観測史上1～10位の値（5月としての値）
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寿都（後志地方）
| 要素名／順位 | 1位 | 2位 | 3位 | 4位 | 5位 | 6位 | 7位 | 8位 | 9位 | 10位 | 統計期間 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 日降水量 (mm) | 119.0 (1998/5/2) | 66.5 (2008/5/20) | 55.7 (1909/5/17) | 46.5 (1935/5/1) | 45.3 (1897/5/30) | 39.2 (1907/5/5) | 38.1 (1934/5/14) | 38.0 (1983/5/14) | 37.1 (1955/5/29) | 37.0 (2011/5/2) | 1885/5 2025/5 |
| 日最大10分間降水量 (mm) | 6.5 (2002/5/31) | 4.5 (2013/5/21) | 4.0 (2004/5/11) | 4.0 (1998/5/2) | 4.0 (1989/5/28) | 4.0 (1986/5/31) | 3.5 (2016/5/31) | 3.5 (2011/5/21) | 3.5 (1989/5/20) | 3.5 (1978/5/27) | 1938/5 2025/5 |
| 日最大1時間降水量 (mm) | 15.0 (1998/5/2) | 12.0 (2002/5/31) | 11.5 (2016/5/31) | 10.5 (1986/5/31) | 10.5 (1983/5/14) | 9.5 (2004/5/11) | 9.5 (1942/5/26) | 9.0 (2013/5/21) | 9.0 (1997/5/17) | 9.0 (1989/5/20) | 1938/5 2025/5 |
| 月最大24時間降水量 (mm) | 119.5 (1998/5/2) | 68.5 (2008/5/20) | 41.0 (1972/5/16) | 40.0 (2011/5/2) | 40.0 (1997/5/8) | 38.0 (1983/5/14) | 37.5 (1978/5/30) | 35.9 (1963/5/31) | 35.5 (1994/5/5) | 34.0 (2021/5/16) | 1961/5 2025/5 |
| 月降水量の多い方から (mm) | 188.2 (1955/5) | 154.9 (1909/5) | 150.5 (1998/5) | 131.3 (1948/5) | 130.2 (1934/5) | 129.0 (1972/5) | 119.0 (2011/5) | 118.6 (1907/5) | 114.5 (2008/5) | 112.6 (1961/5) | 1885/5 2025/5 |
| 月降水量の少ない方から (mm) | 17.7 (1926/5) | 20.5 (2014/5) | 25.3 (1901/5) | 25.5 (1975/5) | 25.8 (1936/5) | 27.0 (1911/5) | 29.3 (1915/5) | 29.3 (1896/5) | 29.6 (1940/5) | 29.6 (1929/5) | 1885/5 2025/5 |
| 日最高気温の高い方から (℃) | 29.0 (2019/5/27) | 28.2 (2019/5/26) | 28.0 (2019/5/25) | 27.9 (1996/5/30) | 27.6 (1938/5/15) | 27.0 (2001/5/15) | 26.7 (2016/5/21) | 26.6 (1922/5/27) | 26.3 (1911/5/9) | 26.1 (2001/5/14) | 1885/5 2025/5 |
| 日最高気温の低い方から (℃) | 4.2 (1971/5/4) | 4.7 (1971/5/7) | 5.1 (1935/5/1) | 5.1 (1929/5/5) | 5.2 (1971/5/5) | 5.2 (1971/5/2) | 5.2 (1931/5/2) | 5.2 (1885/5/13) | 5.6 (1953/5/1) | 5.6 (1929/5/4) | 1885/5 2025/5 |
| 日最低気温の高い方から (℃) | 16.5 (2019/5/26) | 15.3 (1956/5/22) | 15.1 (2016/5/26) | 14.8 (1966/5/28) | 14.5 (2001/5/15) | 14.5 (1903/5/30) | 14.4 (2017/5/31) | 14.4 (2016/5/20) | 14.4 (1983/5/29) | 14.4 (1905/5/31) | 1885/5 2025/5 |
| 日最低気温の低い方から (℃) | -1.4 (1887/5/4) | -1.1 (1935/5/6) | -0.9 (1955/5/3) | -0.7 (1934/5/3) | -0.5 (1916/5/2) | -0.4 (1983/5/6) | -0.4 (1947/5/3) | -0.4 (1924/5/12) | -0.3 (1935/5/4) | -0.3 (1931/5/3) | 1885/5 2025/5 |
