Norwich Public Utility Plt Weather Records (USC00065910)
Record envelope, standing records and threshold days for Norwich Public Utility Plt (USC00065910), Connecticut, United States, with 71 years of record.
Key Facts for Norwich Public Utility Plt
- Norwich Public Utility Plt (USC00065910) is a weather station in Connecticut, United States at 41.53 latitude and -72.07 longitude, 6 m (20 ft) above sea level.
- The station reports from 1956 to 2026, 71 years of record.
- 1,464 records set at Norwich Public Utility Plt still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Norwich Public Utility Plt set a daily record precipitation of 46.7 mm (1.8 in) on 27 September 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, 41.53 latitude, -72.07 longitude.
- Elevation: 6 m (20 ft).
- Period of record: 1956 to 2026, 71 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 | 21.1 C (70.0 F) | -29.4 C (-20.9 F) | 11.1 C (52.0 F) | -17.8 C (0.0 F) |
| Feb | 22.2 C (72.0 F) | -27.2 C (-17.0 F) | 8.9 C (48.0 F) | -18.3 C (-0.9 F) |
| Mar | 29.4 C (84.9 F) | -18.3 C (-0.9 F) | 23.3 C (73.9 F) | -11.1 C (12.0 F) |
| Apr | 34.4 C (93.9 F) | -8.3 C (17.1 F) | 28.9 C (84.0 F) | -2.2 C (28.0 F) |
| May | 36.7 C (98.1 F) | -2.8 C (27.0 F) | 33.9 C (93.0 F) | 3.3 C (37.9 F) |
| Jun | 38.3 C (100.9 F) | 0.6 C (33.1 F) | 35.0 C (95.0 F) | 6.1 C (43.0 F) |
| Jul | 38.3 C (100.9 F) | 6.1 C (43.0 F) | 37.2 C (99.0 F) | 11.1 C (52.0 F) |
| Aug | 38.9 C (102.0 F) | 4.4 C (39.9 F) | 34.4 C (93.9 F) | 12.8 C (55.0 F) |
| Sep | 36.1 C (97.0 F) | -1.7 C (28.9 F) | 30.0 C (86.0 F) | 6.7 C (44.1 F) |
| Oct | 31.1 C (88.0 F) | -7.8 C (18.0 F) | 28.3 C (82.9 F) | 2.2 C (36.0 F) |
| Nov | 26.7 C (80.1 F) | -14.4 C (6.1 F) | n/a | n/a |
| Dec | 25.0 C (77.0 F) | -25.0 C (-13.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1956 | 12 |
| 1957 | 41 |
| 1958 | 22 |
| 1959 | 39 |
| 1960 | 16 |
| 1961 | 23 |
| 1962 | 24 |
| 1963 | 38 |
| 1964 | 25 |
| 1965 | 20 |
| 1966 | 23 |
| 1967 | 33 |
| 1968 | 19 |
| 1969 | 5 |
| 1970 | 17 |
| 1971 | 13 |
| 1972 | 28 |
| 1973 | 17 |
| 1974 | 28 |
| 1975 | 14 |
| 1976 | 19 |
| 1977 | 17 |
| 1978 | 15 |
| 1979 | 39 |
| 1980 | 22 |
| 1981 | 16 |
| 1982 | 25 |
| 1983 | 20 |
| 1984 | 21 |
| 1985 | 15 |
| 1986 | 22 |
| 1987 | 22 |
| 1988 | 23 |
| 1989 | 27 |
| 1990 | 31 |
| 1991 | 29 |
| 1992 | 7 |
| 1993 | 20 |
| 1994 | 17 |
| 1995 | 28 |
| 1996 | 21 |
| 1997 | 9 |
| 1998 | 23 |
| 1999 | 18 |
| 2000 | 22 |
| 2001 | 20 |
| 2002 | 29 |
| 2003 | 19 |
| 2004 | 12 |
| 2005 | 18 |
| 2006 | 11 |
| 2007 | 20 |
| 2008 | 5 |
| 2009 | 9 |
| 2010 | 12 |
| 2011 | 11 |
| 2012 | 31 |
| 2013 | 16 |
| 2014 | 11 |
| 2015 | 28 |
| 2016 | 26 |
| 2017 | 37 |
| 2018 | 29 |
| 2019 | 17 |
| 2020 | 24 |
| 2021 | 16 |
| 2022 | 19 |
| 2023 | 18 |
| 2024 | 14 |
| 2025 | 15 |
| 2026 | 12 |
All-Time Record Progression
10 new records| Date | Kind | Detail |
