Pocatello Rgnl AP Weather Records (USW00024156)
Record envelope, standing records and threshold days for Pocatello Rgnl AP (USW00024156), Idaho, United States, with 88 years of record.
Key Facts for Pocatello Rgnl AP
- Pocatello Rgnl AP (USW00024156) is a weather station in Idaho, United States at 42.92 latitude and -112.57 longitude, 1,357 m (4,451 ft) above sea level.
- The station reports from 1939 to 2026, 88 years of record.
- 1,464 records set at Pocatello Rgnl AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Pocatello Rgnl AP set a daily record precipitation of 30.5 mm (1.2 in) 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: Idaho, United States, 42.92 latitude, -112.57 longitude.
- Elevation: 1,357 m (4,451 ft).
- Period of record: 1939 to 2026, 88 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
22 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 16.1 C (61.0 F) | -35.0 C (-31.0 F) | 10.6 C (51.1 F) | -13.3 C (8.1 F) |
| Feb | 18.3 C (64.9 F) | -36.1 C (-33.0 F) | 16.1 C (61.0 F) | -12.2 C (10.0 F) |
| Mar | 25.0 C (77.0 F) | -24.4 C (-11.9 F) | 25.0 C (77.0 F) | -8.3 C (17.1 F) |
| Apr | 30.0 C (86.0 F) | -11.1 C (12.0 F) | 26.1 C (79.0 F) | -9.4 C (15.1 F) |
| May | 36.1 C (97.0 F) | -6.7 C (19.9 F) | 31.7 C (89.1 F) | -5.0 C (23.0 F) |
| Jun | 39.4 C (102.9 F) | -2.2 C (28.0 F) | 33.3 C (91.9 F) | 0.0 C (32.0 F) |
| Jul | 40.0 C (104.0 F) | 1.1 C (34.0 F) | 38.9 C (102.0 F) | 5.0 C (41.0 F) |
| Aug | 40.0 C (104.0 F) | -1.1 C (30.0 F) | 39.4 C (102.9 F) | 2.8 C (37.0 F) |
| Sep | 38.9 C (102.0 F) | -7.2 C (19.0 F) | 31.1 C (88.0 F) | -1.1 C (30.0 F) |
| Oct | 32.8 C (91.0 F) | -21.0 C (-5.8 F) | 31.1 C (88.0 F) | 0.0 C (32.0 F) |
| Nov | 23.9 C (75.0 F) | -25.6 C (-14.1 F) | n/a | n/a |
| Dec | 17.8 C (64.0 F) | -33.9 C (-29.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1939 | 22 |
| 1940 | 23 |
| 1941 | 21 |
| 1942 | 14 |
| 1943 | 15 |
| 1944 | 6 |
| 1945 | 16 |
| 1946 | 13 |
| 1947 | 19 |
| 1948 | 18 |
| 1949 | 25 |
| 1950 | 18 |
| 1951 | 9 |
| 1952 | 9 |
| 1953 | 16 |
| 1954 | 16 |
| 1955 | 27 |
| 1956 | 13 |
| 1957 | 7 |
| 1958 | 27 |
| 1959 | 17 |
| 1960 | 19 |
| 1961 | 13 |
| 1962 | 19 |
| 1963 | 13 |
| 1964 | 28 |
| 1965 | 24 |
| 1966 | 19 |
| 1967 | 12 |
| 1968 | 18 |
| 1969 | 17 |
| 1970 | 18 |
| 1971 | 11 |
| 1972 | 24 |
| 1973 | 9 |
| 1974 | 20 |
| 1975 | 21 |
| 1976 | 9 |
| 1977 | 16 |
| 1978 | 17 |
| 1979 | 22 |
| 1980 | 14 |
| 1981 | 15 |
| 1982 | 19 |
| 1983 | 15 |
| 1984 | 16 |
| 1985 | 32 |
| 1986 | 11 |
| 1987 | 16 |
| 1988 | 16 |
| 1989 | 20 |
| 1990 | 24 |
| 1991 | 15 |
| 1992 | 26 |
| 1993 | 23 |
| 1994 | 19 |
| 1995 | 20 |
| 1996 | 19 |
| 1997 | 12 |
| 1998 | 7 |
| 1999 | 16 |
| 2000 | 18 |
| 2001 | 24 |
| 2002 | 18 |
| 2003 | 35 |
| 2004 | 9 |
| 2005 | 4 |
| 2006 | 12 |
| 2007 | 9 |
| 2008 | 12 |
| 2009 | 11 |
| 2010 | 14 |
| 2011 | 8 |
| 2012 | 20 |
| 2013 | 15 |
| 2014 | 14 |
| 2015 | 32 |
| 2016 | 11 |
| 2017 | 15 |
| 2018 | 10 |
| 2019 | 17 |
| 2020 | 22 |
| 2021 | 14 |
| 2022 | 20 |
| 2023 | 7 |
| 2024 | 12 |
| 2025 | 13 |
| 2026 | 13 |
All-Time Record Progression
