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Flash flooding and residential evacuations in Helmetta on August 22
Flash flooding and residential evacuations in Helmetta (Middlesex County) on August 22. Photo by Mayor Chris Slavicek.

Whether the thermometer was reading high or low this August or whether rain was falling or not, one factor that most always had to be considered was the high level of humidity. The “Dog Days” of summer indeed. Of course, there was much else to consider this month, including contributions of rain from two tropical storms, one of which brought the largest crests on some rivers since May 1, 2014, 11 days where one or more locations received at least 2.00” of rain, and 16 days where the high temperature reached 90° or higher somewhere in the state.

Adding up all the rainfall, the statewide monthly average was 6.87”. This is 2.30” above the 1991–2020 normal and ranks as the 15th wettest August since 1895. The northern climate division led the way with 7.89” (+3.33”, 11th wettest), followed by the coastal area with 6.65” (+2.05”, 21st wettest), and the southern division at 6.21” (+1.64”, 27th wettest).

The statewide average temperature of 75.9° is 2.3° degrees above normal and ranks 4th warmest. Seven of the top 10 and 13 of the warmest 20 have occurred this century. The warmth was most strongly a function of elevated nighttime temperatures, which, for NJ, averaged 66.9°. This is 3.6° above normal and ranks 2nd warmest. The maximum temperature averaged 84.9°, some 1.1° above normal and ranks 18th warmest.

Latest Extremes

City, State Temp
Fortescue, NJ 67
West Cape May, NJ 65
Atlantic City Marina, NJ 64
Lower Alloways Creek, NJ 62
Little Egg Harbor Twp., NJ 62
City, State Temp
Pequest, NJ 46
Kingwood, NJ 47
Walpack, NJ 48
Oswego Lake, NJ 48
West Deptford, NJ 48
most current information as of Sep 27 5:50 AM

Latest Conditions & Forecast

New Brunswick, NJ

Rutgers University Meteorology Program

52°F

Wind

3 mph from the SW

Wind Gust

4 mph from the SSW

Sunny
79 °F
Mostly Clear then Slight Chance T-storms
62 °F
Chance T-storms then Showers Likely
77 °F
Showers Likely then Slight Chance Showers
52 °F
Sunny
70 °F
Partly Cloudy
52 °F
Sunny
67 °F
Mostly Clear
48 °F
Sunny
69 °F
Mostly Clear
49 °F
Sunny
70 °F
Mostly Clear
51 °F
Mostly Sunny
71 °F

Today

Sunny, with a high near 79. West wind 5 to 15 mph.

Tonight

A slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly clear, with a low around 62. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

Tuesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 52. North wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

Sunny, with a high near 70. North wind around 10 mph.

Wednesday Night

Partly cloudy, with a low around 52.

Thursday

Sunny, with a high near 67.

Thursday Night

Mostly clear, with a low around 48.

Friday

Sunny, with a high near 69.

Friday Night

Mostly clear, with a low around 49.

Saturday

Sunny, with a high near 70.

Saturday Night

Mostly clear, with a low around 51.

Sunday

Mostly sunny, with a high near 71.

Search by zipcode or city/state for the latest conditions, forecasts, graphs, maps and more nearest to you.

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An Early Winter Sampler: December 2017 Recap and Annual Summary, including the Top 10 Events of 2017

January 3, 2018 - 4:09pm -- Dave Robinson

Snow-covered lagoon

The last month of 2017 was similar to many a month this past year. Whatever the season, weather conditions varied quite a bit from week to week. This was mainly due to an absence of atmospheric blocking in the middle and high latitudes with patterns that can lock a particular weather situation in place for multiple weeks. Thus in December we had a mild week, a snowy week, and a very cold week interspersed with transitional conditions. The one largely absent factor was precipitation, which resulted in the 10th driest December across NJ since records were established in 1895. The 1.57” of rain and melted snowfall was 2.28” below the 1981–2010 average. Snowfall averaged 8.7”, which is 3.9” above average and ranks as the 25th snowiest December on record. It was the snowiest since 2010. North Jersey averaged 8.7” (+2.1”), central areas 7.8” (+2.3”), and the south 9.1” (+4.9”). Temperatures seesawed from week to week, with the monthly statewide average of 33.6° being 1.6° below the 1981–2010 average. This ranked as the 61st coldest or 63rd mildest December on record.

Even a Quiet Month Can be Interesting and an Overall Mild and Dry Season: November and Fall 2017 Summary

December 5, 2017 - 3:06pm -- Dave Robinson

High Point snow, November 8

Even in a rather tranquil month, there are always interesting aspects of New Jersey’s weather and climate that can make for memorable situations. Such was the case during the 11th month of 2017. On the heels of a mild October and first week of November came one of the coldest early-season blasts on record on the 11th. Then the 19th saw some of the strongest winds of the year across the state. Overall, dry conditions by month’s end put the northern Highlands in the D0 (abnormally dry) category on the US Drought Monitor map, threatening to expand further into the state should dry conditions persist.

