tag:blogger.com,1999:blog-6168620747792092240.post2178862470626774668..comments2024-03-27T15:09:59.039-06:00Comments on Wasatch Weather Weenies: Is March Really Utah's Snowiest Month?Jim Shttp://www.blogger.com/profile/15799757451626876963noreply@blogger.comBlogger15125tag:blogger.com,1999:blog-6168620747792092240.post-71933476040977378752020-07-30T01:16:34.817-06:002020-07-30T01:16:34.817-06:00In the Wasatch, December, January, and March are c...In the Wasatch, December, January, and March are close enough in snowfall that which is the snowiest depends on which period of record you look at.<br /><br />In the Uinta Mountains, however, March is by far the snowiest month. December through February aren't even close.Scotthttps://www.blogger.com/profile/03796611425650413600noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-38054741777133968302017-03-09T13:54:49.571-07:002017-03-09T13:54:49.571-07:00Exactly! You will hear ME talking about the March...Exactly! You will hear ME talking about the March drought because next week is my timeshare week at Snowbird!<br /><br />I believe SLC residents remember the January droughts most because they are nearly always accompanied by inversions and particulate pollution.<br /><br />In my case tracking ski seasons, I tend to remember December droughts the most because they severely delay opening of ski terrain. They are also the scenario that slash skier visitation (even later in the season due to bad publicity) and hurt the bottom line of ski areas most severely. Tony Crockerhttp://bestsnow.netnoreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-29405434485787389392017-03-09T09:00:13.519-07:002017-03-09T09:00:13.519-07:00Ah Tony, I've been waiting for you to weigh in...Ah Tony, I've been waiting for you to weigh in. Thanks for sharing these numbers. Chances are we used the same data for AltaGuard, so perhaps my statement that March had the smaller standard deviation was an error made in haste. <br /><br />On the January drought, I think it is a classic case of confirmation bias based on anecdotal impressions. In other words, it doesn't really exist. You won't hear anyone talking about the "March Drought" over the next few days as they will all be riding their mountain bikes and not worrying about it. <br /><br />JimJim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-17686467645904455612017-03-09T08:58:48.754-07:002017-03-09T08:58:48.754-07:00This comment has been removed by the author.Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-59762033060325630732017-03-09T08:45:02.679-07:002017-03-09T08:45:02.679-07:00"I knew I would have to eventually run the nu..."I knew I would have to eventually run the numbers. Indeed, March has the smallest standard deviation of monthly snowfall (about 30 inches) of Nov-Apr. The largest standard deviation is actually December (about 46 inches), not January (41 inches)."<br /><br />For that AltaGuard data since 1946 I have standard deviations of Dec. 45.4, Jan. 41.2, Feb. 29.8 and Mar. 35.4 inches, making February the most consistent month.<br /><br />For Alta Collins since 1981 (probably cleaner data), I have standard deviations of Dec. 43.8, Jan. 43.2, Feb. 29.3 and Mar. 34.9, same result. <br /><br />"There is one other myth worth discussing here and that is the alleged January snowfall minimum. Again, that does not show up in long-term records. It could be that January features more variability from year to year, meaning a more feast or famine snow climate, but in terms of average snowfall, it is in a near dead heat with the other months. I leave the issue of variability for others to investigate. I need to get back to my day job."<br /><br />Really, this myth is so persistent that I would greatly appreciate a definitive opinion from Jim S on the subject. I've looked up those standard deviations before. I've also been through the Alta Collins daily snowfall posted on the Alta website since 2005. <br /><br />Consecutive snowless day streaks at Alta Collins since 2005:<br />Dec: 11,9,8,8,7,7,6,6,6,5,5,4,4,4,4,4,4,3,3,3,3,3<br />Jan: 11,10,9,9,8,8,8,6,5,5,5,4,4,4,4,4,4,3<br />Feb: 10,10,9,7,7,6,5,5,5,5,4,4,4,4,4,3,3,3,3,3<br />Mar: 12,11,10,9,9,8,7,6,6,5,5,5,4,4,4,4,3,3,3,3 <br /><br />I don't see a dime's worth of difference among those four lists above.<br /><br />I would appreciate your opinion of this data or any other metric you might think would be better to measure the incidence and severity of dry spells among the four winter months December - March.Tony Crockerhttp://bestsnow.netnoreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-46678687396244881992017-03-02T13:21:51.720-07:002017-03-02T13:21:51.720-07:00The data from Alta-Guard is from 1945/46 to 2015/1...The data from Alta-Guard is from 1945/46 to 2015/16. The period of record for the data from WRCC is less clear and would require some sleuthing to hunt down. Although the web site says 1905-2015, that would be for any weather element and I doubt the snowfall observations extend back to prior than WWII.