Vichy Rolla Natl AP Weather Records (USW00013997)
Record envelope, standing records and threshold days for Vichy Rolla Natl AP (USW00013997), Missouri, United States, with 79 years of record.
Key Facts for Vichy Rolla Natl AP
- Vichy Rolla Natl AP (USW00013997) is a weather station in Missouri, United States at 38.13 latitude and -91.76 longitude, 338 m (1,110 ft) above sea level.
- The station reports from 1948 to 2026, 79 years of record.
- 1,464 records set at Vichy Rolla Natl AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Vichy Rolla Natl AP set a daily record high minimum temperature of 20.6 C (69.1 F) on 13 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Missouri, United States, 38.13 latitude, -91.76 longitude.
- Elevation: 338 m (1,110 ft).
- Period of record: 1948 to 2026, 79 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
20 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 24.4 C (75.9 F) | -26.7 C (-16.1 F) | 20.0 C (68.0 F) | -24.4 C (-11.9 F) |
| Feb | 27.8 C (82.0 F) | -24.4 C (-11.9 F) | 23.9 C (75.0 F) | -18.9 C (-2.0 F) |
| Mar | 32.8 C (91.0 F) | -21.7 C (-7.1 F) | 32.8 C (91.0 F) | -10.6 C (12.9 F) |
| Apr | 33.9 C (93.0 F) | -7.8 C (18.0 F) | 29.4 C (84.9 F) | 1.7 C (35.1 F) |
| May | 36.7 C (98.1 F) | -1.1 C (30.0 F) | 28.3 C (82.9 F) | 1.7 C (35.1 F) |
| Jun | 41.1 C (106.0 F) | 6.1 C (43.0 F) | 33.3 C (91.9 F) | 11.7 C (53.1 F) |
| Jul | 45.0 C (113.0 F) | 8.9 C (48.0 F) | 35.6 C (96.1 F) | 16.7 C (62.1 F) |
| Aug | 41.7 C (107.1 F) | 7.2 C (45.0 F) | 36.1 C (97.0 F) | 14.4 C (57.9 F) |
| Sep | 38.9 C (102.0 F) | 1.1 C (34.0 F) | 37.2 C (99.0 F) | 11.7 C (53.1 F) |
| Oct | 33.9 C (93.0 F) | -6.6 C (20.1 F) | 33.9 C (93.0 F) | 6.7 C (44.1 F) |
| Nov | 29.4 C (84.9 F) | -16.1 C (3.0 F) | n/a | n/a |
| Dec | 25.0 C (77.0 F) | -23.9 C (-11.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 18 |
| 1949 | 21 |
| 1950 | 34 |
| 1951 | 35 |
| 1952 | 43 |
| 1953 | 37 |
| 1954 | 37 |
| 1955 | 25 |
| 1956 | 24 |
| 1957 | 8 |
| 1958 | 17 |
| 1959 | 11 |
| 1960 | 23 |
| 1961 | 18 |
| 1962 | 32 |
| 1963 | 40 |
| 1964 | 14 |
| 1965 | 26 |
| 1966 | 19 |
| 1967 | 22 |
| 1968 | 10 |
| 1969 | 9 |
| 1970 | 17 |
| 1971 | 23 |
| 1972 | 21 |
| 1973 | 9 |
| 1974 | 25 |
| 1975 | 10 |
| 1976 | 30 |
| 1977 | 10 |
| 1978 | 19 |
| 1979 | 16 |
| 1980 | 42 |
| 1981 | 13 |
| 1982 | 16 |
| 1990 | 17 |
| 1991 | 27 |
| 1992 | 11 |
| 1993 | 12 |
| 1994 | 16 |
| 1995 | 24 |
| 1996 | 26 |
| 1997 | 16 |
| 1998 | 9 |
| 1999 | 20 |
| 2000 | 34 |
| 2001 | 16 |
| 2002 | 15 |
| 2003 | 15 |
| 2004 | 18 |
| 2005 | 11 |
| 2006 | 24 |
| 2007 | 22 |
| 2008 | 13 |
| 2009 | 18 |
| 2010 | 11 |
| 2011 | 20 |
| 2012 | 29 |
| 2013 | 14 |
| 2014 | 22 |
| 2015 | 10 |
| 2016 | 17 |
| 2017 | 25 |
| 2018 | 18 |
| 2019 | 11 |
| 2020 | 14 |
| 2021 | 20 |
| 2022 | 28 |
| 2023 | 23 |
| 2024 | 17 |
| 2025 | 25 |
