観測史上1～10位の値（5月としての値）
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水戸（茨城県）
| 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) | 136.9 (1929/5/23) | 122.0 (1977/5/15) | 110.0 (2012/5/29) | 107.3 (1913/5/27) | 106.8 (1965/5/27) | 92.0 (1921/5/7) | 87.0 (2012/5/3) | 86.5 (1997/5/25) | 79.0 (2025/5/2) | 74.5 (1953/5/23) | 1897/5 2025/5 |
| 日最大10分間降水量 (mm) | 18.7 (1939/5/27) | 17.0 (2012/5/29) | 14.0 (1972/5/5) | 13.5 (2023/5/30) | 13.5 (1995/5/23) | 13.0 (1997/5/25) | 12.5 (1976/5/17) | 12.5 (1965/5/17) | 12.2 (1967/5/28) | 12.0 (1998/5/8) | 1937/5 2025/5 |
| 日最大1時間降水量 (mm) | 56.0 (2012/5/29) | 45.5 (1997/5/25) | 45.1 (1927/5/15) | 36.1 (1951/5/28) | 33.0 (1969/5/17) | 32.0 (2015/5/12) | 31.0 (2025/5/2) | 30.5 (2023/5/30) | 30.5 (2015/5/13) | 29.5 (1910/5/24) | 1906/5 2025/5 |
| 月最大24時間降水量 (mm) | 138.6 (1929/5/23) | 137.5 (1997/5/24) | 122.0 (1977/5/15) | 116.0 (2012/5/29) | 114.9 (1965/5/27) | 109.5 (1979/5/14) | 108.6 (1913/5/27) | 92.0 (1921/5/7) | 89.5 (1986/5/14) | 85.5 (1999/5/4) | 1906/5 2025/5 |
| 月降水量の多い方から (mm) | 346.5 (2012/5) | 335.7 (1965/5) | 269.6 (1929/5) | 258.4 (1920/5) | 256.8 (1956/5) | 253.2 (1962/5) | 246.5 (1997/5) | 245.0 (1927/5) | 242.5 (1921/5) | 231.0 (1910/5) | 1897/5 2025/5 |
| 月降水量の少ない方から (mm) | 43.0 (1984/5) | 50.3 (1961/5) | 65.0 (2005/5) | 67.0 (1946/5) | 69.7 (1906/5) | 70.4 (1933/5) | 73.5 (1975/5) | 73.7 (1967/5) | 74.0 (1974/5) | 75.0 (1971/5) | 1897/5 2025/5 |
| 日最高気温の高い方から (℃) | 33.4 (2019/5/26) | 32.9 (2023/5/18) | 32.8 (2022/5/29) | 32.1 (1993/5/13) | 32.1 (1940/5/22) | 32.0 (1958/5/31) | 31.9 (2023/5/17) | 31.7 (1961/5/27) | 31.4 (2004/5/31) | 31.3 (2019/5/27) | 1897/5 2025/5 |
| 日最高気温の低い方から (℃) | 9.4 (1919/5/22) | 9.4 (1902/5/12) | 10.1 (1947/5/3) | 10.2 (1943/5/16) | 10.3 (1931/5/9) | 10.4 (1945/5/11) | 10.7 (1993/5/2) | 10.7 (1976/5/3) | 10.7 (1926/5/14) | 10.7 (1913/5/16) | 1897/5 2025/5 |
| 日最低気温の高い方から (℃) | 20.8 (1963/5/31) | 20.8 (1961/5/29) | 20.8 (1961/5/12) | 20.5 (1955/5/12) | 20.5 (1938/5/30) | 20.1 (2018/5/17) | 19.9 (2009/5/22) | 19.8 (2016/5/25) | 19.6 (1985/5/25) | 19.4 (1998/5/18) | 1897/5 2025/5 |
