Apache Powder Company Weather Records (USC00020309)
Record envelope, standing records and threshold days for Apache Powder Company (USC00020309), Arizona, United States, with 68 years of record.
Key Facts for Apache Powder Company
- Apache Powder Company (USC00020309) is a weather station in Arizona, United States at 31.90 latitude and -110.25 longitude, 1,124 m (3,689 ft) above sea level.
- The station reports from 1923 to 1990, 68 years of record.
- 1,464 records set at Apache Powder Company still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Apache Powder Company set a daily record high minimum temperature of 14.4 C (57.9 F) on 30 April 1990.
About the Station
- Location: Arizona, United States, 31.90 latitude, -110.25 longitude.
- Elevation: 1,124 m (3,689 ft).
- Period of record: 1923 to 1990, 68 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 28.9 C (84.0 F) | -14.4 C (6.1 F) | n/a | n/a |
| Feb | 32.2 C (90.0 F) | -12.8 C (9.0 F) | n/a | n/a |
| Mar | 33.9 C (93.0 F) | -11.1 C (12.0 F) | n/a | n/a |
| Apr | 36.7 C (98.1 F) | -7.8 C (18.0 F) | n/a | n/a |
| May | 40.6 C (105.1 F) | -3.3 C (26.1 F) | n/a | n/a |
| Jun | 43.9 C (111.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Jul | 43.3 C (109.9 F) | 7.8 C (46.0 F) | n/a | n/a |
| Aug | 41.7 C (107.1 F) | 8.9 C (48.0 F) | n/a | n/a |
| Sep | 40.6 C (105.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Oct | 37.2 C (99.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Nov | 32.2 C (90.0 F) | -11.1 C (12.0 F) | n/a | n/a |
| Dec | 28.9 C (84.0 F) | -21.7 C (-7.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1944 | 39 |
| 1945 | 41 |
| 1946 | 47 |
| 1947 | 36 |
| 1948 | 46 |
| 1949 | 57 |
| 1950 | 66 |
| 1951 | 32 |
| 1952 | 33 |
| 1953 | 38 |
| 1954 | 26 |
| 1955 | 39 |
| 1956 | 51 |
| 1957 | 41 |
| 1958 | 34 |
| 1959 | 32 |
| 1960 | 23 |
| 1961 | 29 |
| 1962 | 44 |
| 1963 | 21 |
| 1964 | 39 |
| 1965 | 36 |
| 1966 | 27 |
| 1967 | 28 |
| 1968 | 24 |
| 1969 | 25 |
| 1970 | 16 |
| 1971 | 48 |
| 1972 | 25 |
| 1973 | 32 |
| 1974 | 25 |
| 1975 | 31 |
| 1976 | 27 |
| 1977 | 11 |
| 1978 | 25 |
| 1979 | 19 |
| 1980 | 37 |
| 1981 | 13 |
| 1982 | 22 |
| 1983 | 38 |
| 1984 | 18 |
| 1985 | 24 |
| 1986 | 27 |
| 1987 | 26 |
| 1988 | 16 |
| 1989 | 20 |
| 1990 | 10 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 1978-12-08 | Record low minimum temperature | Record low minimum temperature -21.7 C (-7.1 F) |
Wettest Day of Each Month
Aug: 57.2 mm (2.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 26.7 mm (1.1 in) | 6 January 1946 |
| Feb | 26.7 mm (1.1 in) | 2 February 1940 |
| Mar | 20.6 mm (0.8 in) | 2 March 1981 |
| Apr | 27.2 mm (1.1 in) | 27 April 1987 |
| May | 14.0 mm (0.6 in) | 19 May 1954 |
