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Brilliant fall foliage looking up towards High Point Monument (Sussex County) on October 22nd. Photo courtesy of Chris Stachelski.
Brilliant fall foliage looking up towards High Point Monument (Sussex County) on October 22nd. Photo courtesy of Chris Stachelski.

There are years when many say that New Jersey didn’t experience “classic” fall weather. This October is not one of those years, as the month included rain, wind, and coastal flooding from the persistent remnants of a hurricane, many locations received their first frost and freezing temperatures to end the growing season, and there were days with a cloud-free deep-blue sky. October certainly showed its true fall colors.

October temperatures averaged 54.1° across NJ. This is 1.3° below the 1991–2020 normal and was the coolest October since 2009. It was the 57th coolest (tied with 4 other years) of the 128 since 1895. The average high was 64.5° which is 1.3° below normal and is the 48th coolest (tied with 3 years). The average low of 43.6° is 1.3° below normal and ranks 65th coolest (tied with 4 years). Northern NJ averaged 52.1° (-1.2°, 59th coolest [tied with 2 years]), southern 55.1° (-1.4°, 56th coolest [tied with 3 years]), and coastal 56.6° (-1.0°, 70th coolest [tied with 1 year]).

Rainfall was abundant, averaging 6.45” statewide. This is 2.26” above normal and ranks 10th wettest on record. It was the wettest since the record October 2005. Ten different decades are found in the top 15 years. The north averaged 5.88” (+1.43”, 21st wettest), south 6.75” (+2.72”, 6th wettest), and coast 7.53” (+3.44”, 3rd wettest). Coastal Monmouth, Ocean, and Atlantic counties were wettest, coming in at two to three times normal totals. While coming in close to normal, the driest areas were in the north central, far southern, and southwest regions.

Latest Extremes

City, State Temp
Vineland, NJ 58
Hammonton, NJ 57
Mullica Twp., NJ 57
Sea Girt, NJ 56
Piney Hollow, NJ 56
City, State Temp
Walpack, NJ 43
High Point Monument, NJ 46
Hackettstown, NJ 46
High Point, NJ 47
Vernon Twp., NJ 47
most current information as of Nov 28 3:10 AM

Latest Conditions & Forecast

New Brunswick, NJ

Rutgers University Meteorology Program

53°F

Wind

6 mph from the W

Wind Gust

10 mph from the SW

Partly Cloudy
49 °F
Partly Sunny
54 °F
Mostly Clear
29 °F
Mostly Sunny
48 °F
Mostly Cloudy
36 °F
Showers Likely then Showers
60 °F
Showers and Breezy then Showers Likely
32 °F
Sunny then Sunny and Breezy
43 °F
Mostly Clear
26 °F
Sunny
45 °F
Partly Cloudy
31 °F
Partly Sunny
54 °F
Mostly Cloudy
37 °F
Mostly Sunny
53 °F

Overnight

Partly cloudy, with a low around 49. West wind around 15 mph.

Monday

Partly sunny, with a high near 54. Northwest wind 10 to 15 mph.

Monday Night

Mostly clear, with a low around 29. Northwest wind 5 to 10 mph becoming light after midnight.

Tuesday

Mostly sunny, with a high near 48. Calm wind becoming northeast around 5 mph.

Tuesday Night

Mostly cloudy, with a low around 36. Calm wind.

Wednesday

Showers, mainly after 8am. High near 60. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night

Showers, mainly before 2am. Low around 32. Breezy. Chance of precipitation is 100%.

Thursday

Sunny, with a high near 43. Breezy.

Thursday Night

Mostly clear, with a low around 26.

Friday

Sunny, with a high near 45.

Friday Night

Partly cloudy, with a low around 31.

Saturday

Partly sunny, with a high near 54.

Saturday Night

Mostly cloudy, with a low around 37.

Sunday

Mostly sunny, with a high near 53.

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Low-lying radiation fog crossing the road in Sparta on the morning of September 24th.

Following a hot and dry summer, the questions of the day in September were when the temperature would begin to cool and would more abundant rainfall arrive. Signs of a rainfall resurgence were mixed, with drought conditions diminishing in spots but worsening in others. The temperature answer came in almost a flash on the 22nd (the first day of astronomical fall!) when a powerful cold front sent the thermometer quickly downward with an early-fall-like pattern arriving and remaining through month’s end. September temperatures averaged 67.8° across NJ. This is 0.9° above the 1991–2020 normal...

The Great Swamp National Wildlife Refuge (Morris County) on August 24th. While August 22nd rain proved beneficial, the water level is normally higher. Photo taken by D. Robinson.

Much like this past July, August was a hotter and drier month than normal. Despite a June with rather close-to-normal numbers, the two most recent months brought the summer temperature and precipitation to top-10 levels for hot and dry conditions. More on summer ’22 later in this report, but first to discuss is a record hot and quite dry August. The August average temperature of 77.4° was 3.8° above the 1991–2020 normal, ranking as the hottest on record. Eight of the ten warmest Augusts since 1895 have occurred since 2001. The average maximum of 88.5° was 4.7° above normal, the hottest on...

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Summer Personified: July 2018 Recap

August 3, 2018 - 11:45pm -- Dave Robinson

Flash flood photo

July 2018 had a classic variety of summer weather. There was: 1) an ongoing heatwave to begin the month; 2) dry conditions for the most part in the first half of the month; 3) some warm, exceedingly humid conditions with widespread, at times heavy, showers the second half of the month (courtesy of the subtropics); and 4) some “top 10” sunny dry days following several cold front passages (thank you Canada).

