Norfolk NAS Weather Records (USW00013750)
Record envelope, standing records and threshold days for Norfolk NAS (USW00013750), Virginia, United States, with 82 years of record.
Key Facts for Norfolk NAS
- Norfolk NAS (USW00013750) is a weather station in Virginia, United States at 36.94 latitude and -76.29 longitude, 5 m (17 ft) above sea level.
- The station reports from 1945 to 2026, 82 years of record.
- 1,464 records set at Norfolk NAS still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Norfolk NAS tied a daily record high minimum temperature of 23.9 C (75.0 F) on 12 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Virginia, United States, 36.94 latitude, -76.29 longitude.
- Elevation: 5 m (17 ft).
- Period of record: 1945 to 2026, 82 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
11 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) | -18.3 C (-0.9 F) | 23.3 C (73.9 F) | -7.2 C (19.0 F) |
| Feb | 27.8 C (82.0 F) | -12.2 C (10.0 F) | 19.4 C (66.9 F) | -7.8 C (18.0 F) |
| Mar | 32.2 C (90.0 F) | -7.2 C (19.0 F) | 30.6 C (87.1 F) | -1.1 C (30.0 F) |
| Apr | 34.4 C (93.9 F) | -1.7 C (28.9 F) | 32.8 C (91.0 F) | 5.6 C (42.1 F) |
| May | 37.8 C (100.0 F) | 2.8 C (37.0 F) | 34.4 C (93.9 F) | 8.9 C (48.0 F) |
| Jun | 38.9 C (102.0 F) | 8.3 C (46.9 F) | 36.7 C (98.1 F) | 12.2 C (54.0 F) |
| Jul | 40.6 C (105.1 F) | 14.4 C (57.9 F) | 38.3 C (100.9 F) | 18.3 C (64.9 F) |
| Aug | 38.9 C (102.0 F) | 11.1 C (52.0 F) | 35.0 C (95.0 F) | 18.3 C (64.9 F) |
| Sep | 37.8 C (100.0 F) | 10.0 C (50.0 F) | 33.9 C (93.0 F) | 15.0 C (59.0 F) |
| Oct | 35.6 C (96.1 F) | -1.6 C (29.1 F) | 31.7 C (89.1 F) | 9.4 C (48.9 F) |
| Nov | 29.4 C (84.9 F) | -6.1 C (21.0 F) | n/a | n/a |
| Dec | 27.8 C (82.0 F) | -12.8 C (9.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1945 | 14 |
| 1946 | 10 |
| 1947 | 23 |
| 1948 | 17 |
| 1949 | 10 |
| 1950 | 19 |
| 1951 | 19 |
| 1952 | 8 |
| 1953 | 11 |
| 1954 | 25 |
| 1955 | 13 |
| 1956 | 24 |
| 1957 | 16 |
| 1958 | 18 |
| 1959 | 29 |
| 1960 | 26 |
| 1961 | 16 |
| 1962 | 19 |
| 1963 | 33 |
| 1964 | 34 |
| 1965 | 28 |
| 1966 | 18 |
| 1967 | 35 |
| 1968 | 9 |
| 1969 | 12 |
| 1970 | 16 |
| 1971 | 15 |
| 1972 | 25 |
| 1973 | 19 |
| 1974 | 44 |
| 1975 | 16 |
| 1976 | 27 |
| 1977 | 23 |
| 1978 | 18 |
| 1979 | 8 |
| 1980 | 20 |
| 1981 | 20 |
| 1982 | 12 |
| 1983 | 22 |
| 1984 | 11 |
| 1985 | 25 |
| 1986 | 27 |
| 1987 | 8 |
| 1988 | 12 |
| 1989 | 25 |
| 1990 | 26 |
| 1991 | 17 |
| 1992 | 11 |
| 1993 | 15 |
| 1994 | 18 |
| 1995 | 12 |
| 1996 | 20 |
| 1997 | 15 |
| 1998 | 14 |
| 2001 | 13 |
| 2002 | 16 |
| 2003 | 6 |
| 2004 | 11 |
| 2005 | 10 |
| 2006 | 9 |
| 2007 | 36 |
| 2008 | 27 |
| 2009 | 19 |
| 2010 | 28 |
| 2011 | 15 |
| 2012 | 15 |
| 2013 | 13 |
| 2014 | 20 |
| 2015 | 39 |
| 2016 | 13 |
| 2017 | 19 |
| 2018 | 26 |
| 2019 | 14 |
| 2020 | 17 |
| 2021 | 9 |
| 2022 | 14 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 14 |
| 2026 | 13 |
All-Time Record Progression
14 new records| Date | Kind | Detail |
|---|---|---|
| 1977-01-17 | Record low minimum temperature | Record low minimum temperature -13.9 C (7.0 F) |