| Jun | 48.3 mm (1.9 in) | 29 June 1931 |
| Jul | 53.3 mm (2.1 in) | 1 July 1943 |
| Aug | 57.2 mm (2.3 in) | 26 August 1943 |
| Sep | 43.7 mm (1.7 in) | 6 September 1927 |
| Oct | 50.5 mm (2.0 in) | 4 October 1989 |
| Nov | 30.0 mm (1.2 in) | 24 November 1978 |
| Dec | 39.6 mm (1.6 in) | 15 December 1967 |
Period of Record Coverage
1944 to 1990| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1944 | 324 | 89% | No |
| 1945 | 329 | 90% | Yes |
| 1946 | 352 | 96% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 362 | 99% | Yes |
| 1949 | 318 | 87% | No |
| 1950 | 331 | 91% | Yes |
| 1951 | 335 | 92% | Yes |
| 1952 | 356 | 97% | Yes |
| 1953 | 358 | 98% | Yes |
| 1954 | 339 | 93% | Yes |
| 1955 | 335 | 92% | Yes |
| 1956 | 346 | 95% | Yes |
| 1957 | 338 | 93% | Yes |
| 1958 | 349 | 96% | Yes |
| 1959 | 343 | 94% | Yes |
| 1960 | 349 | 95% | Yes |
| 1961 | 351 | 96% | Yes |
| 1962 | 357 | 98% | Yes |
| 1963 | 358 | 98% | Yes |
| 1964 | 362 | 99% | Yes |
| 1965 | 360 | 99% | Yes |
| 1966 | 362 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 363 | 99% | Yes |
| 1969 | 349 | 96% | Yes |
| 1970 | 334 | 92% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 363 | 99% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 335 | 92% | Yes |
| 1978 | 310 | 85% | No |
| 1979 | 337 | 92% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 324 | 89% | No |
| 1983 | 333 | 91% | Yes |
| 1984 | 329 | 90% | No |
| 1985 | 329 | 90% | Yes |
| 1986 | 339 | 93% | Yes |
| 1987 | 361 | 99% | Yes |
| 1988 | 365 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 119 | 33% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 30 April 1990 | Apache Powder Company, US | daily high min | 14.4 C (57.9 F) | 1.1 C (2.0 F) | 3 years | 6 of 100 (Routine) |
| 25 April 1990 | Apache Powder Company, US | daily low max (Tie) | 20.0 C (68.0 F) | tie | 25 years | 2 of 100 (Routine) |
| 17 April 1990 | Apache Powder Company, US | daily high min | 15.0 C (59.0 F) | 2.2 C (4.0 F) | 36 years | 20 of 100 (Routine) |
| 31 March 1990 | Apache Powder Company, US | daily rain | 2.3 mm (0.09 in) | 2.3 mm (0.09 in) | 65 years | 20 of 100 (Routine) |
| 24 March 1990 | Apache Powder Company, US | daily high max (Tie) | 30.0 C (86.0 F) | tie | 33 years | 3 of 100 (Routine) |
| 15 March 1990 | Apache Powder Company, US | daily low min (Tie) | -7.2 C (19.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 14 March 1990 | Apache Powder Company, US | daily low min | -7.8 C (18.0 F) | 0.6 C (1.1 F) | 28 years | 13 of 100 (Routine) |
| 13 March 1990 | Apache Powder Company, US | daily low max | 11.1 C (52.0 F) | 0.6 C (1.1 F) | 16 years | 10 of 100 (Routine) |
| 5 March 1990 | Apache Powder Company, US | daily high min | 11.7 C (53.1 F) | 0.6 C (1.1 F) | 19 years | 10 of 100 (Routine) |