| 月平均気温の高い方から (℃) | 13.8 (2019/5) | 13.4 (2016/5) | 13.0 (2022/5) | 12.9 (2024/5) | 12.8 (1956/5) | 12.5 (2023/5) | 12.5 (2017/5) | 12.5 (2015/5) | 12.5 (2014/5) | 12.4 (1948/5) | 1885/5 2025/5 |
| 月平均気温の低い方から (℃) | 8.1 (1915/5) | 8.2 (1945/5) | 8.5 (1893/5) | 8.7 (1898/5) | 8.8 (1908/5) | 8.9 (1929/5) | 8.9 (1902/5) | 9.0 (1984/5) | 9.0 (1955/5) | 9.1 (1931/5) | 1885/5 2025/5 |
| 日最小相対湿度 (%) | 12 (2002/5/3) | 13 (2016/5/21) | 13 (1994/5/13) | 15 (2009/5/9) | 15 (2007/5/9) | 16 (2015/5/6) | 16 (2001/5/14) | 16 (1997/5/5) | 16 (1976/5/18) | 16 (1973/5/15) | 1950/5 2025/5 |
| 日最大風速・風向 (m/s) | 39.5 南南東 (1895/5/18) | 35.1 南南東 (1955/5/4) | 35.0 南 (1936/5/20) | 31.8 南南東 (1923/5/25) | 31.4 南南東 (1955/5/5) | 29.8 南南東 (1919/5/13) | 27.3 南南東 (1981/5/11) | 26.0 南東 (1946/5/8) | 25.8 南 (1986/5/15) | 25.3 南 (1981/5/12) | 1885/5 2025/5 |
| 日最大瞬間風速・風向 (m/s) | 44.9 南南東 (1955/5/4) | 39.0 南 (1986/5/15) | 37.4 南南東 (1981/5/11) | 36.2 南 (1981/5/12) | 36.2 南南東 (1973/5/18) | 34.5 南 (1986/5/14) | 32.8 南 (1980/5/27) | 30.8 南南東 (2011/5/13) | 30.2 北北西 (1988/5/13) | 29.8 南南東 (1989/5/14) | 1942/5 2025/5 |
| 月間日照時間の多い方から (時間) | 279.1 (2019/5) | 271.7 (1947/5) | 271.2 (1956/5) | 266.8 (1904/5) | 263.7 (1957/5) | 254.5 (1985/5) | 254.4 (1901/5) | 247.4 (2023/5) | 242.2 (2003/5) | 241.0 (2015/5) | 1901/5 2025/5 |
| 月間日照時間の少ない方から (時間) | 85.6 (1920/5) | 119.8 (1918/5) | 121.7 (1940/5) | 124.8 (2000/5) | 131.5 (1931/5) | 132.5 (1996/5) | 132.5 (1968/5) | 132.7 (1945/5) | 133.2 (1960/5) | 135.4 (1934/5) | 1901/5 2025/5 |
| 降雪の深さ日合計 (cm) | 0 (2003/5/1) | 0 (1991/5/3) | 0 (1988/5/8) | 0 (1987/5/5) | 0 (1980/5/1) | 0 (1979/5/12) | 0 (1972/5/3) | 0 (1971/5/7) | 0 (1953/5/1) | -- (2025/5/6) | 1953/5 2025/5 |
| 降雪の深さ月合計 (cm) | 0 (2003/5) | 0 (1991/5) | 0 (1988/5) | 0 (1987/5) | 0 (1980/5) | 0 (1979/5) | 0 (1972/5) | 0 (1971/5) | 0 (1953/5) | -- (2024/5) | 1953/5 2025/5 |
| 月最深積雪の大きい方から (cm) | -- (2024/5) | -- (2023/5) | -- (2022/5) | -- (2021/5) | -- (2020/5) | -- (2019/5) | -- (2018/5) | -- (2017/5) | -- (2016/5) | -- (2015/5) | 1885/5 2025/5 |
| 月最深積雪の小さい方から (cm) | -- (2024/5) | -- (2023/5) | -- (2022/5) | -- (2021/5) | -- (2020/5) | -- (2019/5) | -- (2018/5) | -- (2017/5) | -- (2016/5) | -- (2015/5) | 1885/5 2025/5 |
- 値欄の記号の説明
- 上記とは別に、日最大1時間降水量と月最大24時間降水量は、単位時間や日界の異なる統計も行っています。この値は、「詳細（N時間降水量）」で確認できます。