Grantsburg Weather Records (USC00473242)
Record envelope, standing records and threshold days for Grantsburg (USC00473242), Wisconsin, United States, with 58 years of record.
Key Facts for Grantsburg
- Grantsburg (USC00473242) is a weather station in Wisconsin, United States at 45.78 latitude and -92.68 longitude, 336 m (1,102 ft) above sea level.
- The station reports from 1893 to 1950, 58 years of record.
- 1,464 records set at Grantsburg still stand.
- Records are tracked for tmax, tmin, prcp, snow: an element needs 30 years of data to be eligible.
- Grantsburg tied a daily record low minimum temperature of 5.6 C (42.1 F) on 20 July 1950.
About the Station
- Location: Wisconsin, United States, 45.78 latitude, -92.68 longitude.
- Elevation: 336 m (1,102 ft).
- Period of record: 1893 to 1950, 58 years.
- Eligible elements: tmax, tmin, prcp, snow.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 12.8 C (55.0 F) | -45.6 C (-50.1 F) | n/a | n/a |
| Feb | 14.4 C (57.9 F) | -46.1 C (-51.0 F) | n/a | n/a |
| Mar | 27.2 C (81.0 F) | -35.6 C (-32.1 F) | n/a | n/a |
| Apr | 32.2 C (90.0 F) | -22.8 C (-9.0 F) | n/a | n/a |
| May | 42.2 C (108.0 F) | -9.4 C (15.1 F) | n/a | n/a |
| Jun | 40.6 C (105.1 F) | -5.0 C (23.0 F) | n/a | n/a |
| Jul | 42.2 C (108.0 F) | 1.1 C (34.0 F) | n/a | n/a |
| Aug | 38.3 C (100.9 F) | -1.1 C (30.0 F) | n/a | n/a |
| Sep | 38.3 C (100.9 F) | -8.9 C (16.0 F) | n/a | n/a |
| Oct | 31.7 C (89.1 F) | -14.4 C (6.1 F) | n/a | n/a |
| Nov | 23.9 C (75.0 F) | -35.6 C (-32.1 F) | n/a | n/a |
| Dec | 14.4 C (57.9 F) | -39.4 C (-38.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1893 | 32 |
| 1894 | 50 |
| 1895 | 22 |
| 1896 | 24 |
| 1897 | 34 |
| 1898 | 21 |
| 1899 | 25 |
| 1900 | 23 |
| 1901 | 24 |
| 1902 | 18 |
| 1903 | 19 |
| 1904 | 29 |
| 1905 | 22 |
| 1906 | 24 |
| 1907 | 26 |
| 1908 | 23 |
| 1909 | 28 |
| 1910 | 33 |
| 1911 | 31 |
| 1912 | 34 |
| 1913 | 34 |
| 1914 | 16 |
| 1915 | 14 |
| 1916 | 34 |
| 1917 | 23 |
| 1918 | 19 |
| 1919 | 24 |
| 1920 | 31 |
| 1921 | 34 |
| 1922 | 26 |
| 1923 | 27 |
| 1924 | 35 |
| 1925 | 28 |
| 1926 | 19 |
| 1927 | 29 |
| 1928 | 30 |
| 1929 | 30 |
| 1930 | 37 |
| 1931 | 50 |
| 1932 | 22 |
| 1933 | 24 |
| 1934 | 33 |
| 1935 | 27 |
| 1936 | 43 |
| 1937 | 12 |
| 1938 | 9 |
| 1939 | 19 |
| 1940 | 22 |
| 1941 | 18 |
| 1942 | 19 |
| 1943 | 9 |
| 1944 | 16 |
| 1945 | 21 |
| 1946 | 17 |
| 1947 | 23 |
| 1948 | 16 |
| 1949 | 14 |
| 1950 | 18 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 1934-05-31 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
| 1935-01-23 | Record low minimum temperature | Record low minimum temperature -45.6 C (-50.1 F) |
