Climate Search


Tmin: any Tmax: any
Sunshine: any Rain: any
USA January
Search list: 225 Stations -  Sorting: Tmin

City Tmin Tmax Sunshine Rain
  [°C] [°C] [hrs] [days]
-2 8 5 10
-2 6 n/a 17
-2 4 n/a 18
-2 12 n/a 5
-2 7 5 10
-3 4 5 15
-3 3 n/a 15
-3 5 n/a 19
-3 5 n/a 14
-3 4 n/a 16


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USA - Philadelphia


Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax209318982096203220812029
Tmin210119002105203320852032
Duration of sunshine62576260124150
Precipitation186169187181186180
Humidity/Visibility182163180173177172


ParameterJulAugSepOctNovDec
Tmax209220902055212420622132
Tmin210120952060213020672133
Duration of sunshine1551241201249062
Precipitation186190210215210217
Humidity/Visibility175177195203201215


Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured.