Surry Mtn Lake Weather Records (USC00278539)
Record envelope, standing records and threshold days for Surry Mtn Lake (USC00278539), New Hampshire, United States, with 79 years of record.
Key Facts for Surry Mtn Lake
- Surry Mtn Lake (USC00278539) is a weather station in New Hampshire, United States at 43.00 latitude and -72.31 longitude, 171 m (560 ft) above sea level.
- The station reports from 1948 to 2026, 79 years of record.
- 1,464 records set at Surry Mtn Lake still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Surry Mtn Lake tied a daily record high minimum temperature of 13.3 C (55.9 F) on 2 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: New Hampshire, United States, 43.00 latitude, -72.31 longitude.
- Elevation: 171 m (560 ft).
- Period of record: 1948 to 2026, 79 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
2 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 17.8 C (64.0 F) | -34.4 C (-29.9 F) | 6.1 C (43.0 F) | -25.6 C (-14.1 F) |
| Feb | 21.7 C (71.1 F) | -35.0 C (-31.0 F) | 6.7 C (44.1 F) | -20.6 C (-5.1 F) |
| Mar | 27.2 C (81.0 F) | -30.0 C (-22.0 F) | 21.7 C (71.1 F) | -17.8 C (0.0 F) |
| Apr | 33.3 C (91.9 F) | -15.6 C (3.9 F) | 27.2 C (81.0 F) | -5.6 C (21.9 F) |
| May | 34.4 C (93.9 F) | -6.7 C (19.9 F) | 32.8 C (91.0 F) | -0.6 C (30.9 F) |
| Jun | 36.1 C (97.0 F) | -1.1 C (30.0 F) | 31.1 C (88.0 F) | 3.3 C (37.9 F) |
| Jul | 36.7 C (98.1 F) | 2.8 C (37.0 F) | 33.3 C (91.9 F) | 8.9 C (48.0 F) |
| Aug | 37.8 C (100.0 F) | 0.0 C (32.0 F) | 31.1 C (88.0 F) | 8.9 C (48.0 F) |
| Sep | 36.1 C (97.0 F) | -5.6 C (21.9 F) | 26.7 C (80.1 F) | 3.3 C (37.9 F) |
| Oct | 31.1 C (88.0 F) | -11.1 C (12.0 F) | 20.6 C (69.1 F) | -1.7 C (28.9 F) |
| Nov | 26.1 C (79.0 F) | -17.8 C (0.0 F) | n/a | n/a |
| Dec | 19.4 C (66.9 F) | -31.7 C (-25.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 26 |
| 1949 | 62 |
| 1950 | 39 |
| 1951 | 42 |
| 1952 | 20 |
| 1953 | 43 |
| 1954 | 30 |
| 1955 | 32 |
| 1956 | 62 |
| 1957 | 45 |
| 1958 | 23 |
| 1959 | 35 |
| 1960 | 14 |
| 1961 | 40 |
| 1962 | 21 |
| 1963 | 37 |
| 1964 | 33 |
| 1965 | 29 |
| 1966 | 27 |
| 1967 | 33 |
| 1968 | 25 |
| 1969 | 23 |
| 1970 | 19 |
| 1971 | 24 |
| 1972 | 28 |
| 1973 | 14 |
| 1974 | 25 |
| 1975 | 11 |
| 1976 | 40 |
| 1977 | 23 |
| 1978 | 13 |
| 1979 | 49 |
| 1980 | 10 |
| 1981 | 23 |
| 1982 | 30 |
| 1983 | 16 |
| 1984 | 21 |
| 1985 | 8 |
| 1986 | 19 |
| 1987 | 29 |
| 1988 | 23 |
| 1989 | 30 |
| 1990 | 16 |
| 1991 | 10 |
| 2007 | 10 |
| 2008 | 6 |
| 2011 | 15 |
| 2012 | 16 |
| 2013 | 12 |
| 2014 | 16 |
| 2015 | 18 |
| 2016 | 22 |
| 2017 | 28 |
| 2018 | 15 |
| 2019 | 6 |
| 2020 | 13 |
| 2021 | 18 |
| 2022 | 6 |
| 2023 | 10 |
| 2024 | 14 |
| 2025 | 10 |
