Norfolk Karl Stefan Mem AP Weather Records (USW00014941)
Record envelope, standing records and threshold days for Norfolk Karl Stefan Mem AP (USW00014941), Nebraska, United States, with 82 years of record.
Key Facts for Norfolk Karl Stefan Mem AP
- Norfolk Karl Stefan Mem AP (USW00014941) is a weather station in Nebraska, United States at 41.98 latitude and -97.43 longitude, 476 m (1,562 ft) above sea level.
- The station reports from 1945 to 2026, 82 years of record.
- 1,464 records set at Norfolk Karl Stefan Mem AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Norfolk Karl Stefan Mem AP set a daily record high maximum temperature of 32.8 C (91.0 F) on 10 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Nebraska, United States, 41.98 latitude, -97.43 longitude.
- Elevation: 476 m (1,562 ft).
- Period of record: 1945 to 2026, 82 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
16 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 23.3 C (73.9 F) | -32.8 C (-27.0 F) | 17.2 C (63.0 F) | -25.0 C (-13.0 F) |
| Feb | 24.4 C (75.9 F) | -34.9 C (-30.8 F) | 23.9 C (75.0 F) | -18.3 C (-0.9 F) |
| Mar | 35.6 C (96.1 F) | -28.9 C (-20.0 F) | 35.6 C (96.1 F) | -15.6 C (3.9 F) |
| Apr | 35.0 C (95.0 F) | -16.7 C (1.9 F) | 32.2 C (90.0 F) | -5.0 C (23.0 F) |
| May | 39.4 C (102.9 F) | -4.4 C (24.1 F) | 34.4 C (93.9 F) | -2.8 C (27.0 F) |
| Jun | 41.1 C (106.0 F) | 2.8 C (37.0 F) | 35.6 C (96.1 F) | 6.1 C (43.0 F) |
| Jul | 45.0 C (113.0 F) | 5.6 C (42.1 F) | 40.6 C (105.1 F) | 16.1 C (61.0 F) |
| Aug | 41.7 C (107.1 F) | 4.4 C (39.9 F) | 33.9 C (93.0 F) | 10.6 C (51.1 F) |
| Sep | 38.9 C (102.0 F) | -3.3 C (26.1 F) | 35.6 C (96.1 F) | 10.6 C (51.1 F) |
| Oct | 36.7 C (98.1 F) | -11.7 C (10.9 F) | 32.8 C (91.0 F) | 5.0 C (41.0 F) |
| Nov | 28.3 C (82.9 F) | -26.1 C (-15.0 F) | n/a | n/a |
| Dec | 21.7 C (71.1 F) | -34.4 C (-29.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1945 | 2 |
| 1946 | 22 |
| 1947 | 36 |
| 1948 | 19 |
| 1949 | 14 |
| 1950 | 28 |
| 1951 | 19 |
| 1952 | 14 |
| 1953 | 16 |
| 1954 | 28 |
| 1955 | 37 |
| 1956 | 18 |
| 1957 | 10 |
| 1958 | 9 |
| 1959 | 18 |
| 1960 | 14 |
| 1961 | 11 |
| 1962 | 40 |
| 1963 | 17 |
| 1964 | 23 |
| 1965 | 25 |
| 1966 | 23 |
| 1967 | 21 |
| 1968 | 20 |
| 1969 | 21 |
| 1970 | 19 |
| 1971 | 7 |
| 1972 | 19 |
| 1973 | 5 |
| 1974 | 20 |
| 1975 | 16 |
| 1976 | 16 |
| 1977 | 17 |
| 1978 | 15 |
| 1979 | 19 |
| 1980 | 17 |
| 1981 | 18 |
| 1982 | 8 |
| 1983 | 24 |
| 1984 | 12 |
| 1985 | 22 |
| 1986 | 11 |
| 1987 | 16 |
| 1988 | 18 |
| 1989 | 36 |
| 1990 | 27 |
| 1991 | 27 |
| 1992 | 24 |
| 1993 | 13 |
| 1994 | 19 |
| 1995 | 20 |
| 1996 | 15 |
| 1997 | 21 |
| 1998 | 19 |
| 1999 | 18 |
| 2000 | 16 |
| 2001 | 10 |
| 2002 | 24 |
| 2003 | 7 |
| 2004 | 16 |
| 2005 | 17 |
| 2006 | 15 |
| 2007 | 10 |
| 2008 | 4 |
| 2009 | 13 |
| 2010 | 6 |
| 2011 | 12 |
| 2012 | 35 |
| 2013 | 13 |
| 2014 | 18 |
| 2015 | 20 |
| 2016 | 17 |
| 2017 | 16 |
| 2018 | 19 |
| 2019 | 11 |
| 2020 | 24 |
| 2021 | 15 |
| 2022 | 11 |
| 2023 | 16 |
| 2024 | 16 |