| 1979-09-05 | Record daily precipitation | Record daily precipitation 201.2 mm (7.9 in) |
| 1980-03-02 | Record daily snowfall | Record daily snowfall 27.9 cm (11.0 in) |
| 1980-03-03 | Record snow depth | Record snow depth 38.1 cm (15.0 in) |
| 1980-08-01 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 1983-12-25 | Record low maximum temperature | Record low maximum temperature -7.8 C (18.0 F) |
| 1985-01-20 | Record low minimum temperature | Record low minimum temperature -15.6 C (3.9 F) |
| 1985-01-21 | Record low maximum temperature | Record low maximum temperature -10.0 C (14.0 F) |
| 1985-01-21 | Record low minimum temperature | Record low minimum temperature -18.3 C (-0.9 F) |
| 1989-02-18 | Record daily snowfall | Record daily snowfall 33.3 cm (13.1 in) |
| 1993-07-10 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
| 1993-07-29 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 2010-07-25 | Record high maximum temperature | Record high maximum temperature 40.6 C (105.1 F) |
| 2010-09-30 | Record daily precipitation | Record daily precipitation 235.2 mm (9.3 in) |
Wettest Day of Each Month
Sep: 235.2 mm (9.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 83.3 mm (3.3 in) | 4 January 1992 |
| Feb | 115.6 mm (4.6 in) | 4 February 1998 |
| Mar | 92.5 mm (3.6 in) | 2 March 1994 |
| Apr | 135.4 mm (5.3 in) | 20 April 1991 |
| May | 91.4 mm (3.6 in) | 23 May 2005 |
| Jun | 132.3 mm (5.2 in) | 2 June 1963 |
| Jul | 164.8 mm (6.5 in) | 28 July 1973 |
| Aug | 163.3 mm (6.4 in) | 31 August 1964 |
| Sep | 235.2 mm (9.3 in) | 30 September 2010 |
| Oct | 210.3 mm (8.3 in) | 8 October 2016 |
| Nov | 149.6 mm (5.9 in) | 12 November 2020 |
| Dec | 67.1 mm (2.6 in) | 10 December 1987 |
Period of Record Coverage
1945 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1945 | 331 | 91% | Yes |
| 1946 | 359 | 98% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 362 | 99% | 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 | 364 | 99% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 364 | 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 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 304 | 83% | No |
| 1984 | 335 | 92% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 363 | 99% | 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 | 364 | 100% | Yes |
| 2000 | 1 | 0% | No |
| 2001 | 363 | 99% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 275 | 75% | No |
| 2005 | 364 | 100% | Yes |
| 2006 | 171 | 47% | No |
| 2007 | 360 | 99% | Yes |
| 2008 | 363 | 99% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 363 | 99% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 364 | 99% | Yes |
| 2013 | 361 | 99% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 364 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 334 | 92% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 364 | 100% | Yes |
| 2022 | 356 | 98% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 355 | 97% | Yes |
| 2025 | 346 | 95% | Yes |
