Gull Lake Biological STN Weather Records (USC00203504)
Record envelope, standing records and threshold days for Gull Lake Biological STN (USC00203504), Michigan, United States, with 98 years of record.
Key Facts for Gull Lake Biological STN
- Gull Lake Biological STN (USC00203504) is a weather station in Michigan, United States at 42.39 latitude and -85.39 longitude, 282 m (925 ft) above sea level.
- The station reports from 1929 to 2026, 98 years of record.
- 1,464 records set at Gull Lake Biological STN still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Gull Lake Biological STN set a daily record high minimum temperature of 23.3 C (73.9 F) on 2 July 2026.
About the Station
- Location: Michigan, United States, 42.39 latitude, -85.39 longitude.
- Elevation: 282 m (925 ft).
- Period of record: 1929 to 2026, 98 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 | 18.9 C (66.0 F) | -29.4 C (-20.9 F) | 8.3 C (46.9 F) | -22.2 C (-8.0 F) |
| Feb | 21.7 C (71.1 F) | -28.3 C (-18.9 F) | 17.2 C (63.0 F) | -17.2 C (1.0 F) |
| Mar | 30.0 C (86.0 F) | -26.1 C (-15.0 F) | 23.3 C (73.9 F) | -7.8 C (18.0 F) |
| Apr | 31.1 C (88.0 F) | -15.6 C (3.9 F) | 26.7 C (80.1 F) | -5.0 C (23.0 F) |
| May | 34.4 C (93.9 F) | -5.6 C (21.9 F) | 30.0 C (86.0 F) | 1.1 C (34.0 F) |
| Jun | 38.9 C (102.0 F) | -2.2 C (28.0 F) | 33.9 C (93.0 F) | 7.8 C (46.0 F) |
| Jul | 42.2 C (108.0 F) | 4.4 C (39.9 F) | 35.6 C (96.1 F) | 9.4 C (48.9 F) |
| Aug | 39.4 C (102.9 F) | 2.8 C (37.0 F) | 31.1 C (88.0 F) | 8.3 C (46.9 F) |
| Sep | 37.8 C (100.0 F) | -3.9 C (25.0 F) | n/a | n/a |
| Oct | 32.2 C (90.0 F) | -7.8 C (18.0 F) | n/a | n/a |
| Nov | 26.1 C (79.0 F) | -21.7 C (-7.1 F) | n/a | n/a |
| Dec | 20.6 C (69.1 F) | -26.1 C (-15.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1929 | 19 |
| 1930 | 27 |
| 1931 | 34 |
| 1932 | 9 |
| 1933 | 23 |
| 1934 | 37 |
| 1935 | 21 |
| 1936 | 33 |
| 1937 | 13 |
| 1938 | 15 |
| 1939 | 18 |
| 1940 | 37 |
| 1941 | 20 |
| 1942 | 27 |
| 1943 | 25 |
| 1944 | 17 |
| 1945 | 25 |
| 1946 | 15 |
| 1947 | 22 |
| 1948 | 16 |
| 1949 | 22 |
| 1950 | 24 |
| 1951 | 25 |
| 1952 | 17 |
| 1953 | 22 |
| 1954 | 13 |
| 1955 | 9 |
| 1956 | 6 |
| 1957 | 10 |
| 1958 | 13 |
| 1959 | 13 |
| 1960 | 15 |
| 1961 | 6 |
| 1962 | 18 |
| 1963 | 23 |
| 1964 | 28 |
| 1965 | 18 |
| 1966 | 16 |
| 1967 | 13 |
| 1968 | 15 |
| 1969 | 9 |
| 1970 | 14 |
| 1971 | 13 |
| 1972 | 14 |
| 1973 | 4 |
| 1974 | 13 |
| 1975 | 9 |
| 1976 | 14 |
| 1977 | 17 |
| 1978 | 11 |
| 1979 | 18 |
| 1980 | 9 |
| 1981 | 8 |
| 1982 | 17 |
| 1983 | 18 |
| 1984 | 12 |
| 1985 | 5 |
| 1986 | 9 |
| 1987 | 9 |
| 1988 | 11 |
| 1989 | 12 |
| 1990 | 12 |
| 1991 | 19 |
| 1992 | 12 |
| 1993 | 17 |
| 1994 | 16 |
| 1995 | 13 |
| 1996 | 15 |
| 1997 | 16 |
| 1998 | 31 |
| 1999 | 24 |
| 2000 | 24 |
| 2001 | 12 |
| 2002 | 19 |
| 2003 | 5 |
| 2004 | 12 |
| 2007 | 15 |
| 2008 | 14 |
| 2009 | 16 |
| 2010 | 10 |
| 2011 | 13 |
| 2012 | 29 |
| 2013 | 8 |
| 2014 | 14 |
| 2015 | 5 |
| 2016 | 10 |
| 2017 | 10 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 8 |
| 2022 | 8 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 4 |
All-Time Record Progression
7 new records| Date | Kind | Detail |
|---|---|---|
| 1967-01-27 | Record daily snowfall | Record daily snowfall 46.0 cm (18.1 in) |
| 1978-01-27 | Record snow depth | Record snow depth 81.3 cm (32.0 in) |