| 19 February 1990 | Apache Powder Company, US | daily low max | 5.6 C (42.1 F) | 3.8 C (6.8 F) | 35 years | 22 of 100 (Routine) |
| 16 February 1990 | Apache Powder Company, US | daily low min | -11.1 C (12.0 F) | 2.8 C (5.0 F) | 26 years | 17 of 100 (Routine) |
| 16 February 1990 | Apache Powder Company, US | daily low max | 7.8 C (46.0 F) | 3.3 C (5.9 F) | 12 years | 14 of 100 (Routine) |
| 14 February 1990 | Apache Powder Company, US | daily high min | 9.4 C (48.9 F) | 1.1 C (2.0 F) | 28 years | 14 of 100 (Routine) |
| 2 February 1990 | Apache Powder Company, US | daily snowfall | 2.5 cm (1.0 in) | 2.5 cm (1.0 in) | 66 years | 20 of 100 (Routine) |
| 2 February 1990 | Apache Powder Company, US | daily low max | 5.0 C (41.0 F) | 3.3 C (5.9 F) | 4 years | 12 of 100 (Routine) |
| 28 January 1990 | Apache Powder Company, US | daily low min (Tie) | -7.2 C (19.0 F) | tie | 42 years | 4 of 100 (Routine) |
| 18 January 1990 | Apache Powder Company, US | daily snow depth (Tie) | 2.5 cm (1.0 in) | tie | 40 years | 4 of 100 (Routine) |
| 13 December 1989 | Apache Powder Company, US | daily low min | -10.0 C (14.0 F) | 1.1 C (2.0 F) | 36 years | 16 of 100 (Routine) |
| 12 December 1989 | Apache Powder Company, US | daily low min (Tie) | -11.1 C (12.0 F) | tie | 42 years | 4 of 100 (Routine) |
| 30 November 1989 | Apache Powder Company, US | daily low max (Tie) | 12.8 C (55.0 F) | tie | 20 years | 2 of 100 (Routine) |
Climate Trend
41 complete years, 1944 to 1989| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1944 | 16.2 C | -0.60 C |
| 1945 | 16.8 C | +0.04 C |
| 1946 | 16.9 C | +0.07 C |
| 1947 | 16.7 C | -0.14 C |
| 1948 | 16.6 C | -0.16 C |
| 1949 | 16.1 C | -0.71 C |
| 1950 | 17.3 C | +0.45 C |
| 1951 | 17.0 C | +0.15 C |
| 1952 | 16.9 C | +0.08 C |
| 1953 | 16.6 C | -0.20 C |
| 1954 | 17.9 C | +1.13 C |
| 1955 | 16.5 C | -0.32 C |
| 1956 | 16.9 C | +0.09 C |
| 1957 | 17.3 C | +0.52 C |
| 1958 | 17.2 C | +0.42 C |
| 1959 | 17.3 C | +0.45 C |
| 1960 | 17.1 C | +0.26 C |
| 1961 | 17.1 C | +0.32 C |
| 1962 | 17.5 C | +0.66 C |
| 1963 | 17.1 C | +0.30 C |
| 1964 | 16.1 C | -0.73 C |
| 1965 | 16.8 C | +0.02 C |
| 1966 | 16.9 C | +0.12 C |
| 1967 | 16.8 C | -0.01 C |
| 1968 | 16.6 C | -0.25 C |
| 1971 | 16.3 C | -0.46 C |
| 1972 | 17.0 C | +0.17 C |
| 1973 | 16.4 C | -0.39 C |
| 1974 | 16.9 C | +0.08 C |
| 1975 | 16.6 C | -0.24 C |
| 1976 | 16.4 C | -0.37 C |
| 1980 | 17.4 C | +0.58 C |
| 1981 | 17.3 C | +0.47 C |
| 1982 | 16.6 C | -0.19 C |
| 1983 | 15.7 C | -1.10 C |
| 1984 | 16.5 C | -0.30 C |
| 1985 | 16.8 C | +0.04 C |
| 1986 | 17.3 C | +0.50 C |
| 1987 | 16.1 C | -0.75 C |
| 1988 | 16.6 C | -0.21 C |
| 1989 | 17.1 C | +0.33 C |