|---|---|---|
| 1991-07-21 | Record high maximum temperature | Record high maximum temperature 38.3 C (100.9 F) |
| 1994-01-19 | Record low minimum temperature | Record low minimum temperature -27.8 C (-18.0 F) |
| 1994-01-21 | Record low minimum temperature | Record low minimum temperature -29.4 C (-20.9 F) |
| 1996-01-07 | Record snow depth | Record snow depth 45.7 cm (18.0 in) |
| 1996-01-08 | Record snow depth | Record snow depth 63.5 cm (25.0 in) |
| 2001-08-10 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 2003-02-18 | Record daily snowfall | Record daily snowfall 41.9 cm (16.5 in) |
| 2005-10-15 | Record daily precipitation | Record daily precipitation 157.0 mm (6.2 in) |
| 2013-02-09 | Record daily snowfall | Record daily snowfall 50.8 cm (20.0 in) |
| 2021-09-02 | Record daily precipitation | Record daily precipitation 161.0 mm (6.3 in) |
Wettest Day of Each Month
Sep: 161.0 mm (6.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 95.5 mm (3.8 in) | 10 January 2024 |
| Feb | 73.4 mm (2.9 in) | 14 February 2008 |
| Mar | 140.7 mm (5.5 in) | 30 March 2010 |
| Apr | 108.7 mm (4.3 in) | 14 April 2004 |
| May | 109.5 mm (4.3 in) | 13 May 2006 |
| Jun | 155.2 mm (6.1 in) | 5 June 1982 |
| Jul | 122.2 mm (4.8 in) | 2 July 2009 |
| Aug | 132.3 mm (5.2 in) | 19 August 1991 |
| Sep | 161.0 mm (6.3 in) | 2 September 2021 |
| Oct | 157.0 mm (6.2 in) | 15 October 2005 |
| Nov | 82.3 mm (3.2 in) | 24 November 2006 |
| Dec | 114.8 mm (4.5 in) | 11 December 2023 |
Period of Record Coverage
1956 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1956 | 153 | 42% | No |
| 1957 | 342 | 94% | Yes |
| 1958 | 357 | 98% | Yes |
| 1959 | 343 | 94% | Yes |
| 1960 | 357 | 98% | Yes |
| 1961 | 361 | 99% | Yes |
| 1962 | 331 | 91% | Yes |
| 1963 | 360 | 99% | Yes |
| 1964 | 347 | 95% | Yes |
| 1965 | 332 | 91% | Yes |
| 1966 | 360 | 99% | Yes |
| 1967 | 351 | 96% | Yes |
| 1968 | 202 | 55% | No |
| 1969 | 185 | 51% | No |
| 1970 | 247 | 68% | No |
| 1971 | 345 | 95% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 349 | 96% | Yes |
| 1974 | 349 | 96% | Yes |
| 1975 | 121 | 33% | No |
| 1976 | 103 | 28% | No |
| 1977 | 272 | 75% | No |
| 1978 | 352 | 96% | Yes |
| 1979 | 361 | 99% | Yes |
| 1980 | 364 | 99% | Yes |
| 1981 | 359 | 98% | Yes |
| 1982 | 360 | 99% | Yes |
| 1983 | 362 | 99% | Yes |
| 1984 | 333 | 91% | Yes |
| 1985 | 359 | 98% | Yes |
| 1986 | 360 | 99% | Yes |
| 1987 | 362 | 99% | Yes |
| 1988 | 361 | 99% | Yes |
| 1989 | 363 | 99% | Yes |
| 1990 | 352 | 96% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 365 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 365 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 365 | 100% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 364 | 100% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 334 | 92% | Yes |
| 2006 | 337 | 92% | Yes |
| 2007 | 364 | 100% | Yes |
