観測史上1～10位の値（5月としての値）
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根室（根室地方）
| 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) | 91.4 (1905/5/19) | 89.0 (1981/5/29) | 72.9 (1933/5/3) | 71.5 (1923/5/4) | 66.0 (1960/5/16) | 64.0 (1977/5/17) | 61.5 (1895/5/29) | 59.8 (1907/5/11) | 59.3 (1948/5/25) | 57.0 (1994/5/5) | 1880/5 2025/5 |
| 日最大10分間降水量 (mm) | 7.0 (1991/5/12) | 6.5 (1994/5/16) | 5.0 (1969/5/19) | 4.7 (1948/5/25) | 4.5 (2018/5/4) | 4.5 (2009/5/13) | 4.5 (1978/5/27) | 4.5 (1948/5/18) | 4.4 (1941/5/30) | 4.3 (1950/5/19) | 1937/5 2025/5 |
| 日最大1時間降水量 (mm) | 18.5 (1994/5/16) | 16.6 (1905/5/19) | 15.5 (1890/5/8) | 14.5 (1994/5/5) | 13.3 (1966/5/8) | 12.5 (2010/5/7) | 12.5 (1981/5/29) | 12.3 (1948/5/25) | 12.0 (2009/5/13) | 12.0 (1956/5/6) | 1889/5 2025/5 |
| 月最大24時間降水量 (mm) | 99.8 (1905/5/19) | 94.0 (1981/5/29) | 88.4 (1933/5/3) | 86.5 (1975/5/18) | 73.0 (1923/5/4) | 68.5 (1989/5/14) | 68.5 (1977/5/17) | 65.5 (1999/5/5) | 64.5 (1960/5/16) | 62.9 (1948/5/25) | 1889/5 2025/5 |
| 月降水量の多い方から (mm) | 265.5 (1975/5) | 261.0 (1981/5) | 252.6 (1960/5) | 238.7 (1880/5) | 200.7 (1907/5) | 180.0 (2007/5) | 179.0 (1948/5) | 169.0 (1995/5) | 164.5 (2009/5) | 162.5 (2010/5) | 1880/5 2025/5 |
| 月降水量の少ない方から (mm) | 0.0 (1881/5) | 23.8 (1911/5) | 30.5 (1914/5) | 30.8 (1906/5) | 31.0 (2003/5) | 33.5 (2020/5) | 36.5 (1925/5) | 38.3 (1899/5) | 40.5 (2002/5) | 42.0 (1979/5) | 1880/5 2025/5 |
| 日最高気温の高い方から (℃) | 34.0 (2019/5/26) | 29.5 (1998/5/16) | 28.5 (2020/5/30) | 27.6 (1966/5/19) | 27.4 (1961/5/27) | 26.6 (2020/5/31) | 26.5 (2016/5/22) | 26.5 (1999/5/22) | 26.1 (2016/5/21) | 26.1 (1974/5/19) | 1880/5 2025/5 |
| 日最高気温の低い方から (℃) | 1.7 (1922/5/1) | 1.7 (1893/5/5) | 1.8 (1971/5/7) | 1.9 (1915/5/12) | 2.0 (1980/5/1) | 2.0 (1922/5/4) | 2.1 (1902/5/12) | 2.2 (1974/5/1) | 2.2 (1929/5/5) | 2.4 (1934/5/1) | 1880/5 2025/5 |
| 日最低気温の高い方から (℃) | 12.6 (2023/5/27) | 11.8 (2023/5/28) | 11.0 (2000/5/29) | 10.9 (2019/5/25) | 10.9 (2016/5/21) | 10.9 (1991/5/23) | 10.8 (2024/5/18) | 10.7 (2018/5/31) | 10.6 (1949/5/11) | 10.4 (2016/5/20) | 1880/5 2025/5 |
| 日最低気温の低い方から (℃) | -6.7 (1885/5/3) | -6.4 (1885/5/8) | -6.0 (1885/5/10) | -6.0 (1885/5/2) | -5.8 (1885/5/16) | -5.8 (1885/5/1) | -5.6 (1885/5/7) | -5.3 (1885/5/13) | -5.2 (1885/5/14) | -4.7 (1885/5/15) | 1880/5 2025/5 |