| 1978-01-28 | Record snow depth | Record snow depth 91.4 cm (36.0 in) |
| 1978-01-29 | Record snow depth | Record snow depth 94.0 cm (37.0 in) |
| 1995-07-14 | Record high minimum temperature | Record high minimum temperature 26.7 C (80.1 F) |
| 2008-09-14 | Record daily precipitation | Record daily precipitation 153.7 mm (6.1 in) |
| 2010-06-01 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
Wettest Day of Each Month
Sep: 153.7 mm (6.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 94.0 mm (3.7 in) | 19 January 1952 |
| Feb | 53.3 mm (2.1 in) | 21 February 1997 |
| Mar | 65.0 mm (2.6 in) | 19 March 1948 |
| Apr | 73.9 mm (2.9 in) | 19 April 1975 |
| May | 81.3 mm (3.2 in) | 31 May 1989 |
| Jun | 91.7 mm (3.6 in) | 26 June 1978 |
| Jul | 106.2 mm (4.2 in) | 3 July 2008 |
| Aug | 138.9 mm (5.5 in) | 19 August 1939 |
| Sep | 153.7 mm (6.1 in) | 14 September 2008 |
| Oct | 77.0 mm (3.0 in) | 5 October 1941 |
| Nov | 59.7 mm (2.4 in) | 5 November 1990 |
| Dec | 49.0 mm (1.9 in) | 31 December 2019 |
Period of Record Coverage
1929 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1929 | 267 | 73% | No |
| 1930 | 311 | 85% | No |
| 1931 | 342 | 94% | Yes |
| 1932 | 319 | 87% | No |
| 1933 | 330 | 90% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 363 | 99% | Yes |
| 1936 | 365 | 100% | Yes |
| 1937 | 363 | 99% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 362 | 99% | Yes |
| 1941 | 363 | 99% | Yes |
| 1942 | 364 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 365 | 100% | Yes |
| 1945 | 364 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 363 | 99% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 364 | 100% | Yes |
| 1952 | 364 | 99% | Yes |
| 1953 | 364 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 358 | 98% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 362 | 99% | Yes |
| 1958 | 361 | 99% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 362 | 99% | Yes |
| 1962 | 363 | 99% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 362 | 99% | Yes |
| 1967 | 347 | 95% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 362 | 99% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 363 | 99% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 332 | 91% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 363 | 99% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 362 | 99% | Yes |
| 1980 | 362 | 99% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 358 | 98% | Yes |
| 1983 | 356 | 98% | Yes |
| 1984 | 361 | 99% | Yes |
| 1985 | 362 | 99% | Yes |
| 1986 | 329 | 90% | Yes |
| 1987 | 323 | 88% | No |
| 1988 | 305 | 83% | No |
| 1989 | 347 | 95% | Yes |
| 1990 | 355 | 97% | Yes |
| 1991 | 358 | 98% | Yes |
| 1992 | 360 | 98% | Yes |
| 1993 | 362 | 99% | Yes |
| 1994 | 359 | 98% | Yes |
| 1995 | 356 | 98% | Yes |
| 1996 | 344 | 94% | Yes |
| 1997 | 352 | 96% | Yes |
| 1998 | 358 | 98% | Yes |
| 1999 | 349 | 96% | Yes |
| 2000 | 347 | 95% | Yes |
| 2001 | 351 | 96% | Yes |
| 2002 | 354 | 97% | Yes |
| 2003 | 359 | 98% | Yes |
| 2004 | 358 | 98% | Yes |
| 2007 | 206 | 56% | No |
| 2008 | 359 | 98% | Yes |
| 2009 | 288 | 79% | No |
| 2010 | 291 | 80% | No |
| 2011 | 282 | 77% | No |
| 2012 | 275 | 75% | No |
| 2013 | 304 | 83% | No |
| 2014 | 276 | 76% | No |
| 2015 | 186 | 51% | No |
| 2016 | 275 | 75% | No |
| 2017 | 293 | 80% | No |
| 2018 | 294 | 81% | No |