The fitted trend in annual mean temperature here over 1944 to 1989 is -0.04 C (-0.14 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.1) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.04 C (-0.14 to 0.06) per decade | -0.1 F (-0.3 to 0.1) per decade | 1944 to 1989 | 41 | Not clearly different from zero |
| Mean daily maximum | 0.02 C (-0.11 to 0.14) per decade | 0.03 F (-0.20 to 0.26) per decade | 1944 to 1989 | 41 | Not clearly different from zero |
| Mean daily minimum | -0.10 C (-0.22 to 0.03) per decade | -0.2 F (-0.4 to 0.1) per decade | 1944 to 1989 | 41 | Not clearly different from zero |
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
1923 to 1990| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.9 C (111.0 F) | 1973 | 41.1 C (106.0 F) | 47 |
| Coldest night (TNn) | -21.7 C (-7.1 F) | 1978 | -11.1 C (12.0 F) | 47 |
| Wettest day (Rx1day) | 57.2 mm (2.3 in) | 1943 | 34.2 mm (1.3 in) | 68 |
| Wettest five days (Rx5day) | 104.1 mm (4.1 in) | 1983 | 55.0 mm (2.2 in) | 68 |
| Longest dry spell (CDD) | 148 days | 1972 | 66 days | 68 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1923 | n/a |
| 1924 | n/a |
| 1925 | n/a |
| 1926 | n/a |
| 1927 | n/a |
| 1928 | n/a |
| 1929 | n/a |
| 1930 | n/a |
| 1931 | n/a |
| 1932 | n/a |
| 1933 | n/a |
| 1934 | n/a |
| 1935 | n/a |
| 1936 | n/a |
| 1937 | n/a |
| 1938 | n/a |
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | 41.7 C (107.1 F) |
| 1945 | 42.2 C (108.0 F) |
| 1946 | 40.0 C (104.0 F) |
| 1947 | 41.7 C (107.1 F) |
| 1948 | 41.7 C (107.1 F) |
| 1949 | 40.6 C (105.1 F) |
| 1950 | 41.1 C (106.0 F) |
| 1951 | 41.1 C (106.0 F) |
| 1952 | 40.6 C (105.1 F) |
| 1953 | 42.2 C (108.0 F) |
| 1954 | 41.7 C (107.1 F) |
| 1955 | 41.1 C (106.0 F) |
| 1956 | 41.1 C (106.0 F) |
| 1957 | 41.7 C (107.1 F) |
| 1958 | 43.3 C (109.9 F) |
| 1959 | 40.6 C (105.1 F) |
| 1960 | 42.8 C (109.0 F) |
| 1961 | 41.7 C (107.1 F) |
| 1962 | 41.7 C (107.1 F) |
| 1963 | 40.6 C (105.1 F) |
| 1964 | 41.1 C (106.0 F) |
| 1965 | 40.6 C (105.1 F) |
| 1966 | 40.0 C (104.0 F) |
| 1967 | 40.6 C (105.1 F) |
| 1968 | 42.2 C (108.0 F) |
| 1969 | 42.2 C (108.0 F) |
| 1970 | 41.7 C (107.1 F) |
| 1971 | 41.1 C (106.0 F) |
| 1972 | 41.1 C (106.0 F) |
| 1973 | 43.9 C (111.0 F) |
| 1974 | 42.2 C (108.0 F) |
| 1975 | 40.0 C (104.0 F) |
| 1976 | 40.6 C (105.1 F) |
| 1977 | 40.6 C (105.1 F) |
| 1978 | 41.7 C (107.1 F) |
| 1979 | 42.8 C (109.0 F) |
| 1980 | 41.7 C (107.1 F) |
| 1981 | 41.1 C (106.0 F) |
| 1982 | 40.0 C (104.0 F) |
| 1983 | 39.4 C (102.9 F) |
| 1984 | 39.4 C (102.9 F) |
| 1985 | 41.7 C (107.1 F) |
| 1986 | 41.7 C (107.1 F) |
| 1987 | 40.0 C (104.0 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 42.2 C (108.0 F) |
| 1990 | 32.8 C (91.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1923 | n/a |
