Montezuma Castle Nm Weather Records (USC00025635)
Record envelope, standing records and threshold days for Montezuma Castle Nm (USC00025635), Arizona, United States, with 89 years of record.
Key Facts for Montezuma Castle Nm
- Montezuma Castle Nm (USC00025635) is a weather station in Arizona, United States at 34.61 latitude and -111.84 longitude, 969 m (3,180 ft) above sea level.
- The station reports from 1938 to 2026, 89 years of record.
- 1,464 records set at Montezuma Castle Nm still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Montezuma Castle Nm set a daily record precipitation of 48.3 mm (1.9 in) on 29 September 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, 34.61 latitude, -111.84 longitude.
- Elevation: 969 m (3,180 ft).
- Period of record: 1938 to 2026, 89 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
21 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) | -18.3 C (-0.9 F) | 23.3 C (73.9 F) | -8.3 C (17.1 F) |
| Feb | 31.7 C (89.1 F) | -15.6 C (3.9 F) | 30.0 C (86.0 F) | -4.4 C (24.1 F) |
| Mar | 38.3 C (100.9 F) | -11.1 C (12.0 F) | 38.3 C (100.9 F) | -1.1 C (30.0 F) |
| Apr | 37.2 C (99.0 F) | -8.9 C (16.0 F) | 32.8 C (91.0 F) | -1.1 C (30.0 F) |
| May | 42.8 C (109.0 F) | -4.4 C (24.1 F) | 39.4 C (102.9 F) | 3.3 C (37.9 F) |
| Jun | 47.2 C (117.0 F) | 2.2 C (36.0 F) | 42.2 C (108.0 F) | 6.1 C (43.0 F) |
| Jul | 47.2 C (117.0 F) | 7.2 C (45.0 F) | 43.3 C (109.9 F) | 9.4 C (48.9 F) |
| Aug | 47.8 C (118.0 F) | 3.9 C (39.0 F) | 43.9 C (111.0 F) | 16.1 C (61.0 F) |
| Sep | 43.9 C (111.0 F) | -0.6 C (30.9 F) | 34.4 C (93.9 F) | 12.8 C (55.0 F) |
| Oct | 40.6 C (105.1 F) | -7.2 C (19.0 F) | n/a | n/a |
| Nov | 32.2 C (90.0 F) | -13.3 C (8.1 F) | n/a | n/a |
| Dec | 25.6 C (78.1 F) | -15.6 C (3.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1938 | 7 |
| 1939 | 14 |
| 1940 | 14 |
| 1941 | 9 |
| 1942 | 11 |
| 1943 | 19 |
| 1944 | 22 |
| 1945 | 26 |
| 1946 | 17 |
| 1947 | 16 |
| 1948 | 21 |
| 1949 | 41 |
| 1950 | 32 |
| 1951 | 24 |
| 1952 | 8 |
| 1953 | 16 |
| 1954 | 17 |
| 1955 | 23 |
| 1956 | 30 |
| 1957 | 18 |
| 1958 | 10 |
| 1959 | 19 |
| 1960 | 13 |
| 1961 | 13 |
| 1962 | 16 |
| 1963 | 19 |
| 1964 | 28 |
| 1965 | 25 |
| 1966 | 16 |
| 1967 | 24 |
| 1968 | 14 |
| 1969 | 21 |
| 1970 | 21 |
| 1971 | 41 |
| 1972 | 18 |
| 1973 | 19 |
| 1974 | 17 |
| 1975 | 20 |
| 1976 | 11 |
| 1977 | 18 |
| 1978 | 12 |
| 1979 | 8 |
| 1980 | 25 |
| 1981 | 11 |
| 1982 | 15 |
| 1983 | 9 |
| 1984 | 13 |
| 1985 | 15 |
| 1986 | 21 |
| 1987 | 10 |
| 1988 | 12 |
| 1989 | 17 |
| 1990 | 16 |
| 1991 | 15 |
| 1992 | 6 |
| 1993 | 11 |
| 1994 | 11 |
| 1995 | 13 |
| 1996 | 19 |
| 1997 | 18 |
| 1998 | 10 |
| 1999 | 10 |
| 2000 | 12 |
| 2001 | 15 |
| 2002 | 16 |
| 2003 | 22 |
| 2004 | 5 |
| 2005 | 14 |
| 2006 | 20 |
| 2007 | 24 |
| 2008 | 11 |
| 2009 | 16 |
| 2010 | 16 |
| 2011 | 18 |
| 2012 | 10 |
| 2013 | 20 |
| 2014 | 5 |
| 2015 | 14 |
| 2016 | 12 |
| 2017 | 11 |
| 2018 | 8 |
| 2019 | 17 |
| 2020 | 27 |
| 2021 | 15 |
| 2022 | 11 |
| 2023 | 7 |
| 2024 | 15 |
| 2025 | 17 |
| 2026 | 21 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1970-06-25 | Record high maximum temperature | Record high maximum temperature 47.2 C (117.0 F) |
| 2004-08-12 | Record high maximum temperature | Record high maximum temperature 47.8 C (118.0 F) |