| 2019 | 278 | 76% | No |
| 2020 | 208 | 57% | No |
| 2021 | 183 | 50% | No |
| 2022 | 227 | 62% | No |
| 2023 | 234 | 64% | No |
| 2024 | 206 | 56% | No |
| 2025 | 270 | 74% | No |
| 2026 | 164 | 45% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 2 July 2026 | Gull Lake Biological STN, US | daily high min | 23.3 C (73.9 F) | 0.5 C (0.9 F) | 95 years | 38 of 100 (Notable) |
| 1 July 2026 | Gull Lake Biological STN, US | daily high min (Tie) | 23.9 C (75.0 F) | tie | 95 years | 9 of 100 (Routine) |
| 12 June 2026 | Gull Lake Biological STN, US | daily rain | 44.2 mm (1.7 in) | 19.6 mm (0.8 in) | 84 years | 50 of 100 (Notable) |
| 15 April 2026 | Gull Lake Biological STN, US | daily rain | 62.0 mm (2.4 in) | 21.9 mm (0.9 in) | 88 years | 58 of 100 (Notable) |
| 14 April 2026 | Gull Lake Biological STN, US | daily high min | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 65 years | 29 of 100 (Routine) |
| 4 April 2026 | Gull Lake Biological STN, US | daily rain | 44.5 mm (1.8 in) | 3.6 mm (0.14 in) | 23 years | 18 of 100 (Routine) |
| 11 March 2026 | Gull Lake Biological STN, US | daily rain | 16.5 mm (0.6 in) | 3.3 mm (0.13 in) | 68 years | 20 of 100 (Routine) |
| 10 March 2026 | Gull Lake Biological STN, US | daily high max | 21.7 C (71.1 F) | 2.8 C (5.0 F) | 4 years | 14 of 100 (Routine) |
| 26 January 2026 | Gull Lake Biological STN, US | daily low min | -21.7 C (-7.1 F) | 2.3 C (4.1 F) | 96 years | 40 of 100 (Notable) |
| 5 December 2025 | Gull Lake Biological STN, US | daily low min | -13.3 C (8.1 F) | 1.1 C (2.0 F) | 96 years | 38 of 100 (Notable) |
| 30 November 2025 | Gull Lake Biological STN, US | daily snowfall | 22.1 cm (8.7 in) | 8.1 cm (3.2 in) | 64 years | 43 of 100 (Notable) |
| 30 November 2025 | Gull Lake Biological STN, US | daily snow depth (Tie) | 25.4 cm (10.0 in) | tie | 75 years | 7 of 100 (Routine) |
| 19 October 2025 | Gull Lake Biological STN, US | daily rain | 63.5 mm (2.5 in) | 12.4 mm (0.5 in) | 40 years | 32 of 100 (Routine) |
| 5 October 2025 | Gull Lake Biological STN, US | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 79 years | 33 of 100 (Routine) |
| 4 October 2025 | Gull Lake Biological STN, US | daily high max (Tie) | 30.0 C (86.0 F) | tie | 74 years | 7 of 100 (Routine) |
| 28 September 2025 | Gull Lake Biological STN, US | daily high max (Tie) | 29.4 C (84.9 F) | tie | 26 years | 4 of 100 (Routine) |
| 22 September 2025 | Gull Lake Biological STN, US | daily rain | 68.8 mm (2.7 in) | 34.3 mm (1.4 in) | 60 years | 53 of 100 (Notable) |
| 31 August 2025 | Gull Lake Biological STN, US | daily low min (Tie) | 6.1 C (43.0 F) | tie | 94 years | 9 of 100 (Routine) |
| 25 July 2025 | Gull Lake Biological STN, US | daily rain | 33.5 mm (1.3 in) | 8.6 mm (0.34 in) | 39 years | 26 of 100 (Routine) |
| 7 July 2025 | Gull Lake Biological STN, US | daily rain | 38.1 mm (1.5 in) | 0.8 mm (0.03 in) | 70 years | 30 of 100 (Routine) |
Climate Trend
69 complete years, 1934 to 2008| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1934 | 9.9 C | +0.53 C |
| 1935 | 8.6 C | -0.78 C |
| 1936 | 8.6 C | -0.74 C |
| 1937 | 8.6 C | -0.79 C |
| 1938 | 10.0 C | +0.60 C |
| 1939 | 9.1 C | -0.27 C |
| 1940 | 6.9 C | -2.53 C |
| 1941 | 8.9 C | -0.49 C |
| 1942 | 8.8 C | -0.60 C |
| 1943 | 8.1 C | -1.31 C |
| 1944 | 9.3 C | -0.12 C |
| 1945 | 8.7 C | -0.73 C |
| 1946 | 10.3 C | +0.93 C |
