Norfolk 2 SW Weather Records (USC00065445)
Record envelope, standing records and threshold days for Norfolk 2 SW (USC00065445), Connecticut, United States, with 143 years of record.
Key Facts for Norfolk 2 SW
- Norfolk 2 SW (USC00065445) is a weather station in Connecticut, United States at 41.97 latitude and -73.22 longitude, 408 m (1,340 ft) above sea level.
- The station reports from 1884 to 2026, 143 years of record.
- 1,464 records set at Norfolk 2 SW still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Norfolk 2 SW set a daily record precipitation of 50.0 mm (2.0 in) on 12 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Connecticut, United States, 41.97 latitude, -73.22 longitude.
- Elevation: 408 m (1,340 ft).
- Period of record: 1884 to 2026, 143 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
7 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 16.7 C (62.1 F) | -30.0 C (-22.0 F) | 6.7 C (44.1 F) | -21.1 C (-6.0 F) |
| Feb | 21.1 C (70.0 F) | -31.7 C (-25.1 F) | 4.4 C (39.9 F) | -23.3 C (-9.9 F) |
| Mar | 27.2 C (81.0 F) | -23.9 C (-11.0 F) | 21.7 C (71.1 F) | -16.1 C (3.0 F) |
| Apr | 31.7 C (89.1 F) | -14.4 C (6.1 F) | 27.8 C (82.0 F) | -6.7 C (19.9 F) |
| May | 32.2 C (90.0 F) | -4.4 C (24.1 F) | 32.2 C (90.0 F) | 0.0 C (32.0 F) |
| Jun | 33.9 C (93.0 F) | 0.0 C (32.0 F) | 30.6 C (87.1 F) | 5.0 C (41.0 F) |
| Jul | 34.4 C (93.9 F) | 5.0 C (41.0 F) | 34.4 C (93.9 F) | 10.0 C (50.0 F) |
| Aug | 33.9 C (93.0 F) | 1.7 C (35.1 F) | 30.6 C (87.1 F) | 9.4 C (48.9 F) |
| Sep | 33.9 C (93.0 F) | -3.3 C (26.1 F) | 26.7 C (80.1 F) | 5.6 C (42.1 F) |
| Oct | 27.2 C (81.0 F) | -8.3 C (17.1 F) | 27.2 C (81.0 F) | 0.6 C (33.1 F) |
| Nov | 24.4 C (75.9 F) | -16.1 C (3.0 F) | n/a | n/a |
| Dec | 19.4 C (66.9 F) | -30.6 C (-23.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1884 | 5 |
| 1885 | 37 |
| 1886 | 22 |
| 1887 | 3 |
| 1942 | 8 |
| 1943 | 23 |
| 1944 | 16 |
| 1945 | 20 |
| 1946 | 14 |
| 1947 | 21 |
| 1948 | 17 |
| 1949 | 24 |
| 1950 | 25 |
| 1951 | 20 |
| 1952 | 7 |
| 1953 | 23 |
| 1954 | 24 |
| 1955 | 12 |
| 1956 | 31 |
| 1957 | 20 |
| 1958 | 13 |
| 1959 | 24 |
| 1960 | 10 |
| 1961 | 14 |
| 1962 | 20 |
| 1963 | 23 |
| 1964 | 22 |
| 1965 | 17 |
| 1966 | 19 |
| 1967 | 20 |
| 1968 | 18 |
| 1969 | 9 |
| 1970 | 10 |
| 1971 | 13 |
| 1972 | 11 |
| 1973 | 11 |
| 1974 | 23 |
| 1975 | 13 |
| 1976 | 28 |
| 1977 | 13 |
| 1978 | 15 |
| 1979 | 36 |
| 1980 | 12 |
| 1981 | 15 |
| 1982 | 19 |
| 1983 | 7 |
| 1984 | 17 |
| 1985 | 11 |
| 1986 | 16 |
| 1987 | 15 |
| 1988 | 19 |
| 1989 | 21 |
| 1990 | 21 |
| 1991 | 20 |
| 1992 | 10 |
| 1993 | 10 |
| 1994 | 8 |
| 1995 | 13 |
| 1996 | 8 |
| 1997 | 5 |
| 1998 | 13 |
| 1999 | 11 |
| 2000 | 18 |
| 2001 | 5 |
| 2002 | 24 |
| 2003 | 9 |
| 2004 | 7 |
| 2005 | 22 |
| 2006 | 12 |
| 2007 | 18 |
| 2008 | 12 |
| 2009 | 15 |
| 2010 | 19 |
| 2011 | 12 |
| 2012 | 19 |
| 2013 | 14 |
| 2014 | 12 |
| 2015 | 24 |
| 2016 | 15 |
| 2017 | 25 |
| 2018 | 22 |
| 2019 | 10 |
| 2020 | 22 |
| 2021 | 18 |
| 2022 | 23 |
| 2023 | 17 |
| 2024 | 17 |
| 2025 | 18 |
| 2026 | 10 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1980-12-26 | Record low maximum temperature | Record low maximum temperature -22.8 C (-9.0 F) |
