WEATHER IN Aachen
Climate tables. Data for Aachen.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -20.4 (1945) | 0.4 | 2.8 | 5.2 | 16.2 (1999) |
| february | -20.2 (1895) | 0.7 | 3.4 | 6.3 | 20.5 (1960) |
| march | -11.9 (1895) | 2.7 | 6.4 | 10.4 | 24.4 (1945) |
| april | -4.8 (1911) | 4.6 | 9.5 | 14.7 | 30.0 (1968) |
| may | -1.3 (1914) | 7.9 | 12.9 | 18.2 | 34.2 (1892) |
| june | 1.8 (1962) | 10.8 | 15.6 | 20.8 | 36.6 (1947) |
| july | 5.8 (1984) | 13.3 | 18.1 | 23.5 | 38.6 (2019) |
| august | 3.4 (1904) | 13.3 | 18.0 | 23.4 | 37.2 (1944) |
| september | 0.0 (1944) | 10.5 | 14.6 | 19.3 | 34.3 (1911) |
| october | -5.7 (1950) | 7.7 | 10.8 | 14.2 | 26.9 (2001) |
| november | -8.9 (1902) | 4.0 | 6.7 | 9.6 | 22.1 (1994) |
| december | -16.5 (1950) | 1.4 | 3.7 | 6.0 | 17.6 (1953) |
| year | () | () |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 65 | 4 (1997) | 141 (1948) | 37 (1993) |
| february | 61 | 4 (1959) | 171 (1946) | 44 (1984) |
| march | 57 | 7 (1993) | 155 (1988) | 32 (1948) |
| april | 48 | 0.1 (2007) | 154 (1935) | 63 (2018) |
| may | 63 | 5 (1939) | 166 (1984) | 43 (1906) |
| june | 73 | 16 (1962) | 180 (1961) | 68 (1905) |
| july | 75 | 9 (2018) | 217 (2000) | 57 (2014) |
| august | 78 | 8 (1899) | 177 (1969) | 63 (1971) |
| september | 63 | 6 (1959) | 197 (1984) | 67 (1956) |
| october | 65 | 4 (1969) | 153 (1982) | 64 (1982) |
| november | 64 | 3 (2011) | 163 (1952) | 43 (1948) |
| december | 76 | 9 (1933) | 167 (1966) | 41 (1990) |
| year | () | () | () |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |