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RodneyS

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About RodneyS

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  • Four Letter Airport Code For Weather Obs (Such as KDCA)
    KIAD
  • Gender
    Male
  • Location:
    Oak Hill, VA

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  1. RodneyS

    Our region's extreme run

    September 2018 precipitation at DCA was 9.73 inches, good enough for 5th on the all-time DC list. January-September 2018 precipitation at DCA was 49.83 inches, third on the all-time list, behind only 1886 (50.65) and 1889 (50.63).
  2. DCA _ NYC _ BOS __ ORD _ ATL _ IAH ____ DEN _ PHX _ SEA 3.5 3.8 3.5 2.9 3.1 2.2 -1.5 -1.1 0.3
  3. RodneyS

    Our region's extreme run

    I don't have IAD figures at the moment, but DCA's 2018 astronomical summer (June 21-September 23) was interesting, as the average was 79.6 degrees, good enough for 5th highest all-time on the DC list (1980 was highest at 81.7). However, the 2018 DCA average astronomical summer maximum of 87.1 was only 26th on the all-time list, whereas the average minimum of 72.20 was 3rd, behind only 2016 (72.54) and 1980 (72.53).
  4. RodneyS

    Our region's extreme run

    We are now up to 7.54 inches of precipitation at DCA in September 2018. That means that the previous April-September DC record of 39.91 inches established in 1889 has fallen. The April-September 2018 total at DCA now stands at 39.99 inches, and the May-September 2018 total there is now 36.40 inches.
  5. RodneyS

    Our region's extreme run

    Breaking news -- literally. With 2.76 inches of precipitation already recorded at DCA today and 3.57 so far for September 2018, the previous May-September DC record total of 32.26 inches set in 1934 has now been exceeded, at 32.43 inches. Let's see how high we go by September 30th.
  6. RodneyS

    Our region's extreme run

    August 2018 continued the rainy trend at DCA, at 5.19 inches. That brings the May-August 2018 precipitation total there to 28.86 inches, tied with May-August 1878 for second on the all-time DC list, behind only May-August 1886, at 30.41 inches.
  7. DCA _ NYC _ BOS ___ ORD _ ATL _ IAH ___ DEN _ PHX _ SEA 2.6 3.0 3.1 4.2 1.0 0.8 1.8 1.0 -0.3
  8. RodneyS

    Two Days in August in Washington, DC

    The beat goes on. This year, DCA recorded 0.36 inches of precipitation on August 12th and nothing on August 15th. So, the updated totals, 1871-2018, are: August 12: 43.43 inches total; 21 days with a trace, 54 days with measurable, 12 days with at least an inch, 5 days with 2+ inches. August 15: 12.45 inches total; 16 days with a trace, 47 days with measurable, 5 days with at least an inch, no days with 2+ inches.
  9. RodneyS

    Our region's extreme run

    While DCA could not match BWI's record-breaking July 2018 precipitation, the 9.73 inches recorded there was 4th on the all-time DC July list, and the most since the record 11.06 inches in July 1945. Also, the May-July 2018 total of 23.67 inches at DCA was third on the all-time list for those three calendar months, and the most in 129 years. Only May-July 1889, at 23.83 inches, and May-July 1886, at 27.98 inches, had more precipitation in those three months.
  10. DCA _ NYC _ BOS ___ ORD _ ATL _ IAH ___ DEN _ PHX _ SEA 1.0 1.7 2.9 2.2 -1.3 -0.1 1.7 -0.9 -0.1
  11. DCA _ NYC _ BOS ___ ORD _ ATL _ IAH ___ DEN _ PHX _ SEA 2.0 1.0 1.5 2.0 0.0 1.7 2.7 2.5 2.1
  12. RodneyS

    Our region's extreme run

    And May 2018 has the distinction of being an exceptionally warm, and yet still rainy, month in DC. Average temperature of 72.4 degrees at DCA places it third on the all-time DC list behind only 2015 (73.2) and 1991 (73.0). Further, the warm-up from April 2018 was 17.5 degrees, second only to April-May 1911 (18.8 degrees). And yet precipitation was 8.73 inches, which is 6th on the all-time DC May list (May 1953 is # 1, at 10.69 inches).
  13. DCA _ NYC _ BOS ___ ORD _ ATL _ IAH ___ DEN _ PHX _ SEA -0.8 -1.4 -1.3 -0.4 -0.8 1.8 4.8 3.0 0.4
  14. RodneyS

    Our region's extreme run

    You're on to something. May 12-19, 2018 was indeed the first time in DC weather history that eight straight days each recorded at least 0.15" of precipitation. The previous record for that amount or more was seven straight days, set in July 1938 and equaled in July 1941; see http://xmacis.rcc-acis.org/#. Click on that link, then select "Single Station" and click on "Consecutive Days." For "Criteria" select "Precipitation" then type in (more or equal to) "0.15." Then select the "Washington Area" station and click "Go." As I just posted to an article on the Washington Post's Capital Weather Gang: "Rainy to be sure, but to put things in perspective, DC's record single-day rainfall is 6.39 inches, on August 23, 1933. More recently, DCA recorded 9.08 inches during the five-day period September 22-26, 1975."
  15. RodneyS

    Our region's extreme run

    I have just discovered that the above statement is not true for 0.4", as only 2011, 1975, and 1937 also had 5-day streaks of at least 0.4 inches. However, I would have thought that the statement would have more logically read: "It has been an unusually wet pattern over the last week. For DCA (Reagan National), there has been at least 0.4" of rain each of the last 7 days. This is the longest streak on record. The previous longest was 5 days in 2011, 1975, and 1937. Precipitation records date back to 1871."
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