| 1988-08-12 | Record high minimum temperature | Record high minimum temperature 22.8 C (73.0 F) |
| 2006-08-02 | Record high minimum temperature | Record high minimum temperature 23.9 C (75.0 F) |
| 2026-07-03 | Record high maximum temperature | Record high maximum temperature 34.4 C (93.9 F) |
Wettest Day of Each Month
Aug: 271.0 mm (10.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 89.7 mm (3.5 in) | 1 January 1949 |
| Feb | 68.1 mm (2.7 in) | 16 February 1885 |
| Mar | 95.3 mm (3.8 in) | 7 March 2011 |
| Apr | 104.6 mm (4.1 in) | 5 April 1987 |
| May | 71.6 mm (2.8 in) | 20 May 1999 |
| Jun | 124.5 mm (4.9 in) | 6 June 1986 |
| Jul | 168.4 mm (6.6 in) | 10 July 2023 |
| Aug | 271.0 mm (10.7 in) | 19 August 1955 |
| Sep | 147.3 mm (5.8 in) | 17 September 1999 |
| Oct | 165.6 mm (6.5 in) | 9 October 2005 |
| Nov | 126.0 mm (5.0 in) | 26 November 1950 |
| Dec | 145.8 mm (5.7 in) | 31 December 1948 |
Period of Record Coverage
1884 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1884 | 46 | 13% | No |
| 1885 | 363 | 99% | Yes |
| 1886 | 364 | 100% | Yes |
| 1887 | 58 | 16% | No |
| 1942 | 110 | 30% | No |
| 1943 | 343 | 94% | Yes |
| 1944 | 322 | 88% | No |
| 1945 | 321 | 88% | No |
| 1946 | 329 | 90% | Yes |
| 1947 | 329 | 90% | Yes |
| 1948 | 345 | 94% | Yes |
| 1949 | 358 | 98% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 358 | 98% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 362 | 99% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 362 | 99% | Yes |
| 1971 | 364 | 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 | 334 | 92% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 363 | 99% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 361 | 99% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 335 | 92% | Yes |
| 2001 | 182 | 50% | No |
| 2002 | 318 | 87% | No |
| 2003 | 342 | 94% | Yes |
| 2004 | 365 | 100% | Yes |
| 2005 | 364 | 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 |
|---|---|---|---|---|---|---|
| 12 October 2026 | Norfolk 2 SW, US | daily rain (Provisional) | 50.0 mm (2.0 in) | 1.7 mm (0.07 in) | 20 years | 17 of 100 (Routine) |
| 3 October 2026 | Norfolk 2 SW, US | monthly high max (Tie, Provisional) | 27.2 C (81.0 F) | tie | 40 years | 8 of 100 (Routine) |
| 2 October 2026 | Norfolk 2 SW, US | daily high min (Provisional) | 15.6 C (60.1 F) | 0.6 C (1.1 F) | 72 years | 32 of 100 (Routine) |
| 4 July 2026 | Norfolk 2 SW, US | daily high max (Tie) | 32.8 C (91.0 F) | tie | 60 years | 7 of 100 (Routine) |
| 3 July 2026 | Norfolk 2 SW, US | all-time high max | 34.4 C (93.9 F) | 0.5 C (0.9 F) | 81 years | 55 of 100 (Notable) |
| 3 July 2026 | Norfolk 2 SW, US | daily high min | 21.1 C (70.0 F) | 0.5 C (0.9 F) | 24 years | 18 of 100 (Routine) |
| 11 June 2026 | Norfolk 2 SW, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 41 years | 5 of 100 (Routine) |
| 20 May 2026 | Norfolk 2 SW, US | monthly high min | 21.1 C (70.0 F) | 1.7 C (3.1 F) | 13 years | 27 of 100 (Routine) |
| 20 May 2026 | Norfolk 2 SW, US | monthly high max | 32.2 C (90.0 F) | 0.5 C (0.9 F) | 13 years | 24 of 100 (Routine) |