| 2008 | 182 | 50% | No |
| 2009 | 272 | 75% | No |
| 2010 | 211 | 58% | No |
| 2011 | 242 | 66% | No |
| 2012 | 363 | 99% | Yes |
| 2013 | 362 | 99% | Yes |
| 2014 | 363 | 99% | Yes |
| 2015 | 360 | 99% | Yes |
| 2016 | 362 | 99% | Yes |
| 2017 | 362 | 99% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 363 | 99% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 364 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 363 | 99% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 363 | 99% | Yes |
| 2026 | 284 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 27 September 2026 | Norwich Public Utility Plt, US | daily rain (Provisional) | 46.7 mm (1.8 in) | 15.2 mm (0.6 in) | 51 years | 30 of 100 (Routine) |
| 14 September 2026 | Norwich Public Utility Plt, US | daily rain (Provisional) | 83.6 mm (3.3 in) | 50.1 mm (2.0 in) | 36 years | 44 of 100 (Notable) |
| 24 August 2026 | Norwich Public Utility Plt, US | daily rain (Provisional) | 31.8 mm (1.3 in) | 0.8 mm (0.03 in) | 36 years | 17 of 100 (Routine) |
| 22 July 2026 | Norwich Public Utility Plt, US | daily rain | 43.9 mm (1.7 in) | 18.0 mm (0.7 in) | 28 years | 26 of 100 (Routine) |
| 7 July 2026 | Norwich Public Utility Plt, US | daily low max | 21.1 C (70.0 F) | 0.6 C (1.1 F) | 20 years | 14 of 100 (Routine) |
| 4 July 2026 | Norwich Public Utility Plt, US | daily high max | 37.2 C (99.0 F) | 0.5 C (0.9 F) | 24 years | 15 of 100 (Routine) |
| 4 July 2026 | Norwich Public Utility Plt, US | daily high min | 24.4 C (75.9 F) | 1.1 C (2.0 F) | 12 years | 13 of 100 (Routine) |
| 2 July 2026 | Norwich Public Utility Plt, US | daily high min (Tie) | 22.2 C (72.0 F) | tie | 27 years | 3 of 100 (Routine) |
| 13 June 2026 | Norwich Public Utility Plt, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 11 years | 2 of 100 (Routine) |
| 12 June 2026 | Norwich Public Utility Plt, US | daily high max | 35.0 C (95.0 F) | 0.6 C (1.1 F) | 52 years | 23 of 100 (Routine) |
| 6 June 2026 | Norwich Public Utility Plt, US | daily high max (Tie) | 32.8 C (91.0 F) | tie | 0 years | 1 of 100 (Routine) |
| 20 May 2026 | Norwich Public Utility Plt, US | daily high min | 18.9 C (66.0 F) | 2.2 C (4.0 F) | 56 years | 29 of 100 (Routine) |
| 18 May 2026 | Norwich Public Utility Plt, US | daily high max | 31.1 C (88.0 F) | 0.5 C (0.9 F) | 36 years | 18 of 100 (Routine) |
| 17 April 2026 | Norwich Public Utility Plt, US | daily high min | 15.6 C (60.1 F) | 1.2 C (2.2 F) | 49 years | 24 of 100 (Routine) |
| 16 April 2026 | Norwich Public Utility Plt, US | daily high max | 28.9 C (84.0 F) | 1.1 C (2.0 F) | 65 years | 28 of 100 (Routine) |
| 16 April 2026 | Norwich Public Utility Plt, US | daily high min | 14.4 C (57.9 F) | 1.1 C (2.0 F) | 49 years | 23 of 100 (Routine) |
| 1 April 2026 | Norwich Public Utility Plt, US | daily high max | 24.4 C (75.9 F) | 2.2 C (4.0 F) | 59 years | 28 of 100 (Routine) |