| 2026 | 22 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1980-07-11 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
| 1982-01-10 | Record low minimum temperature | Record low minimum temperature -26.7 C (-16.1 F) |
| 1998-06-04 | Record daily precipitation | Record daily precipitation 143.3 mm (5.6 in) |
| 2021-02-15 | Record low maximum temperature | Record low maximum temperature -17.7 C (0.1 F) |
| 2024-01-14 | Record low maximum temperature | Record low maximum temperature -18.2 C (-0.8 F) |
Wettest Day of Each Month
Jun: 143.3 mm (5.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 53.8 mm (2.1 in) | 4 January 1993 |
| Feb | 55.6 mm (2.2 in) | 22 February 1975 |
| Mar | 96.5 mm (3.8 in) | 18 March 2008 |
| Apr | 103.4 mm (4.1 in) | 11 April 1994 |
| May | 83.1 mm (3.3 in) | 13 May 1967 |
| Jun | 143.3 mm (5.6 in) | 4 June 1998 |
| Jul | 117.1 mm (4.6 in) | 26 July 1998 |
| Aug | 88.6 mm (3.5 in) | 7 August 1999 |
| Sep | 112.5 mm (4.4 in) | 14 September 2008 |
| Oct | 116.1 mm (4.6 in) | 4 October 1959 |
| Nov | 142.2 mm (5.6 in) | 1 November 1972 |
| Dec | 109.5 mm (4.3 in) | 26 December 2015 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 365 | 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 | 364 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 362 | 99% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 364 | 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 | 356 | 98% | Yes |
| 1983 | 59 | 16% | No |
| 1990 | 153 | 42% | No |
| 1991 | 365 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 363 | 99% | Yes |
| 1996 | 346 | 95% | Yes |
| 1997 | 358 | 98% | Yes |
| 1998 | 363 | 99% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 365 | 100% | Yes |
| 2004 | 359 | 98% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 362 | 99% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 364 | 100% | Yes |
| 2012 | 362 | 99% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 363 | 99% | Yes |
| 2019 | 363 | 99% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 364 | 100% | Yes |
| 2022 | 357 | 98% | Yes |
| 2023 | 362 | 99% | Yes |
| 2024 | 361 | 99% | Yes |
| 2025 | 362 | 99% | Yes |
| 2026 | 287 | 79% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 October 2026 | Vichy Rolla Natl AP, US | daily high min (Provisional) | 20.6 C (69.1 F) | 2.3 C (4.1 F) | 64 years | 30 of 100 (Routine) |
| 13 October 2026 | Vichy Rolla Natl AP, US | monthly high max (Tie, Provisional) | 33.9 C (93.0 F) | tie | 63 years | 8 of 100 (Routine) |
| 12 October 2026 | Vichy Rolla Natl AP, US | daily high max (Provisional) | 33.3 C (91.9 F) | 1.1 C (2.0 F) | 1 year | 8 of 100 (Routine) |
| 9 October 2026 | Vichy Rolla Natl AP, US | daily high max (Provisional) | 31.7 C (89.1 F) | 1.7 C (3.1 F) | 45 years | 22 of 100 (Routine) |
| 1 October 2026 | Vichy Rolla Natl AP, US | daily high max (Tie, Provisional) | 32.2 C (90.0 F) | tie | 73 years | 7 of 100 (Routine) |