| 1947 | 8.9 C | -0.52 C |
| 1948 | 9.3 C | -0.10 C |
| 1949 | 10.4 C | +0.98 C |
| 1950 | 8.5 C | -0.93 C |
| 1951 | 8.5 C | -0.92 C |
| 1952 | 9.4 C | +0.05 C |
| 1953 | 10.5 C | +1.11 C |
| 1954 | 9.7 C | +0.28 C |
| 1955 | 10.0 C | +0.66 C |
| 1956 | 9.5 C | +0.09 C |
| 1957 | 9.3 C | -0.08 C |
| 1958 | 8.6 C | -0.79 C |
| 1959 | 9.5 C | +0.16 C |
| 1960 | 8.8 C | -0.58 C |
| 1961 | 9.3 C | -0.12 C |
| 1962 | 8.7 C | -0.69 C |
| 1963 | 8.5 C | -0.86 C |
| 1964 | 9.2 C | -0.18 C |
| 1965 | 9.3 C | -0.12 C |
| 1966 | 8.9 C | -0.50 C |
| 1967 | 8.7 C | -0.65 C |
| 1968 | 9.3 C | -0.08 C |
| 1969 | 9.1 C | -0.26 C |
| 1970 | 9.1 C | -0.31 C |
| 1971 | 9.6 C | +0.20 C |
| 1972 | 8.5 C | -0.91 C |
| 1974 | 9.4 C | -0.02 C |
| 1975 | 9.8 C | +0.39 C |
| 1976 | 8.8 C | -0.56 C |
| 1977 | 9.5 C | +0.14 C |
| 1978 | 8.4 C | -1.03 C |
| 1979 | 8.7 C | -0.72 C |
| 1980 | 8.9 C | -0.49 C |
| 1981 | 9.3 C | -0.09 C |
| 1982 | 9.0 C | -0.41 C |
| 1983 | 9.8 C | +0.41 C |
| 1984 | 9.7 C | +0.28 C |
| 1985 | 9.4 C | 0.00 C |
| 1987 | 10.9 C | +1.54 C |
| 1989 | 8.8 C | -0.58 C |
| 1990 | 10.4 C | +1.03 C |
| 1991 | 10.5 C | +1.11 C |
| 1992 | 9.1 C | -0.30 C |
| 1993 | 9.1 C | -0.29 C |
| 1994 | 9.8 C | +0.37 C |
| 1995 | 9.8 C | +0.42 C |
| 1996 | 9.2 C | -0.19 C |
| 1997 | 9.4 C | +0.01 C |
| 1998 | 12.2 C | +2.78 C |
| 1999 | 11.2 C | +1.82 C |
| 2000 | 10.3 C | +0.91 C |
| 2001 | 11.0 C | +1.62 C |
| 2002 | 10.8 C | +1.40 C |
| 2003 | 9.8 C | +0.43 C |
| 2004 | 10.3 C | +0.94 C |
| 2008 | 9.8 C | +0.45 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1934 to 2008. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 69 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 | 1934 to 2008 | 69 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1934 to 2008 | 69 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.2 to 0.5) per decade | 1934 to 2008 | 69 | 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
1929 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 1936 | 35.0 C (95.0 F) | 96 |
| Coldest night (TNn) | -29.4 C (-20.9 F) | 1951 | -22.8 C (-9.0 F) | 96 |
| Wettest day (Rx1day) | 153.7 mm (6.1 in) | 2008 | 54.1 mm (2.1 in) | 96 |
| Wettest five days (Rx5day) | 255.3 mm (10.1 in) | 2008 | 86.5 mm (3.4 in) | 96 |
| Longest dry spell (CDD) | 43 days | 1978 | 17 days | 96 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1929 | 33.3 C (91.9 F) |
| 1930 | 38.3 C (100.9 F) |
| 1931 | 37.8 C (100.0 F) |
| 1932 | 34.4 C (93.9 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 41.7 C (107.1 F) |
| 1935 | 36.1 C (97.0 F) |
| 1936 | 42.2 C (108.0 F) |
| 1937 | 35.0 C (95.0 F) |
| 1938 | 33.3 C (91.9 F) |
| 1939 | 33.9 C (93.0 F) |
| 1940 | 36.1 C (97.0 F) |
| 1941 | 36.1 C (97.0 F) |
| 1942 | 35.6 C (96.1 F) |
| 1943 | 34.4 C (93.9 F) |
| 1944 | 38.9 C (102.0 F) |
| 1945 | 35.0 C (95.0 F) |
| 1946 | 36.1 C (97.0 F) |
| 1947 | 39.4 C (102.9 F) |
| 1948 | 37.2 C (99.0 F) |
| 1949 | 36.1 C (97.0 F) |
| 1950 | 32.2 C (90.0 F) |
| 1951 | 31.7 C (89.1 F) |
| 1952 | 35.6 C (96.1 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 34.4 C (93.9 F) |
| 1955 | 37.2 C (99.0 F) |
| 1956 | 34.4 C (93.9 F) |
| 1957 | 33.9 C (93.0 F) |
| 1958 | 32.2 C (90.0 F) |
| 1959 | 35.6 C (96.1 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 35.6 C (96.1 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 37.8 C (100.0 F) |
