Ian

Dulles got another record low, 15.

IAD ticked above freezing yesterday (mar 25) but still the coldest high so late in the year at 33.

Too bad Dulles record is so short. Everything there feels like a gimme.

Time to have the sads again I was just leaving work around now four years ago.. not to return for a week.

That makes sense as NWS does 12z for things like snow depth. So then I guess the other question/assumption is that lows are as reported for the day shown? And same for snow depth? There is probably a guide I should track down.

Anyone know this answer? In the charts below I ran highs in July 2011 against eachother for DCA and two local coops. The initial way was just putting the dates next to eachother but it looks like it fits better assuming the co-ops are reporting PRIOR days highs rather than the date they match with. Matt mentioned something similar in txt about snow but I guess my question is can it just be assumed it's always reporting for the day prior rather than the day of on a co-op? Here's the two examples. Second with the shift.

Yeah, I didn't get that part. Last time I used it was to pull EWR data to look at super bowl snow odds -- a post still buried for the future maybe. But I asked for english and it still gave me mm etc which I had to convert. They matched up with F6s though at least after. I tried English just now and it seemed to work though hopefully no conversion issues.

Thanks. Probably should have known that. Getting handed the data for the local airports made me lazy. Have used the new site a bit before.. not sure I saw it before revamp.

I've probably asked this before and lost the link but anyone know where you can download co-op data? Curious because today the Post used a graphic based on the Arboretum and the numbers were considerably different than DCA. Makes me interested in running some comparisons.

Guess this is as good a place as any.. rehash of old news but most of our stories were temp/precip extremes in 2013: Top 5 weather stories of the year around here http://www.washingtonpost.com/blogs/capital-weather-gang/wp/2013/12/27/top-five-d-c-area-weather-stories-of-2013/

Yeah this stuff is painful at this point. It might be imaginary.

For First Time in 20 Years, Cold Records May Beat Warm http://www.climatecentral.org/news/for-first-time-in-20-years-cold-records-may-beat-warm-in-u.s-16790

Also, follow up on the above. Two charts, and posted to FB last night. "High of 39 today (assuming it holds) will be third day this month with highs below 40 in DC. Most in Nov since 1956. This is on top of our coldest Nov day (hi) since 1987 and coldest two day Nov stretch (avg) since 1970 last Sunday and Monday. Didn't touch anything of major note on the lowest lows of the stretch but quite impressive these days. "

According to Rick Grow: @GrowWeather: DC (Reagan National) just posted its fourth-coldest last week of November with an avg temp of 34.8F. Only 1938, 1930 & 1956 were colder.

I guess this could go here.. a look at how cold this coming shot is for DC should it happen: http://www.washingtonpost.com/blogs/capital-weather-gang/wp/2013/11/22/abnormal-cold-to-close-november-possibly-coldest-in-decades/

Bump

Somehow I've not seen this site before. It's pretty nice. http://www.sercc.com/perspectives Jason linked to it on CWG today.

prob should have included something like this but didn't think of it till today.

A look at sub 90 streaks in July Aug recently: http://www.washingtonpost.com/blogs/capital-weather-gang/wp/2013/08/07/missing-90-degree-high-temperatures-in-d-c/

Tying anything to global warming is tough to steer from because it doesn't involve a lot of research and it guarantees comments. I need to look at the frequency of 79+, 78+ type lows.. close but not 80+. 80+ is kind of arbitrary other than the fact that we all focus on the starts of 10s naturally. AT DC at least the lows have been impacted considerably more than the highs though I suppose it's arguable that we are seeing more frequency of the higher level highs if not the highest temps. My in depth knowledge of other stations is limited--there are some interesting comparisons between DC and Balt when the Balt station was downtown though.

21 80+ last 4 yrs.. 31 prior.

More fodder for people to attack DCA. Not the same I guess since everyone else broke it at this pt probably. Oh well.. I'll keep at it next winter.

no bump this year? remember how awesome it was when boston got no snow?

Two years down with a 2 incher in DC. Can we make it three? http://wapo.st/1368zK8

Come back to the mid Atlantic forum Mark. We miss you.