| 1924 | n/a |
| 1925 | n/a |
| 1926 | n/a |
| 1927 | n/a |
| 1928 | n/a |
| 1929 | n/a |
| 1930 | n/a |
| 1931 | n/a |
| 1932 | n/a |
| 1933 | n/a |
| 1934 | n/a |
| 1935 | n/a |
| 1936 | n/a |
| 1937 | n/a |
| 1938 | n/a |
| 1939 | n/a |
| 1940 | n/a |
| 1941 | n/a |
| 1942 | n/a |
| 1943 | n/a |
| 1944 | -10.0 C (14.0 F) |
| 1945 | -8.3 C (17.1 F) |
| 1946 | -11.7 C (10.9 F) |
| 1947 | -11.1 C (12.0 F) |
| 1948 | -13.9 C (7.0 F) |
| 1949 | -12.8 C (9.0 F) |
| 1950 | -12.8 C (9.0 F) |
| 1951 | -10.0 C (14.0 F) |
| 1952 | -8.9 C (16.0 F) |
| 1953 | -15.6 C (3.9 F) |
| 1954 | -11.1 C (12.0 F) |
| 1955 | -11.7 C (10.9 F) |
| 1956 | -11.1 C (12.0 F) |
| 1957 | -11.1 C (12.0 F) |
| 1958 | -11.7 C (10.9 F) |
| 1959 | -10.6 C (12.9 F) |
| 1960 | -11.1 C (12.0 F) |
| 1961 | -7.8 C (18.0 F) |
| 1962 | -13.3 C (8.1 F) |
| 1963 | -11.1 C (12.0 F) |
| 1964 | -14.4 C (6.1 F) |
| 1965 | -11.1 C (12.0 F) |
| 1966 | -10.0 C (14.0 F) |
| 1967 | -12.8 C (9.0 F) |
| 1968 | -12.8 C (9.0 F) |
| 1969 | -9.4 C (15.1 F) |
| 1970 | -12.2 C (10.0 F) |
| 1971 | -12.2 C (10.0 F) |
| 1972 | -12.2 C (10.0 F) |
| 1973 | -11.1 C (12.0 F) |
| 1974 | -12.2 C (10.0 F) |
| 1975 | -9.4 C (15.1 F) |
| 1976 | -11.7 C (10.9 F) |
| 1977 | -8.3 C (17.1 F) |
| 1978 | -21.7 C (-7.1 F) |
| 1979 | -10.0 C (14.0 F) |
| 1980 | -8.9 C (16.0 F) |
| 1981 | -11.7 C (10.9 F) |
| 1982 | -11.7 C (10.9 F) |
| 1983 | -9.4 C (15.1 F) |
| 1984 | -8.9 C (16.0 F) |
| 1985 | -12.8 C (9.0 F) |
| 1986 | -6.7 C (19.9 F) |
| 1987 | -10.6 C (12.9 F) |
| 1988 | -12.2 C (10.0 F) |
| 1989 | -11.1 C (12.0 F) |
| 1990 | -11.1 C (12.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1923 | 33.5 mm (1.3 in) |
| 1924 | 15.7 mm (0.6 in) |
| 1925 | 21.3 mm (0.8 in) |
| 1926 | 18.8 mm (0.7 in) |
| 1927 | 43.7 mm (1.7 in) |
| 1928 | 32.0 mm (1.3 in) |
| 1929 | 38.9 mm (1.5 in) |
| 1930 | 42.4 mm (1.7 in) |
| 1931 | 48.3 mm (1.9 in) |
| 1932 | 50.8 mm (2.0 in) |
| 1933 | 22.1 mm (0.9 in) |
| 1934 | 31.0 mm (1.2 in) |
| 1935 | 35.6 mm (1.4 in) |
| 1936 | 17.8 mm (0.7 in) |
| 1937 | 28.4 mm (1.1 in) |
| 1938 | 42.2 mm (1.7 in) |
| 1939 | 26.7 mm (1.1 in) |
| 1940 | 44.5 mm (1.8 in) |
| 1941 | 34.3 mm (1.4 in) |
| 1942 | 31.8 mm (1.3 in) |
| 1943 | 57.2 mm (2.3 in) |
| 1944 | 38.1 mm (1.5 in) |
| 1945 | 22.1 mm (0.9 in) |
| 1946 | 26.7 mm (1.1 in) |
| 1947 | 11.7 mm (0.5 in) |
| 1948 | 46.2 mm (1.8 in) |
| 1949 | 23.4 mm (0.9 in) |
| 1950 | 38.9 mm (1.5 in) |
| 1951 | 32.0 mm (1.3 in) |
| 1952 | 46.7 mm (1.8 in) |
| 1953 | 20.3 mm (0.8 in) |
| 1954 | 43.4 mm (1.7 in) |
| 1955 | 52.1 mm (2.1 in) |
| 1956 | 21.3 mm (0.8 in) |
| 1957 | 47.5 mm (1.9 in) |
| 1958 | 53.3 mm (2.1 in) |
| 1959 | 47.0 mm (1.9 in) |
| 1960 | 32.5 mm (1.3 in) |
