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The past week has seen localized soaking rains across much of NJ, though not everywhere has gotten clobbered. The map below shows rainfall totals from Sunday morning the 13th through the morning of the 16th. Over this roughly 72 hour interval as much as 8.52” fell in Howell Township (Monmouth County), followed by Belmar (Monmouth) with 7.42”, Wall Township (Ocean) 7.22”, Millstone Township (Monmouth) 5.98”, and Raritan (Somerset) 5.42”. To demonstrate the local variability of the precipitation, four Bridgewater (Somerset) locations received 5.09”, 4.55”, 4.41” and 3.88”. Differences were even more pronounced over distances of several tens of miles. For instance, only 20 miles from Howell, rainfall totaled just 0.89” at Seaside Heights (Ocean) to the south and 2.42” in Rumson (Monmouth) to the north.

The record book on the winter of 2013-2014 officially closes on June 30. Given the recent streak of hot weather, and the summer solstice this Saturday, we're confident it's safe to run the calculations on seasonal snow totals a few days early. Indeed it will be hard for many New Jersey residents to forget this very active, cold, and snowy winter.

From first flake to last, this past season ranked 7th snowiest of the past 120 years. The statewide average snowfall was 54.3”, which is 28.4” (or 210%) above average. The most snow fell up north but ranked lowest of the three regions (14th) due to its normally higher seasonal average. The south had the least snow but ranked 9th highest. This was the third season on record that each of the three divisions recorded over 50"; the other two occurred in 1898-99 and 1957-58. All regions shared the snow load similarly through January. Snow was more plentiful in northern and central areas in February. The situation was reversed, exceedingly so, in March, when three accumulating events impacted the south but missed the other two regions.

May 2014 had a difficult time establishing an identity. What began with a storm that carried over from April 30th and resulted in the 7th largest flood of the past century in the Raritan basin on the 1st (see the April narrative for discussion of this event), later included some warm days, late freezes in a few locations, severe thunderstorms with hail in others, and a spectacular Memorial Day. Overall, May averaged 62.1°, which is 1.3° above average (compared to the 1981-2010 average). This ranks as the 35th warmest (tied with 1962) in the 120 years back to 1895. Precipitation averaged 5.18", which is 1.18" above average and ranks as 19th wettest. This value includes the considerable rain that fell on April 30th at National Weather Service Cooperative Stations that report during the morning hours (see April narrative for a full explanation).

Was it a drier-than-average April? Was it a wetter-than-average April? If only it hadn't rained heavily on the last day of the month! Certainly this is a strange beginning to this monthly weather narrative. Let me explain before we get to the numbers. Most National Weather Service Cooperative observers, of which there are several dozen in New Jersey, take their daily observations in the 7-8 AM time range. So does nearly every NJ CoCoRaHS observer. These observations are recorded for the calendar day at hand, thus a day's weather records are complete as of the observation time. This means that any precipitation that occurs after the daily observation gets recorded the next morning (day). This is something that must be understood when evaluating daily precipitation reports, however, it does not make any difference in monthly totals except on the first and last day of the month. One of these exceptions occurred, in a big way, in April…or was it May?! Torrential rain fell during the daylight hours into the evening of April 30, part of an event that began lightly during the daylight hours of the 29th and ended just after observation time on the morning of May 1st (yes, meaning May 2 observations also were involved in storm totals). What up until then had been a somewhat dry April suddenly became a wet month…if you waited until midnight to take your observations. And believe it or not, some COOP stations do have observations taken at midnight. Confused? Can't blame you…