| 2025 | 23 |
| 2026 | 17 |
All-Time Record Progression
9 new records| Date | Kind | Detail |
|---|---|---|
| 1978-12-02 | Record daily snowfall | Record daily snowfall 23.4 cm (9.2 in) |
| 1982-01-22 | Record daily snowfall | Record daily snowfall 32.5 cm (12.8 in) |
| 1983-11-27 | Record daily snowfall | Record daily snowfall 36.6 cm (14.4 in) |
| 1983-12-24 | Record low maximum temperature | Record low maximum temperature -23.3 C (-9.9 F) |
| 1984-02-18 | Record daily snowfall | Record daily snowfall 48.3 cm (19.0 in) |
| 1989-12-21 | Record low maximum temperature | Record low maximum temperature -25.6 C (-14.1 F) |
| 1989-12-22 | Record low minimum temperature | Record low minimum temperature -34.4 C (-29.9 F) |
| 1991-06-04 | Record daily precipitation | Record daily precipitation 137.7 mm (5.4 in) |
| 2021-02-16 | Record low minimum temperature | Record low minimum temperature -34.9 C (-30.8 F) |
Wettest Day of Each Month
Jun: 137.7 mm (5.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 33.0 mm (1.3 in) | 22 January 1982 |
| Feb | 59.9 mm (2.4 in) | 18 February 1971 |
| Mar | 69.6 mm (2.7 in) | 14 March 2021 |
| Apr | 53.8 mm (2.1 in) | 24 April 2007 |
| May | 86.6 mm (3.4 in) | 26 May 1973 |
| Jun | 137.7 mm (5.4 in) | 4 June 1991 |
| Jul | 82.8 mm (3.3 in) | 8 July 1993 |
| Aug | 128.5 mm (5.1 in) | 22 August 1995 |
| Sep | 98.6 mm (3.9 in) | 2 September 1970 |
| Oct | 81.0 mm (3.2 in) | 26 October 2023 |
| Nov | 51.6 mm (2.0 in) | 5 November 2000 |
| Dec | 37.1 mm (1.5 in) | 1 December 2018 |
Period of Record Coverage
1945 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1945 | 92 | 25% | No |
| 1946 | 364 | 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 | 364 | 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 | 364 | 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 | 365 | 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 | 365 | 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 |
|---|---|---|---|---|---|---|
| 10 October 2026 | Norfolk Karl Stefan Mem AP, US | daily high max (Provisional) | 32.8 C (91.0 F) | 2.2 C (4.0 F) | 64 years | 30 of 100 (Routine) |
| 10 October 2026 | Norfolk Karl Stefan Mem AP, US | daily high min (Provisional) | 17.2 C (63.0 F) | 0.5 C (0.9 F) | 64 years | 27 of 100 (Routine) |
| 27 September 2026 | Norfolk Karl Stefan Mem AP, US | daily high min (Provisional) | 17.8 C (64.0 F) | 2.2 C (4.0 F) | 69 years | 32 of 100 (Routine) |
| 26 September 2026 | Norfolk Karl Stefan Mem AP, US | daily rain (Provisional) | 10.7 mm (0.4 in) | 3.3 mm (0.13 in) | 44 years | 20 of 100 (Routine) |
| 3 September 2026 | Norfolk Karl Stefan Mem AP, US | daily high min (Provisional) | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 43 years | 21 of 100 (Routine) |
| 23 August 2026 | Norfolk Karl Stefan Mem AP, US | daily low max (Provisional) | 21.1 C (70.0 F) | 0.6 C (1.1 F) | 8 years | 11 of 100 (Routine) |
| 13 August 2026 | Norfolk Karl Stefan Mem AP, US | daily rain | 83.8 mm (3.3 in) | 56.9 mm (2.2 in) | 33 years | 58 of 100 (Notable) |