| 1965 | 36.1 C (97.0 F) |
| 1966 | 34.4 C (93.9 F) |
| 1967 | 31.7 C (89.1 F) |
| 1968 | 34.4 C (93.9 F) |
| 1969 | 33.3 C (91.9 F) |
| 1970 | 33.9 C (93.0 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 32.8 C (91.0 F) |
| 1973 | 33.3 C (91.9 F) |
| 1974 | 39.4 C (102.9 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 34.4 C (93.9 F) |
| 1977 | 35.0 C (95.0 F) |
| 1978 | 33.9 C (93.0 F) |
| 1979 | 31.7 C (89.1 F) |
| 1980 | 33.9 C (93.0 F) |
| 1981 | 32.8 C (91.0 F) |
| 1982 | 31.7 C (89.1 F) |
| 1983 | 36.1 C (97.0 F) |
| 1984 | 32.2 C (90.0 F) |
| 1985 | 33.3 C (91.9 F) |
| 1986 | 32.8 C (91.0 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 37.8 C (100.0 F) |
| 1989 | 33.9 C (93.0 F) |
| 1990 | 33.9 C (93.0 F) |
| 1991 | 35.0 C (95.0 F) |
| 1992 | 33.3 C (91.9 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 36.7 C (98.1 F) |
| 1995 | 37.8 C (100.0 F) |
| 1996 | 40.6 C (105.1 F) |
| 1997 | 35.6 C (96.1 F) |
| 1998 | 36.7 C (98.1 F) |
| 1999 | 38.3 C (100.9 F) |
| 2000 | 33.9 C (93.0 F) |
| 2001 | 36.7 C (98.1 F) |
| 2002 | 37.2 C (99.0 F) |
| 2003 | 36.1 C (97.0 F) |
| 2004 | 32.8 C (91.0 F) |
| 2007 | 37.8 C (100.0 F) |
| 2008 | 35.0 C (95.0 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 35.0 C (95.0 F) |
| 2011 | 35.0 C (95.0 F) |
| 2012 | 40.6 C (105.1 F) |
| 2013 | 35.6 C (96.1 F) |
| 2014 | 32.2 C (90.0 F) |
| 2015 | 32.8 C (91.0 F) |
| 2016 | 33.3 C (91.9 F) |
| 2017 | 33.9 C (93.0 F) |
| 2018 | 33.9 C (93.0 F) |
| 2019 | 32.8 C (91.0 F) |
| 2020 | 33.9 C (93.0 F) |
| 2021 | 32.8 C (91.0 F) |
| 2022 | 34.4 C (93.9 F) |
| 2023 | 33.9 C (93.0 F) |
| 2024 | 33.3 C (91.9 F) |
| 2025 | 35.6 C (96.1 F) |
| 2026 | 35.6 C (96.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1929 | -18.9 C (-2.0 F) |
| 1930 | -26.1 C (-15.0 F) |
| 1931 | -18.3 C (-0.9 F) |
| 1932 | -20.0 C (-4.0 F) |
| 1933 | -26.1 C (-15.0 F) |
| 1934 | -27.8 C (-18.0 F) |
| 1935 | -23.3 C (-9.9 F) |
| 1936 | -26.1 C (-15.0 F) |
| 1937 | -17.8 C (0.0 F) |
| 1938 | -22.8 C (-9.0 F) |
| 1939 | -20.6 C (-5.1 F) |
| 1940 | -26.1 C (-15.0 F) |
| 1941 | -19.4 C (-2.9 F) |
| 1942 | -27.8 C (-18.0 F) |
| 1943 | -27.8 C (-18.0 F) |
| 1944 | -23.9 C (-11.0 F) |
| 1945 | -20.0 C (-4.0 F) |
| 1946 | -17.8 C (0.0 F) |
| 1947 | -23.3 C (-9.9 F) |
| 1948 | -28.9 C (-20.0 F) |
| 1949 | -20.0 C (-4.0 F) |
| 1950 | -23.3 C (-9.9 F) |
| 1951 | -29.4 C (-20.9 F) |
| 1952 | -15.0 C (5.0 F) |
| 1953 | -17.8 C (0.0 F) |
| 1954 | -18.3 C (-0.9 F) |
| 1955 | -20.0 C (-4.0 F) |
| 1956 | -17.8 C (0.0 F) |
| 1957 | -22.8 C (-9.0 F) |
| 1958 | -23.3 C (-9.9 F) |
| 1959 | -23.9 C (-11.0 F) |
| 1960 | -23.3 C (-9.9 F) |
| 1961 | -26.1 C (-15.0 F) |
| 1962 | -23.9 C (-11.0 F) |
| 1963 | -26.1 C (-15.0 F) |
| 1964 | -24.4 C (-11.9 F) |
| 1965 | -19.4 C (-2.9 F) |
| 1966 | -25.6 C (-14.1 F) |
| 1967 | -25.6 C (-14.1 F) |
| 1968 | -23.9 C (-11.0 F) |
| 1969 | -21.1 C (-6.0 F) |
| 1970 | -24.4 C (-11.9 F) |
| 1971 | -26.1 C (-15.0 F) |
| 1972 | -28.3 C (-18.9 F) |
| 1973 | -25.0 C (-13.0 F) |
| 1974 | -23.3 C (-9.9 F) |
| 1975 | -21.7 C (-7.1 F) |
| 1976 | -26.1 C (-15.0 F) |
| 1977 | -22.8 C (-9.0 F) |
| 1978 | -26.7 C (-16.1 F) |
| 1979 | -26.7 C (-16.1 F) |
| 1980 | -19.4 C (-2.9 F) |
| 1981 | -28.9 C (-20.0 F) |
| 1982 | -23.9 C (-11.0 F) |
| 1983 | -24.4 C (-11.9 F) |
| 1984 | -28.9 C (-20.0 F) |
| 1985 | -25.6 C (-14.1 F) |