9 new records| Date | Kind | Detail |
|---|---|---|
| 1969-08-02 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 1972-12-10 | Record low maximum temperature | Record low maximum temperature -20.0 C (-4.0 F) |
| 1976-10-02 | Record daily precipitation | Record daily precipitation 42.7 mm (1.7 in) |
| 1982-12-01 | Record daily snowfall | Record daily snowfall 24.1 cm (9.5 in) |
| 1983-12-23 | Record low maximum temperature | Record low maximum temperature -22.2 C (-8.0 F) |
| 1985-02-01 | Record low minimum temperature | Record low minimum temperature -36.1 C (-33.0 F) |
| 1988-12-25 | Record daily snowfall | Record daily snowfall 27.4 cm (10.8 in) |
| 1990-12-21 | Record low maximum temperature | Record low maximum temperature -22.8 C (-9.0 F) |
| 2003-12-26 | Record daily snowfall | Record daily snowfall 33.0 cm (13.0 in) |
Wettest Day of Each Month
Oct: 42.7 mm (1.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 23.6 mm (0.9 in) | 27 January 1970 |
| Feb | 18.5 mm (0.7 in) | 7 February 2017 |
| Mar | 29.5 mm (1.2 in) | 1 March 2024 |
| Apr | 22.1 mm (0.9 in) | 27 April 1963 |
| May | 32.8 mm (1.3 in) | 21 May 1970 |
| Jun | 36.8 mm (1.4 in) | 6 June 2007 |
| Jul | 33.8 mm (1.3 in) | 4 July 2009 |
| Aug | 25.9 mm (1.0 in) | 19 August 2021 |
| Sep | 37.1 mm (1.5 in) | 12 September 1942 |
| Oct | 42.7 mm (1.7 in) | 2 October 1976 |
| Nov | 21.8 mm (0.9 in) | 2 November 2008 |
| Dec | 28.2 mm (1.1 in) | 16 December 2016 |
Period of Record Coverage
1939 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1939 | 363 | 99% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 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 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 285 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2026 | Pocatello Rgnl AP, US | daily rain (Provisional) | 30.5 mm (1.2 in) | 17.3 mm (0.7 in) | 4 years | 44 of 100 (Notable) |
| 9 October 2026 | Pocatello Rgnl AP, US | daily high max (Provisional) | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 84 years | 33 of 100 (Routine) |
| 5 October 2026 | Pocatello Rgnl AP, US | daily high max (Provisional) | 31.1 C (88.0 F) | 2.2 C (4.0 F) | 32 years | 20 of 100 (Routine) |
| 4 October 2026 | Pocatello Rgnl AP, US | daily high max (Tie, Provisional) | 30.0 C (86.0 F) | tie | 1 year | 2 of 100 (Routine) |
| 21 August 2026 | Pocatello Rgnl AP, US | daily high max (Provisional) | 38.3 C (100.9 F) | 1.6 C (2.9 F) | 16 years | 16 of 100 (Routine) |
| 20 August 2026 | Pocatello Rgnl AP, US | daily high max (Provisional) | 37.8 C (100.0 F) | 2.2 C (4.0 F) | 28 years | 21 of 100 (Routine) |
| 12 August 2026 | Pocatello Rgnl AP, US | daily high min (Tie) | 19.4 C (66.9 F) | tie | 1 year | 2 of 100 (Routine) |
| 1 August 2026 | Pocatello Rgnl AP, US | daily high max | 39.4 C (102.9 F) | 1.1 C (2.0 F) | 5 years | 11 of 100 (Routine) |
| 25 July 2026 | Pocatello Rgnl AP, US | daily high max | 38.3 C (100.9 F) | 1.1 C (2.0 F) | 32 years | 19 of 100 (Routine) |
| 25 July 2026 | Pocatello Rgnl AP, US | daily high min | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 1 year | 9 of 100 (Routine) |