Rainfall averaged 1.68” across the state. This is 1.93” below the 1981–2010 mean and ranks as the 19th driest November since 1895. It was the driest since 1.30” fell in 2012 and well above the record low 0.54” in 1917. The statewide average temperature of 44.3° tied with 1938 as the 75th coolest (or 49th mildest) on record. The average was 0.9° below the 1981–2010 mean, but 0.8° above the 1895–2017 mean. This demonstrates how New Jersey has warmed in recent decades compared to earlier in the 20th century.

Delays Abound: October 2017 Summary

November 6, 2017 - 2:59pm -- Dave Robinson

October 29-30 2017 rainfall total map

The tenth month of 2017 was marked by the slow arrival of October-like conditions, including the first freezes of the season, the close-to-two week delay in the fall leaf season, and the absence of much precipitation until two late-month storms made up for lost time. Amidst all of this, October proved to be the second warmest across New Jersey since the onset of records in 1895. The 60.7° average was 6.2° above the 1981–2010 normal, trailing the 2007 record by 1.4°, but 0.9° above the now third mildest October in 1971. The month ended with a large portion of the state yet to be visited by the first freeze of the season.

Rainfall was rather limited throughout the first three weeks of the month, leading to an expansion of D0 “abnormally dry” conditions across the northern half of the state in the US Drought Monitor. It was anticipated that a portion of the north would move to a D1 “moderate drought” designation and the remainder of NJ to D0 come the October 31st weekly map (as mentioned in previous reports, the state climate office plays a significant role in making such designations). However, some welcome rain fell on the 24th, and on the 29th the largest statewide rain event since April 30, 2014, brought close to, and in some areas more than, a month’s worth of liquid in a major storm. This arrived on the 5th anniversary of Sandy and 6th anniversary of a historic early season snowstorm. When all was said and done, statewide October precipitation averaged 4.96”. This is 1.07” above average and ranks as the 25th wettest of the past 123 years.

Plenty Dry with Backwards Warmth: September 2017 Summary

October 5, 2017 - 4:40pm -- Dave Robinson

Waves photo

While remarkable deadly and destructive hurricanes pummeled portions of the Caribbean and southern states, September weather conditions in the Garden State were generally quiet. The most notable exceptions were the dangerous rip currents at the Jersey shore associated with the latter stages of Hurricanes Irma and Jose, which resulted in several drowning deaths and numerous water rescues. Minor to some moderate back-bay flooding and beach erosion accompanied the tumultuous surf, particularly between the 18th–21st. Otherwise, little more than some clouds and light rain reached NJ from these storms, while earlier some remnant energy and moisture from Hurricane Harvey brought one of the month’s few notable rain episodes. Dry conditions prevailed through much of the September, especially the second half. As a result, statewide precipitation averaged just 2.23”. This is 1.82” below the 1981–2010 average and was the 28th driest September since 1895.

While the first half of the month had an average temperature of about a degree below normal, September finished on a warm note. Some locations experienced three consecutive days with maximums of 90° or higher from the 23rd–25th. This backwards turn to warmth while the calendar suggested there should be a decline in temperature resulted in the month averaging 2.6° above the long-term mark. The 68.4° average made this the 10th warmest September on record. The last three Septembers and six since 2005 all fall into the top 10.

It’s Not Easy Staying Green: August and Summer 2017 Summaries

September 7, 2017 - 4:49pm -- Dave Robinson

Tomatoes

Despite July and August typically being the wettest months of the year in New Jersey, their warmth usually results in evaporation rates exceeding rainfall. Thus, when heat ensues and rain is light for a few weeks—not uncommon in a Jersey summer—lawns, gardens, and fields require considerable irrigation to avoid wilting or browning. Such was not the case this past August and earlier in the summer, as rain was ample and quite timely in most areas and hot temperatures did not prevail for extended periods. More will be reported for the summer as a whole later in this report. For August in particular, the average of 5.06” of rain that fell across NJ was 0.96” above the 1981–2010 average. It ranked as the 41st wettest August since 1895 and the wettest since record wet conditions in 2011.

The average statewide August temperature of 71.7° was 1.3° cooler than the 1981–2010 average (tied with 1926, 1952, and 1985). It was 5.1° cooler than last year’s record warm August. Since 1895, there have been 57 cooler Augusts and 62 that were warmer, which reflects the fact that this year was only 0.2° cooler than the 1895–2017 average. Yes, Augusts have generally warmed in recent decades.

Rainfall Corridors: July 2017 Summary

August 4, 2017 - 4:20pm -- Dave Robinson

Valley fog photo

July 2017 proved to be an active month of weather throughout the Garden State. Time and time again, storms traversed the state, often depositing the heaviest rainfall in 30–40 mile west-to-east “corridors,” while elsewhere totals were much lighter. Such is the nature of showery summer rainfall, although in one case, the swath of heavy rainfall was associated with an out-of-season coastal storm. When all was said and done, rainfall occurred frequently enough to leave most locations with average to well above average monthly totals. The statewide average July rainfall was 6.33”. This is 1.76” above the 1981–2010 average and ranks as the 19th wettest July of the past 123 years. Last year with 6.97” (ranking 13th) and 2004 with 7.51” (ranking 8th) were the most recent Julys to be wetter than this year. The statewide average temperature of 75.5° was 0.9° above average. This ranks as the 22nd warmest July on record. There have been nine warmer Julys since 2002, including last year at 77.1° (ranking 7th).