| 1936-02-16 | Record low minimum temperature | Record low minimum temperature -46.1 C (-51.0 F) |
Wettest Day of Each Month
Sep: 118.9 mm (4.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 30.5 mm (1.2 in) | 3 January 1906 |
| Feb | 30.5 mm (1.2 in) | 10 February 1909 |
| Mar | 38.1 mm (1.5 in) | 11 March 1897 |
| Apr | 63.5 mm (2.5 in) | 25 April 1908 |
| May | 73.7 mm (2.9 in) | 15 May 1894 |
| Jun | 114.3 mm (4.5 in) | 24 June 1914 |
| Jul | 78.7 mm (3.1 in) | 14 July 1907 |
| Aug | 113.0 mm (4.4 in) | 4 August 1944 |
| Sep | 118.9 mm (4.7 in) | 12 September 1903 |
| Oct | 55.9 mm (2.2 in) | 15 October 1933 |
| Nov | 40.6 mm (1.6 in) | 14 November 1909 |
| Dec | 33.5 mm (1.3 in) | 6 December 1894 |
Period of Record Coverage
1893 to 1950| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1893 | 355 | 97% | Yes |
| 1894 | 330 | 90% | Yes |
| 1895 | 328 | 90% | No |
| 1896 | 329 | 90% | No |
| 1897 | 351 | 96% | Yes |
| 1898 | 353 | 97% | Yes |
| 1899 | 331 | 91% | Yes |
| 1900 | 309 | 85% | No |
| 1901 | 356 | 98% | Yes |
| 1902 | 338 | 93% | Yes |
| 1903 | 308 | 84% | No |
| 1904 | 319 | 87% | No |
| 1905 | 358 | 98% | Yes |
| 1906 | 361 | 99% | Yes |
| 1907 | 359 | 98% | Yes |
| 1908 | 350 | 96% | Yes |
| 1909 | 362 | 99% | Yes |
| 1910 | 340 | 93% | Yes |
| 1911 | 350 | 96% | Yes |
| 1912 | 362 | 99% | Yes |
| 1913 | 354 | 97% | Yes |
| 1914 | 345 | 95% | Yes |
| 1915 | 241 | 66% | No |
| 1916 | 353 | 96% | Yes |
| 1917 | 351 | 96% | Yes |
| 1918 | 298 | 82% | No |
| 1919 | 263 | 72% | No |
| 1920 | 360 | 98% | Yes |
| 1921 | 360 | 99% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 363 | 99% | Yes |
| 1924 | 365 | 100% | Yes |
| 1925 | 362 | 99% | Yes |
| 1926 | 361 | 99% | Yes |
| 1927 | 363 | 99% | Yes |
| 1928 | 355 | 97% | Yes |
| 1929 | 358 | 98% | Yes |
| 1930 | 358 | 98% | Yes |
| 1931 | 362 | 99% | Yes |
| 1932 | 361 | 99% | Yes |
| 1933 | 360 | 99% | Yes |
| 1934 | 364 | 100% | Yes |
| 1935 | 364 | 100% | Yes |
| 1936 | 363 | 99% | Yes |
| 1937 | 307 | 84% | No |
| 1938 | 363 | 99% | Yes |
| 1939 | 365 | 100% | Yes |
| 1940 | 363 | 99% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 363 | 99% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 363 | 99% | Yes |
| 1945 | 361 | 99% | Yes |
| 1946 | 357 | 98% | Yes |
| 1947 | 357 | 98% | Yes |
| 1948 | 341 | 93% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 206 | 56% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 20 July 1950 | Grantsburg, US | daily low min (Tie) | 5.6 C (42.1 F) | tie | 5 years | 1 of 100 (Routine) |
| 13 July 1950 | Grantsburg, US | daily low max | 20.6 C (69.1 F) | 0.5 C (0.9 F) | 53 years | 22 of 100 (Routine) |