| 2026 | 268 | 73% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 September 2026 | Norfolk NAS, US | daily high min (Tie, Provisional) | 23.9 C (75.0 F) | tie | 8 years | 2 of 100 (Routine) |
| 25 July 2026 | Norfolk NAS, US | daily low max | 23.3 C (73.9 F) | 1.1 C (2.0 F) | 64 years | 30 of 100 (Routine) |
| 4 July 2026 | Norfolk NAS, US | daily high max | 38.3 C (100.9 F) | 2.2 C (4.0 F) | 28 years | 22 of 100 (Routine) |
| 4 July 2026 | Norfolk NAS, US | daily high min (Tie) | 26.7 C (80.1 F) | tie | 13 years | 3 of 100 (Routine) |
| 10 June 2026 | Norfolk NAS, US | daily rain | 21.6 mm (0.9 in) | 0.5 mm (0.02 in) | 64 years | 20 of 100 (Routine) |
| 31 May 2026 | Norfolk NAS, US | daily low min (Tie) | 10.6 C (51.1 F) | tie | 29 years | 4 of 100 (Routine) |
| 18 May 2026 | Norfolk NAS, US | daily high max (Tie) | 34.4 C (93.9 F) | tie | 11 years | 2 of 100 (Routine) |
| 16 April 2026 | Norfolk NAS, US | daily high min (Tie) | 19.4 C (66.9 F) | tie | 24 years | 3 of 100 (Routine) |
| 15 April 2026 | Norfolk NAS, US | daily high max | 32.8 C (91.0 F) | 1.1 C (2.0 F) | 1 year | 9 of 100 (Routine) |
| 14 April 2026 | Norfolk NAS, US | daily high max (Tie) | 30.6 C (87.1 F) | tie | 80 years | 8 of 100 (Routine) |
| 1 April 2026 | Norfolk NAS, US | daily high max | 29.4 C (84.9 F) | 2.2 C (4.0 F) | 48 years | 25 of 100 (Routine) |
| 11 March 2026 | Norfolk NAS, US | daily high min | 17.8 C (64.0 F) | 3.4 C (6.1 F) | 71 years | 36 of 100 (Notable) |
| 11 March 2026 | Norfolk NAS, US | daily high max | 30.6 C (87.1 F) | 2.8 C (5.0 F) | 36 years | 22 of 100 (Routine) |
| 10 March 2026 | Norfolk NAS, US | daily high max | 27.8 C (82.0 F) | 1.1 C (2.0 F) | 9 years | 11 of 100 (Routine) |
| 9 March 2026 | Norfolk NAS, US | daily high min | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 61 years | 27 of 100 (Routine) |
| 8 March 2026 | Norfolk NAS, US | daily high min (Tie) | 17.2 C (63.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 8 February 2026 | Norfolk NAS, US | daily low max | -1.7 C (28.9 F) | 0.6 C (1.1 F) | 48 years | 22 of 100 (Routine) |
| 8 February 2026 | Norfolk NAS, US | daily low min (Tie) | -7.8 C (18.0 F) | tie | 75 years | 7 of 100 (Routine) |
| 31 January 2026 | Norfolk NAS, US | daily low max | -3.9 C (25.0 F) | 2.8 C (5.0 F) | 78 years | 35 of 100 (Notable) |
| 27 January 2026 | Norfolk NAS, US | daily low min | -7.2 C (19.0 F) | 0.5 C (0.9 F) | 44 years | 22 of 100 (Routine) |
Climate Trend
72 complete years, 1946 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1946 | 16.6 C | +0.32 C |
| 1947 | 15.6 C | -0.66 C |
| 1948 | 15.9 C | -0.30 C |
| 1949 | 16.9 C | +0.70 C |
| 1950 | 15.7 C | -0.55 C |
| 1951 | 16.0 C | -0.20 C |
| 1952 | 16.5 C | +0.26 C |
| 1953 | 17.1 C | +0.88 C |
| 1954 | 16.4 C | +0.18 C |
| 1955 | 16.0 C | -0.22 C |
| 1956 | 16.2 C | +0.00 C |
| 1957 | 16.5 C | +0.23 C |
| 1958 | 15.1 C | -1.14 C |
| 1959 | 17.2 C | +1.00 C |
| 1960 | 15.3 C | -0.93 C |
| 1961 | 15.9 C | -0.30 C |
| 1962 | 14.8 C | -1.42 C |
| 1963 | 14.4 C | -1.85 C |
| 1964 | 15.6 C | -0.63 C |
| 1965 | 15.8 C | -0.40 C |
| 1966 | 14.8 C | -1.48 C |
| 1967 | 14.8 C | -1.39 C |
| 1968 | 15.6 C | -0.68 C |