| 1961 | 43.9 mm (1.7 in) |
| 1962 | 18.0 mm (0.7 in) |
| 1963 | 31.0 mm (1.2 in) |
| 1964 | 40.1 mm (1.6 in) |
| 1965 | 31.8 mm (1.3 in) |
| 1966 | 22.9 mm (0.9 in) |
| 1967 | 39.6 mm (1.6 in) |
| 1968 | 36.8 mm (1.4 in) |
| 1969 | 31.2 mm (1.2 in) |
| 1970 | 45.0 mm (1.8 in) |
| 1971 | 48.8 mm (1.9 in) |
| 1972 | 52.3 mm (2.1 in) |
| 1973 | 34.0 mm (1.3 in) |
| 1974 | 43.7 mm (1.7 in) |
| 1975 | 29.2 mm (1.1 in) |
| 1976 | 35.3 mm (1.4 in) |
| 1977 | 37.8 mm (1.5 in) |
| 1978 | 30.0 mm (1.2 in) |
| 1979 | 37.6 mm (1.5 in) |
| 1980 | 23.1 mm (0.9 in) |
| 1981 | 20.6 mm (0.8 in) |
| 1982 | 30.5 mm (1.2 in) |
| 1983 | 35.8 mm (1.4 in) |
| 1984 | 22.9 mm (0.9 in) |
| 1985 | 33.0 mm (1.3 in) |
| 1986 | 45.7 mm (1.8 in) |
| 1987 | 27.2 mm (1.1 in) |
| 1988 | 40.1 mm (1.6 in) |
| 1989 | 50.5 mm (2.0 in) |
| 1990 | 8.4 mm (0.33 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1923 | 72.3 mm (2.8 in) |
| 1924 | 19.4 mm (0.8 in) |
| 1925 | 46.4 mm (1.8 in) |
| 1926 | 33.3 mm (1.3 in) |
| 1927 | 73.9 mm (2.9 in) |
| 1928 | 54.4 mm (2.1 in) |
| 1929 | 64.3 mm (2.5 in) |
| 1930 | 42.4 mm (1.7 in) |
| 1931 | 69.1 mm (2.7 in) |
| 1932 | 88.7 mm (3.5 in) |
| 1933 | 44.1 mm (1.7 in) |
| 1934 | 32.3 mm (1.3 in) |
| 1935 | 53.6 mm (2.1 in) |
| 1936 | 43.7 mm (1.7 in) |
| 1937 | 37.9 mm (1.5 in) |
| 1938 | 63.0 mm (2.5 in) |
| 1939 | 65.9 mm (2.6 in) |
| 1940 | 58.2 mm (2.3 in) |
| 1941 | 46.4 mm (1.8 in) |
| 1942 | 34.6 mm (1.4 in) |
| 1943 | 92.4 mm (3.6 in) |
| 1944 | 87.6 mm (3.4 in) |
| 1945 | 36.1 mm (1.4 in) |
| 1946 | 61.5 mm (2.4 in) |
| 1947 | 14.0 mm (0.6 in) |
| 1948 | 78.1 mm (3.1 in) |
| 1949 | 54.0 mm (2.1 in) |
| 1950 | 39.4 mm (1.6 in) |
| 1951 | 38.1 mm (1.5 in) |
| 1952 | 52.4 mm (2.1 in) |
| 1953 | 35.8 mm (1.4 in) |
| 1954 | 100.8 mm (4.0 in) |
| 1955 | 61.0 mm (2.4 in) |
| 1956 | 44.7 mm (1.8 in) |
| 1957 | 65.8 mm (2.6 in) |
| 1958 | 72.4 mm (2.9 in) |
| 1959 | 56.1 mm (2.2 in) |
| 1960 | 32.5 mm (1.3 in) |
| 1961 | 44.9 mm (1.8 in) |
| 1962 | 34.1 mm (1.3 in) |
| 1963 | 61.2 mm (2.4 in) |
| 1964 | 63.0 mm (2.5 in) |
| 1965 | 55.2 mm (2.2 in) |
| 1966 | 51.2 mm (2.0 in) |
| 1967 | 53.4 mm (2.1 in) |
| 1968 | 48.5 mm (1.9 in) |
| 1969 | 47.7 mm (1.9 in) |
| 1970 | 64.8 mm (2.6 in) |
| 1971 | 82.9 mm (3.3 in) |
| 1972 | 77.0 mm (3.0 in) |
| 1973 | 65.4 mm (2.6 in) |
| 1974 | 99.1 mm (3.9 in) |
| 1975 | 39.6 mm (1.6 in) |
| 1976 | 87.9 mm (3.5 in) |
| 1977 | 79.8 mm (3.1 in) |
| 1978 | 64.8 mm (2.6 in) |
| 1979 | 40.6 mm (1.6 in) |
| 1980 | 29.0 mm (1.1 in) |
| 1981 | 34.1 mm (1.3 in) |
| 1982 | 80.4 mm (3.2 in) |
| 1983 | 104.1 mm (4.1 in) |
| 1984 | 54.7 mm (2.2 in) |
| 1985 | 45.0 mm (1.8 in) |
| 1986 | 81.2 mm (3.2 in) |
| 1987 | 59.5 mm (2.3 in) |
| 1988 | 64.2 mm (2.5 in) |