| 19 May 2026 | Norfolk 2 SW, US | monthly high min (Tie) | 19.4 C (66.9 F) | tie | 13 years | 6 of 100 (Routine) |
| 17 April 2026 | Norfolk 2 SW, US | daily high min (Tie) | 13.3 C (55.9 F) | tie | 24 years | 4 of 100 (Routine) |
| 16 April 2026 | Norfolk 2 SW, US | daily high min | 14.4 C (57.9 F) | 1.6 C (2.9 F) | 3 years | 13 of 100 (Routine) |
| 16 April 2026 | Norfolk 2 SW, US | daily high max (Tie) | 27.2 C (81.0 F) | tie | 23 years | 4 of 100 (Routine) |
| 1 April 2026 | Norfolk 2 SW, US | daily high min | 12.2 C (54.0 F) | 0.5 C (0.9 F) | 28 years | 19 of 100 (Routine) |
| 12 March 2026 | Norfolk 2 SW, US | daily high max | 20.0 C (68.0 F) | 1.1 C (2.0 F) | 48 years | 25 of 100 (Routine) |
| 11 March 2026 | Norfolk 2 SW, US | daily high max | 21.7 C (71.1 F) | 1.1 C (2.0 F) | 9 years | 13 of 100 (Routine) |
| 23 February 2026 | Norfolk 2 SW, US | daily snowfall | 22.1 cm (8.7 in) | 5.1 cm (2.0 in) | 18 years | 22 of 100 (Routine) |
| 9 February 2026 | Norfolk 2 SW, US | daily low max (Tie) | -16.1 C (3.0 F) | tie | 63 years | 7 of 100 (Routine) |
| 8 February 2026 | Norfolk 2 SW, US | daily low max | -13.9 C (7.0 F) | 0.6 C (1.1 F) | 59 years | 28 of 100 (Routine) |
| 26 January 2026 | Norfolk 2 SW, US | daily snowfall | 34.3 cm (13.5 in) | 8.9 cm (3.5 in) | 38 years | 36 of 100 (Notable) |
Climate Trend
81 complete years, 1885 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1885 | 5.7 C | -1.60 C |
| 1886 | 6.9 C | -0.39 C |
| 1943 | 6.6 C | -0.70 C |
| 1944 | 7.2 C | -0.05 C |
| 1945 | 7.5 C | +0.19 C |
| 1946 | 7.8 C | +0.47 C |
| 1947 | 7.1 C | -0.20 C |
| 1948 | 7.0 C | -0.31 C |
| 1949 | 8.4 C | +1.08 C |
| 1950 | 6.6 C | -0.64 C |
| 1951 | 7.3 C | +0.02 C |
| 1952 | 7.4 C | +0.13 C |
| 1953 | 8.2 C | +0.87 C |
| 1954 | 7.0 C | -0.25 C |
| 1955 | 7.1 C | -0.21 C |
| 1956 | 6.4 C | -0.87 C |
| 1957 | 7.5 C | +0.25 C |
| 1958 | 5.9 C | -1.35 C |
| 1959 | 7.4 C | +0.09 C |
| 1960 | 6.6 C | -0.73 C |
| 1961 | 6.8 C | -0.49 C |
| 1962 | 6.0 C | -1.30 C |
| 1963 | 5.8 C | -1.46 C |
| 1964 | 6.6 C | -0.65 C |
| 1965 | 6.3 C | -0.95 C |
| 1966 | 6.7 C | -0.60 C |
| 1967 | 6.2 C | -1.09 C |
| 1968 | 6.5 C | -0.82 C |
| 1969 | 6.5 C | -0.75 C |
| 1970 | 6.5 C | -0.78 C |
| 1971 | 6.7 C | -0.59 C |
| 1972 | 6.1 C | -1.15 C |
| 1973 | 7.9 C | +0.62 C |
| 1974 | 6.6 C | -0.69 C |
| 1975 | 7.2 C | -0.13 C |
| 1976 | 6.2 C | -1.09 C |
| 1977 | 6.6 C | -0.65 C |
| 1979 | 7.0 C | -0.26 C |
| 1980 | 6.4 C | -0.87 C |
| 1981 | 6.8 C | -0.44 C |
| 1982 | 6.7 C | -0.54 C |
| 1983 | 7.4 C | +0.09 C |
| 1984 | 7.2 C | -0.07 C |
| 1985 | 7.0 C | -0.26 C |
| 1986 | 7.0 C | -0.32 C |
| 1987 | 7.0 C | -0.27 C |
| 1988 | 6.8 C | -0.51 C |
| 1989 | 6.4 C | -0.85 C |
| 1990 | 8.4 C | +1.12 C |
| 1991 | 8.2 C | +0.88 C |
| 1992 | 6.3 C | -0.95 C |
| 1993 | 6.9 C | -0.36 C |
| 1994 | 7.0 C | -0.25 C |
| 1995 | 7.2 C | -0.04 C |
| 1996 | 6.9 C | -0.40 C |
| 1997 | 6.9 C | -0.43 C |
| 1998 | 9.0 C | +1.76 C |
| 1999 | 8.2 C | +0.93 C |
| 2003 | 6.8 C | -0.44 C |
| 2004 | 7.1 C | -0.19 C |
| 2005 | 7.6 C | +0.31 C |
| 2006 | 8.8 C | +1.47 C |