| 26 June 1950 | Grantsburg, US | daily low max | 18.9 C (66.0 F) | 0.5 C (0.9 F) | 44 years | 19 of 100 (Routine) |
| 8 June 1950 | Grantsburg, US | daily high min | 20.6 C (69.1 F) | 1.7 C (3.1 F) | 36 years | 18 of 100 (Routine) |
| 6 June 1950 | Grantsburg, US | daily high max | 34.4 C (93.9 F) | 0.5 C (0.9 F) | 49 years | 20 of 100 (Routine) |
| 23 May 1950 | Grantsburg, US | daily high max (Tie) | 31.1 C (88.0 F) | tie | 28 years | 3 of 100 (Routine) |
| 5 May 1950 | Grantsburg, US | daily rain | 58.9 mm (2.3 in) | 19.8 mm (0.8 in) | 12 years | 26 of 100 (Routine) |
| 30 April 1950 | Grantsburg, US | daily low max | 3.3 C (37.9 F) | 1.1 C (2.0 F) | 47 years | 20 of 100 (Routine) |
| 27 April 1950 | Grantsburg, US | daily low max | 2.2 C (36.0 F) | 2.2 C (4.0 F) | 56 years | 25 of 100 (Routine) |
| 26 April 1950 | Grantsburg, US | daily low max | 2.8 C (37.0 F) | 0.5 C (0.9 F) | 56 years | 22 of 100 (Routine) |
| 25 April 1950 | Grantsburg, US | daily snowfall | 10.2 cm (4.0 in) | 10.2 cm (4.0 in) | 56 years | 35 of 100 (Notable) |
| 13 April 1950 | Grantsburg, US | daily low max | 1.1 C (34.0 F) | 0.6 C (1.1 F) | 56 years | 22 of 100 (Routine) |
| 13 April 1950 | Grantsburg, US | daily low min | -11.1 C (12.0 F) | 1.1 C (2.0 F) | 9 years | 8 of 100 (Routine) |
| 12 April 1950 | Grantsburg, US | daily low max | 1.1 C (34.0 F) | 1.7 C (3.1 F) | 43 years | 19 of 100 (Routine) |
| 11 April 1950 | Grantsburg, US | daily low max | 2.2 C (36.0 F) | 1.1 C (2.0 F) | 53 years | 22 of 100 (Routine) |
| 10 April 1950 | Grantsburg, US | daily rain | 29.2 mm (1.1 in) | 11.4 mm (0.4 in) | 53 years | 33 of 100 (Routine) |
| 10 April 1950 | Grantsburg, US | daily low max | 1.7 C (35.1 F) | 0.5 C (0.9 F) | 36 years | 16 of 100 (Routine) |
| 9 April 1950 | Grantsburg, US | daily low max | 0.0 C (32.0 F) | 1.7 C (3.1 F) | 21 years | 13 of 100 (Routine) |
| 8 April 1950 | Grantsburg, US | daily low max | -0.6 C (30.9 F) | 1.2 C (2.2 F) | 21 years | 12 of 100 (Routine) |
| 21 March 1950 | Grantsburg, US | daily snowfall | 7.6 cm (3.0 in) | 2.5 cm (1.0 in) | 50 years | 23 of 100 (Routine) |
Climate Trend
41 complete years, 1893 to 1947| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1893 | 4.3 C | -1.39 C |
| 1897 | 5.3 C | -0.39 C |
| 1898 | 6.3 C | +0.56 C |
| 1901 | 5.8 C | +0.13 C |
| 1905 | 5.0 C | -0.75 C |
| 1906 | 5.6 C | -0.11 C |
| 1907 | 4.1 C | -1.58 C |
| 1908 | 6.7 C | +1.02 C |
| 1909 | 5.1 C | -0.62 C |
| 1912 | 4.6 C | -1.13 C |
| 1913 | 6.3 C | +0.54 C |
| 1914 | 5.8 C | +0.12 C |
| 1916 | 4.2 C | -1.48 C |
| 1917 | 3.6 C | -2.11 C |
| 1920 | 5.7 C | -0.04 C |
| 1921 | 7.2 C | +1.45 C |
| 1922 | 6.0 C | +0.27 C |
| 1923 | 5.7 C | -0.03 C |
| 1924 | 4.8 C | -0.90 C |