| 25 July 2026 | Norfolk Karl Stefan Mem AP, US | daily high max | 38.3 C (100.9 F) | 0.5 C (0.9 F) | 13 years | 13 of 100 (Routine) |
| 20 July 2026 | Norfolk Karl Stefan Mem AP, US | daily high max | 40.6 C (105.1 F) | 0.6 C (1.1 F) | 52 years | 24 of 100 (Routine) |
| 10 May 2026 | Norfolk Karl Stefan Mem AP, US | daily low min | -1.1 C (30.0 F) | 0.5 C (0.9 F) | 80 years | 33 of 100 (Routine) |
| 6 May 2026 | Norfolk Karl Stefan Mem AP, US | daily low min | -2.8 C (27.0 F) | 2.2 C (4.0 F) | 36 years | 23 of 100 (Routine) |
| 2 April 2026 | Norfolk Karl Stefan Mem AP, US | daily rain | 37.1 mm (1.5 in) | 13.7 mm (0.5 in) | 41 years | 36 of 100 (Notable) |
| 25 March 2026 | Norfolk Karl Stefan Mem AP, US | daily high max | 28.9 C (84.0 F) | 2.2 C (4.0 F) | 69 years | 30 of 100 (Routine) |
| 21 March 2026 | Norfolk Karl Stefan Mem AP, US | monthly high max | 35.6 C (96.1 F) | 2.3 C (4.1 F) | 11 years | 23 of 100 (Routine) |
| 20 March 2026 | Norfolk Karl Stefan Mem AP, US | daily high max | 29.4 C (84.9 F) | 3.3 C (5.9 F) | 28 years | 19 of 100 (Routine) |
| 19 March 2026 | Norfolk Karl Stefan Mem AP, US | daily high max | 27.8 C (82.0 F) | 1.1 C (2.0 F) | 8 years | 11 of 100 (Routine) |
| 16 March 2026 | Norfolk Karl Stefan Mem AP, US | daily low max | -5.0 C (23.0 F) | 1.1 C (2.0 F) | 65 years | 28 of 100 (Routine) |
| 8 March 2026 | Norfolk Karl Stefan Mem AP, US | daily high max | 23.9 C (75.0 F) | 1.1 C (2.0 F) | 48 years | 23 of 100 (Routine) |
| 17 February 2026 | Norfolk Karl Stefan Mem AP, US | daily high min | 5.0 C (41.0 F) | 1.7 C (3.1 F) | 44 years | 23 of 100 (Routine) |
| 17 February 2026 | Norfolk Karl Stefan Mem AP, US | daily high max (Tie) | 22.2 C (72.0 F) | tie | 44 years | 5 of 100 (Routine) |
Climate Trend
80 complete years, 1946 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1946 | 10.4 C | +0.89 C |
| 1947 | 9.3 C | -0.17 C |
| 1948 | 9.1 C | -0.38 C |
| 1949 | 9.0 C | -0.55 C |
| 1950 | 7.4 C | -2.07 C |
| 1951 | 7.5 C | -2.04 C |
| 1952 | 9.3 C | -0.23 C |
| 1953 | 10.1 C | +0.60 C |
| 1954 | 10.3 C | +0.82 C |
| 1955 | 9.4 C | -0.10 C |
| 1956 | 9.4 C | -0.13 C |
| 1957 | 9.2 C | -0.28 C |
| 1958 | 8.9 C | -0.60 C |
| 1959 | 8.9 C | -0.64 C |
| 1960 | 7.9 C | -1.59 C |
| 1961 | 8.7 C | -0.84 C |
| 1962 | 8.7 C | -0.81 C |
| 1963 | 10.0 C | +0.47 C |
| 1964 | 9.1 C | -0.38 C |
| 1965 | 8.6 C | -0.95 C |
| 1966 | 8.4 C | -1.14 C |
| 1967 | 8.7 C | -0.76 C |
| 1968 | 9.0 C | -0.52 C |
| 1969 | 8.2 C | -1.26 C |
| 1970 | 8.9 C | -0.60 C |
| 1971 | 9.1 C | -0.41 C |
| 1972 | 8.4 C | -1.12 C |
| 1973 | 9.7 C | +0.19 C |
| 1974 | 9.7 C | +0.23 C |
| 1975 | 8.9 C | -0.64 C |
| 1976 | 9.7 C | +0.18 C |
| 1977 | 10.2 C | +0.68 C |
| 1978 | 7.9 C | -1.58 C |
| 1979 | 7.9 C | -1.61 C |
| 1980 | 9.9 C | +0.38 C |
| 1981 | 10.4 C | +0.94 C |
| 1982 | 8.4 C | -1.12 C |
| 1983 | 9.2 C | -0.28 C |
| 1984 | 9.4 C | -0.06 C |
| 1985 | 8.5 C | -1.03 C |
| 1986 | 10.3 C | +0.76 C |
| 1987 | 11.1 C | +1.56 C |
| 1988 | 10.1 C | +0.56 C |