| 1969 | 15.2 C | -1.02 C |
| 1970 | 15.6 C | -0.64 C |
| 1971 | 16.2 C | -0.04 C |
| 1972 | 16.1 C | -0.16 C |
| 1973 | 16.3 C | +0.03 C |
| 1974 | 15.6 C | -0.65 C |
| 1975 | 16.8 C | +0.56 C |
| 1976 | 15.5 C | -0.75 C |
| 1977 | 15.7 C | -0.51 C |
| 1978 | 14.7 C | -1.49 C |
| 1979 | 15.6 C | -0.61 C |
| 1980 | 15.7 C | -0.54 C |
| 1981 | 15.3 C | -0.94 C |
| 1982 | 15.7 C | -0.52 C |
| 1985 | 16.2 C | -0.06 C |
| 1986 | 16.1 C | -0.12 C |
| 1987 | 15.7 C | -0.53 C |
| 1988 | 15.1 C | -1.14 C |
| 1989 | 15.7 C | -0.50 C |
| 1990 | 17.7 C | +1.49 C |
| 1991 | 17.4 C | +1.17 C |
| 1992 | 16.0 C | -0.25 C |
| 1993 | 16.4 C | +0.15 C |
| 1994 | 16.9 C | +0.71 C |
| 1995 | 16.5 C | +0.27 C |
| 1996 | 15.2 C | -1.03 C |
| 1997 | 15.6 C | -0.60 C |
| 1998 | 16.7 C | +0.51 C |
| 2001 | 16.2 C | -0.04 C |
| 2002 | 16.8 C | +0.56 C |
| 2003 | 16.0 C | -0.28 C |
| 2005 | 16.2 C | -0.04 C |
| 2007 | 17.5 C | +1.29 C |
| 2008 | 17.4 C | +1.17 C |
| 2009 | 17.2 C | +0.99 C |
| 2010 | 17.1 C | +0.90 C |
| 2011 | 17.5 C | +1.30 C |
| 2012 | 17.8 C | +1.54 C |
| 2013 | 16.4 C | +0.12 C |
| 2014 | 16.2 C | -0.02 C |
| 2015 | 17.3 C | +1.02 C |
| 2016 | 16.9 C | +0.62 C |
| 2017 | 17.3 C | +1.08 C |
| 2019 | 17.0 C | +0.78 C |
| 2020 | 17.4 C | +1.21 C |
| 2021 | 16.9 C | +0.66 C |
| 2023 | 17.4 C | +1.19 C |
| 2024 | 17.4 C | +1.21 C |
| 2025 | 16.6 C | +0.38 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: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 72 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 | 0.3 F (0.2 to 0.5) per decade | 1946 to 2025 | 72 | Rise |
| Mean daily maximum | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.6) per decade | 1946 to 2025 | 72 | Rise |
| Mean daily minimum | 0.12 C (0.05 to 0.19) per decade | 0.2 F (0.1 to 0.3) per decade | 1946 to 2025 | 72 | 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) | 40.6 C (105.1 F) | 2010 | 36.7 C (98.1 F) | 81 |
| Coldest night (TNn) | -18.3 C (-0.9 F) | 1985 | -7.8 C (18.0 F) | 80 |
| Wettest day (Rx1day) | 235.2 mm (9.3 in) | 2010 | 70.9 mm (2.8 in) | 81 |
| Wettest five days (Rx5day) | 351.7 mm (13.8 in) | 2010 | 107.7 mm (4.2 in) | 80 |
| Longest dry spell (CDD) | 40 days | 2001 | 19 days | 81 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1945 | 37.2 C (99.0 F) |
| 1946 | 34.4 C (93.9 F) |
| 1947 | 36.1 C (97.0 F) |
| 1948 | 36.7 C (98.1 F) |
| 1949 | 36.7 C (98.1 F) |
| 1950 | 36.1 C (97.0 F) |
| 1951 | 36.7 C (98.1 F) |
| 1952 | 38.3 C (100.9 F) |
| 1953 | 37.2 C (99.0 F) |
| 1954 | 37.8 C (100.0 F) |
| 1955 | 36.1 C (97.0 F) |
| 1956 | 37.2 C (99.0 F) |
| 1957 | 37.2 C (99.0 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 37.8 C (100.0 F) |
| 1960 | 37.2 C (99.0 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 36.1 C (97.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 36.1 C (97.0 F) |
| 1967 | 33.9 C (93.0 F) |
| 1968 | 36.7 C (98.1 F) |
| 1969 | 36.7 C (98.1 F) |
| 1970 | 34.4 C (93.9 F) |
| 1971 | 35.6 C (96.1 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 35.0 C (95.0 F) |