| 1 April 2026 | Norwich Public Utility Plt, US | daily high min (Tie) | 11.1 C (52.0 F) | tie | 64 years | 6 of 100 (Routine) |
| 12 March 2026 | Norwich Public Utility Plt, US | daily high max | 20.6 C (69.1 F) | 1.2 C (2.2 F) | 4 years | 10 of 100 (Routine) |
| 27 February 2026 | Norwich Public Utility Plt, US | daily snow depth | 30.5 cm (12.0 in) | 20.3 cm (8.0 in) | 19 years | 29 of 100 (Routine) |
Climate Trend
49 complete years, 1957 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1957 | 10.9 C | +0.13 C |
| 1958 | 9.4 C | -1.28 C |
| 1959 | 11.1 C | +0.39 C |
| 1960 | 10.7 C | -0.02 C |
| 1961 | 10.8 C | +0.06 C |
| 1963 | 10.2 C | -0.57 C |
| 1964 | 10.4 C | -0.37 C |
| 1966 | 10.2 C | -0.56 C |
| 1972 | 9.9 C | -0.83 C |
| 1973 | 10.4 C | -0.32 C |
| 1974 | 9.6 C | -1.12 C |
| 1978 | 9.5 C | -1.21 C |
| 1979 | 10.7 C | -0.06 C |
| 1980 | 10.2 C | -0.54 C |
| 1981 | 10.0 C | -0.75 C |
| 1982 | 9.9 C | -0.78 C |
| 1983 | 10.8 C | +0.05 C |
| 1985 | 10.5 C | -0.20 C |
| 1986 | 10.4 C | -0.35 C |
| 1987 | 10.4 C | -0.34 C |
| 1988 | 9.9 C | -0.79 C |
| 1989 | 9.6 C | -1.09 C |
| 1991 | 10.8 C | +0.10 C |
| 1994 | 10.4 C | -0.34 C |
| 1995 | 10.6 C | -0.08 C |
| 1996 | 10.2 C | -0.50 C |
| 1997 | 10.4 C | -0.33 C |
| 1998 | 11.8 C | +1.09 C |
| 1999 | 11.6 C | +0.87 C |
| 2000 | 10.0 C | -0.68 C |
| 2001 | 11.0 C | +0.28 C |
| 2002 | 10.9 C | +0.20 C |
| 2003 | 9.8 C | -0.91 C |
| 2004 | 10.0 C | -0.75 C |
| 2007 | 10.3 C | -0.38 C |
| 2012 | 12.4 C | +1.70 C |
| 2013 | 11.1 C | +0.37 C |
| 2014 | 10.4 C | -0.34 C |
| 2015 | 10.9 C | +0.14 C |
| 2016 | 11.9 C | +1.15 C |
| 2017 | 11.6 C | +0.86 C |
| 2018 | 11.5 C | +0.78 C |
| 2019 | 10.9 C | +0.21 C |
| 2020 | 12.1 C | +1.34 C |
| 2021 | 11.9 C | +1.21 C |
| 2022 | 11.7 C | +0.94 C |
| 2023 | 12.3 C | +1.62 C |
| 2024 | 12.2 C | +1.48 C |
| 2025 | 11.2 C | +0.45 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1957 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 49 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 (0.3 to 0.6) per decade | 1957 to 2025 | 49 | Rise |
| Mean daily maximum | 0.10 C (0.01 to 0.20) per decade | 0.19 F (0.02 to 0.36) per decade | 1957 to 2025 | 49 | Rise |
| Mean daily minimum | 0.4 C (0.2 to 0.5) per decade | 0.6 F (0.4 to 0.8) per decade | 1957 to 2025 | 49 | 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
1956 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 38.9 C (102.0 F) | 2001 | 35.0 C (95.0 F) | 71 |
| Coldest night (TNn) | -29.4 C (-20.9 F) | 1994 | -18.3 C (-0.9 F) | 71 |
| Wettest day (Rx1day) | 161.0 mm (6.3 in) | 2021 | 82.3 mm (3.2 in) | 71 |
| Wettest five days (Rx5day) | 253.5 mm (10.0 in) | 1982 | 115.8 mm (4.6 in) | 71 |
| Longest dry spell (CDD) | 37 days | 1995 | 17 days | 71 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1956 | 33.9 C (93.0 F) |
| 1957 | 37.8 C (100.0 F) |
