Here are some general outdoor weather station guidelines to keep in mind:

Keep grass and creeping plants away from remote weather sensors. If the sensors have to be mounted over vegetation, keep the vegetation trimmed to make sure it doesn't interfere with sensor operation or impede the free flow of air into and around them.

Use insecticide or other control measures around your weather station equipment support base. Ants and other critters seem to be drawn to build nests and other habitats around weather instruments. BE CAREFUL not to get insecticide or other chemicals on any of the plastic parts of your weather station as they can be very harmful to the plastic surfaces.

For cabled weather stations, it's a good idea to bury the cable (preferably in PVC conduit) to eliminate the tripping hazard and keep animals (and mowers) from chewing the cable up. If the sensors are mounted on the building, run the cable neatly using cable clips/staples to secure it to the wall. Being exposed to the constant flexing of winds can cause premature wear and failure to wired home weather station cables, so be sure to use plastic ties or other means to secure loose cables.

If your anemometer or rain gage has an electric heater, be sure to unplug it during warm weather as it could damage the components by the elevated temperature. Even if the heater has a thermostat, from the standpoint of safety it's still a good idea to disconnect it after the date of latest frost has passed.

If your electronic weather stations sensors are powered by solar energy, make sure you orient the solar collector panel towards the south to receive the maximum amount of available sunlight each day. Also be sure to keep the panel clean.

 

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