| 24 July 2026 | Pocatello Rgnl AP, US | daily high max (Tie) | 38.3 C (100.9 F) | tie | 1 year | 2 of 100 (Routine) |
| 22 July 2026 | Pocatello Rgnl AP, US | daily high min (Tie) | 20.6 C (69.1 F) | tie | 9 years | 2 of 100 (Routine) |
| 21 July 2026 | Pocatello Rgnl AP, US | daily high max (Tie) | 37.8 C (100.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 12 July 2026 | Pocatello Rgnl AP, US | daily high max (Tie) | 38.9 C (102.0 F) | tie | 24 years | 3 of 100 (Routine) |
| 16 June 2026 | Pocatello Rgnl AP, US | daily high min | 16.7 C (62.1 F) | 1.1 C (2.0 F) | 75 years | 33 of 100 (Routine) |
| 11 June 2026 | Pocatello Rgnl AP, US | daily low min | 0.0 C (32.0 F) | 0.6 C (1.1 F) | 13 years | 13 of 100 (Routine) |
| 19 May 2026 | Pocatello Rgnl AP, US | daily low min (Tie) | -5.0 C (23.0 F) | tie | 23 years | 3 of 100 (Routine) |
| 25 April 2026 | Pocatello Rgnl AP, US | daily low min | -9.4 C (15.1 F) | 5.0 C (9.0 F) | 16 years | 26 of 100 (Routine) |
| 25 March 2026 | Pocatello Rgnl AP, US | daily high max | 23.9 C (75.0 F) | 1.7 C (3.1 F) | 27 years | 19 of 100 (Routine) |
| 24 March 2026 | Pocatello Rgnl AP, US | daily high max | 21.7 C (71.1 F) | 0.6 C (1.1 F) | 69 years | 29 of 100 (Routine) |
Climate Trend
87 complete years, 1939 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1939 | 9.1 C | +0.86 C |
| 1940 | 9.9 C | +1.62 C |
| 1941 | 8.4 C | +0.15 C |
| 1942 | 7.5 C | -0.73 C |
| 1943 | 9.0 C | +0.74 C |
| 1944 | 7.2 C | -1.07 C |
| 1945 | 8.2 C | 0.00 C |
| 1946 | 8.7 C | +0.41 C |
| 1947 | 8.7 C | +0.47 C |
| 1948 | 8.0 C | -0.22 C |
| 1949 | 8.1 C | -0.17 C |
| 1950 | 8.4 C | +0.14 C |
| 1951 | 7.9 C | -0.32 C |
| 1952 | 7.6 C | -0.63 C |
| 1953 | 9.4 C | +1.17 C |
| 1954 | 8.8 C | +0.51 C |
| 1955 | 7.1 C | -1.16 C |
| 1956 | 8.0 C | -0.26 C |
| 1957 | 8.1 C | -0.13 C |
| 1958 | 9.5 C | +1.28 C |
| 1959 | 8.6 C | +0.36 C |
| 1960 | 8.1 C | -0.10 C |
| 1961 | 8.8 C | +0.60 C |
| 1962 | 8.1 C | -0.13 C |
| 1963 | 8.7 C | +0.45 C |
| 1964 | 6.8 C | -1.45 C |
| 1965 | 7.9 C | -0.38 C |
| 1966 | 8.2 C | -0.09 C |
| 1967 | 8.1 C | -0.11 C |
| 1968 | 7.4 C | -0.88 C |
| 1969 | 7.9 C | -0.30 C |
| 1970 | 8.2 C | -0.04 C |
| 1971 | 6.9 C | -1.31 C |
| 1972 | 7.6 C | -0.67 C |
| 1973 | 8.0 C | -0.20 C |
| 1974 | 8.3 C | +0.07 C |
| 1975 | 7.8 C | -0.44 C |
| 1976 | 8.3 C | +0.09 C |
| 1977 | 8.6 C | +0.34 C |
| 1978 | 8.3 C | +0.02 C |
| 1979 | 7.6 C | -0.62 C |
| 1980 | 8.1 C | -0.14 C |
| 1981 | 8.8 C | +0.60 C |
| 1982 | 7.0 C | -1.24 C |
| 1983 | 8.3 C | +0.08 C |
| 1984 | 6.5 C | -1.71 C |
| 1985 | 5.6 C | -2.60 C |
| 1986 | 8.5 C | +0.28 C |
| 1987 | 8.8 C | +0.57 C |
| 1988 | 8.9 C | +0.65 C |
| 1989 | 7.7 C | -0.50 C |
| 1990 | 8.5 C | +0.29 C |
| 1991 | 8.2 C | -0.04 C |
| 1992 | 9.2 C | +0.92 C |
| 1993 | 6.2 C | -2.03 C |
| 1994 | 9.1 C | +0.84 C |
| 1995 | 9.0 C | +0.71 C |
| 1996 | 8.4 C | +0.19 C |
| 1997 | 8.1 C | -0.12 C |
| 1998 | 8.7 C | +0.46 C |
| 1999 | 8.4 C | +0.11 C |
| 2000 | 8.7 C | +0.45 C |
| 2001 | 7.9 C | -0.31 C |
| 2002 | 7.3 C | -0.91 C |
| 2003 | 9.3 C | +1.02 C |
