 mm (1.9 in) |
| 1993 | 68.9 mm (2.7 in) |
| 1994 | 36.6 mm (1.4 in) |
| 1995 | 49.1 mm (1.9 in) |
| 1996 | 12.7 mm (0.5 in) |
| 1997 | 33.8 mm (1.3 in) |
| 1998 | 46.5 mm (1.8 in) |
| 1999 | 5.1 mm (0.20 in) |
| 2000 | 21.7 mm (0.9 in) |
| 2001 | 30.8 mm (1.2 in) |
| 2002 | 35.0 mm (1.4 in) |
| 2003 | 33.0 mm (1.3 in) |
| 2004 | 45.5 mm (1.8 in) |
| 2005 | 48.2 mm (1.9 in) |
| 2006 | 49.8 mm (2.0 in) |
| 2007 | 40.0 mm (1.6 in) |
| 2008 | 36.0 mm (1.4 in) |
| 2009 | 30.7 mm (1.2 in) |
| 2019 | 42.7 mm (1.7 in) |
| 2020 | 12.5 mm (0.5 in) |
| 2021 | 108.1 mm (4.3 in) |
| 2022 | 58.4 mm (2.3 in) |
| 2023 | 25.9 mm (1.0 in) |
| 2024 | 29.0 mm (1.1 in) |
| 2025 | 35.6 mm (1.4 in) |
| 2026 | 28.0 mm (1.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1898 | 79 days |
| 1899 | 118 days |
| 1900 | 75 days |
| 1901 | 91 days |
| 1902 | 135 days |
| 1903 | 95 days |
| 1904 | 114 days |
| 1905 | 60 days |
| 1906 | 95 days |
| 1907 | 94 days |
| 1908 | 81 days |
| 1909 | 96 days |
| 1910 | 98 days |
| 1911 | 65 days |
| 1912 | 68 days |
| 1913 | 128 days |
| 1914 | 63 days |
| 1917 | 112 days |
| 1918 | 70 days |
| 1919 | 37 days |
| 1920 | 20 days |
| 1921 | 99 days |
| 1922 | 114 days |
| 1923 | 45 days |
| 1925 | 29 days |
| 1926 | 45 days |
| 1927 | 53 days |
| 1928 | 148 days |
| 1929 | 75 days |
| 1930 | 63 days |
| 1931 | 61 days |
| 1932 | 50 days |
| 1933 | 69 days |
| 1934 | 79 days |
| 1935 | 74 days |
| 1936 | 105 days |
| 1937 | 81 days |
| 1938 | 74 days |
| 1939 | 64 days |
| 1940 | 74 days |
| 1941 | 66 days |
| 1942 | 83 days |
| 1943 | 149 days |
| 1944 | 52 days |
| 1945 | 104 days |
| 1946 | 64 days |
| 1947 | 83 days |
| 1948 | 80 days |
| 1949 | 76 days |
| 1950 | 124 days |
| 1951 | 61 days |
| 1952 | 49 days |
| 1953 | 61 days |
| 1954 | 63 days |
| 1955 | 85 days |
| 1956 | 75 days |
| 1957 | 35 days |
| 1958 | 66 days |
| 1959 | 90 days |
| 1960 | 74 days |
| 1961 | 94 days |
| 1962 | 66 days |
| 1963 | 84 days |
| 1964 | 70 days |
| 1965 | 41 days |
| 1966 | 87 days |
| 1967 | 64 days |
| 1968 | 82 days |
| 1969 | 64 days |
| 1970 | 84 days |
| 1971 | 95 days |
| 1972 | 150 days |
| 1973 | 97 days |
| 1974 | 107 days |
| 1975 | 96 days |
| 1976 | 73 days |
| 1977 | 97 days |
| 1978 | 80 days |
| 1979 | 65 days |
| 1980 | 70 days |
| 1981 | 57 days |
| 1982 | 61 days |
| 1983 | 80 days |
| 1984 | 91 days |
| 1985 | 110 days |
| 1986 | 58 days |
| 1987 | 81 days |
| 1988 | 57 days |
| 1989 | 94 days |
| 1990 | 38 days |
| 1991 | 73 days |
| 1992 | 51 days |
| 1993 | 104 days |
| 1994 | 53 days |
| 1995 | 85 days |
| 1996 | 47 days |
| 1997 | 50 days |
| 1998 | 99 days |
| 1999 | 61 days |
| 2000 | 61 days |
| 2001 | 64 days |
| 2002 | 93 days |
| 2003 | 96 days |
| 2004 | 100 days |
| 2005 | 82 days |
| 2006 | 79 days |
| 2007 | 98 days |
| 2008 | 95 days |
| 2009 | 81 days |
| 2019 | 29 days |
| 2020 | 51 days |
| 2021 | 44 days |
| 2022 | 40 days |
| 2023 | 109 days |
| 2024 | 44 days |
| 2025 | 31 days |
| 2026 | 39 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
58 years with a frostAcross 58 years with a frost, the median last spring frost at Casa Grande falls on 1 March and the median first autumn frost on 26 November, which leaves a median of 278 days between them.
Fitted over all years, the growing season changes by +4.0 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1967 to 2023) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 1 March | n/a | 20 February | n/a | -2.5 days per decade |
| First autumn frost | 26 November | n/a | 28 November | n/a | +1.5 days per decade |
| Growing days | 278 days | n/a | 284 days | n/a | +4.0 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
94 years, 1899 to 2025A day with at least 29.0 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 101.6 mm (4.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 29.0 mm (1.1 in) | |
| 5 years | 43.1 mm (1.7 in) | |
| 10 years | 54.3 mm (2.1 in) | |
| 25 years | 70.9 mm (2.8 in) | |
| 50 years | 85.3 mm (3.4 in) | |
| 100 years | 101.6 mm (4.0 in) | Longer than the 94 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, 94 years of values from 1899 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: 116.8 mm (4.6 in) in 1983; 114.3 mm (4.5 in) in 1936; 86.9 mm (3.4 in) in 1964.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).