wxdude64 Posted March 11, 2016 Share Posted March 11, 2016 I looked to 2000, has happened a few times. Most recently in 2011, April 4.. 43/86. Dulles actually has 5 above 50 but not that shocking for its location I suppose. 4/11/1977 87 33 54 4/3/1981 86 34 52 1/28/1987 35 -17 52 3/23/1994 83 32 51 4/18/1985 84 34 50 That -17 35 is the coolest one on that list IMO Yes, literally.....lol. That is an amazing swing, usually it requires a spring/fall sun and dry air to create numbers like that. Link to comment Share on other sites More sharing options...
RodneyS Posted March 20, 2016 Share Posted March 20, 2016 Pretty interesting 2015-16 meteorological winter at DCA, as despite the blizzard and relative cold of January, the average temperature was 42.0 degrees -- good enough for an 8th place tie for warmest in DC history. The last Super El Nino, in 1997-98, was the 6th warmest DC winter at 42.4 degrees. However, that winter lacked the variability of this one, with a standard deviation from the average daily winter temperature of only 6.1 degrees, compared to 10.7 degrees this season. In fact, this winter at DCA had the highest standard deviation since the winter of 1989-90, which came in at 11.1 degrees. DCA astronomical (December 21-March 20) and composite (December 1-March 20) winters were even warmer, at 42.8 and 43.9 degrees, respectively. Those averages were good enough for a 5th place tie and 3rd place, respectively, all-time in DC. The comparable averages for 1997-98 were 42.5 and 42.4. The warmest astronomical and composite DC winters each occurred during a weak La Nina in 2011-12, at 45.9 and 45.6, respectively. Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted March 28, 2016 Share Posted March 28, 2016 No. Mar 2012 was a historic monster. Mar 2010, maybe. I don't think I was that far off the mark. So far the departure at BWI is +6.7... Not as hot as March 2012 (+10.1), but certainly much hotter than March 2010 (+4.9). We're still in the running for a top ten hottest March (currently tied for 8th). Link to comment Share on other sites More sharing options...
wxdude64 Posted March 31, 2016 Share Posted March 31, 2016 For all the 'heat' talk this month (and I finished a +5.2 here), I find it amazing I am exactly even 0.0 for first three months of this year!?! 36.2/36.2 Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted April 1, 2016 Share Posted April 1, 2016 BWI finished tied for 6th hottest March (50.0 degrees, +6.4 departure). Did DCA or IAD make top ten? Link to comment Share on other sites More sharing options...
RodneyS Posted April 1, 2016 Share Posted April 1, 2016 BWI finished tied for 6th hottest March (50.0 degrees, +6.4 departure). Did DCA or IAD make top ten? Yes. DCA averaged 53.5 degrees, which was 4th all time -- 3.3 degrees cooler than March 2012. IAD averaged 50.6 degrees, which was 2nd all time -- 3.7 degrees cooler than March 2012. Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted April 6, 2016 Share Posted April 6, 2016 Record low already set at BWI (24 so far). Previous record was 26 set in 1898. Link to comment Share on other sites More sharing options...
RodneyS Posted April 6, 2016 Share Posted April 6, 2016 Record low already set at BWI (24 so far). Previous record was 26 set in 1898. Dulles also recorded a low of 24 this morning, tying the record for April 6th set in 1966. Link to comment Share on other sites More sharing options...
RodneyS Posted May 1, 2016 Share Posted May 1, 2016 Final three days of April with maximums in the 50s at DCA marked the first time for anything like that since 1966, when the final four days had maximums ranging between 46-59. Link to comment Share on other sites More sharing options...
RodneyS Posted May 2, 2016 Share Posted May 2, 2016 Final three days of April with maximums in the 50s at DCA marked the first time for anything like that since 1966, when the final four days had maximums ranging between 46-59. Assuming that the temperature does not rise to 60 degrees before midnight, an all-time DC record will be set, with each day April 28-May 1 failing to reach 60. Link to comment Share on other sites More sharing options...
RodneyS Posted May 7, 2016 Share Posted May 7, 2016 I just posted this on the Capital Weather Gang board: " . . .11 straight days of measurable precipitation at DCA. .. According to my records, that sets the all-time DC record (back to 1871) for most consecutive days of measurable precipitation. I believe that the previous record was ten (twice: August 12-21, 1873 and July 17-26, 1938). During August 9-24, 1920, there were 16 straight days of at least a trace of precipitation, but only seven straight days of measurable." Link to comment Share on other sites More sharing options...
RodneyS Posted May 7, 2016 Share Posted May 7, 2016 That's incredible. What's the record at BWI? I don't know, but PrinceFrederickWx might. Link to comment Share on other sites More sharing options...
RodneyS Posted May 8, 2016 Share Posted May 8, 2016 I just posted this on the Capital Weather Gang board: " . . .11 straight days of measurable precipitation at DCA. .. According to my records, that sets the all-time DC record (back to 1871) for most consecutive days of measurable precipitation. I believe that the previous record was ten (twice: August 12-21, 1873 and July 17-26, 1938). During August 9-24, 1920, there were 16 straight days of at least a trace of precipitation, but only seven straight days of measurable." Early morning rain at DCA extends the DC record measurable precipitation streak to 12 days. Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted May 8, 2016 Share Posted May 8, 2016 I don't know, but PrinceFrederickWx might. Nope, I don't know either, sorry! If famartin were still around I'm sure he would know... Link to comment Share on other sites More sharing options...