| 30 September 2026 | Vichy Rolla Natl AP, US | daily high min (Provisional) | 22.2 C (72.0 F) | 1.1 C (2.0 F) | 55 years | 25 of 100 (Routine) |
| 18 September 2026 | Vichy Rolla Natl AP, US | daily high max (Tie, Provisional) | 35.0 C (95.0 F) | tie | 72 years | 7 of 100 (Routine) |
| 16 September 2026 | Vichy Rolla Natl AP, US | daily high min (Provisional) | 22.2 C (72.0 F) | 1.1 C (2.0 F) | 48 years | 23 of 100 (Routine) |
| 15 September 2026 | Vichy Rolla Natl AP, US | daily high max (Provisional) | 37.2 C (99.0 F) | 2.8 C (5.0 F) | 69 years | 32 of 100 (Routine) |
| 15 September 2026 | Vichy Rolla Natl AP, US | daily high min (Provisional) | 23.3 C (73.9 F) | 2.2 C (4.0 F) | 33 years | 21 of 100 (Routine) |
| 8 September 2026 | Vichy Rolla Natl AP, US | daily high max (Provisional) | 36.1 C (97.0 F) | 1.1 C (2.0 F) | 45 years | 22 of 100 (Routine) |
| 2 September 2026 | Vichy Rolla Natl AP, US | daily high min (Provisional) | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 64 years | 27 of 100 (Routine) |
| 15 August 2026 | Vichy Rolla Natl AP, US | daily high min (Tie) | 25.0 C (77.0 F) | tie | 72 years | 7 of 100 (Routine) |
| 14 August 2026 | Vichy Rolla Natl AP, US | daily high min (Tie) | 25.0 C (77.0 F) | tie | 31 years | 4 of 100 (Routine) |
| 13 August 2026 | Vichy Rolla Natl AP, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 31 years | 4 of 100 (Routine) |
| 12 August 2026 | Vichy Rolla Natl AP, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 31 years | 4 of 100 (Routine) |
| 11 August 2026 | Vichy Rolla Natl AP, US | daily high min (Tie) | 23.9 C (75.0 F) | tie | 31 years | 4 of 100 (Routine) |
| 1 August 2026 | Vichy Rolla Natl AP, US | daily low max | 21.7 C (71.1 F) | 0.5 C (0.9 F) | 57 years | 25 of 100 (Routine) |
| 22 June 2026 | Vichy Rolla Natl AP, US | daily low max | 19.4 C (66.9 F) | 1.7 C (3.1 F) | 68 years | 31 of 100 (Routine) |
| 11 June 2026 | Vichy Rolla Natl AP, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 73 years | 7 of 100 (Routine) |
Climate Trend
69 complete years, 1948 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1948 | 12.6 C | -0.46 C |
| 1949 | 13.1 C | +0.07 C |
| 1950 | 12.1 C | -0.92 C |
| 1951 | 11.9 C | -1.12 C |
| 1952 | 13.6 C | +0.54 C |
| 1953 | 14.4 C | +1.30 C |
| 1954 | 14.2 C | +1.12 C |
| 1955 | 13.2 C | +0.09 C |
| 1956 | 13.5 C | +0.39 C |
| 1957 | 12.8 C | -0.29 C |
| 1958 | 12.0 C | -1.03 C |
| 1959 | 12.9 C | -0.14 C |
| 1960 | 12.2 C | -0.83 C |
| 1961 | 12.3 C | -0.76 C |
| 1962 | 13.0 C | -0.10 C |
| 1963 | 13.1 C | +0.06 C |
| 1964 | 13.7 C | +0.59 C |
| 1965 | 13.4 C | +0.37 C |
| 1966 | 12.5 C | -0.52 C |
| 1967 | 12.7 C | -0.34 C |
| 1968 | 12.4 C | -0.65 C |
| 1969 | 12.5 C | -0.57 C |
| 1970 | 12.8 C | -0.24 C |
| 1971 | 13.4 C | +0.36 C |
| 1972 | 12.6 C | -0.42 C |
| 1973 | 13.6 C | +0.51 C |
| 1974 | 13.0 C | -0.04 C |
| 1975 | 13.2 C | +0.15 C |