| 1958 | 33.3 C (91.9 F) |
| 1959 | 35.6 C (96.1 F) |
| 1960 | 34.4 C (93.9 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 34.4 C (93.9 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 36.7 C (98.1 F) |
| 1965 | 33.9 C (93.0 F) |
| 1966 | 37.8 C (100.0 F) |
| 1967 | 32.8 C (91.0 F) |
| 1968 | 28.9 C (84.0 F) |
| 1969 | 32.2 C (90.0 F) |
| 1970 | 32.2 C (90.0 F) |
| 1971 | 34.4 C (93.9 F) |
| 1972 | 33.3 C (91.9 F) |
| 1973 | 35.0 C (95.0 F) |
| 1974 | 35.6 C (96.1 F) |
| 1975 | 32.2 C (90.0 F) |
| 1976 | 30.6 C (87.1 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 35.0 C (95.0 F) |
| 1980 | 37.8 C (100.0 F) |
| 1981 | 35.6 C (96.1 F) |
| 1982 | 35.0 C (95.0 F) |
| 1983 | 36.1 C (97.0 F) |
| 1984 | 37.2 C (99.0 F) |
| 1985 | 33.9 C (93.0 F) |
| 1986 | 35.0 C (95.0 F) |
| 1987 | 35.0 C (95.0 F) |
| 1988 | 36.7 C (98.1 F) |
| 1989 | 35.0 C (95.0 F) |
| 1990 | 33.3 C (91.9 F) |
| 1991 | 38.3 C (100.9 F) |
| 1992 | 35.0 C (95.0 F) |
| 1993 | 36.7 C (98.1 F) |
| 1994 | 34.4 C (93.9 F) |
| 1995 | 38.3 C (100.9 F) |
| 1996 | 36.7 C (98.1 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 38.3 C (100.9 F) |
| 2000 | 33.9 C (93.0 F) |
| 2001 | 38.9 C (102.0 F) |
| 2002 | 37.2 C (99.0 F) |
| 2003 | 35.0 C (95.0 F) |
| 2004 | 34.4 C (93.9 F) |
| 2005 | 36.1 C (97.0 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 35.6 C (96.1 F) |
| 2008 | 27.2 C (81.0 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 37.2 C (99.0 F) |
| 2011 | 32.2 C (90.0 F) |
| 2012 | 37.2 C (99.0 F) |
| 2013 | 36.1 C (97.0 F) |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 34.4 C (93.9 F) |
| 2016 | 35.6 C (96.1 F) |
| 2017 | 34.4 C (93.9 F) |
| 2018 | 38.3 C (100.9 F) |
| 2019 | 35.6 C (96.1 F) |
| 2020 | 35.6 C (96.1 F) |
| 2021 | 35.6 C (96.1 F) |
| 2022 | 35.6 C (96.1 F) |
| 2023 | 35.0 C (95.0 F) |
| 2024 | 35.0 C (95.0 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 37.2 C (99.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1956 | -13.9 C (7.0 F) |
| 1957 | -25.0 C (-13.0 F) |
| 1958 | -19.4 C (-2.9 F) |
| 1959 | -21.1 C (-6.0 F) |
| 1960 | -16.7 C (1.9 F) |
| 1961 | -25.0 C (-13.0 F) |
| 1962 | -20.6 C (-5.1 F) |
| 1963 | -20.6 C (-5.1 F) |
| 1964 | -17.8 C (0.0 F) |
| 1965 | -22.2 C (-8.0 F) |
| 1966 | -17.8 C (0.0 F) |
| 1967 | -22.8 C (-9.0 F) |
| 1968 | -23.3 C (-9.9 F) |
| 1969 | -14.4 C (6.1 F) |
| 1970 | -12.8 C (9.0 F) |
| 1971 | -18.9 C (-2.0 F) |
| 1972 | -26.1 C (-15.0 F) |
| 1973 | -18.3 C (-0.9 F) |
| 1974 | -17.8 C (0.0 F) |
| 1975 | -17.8 C (0.0 F) |
| 1976 | -23.3 C (-9.9 F) |
| 1977 | -22.2 C (-8.0 F) |
| 1978 | -17.2 C (1.0 F) |
| 1979 | -22.8 C (-9.0 F) |
| 1980 | -25.0 C (-13.0 F) |
| 1981 | -23.3 C (-9.9 F) |
| 1982 | -24.4 C (-11.9 F) |
| 1983 | -21.1 C (-6.0 F) |
| 1984 | -25.0 C (-13.0 F) |
| 1985 | -20.6 C (-5.1 F) |
| 1986 | -16.7 C (1.9 F) |
| 1987 | -18.3 C (-0.9 F) |