Wettest Day of Each Month
Sep: 83.6 mm (3.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 42.9 mm (1.7 in) | 21 January 2010 |
| Feb | 66.8 mm (2.6 in) | 28 February 1991 |
| Mar | 28.4 mm (1.1 in) | 29 March 1961 |
| Apr | 46.0 mm (1.8 in) | 22 April 1988 |
| May | 34.3 mm (1.4 in) | 10 May 1944 |
| Jun | 50.8 mm (2.0 in) | 13 June 1955 |
| Jul | 55.9 mm (2.2 in) | 7 July 1950 |
| Aug | 75.2 mm (3.0 in) | 2 August 1943 |
| Sep | 83.6 mm (3.3 in) | 12 September 1958 |
| Oct | 66.0 mm (2.6 in) | 2 October 1981 |
| Nov | 50.8 mm (2.0 in) | 29 November 1981 |
| Dec | 53.1 mm (2.1 in) | 31 December 2004 |
Period of Record Coverage
1938 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1938 | 81 | 22% | No |
| 1939 | 351 | 96% | Yes |
| 1940 | 362 | 99% | Yes |
| 1941 | 343 | 94% | Yes |
| 1942 | 360 | 99% | Yes |
| 1943 | 357 | 98% | Yes |
| 1944 | 362 | 99% | Yes |
| 1945 | 355 | 97% | Yes |
| 1946 | 361 | 99% | Yes |
| 1947 | 361 | 99% | Yes |
| 1948 | 361 | 99% | Yes |
| 1949 | 339 | 93% | Yes |
| 1950 | 355 | 97% | Yes |
| 1951 | 353 | 97% | Yes |
| 1952 | 355 | 97% | Yes |
| 1953 | 347 | 95% | Yes |
| 1954 | 334 | 92% | Yes |
| 1955 | 354 | 97% | Yes |
| 1956 | 350 | 96% | Yes |
| 1957 | 331 | 91% | Yes |
| 1958 | 358 | 98% | Yes |
| 1959 | 357 | 98% | Yes |
| 1960 | 363 | 99% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 359 | 98% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 363 | 99% | Yes |
| 1974 | 362 | 99% | Yes |
| 1975 | 362 | 99% | Yes |
| 1976 | 362 | 99% | Yes |
| 1977 | 358 | 98% | Yes |
| 1978 | 356 | 98% | Yes |
| 1979 | 357 | 98% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 358 | 98% | Yes |
| 1982 | 340 | 93% | Yes |
| 1983 | 317 | 87% | No |
| 1984 | 315 | 86% | No |
| 1985 | 312 | 85% | No |
| 1986 | 348 | 95% | Yes |
| 1987 | 359 | 98% | Yes |
| 1988 | 361 | 99% | Yes |
| 1989 | 362 | 99% | Yes |
| 1990 | 336 | 92% | Yes |
| 1991 | 359 | 98% | Yes |
| 1992 | 362 | 99% | Yes |
| 1993 | 359 | 98% | Yes |
| 1994 | 364 | 100% | Yes |
| 1995 | 346 | 95% | Yes |
| 1996 | 359 | 98% | Yes |
| 1997 | 361 | 99% | Yes |
| 1998 | 362 | 99% | Yes |
| 1999 | 354 | 97% | Yes |
| 2000 | 362 | 99% | Yes |
| 2001 | 363 | 99% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 331 | 90% | Yes |
| 2005 | 333 | 91% | Yes |
| 2006 | 362 | 99% | Yes |
| 2007 | 358 | 98% | Yes |
| 2008 | 318 | 87% | No |
| 2009 | 332 | 91% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 359 | 98% | Yes |
| 2012 | 363 | 99% | Yes |
| 2013 | 361 | 99% | Yes |
| 2014 | 360 | 99% | Yes |
| 2015 | 357 | 98% | Yes |
| 2016 | 360 | 98% | Yes |
| 2017 | 361 | 99% | Yes |
| 2018 | 333 | 91% | Yes |
| 2019 | 336 | 92% | Yes |
| 2020 | 349 | 95% | Yes |
| 2021 | 364 | 100% | Yes |
| 2022 | 342 | 94% | Yes |
| 2023 | 348 | 95% | Yes |
| 2024 | 319 | 87% | No |
| 2025 | 331 | 91% | Yes |
| 2026 | 235 | 64% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 29 September 2026 | Montezuma Castle Nm, US | daily rain (Provisional) | 48.3 mm (1.9 in) | 11.0 mm (0.4 in) | 43 years | 29 of 100 (Routine) |
| 28 August 2026 | Montezuma Castle Nm, US | daily high max (Provisional) | 43.3 C (109.9 F) | 1.1 C (2.0 F) | 7 years | 13 of 100 (Routine) |
| 27 August 2026 | Montezuma Castle Nm, US | daily high max (Provisional) | 43.9 C (111.0 F) | 1.1 C (2.0 F) | 24 years | 18 of 100 (Routine) |