| 1989 | 88.3 mm (3.5 in) |
| 1990 | 10.7 mm (0.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1923 | 52 days |
| 1924 | 95 days |
| 1925 | 71 days |
| 1926 | 33 days |
| 1927 | 49 days |
| 1928 | 76 days |
| 1929 | 84 days |
| 1930 | 56 days |
| 1931 | 47 days |
| 1932 | 108 days |
| 1933 | 60 days |
| 1934 | 45 days |
| 1935 | 119 days |
| 1936 | 97 days |
| 1937 | 62 days |
| 1938 | 91 days |
| 1939 | 65 days |
| 1940 | 60 days |
| 1941 | 66 days |
| 1942 | 70 days |
| 1943 | 114 days |
| 1944 | 80 days |
| 1945 | 87 days |
| 1946 | 52 days |
| 1947 | 37 days |
| 1948 | 119 days |
| 1949 | 69 days |
| 1950 | 129 days |
| 1951 | 42 days |
| 1952 | 41 days |
| 1953 | 66 days |
| 1954 | 82 days |
| 1955 | 84 days |
| 1956 | 88 days |
| 1957 | 37 days |
| 1958 | 50 days |
| 1959 | 64 days |
| 1960 | 100 days |
| 1961 | 111 days |
| 1962 | 128 days |
| 1963 | 67 days |
| 1964 | 95 days |
| 1965 | 70 days |
| 1966 | 60 days |
| 1967 | 55 days |
| 1968 | 65 days |
| 1969 | 65 days |
| 1970 | 81 days |
| 1971 | 93 days |
| 1972 | 148 days |
| 1973 | 58 days |
| 1974 | 53 days |
| 1975 | 78 days |
| 1976 | 41 days |
| 1977 | 54 days |
| 1978 | 50 days |
| 1979 | 63 days |
| 1980 | 50 days |
| 1981 | 59 days |
| 1982 | 56 days |
| 1983 | 90 days |
| 1984 | 66 days |
| 1985 | 48 days |
| 1986 | 72 days |
| 1987 | 50 days |
| 1988 | 51 days |
| 1989 | 87 days |
| 1990 | 42 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
41 years with a frostAcross 41 years with a frost, the median last spring frost at Apache Powder Company falls on 20 April and the median first autumn frost on 31 October, which leaves a median of 193 days between them.
Fitted over all years, the growing season changes by -2.8 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1955 to 1989) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 20 April | n/a | 25 April | n/a | +2.9 days per decade |
| First autumn frost | 31 October | n/a | 31 October | n/a | +0.1 days per decade |
| Growing days | 193 days | n/a | 189 days | n/a | -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
65 years, 1924 to 1989A day with at least 35.2 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 58.5 mm (2.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 35.2 mm (1.4 in) | |
| 5 years | 44.7 mm (1.8 in) | |
| 10 years | 49.4 mm (1.9 in) | |
| 25 years | 53.9 mm (2.1 in) | |
| 50 years | 56.5 mm (2.2 in) | |
| 100 years | 58.5 mm (2.3 in) | Longer than the 65 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, 65 years of values from 1924 to 1989.
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: 57.2 mm (2.3 in) in 1943; 53.3 mm (2.1 in) in 1958; 52.3 mm (2.1 in) in 1972.
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).