| 日最低気温の低い方から (℃) | -0.1 (1953/5/3) | 1.0 (1931/5/3) | 1.4 (1945/5/7) | 1.5 (1908/5/1) | 1.6 (1957/5/4) | 1.7 (1908/5/2) | 1.8 (1934/5/3) | 2.0 (1902/5/13) | 2.1 (1910/5/4) | 2.2 (1934/5/4) | 1897/5 2025/5 |
| 月平均気温の高い方から (℃) | 19.0 (2024/5) | 18.8 (2015/5) | 18.7 (2017/5) | 18.5 (2020/5) | 18.4 (2019/5) | 18.4 (1982/5) | 18.3 (2018/5) | 18.3 (2016/5) | 18.2 (1961/5) | 18.1 (2021/5) | 1897/5 2025/5 |
| 月平均気温の低い方から (℃) | 13.3 (1945/5) | 13.8 (1915/5) | 14.2 (1929/5) | 14.4 (1984/5) | 14.4 (1935/5) | 14.5 (1946/5) | 14.5 (1925/5) | 14.5 (1904/5) | 14.6 (1943/5) | 14.6 (1931/5) | 1897/5 2025/5 |
| 日最小相対湿度 (%) | 13 (2011/5/15) | 14 (2019/5/24) | 14 (2019/5/2) | 14 (2017/5/8) | 14 (2008/5/6) | 14 (2005/5/3) | 15 (2020/5/14) | 16 (2022/5/29) | 16 (2021/5/10) | 16 (2011/5/19) | 1950/5 2025/5 |
| 日最大風速・風向 (m/s) | 20.0 北東 (1965/5/3) | 19.6 北北東 (1953/5/26) | 18.0 南南西 (1956/5/6) | 17.7 南西 (1961/5/29) | 17.3 南南西 (1941/5/4) | 17.1 南西 (1954/5/14) | 17.0 北東 (1965/5/17) | 16.8 南西 (1957/5/5) | 16.7 南南西 (1916/5/25) | 16.5 南南西 (1949/5/10) | 1897/5 2025/5 |
| 日最大瞬間風速・風向 (m/s) | 30.6 北東 (1965/5/3) | 27.7 南 (1999/5/27) | 25.6 南西 (1961/5/29) | 25.3 東 (1979/5/15) | 25.3 南南西 (1965/5/21) | 25.2 北 (1965/5/17) | 24.6 南西 (1954/5/14) | 24.4 南南西 (1956/5/6) | 24.0 南南西 (1997/5/8) | 24.0 北北東 (1953/5/26) | 1937/5 2025/5 |
| 月間日照時間の多い方から (時間) | 260.5 (2019/5) | 256.6 (2015/5) | 246.5 (2013/5) | 245.7 (2014/5) | 245.2 (1940/5) | 232.7 (1982/5) | 230.8 (1983/5) | 230.1 (1934/5) | 228.6 (2023/5) | 222.7 (1952/5) | 1899/5 2025/5 |
| 月間日照時間の少ない方から (時間) | 96.4 (1963/5) | 112.6 (1910/5) | 120.2 (1923/5) | 122.3 (1904/5) | 122.8 (2006/5) | 123.8 (1929/5) | 127.7 (1905/5) | 130.9 (1995/5) | 132.9 (2004/5) | 134.4 (1913/5) | 1899/5 2025/5 |
| 降雪の深さ日合計 (cm) | -- (2025/5/7) | -- (2025/5/6) | -- (2025/5/5) | -- (2025/5/4) | -- (2025/5/3) | -- (2025/5/2) | -- (2025/5/1) | -- (2024/5/31) | -- (2024/5/30) | -- (2024/5/29) | 1953/5 2025/5 |
| 降雪の深さ月合計 (cm) | -- (2024/5) | -- (2023/5) | -- (2022/5) | -- (2021/5) | -- (2020/5) | -- (2019/5) | -- (2018/5) | -- (2017/5) | -- (2016/5) | -- (2015/5) | 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) | 1897/5 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) | 1897/5 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。