Dear Casey Melvin,
Greetings from Sophie, Top China Travel!
Thank you very much for your message left to us.
Well noted that you are interested in the wind condition of Mt. Everest. Please kindly be advised that the climate in Mt. Everest area is changeable. The temperature is around -20oc to -31 oc.
The wind is also changeable daily. The higher the altitude it is, the larger the change will be.
But if you are an ordinary tourist and hope to visit to Mt. Everest Camp, it will not influence a lot. If you hope to climb it, it is better to get advice from an expert meteorologist.
Generally speaking, the end of April to the beginning of June and Mid of Sep to beginning of Oct will be the best season for tour to Mt. Everest Camp. It is also suitable for climbing. As the wind will be smaller, more sunny days and dry. But it is better to avoid July and August as it is rainy season.