| 2004 | 8.1 C | -0.19 C |
| 2005 | 7.8 C | -0.43 C |
| 2006 | 8.3 C | +0.10 C |
| 2007 | 8.7 C | +0.49 C |
| 2008 | 7.4 C | -0.81 C |
| 2009 | 7.2 C | -1.07 C |
| 2010 | 8.0 C | -0.28 C |
| 2011 | 7.2 C | -1.05 C |
| 2012 | 9.5 C | +1.25 C |
| 2013 | 8.0 C | -0.24 C |
| 2014 | 9.4 C | +1.15 C |
| 2015 | 9.8 C | +1.58 C |
| 2016 | 8.9 C | +0.65 C |
| 2017 | 8.5 C | +0.22 C |
| 2018 | 9.1 C | +0.81 C |
| 2019 | 7.7 C | -0.54 C |
| 2020 | 8.7 C | +0.49 C |
| 2021 | 9.5 C | +1.28 C |
| 2022 | 7.7 C | -0.58 C |
| 2023 | 7.8 C | -0.40 C |
| 2024 | 9.2 C | +0.96 C |
| 2025 | 9.7 C | +1.44 C |
The fitted trend in annual mean temperature here over 1939 to 2025 is 0.03 C (-0.04 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 87 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.03 C (-0.04 to 0.10) per decade | 0.1 F (-0.1 to 0.2) per decade | 1939 to 2025 | 87 | Not clearly different from zero |
| Mean daily maximum | 0.11 C (0.03 to 0.18) per decade | 0.19 F (0.05 to 0.33) per decade | 1939 to 2025 | 87 | Rise |
| Mean daily minimum | -0.04 C (-0.11 to 0.02) per decade | -0.08 F (-0.20 to 0.04) per decade | 1939 to 2025 | 87 | 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
1939 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.0 C (104.0 F) | 1969 | 37.8 C (100.0 F) | 88 |
| Coldest night (TNn) | -36.1 C (-33.0 F) | 1985 | -24.6 C (-12.4 F) | 88 |
| Wettest day (Rx1day) | 42.7 mm (1.7 in) | 1976 | 21.0 mm (0.8 in) | 88 |
| Wettest five days (Rx5day) | 58.0 mm (2.3 in) | 2009 | 34.5 mm (1.4 in) | 88 |
| Longest dry spell (CDD) | 88 days | 1988 | 40 days | 88 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1939 | 38.9 C (102.0 F) |
| 1940 | 39.4 C (102.9 F) |
| 1941 | 36.7 C (98.1 F) |
| 1942 | 38.3 C (100.9 F) |
| 1943 | 37.8 C (100.0 F) |
| 1944 | 35.6 C (96.1 F) |
| 1945 | 36.7 C (98.1 F) |
| 1946 | 37.8 C (100.0 F) |
| 1947 | 36.1 C (97.0 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 37.2 C (99.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 38.3 C (100.9 F) |
| 1952 | 35.0 C (95.0 F) |
| 1953 | 36.1 C (97.0 F) |
| 1954 | 37.8 C (100.0 F) |
| 1955 | 37.8 C (100.0 F) |
| 1956 | 36.7 C (98.1 F) |
| 1957 | 35.6 C (96.1 F) |
| 1958 | 37.2 C (99.0 F) |
| 1959 | 37.8 C (100.0 F) |
| 1960 | 38.3 C (100.9 F) |
| 1961 | 38.3 C (100.9 F) |
| 1962 | 36.1 C (97.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 37.8 C (100.0 F) |
| 1967 | 36.1 C (97.0 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 40.0 C (104.0 F) |
| 1970 | 36.7 C (98.1 F) |
| 1971 | 36.7 C (98.1 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 38.3 C (100.9 F) |
| 1974 | 38.9 C (102.0 F) |
| 1975 | 37.2 C (99.0 F) |
| 1976 | 38.9 C (102.0 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 36.1 C (97.0 F) |
| 1979 | 38.3 C (100.9 F) |
| 1980 | 36.1 C (97.0 F) |
| 1981 | 37.8 C (100.0 F) |
| 1982 | 36.1 C (97.0 F) |
| 1983 | 37.8 C (100.0 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 37.2 C (99.0 F) |
| 1987 | 36.1 C (97.0 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 38.3 C (100.9 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 38.9 C (102.0 F) |