| 1976 | 12.5 C | -0.52 C |
| 1977 | 13.2 C | +0.16 C |
| 1978 | 12.0 C | -1.10 C |
| 1979 | 11.7 C | -1.39 C |
| 1980 | 13.4 C | +0.30 C |
| 1981 | 13.1 C | +0.04 C |
| 1982 | 12.6 C | -0.49 C |
| 1991 | 14.0 C | +0.94 C |
| 1992 | 13.0 C | -0.10 C |
| 1993 | 12.3 C | -0.81 C |
| 1994 | 13.3 C | +0.28 C |
| 1995 | 13.0 C | -0.03 C |
| 1997 | 12.0 C | -1.08 C |
| 1998 | 13.7 C | +0.61 C |
| 1999 | 13.7 C | +0.65 C |
| 2000 | 12.8 C | -0.31 C |
| 2001 | 13.3 C | +0.25 C |
| 2002 | 12.8 C | -0.22 C |
| 2003 | 12.4 C | -0.65 C |
| 2004 | 12.8 C | -0.26 C |
| 2005 | 13.8 C | +0.76 C |
| 2006 | 13.8 C | +0.74 C |
| 2007 | 13.5 C | +0.47 C |
| 2008 | 12.2 C | -0.87 C |
| 2009 | 12.6 C | -0.48 C |
| 2010 | 13.0 C | -0.08 C |
| 2011 | 13.3 C | +0.20 C |
| 2012 | 14.7 C | +1.67 C |
| 2013 | 11.8 C | -1.26 C |
| 2014 | 11.7 C | -1.38 C |
| 2015 | 13.3 C | +0.24 C |
| 2016 | 13.9 C | +0.88 C |
| 2017 | 14.1 C | +1.04 C |
| 2018 | 13.0 C | -0.06 C |
| 2019 | 13.1 C | +0.03 C |
| 2020 | 13.4 C | +0.32 C |
| 2021 | 13.7 C | +0.64 C |
| 2022 | 13.2 C | +0.14 C |
| 2023 | 14.3 C | +1.26 C |
| 2024 | 14.6 C | +1.52 C |
| 2025 | 13.7 C | +0.68 C |
The annual mean temperature here has risen by 0.08 C (0.01 to 0.14) per decade over 1948 to 2025. In Fahrenheit: 0.13 F (0.01 to 0.26) per decade. The slope is a straight line fitted to 69 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.08 C (0.01 to 0.14) per decade | 0.14 F (0.01 to 0.26) per decade | 1948 to 2025 | 69 | Rise |
| Mean daily maximum | 0.09 C (0.00 to 0.18) per decade | 0.16 F (0.00 to 0.32) per decade | 1948 to 2025 | 69 | Rise |
| Mean daily minimum | 0.06 C (0.00 to 0.12) per decade | 0.11 F (0.00 to 0.22) per decade | 1948 to 2025 | 69 | 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
1948 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.0 C (113.0 F) | 1954 | 36.7 C (98.1 F) | 73 |
| Coldest night (TNn) | -26.7 C (-16.1 F) | 1982 | -20.0 C (-4.0 F) | 73 |
| Wettest day (Rx1day) | 143.3 mm (5.6 in) | 1998 | 68.1 mm (2.7 in) | 72 |
| Wettest five days (Rx5day) | 213.0 mm (8.4 in) | 2017 | 98.0 mm (3.9 in) | 72 |
| Longest dry spell (CDD) | 34 days | 1963 | 22 days | 72 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 36.1 C (97.0 F) |
| 1949 | 34.4 C (93.9 F) |
| 1950 | 33.9 C (93.0 F) |
| 1951 | 35.0 C (95.0 F) |
| 1952 | 40.0 C (104.0 F) |
| 1953 | 39.4 C (102.9 F) |
| 1954 | 45.0 C (113.0 F) |
| 1955 | 36.1 C (97.0 F) |
| 1956 | 37.2 C (99.0 F) |
| 1957 | 36.1 C (97.0 F) |
| 1958 | 36.1 C (97.0 F) |
| 1959 | 36.7 C (98.1 F) |
| 1960 | 37.2 C (99.0 F) |
| 1961 | 33.3 C (91.9 F) |
| 1962 | 40.0 C (104.0 F) |
| 1963 | 37.8 C (100.0 F) |
| 1964 | 40.0 C (104.0 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 40.0 C (104.0 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 35.6 C (96.1 F) |
| 1969 | 36.1 C (97.0 F) |
| 1970 | 37.8 C (100.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 38.3 C (100.9 F) |