| 2007 | 7.8 C | +0.50 C |
| 2008 | 7.8 C | +0.50 C |
| 2009 | 7.2 C | -0.09 C |
| 2010 | 8.6 C | +1.30 C |
| 2011 | 8.4 C | +1.09 C |
| 2012 | 9.2 C | +1.88 C |
| 2013 | 7.7 C | +0.46 C |
| 2014 | 7.0 C | -0.24 C |
| 2015 | 7.8 C | +0.49 C |
| 2016 | 8.7 C | +1.43 C |
| 2017 | 8.2 C | +0.89 C |
| 2018 | 8.0 C | +0.76 C |
| 2019 | 7.5 C | +0.24 C |
| 2020 | 8.9 C | +1.62 C |
| 2021 | 8.5 C | +1.21 C |
| 2022 | 8.3 C | +0.98 C |
| 2023 | 9.1 C | +1.80 C |
| 2024 | 9.2 C | +1.93 C |
| 2025 | 8.1 C | +0.85 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1885 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 81 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 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1885 to 2025 | 81 | Rise |
| Mean daily maximum | 0.11 C (0.05 to 0.16) per decade | 0.2 F (0.1 to 0.3) per decade | 1885 to 2025 | 81 | Rise |
| Mean daily minimum | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.5) per decade | 1885 to 2025 | 81 | 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
1884 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 34.4 C (93.9 F) | 2026 | 31.7 C (89.1 F) | 89 |
| Coldest night (TNn) | -31.7 C (-25.1 F) | 1943 | -23.3 C (-9.9 F) | 89 |
| Wettest day (Rx1day) | 271.0 mm (10.7 in) | 1955 | 69.6 mm (2.7 in) | 89 |
| Wettest five days (Rx5day) | 349.8 mm (13.8 in) | 1955 | 104.4 mm (4.1 in) | 88 |
| Longest dry spell (CDD) | 27 days | 1948 | 14 days | 88 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1884 | 12.8 C (55.0 F) |
| 1885 | 31.1 C (88.0 F) |
| 1886 | 32.2 C (90.0 F) |
| 1887 | 10.0 C (50.0 F) |
| 1942 | 29.4 C (84.9 F) |
| 1943 | 32.8 C (91.0 F) |
| 1944 | 33.9 C (93.0 F) |
| 1945 | 32.8 C (91.0 F) |
| 1946 | 31.7 C (89.1 F) |
| 1947 | 31.1 C (88.0 F) |
| 1948 | 33.3 C (91.9 F) |
| 1949 | 33.9 C (93.0 F) |
| 1950 | 28.9 C (84.0 F) |
| 1951 | 30.0 C (86.0 F) |
| 1952 | 32.8 C (91.0 F) |
| 1953 | 33.9 C (93.0 F) |
| 1954 | 31.7 C (89.1 F) |
| 1955 | 33.9 C (93.0 F) |
| 1956 | 31.1 C (88.0 F) |
| 1957 | 32.8 C (91.0 F) |
| 1958 | 30.0 C (86.0 F) |
| 1959 | 31.1 C (88.0 F) |
| 1960 | 29.4 C (84.9 F) |
| 1961 | 29.4 C (84.9 F) |
| 1962 | 30.6 C (87.1 F) |
| 1963 | 32.2 C (90.0 F) |
| 1964 | 32.2 C (90.0 F) |
| 1965 | 31.7 C (89.1 F) |
| 1966 | 32.8 C (91.0 F) |
| 1967 | 31.1 C (88.0 F) |
| 1968 | 31.7 C (89.1 F) |
| 1969 | 31.1 C (88.0 F) |
| 1970 | 30.6 C (87.1 F) |
| 1971 | 30.0 C (86.0 F) |
| 1972 | 31.1 C (88.0 F) |
| 1973 | 31.1 C (88.0 F) |
| 1974 | 31.1 C (88.0 F) |
| 1975 | 32.2 C (90.0 F) |
| 1976 | 31.1 C (88.0 F) |
| 1977 | 32.2 C (90.0 F) |
| 1978 | 31.7 C (89.1 F) |
| 1979 | 31.1 C (88.0 F) |
| 1980 | 32.2 C (90.0 F) |
| 1981 | 31.1 C (88.0 F) |
| 1982 | 32.2 C (90.0 F) |
| 1983 | 31.7 C (89.1 F) |
| 1984 | 32.2 C (90.0 F) |
| 1985 | 30.6 C (87.1 F) |
| 1986 | 31.1 C (88.0 F) |
| 1987 | 31.7 C (89.1 F) |
| 1988 | 33.3 C (91.9 F) |
| 1989 | 29.4 C (84.9 F) |
| 1990 | 31.1 C (88.0 F) |
| 1991 | 33.3 C (91.9 F) |
| 1992 | 29.4 C (84.9 F) |
| 1993 | 32.8 C (91.0 F) |
| 1994 | 31.7 C (89.1 F) |
| 1995 | 32.8 C (91.0 F) |
| 1996 | 31.1 C (88.0 F) |
| 1997 | 31.7 C (89.1 F) |
| 1998 | 30.0 C (86.0 F) |
