Quote:
Originally Posted by katbhappy
Is this true? This is what the data is telling me off the internet? 
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Variables, time of year and location determine how much sun you get in the BR Valley:
(NOTE: the valley is 71 miles long from Lolo to Sula; avg width 5 miles).
1/ where you live in the valley. many times N end of valley will be 'socked in' all day and 30/40 miles to the south it'll be clear all day.
2/ which side of the valley you live on.
3/ upper level wind direction.
4/ Many, many times I've seen the sky over the center 3 miles of the valley clear all day, and the one mile wide 'strip' on each side of the valley will be under cloud cover. Upper level wind directions/currents many times keep the clouds over the Bitterroots on the east and the Sapphires on the east.
5/ Winter time valley "weather inversions" will on occasion block the sun for several days at a time.....(very ugly and depressing). Yet, if you drive "up in elevation" about 2000/3000 feet you'll be in Bright Blue skys and full sun, (and usually about 20 degrees warmer.
i.e. 20 F on valley floor(avg 3400') and socked in.... and will be 40F at 5400' and clear.
Just as an added bit of local weather info:
Highest temp at my location (several times in 30 yrs): 103F
Lowest temp at my location over the last 30 years: minus 42F
IMHO: "Horse shi@" months....Nov, Dec, Jan, Feb, March & April.
"Great months": June, July, Sept & 1/2 of Oct.
August (and sometimes early Sept can be "TERRIBLE" due to
constant--I mean constant--wild fire smoke in the valley.
Example: 8/6/2000 to 9/16/2000.
(when I say terrible, I mean TERRIBLE!!).
May can go either way....sometimes good...sometimes bad.
Oh, I almost forgot..........Can you say: "Black Ice!"
P.S. Don't confuse the The "Missoula Valley" with the "Bitterroot Valley". They differ in many respects.