| 1925 | 5.9 C | +0.22 C |
| 1926 | 5.2 C | -0.50 C |
| 1927 | 5.0 C | -0.75 C |
| 1928 | 5.5 C | -0.20 C |
| 1929 | 4.2 C | -1.53 C |
| 1930 | 6.1 C | +0.40 C |
| 1931 | 8.6 C | +2.87 C |
| 1932 | 5.3 C | -0.37 C |
| 1933 | 6.0 C | +0.28 C |
| 1934 | 6.1 C | +0.42 C |
| 1935 | 5.4 C | -0.33 C |
| 1936 | 4.5 C | -1.19 C |
| 1938 | 6.9 C | +1.19 C |
| 1939 | 6.6 C | +0.91 C |
| 1940 | 5.5 C | -0.18 C |
| 1941 | 7.5 C | +1.75 C |
| 1942 | 6.7 C | +0.96 C |
| 1943 | 5.7 C | -0.04 C |
| 1944 | 7.2 C | +1.45 C |
| 1945 | 5.4 C | -0.31 C |
| 1946 | 6.7 C | +0.97 C |
| 1947 | 6.2 C | +0.51 C |
The annual mean temperature here has risen by 0.25 C (0.05 to 0.46) per decade over 1893 to 1947. In Fahrenheit: 0.5 F (0.1 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 | 0.25 C (0.05 to 0.46) per decade | 0.5 F (0.1 to 0.8) per decade | 1893 to 1947 | 41 | Rise |
| Mean daily maximum | 0.1 C (-0.1 to 0.4) per decade | 0.3 F (-0.1 to 0.6) per decade | 1893 to 1947 | 41 | Not clearly different from zero |
| Mean daily minimum | 0.4 C (0.1 to 0.6) per decade | 0.6 F (0.2 to 1.1) per decade | 1893 to 1947 | 41 | 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
1893 to 1950| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 1934 | 36.1 C (97.0 F) | 58 |
| Coldest night (TNn) | -46.1 C (-51.0 F) | 1936 | -37.2 C (-35.0 F) | 58 |
| Wettest day (Rx1day) | 118.9 mm (4.7 in) | 1903 | 56.9 mm (2.2 in) | 58 |
| Wettest five days (Rx5day) | 190.5 mm (7.5 in) | 1914 | 87.3 mm (3.4 in) | 58 |
| Longest dry spell (CDD) | 53 days | 1943 | 25 days | 58 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1893 | 36.1 C (97.0 F) |
| 1894 | 40.6 C (105.1 F) |
| 1895 | 34.4 C (93.9 F) |
| 1896 | 36.7 C (98.1 F) |
| 1897 | 36.7 C (98.1 F) |
| 1898 | 35.0 C (95.0 F) |
| 1899 | 34.4 C (93.9 F) |
| 1900 | 36.1 C (97.0 F) |
| 1901 | 39.4 C (102.9 F) |
| 1902 | 33.3 C (91.9 F) |
| 1903 | 32.2 C (90.0 F) |
| 1904 | 36.7 C (98.1 F) |
| 1905 | 33.9 C (93.0 F) |
| 1906 | 35.6 C (96.1 F) |
| 1907 | 33.9 C (93.0 F) |
| 1908 | 35.0 C (95.0 F) |
| 1909 | 33.3 C (91.9 F) |
| 1910 | 38.3 C (100.9 F) |
| 1911 | 37.8 C (100.0 F) |
| 1912 | 37.2 C (99.0 F) |
| 1913 | 37.2 C (99.0 F) |
| 1914 | 37.8 C (100.0 F) |
| 1915 | 33.9 C (93.0 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 38.3 C (100.9 F) |
| 1918 | 37.8 C (100.0 F) |
| 1919 | 36.1 C (97.0 F) |
| 1920 | 35.6 C (96.1 F) |
| 1921 | 38.9 C (102.0 F) |
| 1922 | 36.7 C (98.1 F) |
| 1923 | 35.6 C (96.1 F) |
| 1924 | 33.3 C (91.9 F) |
| 1925 | 35.6 C (96.1 F) |
| 1926 | 35.0 C (95.0 F) |
| 1927 | 35.6 C (96.1 F) |
| 1928 | 32.8 C (91.0 F) |
| 1929 | 36.1 C (97.0 F) |
| 1930 | 36.7 C (98.1 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 37.2 C (99.0 F) |