<br /><br />Jim<br />Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-2817877955922397742017-03-02T12:07:53.869-07:002017-03-02T12:07:53.869-07:00Jim, How many years back do the numbers you provid...Jim, How many years back do the numbers you provide above draw from? Brandon Otthttps://www.blogger.com/profile/13059703656596423307noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-66981761765876783902017-03-01T17:26:26.934-07:002017-03-01T17:26:26.934-07:00January also has the highest SWE according to the ...January also has the highest SWE according to the data at Western Region Climate Center.<br /><br />Jim<br />Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-21169953049554877292017-03-01T17:24:16.095-07:002017-03-01T17:24:16.095-07:00Thanks for keeping facts factual! Any idea about U...Thanks for keeping facts factual! Any idea about Utah's wettest month (most SWE)? maybe with average warmer temps in March we get more water. Still not making it the snowiest month, but just a thought?Aaronhttps://www.blogger.com/profile/13670492511120125182noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-10887129667288511992017-02-28T12:50:24.177-07:002017-02-28T12:50:24.177-07:00Well I hadn't seen that one before. I could w...Well I hadn't seen that one before. I could write a book on this stuff (ha ha).<br /><br />Here's some reading for them:<br />https://books.google.com/books?id=7XA2okHw_jsC&lpg=PT57&ots=B-IVujuoJb&dq=The%20best%20deep-powder%20skiing%20is%20not%20found%20in%20the%20lightest%20snow%20Lachapelle%201962&pg=PT57#v=onepage&q=The%20best%20deep-powder%20skiing%20is%20not%20found%20in%20the%20lightest%20snow%20Lachapelle%201962&f=false<br /><br />Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-5368096305774514502017-02-28T12:39:55.868-07:002017-02-28T12:39:55.868-07:00Some of the claims are good for a laugh. Here'...Some of the claims are good for a laugh. Here's one from Brighton:<br /><br />"Brighton lies in the Wasatch Mountain range, which sits right next to the Great Salt Lake. This geographical blessing means that an average 500 inches of deep, light powder falls each year. That is enough snow to cover a four- story building. Brighton is the recipient of the coldest, driest snow in the world. Our snow averages a mere 6% water content…compared to say, Whistler’s 15-20%"Anonymoushttps://www.blogger.com/profile/03225995147018208369noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-9904492724240321302017-02-28T11:49:15.967-07:002017-02-28T11:49:15.967-07:00I knew I would have to eventually run the numbers....I knew I would have to eventually run the numbers. Indeed, March has the smallest standard deviation of monthly snowfall (about 30 inches) of Nov-Apr. The largest standard deviation is actually December (about 46 inches), not January (41 inches). So, "always delivers the snow" might be hyperbole, but March is more consistent on average. Of course, my main complaint is the conclusion that March "is Utah's snowiest month" as suggested by the article. <br /><br />All of this is fine and dandy, but I'd still take two Februaries instead of one February and one March...<br /><br />Jim<br />Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-45123426203255667472017-02-28T11:41:05.590-07:002017-02-28T11:41:05.590-07:00If Jan. suffers from feast of famine (which seems ...If Jan. suffers from feast of famine (which seems correct based on my memory), perhaps March is more consistent and therefore deserving of the title "always delivers the snow." Because an average Wasatch month (Dec.-March) can fairly be described as "delivering."Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-69106121544003084392017-02-28T09:14:16.509-07:002017-02-28T09:14:16.509-07:00You are right, but I'm always in need somethin...You are right, but I'm always in need something to draw you in :-).Jim Shttps://www.blogger.com/profile/15799757451626876963noreply@blogger.comtag:blogger.com,1999:blog-6168620747792092240.post-67006913361658559792017-02-28T09:13:06.371-07:002017-02-28T09:13:06.371-07:00I think it goes without saying that the Ski Utah a...I think it goes without saying that the Ski Utah article is mostly meant to address the issue that booking decrease significantly in the Spring. They're just saying, "Hey, we still get lots of snow thru the end of the March." You're right though, it's remarkable how consistent our snowfall is from December-March. November and April aren't all that far behind either. Anonymousnoreply@blogger.com