| 1974 | 38.3 C (100.9 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 36.1 C (97.0 F) |
| 1979 | 34.4 C (93.9 F) |
| 1980 | 41.7 C (107.1 F) |
| 1981 | 35.0 C (95.0 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 20.6 C (69.1 F) |
| 1990 | 36.1 C (97.0 F) |
| 1991 | 37.2 C (99.0 F) |
| 1992 | 35.6 C (96.1 F) |
| 1993 | 35.6 C (96.1 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 36.7 C (98.1 F) |
| 1996 | 36.1 C (97.0 F) |
| 1997 | 37.2 C (99.0 F) |
| 1998 | 35.6 C (96.1 F) |
| 1999 | 40.0 C (104.0 F) |
| 2000 | 39.4 C (102.9 F) |
| 2001 | 37.2 C (99.0 F) |
| 2002 | 37.2 C (99.0 F) |
| 2003 | 38.9 C (102.0 F) |
| 2004 | 36.1 C (97.0 F) |
| 2005 | 39.4 C (102.9 F) |
| 2006 | 41.1 C (106.0 F) |
| 2007 | 41.7 C (107.1 F) |
| 2008 | 36.1 C (97.0 F) |
| 2009 | 35.0 C (95.0 F) |
| 2010 | 37.2 C (99.0 F) |
| 2011 | 38.3 C (100.9 F) |
| 2012 | 41.1 C (106.0 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 37.2 C (99.0 F) |
| 2015 | 34.4 C (93.9 F) |
| 2016 | 35.6 C (96.1 F) |
| 2017 | 36.7 C (98.1 F) |
| 2018 | 36.7 C (98.1 F) |
| 2019 | 34.4 C (93.9 F) |
| 2020 | 35.0 C (95.0 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 40.0 C (104.0 F) |
| 2023 | 40.0 C (104.0 F) |
| 2024 | 35.6 C (96.1 F) |
| 2025 | 37.2 C (99.0 F) |
| 2026 | 37.2 C (99.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -22.2 C (-8.0 F) |
| 1949 | -20.0 C (-4.0 F) |
| 1950 | -16.7 C (1.9 F) |
| 1951 | -23.3 C (-9.9 F) |
| 1952 | -15.6 C (3.9 F) |
| 1953 | -17.8 C (0.0 F) |
| 1954 | -17.2 C (1.0 F) |
| 1955 | -21.7 C (-7.1 F) |
| 1956 | -16.7 C (1.9 F) |
| 1957 | -17.2 C (1.0 F) |
| 1958 | -22.2 C (-8.0 F) |
| 1959 | -22.2 C (-8.0 F) |
| 1960 | -21.7 C (-7.1 F) |
| 1961 | -19.4 C (-2.9 F) |
| 1962 | -23.9 C (-11.0 F) |
| 1963 | -23.3 C (-9.9 F) |
| 1964 | -18.3 C (-0.9 F) |
| 1965 | -20.0 C (-4.0 F) |
| 1966 | -22.2 C (-8.0 F) |
| 1967 | -20.0 C (-4.0 F) |
| 1968 | -22.8 C (-9.0 F) |
| 1969 | -17.8 C (0.0 F) |
| 1970 | -22.8 C (-9.0 F) |
| 1971 | -18.3 C (-0.9 F) |
| 1972 | -21.7 C (-7.1 F) |
| 1973 | -20.0 C (-4.0 F) |
| 1974 | -23.9 C (-11.0 F) |
| 1975 | -17.2 C (1.0 F) |
| 1976 | -22.2 C (-8.0 F) |
| 1977 | -25.0 C (-13.0 F) |
| 1978 | -20.6 C (-5.1 F) |
| 1979 | -23.3 C (-9.9 F) |
| 1980 | -19.4 C (-2.9 F) |
| 1981 | -23.9 C (-11.0 F) |
| 1982 | -26.7 C (-16.1 F) |
| 1983 | -13.9 C (7.0 F) |
| 1990 | -18.3 C (-0.9 F) |
| 1991 | -14.4 C (6.1 F) |
| 1992 | -16.1 C (3.0 F) |
| 1993 | -20.0 C (-4.0 F) |
| 1994 | -21.1 C (-6.0 F) |
| 1995 | -18.3 C (-0.9 F) |
| 1996 | -24.4 C (-11.9 F) |
| 1997 | -23.9 C (-11.0 F) |
| 1998 | -18.3 C (-0.9 F) |
| 1999 | -22.2 C (-8.0 F) |
| 2000 | -20.6 C (-5.1 F) |
| 2001 | -20.6 C (-5.1 F) |
| 2002 | -20.0 C (-4.0 F) |
| 2003 | -22.2 C (-8.0 F) |
| 2004 | -18.3 C (-0.9 F) |
| 2005 | -16.7 C (1.9 F) |
| 2006 | -16.1 C (3.0 F) |
| 2007 | -16.1 C (3.0 F) |
| 2008 | -17.8 C (0.0 F) |
| 2009 | -18.9 C (-2.0 F) |
