Ian Posted January 6, 2011 Share Posted January 6, 2011 some have seen this, im just moving it here im starting to look over winter stats.. here are some early ones.. i will add more as they come and are worthwhile. plz feel free to include your own. ==================== TEMPERATURES Final and First Freeze Dates, by Year at Washington D.C. Added: November 9, 2010 Highs and Lows Below Freezing by Month Added: Sept 27, 2010 note: not NCDC method Link to comment Share on other sites More sharing options...
Ian Posted January 6, 2011 Author Share Posted January 6, 2011 PRECIPITATION First and Last Accumulating Snowfall by Winter Season since 1887-1888 Added: November 7, 2010 (updated: November 9, 2010) Days with Accumulating Snow (.1"+) and Days with Snow Cover, by Winter Season at Washington Added/updated: November 9, 2010 Continuous Days with 1" Snow Cover at Washington, D.C. and Percentage of Total -- 1892-93 thru Present Added/updated: November 13, 2010 Top Snowstorms by Month Added: November 3, 2010 6"+ Snowstorms Added: November 3, 2010 *Thru 2010 AVG Snowfall Across D.C. area Added: November 3, 2010 (NWS [url=" Link to comment Share on other sites More sharing options...
jonjon Posted January 6, 2011 Share Posted January 6, 2011 It just amazes me that the last freeze last year was 2/27. The entire month of March without a freeze ... in a spectacular winter to boot! Link to comment Share on other sites More sharing options...
mattie g Posted January 6, 2011 Share Posted January 6, 2011 It's amazing to think that, after the winter we had last year, our last freeze and last snowfall occurred on the same day, Februay 27, which happened to be the earliest last freeze *ever* according to those stats. I like the idea of a last freeze on February 27. As well as 70+" of snow in the winter. Wish we could get that same setup more often. Link to comment Share on other sites More sharing options...
haudidoody Posted January 6, 2011 Share Posted January 6, 2011 A nice collection that brings into clear perspective just what a pathetically snowless town this is. I can't wait to get started on my tropical garden once I buy a house. 6 6"+ events in the decade that was the aughts, lol. What a nightmare. Link to comment Share on other sites More sharing options...
Fozz Posted January 6, 2011 Share Posted January 6, 2011 A nice collection that brings into clear perspective just what a pathetically snowless town this is. I can't wait to get started on my tropical garden once I buy a house. 6 6"+ events in the decade that was the aughts, lol. What a nightmare. And that's DC's climo. We need to realize that a 6" event is considered very significant, and there will be many years in which it doesn't happen. Link to comment Share on other sites More sharing options...
mattie g Posted January 6, 2011 Share Posted January 6, 2011 And that's DC's climo. We need to realize that a 6" event is considered very significant, and there will be many years in which it doesn't happen. Significant in regards to climo, but insignificant for many who love snow. That's the dichotomy of being a snow lover in this area. Doesn't mean we can't still complain about it! C'est la vie. Link to comment Share on other sites More sharing options...
clskinsfan Posted January 11, 2011 Share Posted January 11, 2011 And that's DC's climo. We need to realize that a 6" event is considered very significant, and there will be many years in which it doesn't happen. It is surprising that DC has only a 53% chance of having a 6 inch storm in any given winter. The data above is great. Thanks for taking the time to compile it. Link to comment Share on other sites More sharing options...
Fozz Posted January 11, 2011 Share Posted January 11, 2011 It is surprising that DC has only a 53% chance of having a 6 inch storm in any given winter. The data above is great. Thanks for taking the time to compile it. Well of course, DCA will often record a storm of slightly less than 6" while surrounding areas get that amount, so I think it is underdone. And of course, I am not the one who compiled it. Link to comment Share on other sites More sharing options...
DCMetroWinston Posted January 11, 2011 Share Posted January 11, 2011 awesome data Link to comment Share on other sites More sharing options...
Fozz Posted January 13, 2011 Share Posted January 13, 2011 I felt like adding a bit of stats myself, for Baltimore. Average snowfall by decade For example, the 1990s is defined by 1990-91 to 1999-00 1883-84 to 1889-90: 24.1" 1890s: 26.6" 1900s: 24.3" 1910s: 20.3" 1920s: 20.4" 1930s: 22.7" 1940s: 21.1" 1950s: 18.0" 1960s: 31.1" 1970s: 17.2" 1980s: 18.7" 1990s: 18.6" 2000s: 23.1" Long term average: 22.0" 1981-2010 average: 20.2" Back in the day, Baltimore averaged about 25", but it has since declined over the years, and now the 30 year average is around 20", which is better than before since the ****ty 1970s is not included anymore. For all of our snow drought misery, the 2000s was a good decade for snow because of our blockbuster years, and the average snowfall that decade was along the lines of Baltimore's long term average. And I'm glad that BWI's 30 year average is once again above 20". The only "problem" with this data is that BWI wasn't the station for Baltimore's weather until the 1930s or 1940s; before, everything was recorded in the city. I think the same is true for DC and DCA. All this info is based on these totals http://www.erh.noaa....bwi/bwisnow.txt Link to comment Share on other sites More sharing options...
Fozz Posted January 13, 2011 Share Posted January 13, 2011 By the way, Baltimore's long term median snowfall is 19.6". Not bad at all. Link to comment Share on other sites More sharing options...
Ian Posted January 13, 2011 Author Share Posted January 13, 2011 The only "problem" with this data is that BWI wasn't the station for Baltimore's weather until the 1930s or 1940s; before, everything was recorded in the city. I think the same is true for DC and DCA. yes. dca began in the 1940s. the mileage move from the old location is presumably considerably less than the balt to bwi move though i dont know the specifics on that one. i think over the course of a few years it could be noticeable etc, but over the course of a century + you still see the same trend you would if the location did not move. i would guess many long standing climo locations have similar moves involved. Link to comment Share on other sites More sharing options...
Fozz Posted January 13, 2011 Share Posted January 13, 2011 And of course, here's the average snowfall map Link to comment Share on other sites More sharing options...
gymengineer Posted January 14, 2011 Share Posted January 14, 2011 Hmm.. another interesting tidbit from the stats-- none of the top 10 continuous 1" snow cover stretches feautured a top-10 snowstorm. So, it confirms what we surmise on here regularly-- that sustained super-cold patterns don't have historic snowstorms during the peak of the cold. Going through the top-10 snowstorms in that table, many of them were towards the end of the cold stretch, so the snow melted at a decent rate after the storm. The most recent 1" continuous snow cover stretches that lasted more than 20 days were in 12/89 and 1/77--- periods known much more for the extreme cold than the prolific snowfall. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.