| 1999 | 32.8 C (91.0 F) |
| 2000 | 31.1 C (88.0 F) |
| 2001 | 32.2 C (90.0 F) |
| 2002 | 32.8 C (91.0 F) |
| 2003 | 30.6 C (87.1 F) |
| 2004 | 29.4 C (84.9 F) |
| 2005 | 31.7 C (89.1 F) |
| 2006 | 33.3 C (91.9 F) |
| 2007 | 32.2 C (90.0 F) |
| 2008 | 33.3 C (91.9 F) |
| 2009 | 31.1 C (88.0 F) |
| 2010 | 33.3 C (91.9 F) |
| 2011 | 33.9 C (93.0 F) |
| 2012 | 32.8 C (91.0 F) |
| 2013 | 32.2 C (90.0 F) |
| 2014 | 31.7 C (89.1 F) |
| 2015 | 31.7 C (89.1 F) |
| 2016 | 32.2 C (90.0 F) |
| 2017 | 31.7 C (89.1 F) |
| 2018 | 33.3 C (91.9 F) |
| 2019 | 32.2 C (90.0 F) |
| 2020 | 33.9 C (93.0 F) |
| 2021 | 32.8 C (91.0 F) |
| 2022 | 32.8 C (91.0 F) |
| 2023 | 31.7 C (89.1 F) |
| 2024 | 32.2 C (90.0 F) |
| 2025 | 33.9 C (93.0 F) |
| 2026 | 34.4 C (93.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1884 | -30.6 C (-23.1 F) |
| 1885 | -26.1 C (-15.0 F) |
| 1886 | -27.2 C (-17.0 F) |
| 1887 | -25.6 C (-14.1 F) |
| 1942 | -28.3 C (-18.9 F) |
| 1943 | -31.7 C (-25.1 F) |
| 1944 | -20.0 C (-4.0 F) |
| 1945 | -26.1 C (-15.0 F) |
| 1946 | -22.2 C (-8.0 F) |
| 1947 | -21.1 C (-6.0 F) |
| 1948 | -26.1 C (-15.0 F) |
| 1949 | -21.7 C (-7.1 F) |
| 1950 | -24.4 C (-11.9 F) |
| 1951 | -23.9 C (-11.0 F) |
| 1952 | -23.3 C (-9.9 F) |
| 1953 | -16.7 C (1.9 F) |
| 1954 | -23.3 C (-9.9 F) |
| 1955 | -25.6 C (-14.1 F) |
| 1956 | -21.1 C (-6.0 F) |
| 1957 | -30.0 C (-22.0 F) |
| 1958 | -23.9 C (-11.0 F) |
| 1959 | -20.6 C (-5.1 F) |
| 1960 | -21.7 C (-7.1 F) |
| 1961 | -26.1 C (-15.0 F) |
| 1962 | -25.6 C (-14.1 F) |
| 1963 | -27.2 C (-17.0 F) |
| 1964 | -22.2 C (-8.0 F) |
| 1965 | -23.9 C (-11.0 F) |
| 1966 | -23.3 C (-9.9 F) |
| 1967 | -26.1 C (-15.0 F) |
| 1968 | -28.9 C (-20.0 F) |
| 1969 | -23.3 C (-9.9 F) |
| 1970 | -23.9 C (-11.0 F) |
| 1971 | -26.7 C (-16.1 F) |
| 1972 | -23.3 C (-9.9 F) |
| 1973 | -23.9 C (-11.0 F) |
| 1974 | -23.3 C (-9.9 F) |
| 1975 | -22.2 C (-8.0 F) |
| 1976 | -26.7 C (-16.1 F) |
| 1977 | -23.9 C (-11.0 F) |
| 1978 | -23.3 C (-9.9 F) |
| 1979 | -27.2 C (-17.0 F) |
| 1980 | -28.9 C (-20.0 F) |
| 1981 | -26.1 C (-15.0 F) |
| 1982 | -27.2 C (-17.0 F) |
| 1983 | -23.3 C (-9.9 F) |
| 1984 | -26.7 C (-16.1 F) |
| 1985 | -21.7 C (-7.1 F) |
| 1986 | -22.2 C (-8.0 F) |
| 1987 | -24.4 C (-11.9 F) |
| 1988 | -25.0 C (-13.0 F) |
| 1989 | -23.9 C (-11.0 F) |
| 1990 | -21.7 C (-7.1 F) |
| 1991 | -21.1 C (-6.0 F) |
| 1992 | -20.0 C (-4.0 F) |
| 1993 | -23.3 C (-9.9 F) |
| 1994 | -29.4 C (-20.9 F) |
| 1995 | -24.4 C (-11.9 F) |
| 1996 | -23.3 C (-9.9 F) |
| 1997 | -22.2 C (-8.0 F) |
| 1998 | -20.0 C (-4.0 F) |
| 1999 | -20.6 C (-5.1 F) |
| 2000 | -23.3 C (-9.9 F) |
| 2001 | -17.2 C (1.0 F) |
| 2002 | -17.2 C (1.0 F) |
| 2003 | -22.2 C (-8.0 F) |
| 2004 | -25.0 C (-13.0 F) |
| 2005 | -25.6 C (-14.1 F) |
| 2006 | -18.9 C (-2.0 F) |
| 2007 | -20.6 C (-5.1 F) |
| 2008 | -20.6 C (-5.1 F) |
| 2009 | -24.4 C (-11.9 F) |
| 2010 | -20.6 C (-5.1 F) |
| 2011 | -25.6 C (-14.1 F) |
| 2012 | -19.4 C (-2.9 F) |
| 2013 | -20.6 C (-5.1 F) |
| 2014 | -22.8 C (-9.0 F) |
| 2015 | -24.4 C (-11.9 F) |
| 2016 | -28.3 C (-18.9 F) |
| 2017 | -20.6 C (-5.1 F) |
| 2018 | -23.3 C (-9.9 F) |
| 2019 | -24.4 C (-11.9 F) |
| 2020 | -17.8 C (0.0 F) |
