A Dewpoint Climatology in the Capital District of New York Brian Montgomery & Cameron Paquette

Motivation No current dewpoint climatology for our region Times Union Science Reporter Many important applications: Forecasting convection Wet-bulb processes Heat indices Climate Variability

Data Records Downloaded NCDC/NCEI surface hourly data Cities: Albany, Poughkeepsie, Glens Falls Performed calculations from 1980-2016 Utilized 00z-00z daily timeframe Questionable observations were removed* Sub-hourly exceptional high values during convection Maintenance on instrument Anomalous observations

Could possibly add regression lines to this plot Could possibly add regression lines to this plot. Might be worth noting where some trends in dewpoint between the three cities are the same or different.

Could possibly add regression lines to this plot Could possibly add regression lines to this plot. Might be worth noting where some trends in dewpoint between the three cities are the same or different. El Nino Years highlighted

Albany, NY

Monthly Averages May replace this for Box-and-whisker plots

Maxima by Month As these lack of high values in recent years result of implementation of ASOS?

Minima by Month Notice the same “pattern” does not appear for the minimum's.

Albany Seasonal Averages Blue line is averages taken at each year, black line is the regression

Extremes by City Albany Glens Falls Poughkeepsie Max: 79oF Min: -36oF 1500 UTC 16 Jun 1981 1200 UTC 25 Dec 1980 2300 UTC 18 Jul 1982 2200 UTC 11 July 1984 2000 UTC 12 Aug 1988 2100 UTC 27 Jul 1997 Max: 82oF Min: -27oF 1700 UTC 4 Jul 1983 1200 UTC 27 Jan 1994 Max: 81oF Min: -41oF 2000 UTC 6 Jul 1986 1100 UTC 27 Jan 1994

Future Work ENSO Correlation Daily Climatology Web Page Development Expanding to other stations Possible NCEI and XMACIS implementation? Additional suggestions? If there were other things I forgot to mention, feel free to add onto the slides!

Acknowledgements Tom Wasula Ian Lee Assistance within excel spreadsheets, calculations, updating data, generating ideas and review of this data