| 1989 | 8.9 C | -0.61 C |
| 1990 | 10.4 C | +0.86 C |
| 1991 | 10.4 C | +0.93 C |
| 1992 | 9.8 C | +0.29 C |
| 1993 | 8.2 C | -1.27 C |
| 1994 | 9.7 C | +0.17 C |
| 1995 | 9.6 C | +0.12 C |
| 1996 | 7.7 C | -1.85 C |
| 1997 | 9.1 C | -0.43 C |
| 1998 | 10.6 C | +1.06 C |
| 1999 | 10.4 C | +0.92 C |
| 2000 | 9.9 C | +0.44 C |
| 2001 | 10.2 C | +0.74 C |
| 2002 | 10.2 C | +0.66 C |
| 2003 | 9.9 C | +0.41 C |
| 2004 | 10.0 C | +0.48 C |
| 2005 | 10.9 C | +1.42 C |
| 2006 | 11.1 C | +1.55 C |
| 2007 | 10.0 C | +0.54 C |
| 2008 | 8.5 C | -0.99 C |
| 2009 | 8.7 C | -0.83 C |
| 2010 | 9.4 C | -0.09 C |
| 2011 | 9.5 C | -0.04 C |
| 2012 | 11.8 C | +2.26 C |
| 2013 | 9.1 C | -0.41 C |
| 2014 | 9.0 C | -0.52 C |
| 2015 | 10.8 C | +1.26 C |
| 2016 | 10.8 C | +1.32 C |
| 2017 | 10.2 C | +0.70 C |
| 2018 | 8.8 C | -0.67 C |
| 2019 | 8.8 C | -0.72 C |
| 2020 | 10.5 C | +1.04 C |
| 2021 | 11.0 C | +1.49 C |
| 2022 | 10.3 C | +0.79 C |
| 2023 | 11.1 C | +1.55 C |
| 2024 | 11.6 C | +2.08 C |
| 2025 | 10.6 C | +1.11 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1946 to 2025. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 80 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1946 to 2025 | 80 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.6) per decade | 1946 to 2025 | 80 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1946 to 2025 | 80 | 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
1945 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.0 C (113.0 F) | 1954 | 37.8 C (100.0 F) | 82 |
| Coldest night (TNn) | -34.9 C (-30.8 F) | 2021 | -27.2 C (-17.0 F) | 82 |
| Wettest day (Rx1day) | 137.7 mm (5.4 in) | 1991 | 59.9 mm (2.4 in) | 82 |
| Wettest five days (Rx5day) | 175.0 mm (6.9 in) | 1974 | 89.8 mm (3.5 in) | 82 |
| Longest dry spell (CDD) | 63 days | 1958 | 30 days | 82 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1945 | 31.1 C (88.0 F) |
| 1946 | 41.1 C (106.0 F) |
| 1947 | 42.8 C (109.0 F) |
| 1948 | 38.3 C (100.9 F) |
| 1949 | 37.8 C (100.0 F) |
| 1950 | 35.6 C (96.1 F) |
| 1951 | 37.2 C (99.0 F) |
| 1952 | 39.4 C (102.9 F) |
| 1953 | 40.6 C (105.1 F) |
| 1954 | 45.0 C (113.0 F) |
| 1955 | 40.6 C (105.1 F) |
| 1956 | 40.6 C (105.1 F) |
| 1957 | 40.6 C (105.1 F) |
| 1958 | 37.8 C (100.0 F) |
| 1959 | 37.2 C (99.0 F) |
| 1960 | 38.3 C (100.9 F) |
| 1961 | 40.0 C (104.0 F) |
| 1962 | 36.7 C (98.1 F) |
| 1963 | 37.8 C (100.0 F) |
| 1964 | 40.0 C (104.0 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 40.6 C (105.1 F) |
| 1967 | 39.4 C (102.9 F) |
| 1968 | 37.2 C (99.0 F) |
| 1969 | 37.8 C (100.0 F) |
| 1970 | 40.0 C (104.0 F) |
| 1971 | 38.3 C (100.9 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 38.3 C (100.9 F) |
| 1974 | 40.0 C (104.0 F) |
| 1975 | 38.9 C (102.0 F) |
| 1976 | 38.3 C (100.9 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 39.4 C (102.9 F) |
| 1979 | 39.4 C (102.9 F) |
| 1980 | 41.1 C (106.0 F) |
| 1981 | 39.4 C (102.9 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 41.7 C (107.1 F) |
