So how cloudy was it? At least in Flagstaff, which I consider to be representative of places in the Southwest, it was a very typical year in astronomical terms as far as nighttime cloudiness. June, unsurprisingly, was the clearest month with 17 'photometric' nights (cloud-free dusk-to-dawn), while July had just one, and December only two. We ended the year with 84 of those perfect nights, and another 69 nights with at least 3 hours consecutive clear. These added up to 1223 clear hours. The averages from my 36-year record are 93 +/- 18 photometric nights, and 1119 +/- 135 clear hours, so last year was well within one standard deviation of "normal". The nightly details (almost every night since June 1978) and annual summaries are posted at the Lowell Web site: http://www2.lowell.edu/Research/cloudiness_data/clouds.html \Brian -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.