| 1933 | 37.8 C (100.0 F) |
| 1934 | 42.2 C (108.0 F) |
| 1935 | 35.0 C (95.0 F) |
| 1936 | 42.2 C (108.0 F) |
| 1937 | 37.2 C (99.0 F) |
| 1938 | 32.8 C (91.0 F) |
| 1939 | 33.3 C (91.9 F) |
| 1940 | 35.0 C (95.0 F) |
| 1941 | 35.0 C (95.0 F) |
| 1942 | 34.4 C (93.9 F) |
| 1943 | 33.9 C (93.0 F) |
| 1944 | 34.4 C (93.9 F) |
| 1945 | 36.1 C (97.0 F) |
| 1946 | 32.2 C (90.0 F) |
| 1947 | 38.3 C (100.9 F) |
| 1948 | 36.1 C (97.0 F) |
| 1949 | 38.3 C (100.9 F) |
| 1950 | 34.4 C (93.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1893 | -32.8 C (-27.0 F) |
| 1894 | -37.8 C (-36.0 F) |
| 1895 | -42.8 C (-45.0 F) |
| 1896 | -31.1 C (-24.0 F) |
| 1897 | -37.8 C (-36.0 F) |
| 1898 | -37.8 C (-36.0 F) |
| 1899 | -43.3 C (-45.9 F) |
| 1900 | -36.1 C (-33.0 F) |
| 1901 | -39.4 C (-38.9 F) |
| 1902 | -37.2 C (-35.0 F) |
| 1903 | -40.0 C (-40.0 F) |
| 1904 | -41.7 C (-43.1 F) |
| 1905 | -37.8 C (-36.0 F) |
| 1906 | -37.2 C (-35.0 F) |
| 1907 | -42.2 C (-44.0 F) |
| 1908 | -37.8 C (-36.0 F) |
| 1909 | -36.7 C (-34.1 F) |
| 1910 | -37.8 C (-36.0 F) |
| 1911 | -41.1 C (-42.0 F) |
| 1912 | -44.4 C (-47.9 F) |
| 1913 | -35.6 C (-32.1 F) |
| 1914 | -34.4 C (-29.9 F) |
| 1915 | -41.7 C (-43.1 F) |
| 1916 | -38.9 C (-38.0 F) |
| 1917 | -39.4 C (-38.9 F) |
| 1918 | -34.4 C (-29.9 F) |
| 1919 | -35.6 C (-32.1 F) |
| 1920 | -32.8 C (-27.0 F) |
| 1921 | -32.8 C (-27.0 F) |
| 1922 | -43.9 C (-47.0 F) |
| 1923 | -39.4 C (-38.9 F) |
| 1924 | -36.7 C (-34.1 F) |
| 1925 | -38.9 C (-38.0 F) |
| 1926 | -35.6 C (-32.1 F) |
| 1927 | -40.0 C (-40.0 F) |
| 1928 | -34.4 C (-29.9 F) |
| 1929 | -41.7 C (-43.1 F) |
| 1930 | -37.2 C (-35.0 F) |
| 1931 | -26.1 C (-15.0 F) |
| 1932 | -35.0 C (-31.0 F) |
| 1933 | -41.1 C (-42.0 F) |
| 1934 | -33.3 C (-27.9 F) |
| 1935 | -45.6 C (-50.1 F) |
| 1936 | -46.1 C (-51.0 F) |
| 1937 | -37.2 C (-35.0 F) |
| 1938 | -31.7 C (-25.1 F) |
| 1939 | -36.1 C (-33.0 F) |
| 1940 | -31.7 C (-25.1 F) |
| 1941 | -31.1 C (-24.0 F) |
| 1942 | -31.1 C (-24.0 F) |
| 1943 | -36.7 C (-34.1 F) |
| 1944 | -28.3 C (-18.9 F) |
| 1945 | -33.9 C (-29.0 F) |
| 1946 | -36.7 C (-34.1 F) |
| 1947 | -27.8 C (-18.0 F) |
| 1948 | -35.6 C (-32.1 F) |
| 1949 | -31.7 C (-25.1 F) |
| 1950 | -40.0 C (-40.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1893 | 45.7 mm (1.8 in) |
| 1894 | 73.7 mm (2.9 in) |
| 1895 | 55.9 mm (2.2 in) |
| 1896 | 50.8 mm (2.0 in) |
| 1897 | 58.4 mm (2.3 in) |
| 1898 | 54.6 mm (2.1 in) |
| 1899 | 52.1 mm (2.1 in) |
| 1900 | 53.3 mm (2.1 in) |
| 1901 | 53.3 mm (2.1 in) |
| 1902 | 61.0 mm (2.4 in) |
| 1903 | 118.9 mm (4.7 in) |
| 1904 | 58.4 mm (2.3 in) |
| 1905 | 77.5 mm (3.1 in) |
| 1906 | 61.0 mm (2.4 in) |