| 1992 | 38.3 C (100.9 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 38.9 C (102.0 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 37.8 C (100.0 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 38.9 C (102.0 F) |
| 1999 | 36.1 C (97.0 F) |
| 2000 | 40.0 C (104.0 F) |
| 2001 | 38.9 C (102.0 F) |
| 2002 | 39.4 C (102.9 F) |
| 2003 | 38.9 C (102.0 F) |
| 2004 | 37.2 C (99.0 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 38.9 C (102.0 F) |
| 2007 | 38.9 C (102.0 F) |
| 2008 | 37.2 C (99.0 F) |
| 2009 | 36.7 C (98.1 F) |
| 2010 | 38.3 C (100.9 F) |
| 2011 | 36.7 C (98.1 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 38.3 C (100.9 F) |
| 2014 | 36.7 C (98.1 F) |
| 2015 | 38.3 C (100.9 F) |
| 2016 | 36.7 C (98.1 F) |
| 2017 | 37.8 C (100.0 F) |
| 2018 | 38.9 C (102.0 F) |
| 2019 | 37.2 C (99.0 F) |
| 2020 | 40.0 C (104.0 F) |
| 2021 | 38.9 C (102.0 F) |
| 2022 | 38.9 C (102.0 F) |
| 2023 | 37.8 C (100.0 F) |
| 2024 | 38.9 C (102.0 F) |
| 2025 | 36.7 C (98.1 F) |
| 2026 | 39.4 C (102.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1939 | -21.7 C (-7.1 F) |
| 1940 | -18.9 C (-2.0 F) |
| 1941 | -23.3 C (-9.9 F) |
| 1942 | -30.6 C (-23.1 F) |
| 1943 | -20.6 C (-5.1 F) |
| 1944 | -24.4 C (-11.9 F) |
| 1945 | -26.1 C (-15.0 F) |
| 1946 | -20.6 C (-5.1 F) |
| 1947 | -25.0 C (-13.0 F) |
| 1948 | -23.3 C (-9.9 F) |
| 1949 | -35.0 C (-31.0 F) |
| 1950 | -27.2 C (-17.0 F) |
| 1951 | -22.8 C (-9.0 F) |
| 1952 | -26.1 C (-15.0 F) |
| 1953 | -16.1 C (3.0 F) |
| 1954 | -26.1 C (-15.0 F) |
| 1955 | -26.1 C (-15.0 F) |
| 1956 | -32.8 C (-27.0 F) |
| 1957 | -27.2 C (-17.0 F) |
| 1958 | -18.9 C (-2.0 F) |
| 1959 | -25.0 C (-13.0 F) |
| 1960 | -30.0 C (-22.0 F) |
| 1961 | -22.2 C (-8.0 F) |
| 1962 | -34.4 C (-29.9 F) |
| 1963 | -30.0 C (-22.0 F) |
| 1964 | -28.3 C (-18.9 F) |
| 1965 | -19.4 C (-2.9 F) |
| 1966 | -19.4 C (-2.9 F) |
| 1967 | -24.4 C (-11.9 F) |
| 1968 | -23.9 C (-11.0 F) |
| 1969 | -17.8 C (0.0 F) |
| 1970 | -23.3 C (-9.9 F) |
| 1971 | -25.0 C (-13.0 F) |
| 1972 | -33.3 C (-27.9 F) |
| 1973 | -25.6 C (-14.1 F) |
| 1974 | -28.3 C (-18.9 F) |
| 1975 | -24.4 C (-11.9 F) |
| 1976 | -18.9 C (-2.0 F) |
| 1977 | -26.7 C (-16.1 F) |
| 1978 | -27.2 C (-17.0 F) |
| 1979 | -33.3 C (-27.9 F) |
| 1980 | -27.2 C (-17.0 F) |
| 1981 | -21.7 C (-7.1 F) |
| 1982 | -31.1 C (-24.0 F) |
| 1983 | -31.7 C (-25.1 F) |
| 1984 | -33.3 C (-27.9 F) |
| 1985 | -36.1 C (-33.0 F) |
| 1986 | -19.4 C (-2.9 F) |
| 1987 | -25.6 C (-14.1 F) |
| 1988 | -25.6 C (-14.1 F) |
| 1989 | -29.4 C (-20.9 F) |
| 1990 | -33.9 C (-29.0 F) |
| 1991 | -25.6 C (-14.1 F) |
| 1992 | -30.0 C (-22.0 F) |
| 1993 | -27.2 C (-17.0 F) |
| 1994 | -19.4 C (-2.9 F) |
| 1995 | -19.4 C (-2.9 F) |
| 1996 | -22.8 C (-9.0 F) |
| 1997 | -17.8 C (0.0 F) |
| 1998 | -26.1 C (-15.0 F) |
| 1999 | -20.0 C (-4.0 F) |
| 2000 | -15.6 C (3.9 F) |
| 2001 | -22.8 C (-9.0 F) |
| 2002 | -22.2 C (-8.0 F) |
| 2003 | -18.9 C (-2.0 F) |
| 2004 | -22.8 C (-9.0 F) |
| 2005 | -22.8 C (-9.0 F) |
| 2006 | -21.1 C (-6.0 F) |
| 2007 | -23.3 C (-9.9 F) |
| 2008 | -24.4 C (-11.9 F) |
