I will take a shot:
Originally Posted by bosco41
Temperatures normally average in the 40s. Lower 40s to start upper to end. Highs average in the 50s and lows average in the 30s to lower 40s. Now that is not to say that some days will be 40 or 60 as highs and lows in the 20s or 50s. This week in May we set a new daily minimum of 16, the first daily min record for a summer month in a while. This month has been running about 3-4 degrees below normal as well. This is not to say that trends will continue, but just something to keep in mind.
Snowfall wise, there is still plenty of snow in the normal fields on the summits. THe month of June gets close to an inch on average. Although it is normally one of the least snowy months, it still can get snow as with any month. An precipitation averages 8-9 inches for the month (rain, snow, sleet, hail, etc go towards this total). Not the wettest month but not the driest.
Winds tend to be northwest. It is rare to get 100 mph winds. Not to say impossible just improbable. Hurricane force gusts (above 73 mph) average about 5 days during the month.
Thunderstorms average about three days in the month. ALhtough, with the amount of cold fronts coming through so far this year, that number might be a bit higher.
Hopefully this helps a bit.
Staff Meteorologist/Night Observer, KMWN (Mt Washington Obs., NH)