| 2010 | -22.8 C (-9.0 F) |
| 2011 | -22.8 C (-9.0 F) |
| 2012 | -11.7 C (10.9 F) |
| 2013 | -16.1 C (3.0 F) |
| 2014 | -24.9 C (-12.8 F) |
| 2015 | -18.2 C (-0.8 F) |
| 2016 | -19.3 C (-2.7 F) |
| 2017 | -18.8 C (-1.8 F) |
| 2018 | -22.1 C (-7.8 F) |
| 2019 | -19.3 C (-2.7 F) |
| 2020 | -15.5 C (4.1 F) |
| 2021 | -21.0 C (-5.8 F) |
| 2022 | -22.1 C (-7.8 F) |
| 2023 | -11.6 C (11.1 F) |
| 2024 | -21.6 C (-6.9 F) |
| 2025 | -22.7 C (-8.9 F) |
| 2026 | -24.4 C (-11.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 79.5 mm (3.1 in) |
| 1949 | 108.5 mm (4.3 in) |
| 1950 | 59.9 mm (2.4 in) |
| 1951 | 75.9 mm (3.0 in) |
| 1952 | 46.7 mm (1.8 in) |
| 1953 | 39.9 mm (1.6 in) |
| 1954 | 62.5 mm (2.5 in) |
| 1955 | 49.0 mm (1.9 in) |
| 1956 | 56.1 mm (2.2 in) |
| 1957 | 81.3 mm (3.2 in) |
| 1958 | 56.6 mm (2.2 in) |
| 1959 | 116.1 mm (4.6 in) |
| 1960 | 57.2 mm (2.3 in) |
| 1961 | 61.0 mm (2.4 in) |
| 1962 | 79.5 mm (3.1 in) |
| 1963 | 67.3 mm (2.6 in) |
| 1964 | 50.3 mm (2.0 in) |
| 1965 | 73.4 mm (2.9 in) |
| 1966 | 54.9 mm (2.2 in) |
| 1967 | 83.1 mm (3.3 in) |
| 1968 | 90.4 mm (3.6 in) |
| 1969 | 50.0 mm (2.0 in) |
| 1970 | 88.4 mm (3.5 in) |
| 1971 | 45.2 mm (1.8 in) |
| 1972 | 142.2 mm (5.6 in) |
| 1973 | 66.5 mm (2.6 in) |
| 1974 | 46.2 mm (1.8 in) |
| 1975 | 71.1 mm (2.8 in) |
| 1976 | 65.5 mm (2.6 in) |
| 1977 | 90.9 mm (3.6 in) |
| 1978 | 44.5 mm (1.8 in) |
| 1979 | 86.1 mm (3.4 in) |
| 1980 | 77.7 mm (3.1 in) |
| 1981 | 78.0 mm (3.1 in) |
| 1982 | 104.9 mm (4.1 in) |
| 1983 | 7.6 mm (0.30 in) |
| 1990 | 44.5 mm (1.8 in) |
| 1991 | 82.3 mm (3.2 in) |
| 1992 | 50.5 mm (2.0 in) |
| 1993 | 73.7 mm (2.9 in) |
| 1994 | 103.4 mm (4.1 in) |
| 1995 | 76.5 mm (3.0 in) |
| 1996 | 65.3 mm (2.6 in) |
| 1997 | n/a |
| 1998 | 143.3 mm (5.6 in) |
| 1999 | 88.6 mm (3.5 in) |
| 2000 | 38.4 mm (1.5 in) |
| 2001 | 58.9 mm (2.3 in) |
| 2002 | 68.8 mm (2.7 in) |
| 2003 | 91.2 mm (3.6 in) |
| 2004 | 70.1 mm (2.8 in) |
| 2005 | 52.8 mm (2.1 in) |
| 2006 | 111.0 mm (4.4 in) |
| 2007 | 66.5 mm (2.6 in) |
| 2008 | 112.5 mm (4.4 in) |
| 2009 | 85.6 mm (3.4 in) |
| 2010 | 69.6 mm (2.7 in) |
| 2011 | 54.9 mm (2.2 in) |
| 2012 | 87.6 mm (3.4 in) |
| 2013 | 55.9 mm (2.2 in) |
| 2014 | 56.4 mm (2.2 in) |
| 2015 | 129.8 mm (5.1 in) |
| 2016 | 83.8 mm (3.3 in) |
| 2017 | 85.3 mm (3.4 in) |
| 2018 | 58.7 mm (2.3 in) |
| 2019 | 64.0 mm (2.5 in) |
| 2020 | 61.2 mm (2.4 in) |
| 2021 | 46.5 mm (1.8 in) |
| 2022 | 55.1 mm (2.2 in) |
| 2023 | 39.1 mm (1.5 in) |
| 2024 | 86.4 mm (3.4 in) |
| 2025 | 61.2 mm (2.4 in) |
| 2026 | 70.6 mm (2.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 166.2 mm (6.5 in) |
| 1949 | 159.1 mm (6.3 in) |
| 1950 | 114.3 mm (4.5 in) |
| 1951 | 96.7 mm (3.8 in) |
| 1952 | 93.6 mm (3.7 in) |
| 1953 | 43.9 mm (1.7 in) |
| 1954 | 67.3 mm (2.6 in) |
| 1955 | 73.4 mm (2.9 in) |
| 1956 | 105.0 mm (4.1 in) |
| 1957 | 120.2 mm (4.7 in) |
| 1958 | 121.2 mm (4.8 in) |