| 2009 | -27.2 C (-17.0 F) |
| 2010 | -20.6 C (-5.1 F) |
| 2011 | -25.6 C (-14.1 F) |
| 2012 | -20.0 C (-4.0 F) |
| 2013 | -26.1 C (-15.0 F) |
| 2014 | -24.9 C (-12.8 F) |
| 2015 | -25.5 C (-13.9 F) |
| 2016 | -25.5 C (-13.9 F) |
| 2017 | -29.9 C (-21.8 F) |
| 2018 | -19.9 C (-3.8 F) |
| 2019 | -23.8 C (-10.8 F) |
| 2020 | -21.6 C (-6.9 F) |
| 2021 | -14.3 C (6.3 F) |
| 2022 | -23.8 C (-10.8 F) |
| 2023 | -26.6 C (-15.9 F) |
| 2024 | -25.5 C (-13.9 F) |
| 2025 | -23.8 C (-10.8 F) |
| 2026 | -13.3 C (8.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1939 | 12.2 mm (0.5 in) |
| 1940 | 26.7 mm (1.1 in) |
| 1941 | 20.8 mm (0.8 in) |
| 1942 | 37.1 mm (1.5 in) |
| 1943 | 13.5 mm (0.5 in) |
| 1944 | 24.6 mm (1.0 in) |
| 1945 | 19.6 mm (0.8 in) |
| 1946 | 29.5 mm (1.2 in) |
| 1947 | 24.4 mm (1.0 in) |
| 1948 | 26.7 mm (1.1 in) |
| 1949 | 11.4 mm (0.4 in) |
| 1950 | 17.8 mm (0.7 in) |
| 1951 | 11.7 mm (0.5 in) |
| 1952 | 15.7 mm (0.6 in) |
| 1953 | 18.5 mm (0.7 in) |
| 1954 | 20.1 mm (0.8 in) |
| 1955 | 15.0 mm (0.6 in) |
| 1956 | 15.7 mm (0.6 in) |
| 1957 | 20.1 mm (0.8 in) |
| 1958 | 20.6 mm (0.8 in) |
| 1959 | 11.9 mm (0.5 in) |
| 1960 | 25.1 mm (1.0 in) |
| 1961 | 32.5 mm (1.3 in) |
| 1962 | 22.9 mm (0.9 in) |
| 1963 | 22.1 mm (0.9 in) |
| 1964 | 18.8 mm (0.7 in) |
| 1965 | 24.9 mm (1.0 in) |
| 1966 | 11.2 mm (0.4 in) |
| 1967 | 19.1 mm (0.8 in) |
| 1968 | 24.4 mm (1.0 in) |
| 1969 | 21.3 mm (0.8 in) |
| 1970 | 32.8 mm (1.3 in) |
| 1971 | 26.7 mm (1.1 in) |
| 1972 | 21.8 mm (0.9 in) |
| 1973 | 23.1 mm (0.9 in) |
| 1974 | 27.2 mm (1.1 in) |
| 1975 | 24.1 mm (0.9 in) |
| 1976 | 42.7 mm (1.7 in) |
| 1977 | 16.3 mm (0.6 in) |
| 1978 | 21.8 mm (0.9 in) |
| 1979 | 12.2 mm (0.5 in) |
| 1980 | 33.3 mm (1.3 in) |
| 1981 | 23.9 mm (0.9 in) |
| 1982 | 28.2 mm (1.1 in) |
| 1983 | 25.4 mm (1.0 in) |
| 1984 | 23.9 mm (0.9 in) |
| 1985 | 17.3 mm (0.7 in) |
| 1986 | 14.5 mm (0.6 in) |
| 1987 | 21.1 mm (0.8 in) |
| 1988 | 16.3 mm (0.6 in) |
| 1989 | 18.8 mm (0.7 in) |
| 1990 | 24.6 mm (1.0 in) |
| 1991 | 22.4 mm (0.9 in) |
| 1992 | 16.0 mm (0.6 in) |
| 1993 | 23.6 mm (0.9 in) |
| 1994 | 11.7 mm (0.5 in) |
| 1995 | 20.8 mm (0.8 in) |
| 1996 | 20.3 mm (0.8 in) |
| 1997 | 20.1 mm (0.8 in) |
| 1998 | 17.5 mm (0.7 in) |
| 1999 | 16.0 mm (0.6 in) |
| 2000 | 30.7 mm (1.2 in) |
| 2001 | 15.7 mm (0.6 in) |
| 2002 | 27.2 mm (1.1 in) |
| 2003 | 21.1 mm (0.8 in) |
| 2004 | 17.0 mm (0.7 in) |
| 2005 | 27.9 mm (1.1 in) |
| 2006 | 20.1 mm (0.8 in) |
| 2007 | 36.8 mm (1.4 in) |
| 2008 | 21.8 mm (0.9 in) |
| 2009 | 33.8 mm (1.3 in) |
| 2010 | 18.3 mm (0.7 in) |
| 2011 | 21.8 mm (0.9 in) |
| 2012 | 17.5 mm (0.7 in) |
| 2013 | 11.4 mm (0.4 in) |
| 2014 | 20.8 mm (0.8 in) |
| 2015 | 18.0 mm (0.7 in) |
| 2016 | 28.2 mm (1.1 in) |
| 2017 | 26.4 mm (1.0 in) |
| 2018 | 16.0 mm (0.6 in) |
| 2019 | 13.2 mm (0.5 in) |
| 2020 | 16.0 mm (0.6 in) |
| 2021 | 25.9 mm (1.0 in) |
| 2022 | 17.5 mm (0.7 in) |
| 2023 | 20.8 mm (0.8 in) |
| 2024 | 29.5 mm (1.2 in) |
| 2025 | 24.9 mm (1.0 in) |
| 2026 | 30.5 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1939 | 17.6 mm (0.7 in) |
| 1940 | 38.6 mm (1.5 in) |