| 1988 | -23.3 C (-9.9 F) |
| 1989 | -21.1 C (-6.0 F) |
| 1990 | -18.3 C (-0.9 F) |
| 1991 | -21.7 C (-7.1 F) |
| 1992 | -13.9 C (7.0 F) |
| 1993 | -21.1 C (-6.0 F) |
| 1994 | -29.4 C (-20.9 F) |
| 1995 | -20.6 C (-5.1 F) |
| 1996 | -27.2 C (-17.0 F) |
| 1997 | -17.8 C (0.0 F) |
| 1998 | -13.3 C (8.1 F) |
| 1999 | -15.0 C (5.0 F) |
| 2000 | -16.7 C (1.9 F) |
| 2001 | -13.9 C (7.0 F) |
| 2002 | -13.9 C (7.0 F) |
| 2003 | -18.9 C (-2.0 F) |
| 2004 | -20.6 C (-5.1 F) |
| 2005 | -19.4 C (-2.9 F) |
| 2006 | -13.9 C (7.0 F) |
| 2007 | -16.1 C (3.0 F) |
| 2008 | -13.9 C (7.0 F) |
| 2009 | -19.4 C (-2.9 F) |
| 2010 | -12.8 C (9.0 F) |
| 2011 | -17.8 C (0.0 F) |
| 2012 | -12.2 C (10.0 F) |
| 2013 | -13.9 C (7.0 F) |
| 2014 | -18.3 C (-0.9 F) |
| 2015 | -20.6 C (-5.1 F) |
| 2016 | -21.7 C (-7.1 F) |
| 2017 | -15.0 C (5.0 F) |
| 2018 | -18.3 C (-0.9 F) |
| 2019 | -16.7 C (1.9 F) |
| 2020 | -12.2 C (10.0 F) |
| 2021 | -12.2 C (10.0 F) |
| 2022 | -16.7 C (1.9 F) |
| 2023 | -20.6 C (-5.1 F) |
| 2024 | -13.3 C (8.1 F) |
| 2025 | -14.4 C (6.1 F) |
| 2026 | -18.3 C (-0.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1956 | 45.2 mm (1.8 in) |
| 1957 | 47.0 mm (1.9 in) |
| 1958 | 50.8 mm (2.0 in) |
| 1959 | 78.7 mm (3.1 in) |
| 1960 | 72.6 mm (2.9 in) |
| 1961 | 104.6 mm (4.1 in) |
| 1962 | 84.3 mm (3.3 in) |
| 1963 | 55.1 mm (2.2 in) |
| 1964 | 63.0 mm (2.5 in) |
| 1965 | 50.3 mm (2.0 in) |
| 1966 | 55.9 mm (2.2 in) |
| 1967 | 92.5 mm (3.6 in) |
| 1968 | 66.3 mm (2.6 in) |
| 1969 | 73.7 mm (2.9 in) |
| 1970 | 80.8 mm (3.2 in) |
| 1971 | 110.5 mm (4.4 in) |
| 1972 | 87.9 mm (3.5 in) |
| 1973 | 105.4 mm (4.1 in) |
| 1974 | 85.9 mm (3.4 in) |
| 1975 | 53.8 mm (2.1 in) |
| 1976 | 75.2 mm (3.0 in) |
| 1977 | 72.4 mm (2.9 in) |
| 1978 | 68.6 mm (2.7 in) |
| 1979 | 82.3 mm (3.2 in) |
| 1980 | 92.5 mm (3.6 in) |
| 1981 | 65.0 mm (2.6 in) |
| 1982 | 155.2 mm (6.1 in) |
| 1983 | 96.0 mm (3.8 in) |
| 1984 | 72.6 mm (2.9 in) |
| 1985 | 59.7 mm (2.4 in) |
| 1986 | 58.2 mm (2.3 in) |
| 1987 | 83.8 mm (3.3 in) |
| 1988 | 74.9 mm (2.9 in) |
| 1989 | 81.3 mm (3.2 in) |
| 1990 | 104.4 mm (4.1 in) |
| 1991 | 132.3 mm (5.2 in) |
| 1992 | 70.1 mm (2.8 in) |
| 1993 | 88.1 mm (3.5 in) |
| 1994 | 67.3 mm (2.6 in) |
| 1995 | 69.6 mm (2.7 in) |
| 1996 | 84.8 mm (3.3 in) |
| 1997 | 60.5 mm (2.4 in) |
| 1998 | 126.5 mm (5.0 in) |
| 1999 | 88.9 mm (3.5 in) |
| 2000 | 64.3 mm (2.5 in) |
| 2001 | 115.1 mm (4.5 in) |
| 2002 | 67.1 mm (2.6 in) |
| 2003 | 73.9 mm (2.9 in) |
| 2004 | 108.7 mm (4.3 in) |
| 2005 | 157.0 mm (6.2 in) |
| 2006 | 109.5 mm (4.3 in) |
| 2007 | 100.6 mm (4.0 in) |
| 2008 | 85.1 mm (3.4 in) |
| 2009 | 122.2 mm (4.8 in) |
| 2010 | 140.7 mm (5.5 in) |
| 2011 | 69.1 mm (2.7 in) |
| 2012 | 85.6 mm (3.4 in) |
| 2013 | 112.3 mm (4.4 in) |
| 2014 | 120.4 mm (4.7 in) |
| 2015 | 54.6 mm (2.1 in) |
| 2016 | 58.2 mm (2.3 in) |
| 2017 | 77.0 mm (3.0 in) |
| 2018 | 117.3 mm (4.6 in) |