| 11 August 2026 | Montezuma Castle Nm, US | daily high min | 23.9 C (75.0 F) | 1.1 C (2.0 F) | 20 years | 18 of 100 (Routine) |
| 9 August 2026 | Montezuma Castle Nm, US | daily high min (Tie) | 22.8 C (73.0 F) | tie | 28 years | 4 of 100 (Routine) |
| 7 August 2026 | Montezuma Castle Nm, US | daily rain | 33.0 mm (1.3 in) | 16.5 mm (0.6 in) | 76 years | 50 of 100 (Notable) |
| 26 July 2026 | Montezuma Castle Nm, US | daily high max (Tie) | 43.3 C (109.9 F) | tie | 3 years | 2 of 100 (Routine) |
| 26 June 2026 | Montezuma Castle Nm, US | daily high min | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 44 years | 22 of 100 (Routine) |
| 15 June 2026 | Montezuma Castle Nm, US | daily rain | 0.8 mm (0.03 in) | 0.8 mm (0.03 in) | 87 years | 20 of 100 (Routine) |
| 26 May 2026 | Montezuma Castle Nm, US | daily rain | 8.6 mm (0.34 in) | 6.3 mm (0.25 in) | 61 years | 20 of 100 (Routine) |
| 31 March 2026 | Montezuma Castle Nm, US | daily high min | 12.8 C (55.0 F) | 1.1 C (2.0 F) | 55 years | 27 of 100 (Routine) |
| 30 March 2026 | Montezuma Castle Nm, US | daily high min | 12.8 C (55.0 F) | 3.4 C (6.1 F) | 1 year | 17 of 100 (Routine) |
| 29 March 2026 | Montezuma Castle Nm, US | daily high max (Tie) | 31.7 C (89.1 F) | tie | 55 years | 6 of 100 (Routine) |
| 28 March 2026 | Montezuma Castle Nm, US | daily high max | 35.6 C (96.1 F) | 3.4 C (6.1 F) | 11 years | 17 of 100 (Routine) |
| 27 March 2026 | Montezuma Castle Nm, US | daily high max | 35.0 C (95.0 F) | 2.8 C (5.0 F) | 7 years | 15 of 100 (Routine) |
| 26 March 2026 | Montezuma Castle Nm, US | daily high max | 35.0 C (95.0 F) | 1.7 C (3.1 F) | 0 years | 11 of 100 (Routine) |
| 25 March 2026 | Montezuma Castle Nm, US | daily high max | 34.4 C (93.9 F) | 3.3 C (5.9 F) | 0 years | 14 of 100 (Routine) |
| 24 March 2026 | Montezuma Castle Nm, US | daily high max | 33.9 C (93.0 F) | 2.2 C (4.0 F) | 85 years | 37 of 100 (Notable) |
| 23 March 2026 | Montezuma Castle Nm, US | daily high max | 37.8 C (100.0 F) | 7.2 C (13.0 F) | 69 years | 41 of 100 (Notable) |
| 22 March 2026 | Montezuma Castle Nm, US | daily high max | 37.8 C (100.0 F) | 5.0 C (9.0 F) | 21 years | 23 of 100 (Routine) |
Climate Trend
76 complete years, 1939 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1939 | 16.6 C | +0.09 C |
| 1940 | 17.2 C | +0.75 C |
| 1942 | 16.2 C | -0.31 C |
| 1943 | 16.8 C | +0.35 C |
| 1944 | 15.6 C | -0.89 C |
| 1945 | 15.7 C | -0.77 C |
| 1946 | 15.4 C | -1.09 C |
| 1947 | 16.3 C | -0.14 C |
| 1948 | 15.7 C | -0.74 C |
| 1949 | 15.4 C | -1.08 C |
| 1951 | 15.8 C | -0.65 C |
| 1953 | 16.1 C | -0.40 C |
| 1954 | 17.0 C | +0.51 C |
| 1955 | 15.8 C | -0.68 C |
| 1956 | 16.3 C | -0.15 C |
| 1958 | 16.7 C | +0.21 C |
| 1959 | 16.9 C | +0.47 C |
| 1960 | 16.5 C | +0.04 C |
| 1961 | 16.6 C | +0.08 C |
| 1962 | 16.8 C | +0.34 C |
| 1963 | 16.8 C | +0.36 C |
| 1964 | 15.6 C | -0.85 C |
| 1965 | 15.8 C | -0.71 C |
| 1966 | 16.4 C | -0.09 C |
| 1967 | 16.1 C | -0.36 C |
| 1968 | 15.6 C | -0.86 C |
| 1969 | 16.4 C | -0.04 C |
| 1970 | 15.8 C | -0.68 C |
| 1971 | 15.5 C | -1.01 C |
| 1972 | 16.6 C | +0.11 C |
| 1973 | 15.5 C | -0.99 C |
| 1974 | 16.1 C | -0.39 C |
| 1975 | 15.4 C | -1.11 C |
| 1976 | 16.1 C | -0.40 C |
| 1977 | 16.8 C | +0.33 C |