| 1984 | 37.8 C (100.0 F) |
| 1985 | 38.9 C (102.0 F) |
| 1986 | 35.6 C (96.1 F) |
| 1987 | 37.8 C (100.0 F) |
| 1988 | 41.1 C (106.0 F) |
| 1989 | 38.3 C (100.9 F) |
| 1990 | 40.0 C (104.0 F) |
| 1991 | 37.8 C (100.0 F) |
| 1992 | 35.0 C (95.0 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 36.7 C (98.1 F) |
| 1995 | 42.2 C (108.0 F) |
| 1996 | 34.4 C (93.9 F) |
| 1997 | 35.6 C (96.1 F) |
| 1998 | 35.6 C (96.1 F) |
| 1999 | 36.1 C (97.0 F) |
| 2000 | 37.2 C (99.0 F) |
| 2001 | 36.7 C (98.1 F) |
| 2002 | 40.0 C (104.0 F) |
| 2003 | 38.9 C (102.0 F) |
| 2004 | 36.1 C (97.0 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 40.6 C (105.1 F) |
| 2007 | 36.1 C (97.0 F) |
| 2008 | 37.2 C (99.0 F) |
| 2009 | 35.0 C (95.0 F) |
| 2010 | 35.6 C (96.1 F) |
| 2011 | 37.2 C (99.0 F) |
| 2012 | 40.6 C (105.1 F) |
| 2013 | 39.4 C (102.9 F) |
| 2014 | 34.4 C (93.9 F) |
| 2015 | 36.7 C (98.1 F) |
| 2016 | 35.0 C (95.0 F) |
| 2017 | 36.7 C (98.1 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 35.6 C (96.1 F) |
| 2020 | 37.2 C (99.0 F) |
| 2021 | 37.8 C (100.0 F) |
| 2022 | 38.9 C (102.0 F) |
| 2023 | 38.9 C (102.0 F) |
| 2024 | 37.8 C (100.0 F) |
| 2025 | 37.8 C (100.0 F) |
| 2026 | 40.6 C (105.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1945 | -22.8 C (-9.0 F) |
| 1946 | -27.2 C (-17.0 F) |
| 1947 | -27.2 C (-17.0 F) |
| 1948 | -32.2 C (-26.0 F) |
| 1949 | -27.2 C (-17.0 F) |
| 1950 | -31.1 C (-24.0 F) |
| 1951 | -27.2 C (-17.0 F) |
| 1952 | -21.7 C (-7.1 F) |
| 1953 | -28.3 C (-18.9 F) |
| 1954 | -27.2 C (-17.0 F) |
| 1955 | -25.6 C (-14.1 F) |
| 1956 | -27.2 C (-17.0 F) |
| 1957 | -27.2 C (-17.0 F) |
| 1958 | -27.2 C (-17.0 F) |
| 1959 | -28.3 C (-18.9 F) |
| 1960 | -31.1 C (-24.0 F) |
| 1961 | -28.3 C (-18.9 F) |
| 1962 | -32.2 C (-26.0 F) |
| 1963 | -30.6 C (-23.1 F) |
| 1964 | -30.6 C (-23.1 F) |
| 1965 | -27.2 C (-17.0 F) |
| 1966 | -32.2 C (-26.0 F) |
| 1967 | -30.0 C (-22.0 F) |
| 1968 | -31.7 C (-25.1 F) |
| 1969 | -29.4 C (-20.9 F) |
| 1970 | -31.1 C (-24.0 F) |
| 1971 | -26.1 C (-15.0 F) |
| 1972 | -30.0 C (-22.0 F) |
| 1973 | -26.1 C (-15.0 F) |
| 1974 | -32.8 C (-27.0 F) |
| 1975 | -30.6 C (-23.1 F) |
| 1976 | -26.1 C (-15.0 F) |
| 1977 | -28.9 C (-20.0 F) |
| 1978 | -26.7 C (-16.1 F) |
| 1979 | -28.9 C (-20.0 F) |
| 1980 | -25.6 C (-14.1 F) |
| 1981 | -32.2 C (-26.0 F) |
| 1982 | -31.1 C (-24.0 F) |
| 1983 | -30.0 C (-22.0 F) |
| 1984 | -27.8 C (-18.0 F) |
| 1985 | -27.2 C (-17.0 F) |
| 1986 | -25.0 C (-13.0 F) |
| 1987 | -20.6 C (-5.1 F) |
| 1988 | -28.9 C (-20.0 F) |
| 1989 | -34.4 C (-29.9 F) |
| 1990 | -26.7 C (-16.1 F) |
| 1991 | -25.0 C (-13.0 F) |
| 1992 | -21.7 C (-7.1 F) |
| 1993 | -26.1 C (-15.0 F) |
| 1994 | -28.9 C (-20.0 F) |
| 1995 | -24.4 C (-11.9 F) |
| 1996 | -30.6 C (-23.1 F) |
| 1997 | -25.0 C (-13.0 F) |
| 1998 | -25.6 C (-14.1 F) |
| 1999 | -24.4 C (-11.9 F) |
| 2000 | -23.3 C (-9.9 F) |
| 2001 | -26.1 C (-15.0 F) |
| 2002 | -21.7 C (-7.1 F) |
| 2003 | -26.7 C (-16.1 F) |
| 2004 | -23.9 C (-11.0 F) |
| 2005 | -25.0 C (-13.0 F) |