| 2026 | 7 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1980-12-26 | Record low maximum temperature | Record low maximum temperature -21.7 C (-7.1 F) |
| 2012-05-30 | Record daily precipitation | Record daily precipitation 175.5 mm (6.9 in) |
Wettest Day of Each Month
May: 175.5 mm (6.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 55.9 mm (2.2 in) | 27 January 1986 |
| Feb | 67.6 mm (2.7 in) | 25 February 2016 |
| Mar | 63.5 mm (2.5 in) | 7 March 2011 |
| Apr | 52.6 mm (2.1 in) | 3 April 1970 |
| May | 175.5 mm (6.9 in) | 30 May 2012 |
| Jun | 86.6 mm (3.4 in) | 27 June 2023 |
| Jul | 99.1 mm (3.9 in) | 30 July 2021 |
| Aug | 122.2 mm (4.8 in) | 14 August 2016 |
| Sep | 94.0 mm (3.7 in) | 30 September 2015 |
| Oct | 83.8 mm (3.3 in) | 7 October 1962 |
| Nov | 85.3 mm (3.4 in) | 26 November 1950 |
| Dec | 67.1 mm (2.6 in) | 1 December 2020 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 153 | 42% | No |
| 1949 | 365 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 364 | 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 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 362 | 99% | Yes |
| 1990 | 318 | 87% | No |
| 1991 | 96 | 26% | No |
| 2007 | 219 | 60% | No |
| 2008 | 91 | 25% | No |
| 2011 | 245 | 67% | No |
| 2012 | 245 | 67% | No |
| 2013 | 242 | 66% | No |
| 2014 | 246 | 67% | No |
| 2015 | 249 | 68% | No |
| 2016 | 243 | 66% | No |
| 2017 | 244 | 67% | No |
| 2018 | 235 | 64% | No |
| 2019 | 240 | 66% | No |
| 2020 | 224 | 61% | No |
| 2021 | 235 | 64% | No |
| 2022 | 244 | 67% | No |
| 2023 | 232 | 64% | No |
| 2024 | 229 | 63% | No |
| 2025 | 218 | 60% | No |
| 2026 | 200 | 55% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 2 October 2026 | Surry Mtn Lake, US | daily high min (Tie, Provisional) | 13.3 C (55.9 F) | tie | 43 years | 4 of 100 (Routine) |
| 8 August 2026 | Surry Mtn Lake, US | daily high min | 20.6 C (69.1 F) | 0.6 C (1.1 F) | 8 years | 10 of 100 (Routine) |
| 8 July 2026 | Surry Mtn Lake, US | daily low max | 19.4 C (66.9 F) | 0.6 C (1.1 F) | 41 years | 20 of 100 (Routine) |
| 4 July 2026 | Surry Mtn Lake, US | daily high min (Tie) | 20.0 C (68.0 F) | tie | 12 years | 2 of 100 (Routine) |
| 12 June 2026 | Surry Mtn Lake, US | daily high min | 20.0 C (68.0 F) | 2.8 C (5.0 F) | 64 years | 32 of 100 (Routine) |
| 25 May 2026 | Surry Mtn Lake, US | daily low max (Tie) | 11.7 C (53.1 F) | tie | 44 years | 5 of 100 (Routine) |
| 15 May 2026 | Surry Mtn Lake, US | daily rain | 26.7 mm (1.1 in) | 1.3 mm (0.05 in) | 61 years | 26 of 100 (Routine) |
| 7 May 2026 | Surry Mtn Lake, US | daily rain | 13.2 mm (0.5 in) | 1.3 mm (0.05 in) | 40 years | 20 of 100 (Routine) |
| 17 April 2026 | Surry Mtn Lake, US | daily high min | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 13 years | 12 of 100 (Routine) |