| 1978 | 16.9 C | +0.42 C |
| 1979 | 15.9 C | -0.55 C |
| 1980 | 16.8 C | +0.28 C |
| 1981 | 17.2 C | +0.71 C |
| 1982 | 16.0 C | -0.45 C |
| 1983 | 16.3 C | -0.21 C |
| 1984 | 16.5 C | -0.02 C |
| 1986 | 16.7 C | +0.26 C |
| 1987 | 16.1 C | -0.37 C |
| 1988 | 16.6 C | +0.15 C |
| 1989 | 17.2 C | +0.76 C |
| 1990 | 16.4 C | -0.10 C |
| 1991 | 16.3 C | -0.21 C |
| 1992 | 16.2 C | -0.24 C |
| 1993 | 16.3 C | -0.21 C |
| 1994 | 16.7 C | +0.19 C |
| 1996 | 17.3 C | +0.86 C |
| 1997 | 16.3 C | -0.17 C |
| 1998 | 15.4 C | -1.06 C |
| 1999 | 16.2 C | -0.26 C |
| 2000 | 16.6 C | +0.17 C |
| 2001 | 17.2 C | +0.69 C |
| 2002 | 17.3 C | +0.81 C |
| 2006 | 17.0 C | +0.51 C |
| 2007 | 17.2 C | +0.77 C |
| 2008 | 17.2 C | +0.70 C |
| 2009 | 17.2 C | +0.73 C |
| 2010 | 16.9 C | +0.43 C |
| 2011 | 16.5 C | -0.01 C |
| 2012 | 17.0 C | +0.49 C |
| 2013 | 16.2 C | -0.26 C |
| 2014 | 17.1 C | +0.63 C |
| 2015 | 17.1 C | +0.64 C |
| 2016 | 17.2 C | +0.68 C |
| 2017 | 17.3 C | +0.87 C |
| 2020 | 17.1 C | +0.64 C |
| 2021 | 17.0 C | +0.54 C |
| 2022 | 16.8 C | +0.35 C |
| 2023 | 16.4 C | -0.05 C |
| 2024 | 17.1 C | +0.62 C |
| 2025 | 17.2 C | +0.75 C |
The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1939 to 2025. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 76 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.1 C (0.1 to 0.2) per decade | 0.2 F (0.1 to 0.3) per decade | 1939 to 2025 | 76 | Rise |
| Mean daily maximum | 0.09 C (0.03 to 0.15) per decade | 0.16 F (0.05 to 0.28) per decade | 1939 to 2025 | 76 | Rise |
| Mean daily minimum | 0.1 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1939 to 2025 | 76 | 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
1938 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 47.8 C (118.0 F) | 2004 | 43.9 C (111.0 F) | 89 |
| Coldest night (TNn) | -18.3 C (-0.9 F) | 1963 | -10.6 C (12.9 F) | 89 |
| Wettest day (Rx1day) | 83.6 mm (3.3 in) | 1958 | 36.1 mm (1.4 in) | 89 |
| Wettest five days (Rx5day) | 120.2 mm (4.7 in) | 2002 | 50.1 mm (2.0 in) | 89 |
| Longest dry spell (CDD) | 155 days | 1972 | 63 days | 89 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1938 | 32.8 C (91.0 F) |
| 1939 | 43.3 C (109.9 F) |
| 1940 | 43.3 C (109.9 F) |
| 1941 | 41.1 C (106.0 F) |
| 1942 | 45.0 C (113.0 F) |
| 1943 | 44.4 C (111.9 F) |
| 1944 | 42.8 C (109.0 F) |
| 1945 | 43.3 C (109.9 F) |
| 1946 | 42.2 C (108.0 F) |
| 1947 | 43.3 C (109.9 F) |
| 1948 | 43.9 C (111.0 F) |
| 1949 | 43.3 C (109.9 F) |
| 1950 | 46.1 C (115.0 F) |
| 1951 | 43.9 C (111.0 F) |
| 1952 | 42.2 C (108.0 F) |
| 1953 | 44.4 C (111.9 F) |
| 1954 | 43.9 C (111.0 F) |
| 1955 | 43.9 C (111.0 F) |
| 1956 | 43.9 C (111.0 F) |
| 1957 | 43.9 C (111.0 F) |
| 1958 | 45.6 C (114.1 F) |
| 1959 | 43.9 C (111.0 F) |
| 1960 | 44.4 C (111.9 F) |
| 1961 | 44.4 C (111.9 F) |
| 1962 | 43.9 C (111.0 F) |
| 1963 | 42.8 C (109.0 F) |
| 1964 | 42.8 C (109.0 F) |
| 1965 | 42.2 C (108.0 F) |
| 1966 | 42.2 C (108.0 F) |
| 1967 | 45.6 C (114.1 F) |
| 1968 | 42.8 C (109.0 F) |
| 1969 | 43.9 C (111.0 F) |
| 1970 | 47.2 C (117.0 F) |
| 1971 | 45.0 C (113.0 F) |
| 1972 | 44.4 C (111.9 F) |
| 1973 | 45.6 C (114.1 F) |
| 1974 | 44.4 C (111.9 F) |
| 1975 | 42.8 C (109.0 F) |
| 1976 | 42.8 C (109.0 F) |
| 1977 | 45.0 C (113.0 F) |
| 1978 | 44.4 C (111.9 F) |
| 1979 | 43.9 C (111.0 F) |
