WorldClim2

From variable 3.8
Summary of observation-based historical datasets with surface wind speed and/or direction available
reference

source
UN Environment World Conservation Monitoring Centre (UNEP-WCMC)
data type
Gridded observations
spatial domain
Global (land only)
spatial resolution
30 arc s (1 km)
temporal coverage
1970-2000
time step
Monthly
data format
GeoTIFF
comments
Interpolated using climate station data and satellite derived covariates. Provides values for wind speed.