Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.Īll data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition, by Jean Meeus.Īll other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis. To get a sense of how much these sources agree with each other, you can view a comparison of Morongo Valley and the stations that contribute to our estimates of its temperature history and climate. Barstow Daggett County Airport (KDAG, 12%, 57 mi, north, -656 ft elevation change).March Air Reserve Base (KRIV, 19%, 40 mi, west, -1,037 ft elevation change).San Bernardino International Airport (KSBD, 18%, 38 mi, west, -1,414 ft elevation change).Twenty-Nine Palms, Marine Corps Air-Ground Combat Center (KNXP, 32%, 29 mi, northeast, -522 ft elevation change).

Palm Springs International Airport (KPSP, 19%, 16 mi, south, -2,165 ft elevation change).

The stations contributing to this reconstruction are: The estimated value at Morongo Valley is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Morongo Valley and a given station.

There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Morongo Valley.įor each station, the records are corrected for the elevation difference between that station and Morongo Valley according to the International Standard Atmosphere, and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. This report illustrates the typical weather in Morongo Valley, based on a statistical analysis of historical hourly weather reports and model reconstructions from Januto December 31, 2016.

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