| 1980 | 45.6 C (114.1 F) |
| 1981 | 45.0 C (113.0 F) |
| 1982 | 42.2 C (108.0 F) |
| 1983 | 43.3 C (109.9 F) |
| 1984 | 43.3 C (109.9 F) |
| 1985 | 43.9 C (111.0 F) |
| 1986 | 41.7 C (107.1 F) |
| 1987 | 42.8 C (109.0 F) |
| 1988 | 42.8 C (109.0 F) |
| 1989 | 44.4 C (111.9 F) |
| 1990 | 45.6 C (114.1 F) |
| 1991 | 42.8 C (109.0 F) |
| 1992 | 41.7 C (107.1 F) |
| 1993 | 42.2 C (108.0 F) |
| 1994 | 45.0 C (113.0 F) |
| 1995 | 46.1 C (115.0 F) |
| 1996 | 43.9 C (111.0 F) |
| 1997 | 43.9 C (111.0 F) |
| 1998 | 43.9 C (111.0 F) |
| 1999 | 41.1 C (106.0 F) |
| 2000 | 44.4 C (111.9 F) |
| 2001 | 43.9 C (111.0 F) |
| 2002 | 45.0 C (113.0 F) |
| 2003 | 47.2 C (117.0 F) |
| 2004 | 47.8 C (118.0 F) |
| 2005 | 46.1 C (115.0 F) |
| 2006 | 44.4 C (111.9 F) |
| 2007 | 45.0 C (113.0 F) |
| 2008 | 42.8 C (109.0 F) |
| 2009 | 44.4 C (111.9 F) |
| 2010 | 42.8 C (109.0 F) |
| 2011 | 44.4 C (111.9 F) |
| 2012 | 42.2 C (108.0 F) |
| 2013 | 46.1 C (115.0 F) |
| 2014 | 41.7 C (107.1 F) |
| 2015 | 43.3 C (109.9 F) |
| 2016 | 46.1 C (115.0 F) |
| 2017 | 45.6 C (114.1 F) |
| 2018 | 44.4 C (111.9 F) |
| 2019 | 42.2 C (108.0 F) |
| 2020 | 45.6 C (114.1 F) |
| 2021 | 46.1 C (115.0 F) |
| 2022 | 43.9 C (111.0 F) |
| 2023 | 45.6 C (114.1 F) |
| 2024 | 44.4 C (111.9 F) |
| 2025 | 43.9 C (111.0 F) |
| 2026 | 43.9 C (111.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1938 | -10.0 C (14.0 F) |
| 1939 | -10.0 C (14.0 F) |
| 1940 | -7.2 C (19.0 F) |
| 1941 | -7.8 C (18.0 F) |
| 1942 | -9.4 C (15.1 F) |
| 1943 | -11.7 C (10.9 F) |
| 1944 | -8.9 C (16.0 F) |
| 1945 | -11.1 C (12.0 F) |
| 1946 | -13.9 C (7.0 F) |
| 1947 | -12.8 C (9.0 F) |
| 1948 | -13.3 C (8.1 F) |
| 1949 | -16.1 C (3.0 F) |
| 1950 | -14.4 C (6.1 F) |
| 1951 | -11.7 C (10.9 F) |
| 1952 | -8.9 C (16.0 F) |
| 1953 | -12.8 C (9.0 F) |
| 1954 | -12.2 C (10.0 F) |
| 1955 | -11.7 C (10.9 F) |
| 1956 | -13.3 C (8.1 F) |
| 1957 | -9.4 C (15.1 F) |
| 1958 | -11.7 C (10.9 F) |
| 1959 | -12.2 C (10.0 F) |
| 1960 | -11.7 C (10.9 F) |
| 1961 | -11.7 C (10.9 F) |
| 1962 | -12.8 C (9.0 F) |
| 1963 | -18.3 C (-0.9 F) |
| 1964 | -13.3 C (8.1 F) |
| 1965 | -10.6 C (12.9 F) |
| 1966 | -13.3 C (8.1 F) |
| 1967 | -13.9 C (7.0 F) |
| 1968 | -13.3 C (8.1 F) |
| 1969 | -10.0 C (14.0 F) |
| 1970 | -13.3 C (8.1 F) |
| 1971 | -16.7 C (1.9 F) |
| 1972 | -12.2 C (10.0 F) |
| 1973 | -9.4 C (15.1 F) |
| 1974 | -14.4 C (6.1 F) |
| 1975 | -10.6 C (12.9 F) |
| 1976 | -11.7 C (10.9 F) |
| 1977 | -10.0 C (14.0 F) |
| 1978 | -13.9 C (7.0 F) |
| 1979 | -13.9 C (7.0 F) |
| 1980 | -7.8 C (18.0 F) |
| 1981 | -8.9 C (16.0 F) |
| 1982 | -10.6 C (12.9 F) |
| 1983 | -8.9 C (16.0 F) |
| 1984 | -10.6 C (12.9 F) |
| 1985 | -13.3 C (8.1 F) |
| 1986 | -7.8 C (18.0 F) |
| 1987 | -11.7 C (10.9 F) |
| 1988 | -11.7 C (10.9 F) |
| 1989 | -11.1 C (12.0 F) |
| 1990 | -15.6 C (3.9 F) |
| 1991 | -9.4 C (15.1 F) |
| 1992 | -8.9 C (16.0 F) |
| 1993 | -9.4 C (15.1 F) |
| 1994 | -8.9 C (16.0 F) |
| 1995 | -5.6 C (21.9 F) |
| 1996 | -10.0 C (14.0 F) |
| 1997 | -8.3 C (17.1 F) |
| 1998 | -8.3 C (17.1 F) |
| 1999 | -7.8 C (18.0 F) |
| 2000 | -8.3 C (17.1 F) |
| 2001 | -8.9 C (16.0 F) |
| 2002 | -11.1 C (12.0 F) |
| 2003 | -10.0 C (14.0 F) |
| 2004 | -8.3 C (17.1 F) |
| 2005 | -11.1 C (12.0 F) |
| 2006 | -13.9 C (7.0 F) |
| 2007 | -12.2 C (10.0 F) |