| 1986 | -23.3 C (-9.9 F) |
| 1987 | -19.4 C (-2.9 F) |
| 1988 | -18.3 C (-0.9 F) |
| 1989 | -25.0 C (-13.0 F) |
| 1990 | -17.8 C (0.0 F) |
| 1991 | -20.6 C (-5.1 F) |
| 1992 | -19.4 C (-2.9 F) |
| 1993 | -23.9 C (-11.0 F) |
| 1994 | -28.3 C (-18.9 F) |
| 1995 | -20.0 C (-4.0 F) |
| 1996 | -28.3 C (-18.9 F) |
| 1997 | -22.8 C (-9.0 F) |
| 1998 | -16.1 C (3.0 F) |
| 1999 | -23.9 C (-11.0 F) |
| 2000 | -24.4 C (-11.9 F) |
| 2001 | -20.6 C (-5.1 F) |
| 2002 | -19.4 C (-2.9 F) |
| 2003 | -23.3 C (-9.9 F) |
| 2004 | -20.0 C (-4.0 F) |
| 2007 | -25.0 C (-13.0 F) |
| 2008 | -20.0 C (-4.0 F) |
| 2009 | -24.4 C (-11.9 F) |
| 2010 | -20.0 C (-4.0 F) |
| 2011 | -18.9 C (-2.0 F) |
| 2012 | -17.2 C (1.0 F) |
| 2013 | -18.3 C (-0.9 F) |
| 2014 | -27.8 C (-18.0 F) |
| 2015 | -20.0 C (-4.0 F) |
| 2016 | -12.2 C (10.0 F) |
| 2017 | -22.8 C (-9.0 F) |
| 2018 | -18.3 C (-0.9 F) |
| 2019 | -20.0 C (-4.0 F) |
| 2020 | -11.1 C (12.0 F) |
| 2021 | -19.4 C (-2.9 F) |
| 2022 | -15.6 C (3.9 F) |
| 2023 | -12.2 C (10.0 F) |
| 2024 | -17.2 C (1.0 F) |
| 2025 | -17.2 C (1.0 F) |
| 2026 | -22.2 C (-8.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1929 | 51.6 mm (2.0 in) |
| 1930 | 32.5 mm (1.3 in) |
| 1931 | 30.5 mm (1.2 in) |
| 1932 | 51.8 mm (2.0 in) |
| 1933 | 82.3 mm (3.2 in) |
| 1934 | 30.0 mm (1.2 in) |
| 1935 | 63.5 mm (2.5 in) |
| 1936 | 58.4 mm (2.3 in) |
| 1937 | 44.5 mm (1.8 in) |
| 1938 | 46.7 mm (1.8 in) |
| 1939 | 138.9 mm (5.5 in) |
| 1940 | 55.4 mm (2.2 in) |
| 1941 | 77.0 mm (3.0 in) |
| 1942 | 48.5 mm (1.9 in) |
| 1943 | 83.1 mm (3.3 in) |
| 1944 | 41.7 mm (1.6 in) |
| 1945 | 47.2 mm (1.9 in) |
| 1946 | 57.2 mm (2.3 in) |
| 1947 | 71.9 mm (2.8 in) |
| 1948 | 69.3 mm (2.7 in) |
| 1949 | 58.9 mm (2.3 in) |
| 1950 | 81.3 mm (3.2 in) |
| 1951 | 52.8 mm (2.1 in) |
| 1952 | 94.0 mm (3.7 in) |
| 1953 | 43.9 mm (1.7 in) |
| 1954 | 49.5 mm (1.9 in) |
| 1955 | 45.2 mm (1.8 in) |
| 1956 | 48.3 mm (1.9 in) |
| 1957 | 62.2 mm (2.4 in) |
| 1958 | 55.9 mm (2.2 in) |
| 1959 | 71.1 mm (2.8 in) |
| 1960 | 46.5 mm (1.8 in) |
| 1961 | 49.3 mm (1.9 in) |
| 1962 | 51.8 mm (2.0 in) |
| 1963 | 44.5 mm (1.8 in) |
| 1964 | 35.6 mm (1.4 in) |
| 1965 | 52.8 mm (2.1 in) |
| 1966 | 51.1 mm (2.0 in) |
| 1967 | 48.3 mm (1.9 in) |
| 1968 | 58.4 mm (2.3 in) |
| 1969 | 43.2 mm (1.7 in) |
| 1970 | 45.7 mm (1.8 in) |
| 1971 | 40.6 mm (1.6 in) |
| 1972 | 66.8 mm (2.6 in) |
| 1973 | 43.9 mm (1.7 in) |
| 1974 | 40.6 mm (1.6 in) |
| 1975 | 73.9 mm (2.9 in) |
| 1976 | 76.2 mm (3.0 in) |
| 1977 | 40.6 mm (1.6 in) |
| 1978 | 91.7 mm (3.6 in) |
| 1979 | 59.2 mm (2.3 in) |
| 1980 | 52.3 mm (2.1 in) |
| 1981 | 56.9 mm (2.2 in) |
| 1982 | 37.6 mm (1.5 in) |
| 1983 | 55.4 mm (2.2 in) |
| 1984 | 61.5 mm (2.4 in) |
| 1985 | 51.1 mm (2.0 in) |
| 1986 | 89.9 mm (3.5 in) |
| 1987 | 43.2 mm (1.7 in) |
| 1988 | 63.5 mm (2.5 in) |
| 1989 | 100.3 mm (3.9 in) |
| 1990 | 59.7 mm (2.4 in) |
| 1991 | 47.5 mm (1.9 in) |
| 1992 | 41.1 mm (1.6 in) |
| 1993 | 68.6 mm (2.7 in) |
| 1994 | 80.3 mm (3.2 in) |
| 1995 | 63.5 mm (2.5 in) |
| 1996 | 50.8 mm (2.0 in) |
| 1997 | 53.6 mm (2.1 in) |
| 1998 | 35.3 mm (1.4 in) |
| 1999 | 35.3 mm (1.4 in) |
| 2000 | 57.2 mm (2.3 in) |
| 2001 | 57.2 mm (2.3 in) |
| 2002 | 61.0 mm (2.4 in) |
| 2003 | 45.7 mm (1.8 in) |
| 2004 | 40.4 mm (1.6 in) |
| 2007 | 32.5 mm (1.3 in) |
| 2008 | 153.7 mm (6.1 in) |
| 2009 | 62.2 mm (2.4 in) |