| 2019 | 111.8 mm (4.4 in) |
| 2020 | 39.1 mm (1.5 in) |
| 2021 | 161.0 mm (6.3 in) |
| 2022 | 148.6 mm (5.9 in) |
| 2023 | 114.8 mm (4.5 in) |
| 2024 | 95.5 mm (3.8 in) |
| 2025 | 59.4 mm (2.3 in) |
| 2026 | 83.6 mm (3.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1956 | 71.0 mm (2.8 in) |
| 1957 | 73.9 mm (2.9 in) |
| 1958 | 95.7 mm (3.8 in) |
| 1959 | 116.5 mm (4.6 in) |
| 1960 | 121.8 mm (4.8 in) |
| 1961 | 148.2 mm (5.8 in) |
| 1962 | 88.1 mm (3.5 in) |
| 1963 | 110.8 mm (4.4 in) |
| 1964 | 75.7 mm (3.0 in) |
| 1965 | 52.1 mm (2.1 in) |
| 1966 | 83.8 mm (3.3 in) |
| 1967 | 112.8 mm (4.4 in) |
| 1968 | 78.3 mm (3.1 in) |
| 1969 | 125.3 mm (4.9 in) |
| 1970 | 114.3 mm (4.5 in) |
| 1971 | 117.6 mm (4.6 in) |
| 1972 | 142.3 mm (5.6 in) |
| 1973 | 105.4 mm (4.1 in) |
| 1974 | 85.9 mm (3.4 in) |
| 1975 | 145.1 mm (5.7 in) |
| 1976 | 84.1 mm (3.3 in) |
| 1977 | 85.7 mm (3.4 in) |
| 1978 | 92.0 mm (3.6 in) |
| 1979 | 143.8 mm (5.7 in) |
| 1980 | 154.7 mm (6.1 in) |
| 1981 | 110.0 mm (4.3 in) |
| 1982 | 253.5 mm (10.0 in) |
| 1983 | 129.0 mm (5.1 in) |
| 1984 | 168.9 mm (6.6 in) |
| 1985 | 103.4 mm (4.1 in) |
| 1986 | 97.0 mm (3.8 in) |
| 1987 | 140.4 mm (5.5 in) |
| 1988 | 123.6 mm (4.9 in) |
| 1989 | 146.3 mm (5.8 in) |
| 1990 | 128.5 mm (5.1 in) |
| 1991 | 164.5 mm (6.5 in) |
| 1992 | 117.1 mm (4.6 in) |
| 1993 | 94.5 mm (3.7 in) |
| 1994 | 95.3 mm (3.8 in) |
| 1995 | 84.5 mm (3.3 in) |
| 1996 | 119.7 mm (4.7 in) |
| 1997 | 96.6 mm (3.8 in) |
| 1998 | 188.0 mm (7.4 in) |
| 1999 | 109.2 mm (4.3 in) |
| 2000 | 101.3 mm (4.0 in) |
| 2001 | 115.1 mm (4.5 in) |
| 2002 | 107.8 mm (4.2 in) |
| 2003 | 101.6 mm (4.0 in) |
| 2004 | 142.2 mm (5.6 in) |
| 2005 | 223.0 mm (8.8 in) |
| 2006 | 140.3 mm (5.5 in) |
| 2007 | 143.0 mm (5.6 in) |
| 2008 | 135.7 mm (5.3 in) |
| 2009 | 138.6 mm (5.5 in) |
| 2010 | 233.4 mm (9.2 in) |
| 2011 | 120.1 mm (4.7 in) |
| 2012 | 100.1 mm (3.9 in) |
| 2013 | 155.5 mm (6.1 in) |
| 2014 | 145.2 mm (5.7 in) |
| 2015 | 87.6 mm (3.4 in) |
| 2016 | 64.0 mm (2.5 in) |
| 2017 | 144.3 mm (5.7 in) |
| 2018 | 136.6 mm (5.4 in) |
| 2019 | 111.8 mm (4.4 in) |
| 2020 | 91.5 mm (3.6 in) |
| 2021 | 162.5 mm (6.4 in) |
| 2022 | 174.5 mm (6.9 in) |
| 2023 | 115.8 mm (4.6 in) |
| 2024 | 150.9 mm (5.9 in) |
| 2025 | 90.4 mm (3.6 in) |
| 2026 | 86.6 mm (3.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1956 | 20 days |
| 1957 | 26 days |
| 1958 | 20 days |
| 1959 | 14 days |
| 1960 | 19 days |
| 1961 | 15 days |
| 1962 | 18 days |
| 1963 | 28 days |
| 1964 | 17 days |
| 1965 | 23 days |
| 1966 | 26 days |
| 1967 | 18 days |
| 1968 | 21 days |
| 1969 | 23 days |
| 1970 | 13 days |
| 1971 | 16 days |
| 1972 | 12 days |
| 1973 | 20 days |
| 1974 | 16 days |
| 1975 | 15 days |
| 1976 | 18 days |
| 1977 | 17 days |
| 1978 | 23 days |
| 1979 | 15 days |
| 1980 | 24 days |
| 1981 | 26 days |
| 1982 | 20 days |