| 16 April 2026 | Surry Mtn Lake, US | daily high min | 10.6 C (51.1 F) | 3.4 C (6.1 F) | 49 years | 28 of 100 (Routine) |
| 15 April 2026 | Surry Mtn Lake, US | daily high max | 26.7 C (80.1 F) | 1.1 C (2.0 F) | 57 years | 25 of 100 (Routine) |
| 15 April 2026 | Surry Mtn Lake, US | daily high min (Tie) | 8.3 C (46.9 F) | tie | 65 years | 6 of 100 (Routine) |
| 1 April 2026 | Surry Mtn Lake, US | daily high min (Tie) | 5.6 C (42.1 F) | tie | 52 years | 5 of 100 (Routine) |
| 11 March 2026 | Surry Mtn Lake, US | daily high max | 21.7 C (71.1 F) | 3.4 C (6.1 F) | 48 years | 27 of 100 (Routine) |
| 26 January 2026 | Surry Mtn Lake, US | daily snowfall | 25.4 cm (10.0 in) | 10.2 cm (4.0 in) | 38 years | 35 of 100 (Notable) |
| 3 December 2025 | Surry Mtn Lake, US | daily snowfall | 15.2 cm (6.0 in) | 5.0 cm (2.0 in) | 18 years | 20 of 100 (Routine) |
| 22 October 2025 | Surry Mtn Lake, US | daily rain | 16.5 mm (0.6 in) | 1.3 mm (0.05 in) | 36 years | 19 of 100 (Routine) |
| 8 October 2025 | Surry Mtn Lake, US | daily high min | 15.0 C (59.0 F) | 1.1 C (2.0 F) | 48 years | 23 of 100 (Routine) |
| 7 October 2025 | Surry Mtn Lake, US | daily high max | 28.3 C (82.9 F) | 1.6 C (2.9 F) | 62 years | 28 of 100 (Routine) |
| 26 September 2025 | Surry Mtn Lake, US | daily rain | 65.5 mm (2.6 in) | 30.7 mm (1.2 in) | 7 years | 32 of 100 (Routine) |
Climate Trend
41 complete years, 1949 to 1989| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1949 | 9.1 C | +2.22 C |
| 1950 | 7.8 C | +0.94 C |
| 1951 | 8.0 C | +1.12 C |
| 1952 | 7.8 C | +0.95 C |
| 1953 | 8.3 C | +1.42 C |
| 1954 | 7.1 C | +0.24 C |
| 1955 | 7.3 C | +0.43 C |
| 1956 | 6.6 C | -0.21 C |
| 1957 | 7.6 C | +0.77 C |
| 1958 | 6.3 C | -0.55 C |
| 1959 | 7.6 C | +0.73 C |
| 1960 | 6.8 C | -0.04 C |
| 1961 | 7.0 C | +0.20 C |
| 1962 | 6.0 C | -0.81 C |
| 1963 | 6.2 C | -0.68 C |
| 1964 | 6.6 C | -0.21 C |
| 1965 | 6.3 C | -0.57 C |
| 1966 | 6.4 C | -0.46 C |
| 1967 | 6.1 C | -0.70 C |
| 1968 | 6.4 C | -0.43 C |
| 1969 | 6.8 C | +0.00 C |
| 1970 | 6.4 C | -0.46 C |
| 1971 | 6.3 C | -0.57 C |
| 1972 | 5.8 C | -1.07 C |
| 1973 | 7.6 C | +0.73 C |
| 1974 | 6.6 C | -0.28 C |
| 1975 | 7.0 C | +0.21 C |
| 1976 | 6.5 C | -0.34 C |
| 1977 | 6.8 C | -0.04 C |
| 1978 | 6.1 C | -0.72 C |
| 1979 | 7.5 C | +0.65 C |
| 1980 | 6.5 C | -0.32 C |
| 1981 | 6.9 C | +0.08 C |
| 1982 | 6.2 C | -0.66 C |
| 1983 | 7.3 C | +0.50 C |
| 1984 | 6.8 C | -0.03 C |
| 1985 | 6.2 C | -0.60 C |
| 1986 | 6.5 C | -0.31 C |
| 1987 | 6.6 C | -0.21 C |
| 1988 | 6.3 C | -0.54 C |
| 1989 | 6.3 C | -0.51 C |