| 2010 | 75.4 mm (3.0 in) |
| 2011 | 59.2 mm (2.3 in) |
| 2012 | 61.0 mm (2.4 in) |
| 2013 | 52.1 mm (2.1 in) |
| 2014 | 52.6 mm (2.1 in) |
| 2015 | 76.2 mm (3.0 in) |
| 2016 | 80.5 mm (3.2 in) |
| 2017 | 71.1 mm (2.8 in) |
| 2018 | 69.9 mm (2.8 in) |
| 2019 | 80.0 mm (3.1 in) |
| 2020 | 48.5 mm (1.9 in) |
| 2021 | 53.3 mm (2.1 in) |
| 2022 | 54.6 mm (2.1 in) |
| 2023 | 50.8 mm (2.0 in) |
| 2024 | 51.1 mm (2.0 in) |
| 2025 | 68.8 mm (2.7 in) |
| 2026 | 62.0 mm (2.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1929 | 86.1 mm (3.4 in) |
| 1930 | 45.0 mm (1.8 in) |
| 1931 | 61.2 mm (2.4 in) |
| 1932 | 65.7 mm (2.6 in) |
| 1933 | 108.2 mm (4.3 in) |
| 1934 | 61.8 mm (2.4 in) |
| 1935 | 106.8 mm (4.2 in) |
| 1936 | 70.4 mm (2.8 in) |
| 1937 | 115.6 mm (4.6 in) |
| 1938 | 59.7 mm (2.4 in) |
| 1939 | 146.3 mm (5.8 in) |
| 1940 | 150.5 mm (5.9 in) |
| 1941 | 151.0 mm (5.9 in) |
| 1942 | 79.8 mm (3.1 in) |
| 1943 | 92.2 mm (3.6 in) |
| 1944 | 57.9 mm (2.3 in) |
| 1945 | 94.7 mm (3.7 in) |
| 1946 | 75.3 mm (3.0 in) |
| 1947 | 112.3 mm (4.4 in) |
| 1948 | 97.2 mm (3.8 in) |
| 1949 | 85.3 mm (3.4 in) |
| 1950 | 103.9 mm (4.1 in) |
| 1951 | 77.4 mm (3.0 in) |
| 1952 | 110.7 mm (4.4 in) |
| 1953 | 72.9 mm (2.9 in) |
| 1954 | 94.9 mm (3.7 in) |
| 1955 | 89.4 mm (3.5 in) |
| 1956 | 97.8 mm (3.9 in) |
| 1957 | 76.4 mm (3.0 in) |
| 1958 | 61.7 mm (2.4 in) |
| 1959 | 78.7 mm (3.1 in) |
| 1960 | 94.1 mm (3.7 in) |
| 1961 | 96.8 mm (3.8 in) |
| 1962 | 76.2 mm (3.0 in) |
| 1963 | 66.0 mm (2.6 in) |
| 1964 | 72.9 mm (2.9 in) |
| 1965 | 75.9 mm (3.0 in) |
| 1966 | 81.5 mm (3.2 in) |
| 1967 | 67.6 mm (2.7 in) |
| 1968 | 121.9 mm (4.8 in) |
| 1969 | 80.5 mm (3.2 in) |
| 1970 | 73.9 mm (2.9 in) |
| 1971 | 58.4 mm (2.3 in) |
| 1972 | 101.9 mm (4.0 in) |
| 1973 | 76.3 mm (3.0 in) |
| 1974 | 53.8 mm (2.1 in) |
| 1975 | 114.0 mm (4.5 in) |
| 1976 | 77.0 mm (3.0 in) |
| 1977 | 73.6 mm (2.9 in) |
| 1978 | 107.2 mm (4.2 in) |
| 1979 | 115.9 mm (4.6 in) |
| 1980 | 80.0 mm (3.1 in) |
| 1981 | 80.8 mm (3.2 in) |
| 1982 | 67.6 mm (2.7 in) |
| 1983 | 72.1 mm (2.8 in) |
| 1984 | 79.8 mm (3.1 in) |
| 1985 | 80.6 mm (3.2 in) |
| 1986 | 134.9 mm (5.3 in) |
| 1987 | 67.6 mm (2.7 in) |
| 1988 | 125.4 mm (4.9 in) |
| 1989 | 141.0 mm (5.6 in) |
| 1990 | 93.0 mm (3.7 in) |
| 1991 | 90.7 mm (3.6 in) |
| 1992 | 63.9 mm (2.5 in) |
| 1993 | 78.2 mm (3.1 in) |
| 1994 | 106.5 mm (4.2 in) |
| 1995 | 84.7 mm (3.3 in) |
| 1996 | 68.4 mm (2.7 in) |
| 1997 | 83.3 mm (3.3 in) |
| 1998 | 73.9 mm (2.9 in) |
| 1999 | 99.4 mm (3.9 in) |
| 2000 | 91.7 mm (3.6 in) |
| 2001 | 77.6 mm (3.1 in) |
| 2002 | 68.9 mm (2.7 in) |
| 2003 | 94.4 mm (3.7 in) |
| 2004 | 97.6 mm (3.8 in) |
| 2007 | 39.2 mm (1.5 in) |
| 2008 | 255.3 mm (10.1 in) |
| 2009 | 96.5 mm (3.8 in) |
| 2010 | 132.4 mm (5.2 in) |
| 2011 | 113.0 mm (4.4 in) |
| 2012 | 92.7 mm (3.6 in) |
| 2013 | 95.8 mm (3.8 in) |
| 2014 | 69.6 mm (2.7 in) |
| 2015 | 115.0 mm (4.5 in) |
| 2016 | 133.8 mm (5.3 in) |
| 2017 | 95.5 mm (3.8 in) |
| 2018 | 117.7 mm (4.6 in) |
| 2019 | 97.5 mm (3.8 in) |
| 2020 | 117.9 mm (4.6 in) |
| 2021 | 111.3 mm (4.4 in) |
| 2022 | 64.8 mm (2.6 in) |
| 2023 | 88.6 mm (3.5 in) |
| 2024 | 78.1 mm (3.1 in) |
| 2025 | 107.2 mm (4.2 in) |
| 2026 | 86.9 mm (3.4 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1929 | 18 days |
| 1930 | 23 days |
| 1931 | 18 days |
| 1932 | 17 days |