| 1941 | 39.2 mm (1.5 in) |
| 1942 | 38.6 mm (1.5 in) |
| 1943 | 22.4 mm (0.9 in) |
| 1944 | 40.9 mm (1.6 in) |
| 1945 | 29.9 mm (1.2 in) |
| 1946 | 36.3 mm (1.4 in) |
| 1947 | 38.9 mm (1.5 in) |
| 1948 | 56.9 mm (2.2 in) |
| 1949 | 27.4 mm (1.1 in) |
| 1950 | 31.8 mm (1.3 in) |
| 1951 | 25.9 mm (1.0 in) |
| 1952 | 38.6 mm (1.5 in) |
| 1953 | 23.1 mm (0.9 in) |
| 1954 | 23.1 mm (0.9 in) |
| 1955 | 23.8 mm (0.9 in) |
| 1956 | 37.3 mm (1.5 in) |
| 1957 | 39.3 mm (1.5 in) |
| 1958 | 30.2 mm (1.2 in) |
| 1959 | 26.2 mm (1.0 in) |
| 1960 | 32.7 mm (1.3 in) |
| 1961 | 40.9 mm (1.6 in) |
| 1962 | 23.9 mm (0.9 in) |
| 1963 | 41.7 mm (1.6 in) |
| 1964 | 41.9 mm (1.6 in) |
| 1965 | 27.4 mm (1.1 in) |
| 1966 | 20.9 mm (0.8 in) |
| 1967 | 39.1 mm (1.5 in) |
| 1968 | 55.9 mm (2.2 in) |
| 1969 | 32.7 mm (1.3 in) |
| 1970 | 44.5 mm (1.8 in) |
| 1971 | 44.0 mm (1.7 in) |
| 1972 | 31.0 mm (1.2 in) |
| 1973 | 43.7 mm (1.7 in) |
| 1974 | 32.0 mm (1.3 in) |
| 1975 | 44.4 mm (1.7 in) |
| 1976 | 50.5 mm (2.0 in) |
| 1977 | 33.0 mm (1.3 in) |
| 1978 | 41.0 mm (1.6 in) |
| 1979 | 15.0 mm (0.6 in) |
| 1980 | 54.4 mm (2.1 in) |
| 1981 | 39.5 mm (1.6 in) |
| 1982 | 46.2 mm (1.8 in) |
| 1983 | 46.7 mm (1.8 in) |
| 1984 | 34.3 mm (1.4 in) |
| 1985 | 27.4 mm (1.1 in) |
| 1986 | 39.5 mm (1.6 in) |
| 1987 | 32.8 mm (1.3 in) |
| 1988 | 22.6 mm (0.9 in) |
| 1989 | 26.1 mm (1.0 in) |
| 1990 | 37.8 mm (1.5 in) |
| 1991 | 46.5 mm (1.8 in) |
| 1992 | 28.2 mm (1.1 in) |
| 1993 | 52.9 mm (2.1 in) |
| 1994 | 24.6 mm (1.0 in) |
| 1995 | 37.5 mm (1.5 in) |
| 1996 | 35.8 mm (1.4 in) |
| 1997 | 29.4 mm (1.2 in) |
| 1998 | 34.7 mm (1.4 in) |
| 1999 | 31.8 mm (1.3 in) |
| 2000 | 32.8 mm (1.3 in) |
| 2001 | 17.8 mm (0.7 in) |
| 2002 | 28.5 mm (1.1 in) |
| 2003 | 36.1 mm (1.4 in) |
| 2004 | 24.3 mm (1.0 in) |
| 2005 | 34.0 mm (1.3 in) |
| 2006 | 23.7 mm (0.9 in) |
| 2007 | 47.8 mm (1.9 in) |
| 2008 | 42.2 mm (1.7 in) |
| 2009 | 58.0 mm (2.3 in) |
| 2010 | 27.7 mm (1.1 in) |
| 2011 | 39.5 mm (1.6 in) |
| 2012 | 34.2 mm (1.3 in) |
| 2013 | 11.9 mm (0.5 in) |
| 2014 | 32.2 mm (1.3 in) |
| 2015 | 40.1 mm (1.6 in) |
| 2016 | 37.1 mm (1.5 in) |
| 2017 | 53.4 mm (2.1 in) |
| 2018 | 18.8 mm (0.7 in) |
| 2019 | 24.0 mm (0.9 in) |
| 2020 | 31.8 mm (1.3 in) |
| 2021 | 34.8 mm (1.4 in) |
| 2022 | 29.8 mm (1.2 in) |
| 2023 | 37.0 mm (1.5 in) |
| 2024 | 57.7 mm (2.3 in) |
| 2025 | 31.5 mm (1.2 in) |
| 2026 | 41.7 mm (1.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1939 | 55 days |
| 1940 | 47 days |
| 1941 | 19 days |
| 1942 | 30 days |
| 1943 | 50 days |
| 1944 | 58 days |
| 1945 | 20 days |
| 1946 | 20 days |
| 1947 | 32 days |
| 1948 | 41 days |
| 1949 | 44 days |
| 1950 | 26 days |
| 1951 | 41 days |
| 1952 | 63 days |
| 1953 | 67 days |
| 1954 | 20 days |
| 1955 | 22 days |
| 1956 | 69 days |
| 1957 | 32 days |
| 1958 | 44 days |
| 1959 | 76 days |
| 1960 | 41 days |
| 1961 | 51 days |
| 1962 | 35 days |
| 1963 | 39 days |
| 1964 | 61 days |
| 1965 | 44 days |
| 1966 | 31 days |
| 1967 | 54 days |
| 1968 | 21 days |
| 1969 | 37 days |
| 1970 | 29 days |
| 1971 | 25 days |
| 1972 | 25 days |