The annual mean temperature here has fallen by 0.3 C (0.1 to 0.5) per decade over 1949 to 1989. In Fahrenheit: 0.5 F (0.3 to 0.8) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.3 C (-0.5 to -0.1) per decade | -0.5 F (-0.8 to -0.3) per decade | 1949 to 1989 | 41 | Fall |
| Mean daily maximum | -0.4 C (-0.6 to -0.2) per decade | -0.7 F (-1.0 to -0.3) per decade | 1949 to 1989 | 41 | Fall |
| Mean daily minimum | -0.2 C (-0.4 to -0.1) per decade | -0.4 F (-0.7 to -0.1) per decade | 1949 to 1989 | 41 | Fall |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1948 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.8 C (100.0 F) | 1948 | 33.3 C (91.9 F) | 62 |
| Coldest night (TNn) | -35.0 C (-31.0 F) | 1958 | -27.8 C (-18.0 F) | 62 |
| Wettest day (Rx1day) | 175.5 mm (6.9 in) | 2012 | 55.5 mm (2.2 in) | 62 |
| Wettest five days (Rx5day) | 221.0 mm (8.7 in) | 2012 | 83.4 mm (3.3 in) | 62 |
| Longest dry spell (CDD) | 26 days | 1953 | 15 days | 62 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 37.8 C (100.0 F) |
| 1949 | 36.7 C (98.1 F) |
| 1950 | 32.8 C (91.0 F) |
| 1951 | 32.2 C (90.0 F) |
| 1952 | 35.6 C (96.1 F) |
| 1953 | 36.7 C (98.1 F) |
| 1954 | 32.8 C (91.0 F) |
| 1955 | 37.2 C (99.0 F) |
| 1956 | 36.1 C (97.0 F) |
| 1957 | 35.0 C (95.0 F) |
| 1958 | 33.3 C (91.9 F) |
| 1959 | 35.0 C (95.0 F) |
| 1960 | 32.2 C (90.0 F) |
| 1961 | 32.8 C (91.0 F) |
| 1962 | 33.9 C (93.0 F) |
| 1963 | 35.6 C (96.1 F) |
| 1964 | 35.0 C (95.0 F) |
| 1965 | 33.9 C (93.0 F) |
| 1966 | 35.0 C (95.0 F) |
| 1967 | 32.8 C (91.0 F) |
| 1968 | 33.9 C (93.0 F) |
| 1969 | 32.8 C (91.0 F) |
| 1970 | 32.8 C (91.0 F) |
| 1971 | 33.3 C (91.9 F) |
| 1972 | 31.7 C (89.1 F) |
| 1973 | 33.3 C (91.9 F) |
| 1974 | 32.2 C (90.0 F) |
| 1975 | 34.4 C (93.9 F) |
| 1976 | 33.3 C (91.9 F) |
| 1977 | 35.6 C (96.1 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 33.3 C (91.9 F) |
| 1980 | 33.3 C (91.9 F) |
| 1981 | 32.8 C (91.0 F) |
| 1982 | 32.8 C (91.0 F) |
| 1983 | 33.9 C (93.0 F) |
| 1984 | 33.9 C (93.0 F) |
| 1985 | 32.2 C (90.0 F) |
| 1986 | 32.8 C (91.0 F) |
| 1987 | 32.8 C (91.0 F) |
| 1988 | 35.6 C (96.1 F) |
| 1989 | 32.8 C (91.0 F) |
| 1990 | 32.2 C (90.0 F) |
| 1991 | 33.3 C (91.9 F) |
| 2007 | 33.3 C (91.9 F) |
| 2008 | 28.9 C (84.0 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 33.9 C (93.0 F) |
| 2013 | 34.4 C (93.9 F) |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 32.2 C (90.0 F) |
| 2016 | 33.9 C (93.0 F) |
| 2017 | 34.4 C (93.9 F) |
| 2018 | 33.9 C (93.0 F) |
| 2019 | 32.8 C (91.0 F) |
| 2020 | 33.3 C (91.9 F) |
| 2021 | 33.3 C (91.9 F) |
| 2022 | 33.9 C (93.0 F) |
| 2023 | 32.2 C (90.0 F) |
| 2024 | 33.3 C (91.9 F) |
| 2025 | 35.0 C (95.0 F) |
| 2026 | 33.3 C (91.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -24.4 C (-11.9 F) |
| 1949 | -26.7 C (-16.1 F) |
| 1950 | -30.0 C (-22.0 F) |