| 1983 | 22 days |
| 1984 | 19 days |
| 1985 | 16 days |
| 1986 | 13 days |
| 1987 | 18 days |
| 1988 | 16 days |
| 1989 | 16 days |
| 1990 | 10 days |
| 1991 | 12 days |
| 1992 | 13 days |
| 1993 | 11 days |
| 1994 | 16 days |
| 1995 | 37 days |
| 1996 | 11 days |
| 1997 | 15 days |
| 1998 | 13 days |
| 1999 | 37 days |
| 2000 | 11 days |
| 2001 | 29 days |
| 2002 | 16 days |
| 2003 | 19 days |
| 2004 | 25 days |
| 2005 | 15 days |
| 2006 | 19 days |
| 2007 | 19 days |
| 2008 | 16 days |
| 2009 | 17 days |
| 2010 | 13 days |
| 2011 | 11 days |
| 2012 | 24 days |
| 2013 | 23 days |
| 2014 | 18 days |
| 2015 | 20 days |
| 2016 | 16 days |
| 2017 | 12 days |
| 2018 | 15 days |
| 2019 | 14 days |
| 2020 | 18 days |
| 2021 | 18 days |
| 2022 | 10 days |
| 2023 | 15 days |
| 2024 | 33 days |
| 2025 | 16 days |
| 2026 | 10 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
49 years with a frostAcross 49 years with a frost, the median last spring frost at Norwich Public Utility Plt falls on 20 April and the median first autumn frost on 15 October, which leaves a median of 176 days between them.
Fitted over all years, the growing season changes by +7.4 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1987 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 20 April | n/a | 14 April | n/a | -3.6 days per decade |
| First autumn frost | 15 October | n/a | 21 October | n/a | +3.8 days per decade |
| Growing days | 176 days | n/a | 191 days | n/a | +7.4 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
64 years, 1957 to 2025A day with at least 81.5 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 178.3 mm (7.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 81.5 mm (3.2 in) | |
| 5 years | 107.1 mm (4.2 in) | |
| 10 years | 124.1 mm (4.9 in) | |
| 25 years | 145.9 mm (5.7 in) | |
| 50 years | 162.1 mm (6.4 in) | |
| 100 years | 178.3 mm (7.0 in) | Longer than the 64 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, 64 years of values from 1957 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: 161.0 mm (6.3 in) in 2021; 157.0 mm (6.2 in) in 2005; 155.2 mm (6.1 in) in 1982.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2007 to 2025 against 1961 to 1990Over 2007 to 2025, Norwich Public Utility Plt had a mean temperature of 11.5 C (52.7 F) and 1,163.0 mm (45.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Mineola (United States, 157 km away), Chatsworth (United States, 282 km away) and Toms River (United States, 252 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Mineola | United States | 157 km (98 mi) | 11.5 C (52.7 F) | 1,087.9 mm (42.8 in) | 0.58 |
| Chatsworth | United States | 282 km (175 mi) | 11.7 C (53.1 F) | 1,136.0 mm (44.7 in) | 0.60 |
| Toms River | United States | 252 km (157 mi) | 11.3 C (52.4 F) | 1,194.0 mm (47.0 in) | 0.61 |
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-16).