| 1907 | 97.8 mm (3.9 in) |
| 1908 | 63.5 mm (2.5 in) |
| 1909 | 76.2 mm (3.0 in) |
| 1910 | 48.3 mm (1.9 in) |
| 1911 | 43.2 mm (1.7 in) |
| 1912 | 64.8 mm (2.6 in) |
| 1913 | 38.4 mm (1.5 in) |
| 1914 | 114.3 mm (4.5 in) |
| 1915 | 56.6 mm (2.2 in) |
| 1916 | 57.2 mm (2.3 in) |
| 1917 | 58.7 mm (2.3 in) |
| 1918 | 33.5 mm (1.3 in) |
| 1919 | 50.8 mm (2.0 in) |
| 1920 | 50.3 mm (2.0 in) |
| 1921 | 35.8 mm (1.4 in) |
| 1922 | 35.1 mm (1.4 in) |
| 1923 | 45.5 mm (1.8 in) |
| 1924 | 78.0 mm (3.1 in) |
| 1925 | 71.6 mm (2.8 in) |
| 1926 | 47.2 mm (1.9 in) |
| 1927 | 57.2 mm (2.3 in) |
| 1928 | 46.2 mm (1.8 in) |
| 1929 | 64.8 mm (2.6 in) |
| 1930 | 42.7 mm (1.7 in) |
| 1931 | 88.1 mm (3.5 in) |
| 1932 | 39.4 mm (1.6 in) |
| 1933 | 55.9 mm (2.2 in) |
| 1934 | 61.0 mm (2.4 in) |
| 1935 | 70.9 mm (2.8 in) |
| 1936 | 64.0 mm (2.5 in) |
| 1937 | 59.4 mm (2.3 in) |
| 1938 | 54.1 mm (2.1 in) |
| 1939 | 55.1 mm (2.2 in) |
| 1940 | 44.5 mm (1.8 in) |
| 1941 | 111.8 mm (4.4 in) |
| 1942 | 73.7 mm (2.9 in) |
| 1943 | 35.1 mm (1.4 in) |
| 1944 | 113.0 mm (4.4 in) |
| 1945 | 83.6 mm (3.3 in) |
| 1946 | 50.8 mm (2.0 in) |
| 1947 | 58.4 mm (2.3 in) |
| 1948 | 31.8 mm (1.3 in) |
| 1949 | 35.1 mm (1.4 in) |
| 1950 | 58.9 mm (2.3 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1893 | 66.0 mm (2.6 in) |
| 1894 | 117.4 mm (4.6 in) |
| 1895 | 68.6 mm (2.7 in) |
| 1896 | 89.5 mm (3.5 in) |
| 1897 | 102.8 mm (4.0 in) |
| 1898 | 115.6 mm (4.6 in) |
| 1899 | 99.8 mm (3.9 in) |
| 1900 | 146.8 mm (5.8 in) |
| 1901 | 72.4 mm (2.9 in) |
| 1902 | 96.5 mm (3.8 in) |
| 1903 | 130.4 mm (5.1 in) |
| 1904 | 86.4 mm (3.4 in) |
| 1905 | 114.8 mm (4.5 in) |
| 1906 | 75.7 mm (3.0 in) |
| 1907 | 162.6 mm (6.4 in) |
| 1908 | 56.7 mm (2.2 in) |
| 1909 | 130.8 mm (5.1 in) |
| 1910 | 48.3 mm (1.9 in) |
| 1911 | 87.7 mm (3.5 in) |
| 1912 | 96.5 mm (3.8 in) |
| 1913 | 59.2 mm (2.3 in) |
| 1914 | 190.5 mm (7.5 in) |
| 1915 | 91.1 mm (3.6 in) |
| 1916 | 78.3 mm (3.1 in) |
| 1917 | 76.5 mm (3.0 in) |
| 1918 | 59.2 mm (2.3 in) |
| 1919 | 63.5 mm (2.5 in) |
| 1920 | 112.5 mm (4.4 in) |
| 1921 | 58.9 mm (2.3 in) |
| 1922 | 61.0 mm (2.4 in) |
| 1923 | 81.0 mm (3.2 in) |
| 1924 | 100.1 mm (3.9 in) |
| 1925 | 136.1 mm (5.4 in) |
| 1926 | 77.5 mm (3.1 in) |
| 1927 | 91.0 mm (3.6 in) |
| 1928 | 97.2 mm (3.8 in) |
| 1929 | 91.4 mm (3.6 in) |
| 1930 | 62.5 mm (2.5 in) |
| 1931 | 111.4 mm (4.4 in) |
| 1932 | 57.9 mm (2.3 in) |
| 1933 | 85.6 mm (3.4 in) |
| 1934 | 104.2 mm (4.1 in) |
| 1935 | 108.5 mm (4.3 in) |
| 1936 | 77.0 mm (3.0 in) |
| 1937 | 77.0 mm (3.0 in) |
| 1938 | 123.7 mm (4.9 in) |
| 1939 | 84.1 mm (3.3 in) |
| 1940 | 61.7 mm (2.4 in) |
| 1941 | 150.4 mm (5.9 in) |