| 2021 | -18.9 C (-2.0 F) |
| 2022 | -22.8 C (-9.0 F) |
| 2023 | -27.2 C (-17.0 F) |
| 2024 | -20.0 C (-4.0 F) |
| 2025 | -22.2 C (-8.0 F) |
| 2026 | -23.3 C (-9.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1884 | 52.1 mm (2.1 in) |
| 1885 | 80.0 mm (3.1 in) |
| 1886 | 63.5 mm (2.5 in) |
| 1887 | 43.7 mm (1.7 in) |
| 1942 | 49.0 mm (1.9 in) |
| 1943 | 81.0 mm (3.2 in) |
| 1944 | 71.9 mm (2.8 in) |
| 1945 | 77.5 mm (3.1 in) |
| 1946 | 57.7 mm (2.3 in) |
| 1947 | 58.9 mm (2.3 in) |
| 1948 | 145.8 mm (5.7 in) |
| 1949 | 89.7 mm (3.5 in) |
| 1950 | 126.0 mm (5.0 in) |
| 1951 | 60.2 mm (2.4 in) |
| 1952 | 77.7 mm (3.1 in) |
| 1953 | 57.4 mm (2.3 in) |
| 1954 | 71.9 mm (2.8 in) |
| 1955 | 271.0 mm (10.7 in) |
| 1956 | 44.5 mm (1.8 in) |
| 1957 | 70.9 mm (2.8 in) |
| 1958 | 45.2 mm (1.8 in) |
| 1959 | 71.6 mm (2.8 in) |
| 1960 | 90.9 mm (3.6 in) |
| 1961 | 56.1 mm (2.2 in) |
| 1962 | 51.1 mm (2.0 in) |
| 1963 | 41.1 mm (1.6 in) |
| 1964 | 40.1 mm (1.6 in) |
| 1965 | 39.4 mm (1.6 in) |
| 1966 | 56.9 mm (2.2 in) |
| 1967 | 43.7 mm (1.7 in) |
| 1968 | 68.1 mm (2.7 in) |
| 1969 | 90.7 mm (3.6 in) |
| 1970 | 44.7 mm (1.8 in) |
| 1971 | 83.3 mm (3.3 in) |
| 1972 | 102.4 mm (4.0 in) |
| 1973 | 79.0 mm (3.1 in) |
| 1974 | 50.0 mm (2.0 in) |
| 1975 | 81.8 mm (3.2 in) |
| 1976 | 102.9 mm (4.1 in) |
| 1977 | 86.6 mm (3.4 in) |
| 1978 | 47.5 mm (1.9 in) |
| 1979 | 69.1 mm (2.7 in) |
| 1980 | 90.2 mm (3.6 in) |
| 1981 | 60.2 mm (2.4 in) |
| 1982 | 81.5 mm (3.2 in) |
| 1983 | 59.9 mm (2.4 in) |
| 1984 | 69.3 mm (2.7 in) |
| 1985 | 101.6 mm (4.0 in) |
| 1986 | 124.5 mm (4.9 in) |
| 1987 | 104.6 mm (4.1 in) |
| 1988 | 73.2 mm (2.9 in) |
| 1989 | 65.5 mm (2.6 in) |
| 1990 | 80.5 mm (3.2 in) |
| 1991 | 69.1 mm (2.7 in) |
| 1992 | 57.9 mm (2.3 in) |
| 1993 | 56.6 mm (2.2 in) |
| 1994 | 44.5 mm (1.8 in) |
| 1995 | 84.3 mm (3.3 in) |
| 1996 | 89.7 mm (3.5 in) |
| 1997 | 71.6 mm (2.8 in) |
| 1998 | 47.8 mm (1.9 in) |
| 1999 | 147.3 mm (5.8 in) |
| 2000 | 91.9 mm (3.6 in) |
| 2001 | 61.5 mm (2.4 in) |
| 2002 | 50.3 mm (2.0 in) |
| 2003 | 68.1 mm (2.7 in) |
| 2004 | 67.8 mm (2.7 in) |
| 2005 | 165.6 mm (6.5 in) |
| 2006 | 63.0 mm (2.5 in) |
| 2007 | 97.8 mm (3.9 in) |
| 2008 | 101.1 mm (4.0 in) |
| 2009 | 43.7 mm (1.7 in) |
| 2010 | 93.5 mm (3.7 in) |
| 2011 | 144.5 mm (5.7 in) |
| 2012 | 63.0 mm (2.5 in) |
| 2013 | 85.1 mm (3.4 in) |
| 2014 | 84.3 mm (3.3 in) |
| 2015 | 57.2 mm (2.3 in) |
| 2016 | 65.0 mm (2.6 in) |
| 2017 | 124.5 mm (4.9 in) |
| 2018 | 66.3 mm (2.6 in) |
| 2019 | 69.6 mm (2.7 in) |
| 2020 | 74.7 mm (2.9 in) |
| 2021 | 110.2 mm (4.3 in) |
| 2022 | 58.4 mm (2.3 in) |
| 2023 | 168.4 mm (6.6 in) |
| 2024 | 73.4 mm (2.9 in) |
| 2025 | 61.7 mm (2.4 in) |
| 2026 | 52.1 mm (2.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1884 | 57.1 mm (2.2 in) |
| 1885 | 91.9 mm (3.6 in) |
| 1886 | 89.9 mm (3.5 in) |
| 1887 | n/a |
| 1942 | 87.0 mm (3.4 in) |
| 1943 | 91.6 mm (3.6 in) |
| 1944 | 106.1 mm (4.2 in) |
| 1945 | 146.5 mm (5.8 in) |
| 1946 | 129.5 mm (5.1 in) |
| 1947 | 121.4 mm (4.8 in) |
| 1948 | 180.3 mm (7.1 in) |
| 1949 | 271.8 mm (10.7 in) |
| 1950 | 141.5 mm (5.6 in) |
