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

City Tmin Tmax Sunshine Rain
  [°C] [°C] [hrs] [days]
-1 7 n/a 15
-7 0 3 27
-15 -5 n/a 18
-11 -2 n/a 17
0 10 n/a 15
-2 12 n/a 5
-5 -1 n/a 27
1 7 n/a 25
-5 2 4 17
0 14 n/a 7


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USA - Rochester


Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax205918642065201920712028
Tmin206218692073202120752028
Duration of sunshine000000
Precipitation155141156172186180
Humidity/Visibility152138153167181176


ParameterJulAugSepOctNovDec
Tmax209320872012209820362092
Tmin209420872028209820392096
Duration of sunshine000000
Precipitation187188180184180187
Humidity/Visibility180180176178174181


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.