| 2006 | -23.3 C (-9.9 F) |
| 2007 | -28.9 C (-20.0 F) |
| 2008 | -27.8 C (-18.0 F) |
| 2009 | -25.6 C (-14.1 F) |
| 2010 | -28.3 C (-18.9 F) |
| 2011 | -26.7 C (-16.1 F) |
| 2012 | -20.0 C (-4.0 F) |
| 2013 | -22.7 C (-8.9 F) |
| 2014 | -25.5 C (-13.9 F) |
| 2015 | -25.5 C (-13.9 F) |
| 2016 | -31.0 C (-23.8 F) |
| 2017 | -29.3 C (-20.7 F) |
| 2018 | -32.1 C (-25.8 F) |
| 2019 | -25.5 C (-13.9 F) |
| 2020 | -23.2 C (-9.8 F) |
| 2021 | -34.9 C (-30.8 F) |
| 2022 | -27.7 C (-17.9 F) |
| 2023 | -22.1 C (-7.8 F) |
| 2024 | -29.3 C (-20.7 F) |
| 2025 | -28.2 C (-18.8 F) |
| 2026 | -25.0 C (-13.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1945 | 13.5 mm (0.5 in) |
| 1946 | 32.5 mm (1.3 in) |
| 1947 | 68.6 mm (2.7 in) |
| 1948 | 78.0 mm (3.1 in) |
| 1949 | 86.1 mm (3.4 in) |
| 1950 | 68.3 mm (2.7 in) |
| 1951 | 53.6 mm (2.1 in) |
| 1952 | 55.1 mm (2.2 in) |
| 1953 | 48.5 mm (1.9 in) |
| 1954 | 65.5 mm (2.6 in) |
| 1955 | 39.6 mm (1.6 in) |
| 1956 | 36.6 mm (1.4 in) |
| 1957 | 53.1 mm (2.1 in) |
| 1958 | 62.0 mm (2.4 in) |
| 1959 | 44.7 mm (1.8 in) |
| 1960 | 58.9 mm (2.3 in) |
| 1961 | 72.4 mm (2.9 in) |
| 1962 | 29.7 mm (1.2 in) |
| 1963 | 32.5 mm (1.3 in) |
| 1964 | 60.7 mm (2.4 in) |
| 1965 | 64.8 mm (2.6 in) |
| 1966 | 65.0 mm (2.6 in) |
| 1967 | 64.5 mm (2.5 in) |
| 1968 | 53.8 mm (2.1 in) |
| 1969 | 102.4 mm (4.0 in) |
| 1970 | 98.6 mm (3.9 in) |
| 1971 | 59.9 mm (2.4 in) |
| 1972 | 55.4 mm (2.2 in) |
| 1973 | 86.6 mm (3.4 in) |
| 1974 | 136.9 mm (5.4 in) |
| 1975 | 48.5 mm (1.9 in) |
| 1976 | 50.5 mm (2.0 in) |
| 1977 | 66.3 mm (2.6 in) |
| 1978 | 64.3 mm (2.5 in) |
| 1979 | 48.3 mm (1.9 in) |
| 1980 | 32.5 mm (1.3 in) |
| 1981 | 67.1 mm (2.6 in) |
| 1982 | 58.2 mm (2.3 in) |
| 1983 | 69.1 mm (2.7 in) |
| 1984 | 42.4 mm (1.7 in) |
| 1985 | 64.8 mm (2.6 in) |
| 1986 | 62.2 mm (2.4 in) |
| 1987 | 48.0 mm (1.9 in) |
| 1988 | 56.9 mm (2.2 in) |
| 1989 | 50.0 mm (2.0 in) |
| 1990 | 94.5 mm (3.7 in) |
| 1991 | 137.7 mm (5.4 in) |
| 1992 | 53.6 mm (2.1 in) |
| 1993 | 82.8 mm (3.3 in) |
| 1994 | 84.1 mm (3.3 in) |
| 1995 | 128.5 mm (5.1 in) |
| 1996 | 60.7 mm (2.4 in) |
| 1997 | 60.7 mm (2.4 in) |
| 1998 | 63.0 mm (2.5 in) |
| 1999 | 53.6 mm (2.1 in) |
| 2000 | 52.1 mm (2.1 in) |
| 2001 | 52.1 mm (2.1 in) |
| 2002 | 63.2 mm (2.5 in) |
| 2003 | 46.0 mm (1.8 in) |
| 2004 | 62.0 mm (2.4 in) |
| 2005 | 50.3 mm (2.0 in) |
| 2006 | 59.9 mm (2.4 in) |
| 2007 | 80.0 mm (3.1 in) |
| 2008 | 57.2 mm (2.3 in) |
| 2009 | 47.5 mm (1.9 in) |
| 2010 | 83.8 mm (3.3 in) |
| 2011 | 32.8 mm (1.3 in) |
| 2012 | 52.1 mm (2.1 in) |
| 2013 | 59.4 mm (2.3 in) |
| 2014 | 65.0 mm (2.6 in) |
| 2015 | 48.8 mm (1.9 in) |
| 2016 | 54.6 mm (2.1 in) |
| 2017 | 46.5 mm (1.8 in) |
| 2018 | 67.6 mm (2.7 in) |
| 2019 | 47.0 mm (1.9 in) |
| 2020 | 36.1 mm (1.4 in) |
| 2021 | 69.6 mm (2.7 in) |
| 2022 | 23.6 mm (0.9 in) |
| 2023 | 81.0 mm (3.2 in) |
| 2024 | 76.7 mm (3.0 in) |
| 2025 | 62.2 mm (2.4 in) |
| 2026 | 83.8 mm (3.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1945 | 14.8 mm (0.6 in) |