| 1951 | 105.9 mm (4.2 in) |
| 1952 | 100.4 mm (4.0 in) |
| 1953 | 101.0 mm (4.0 in) |
| 1954 | 147.6 mm (5.8 in) |
| 1955 | 349.8 mm (13.8 in) |
| 1956 | 62.0 mm (2.4 in) |
| 1957 | 92.7 mm (3.6 in) |
| 1958 | 85.8 mm (3.4 in) |
| 1959 | 109.6 mm (4.3 in) |
| 1960 | 149.3 mm (5.9 in) |
| 1961 | 91.9 mm (3.6 in) |
| 1962 | 74.0 mm (2.9 in) |
| 1963 | 87.1 mm (3.4 in) |
| 1964 | 59.7 mm (2.4 in) |
| 1965 | 46.7 mm (1.8 in) |
| 1966 | 73.4 mm (2.9 in) |
| 1967 | 67.2 mm (2.6 in) |
| 1968 | 79.0 mm (3.1 in) |
| 1969 | 146.8 mm (5.8 in) |
| 1970 | 91.3 mm (3.6 in) |
| 1971 | 100.8 mm (4.0 in) |
| 1972 | 120.1 mm (4.7 in) |
| 1973 | 100.8 mm (4.0 in) |
| 1974 | 87.4 mm (3.4 in) |
| 1975 | 201.1 mm (7.9 in) |
| 1976 | 126.9 mm (5.0 in) |
| 1977 | 110.5 mm (4.4 in) |
| 1978 | 78.2 mm (3.1 in) |
| 1979 | 128.3 mm (5.1 in) |
| 1980 | 125.3 mm (4.9 in) |
| 1981 | 124.4 mm (4.9 in) |
| 1982 | 105.4 mm (4.1 in) |
| 1983 | 139.1 mm (5.5 in) |
| 1984 | 206.7 mm (8.1 in) |
| 1985 | 123.7 mm (4.9 in) |
| 1986 | 196.1 mm (7.7 in) |
| 1987 | 152.3 mm (6.0 in) |
| 1988 | 102.6 mm (4.0 in) |
| 1989 | 126.8 mm (5.0 in) |
| 1990 | 121.4 mm (4.8 in) |
| 1991 | 119.4 mm (4.7 in) |
| 1992 | 92.4 mm (3.6 in) |
| 1993 | 78.7 mm (3.1 in) |
| 1994 | 84.6 mm (3.3 in) |
| 1995 | 109.8 mm (4.3 in) |
| 1996 | 123.5 mm (4.9 in) |
| 1997 | 89.6 mm (3.5 in) |
| 1998 | 103.4 mm (4.1 in) |
| 1999 | 172.4 mm (6.8 in) |
| 2000 | 99.5 mm (3.9 in) |
| 2001 | 96.3 mm (3.8 in) |
| 2002 | 79.5 mm (3.1 in) |
| 2003 | 92.9 mm (3.7 in) |
| 2004 | 105.7 mm (4.2 in) |
| 2005 | 225.0 mm (8.9 in) |
| 2006 | 103.2 mm (4.1 in) |
| 2007 | 131.0 mm (5.2 in) |
| 2008 | 141.3 mm (5.6 in) |
| 2009 | 110.9 mm (4.4 in) |
| 2010 | 187.8 mm (7.4 in) |
| 2011 | 211.5 mm (8.3 in) |
| 2012 | 77.2 mm (3.0 in) |
| 2013 | 113.5 mm (4.5 in) |
| 2014 | 145.8 mm (5.7 in) |
| 2015 | 72.7 mm (2.9 in) |
| 2016 | 79.7 mm (3.1 in) |
| 2017 | 136.0 mm (5.4 in) |
| 2018 | 98.1 mm (3.9 in) |
| 2019 | 84.9 mm (3.3 in) |
| 2020 | 80.5 mm (3.2 in) |
| 2021 | 144.8 mm (5.7 in) |
| 2022 | 99.2 mm (3.9 in) |
| 2023 | 226.3 mm (8.9 in) |
| 2024 | 100.1 mm (3.9 in) |
| 2025 | 79.8 mm (3.1 in) |
| 2026 | 100.9 mm (4.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1884 | 6 days |
| 1885 | 14 days |
| 1886 | 15 days |
| 1887 | n/a |
| 1942 | 9 days |
| 1943 | 13 days |
| 1944 | 16 days |
| 1945 | 12 days |
| 1946 | 18 days |
| 1947 | 25 days |
| 1948 | 27 days |
| 1949 | 14 days |
| 1950 | 16 days |
| 1951 | 12 days |
| 1952 | 25 days |
| 1953 | 23 days |
| 1954 | 12 days |
| 1955 | 10 days |
| 1956 | 16 days |
| 1957 | 17 days |
| 1958 | 15 days |
| 1959 | 12 days |
| 1960 | 18 days |
| 1961 | 15 days |
| 1962 | 11 days |
| 1963 | 23 days |
| 1964 | 17 days |
| 1965 | 13 days |
| 1966 | 18 days |
| 1967 | 14 days |
| 1968 | 12 days |
| 1969 | 10 days |
| 1970 | 14 days |
| 1971 | 13 days |
| 1972 | 16 days |
| 1973 | 14 days |
| 1974 | 11 days |
| 1975 | 15 days |
| 1976 | 17 days |
| 1977 | 13 days |
| 1978 | 13 days |
| 1979 | 13 days |
| 1980 | 19 days |
| 1981 | 18 days |
| 1982 | 20 days |
| 1983 | 14 days |
| 1984 | 16 days |
| 1985 | 14 days |
| 1986 | 14 days |