| 2008 | -10.0 C (14.0 F) |
| 2009 | -9.4 C (15.1 F) |
| 2010 | -8.9 C (16.0 F) |
| 2011 | -15.6 C (3.9 F) |
| 2012 | -8.9 C (16.0 F) |
| 2013 | -14.4 C (6.1 F) |
| 2014 | -8.9 C (16.0 F) |
| 2015 | -11.7 C (10.9 F) |
| 2016 | -9.4 C (15.1 F) |
| 2017 | -8.3 C (17.1 F) |
| 2018 | -8.9 C (16.0 F) |
| 2019 | -9.4 C (15.1 F) |
| 2020 | -10.0 C (14.0 F) |
| 2021 | -10.0 C (14.0 F) |
| 2022 | -9.4 C (15.1 F) |
| 2023 | -8.9 C (16.0 F) |
| 2024 | -10.6 C (12.9 F) |
| 2025 | -12.2 C (10.0 F) |
| 2026 | -8.3 C (17.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1938 | 24.1 mm (0.9 in) |
| 1939 | 31.8 mm (1.3 in) |
| 1940 | 42.7 mm (1.7 in) |
| 1941 | 43.7 mm (1.7 in) |
| 1942 | 22.4 mm (0.9 in) |
| 1943 | 75.2 mm (3.0 in) |
| 1944 | 34.3 mm (1.4 in) |
| 1945 | 20.8 mm (0.8 in) |
| 1946 | 33.3 mm (1.3 in) |
| 1947 | 25.7 mm (1.0 in) |
| 1948 | 19.6 mm (0.8 in) |
| 1949 | 31.0 mm (1.2 in) |
| 1950 | 55.9 mm (2.2 in) |
| 1951 | 54.6 mm (2.1 in) |
| 1952 | 34.8 mm (1.4 in) |
| 1953 | 23.1 mm (0.9 in) |
| 1954 | 51.8 mm (2.0 in) |
| 1955 | 50.8 mm (2.0 in) |
| 1956 | 17.8 mm (0.7 in) |
| 1957 | 36.6 mm (1.4 in) |
| 1958 | 83.6 mm (3.3 in) |
| 1959 | 26.9 mm (1.1 in) |
| 1960 | 23.9 mm (0.9 in) |
| 1961 | 49.0 mm (1.9 in) |
| 1962 | 17.0 mm (0.7 in) |
| 1963 | 24.6 mm (1.0 in) |
| 1964 | 26.7 mm (1.1 in) |
| 1965 | 50.0 mm (2.0 in) |
| 1966 | 14.7 mm (0.6 in) |
| 1967 | 35.1 mm (1.4 in) |
| 1968 | 23.9 mm (0.9 in) |
| 1969 | 27.4 mm (1.1 in) |
| 1970 | 74.9 mm (2.9 in) |
| 1971 | 32.0 mm (1.3 in) |
| 1972 | 53.1 mm (2.1 in) |
| 1973 | 20.1 mm (0.8 in) |
| 1974 | 29.5 mm (1.2 in) |
| 1975 | 21.3 mm (0.8 in) |
| 1976 | 48.3 mm (1.9 in) |
| 1977 | 37.3 mm (1.5 in) |
| 1978 | 40.6 mm (1.6 in) |
| 1979 | 45.7 mm (1.8 in) |
| 1980 | 38.4 mm (1.5 in) |
| 1981 | 66.0 mm (2.6 in) |
| 1982 | 25.9 mm (1.0 in) |
| 1983 | 37.3 mm (1.5 in) |
| 1984 | 28.7 mm (1.1 in) |
| 1985 | 50.3 mm (2.0 in) |
| 1986 | 46.7 mm (1.8 in) |
| 1987 | 46.0 mm (1.8 in) |
| 1988 | 46.0 mm (1.8 in) |
| 1989 | 35.6 mm (1.4 in) |
| 1990 | 38.9 mm (1.5 in) |
| 1991 | 66.8 mm (2.6 in) |
| 1992 | 71.1 mm (2.8 in) |
| 1993 | 36.8 mm (1.4 in) |
| 1994 | 58.2 mm (2.3 in) |
| 1995 | 51.6 mm (2.0 in) |
| 1996 | 23.6 mm (0.9 in) |
| 1997 | 31.2 mm (1.2 in) |
| 1998 | 27.4 mm (1.1 in) |
| 1999 | 59.9 mm (2.4 in) |
| 2000 | 50.3 mm (2.0 in) |
| 2001 | 23.6 mm (0.9 in) |
| 2002 | 40.9 mm (1.6 in) |
| 2003 | 36.1 mm (1.4 in) |
| 2004 | 53.1 mm (2.1 in) |
| 2005 | 37.1 mm (1.5 in) |
| 2006 | 35.8 mm (1.4 in) |
| 2007 | 44.5 mm (1.8 in) |
| 2008 | 27.9 mm (1.1 in) |
| 2009 | 28.4 mm (1.1 in) |
| 2010 | 48.3 mm (1.9 in) |
| 2011 | 34.0 mm (1.3 in) |
| 2012 | 22.9 mm (0.9 in) |
| 2013 | 34.3 mm (1.4 in) |
| 2014 | 40.6 mm (1.6 in) |
| 2015 | 41.9 mm (1.6 in) |
| 2016 | 26.4 mm (1.0 in) |
| 2017 | 73.7 mm (2.9 in) |
| 2018 | 38.1 mm (1.5 in) |
| 2019 | 24.1 mm (0.9 in) |
| 2020 | 23.9 mm (0.9 in) |
| 2021 | 45.7 mm (1.8 in) |
| 2022 | 24.4 mm (1.0 in) |
| 2023 | 26.9 mm (1.1 in) |
| 2024 | 27.9 mm (1.1 in) |
| 2025 | 39.4 mm (1.6 in) |
| 2026 | 48.3 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1938 | 55.5 mm (2.2 in) |
| 1939 | 38.4 mm (1.5 in) |
| 1940 | 45.2 mm (1.8 in) |
| 1941 | 69.1 mm (2.7 in) |
| 1942 | 34.5 mm (1.4 in) |
| 1943 | 88.9 mm (3.5 in) |
| 1944 | 51.0 mm (2.0 in) |
| 1945 | 29.2 mm (1.1 in) |