| 1959 | 146.3 mm (5.8 in) |
| 1960 | 68.2 mm (2.7 in) |
| 1961 | 161.3 mm (6.4 in) |
| 1962 | 98.8 mm (3.9 in) |
| 1963 | 81.0 mm (3.2 in) |
| 1964 | 93.5 mm (3.7 in) |
| 1965 | 114.0 mm (4.5 in) |
| 1966 | 93.3 mm (3.7 in) |
| 1967 | 101.2 mm (4.0 in) |
| 1968 | 103.6 mm (4.1 in) |
| 1969 | 81.0 mm (3.2 in) |
| 1970 | 173.9 mm (6.8 in) |
| 1971 | 87.2 mm (3.4 in) |
| 1972 | 160.7 mm (6.3 in) |
| 1973 | 89.1 mm (3.5 in) |
| 1974 | 83.6 mm (3.3 in) |
| 1975 | 83.1 mm (3.3 in) |
| 1976 | 88.1 mm (3.5 in) |
| 1977 | 162.1 mm (6.4 in) |
| 1978 | 98.7 mm (3.9 in) |
| 1979 | 92.2 mm (3.6 in) |
| 1980 | 95.0 mm (3.7 in) |
| 1981 | 130.8 mm (5.1 in) |
| 1982 | 209.0 mm (8.2 in) |
| 1983 | 13.2 mm (0.5 in) |
| 1990 | 65.1 mm (2.6 in) |
| 1991 | 91.0 mm (3.6 in) |
| 1992 | 89.7 mm (3.5 in) |
| 1993 | 134.1 mm (5.3 in) |
| 1994 | 159.7 mm (6.3 in) |
| 1995 | 137.3 mm (5.4 in) |
| 1996 | 91.0 mm (3.6 in) |
| 1997 | n/a |
| 1998 | 169.2 mm (6.7 in) |
| 1999 | 92.9 mm (3.7 in) |
| 2000 | 80.0 mm (3.1 in) |
| 2001 | 111.0 mm (4.4 in) |
| 2002 | 95.5 mm (3.8 in) |
| 2003 | 107.7 mm (4.2 in) |
| 2004 | 90.1 mm (3.5 in) |
| 2005 | 134.3 mm (5.3 in) |
| 2006 | 111.3 mm (4.4 in) |
| 2007 | 82.2 mm (3.2 in) |
| 2008 | 137.8 mm (5.4 in) |
| 2009 | 137.7 mm (5.4 in) |
| 2010 | 122.2 mm (4.8 in) |
| 2011 | 84.6 mm (3.3 in) |
| 2012 | 113.3 mm (4.5 in) |
| 2013 | 95.2 mm (3.7 in) |
| 2014 | 82.1 mm (3.2 in) |
| 2015 | 207.8 mm (8.2 in) |
| 2016 | 153.6 mm (6.0 in) |
| 2017 | 213.0 mm (8.4 in) |
| 2018 | 97.2 mm (3.8 in) |
| 2019 | 87.2 mm (3.4 in) |
| 2020 | 81.5 mm (3.2 in) |
| 2021 | 103.1 mm (4.1 in) |
| 2022 | 82.3 mm (3.2 in) |
| 2023 | 71.4 mm (2.8 in) |
| 2024 | 136.7 mm (5.4 in) |
| 2025 | 93.2 mm (3.7 in) |
| 2026 | 125.7 mm (4.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 20 days |
| 1949 | 21 days |
| 1950 | 30 days |
| 1951 | 16 days |
| 1952 | 24 days |
| 1953 | 22 days |
| 1954 | 21 days |
| 1955 | 30 days |
| 1956 | 31 days |
| 1957 | 22 days |
| 1958 | 25 days |
| 1959 | 20 days |
| 1960 | 18 days |
| 1961 | 19 days |
| 1962 | 30 days |
| 1963 | 34 days |
| 1964 | 29 days |
| 1965 | 18 days |
| 1966 | 16 days |
| 1967 | 19 days |
| 1968 | 26 days |
| 1969 | 18 days |
| 1970 | 21 days |
| 1971 | 24 days |
| 1972 | 27 days |
| 1973 | 16 days |
| 1974 | 20 days |
| 1975 | 16 days |
| 1976 | 26 days |
| 1977 | 18 days |
| 1978 | 21 days |
| 1979 | 32 days |
| 1980 | 28 days |
| 1981 | 19 days |
| 1982 | 23 days |
| 1983 | 20 days |
| 1990 | 32 days |
| 1991 | 20 days |
| 1992 | 32 days |
| 1993 | 17 days |
| 1994 | 23 days |
| 1995 | 22 days |
| 1996 | 23 days |
| 1997 | n/a |
| 1998 | 20 days |
| 1999 | 24 days |
| 2000 | 17 days |
| 2001 | 16 days |
| 2002 | 21 days |
| 2003 | 31 days |
| 2004 | 31 days |
| 2005 | 21 days |
| 2006 | 18 days |
| 2007 | 31 days |
| 2008 | 20 days |
| 2009 | 25 days |
| 2010 | 30 days |
| 2011 | 18 days |
| 2012 | 19 days |