| 1942 | 89.7 mm (3.5 in) |
| 1943 | 80.0 mm (3.1 in) |
| 1944 | 140.2 mm (5.5 in) |
| 1945 | 86.8 mm (3.4 in) |
| 1946 | 92.7 mm (3.6 in) |
| 1947 | 63.6 mm (2.5 in) |
| 1948 | 49.8 mm (2.0 in) |
| 1949 | 61.4 mm (2.4 in) |
| 1950 | 78.2 mm (3.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1893 | 20 days |
| 1894 | 25 days |
| 1895 | 46 days |
| 1896 | 21 days |
| 1897 | 19 days |
| 1898 | 34 days |
| 1899 | 23 days |
| 1900 | 25 days |
| 1901 | 27 days |
| 1902 | 25 days |
| 1903 | 14 days |
| 1904 | 45 days |
| 1905 | 32 days |
| 1906 | 22 days |
| 1907 | 25 days |
| 1908 | 30 days |
| 1909 | 27 days |
| 1910 | 37 days |
| 1911 | 24 days |
| 1912 | 42 days |
| 1913 | 40 days |
| 1914 | 22 days |
| 1915 | 23 days |
| 1916 | 17 days |
| 1917 | 33 days |
| 1918 | 22 days |
| 1919 | 16 days |
| 1920 | 20 days |
| 1921 | 25 days |
| 1922 | 19 days |
| 1923 | 18 days |
| 1924 | 27 days |
| 1925 | 32 days |
| 1926 | 17 days |
| 1927 | 24 days |
| 1928 | 22 days |
| 1929 | 19 days |
| 1930 | 29 days |
| 1931 | 21 days |
| 1932 | 22 days |
| 1933 | 33 days |
| 1934 | 31 days |
| 1935 | 17 days |
| 1936 | 20 days |
| 1937 | 35 days |
| 1938 | 22 days |
| 1939 | 31 days |
| 1940 | 17 days |
| 1941 | 19 days |
| 1942 | 32 days |
| 1943 | 53 days |
| 1944 | 27 days |
| 1945 | 26 days |
| 1946 | 15 days |
| 1947 | 31 days |
| 1948 | 30 days |
| 1949 | 22 days |
| 1950 | 19 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 Grantsburg falls on 25 May and the median first autumn frost on 17 September, which leaves a median of 116 days between them.
Fitted over all years, the growing season changes by +0.5 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1914 to 1947) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 May | n/a | 24 May | n/a | -0.5 days per decade |
| First autumn frost | 17 September | n/a | 17 September | n/a | 0.0 days per decade |
| Growing days | 116 days | n/a | 113 days | n/a | +0.5 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
44 years, 1896 to 1949A day with at least 55.7 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 122.9 mm (4.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 55.7 mm (2.2 in) | |
| 5 years | 72.7 mm (2.9 in) | |
| 10 years | 84.4 mm (3.3 in) | |
| 25 years | 99.5 mm (3.9 in) | |
| 50 years | 111.1 mm (4.4 in) | Longer than the 44 years of record |
| 100 years | 122.9 mm (4.8 in) | Longer than the 44 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, 44 years of values from 1896 to 1949.
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: 113.0 mm (4.4 in) in 1944; 111.8 mm (4.4 in) in 1941; 97.8 mm (3.9 in) in 1907.
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).