| 1973 | 30 days |
| 1974 | 56 days |
| 1975 | 68 days |
| 1976 | 61 days |
| 1977 | 38 days |
| 1978 | 71 days |
| 1979 | 36 days |
| 1980 | 26 days |
| 1981 | 36 days |
| 1982 | 16 days |
| 1983 | 22 days |
| 1984 | 20 days |
| 1985 | 30 days |
| 1986 | 81 days |
| 1987 | 48 days |
| 1988 | 88 days |
| 1989 | 26 days |
| 1990 | 46 days |
| 1991 | 26 days |
| 1992 | 41 days |
| 1993 | 37 days |
| 1994 | 38 days |
| 1995 | 24 days |
| 1996 | 48 days |
| 1997 | 22 days |
| 1998 | 46 days |
| 1999 | 58 days |
| 2000 | 37 days |
| 2001 | 32 days |
| 2002 | 42 days |
| 2003 | 63 days |
| 2004 | 26 days |
| 2005 | 45 days |
| 2006 | 33 days |
| 2007 | 46 days |
| 2008 | 41 days |
| 2009 | 49 days |
| 2010 | 40 days |
| 2011 | 37 days |
| 2012 | 44 days |
| 2013 | 42 days |
| 2014 | 37 days |
| 2015 | 36 days |
| 2016 | 46 days |
| 2017 | 40 days |
| 2018 | 42 days |
| 2019 | 31 days |
| 2020 | 27 days |
| 2021 | 66 days |
| 2022 | 30 days |
| 2023 | 49 days |
| 2024 | 32 days |
| 2025 | 52 days |
| 2026 | 33 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
87 years with a frostAcross 87 years with a frost, the median last spring frost at Pocatello Rgnl AP falls on 20 May and the median first autumn frost on 18 September, which leaves a median of 119 days between them.
In 1996 to 2025 the median growing season was 113 days. That is 18 days fewer than in 1939 to 1968.
Fitted over all years, the growing season changes by -2.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1939 to 1968) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 20 May | 19 May | 21 May | 2 days later | +1.8 days per decade |
| First autumn frost | 18 September | 21 September | 15 September | 6 days earlier | -0.3 days per decade |
| Growing days | 119 days | 131 days | 113 days | 18 days fewer | -2.2 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
87 years, 1939 to 2025A day with at least 20.9 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 39.5 mm (1.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 20.9 mm (0.8 in) | |
| 5 years | 26.7 mm (1.1 in) | |
| 10 years | 30.2 mm (1.2 in) | |
| 25 years | 34.2 mm (1.3 in) | |
| 50 years | 37.0 mm (1.5 in) | |
| 100 years | 39.5 mm (1.6 in) | Longer than the 87 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, 87 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: 42.7 mm (1.7 in) in 1976; 37.1 mm (1.5 in) in 1942; 36.8 mm (1.4 in) in 2007.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Pocatello Rgnl AP had a mean temperature of 8.7 C (47.7 F) and 308.0 mm (12.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Scipio (United States, 410 km away), Tensleep 4NE (United States, 438 km away) and Manti (United States, 415 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Scipio | United States | 410 km (255 mi) | 8.9 C (48.0 F) | 360.3 mm (14.2 in) | 0.47 |
| Tensleep 4NE | United States | 438 km (272 mi) | 8.6 C (47.5 F) | 327.8 mm (12.9 in) | 0.59 |
| Manti | United States | 415 km (258 mi) | 8.7 C (47.6 F) | 349.3 mm (13.8 in) | 0.60 |
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-15).