| 1946 | 74.1 mm (2.9 in) |
| 1947 | 103.1 mm (4.1 in) |
| 1948 | 90.5 mm (3.6 in) |
| 1949 | 105.1 mm (4.1 in) |
| 1950 | 94.3 mm (3.7 in) |
| 1951 | 82.8 mm (3.3 in) |
| 1952 | 98.3 mm (3.9 in) |
| 1953 | 59.2 mm (2.3 in) |
| 1954 | 74.0 mm (2.9 in) |
| 1955 | 54.8 mm (2.2 in) |
| 1956 | 47.1 mm (1.9 in) |
| 1957 | 80.3 mm (3.2 in) |
| 1958 | 99.6 mm (3.9 in) |
| 1959 | 81.8 mm (3.2 in) |
| 1960 | 80.0 mm (3.1 in) |
| 1961 | 112.6 mm (4.4 in) |
| 1962 | 57.4 mm (2.3 in) |
| 1963 | 53.8 mm (2.1 in) |
| 1964 | 103.9 mm (4.1 in) |
| 1965 | 104.4 mm (4.1 in) |
| 1966 | 82.0 mm (3.2 in) |
| 1967 | 130.5 mm (5.1 in) |
| 1968 | 113.7 mm (4.5 in) |
| 1969 | 174.1 mm (6.9 in) |
| 1970 | 99.4 mm (3.9 in) |
| 1971 | 87.1 mm (3.4 in) |
| 1972 | 97.0 mm (3.8 in) |
| 1973 | 126.2 mm (5.0 in) |
| 1974 | 175.0 mm (6.9 in) |
| 1975 | 105.2 mm (4.1 in) |
| 1976 | 67.6 mm (2.7 in) |
| 1977 | 90.3 mm (3.6 in) |
| 1978 | 87.1 mm (3.4 in) |
| 1979 | 82.8 mm (3.3 in) |
| 1980 | 54.0 mm (2.1 in) |
| 1981 | 84.9 mm (3.3 in) |
| 1982 | 94.0 mm (3.7 in) |
| 1983 | 117.4 mm (4.6 in) |
| 1984 | 63.2 mm (2.5 in) |
| 1985 | 91.9 mm (3.6 in) |
| 1986 | 71.4 mm (2.8 in) |
| 1987 | 104.2 mm (4.1 in) |
| 1988 | 87.8 mm (3.5 in) |
| 1989 | 89.2 mm (3.5 in) |
| 1990 | 165.9 mm (6.5 in) |
| 1991 | 153.5 mm (6.0 in) |
| 1992 | 76.7 mm (3.0 in) |
| 1993 | 95.3 mm (3.8 in) |
| 1994 | 110.0 mm (4.3 in) |
| 1995 | 143.0 mm (5.6 in) |
| 1996 | 87.1 mm (3.4 in) |
| 1997 | 70.3 mm (2.8 in) |
| 1998 | 123.7 mm (4.9 in) |
| 1999 | 70.9 mm (2.8 in) |
| 2000 | 75.3 mm (3.0 in) |
| 2001 | 104.2 mm (4.1 in) |
| 2002 | 77.7 mm (3.1 in) |
| 2003 | 92.9 mm (3.7 in) |
| 2004 | 88.2 mm (3.5 in) |
| 2005 | 95.7 mm (3.8 in) |
| 2006 | 71.4 mm (2.8 in) |
| 2007 | 129.0 mm (5.1 in) |
| 2008 | 113.2 mm (4.5 in) |
| 2009 | 91.5 mm (3.6 in) |
| 2010 | 148.3 mm (5.8 in) |
| 2011 | 48.8 mm (1.9 in) |
| 2012 | 96.8 mm (3.8 in) |
| 2013 | 67.6 mm (2.7 in) |
| 2014 | 96.2 mm (3.8 in) |
| 2015 | 69.9 mm (2.8 in) |
| 2016 | 77.9 mm (3.1 in) |
| 2017 | 79.7 mm (3.1 in) |
| 2018 | 107.1 mm (4.2 in) |
| 2019 | 57.7 mm (2.3 in) |
| 2020 | 64.1 mm (2.5 in) |
| 2021 | 89.1 mm (3.5 in) |
| 2022 | 45.3 mm (1.8 in) |
| 2023 | 85.3 mm (3.4 in) |
| 2024 | 105.9 mm (4.2 in) |
| 2025 | 125.6 mm (4.9 in) |
| 2026 | 110.5 mm (4.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1945 | 38 days |
| 1946 | 42 days |
| 1947 | 28 days |
| 1948 | 31 days |
| 1949 | 44 days |
| 1950 | 30 days |
| 1951 | 19 days |
| 1952 | 57 days |
| 1953 | 42 days |
| 1954 | 30 days |
| 1955 | 28 days |
| 1956 | 22 days |
| 1957 | 42 days |
| 1958 | 63 days |
| 1959 | 44 days |
| 1960 | 28 days |
| 1961 | 30 days |
| 1962 | 34 days |
| 1963 | 26 days |
| 1964 | 27 days |
| 1965 | 23 days |
| 1966 | 42 days |
| 1967 | 44 days |
| 1968 | 43 days |
| 1969 | 26 days |
| 1970 | 26 days |
| 1971 | 45 days |
| 1972 | 30 days |
| 1973 | 23 days |
| 1974 | 34 days |
| 1975 | 20 days |
| 1976 | 42 days |
| 1977 | 29 days |
| 1978 | 24 days |
| 1979 | 35 days |
| 1980 | 38 days |
| 1981 | 30 days |