| 1951 | -30.0 C (-22.0 F) |
| 1952 | -21.7 C (-7.1 F) |
| 1953 | -20.6 C (-5.1 F) |
| 1954 | -31.7 C (-25.1 F) |
| 1955 | -27.2 C (-17.0 F) |
| 1956 | -26.1 C (-15.0 F) |
| 1957 | -34.4 C (-29.9 F) |
| 1958 | -35.0 C (-31.0 F) |
| 1959 | -28.3 C (-18.9 F) |
| 1960 | -27.2 C (-17.0 F) |
| 1961 | -33.3 C (-27.9 F) |
| 1962 | -26.7 C (-16.1 F) |
| 1963 | -30.0 C (-22.0 F) |
| 1964 | -31.1 C (-24.0 F) |
| 1965 | -28.9 C (-20.0 F) |
| 1966 | -27.8 C (-18.0 F) |
| 1967 | -30.6 C (-23.1 F) |
| 1968 | -32.8 C (-27.0 F) |
| 1969 | -26.1 C (-15.0 F) |
| 1970 | -28.3 C (-18.9 F) |
| 1971 | -32.8 C (-27.0 F) |
| 1972 | -28.9 C (-20.0 F) |
| 1973 | -26.1 C (-15.0 F) |
| 1974 | -27.8 C (-18.0 F) |
| 1975 | -28.9 C (-20.0 F) |
| 1976 | -30.0 C (-22.0 F) |
| 1977 | -29.4 C (-20.9 F) |
| 1978 | -26.1 C (-15.0 F) |
| 1979 | -31.1 C (-24.0 F) |
| 1980 | -31.7 C (-25.1 F) |
| 1981 | -32.2 C (-26.0 F) |
| 1982 | -32.2 C (-26.0 F) |
| 1983 | -26.1 C (-15.0 F) |
| 1984 | -32.8 C (-27.0 F) |
| 1985 | -27.8 C (-18.0 F) |
| 1986 | -27.8 C (-18.0 F) |
| 1987 | -28.9 C (-20.0 F) |
| 1988 | -31.1 C (-24.0 F) |
| 1989 | -28.9 C (-20.0 F) |
| 1990 | -23.3 C (-9.9 F) |
| 1991 | -25.0 C (-13.0 F) |
| 2007 | -23.9 C (-11.0 F) |
| 2008 | -25.6 C (-14.1 F) |
| 2011 | -28.3 C (-18.9 F) |
| 2012 | -16.7 C (1.9 F) |
| 2013 | -22.8 C (-9.0 F) |
| 2014 | -22.8 C (-9.0 F) |
| 2015 | -28.9 C (-20.0 F) |
| 2016 | -23.3 C (-9.9 F) |
| 2017 | -23.3 C (-9.9 F) |
| 2018 | -27.2 C (-17.0 F) |
| 2019 | -22.8 C (-9.0 F) |
| 2020 | -20.0 C (-4.0 F) |
| 2021 | -18.3 C (-0.9 F) |
| 2022 | -23.3 C (-9.9 F) |
| 2023 | -27.2 C (-17.0 F) |
| 2024 | -17.8 C (0.0 F) |
| 2025 | -25.6 C (-14.1 F) |
| 2026 | -25.6 C (-14.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 51.6 mm (2.0 in) |
| 1949 | 42.4 mm (1.7 in) |
| 1950 | 85.3 mm (3.4 in) |
| 1951 | 55.9 mm (2.2 in) |
| 1952 | 48.8 mm (1.9 in) |
| 1953 | 51.6 mm (2.0 in) |
| 1954 | 77.2 mm (3.0 in) |
| 1955 | 57.9 mm (2.3 in) |
| 1956 | 30.5 mm (1.2 in) |
| 1957 | 37.8 mm (1.5 in) |
| 1958 | 43.7 mm (1.7 in) |
| 1959 | 74.7 mm (2.9 in) |
| 1960 | 62.2 mm (2.4 in) |
| 1961 | 34.3 mm (1.4 in) |
| 1962 | 83.8 mm (3.3 in) |
| 1963 | 45.7 mm (1.8 in) |
| 1964 | 39.4 mm (1.6 in) |
| 1965 | 46.5 mm (1.8 in) |
| 1966 | 56.6 mm (2.2 in) |
| 1967 | 41.1 mm (1.6 in) |
| 1968 | 37.1 mm (1.5 in) |
| 1969 | 47.8 mm (1.9 in) |
| 1970 | 52.6 mm (2.1 in) |
| 1971 | 47.0 mm (1.9 in) |
| 1972 | 55.1 mm (2.2 in) |
| 1973 | 91.9 mm (3.6 in) |
| 1974 | 54.4 mm (2.1 in) |
| 1975 | 62.2 mm (2.4 in) |
| 1976 | 43.4 mm (1.7 in) |
| 1977 | 42.4 mm (1.7 in) |
| 1978 | 54.6 mm (2.1 in) |
| 1979 | 65.5 mm (2.6 in) |
| 1980 | 50.8 mm (2.0 in) |
| 1981 | 50.3 mm (2.0 in) |
| 1982 | 42.4 mm (1.7 in) |
| 1983 | 44.5 mm (1.8 in) |