A Potpourri of Weather: June 2017 Summary and Mid-Year Recap

July 5, 2017 - 5:19pm -- Dave Robinson

Rainbow photo

Occasionally there are months that defy a “directional” theme when it comes to the weather and climate conditions experienced across the Garden State. In other words, conditions didn’t lean markedly toward, for example, wet or dry, cold or warm, or calm or stormy. June 2017 was one of those “potpourri” months. There were thunderstorms with drenching rain and even two tornadoes occurred, yet there were stretches of comfortable, dry weather. There was a three-day heat wave, with the temperature going as high as 97°, and some cool nights, with 35° being the coldest observed temperature in the state. When the precipitation was added up, the statewide average came out to 3.34”, which was 0.67” below the 1981–2010 mean of 4.01” and ranks as the 54th driest June of the past 123 years. The statewide average temperature of 70.5° was 0.7° above average. This ranks as the 27th mildest June on record.

Talk of Drought Evaporates: May and Spring 2017 Recaps

June 5, 2017 - 4:19pm -- Dave Robinson

Bayonne street flooding

It is always comforting to enter the water demand season, namely summer, with a bit of a hydrological cushion. Such is the case this year across NJ, thanks to ample rain and some late-season snow in recent months. This timely precipitation has eliminated drought concerns that stemmed from drier-than-normal intervals during 2016. As a result of the precipitation deficits, ground water, streamflow, and reservoirs all dropped to precarious levels, thus the issuance last fall of a drought warning by the NJ Department of Environmental Protection over northern NJ and a drought watch in some southern counties. Aside from two reservoirs in west central NJ remaining below average, at the moment all other hydrological signs are positive. However, no one should let their guard down and fail to appreciate the finite nature of our fresh water resources, and how quickly a period of abundance can lapse again into drought.

More will be noted regarding spring (March–May) conditions later in this report. First taking a look at May, New Jersey experienced its 9th wettest on record, with observations extending back to 1895. The statewide average rainfall of 6.62” was 2.63” above the 1981–2010 average and the wettest May since 1990. Frequent clouds and rain resulted in many chilly days, however, a mid-month heat wave was impactful enough such that the average statewide temperature of 59.8° was only 0.7° below the 1981–2010 average. It was the 61st coolest May of the past 123 years, with none cooler since 2008.

Record Warmth Returns: April 2017 Recap

May 5, 2017 - 2:19pm -- Dave Robinson

Cherry blossom photo

Following a March with the first substantially below-average monthly temperature anomaly in NJ in over a year, April brought a return to record warmth last seen in February. With a statewide average of 56.0°, the month was 5.1° above the 1981–2010 mean. This ranked as the warmest April since statewide records commenced in 1895. Five of the top 10 and nine of the top 20 mildest Aprils of the past 123 years have occurred since 2002. With the warmth of January, February, and April hardly balanced by the colder March, this year is off to the 4th warmest start on record. Only January–April averages in 2012, 1998, and 2002 were higher, and five of the eight mildest such intervals in the past 123 years have been since 2002. The 12-month period from May 2016 through April 2017 was the third warmest on record at 55.5°. It was only surpassed by May 2011–April 2012 (56.5°) and 2015–2016 (56.2°). Twelve of the 15 warmest such intervals of the past 123 years have occurred since 1999, the others being in 1931–1932 (#10), 1990–1991 (#11), and 1991–1992 (#14).

Long Winded: March 2017 Recap

April 4, 2017 - 4:15pm -- Dave Robinson

Damaged Magnolia

With the Northern Hemisphere atmosphere transitioning from winter to spring, March can be a month of frequently-changing weather with pronounced pressure gradients, thus punctuated by windy conditions. This past March was no exception, and in fact, a windier month would be difficult to find. Winds gusted to 50 mph or greater at one or more NJWxNet station on 11 days and between 40–49 mph on four other days. At most locations, the warmest daily average temperature of the month was, of all things, on March 1st, while the first 80° day of the year was on the 25th. In between those warm spells was the largest snowstorm of the year in central and northern locations and two weeks of some of the coldest weather of the winter. Finally, March went out like a lion, with a statewide soaking rainstorm on the 31st.

The statewide monthly average temperature of 38.9° was 1.9° below the 1981–2010 average. This ranks as the 61st coldest of the past 123 Marches. It was the first month with a below-average temperature since last May, which was only 0.3° below average and last April with a 0.1° negative anomaly. While not exceptionally cold, due to the record warm February average of 40.1°, this was only the third time on record when March was colder than the previous February. This occurred previously in 1984 and 1960. The 1960 occurrence was mainly due to March being the second coldest on record, while in 1984, February was 9th mildest and March 10th coolest. On average, March is 7.3° warmer than February. While the cold of March damaged blossoms of some prematurely-blooming trees and flowers, vegetation was not far enough along to result in significant problems.

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