| 1982 | 19 days |
| 1983 | 17 days |
| 1984 | 33 days |
| 1985 | 26 days |
| 1986 | 25 days |
| 1987 | 25 days |
| 1988 | 34 days |
| 1989 | 31 days |
| 1990 | 20 days |
| 1991 | 26 days |
| 1992 | 30 days |
| 1993 | 28 days |
| 1994 | 45 days |
| 1995 | 28 days |
| 1996 | 45 days |
| 1997 | 33 days |
| 1998 | 49 days |
| 1999 | 45 days |
| 2000 | 29 days |
| 2001 | 41 days |
| 2002 | 35 days |
| 2003 | 28 days |
| 2004 | 26 days |
| 2005 | 35 days |
| 2006 | 36 days |
| 2007 | 43 days |
| 2008 | 26 days |
| 2009 | 23 days |
| 2010 | 31 days |
| 2011 | 30 days |
| 2012 | 38 days |
| 2013 | 23 days |
| 2014 | 33 days |
| 2015 | 26 days |
| 2016 | 31 days |
| 2017 | 33 days |
| 2018 | 24 days |
| 2019 | 25 days |
| 2020 | 28 days |
| 2021 | 29 days |
| 2022 | 40 days |
| 2023 | 21 days |
| 2024 | 61 days |
| 2025 | 23 days |
| 2026 | 22 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
80 years with a frostAcross 80 years with a frost, the median last spring frost at Norfolk Karl Stefan Mem AP falls on 30 April and the median first autumn frost on 5 October, which leaves a median of 158 days between them.
In 1996 to 2025 the median growing season was 161 days. That is 5 days more than in 1946 to 1975.
Fitted over all years, the growing season changes by +1.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1946 to 1975) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 30 April | 30 April | 27 April | 3 days earlier | -0.5 days per decade |
| First autumn frost | 5 October | 4 October | 7 October | 3 days later | +0.5 days per decade |
| Growing days | 158 days | 156 days | 161 days | 5 days more | +1.0 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
80 years, 1946 to 2025A day with at least 58.2 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 129.4 mm (5.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 58.2 mm (2.3 in) | |
| 5 years | 76.1 mm (3.0 in) | |
| 10 years | 88.4 mm (3.5 in) | |
| 25 years | 104.5 mm (4.1 in) | |
| 50 years | 116.8 mm (4.6 in) | |
| 100 years | 129.4 mm (5.1 in) | Longer than the 80 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, 80 years of values from 1946 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: 137.7 mm (5.4 in) in 1991; 136.9 mm (5.4 in) in 1974; 128.5 mm (5.1 in) in 1995.
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, Norfolk Karl Stefan Mem AP had a mean temperature of 10.3 C (50.5 F) and 642.5 mm (25.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Aurora (United States, 133 km away), Lovewell Dam (United States, 237 km away) and Grand Is Cntrl NE Rgnl AP (United States, 135 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Aurora | United States | 133 km (83 mi) | 10.4 C (50.8 F) | 699.6 mm (27.5 in) | 0.81 |
| Lovewell Dam | United States | 237 km (147 mi) | 10.6 C (51.1 F) | 705.4 mm (27.8 in) | 0.85 |
| Grand Is Cntrl NE Rgnl AP | United States | 135 km (84 mi) | 10.1 C (50.1 F) | 633.5 mm (24.9 in) | 0.87 |
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).