| 1984 | 89.9 mm (3.5 in) |
| 1985 | 39.4 mm (1.6 in) |
| 1986 | 58.4 mm (2.3 in) |
| 1987 | 70.1 mm (2.8 in) |
| 1988 | 45.2 mm (1.8 in) |
| 1989 | 63.5 mm (2.5 in) |
| 1990 | 90.9 mm (3.6 in) |
| 1991 | 44.2 mm (1.7 in) |
| 2007 | 64.3 mm (2.5 in) |
| 2008 | 45.2 mm (1.8 in) |
| 2011 | 69.8 mm (2.7 in) |
| 2012 | 175.5 mm (6.9 in) |
| 2013 | 68.8 mm (2.7 in) |
| 2014 | 75.7 mm (3.0 in) |
| 2015 | 94.0 mm (3.7 in) |
| 2016 | 122.2 mm (4.8 in) |
| 2017 | 101.6 mm (4.0 in) |
| 2018 | 66.3 mm (2.6 in) |
| 2019 | 59.4 mm (2.3 in) |
| 2020 | 78.5 mm (3.1 in) |
| 2021 | 99.1 mm (3.9 in) |
| 2022 | 59.7 mm (2.4 in) |
| 2023 | 86.6 mm (3.4 in) |
| 2024 | 41.1 mm (1.6 in) |
| 2025 | 65.5 mm (2.6 in) |
| 2026 | 50.0 mm (2.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 67.3 mm (2.6 in) |
| 1949 | 66.5 mm (2.6 in) |
| 1950 | 113.8 mm (4.5 in) |
| 1951 | 78.2 mm (3.1 in) |
| 1952 | 78.7 mm (3.1 in) |
| 1953 | 75.1 mm (3.0 in) |
| 1954 | 105.5 mm (4.2 in) |
| 1955 | 109.2 mm (4.3 in) |
| 1956 | 50.9 mm (2.0 in) |
| 1957 | 58.7 mm (2.3 in) |
| 1958 | 61.5 mm (2.4 in) |
| 1959 | 101.9 mm (4.0 in) |
| 1960 | 119.8 mm (4.7 in) |
| 1961 | 66.2 mm (2.6 in) |
| 1962 | 127.0 mm (5.0 in) |
| 1963 | 59.2 mm (2.3 in) |
| 1964 | 54.7 mm (2.2 in) |
| 1965 | 57.9 mm (2.3 in) |
| 1966 | 66.2 mm (2.6 in) |
| 1967 | 76.7 mm (3.0 in) |
| 1968 | 53.8 mm (2.1 in) |
| 1969 | 100.2 mm (3.9 in) |
| 1970 | 74.9 mm (2.9 in) |
| 1971 | 71.9 mm (2.8 in) |
| 1972 | 69.1 mm (2.7 in) |
| 1973 | 106.1 mm (4.2 in) |
| 1974 | 70.6 mm (2.8 in) |
| 1975 | 104.9 mm (4.1 in) |
| 1976 | 68.5 mm (2.7 in) |
| 1977 | 66.5 mm (2.6 in) |
| 1978 | 87.6 mm (3.4 in) |
| 1979 | 95.5 mm (3.8 in) |
| 1980 | 59.7 mm (2.4 in) |
| 1981 | 76.2 mm (3.0 in) |
| 1982 | 73.3 mm (2.9 in) |
| 1983 | 60.0 mm (2.4 in) |
| 1984 | 196.6 mm (7.7 in) |
| 1985 | 59.5 mm (2.3 in) |
| 1986 | 168.4 mm (6.6 in) |
| 1987 | 103.1 mm (4.1 in) |
| 1988 | 88.2 mm (3.5 in) |
| 1989 | 102.9 mm (4.1 in) |
| 1990 | 207.2 mm (8.2 in) |
| 1991 | 69.3 mm (2.7 in) |
| 2007 | 86.1 mm (3.4 in) |
| 2008 | 81.5 mm (3.2 in) |
| 2011 | 138.6 mm (5.5 in) |
| 2012 | 221.0 mm (8.7 in) |
| 2013 | 105.6 mm (4.2 in) |
| 2014 | 91.5 mm (3.6 in) |
| 2015 | 77.0 mm (3.0 in) |
| 2016 | 135.9 mm (5.4 in) |
| 2017 | 119.2 mm (4.7 in) |
| 2018 | 117.3 mm (4.6 in) |
| 2019 | 84.1 mm (3.3 in) |
| 2020 | 95.0 mm (3.7 in) |
| 2021 | 125.6 mm (4.9 in) |
| 2022 | 71.4 mm (2.8 in) |
| 2023 | 111.8 mm (4.4 in) |
| 2024 | 90.7 mm (3.6 in) |
| 2025 | 84.8 mm (3.3 in) |
| 2026 | 82.8 mm (3.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 17 days |
| 1949 | 20 days |
| 1950 | 23 days |
| 1951 | 12 days |
| 1952 | 25 days |
| 1953 | 26 days |
| 1954 | 18 days |
| 1955 | 14 days |