| 2013 | 22 days |
| 2014 | 23 days |
| 2015 | 14 days |
| 2016 | 21 days |
| 2017 | 28 days |
| 2018 | 18 days |
| 2019 | 13 days |
| 2020 | 20 days |
| 2021 | 25 days |
| 2022 | 29 days |
| 2023 | 22 days |
| 2024 | 27 days |
| 2025 | 28 days |
| 2026 | 20 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
69 years with a frostAcross 69 years with a frost, the median last spring frost at Vichy Rolla Natl AP falls on 11 April and the median first autumn frost on 25 October, which leaves a median of 198 days between them.
In 1995 to 2025 the median growing season was 193 days. That is 7 days fewer than in 1948 to 1977.
Fitted over all years, the growing season changes by -0.8 days per decade at this station.
| Measure | Median, all years | Earliest period (1948 to 1977) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 11 April | 12 April | 15 April | 3 days later | +0.2 days per decade |
| First autumn frost | 25 October | 27 October | 23 October | 4 days earlier | -0.6 days per decade |
| Growing days | 198 days | 200 days | 193 days | 7 days fewer | -0.8 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
67 years, 1948 to 2025A day with at least 68.6 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 141.9 mm (5.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 68.6 mm (2.7 in) | |
| 5 years | 88.7 mm (3.5 in) | |
| 10 years | 101.8 mm (4.0 in) | |
| 25 years | 118.1 mm (4.6 in) | |
| 50 years | 130.1 mm (5.1 in) | |
| 100 years | 141.9 mm (5.6 in) | Longer than the 67 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 67 years of values from 1948 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: 142.2 mm (5.6 in) in 1972; 129.8 mm (5.1 in) in 2015; 116.1 mm (4.6 in) in 1959.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Vichy Rolla Natl AP, at 1962 and 1997. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1962 ran 0.2 C (0.3 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1997 ran 0.4 C (0.6 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1962 | +0.2 | +0.3 | likely | 5 |
| 1997 | -0.4 | -0.6 | likely | 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
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Vichy Rolla Natl AP had a mean temperature of 13.5 C (56.2 F) and 1,011.1 mm (39.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Fredericksburg Np (United States, 1,249 km away), Annapolis Police Brks (United States, 1,328 km away) and College Park (United States, 1,290 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Fredericksburg Np | United States | 1,249 km (776 mi) | 13.2 C (55.8 F) | 989.3 mm (38.9 in) | 0.56 |
| Annapolis Police Brks | United States | 1,328 km (825 mi) | 13.4 C (56.1 F) | 1,035.8 mm (40.8 in) | 0.58 |
| College Park | United States | 1,290 km (802 mi) | 13.4 C (56.0 F) | 1,040.9 mm (41.0 in) | 0.59 |
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-17).