| 1933 | 23 days |
| 1934 | 20 days |
| 1935 | 14 days |
| 1936 | 26 days |
| 1937 | 12 days |
| 1938 | 21 days |
| 1939 | 22 days |
| 1940 | 14 days |
| 1941 | 13 days |
| 1942 | 20 days |
| 1943 | 20 days |
| 1944 | 26 days |
| 1945 | 14 days |
| 1946 | 25 days |
| 1947 | 23 days |
| 1948 | 18 days |
| 1949 | 15 days |
| 1950 | 14 days |
| 1951 | 10 days |
| 1952 | 18 days |
| 1953 | 22 days |
| 1954 | 16 days |
| 1955 | 16 days |
| 1956 | 25 days |
| 1957 | 22 days |
| 1958 | 18 days |
| 1959 | 11 days |
| 1960 | 14 days |
| 1961 | 18 days |
| 1962 | 19 days |
| 1963 | 18 days |
| 1964 | 23 days |
| 1965 | 14 days |
| 1966 | 16 days |
| 1967 | 19 days |
| 1968 | 18 days |
| 1969 | 24 days |
| 1970 | 13 days |
| 1971 | 12 days |
| 1972 | 13 days |
| 1973 | 16 days |
| 1974 | 18 days |
| 1975 | 17 days |
| 1976 | 20 days |
| 1977 | 10 days |
| 1978 | 43 days |
| 1979 | 33 days |
| 1980 | 15 days |
| 1981 | 19 days |
| 1982 | 16 days |
| 1983 | 20 days |
| 1984 | 22 days |
| 1985 | 13 days |
| 1986 | 16 days |
| 1987 | 14 days |
| 1988 | 17 days |
| 1989 | 18 days |
| 1990 | 16 days |
| 1991 | 28 days |
| 1992 | 22 days |
| 1993 | 20 days |
| 1994 | 17 days |
| 1995 | 15 days |
| 1996 | 20 days |
| 1997 | 10 days |
| 1998 | 16 days |
| 1999 | 25 days |
| 2000 | 13 days |
| 2001 | 15 days |
| 2002 | 15 days |
| 2003 | 12 days |
| 2004 | 15 days |
| 2007 | 14 days |
| 2008 | 14 days |
| 2009 | 18 days |
| 2010 | 27 days |
| 2011 | 14 days |
| 2012 | 16 days |
| 2013 | 19 days |
| 2014 | 9 days |
| 2015 | 19 days |
| 2016 | 15 days |
| 2017 | 10 days |
| 2018 | 18 days |
| 2019 | 11 days |
| 2020 | 11 days |
| 2021 | 6 days |
| 2022 | 11 days |
| 2023 | 25 days |
| 2024 | 17 days |
| 2025 | 12 days |
| 2026 | 11 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
69 years with a frostAcross 69 years with a frost, the median last spring frost at Gull Lake Biological STN falls on 7 May and the median first autumn frost on 6 October, which leaves a median of 155 days between them.
In 1974 to 2008 the median growing season was 157 days. That is 9 days more than in 1934 to 1963.
Fitted over all years, the growing season changes by +1.9 days per decade at this station.
| Measure | Median, all years | Earliest period (1934 to 1963) | Recent period (1974 to 2008) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 7 May | 9 May | 4 May | 5 days earlier | -0.6 days per decade |
| First autumn frost | 6 October | 1 October | 8 October | 7 days later | +1.3 days per decade |
| Growing days | 155 days | 148 days | 157 days | 9 days more | +1.9 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
71 years, 1931 to 2008A day with at least 52.5 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 140.5 mm (5.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 52.5 mm (2.1 in) | |
| 5 years | 68.9 mm (2.7 in) | |
| 10 years | 82.1 mm (3.2 in) | |
| 25 years | 102.2 mm (4.0 in) | |
| 50 years | 120.0 mm (4.7 in) | |
| 100 years | 140.5 mm (5.5 in) | Longer than the 71 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, 71 years of values from 1931 to 2008.
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: 153.7 mm (6.1 in) in 2008; 138.9 mm (5.5 in) in 1939; 100.3 mm (3.9 in) in 1989.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
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 (2026-10-12).