| 1974 | 35.6 C (96.1 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 35.6 C (96.1 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 36.7 C (98.1 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 38.9 C (102.0 F) |
| 1981 | 37.2 C (99.0 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 38.9 C (102.0 F) |
| 1984 | 35.0 C (95.0 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 37.2 C (99.0 F) |
| 1987 | 37.2 C (99.0 F) |
| 1988 | 36.1 C (97.0 F) |
| 1989 | 37.8 C (100.0 F) |
| 1990 | 37.2 C (99.0 F) |
| 1991 | 37.8 C (100.0 F) |
| 1992 | 38.9 C (102.0 F) |
| 1993 | 40.0 C (104.0 F) |
| 1994 | 37.8 C (100.0 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 36.1 C (97.0 F) |
| 1997 | 37.2 C (99.0 F) |
| 1998 | 37.2 C (99.0 F) |
| 2000 | 22.2 C (72.0 F) |
| 2001 | 36.1 C (97.0 F) |
| 2002 | 37.8 C (100.0 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 37.2 C (99.0 F) |
| 2005 | 38.9 C (102.0 F) |
| 2006 | 38.3 C (100.9 F) |
| 2007 | 38.3 C (100.9 F) |
| 2008 | 38.9 C (102.0 F) |
| 2009 | 36.1 C (97.0 F) |
| 2010 | 40.6 C (105.1 F) |
| 2011 | 40.0 C (104.0 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 38.3 C (100.9 F) |
| 2014 | 36.7 C (98.1 F) |
| 2015 | 37.2 C (99.0 F) |
| 2016 | 37.2 C (99.0 F) |
| 2017 | 36.7 C (98.1 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 36.7 C (98.1 F) |
| 2020 | 37.8 C (100.0 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 36.1 C (97.0 F) |
| 2025 | 36.1 C (97.0 F) |
| 2026 | 38.3 C (100.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1945 | -7.2 C (19.0 F) |
| 1946 | -5.0 C (23.0 F) |
| 1947 | -9.4 C (15.1 F) |
| 1948 | -8.3 C (17.1 F) |
| 1949 | -2.8 C (27.0 F) |
| 1950 | -6.1 C (21.0 F) |
| 1951 | -7.8 C (18.0 F) |
| 1952 | -5.6 C (21.9 F) |
| 1953 | -5.0 C (23.0 F) |
| 1954 | -6.1 C (21.0 F) |
| 1955 | -7.8 C (18.0 F) |
| 1956 | -3.9 C (25.0 F) |
| 1957 | -8.3 C (17.1 F) |
| 1958 | -11.1 C (12.0 F) |
| 1959 | -7.2 C (19.0 F) |
| 1960 | -7.2 C (19.0 F) |
| 1961 | -6.1 C (21.0 F) |
| 1962 | -10.0 C (14.0 F) |
| 1963 | -9.4 C (15.1 F) |
| 1964 | -8.3 C (17.1 F) |
| 1965 | -9.4 C (15.1 F) |
| 1966 | -10.6 C (12.9 F) |
| 1967 | -7.8 C (18.0 F) |
| 1968 | -7.2 C (19.0 F) |
| 1969 | -6.1 C (21.0 F) |
| 1970 | -11.7 C (10.9 F) |
| 1971 | -6.7 C (19.9 F) |
| 1972 | -12.2 C (10.0 F) |
| 1973 | -9.4 C (15.1 F) |
| 1974 | -3.9 C (25.0 F) |
| 1975 | -5.6 C (21.9 F) |
| 1976 | -8.9 C (16.0 F) |
| 1977 | -13.9 C (7.0 F) |
| 1978 | -9.4 C (15.1 F) |
| 1979 | -8.9 C (16.0 F) |
| 1980 | -8.9 C (16.0 F) |
| 1981 | -11.1 C (12.0 F) |
| 1982 | -12.8 C (9.0 F) |
| 1983 | -12.8 C (9.0 F) |
| 1984 | -7.8 C (18.0 F) |
| 1985 | -18.3 C (-0.9 F) |
| 1986 | -9.4 C (15.1 F) |
| 1987 | -6.1 C (21.0 F) |
| 1988 | -6.7 C (19.9 F) |
| 1989 | -11.1 C (12.0 F) |
| 1990 | -6.1 C (21.0 F) |
| 1991 | -5.6 C (21.9 F) |
| 1992 | -6.1 C (21.0 F) |
| 1993 | -7.8 C (18.0 F) |
| 1994 | -15.0 C (5.0 F) |
| 1995 | -8.9 C (16.0 F) |
| 1996 | -12.2 C (10.0 F) |
| 1997 | -10.0 C (14.0 F) |
| 1998 | -4.4 C (24.1 F) |
| 2000 | n/a |
| 2001 | -5.0 C (23.0 F) |
| 2002 | -4.4 C (24.1 F) |
| 2003 | -8.3 C (17.1 F) |
| 2004 | -6.7 C (19.9 F) |
| 2005 | -7.8 C (18.0 F) |
| 2006 | -3.8 C (25.2 F) |
| 2007 | -8.8 C (16.2 F) |
| 2008 | -3.8 C (25.2 F) |
| 2009 | -7.1 C (19.2 F) |
| 2010 | -5.5 C (22.1 F) |
| 2011 | -5.5 C (22.1 F) |
| 2012 | -4.9 C (23.2 F) |
| 2013 | -5.5 C (22.1 F) |
| 2014 | -13.8 C (7.2 F) |
| 2015 | -11.6 C (11.1 F) |
| 2016 | -8.2 C (17.2 F) |
| 2017 | -9.3 C (15.3 F) |
| 2018 | -10.5 C (13.1 F) |
| 2019 | -7.1 C (19.2 F) |
| 2020 | -3.8 C (25.2 F) |
| 2021 | -3.2 C (26.2 F) |
| 2022 | -11.0 C (12.2 F) |
| 2023 | -5.5 C (22.1 F) |
| 2024 | -6.0 C (21.2 F) |
| 2025 | -7.2 C (19.0 F) |
| 2026 | -7.8 C (18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1945 | 68.6 mm (2.7 in) |
| 1946 | 56.6 mm (2.2 in) |
| 1947 | 78.0 mm (3.1 in) |
| 1948 | 70.9 mm (2.8 in) |
| 1949 | 54.6 mm (2.1 in) |
| 1950 | 75.7 mm (3.0 in) |
| 1951 | 51.8 mm (2.0 in) |
| 1952 | 62.7 mm (2.5 in) |
| 1953 | 147.3 mm (5.8 in) |
| 1954 | 54.1 mm (2.1 in) |
| 1955 | 79.0 mm (3.1 in) |
| 1956 | 103.6 mm (4.1 in) |
| 1957 | 55.4 mm (2.2 in) |
| 1958 | 84.1 mm (3.3 in) |
| 1959 | 99.3 mm (3.9 in) |
| 1960 | 97.0 mm (3.8 in) |
| 1961 | 74.4 mm (2.9 in) |
| 1962 | 68.8 mm (2.7 in) |
| 1963 | 138.9 mm (5.5 in) |
| 1964 | 163.3 mm (6.4 in) |
| 1965 | 45.7 mm (1.8 in) |
| 1966 | 64.0 mm (2.5 in) |
| 1967 | 64.8 mm (2.6 in) |
| 1968 | 54.9 mm (2.2 in) |
| 1969 | 84.1 mm (3.3 in) |
| 1970 | 38.6 mm (1.5 in) |
| 1971 | 98.8 mm (3.9 in) |
| 1972 | 119.9 mm (4.7 in) |
| 1973 | 164.8 mm (6.5 in) |
| 1974 | 67.8 mm (2.7 in) |
| 1975 | 67.3 mm (2.6 in) |
| 1976 | 39.1 mm (1.5 in) |
| 1977 | 52.3 mm (2.1 in) |
| 1978 | 63.5 mm (2.5 in) |
| 1979 | 201.2 mm (7.9 in) |
| 1980 | 111.3 mm (4.4 in) |
| 1981 | 79.5 mm (3.1 in) |
| 1982 | 70.1 mm (2.8 in) |
| 1983 | 68.1 mm (2.7 in) |
| 1984 | 68.1 mm (2.7 in) |
| 1985 | 72.9 mm (2.9 in) |
| 1986 | 57.2 mm (2.3 in) |
| 1987 | 70.1 mm (2.8 in) |
| 1988 | 68.3 mm (2.7 in) |
| 1989 | 61.5 mm (2.4 in) |
| 1990 | 93.0 mm (3.7 in) |
| 1991 | 135.4 mm (5.3 in) |
| 1992 | 85.9 mm (3.4 in) |
| 1993 | 55.4 mm (2.2 in) |
| 1994 | 92.5 mm (3.6 in) |
| 1995 | 57.7 mm (2.3 in) |
| 1996 | 79.0 mm (3.1 in) |
| 1997 | 53.1 mm (2.1 in) |
| 1998 | 117.3 mm (4.6 in) |
| 2000 | 0.3 mm (0.01 in) |
| 2001 | 70.1 mm (2.8 in) |
| 2002 | 91.4 mm (3.6 in) |
| 2003 | 106.9 mm (4.2 in) |
| 2004 | 90.7 mm (3.6 in) |
| 2005 | 140.2 mm (5.5 in) |
| 2006 | 165.1 mm (6.5 in) |
| 2007 | 45.2 mm (1.8 in) |
| 2008 | 65.8 mm (2.6 in) |
| 2009 | 143.3 mm (5.6 in) |
| 2010 | 235.2 mm (9.3 in) |
| 2011 | 156.2 mm (6.1 in) |
| 2012 | 78.5 mm (3.1 in) |
| 2013 | 62.0 mm (2.4 in) |
| 2014 | 84.6 mm (3.3 in) |
| 2015 | 95.5 mm (3.8 in) |
| 2016 | 210.3 mm (8.3 in) |
| 2017 | 75.2 mm (3.0 in) |
| 2018 | 74.4 mm (2.9 in) |
| 2019 | 52.1 mm (2.1 in) |
| 2020 | 149.6 mm (5.9 in) |
| 2021 | 49.8 mm (2.0 in) |
| 2022 | 67.1 mm (2.6 in) |
| 2023 | 64.5 mm (2.5 in) |
| 2024 | 62.5 mm (2.5 in) |
| 2025 | 56.4 mm (2.2 in) |
| 2026 | 51.3 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1945 | 143.7 mm (5.7 in) |
| 1946 | 80.4 mm (3.2 in) |
| 1947 | 142.3 mm (5.6 in) |
| 1948 | 105.5 mm (4.2 in) |
| 1949 | 106.0 mm (4.2 in) |