| 1987 | 10 days |
| 1988 | 12 days |
| 1989 | 13 days |
| 1990 | 10 days |
| 1991 | 13 days |
| 1992 | 15 days |
| 1993 | 16 days |
| 1994 | 10 days |
| 1995 | 16 days |
| 1996 | 10 days |
| 1997 | 12 days |
| 1998 | 13 days |
| 1999 | 17 days |
| 2000 | 10 days |
| 2001 | 20 days |
| 2002 | 14 days |
| 2003 | 9 days |
| 2004 | 14 days |
| 2005 | 13 days |
| 2006 | 18 days |
| 2007 | 20 days |
| 2008 | 15 days |
| 2009 | 12 days |
| 2010 | 18 days |
| 2011 | 17 days |
| 2012 | 17 days |
| 2013 | 18 days |
| 2014 | 18 days |
| 2015 | 22 days |
| 2016 | 17 days |
| 2017 | 14 days |
| 2018 | 14 days |
| 2019 | 10 days |
| 2020 | 16 days |
| 2021 | 16 days |
| 2022 | 11 days |
| 2023 | 17 days |
| 2024 | 17 days |
| 2025 | 16 days |
| 2026 | 12 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
81 years with a frostAcross 81 years with a frost, the median last spring frost at Norfolk 2 SW falls on 9 May and the median first autumn frost on 6 October, which leaves a median of 151 days between them.
In 1993 to 2025 the median growing season was 164 days. That is 23 days more than in 1885 to 1970.
Fitted over all years, the growing season changes by +3.4 days per decade at this station.
| Measure | Median, all years | Earliest period (1885 to 1970) | Recent period (1993 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 9 May | 14 May | 1 May | 13 days earlier | -1.3 days per decade |
| First autumn frost | 6 October | 2 October | 18 October | 16 days later | +2.0 days per decade |
| Growing days | 151 days | 141 days | 164 days | 23 days more | +3.4 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
83 years, 1886 to 2025A day with at least 70.7 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 212.3 mm (8.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 70.7 mm (2.8 in) | |
| 5 years | 97.5 mm (3.8 in) | |
| 10 years | 119.0 mm (4.7 in) | |
| 25 years | 151.3 mm (6.0 in) | |
| 50 years | 179.7 mm (7.1 in) | |
| 100 years | 212.3 mm (8.4 in) | Longer than the 83 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, 83 years of values from 1886 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: 271.0 mm (10.7 in) in 1955; 168.4 mm (6.6 in) in 2023; 165.6 mm (6.5 in) in 2005.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Norfolk 2 SW, at 1981. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1981 ran 0.3 C (0.5 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1981 | +0.3 | +0.5 | 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, Norfolk 2 SW had a mean temperature of 8.3 C (47.0 F) and 1,355.4 mm (53.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Worcester (United States, 116 km away), W Thompson Lake (United States, 109 km away) and Corry (United States, 530 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Worcester | United States | 116 km (72 mi) | 8.3 C (46.9 F) | 1,213.2 mm (47.8 in) | 0.77 |
| W Thompson Lake | United States | 109 km (68 mi) | 8.7 C (47.6 F) | 1,258.0 mm (49.5 in) | 0.85 |
| Corry | United States | 530 km (329 mi) | 8.2 C (46.8 F) | 1,198.2 mm (47.2 in) | 0.92 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).