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Tmin: any Tmax: any
Sunshine: any Rain: any
USA January
Search list: 109 Stations -  Sorting: Sunshine hours

City Tmin Tmax Sunshine Rain
  [°C] [°C] [hrs] [days]
-4 5 4 16
-6 1 4 15
-5 3 4 16
-6 0 4 22
-7 0 3 21
-6 1 3 18
1 7 3 25
-15 -3 3 18
-4 4 3 14
-7 0 3 22


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USA - Williston


Number of days available for climatic review

ParameterJanFebMarAprMayJun
Tmax166315011659160816471605
Tmin167115041671161516511608
Duration of sunshine93869360124150
Precipitation186169187181186180
Humidity/Visibility180166182176179174


ParameterJulAugSepOctNovDec
Tmax165816581636169116431699
Tmin166516661642169816481697
Duration of sunshine1861241201249093
Precipitation186190210215210217
Humidity/Visibility176178199205205215


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.