| 1950 | 107.7 mm (4.2 in) |
| 1951 | 99.3 mm (3.9 in) |
| 1952 | 101.7 mm (4.0 in) |
| 1953 | 257.1 mm (10.1 in) |
| 1954 | 57.2 mm (2.3 in) |
| 1955 | 111.8 mm (4.4 in) |
| 1956 | 136.6 mm (5.4 in) |
| 1957 | 70.1 mm (2.8 in) |
| 1958 | 110.2 mm (4.3 in) |
| 1959 | 106.7 mm (4.2 in) |
| 1960 | 150.9 mm (5.9 in) |
| 1961 | 81.5 mm (3.2 in) |
| 1962 | 100.4 mm (4.0 in) |
| 1963 | 178.1 mm (7.0 in) |
| 1964 | 256.0 mm (10.1 in) |
| 1965 | 74.7 mm (2.9 in) |
| 1966 | 64.8 mm (2.6 in) |
| 1967 | 76.5 mm (3.0 in) |
| 1968 | 57.6 mm (2.3 in) |
| 1969 | 166.1 mm (6.5 in) |
| 1970 | 51.1 mm (2.0 in) |
| 1971 | 181.6 mm (7.1 in) |
| 1972 | 141.2 mm (5.6 in) |
| 1973 | 165.8 mm (6.5 in) |
| 1974 | 121.4 mm (4.8 in) |
| 1975 | 150.1 mm (5.9 in) |
| 1976 | 68.8 mm (2.7 in) |
| 1977 | 75.7 mm (3.0 in) |
| 1978 | 75.0 mm (3.0 in) |
| 1979 | 230.9 mm (9.1 in) |
| 1980 | 115.1 mm (4.5 in) |
| 1981 | 133.4 mm (5.3 in) |
| 1982 | 92.4 mm (3.6 in) |
| 1983 | 102.6 mm (4.0 in) |
| 1984 | 90.4 mm (3.6 in) |
| 1985 | 131.3 mm (5.2 in) |
| 1986 | 71.4 mm (2.8 in) |
| 1987 | 140.0 mm (5.5 in) |
| 1988 | 89.1 mm (3.5 in) |
| 1989 | 107.7 mm (4.2 in) |
| 1990 | 162.7 mm (6.4 in) |
| 1991 | 140.2 mm (5.5 in) |
| 1992 | 209.9 mm (8.3 in) |
| 1993 | 87.4 mm (3.4 in) |
| 1994 | 115.4 mm (4.5 in) |
| 1995 | 57.7 mm (2.3 in) |
| 1996 | 101.4 mm (4.0 in) |
| 1997 | 84.0 mm (3.3 in) |
| 1998 | 141.6 mm (5.6 in) |
| 2000 | n/a |
| 2001 | 75.0 mm (3.0 in) |
| 2002 | 139.7 mm (5.5 in) |
| 2003 | 126.7 mm (5.0 in) |
| 2004 | 192.3 mm (7.6 in) |
| 2005 | 160.4 mm (6.3 in) |
| 2006 | 181.6 mm (7.1 in) |
| 2007 | 92.2 mm (3.6 in) |
| 2008 | 74.2 mm (2.9 in) |
| 2009 | 212.7 mm (8.4 in) |
| 2010 | 351.7 mm (13.8 in) |
| 2011 | 163.3 mm (6.4 in) |
| 2012 | 130.4 mm (5.1 in) |
| 2013 | 108.8 mm (4.3 in) |
| 2014 | 95.7 mm (3.8 in) |
| 2015 | 171.5 mm (6.8 in) |
| 2016 | 257.0 mm (10.1 in) |
| 2017 | 94.0 mm (3.7 in) |
| 2018 | 152.9 mm (6.0 in) |
| 2019 | 77.2 mm (3.0 in) |
| 2020 | 183.9 mm (7.2 in) |
| 2021 | 89.5 mm (3.5 in) |
| 2022 | 81.1 mm (3.2 in) |
| 2023 | 89.8 mm (3.5 in) |
| 2024 | 106.3 mm (4.2 in) |
| 2025 | 62.8 mm (2.5 in) |
| 2026 | 53.3 mm (2.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1945 | 13 days |
| 1946 | 15 days |
| 1947 | 17 days |
| 1948 | 18 days |
| 1949 | 19 days |
| 1950 | 18 days |
| 1951 | 15 days |
| 1952 | 19 days |
| 1953 | 20 days |
| 1954 | 25 days |
| 1955 | 17 days |
| 1956 | 16 days |
| 1957 | 16 days |
| 1958 | 23 days |
| 1959 | 15 days |
| 1960 | 16 days |
| 1961 | 27 days |
| 1962 | 22 days |
| 1963 | 15 days |
| 1964 | 29 days |
| 1965 | 22 days |
| 1966 | 18 days |
| 1967 | 18 days |
| 1968 | 22 days |
| 1969 | 18 days |
| 1970 | 25 days |
| 1971 | 20 days |
| 1972 | 12 days |
| 1973 | 26 days |
| 1974 | 23 days |
| 1975 | 12 days |
| 1976 | 26 days |
| 1977 | 22 days |
| 1978 | 17 days |
| 1979 | 12 days |
| 1980 | 22 days |
| 1981 | 15 days |
| 1982 | 24 days |
| 1983 | 12 days |
| 1984 | 21 days |
| 1985 | 25 days |
| 1986 | 20 days |
| 1987 | 19 days |
| 1988 | 14 days |
| 1989 | 20 days |
| 1990 | 18 days |
| 1991 | 22 days |
| 1992 | 16 days |
| 1993 | 25 days |
| 1994 | 21 days |
| 1995 | 19 days |
| 1996 | 12 days |
| 1997 | 17 days |
| 1998 | 22 days |
| 2000 | 1 day |
| 2001 | 40 days |
| 2002 | 23 days |
| 2003 | 14 days |
| 2004 | 14 days |
| 2005 | 27 days |
| 2006 | 21 days |
| 2007 | 23 days |
| 2008 | 18 days |
| 2009 | 20 days |
| 2010 | 16 days |
| 2011 | 17 days |
| 2012 | 18 days |
| 2013 | 19 days |
| 2014 | 17 days |
| 2015 | 11 days |
| 2016 | 11 days |
| 2017 | 22 days |
| 2018 | 16 days |
| 2019 | 18 days |
| 2020 | 37 days |
| 2021 | 17 days |
| 2022 | 19 days |
| 2023 | 31 days |
| 2024 | 37 days |
| 2025 | 19 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
71 years with a frostAcross 71 years with a frost, the median last spring frost at Norfolk NAS falls on 16 March and the median first autumn frost on 29 November, which leaves a median of 262 days between them.
In 1989 to 2025 the median growing season was 265 days. That is 7 days more than in 1946 to 1975.
Fitted over all years, the growing season changes by +0.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1946 to 1975) | Recent period (1989 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 16 March | 17 March | 11 March | 6 days earlier | -1.0 days per decade |
| First autumn frost | 29 November | 29 November | 28 November | 1 day earlier | -0.5 days per decade |
| Growing days | 262 days | 258 days | 265 days | 7 days more | +0.6 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
75 years, 1945 to 2024A day with at least 75.1 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 262.2 mm (10.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 75.1 mm (3.0 in) | |
| 5 years | 106.6 mm (4.2 in) | |
| 10 years | 133.3 mm (5.2 in) | |
| 25 years | 175.8 mm (6.9 in) | |
| 50 years | 215.2 mm (8.5 in) | |
| 100 years | 262.2 mm (10.3 in) | Longer than the 75 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, 75 years of values from 1945 to 2024.
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: 235.2 mm (9.3 in) in 2010; 210.3 mm (8.3 in) in 2016; 201.2 mm (7.9 in) in 1979.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Norfolk NAS, at 2016. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2016 ran 0.4 C (0.7 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 2016 | -0.4 | -0.7 | possible | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2009 to 2025 against 1961 to 1990Over 2009 to 2025, Norfolk NAS had a mean temperature of 17.1 C (62.8 F) and 1,094.8 mm (43.1 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Monticello (United States, 784 km away), Mineola 8 ENE (United States, 1,800 km away) and Gilmer 4 WNW (United States, 1,771 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Monticello | United States | 784 km (487 mi) | 17.0 C (62.7 F) | 1,149.2 mm (45.2 in) | 0.65 |
| Mineola 8 ENE | United States | 1,800 km (1,118 mi) | 17.3 C (63.1 F) | 1,162.5 mm (45.8 in) | 0.68 |
| Gilmer 4 WNW | United States | 1,771 km (1,100 mi) | 17.3 C (63.2 F) | 1,160.3 mm (45.7 in) | 0.71 |
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).