| 1946 | 39.4 mm (1.6 in) |
| 1947 | 33.3 mm (1.3 in) |
| 1948 | 33.3 mm (1.3 in) |
| 1949 | 56.4 mm (2.2 in) |
| 1950 | 68.1 mm (2.7 in) |
| 1951 | 77.2 mm (3.0 in) |
| 1952 | 63.0 mm (2.5 in) |
| 1953 | 48.2 mm (1.9 in) |
| 1954 | 62.8 mm (2.5 in) |
| 1955 | 59.7 mm (2.4 in) |
| 1956 | 20.6 mm (0.8 in) |
| 1957 | 55.1 mm (2.2 in) |
| 1958 | 88.4 mm (3.5 in) |
| 1959 | 34.3 mm (1.4 in) |
| 1960 | 38.8 mm (1.5 in) |
| 1961 | 49.0 mm (1.9 in) |
| 1962 | 30.5 mm (1.2 in) |
| 1963 | 42.9 mm (1.7 in) |
| 1964 | 37.1 mm (1.5 in) |
| 1965 | 71.4 mm (2.8 in) |
| 1966 | 24.6 mm (1.0 in) |
| 1967 | 80.6 mm (3.2 in) |
| 1968 | 29.2 mm (1.1 in) |
| 1969 | 31.7 mm (1.2 in) |
| 1970 | 91.9 mm (3.6 in) |
| 1971 | 40.2 mm (1.6 in) |
| 1972 | 76.0 mm (3.0 in) |
| 1973 | 32.8 mm (1.3 in) |
| 1974 | 44.5 mm (1.8 in) |
| 1975 | 27.1 mm (1.1 in) |
| 1976 | 61.0 mm (2.4 in) |
| 1977 | 39.6 mm (1.6 in) |
| 1978 | 85.0 mm (3.3 in) |
| 1979 | 84.8 mm (3.3 in) |
| 1980 | 53.2 mm (2.1 in) |
| 1981 | 76.2 mm (3.0 in) |
| 1982 | 44.4 mm (1.7 in) |
| 1983 | 70.3 mm (2.8 in) |
| 1984 | 42.2 mm (1.7 in) |
| 1985 | 59.2 mm (2.3 in) |
| 1986 | 52.5 mm (2.1 in) |
| 1987 | 86.9 mm (3.4 in) |
| 1988 | 61.9 mm (2.4 in) |
| 1989 | 45.3 mm (1.8 in) |
| 1990 | 53.1 mm (2.1 in) |
| 1991 | 85.9 mm (3.4 in) |
| 1992 | 93.8 mm (3.7 in) |
| 1993 | 87.3 mm (3.4 in) |
| 1994 | 21.8 mm (0.9 in) |
| 1995 | 51.6 mm (2.0 in) |
| 1996 | 34.6 mm (1.4 in) |
| 1997 | 47.5 mm (1.9 in) |
| 1998 | 43.9 mm (1.7 in) |
| 1999 | 65.5 mm (2.6 in) |
| 2000 | 89.2 mm (3.5 in) |
| 2001 | 35.0 mm (1.4 in) |
| 2002 | 120.2 mm (4.7 in) |
| 2003 | 40.4 mm (1.6 in) |
| 2004 | 101.1 mm (4.0 in) |
| 2005 | 101.9 mm (4.0 in) |
| 2006 | 45.2 mm (1.8 in) |
| 2007 | 50.1 mm (2.0 in) |
| 2008 | 35.7 mm (1.4 in) |
| 2009 | 46.0 mm (1.8 in) |
| 2010 | 108.4 mm (4.3 in) |
| 2011 | 47.3 mm (1.9 in) |
| 2012 | 41.7 mm (1.6 in) |
| 2013 | 70.5 mm (2.8 in) |
| 2014 | 55.8 mm (2.2 in) |
| 2015 | 44.5 mm (1.8 in) |
| 2016 | 49.3 mm (1.9 in) |
| 2017 | 73.7 mm (2.9 in) |
| 2018 | 62.8 mm (2.5 in) |
| 2019 | 42.7 mm (1.7 in) |
| 2020 | 62.7 mm (2.5 in) |
| 2021 | 57.4 mm (2.3 in) |
| 2022 | 38.8 mm (1.5 in) |
| 2023 | 28.7 mm (1.1 in) |
| 2024 | 31.7 mm (1.2 in) |
| 2025 | 70.2 mm (2.8 in) |
| 2026 | 33.0 mm (1.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1938 | 64 days |
| 1939 | 32 days |
| 1940 | 53 days |
| 1941 | 43 days |
| 1942 | 68 days |
| 1943 | 87 days |
| 1944 | 53 days |
| 1945 | 62 days |
| 1946 | 53 days |
| 1947 | 71 days |
| 1948 | 44 days |
| 1949 | 27 days |
| 1950 | 96 days |
| 1951 | 63 days |
| 1952 | 33 days |
| 1953 | 54 days |
| 1954 | 64 days |
| 1955 | 39 days |
| 1956 | 63 days |
| 1957 | 34 days |
| 1958 | 40 days |
| 1959 | 43 days |
| 1960 | 44 days |
| 1961 | 84 days |
| 1962 | 102 days |
| 1963 | 83 days |
| 1964 | 50 days |
| 1965 | 31 days |
| 1966 | 84 days |
| 1967 | 64 days |
| 1968 | 39 days |
| 1969 | 71 days |
| 1970 | 52 days |
| 1971 | 53 days |
| 1972 | 155 days |
| 1973 | 80 days |
| 1974 | 117 days |
| 1975 | 50 days |
| 1976 | 67 days |
| 1977 | 49 days |
| 1978 | 98 days |
| 1979 | 57 days |
| 1980 | 61 days |
| 1981 | 46 days |
| 1982 | 72 days |
| 1983 | 67 days |
| 1984 | 72 days |
| 1985 | 52 days |
| 1986 | 57 days |
| 1987 | 43 days |
| 1988 | 54 days |