| 月平均気温の高い方から (℃) | 10.7 (2019/5) | 9.9 (2016/5) | 9.9 (2015/5) | 9.7 (2023/5) | 9.7 (1956/5) | 9.4 (2024/5) | 9.4 (2022/5) | 9.4 (1991/5) | 8.9 (1970/5) | 8.9 (1911/5) | 1880/5 2025/5 |
| 月平均気温の低い方から (℃) | 3.8 (1915/5) | 4.7 (1908/5) | 4.9 (1953/5) | 5.0 (1945/5) | 5.0 (1889/5) | 5.0 (1887/5) | 5.1 (1922/5) | 5.1 (1894/5) | 5.2 (1996/5) | 5.2 (1931/5) | 1880/5 2025/5 |
| 日最小相対湿度 (%) | 18 (2016/5/21) | 19 (1998/5/16) | 19 (1978/5/7) | 20 (2019/5/5) | 20 (2016/5/9) | 20 (1973/5/6) | 21 (1999/5/2) | 21 (1987/5/10) | 22 (2020/5/9) | 22 (2019/5/26) | 1950/5 2025/5 |
| 日最大風速・風向 (m/s) | 24.2 東 (1924/5/25) | 22.8 南東 (2008/5/20) | 21.4 北西 (1954/5/10) | 21.2 南西 (2005/5/19) | 20.2 東 (1922/5/13) | 20.0 北西 (2014/5/17) | 19.9 南東 (1999/5/5) | 19.7 北東 (1893/5/5) | 19.4 北北西 (1910/5/3) | 18.9 南東 (2022/5/28) | 1890/5 2025/5 |
| 日最大瞬間風速・風向 (m/s) | 37.1 南西 (2005/5/19) | 33.8 南東 (2008/5/20) | 32.6 南東 (1999/5/5) | 30.0 東北東 (1996/5/10) | 29.6 北西 (2014/5/17) | 29.6 北西 (1954/5/10) | 29.5 南南西 (1998/5/2) | 28.4 北西 (1963/5/25) | 28.3 北西 (1954/5/11) | 27.7 南西 (1998/5/17) | 1940/5 2025/5 |
| 月間日照時間の多い方から (時間) | 253.9 (1956/5) | 249.1 (2019/5) | 235.9 (1976/5) | 234.5 (1925/5) | 233.4 (2023/5) | 232.7 (1987/5) | 230.7 (1970/5) | 230.4 (1890/5) | 226.6 (1963/5) | 224.9 (2016/5) | 1890/5 2025/5 |
| 月間日照時間の少ない方から (時間) | 61.4 (1920/5) | 84.1 (1968/5) | 101.9 (2013/5) | 104.5 (1960/5) | 113.0 (2001/5) | 113.5 (1909/5) | 115.3 (1915/5) | 116.0 (1937/5) | 117.2 (2000/5) | 117.5 (2005/5) | 1890/5 2025/5 |
| 降雪の深さ日合計 (cm) | 9 (1977/5/3) | 6 (1983/5/17) | 5 (1996/5/15) | 3 (1977/5/2) | 2 (1974/5/1) | 2 (1971/5/7) | 1 (1996/5/16) | 1 (1980/5/6) | 1 (1971/5/8) | 1 (1958/5/18) | 1953/5 2025/5 |
| 降雪の深さ月合計 (cm) | 12 (1977/5) | 6 (1996/5) | 6 (1983/5) | 3 (1971/5) | 2 (1974/5) | 1 (1980/5) | 1 (1958/5) | 0 (2005/5) | 0 (2004/5) | 0 (2001/5) | 1953/5 2025/5 |
| 月最深積雪の大きい方から (cm) | 15 (1977/5/3) | 7 (1951/5/2) | 7 (1903/5/23) | 6 (1983/5/17) | 6 (1908/5/14) | 5 (1996/5/15) | 4 (1994/5/1) | 3 (1922/5/1) | 2 (1974/5/1) | 2 (1971/5/8) | 1880/5 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) | 1880/5 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。