| 1956 | 15 days |
| 1957 | 18 days |
| 1958 | 20 days |
| 1959 | 11 days |
| 1960 | 15 days |
| 1961 | 13 days |
| 1962 | 13 days |
| 1963 | 23 days |
| 1964 | 26 days |
| 1965 | 15 days |
| 1966 | 15 days |
| 1967 | 14 days |
| 1968 | 17 days |
| 1969 | 16 days |
| 1970 | 14 days |
| 1971 | 15 days |
| 1972 | 16 days |
| 1973 | 14 days |
| 1974 | 12 days |
| 1975 | 15 days |
| 1976 | 20 days |
| 1977 | 16 days |
| 1978 | 17 days |
| 1979 | 12 days |
| 1980 | 23 days |
| 1981 | 12 days |
| 1982 | 21 days |
| 1983 | 19 days |
| 1984 | 22 days |
| 1985 | 18 days |
| 1986 | 13 days |
| 1987 | 19 days |
| 1988 | 14 days |
| 1989 | 13 days |
| 1990 | 12 days |
| 1991 | 12 days |
| 2007 | 11 days |
| 2008 | 16 days |
| 2011 | 10 days |
| 2012 | 19 days |
| 2013 | 11 days |
| 2014 | 9 days |
| 2015 | 13 days |
| 2016 | 13 days |
| 2017 | 11 days |
| 2018 | 14 days |
| 2019 | 10 days |
| 2020 | 12 days |
| 2021 | 17 days |
| 2022 | 10 days |
| 2023 | 12 days |
| 2024 | 17 days |
| 2025 | 15 days |
| 2026 | 9 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
41 years with a frostAcross 41 years with a frost, the median last spring frost at Surry Mtn Lake falls on 20 May and the median first autumn frost on 24 September, which leaves a median of 125 days between them.
Fitted over all years, the growing season changes by +6.5 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1960 to 1989) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 20 May | n/a | 16 May | n/a | -5.4 days per decade |
| First autumn frost | 24 September | n/a | 25 September | n/a | +1.2 days per decade |
| Growing days | 125 days | n/a | 129 days | n/a | +6.5 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
47 years, 1949 to 2024A day with at least 52.4 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 156.3 mm (6.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 52.4 mm (2.1 in) | |
| 5 years | 70.4 mm (2.8 in) | |
| 10 years | 85.5 mm (3.4 in) | |
| 25 years | 109.1 mm (4.3 in) | |
| 50 years | 130.7 mm (5.1 in) | Longer than the 47 years of record |
| 100 years | 156.3 mm (6.2 in) | Longer than the 47 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, 47 years of values from 1949 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: 175.5 mm (6.9 in) in 2012; 99.1 mm (3.9 in) in 2021; 91.9 mm (3.6 in) in 1973.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Surry Mtn Lake, at 1982. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1982 ran 0.2 C (0.4 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1982 | -0.2 | -0.4 | 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.
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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).