| 1989 | 67 days |
| 1990 | 21 days |
| 1991 | 65 days |
| 1992 | 29 days |
| 1993 | 75 days |
| 1994 | 56 days |
| 1995 | 44 days |
| 1996 | 90 days |
| 1997 | 44 days |
| 1998 | 45 days |
| 1999 | 99 days |
| 2000 | 49 days |
| 2001 | 47 days |
| 2002 | 94 days |
| 2003 | 70 days |
| 2004 | 98 days |
| 2005 | 59 days |
| 2006 | 67 days |
| 2007 | 67 days |
| 2008 | 79 days |
| 2009 | 70 days |
| 2010 | 76 days |
| 2011 | 49 days |
| 2012 | 72 days |
| 2013 | 84 days |
| 2014 | 67 days |
| 2015 | 37 days |
| 2016 | 65 days |
| 2017 | 118 days |
| 2018 | 46 days |
| 2019 | 60 days |
| 2020 | 98 days |
| 2021 | 99 days |
| 2022 | 63 days |
| 2023 | 65 days |
| 2024 | 85 days |
| 2025 | 32 days |
| 2026 | 50 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
76 years with a frostAcross 76 years with a frost, the median last spring frost at Montezuma Castle Nm falls on 21 April and the median first autumn frost on 28 October, which leaves a median of 190 days between them.
In 1990 to 2025 the median growing season was 200 days. That is 18 days more than in 1939 to 1972.
Fitted over all years, the growing season changes by +2.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1939 to 1972) | Recent period (1990 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 21 April | 26 April | 15 April | 11 days earlier | -1.5 days per decade |
| First autumn frost | 28 October | 25 October | 31 October | 6 days later | +1.3 days per decade |
| Growing days | 190 days | 182 days | 200 days | 18 days more | +2.8 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
85 years, 1939 to 2025A day with at least 35.5 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 88.2 mm (3.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 35.5 mm (1.4 in) | |
| 5 years | 49.0 mm (1.9 in) | |
| 10 years | 58.2 mm (2.3 in) | |
| 25 years | 70.0 mm (2.8 in) | |
| 50 years | 79.1 mm (3.1 in) | |
| 100 years | 88.2 mm (3.5 in) | Longer than the 85 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, 85 years of values from 1939 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: 83.6 mm (3.3 in) in 1958; 75.2 mm (3.0 in) in 1943; 74.9 mm (2.9 in) in 1970.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Montezuma Castle Nm, at 1993 and 2012. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1993 ran 0.3 C (0.5 F) lower than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2012 ran 0.3 C (0.5 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1993 | -0.3 | -0.5 | likely | 5 |
| 2012 | -0.3 | -0.5 | possible | 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
2009 to 2025 against 1961 to 1990Over 2009 to 2025, Montezuma Castle Nm had a mean temperature of 16.9 C (62.5 F) and 304.4 mm (12.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Safford Ag Ctr (United States, 282 km away), Ft Thomas 2 SW (United States, 247 km away) and Searchlight (United States, 296 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Safford Ag Ctr | United States | 282 km (175 mi) | 17.1 C (62.8 F) | 246.7 mm (9.7 in) | 0.48 |
| Ft Thomas 2 SW | United States | 247 km (153 mi) | 17.5 C (63.5 F) | 252.1 mm (9.9 in) | 0.75 |
| Searchlight | United States | 296 km (184 mi) | 17.4 C (63.4 F) | 200.2 mm (7.9 in) | 0.80 |
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).