RodneyS Posted May 9, 2016 Share Posted May 9, 2016 Early morning rain at DCA extends the DC record measurable precipitation streak to 12 days. And late morning rain on Monday extends the streak to lucky 13. Link to comment Share on other sites More sharing options...
RodneyS Posted May 11, 2016 Share Posted May 11, 2016 And late morning rain on Monday extends the streak to lucky 13. DCA sneaked in 0.01 inch late last night, and has already recorded 0.12 inches this morning, so the measurable precipitation streak is now 15. Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted May 11, 2016 Share Posted May 11, 2016 BWI had measurable rain today already so that's 15 days with any rainfall (including Trace amounts). The record for that is 17 days, from 3/31/1935 - 4/16/1935. There was only a Trace on May 9 so the measurable streak ended then. If anyone from LWX is reading this, thanks for tracking the records in the Forecast Discussion page! Link to comment Share on other sites More sharing options...
RodneyS Posted May 11, 2016 Share Posted May 11, 2016 BWI had measurable rain today already so that's 15 days with any rainfall (including Trace amounts). The record for that is 17 days, from 3/31/1935 - 4/16/1935. DC has that very same record. I originally thought that the "any precipitation" record streak in DC was 16 (August 9-24, 1920), but I missed the 1935 streak. Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted May 13, 2016 Share Posted May 13, 2016 BWI's streak ended yesterday- so did my backyard. Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted May 13, 2016 Share Posted May 13, 2016 Also... top ten coldest May on record watch for BWI? Maybe... Link to comment Share on other sites More sharing options...
RodneyS Posted May 13, 2016 Share Posted May 13, 2016 BWI's streak ended yesterday- so did my backyard. The same at DCA -- not even a trace there, so the new DC record of consecutive days with measurable precipitation goes into the books at 15, April 27-May 11, 2016. However, the IAD streak of days with at least a trace of precipitation is alive at 17 days, April 26-May 12, with the likelihood of extending to 19 days. Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted May 14, 2016 Share Posted May 14, 2016 I wonder what the record is at the airports for the most number of days with rain in any given month? By the time this month is over we would have to be close to the record, I think. Link to comment Share on other sites More sharing options...
RodneyS Posted May 14, 2016 Share Posted May 14, 2016 However, the IAD streak of days with at least a trace of precipitation is alive at 17 days, April 26-May 12, with the likelihood of extending to 19 days. 19 consecutive days it is, but today is likely the end. Still, that beats the old record by six days. Here is the new Top 3 for consecutive days with at least a trace of precipitation at IAD: 1) April 26-May 14, 2016 (19) 2) May 5-17, 1989 (13) 3) June 13-25, 1972 (13) Link to comment Share on other sites More sharing options...
RodneyS Posted May 15, 2016 Share Posted May 15, 2016 19 consecutive days it is, but today is likely the end. Still, that beats the old record by six days. Here is the new Top 3 for consecutive days with at least a trace of precipitation at IAD: 1) April 26-May 14, 2016 (19) 2) May 5-17, 1989 (13) 3) June 13-25, 1972 (13) Dulles defied the forecast today and recorded a trace of precipitation, to extend the streak to 20 days. Link to comment Share on other sites More sharing options...
PrinceFrederickWx Posted May 16, 2016 Share Posted May 16, 2016 BWI tied the record low this morning (37). Link to comment Share on other sites More sharing options...
RodneyS Posted May 16, 2016 Share Posted May 16, 2016 BWI tied the record low this morning (37). And IAD also tied the record low this morning, but at 36 degrees. Link to comment Share on other sites More sharing options...
RodneyS Posted May 17, 2016 Share Posted May 17, 2016 Dulles defied the forecast today and recorded a trace of precipitation, to extend the streak to 20 days. Evidently, the Sunday Dulles report has been corrected to delete the trace of precipitation, and so the official record streak of consecutive days with at least a trace of precipitation there reverts back to 19, April 26-May 14, 2016. Link to comment Share on other sites More sharing options...
RodneyS Posted May 24, 2016 Share Posted May 24, 2016 Today DCA finally reached 80 degrees in May, the second-latest initial 80-degree May reading in DC history. The latest remains May 26, 1935. Link to comment Share on other sites More sharing options...
RodneyS Posted May 31, 2016 Share Posted May 31, 2016 Today DCA finally reached 80 degrees in May, the second-latest initial 80-degree May reading in DC history. The latest remains May 26, 1935. After failing to reach 80 degrees until May 24th, DCA has now recorded eight consecutive maximums in the 80s. When was the last time that May 24-31 each had maximums in the 80s in DC? Never since official daily temperature record-keeping began in 1872. The closest previously was in 1911, when all but May 30th had maximums in the 80s. However, that day reached an even 90. Link to comment Share on other sites More sharing options...
RodneyS Posted June 1, 2016 Share Posted June 1, 2016 I wonder what the record is at the airports for the most number of days with rain in any given month? By the time this month is over we would have to be close to the record, I think. I have not checked every month in DC history, but I just noticed that May 1953 had 24 days with at least a trace of precipitation at DCA, with 17 days of measurable precipitation there. The corresponding figures for May 2016 are 22 and 19. So, DCA did not exceed the former total this May, but did exceed the latter total. Link to comment Share on other sites More sharing options...
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