The average statewide July temperature was 76.4°. This is 1.8° above the 1981–2010 average and ranks as the 13th warmest July in 124 years of records (2.6° above the full period of record average). Eleven of the 18 warmest Julys since 1895 have occurred in the past 20 years (since 1999). The average daily maximum temperature across the state was 87.2°, which is 2.2° above average and ranks as the 15th warmest on record. The 65.6° average minimum was 1.4° above the 1981–2010 average and comes in as the 17th warmest.

Statewide, August precipitation averaged 5.63”. This was 1.53” above the 1981–2010 average and ranked as the 32nd wettest since 1895. It was the wettest August since the record wettest month in 2011. As is often seen in the summer, the majority of the precipitation fell in scattered showers and thunderstorms. This resulted in a wide range of monthly totals around the state, with some serious flash flooding occurring in several locations when moisture ladened storms parked themselves over an area for multiple hours. Where storms missed time and time again, rainfall totals were below average. The northern NJ climate division (Hunterdon, Somerset, and Union counties northward) saw their 10th wettest August on record, with an average of 8.28” falling. This is 4.17” above average. Since 1990, only August 2011 was wetter in this division.

Rather Typical: June 2018 Recap

July 5, 2018 - 4:08pm -- Dave Robinson

Sandy Hook from plane

After an ample share of ups and downs throughout the past spring, the weather in June became rather typical for the start of summer. It was drier than average in the north and wetter than usual in the south, with the temperature close to the long-term mean. Fortunately, New Jersey entered the heart of summer with reservoirs full. However, with the onset of an apparent extended period of heat late in the month, it is certainly prudent to conserve water wisely.

The June average statewide temperature of 69.8° equaled the 1981–2010 mean, but is 1.0° above the 1895–present average. This tied with 1906 and 1967 as the 42nd mildest June on record. Precipitation averaged 3.43” across NJ, which is 0.58” below the 1981–2010 mean. This ranks as the 57th driest June, tied with 2011.

Warm and Wet May, and an Action Packed Spring: May 2018 Summary and Spring Recap

June 5, 2018 - 5:16pm -- Dave Robinson

Tree on house

After April timidly transitioned into milder weather, May was plenty bold in the thermal department, on multiple occasions behaving more like summer than late spring. Most NJ residents did not seem to mind the warmth; rather, from the second week onward, it was the frequent episodes of rain, often targeting weekends, which raised the level of crankiness among many! Statewide, this was the 5th warmest May since records commenced in 1895. The 65.0° average was 4.5° above the 1981–2010 mean. Five of the ten warmest Mays have occurred since 2004. In most locations, rain fell on at least half of the days of the month. The 5.96” average across NJ was 1.97” above the 1981–2010 mean. This ranks as the 13th wettest May on record, but 0.55” below last year’s average.

A Slow Green Up: April 2018 Summary

May 4, 2018 - 2:17pm -- Dave Robinson

Flash flooding photo

If you think it has been a long time since New Jersey experienced as chilly an April as this past one, you are correct. With snow accumulating in a storm on the 2nd to snow showers on the 30th, one was hard pressed to find many days when pleasant spring conditions could be found. Toss in two mid-month days when temperatures soared into the middle 80°s and another with strong thunderstorms delivering flash flood-producing rains, and weather-oriented heads kept spinning. However, overall, it was the persistent chill that captured the most attention, with the green up of lawns and foliage, accompanied by the blossoming of spring flowers, delayed from normal by upwards of two weeks.

Statewide, the April average temperature of 47.7° was 3.2° below the 1981–2010 mean (2.0° below the 1895–2017 mean). This ranks as the 28th coolest April since 1895 and the chilliest since 1982 (also 47.7°). The highest temperature observed in NJ was 87° at Stewartsville (Warren County) on the 14th and the coldest 16° at Walpack (Sussex) on the 11th.

April precipitation across NJ averaged 4.20”. This was 0.21” above the 1981–2010 mean (0.48” above the period-of-record mean). This was the 38th wettest April on record. Plentiful precipitation since February has eliminated drought concerns as we enter the summer water consumption season. Reservoirs and ground water levels are in good shape. However, this never means we should let our guard down and not use water in a responsible manner.

The Lion Roared All Month Long: March 2018 Summary

April 7, 2018 - 3:04pm -- Dave Robinson

While the first and last few days of the month came in disguised as a lamb, March 2018 was a roaring lion on many occasions. Three nor’easters pounded New Jersey, with a fourth grazing the state, turning more of its wrath on southeastern New England. In true nor’easter fashion, the storms brought minor to moderate coastal flooding, significant beach erosion, powerful winds, heavy rain, and record- to near-record-breaking snowfall. This led to two of the larger power outages since Sandy in 2012, numerous traffic accidents, significant tree damage, frequent school closings, and even someone being injured by lightning during a snowstorm.

Since When Did February Become March?: February 2018 Summary and Winter 2017/2018 Recap

March 6, 2018 - 5:11pm -- Dave Robinson

Snow photo

While the title of this report is guilty of some exaggeration, by just looking at the temperatures across New Jersey the past two Februaries you would not be far off the mark. The mildest February by far occurred in 2017 (40.4°), while this past February 2018 came in second mildest at 39.2°, just edging out 1998. This was 5.8° above the 1981–2010 mean and an impressive 8.3° above the 1895–present mean. The difference between mean periods further illustrates how Februaries in recent decades have been milder overall than earlier in the 20th century. So does the fact that February 2018 was milder than 62 of the past 123 Marches (February 2017 was milder than 70 Marches).

Not to be ignored due to February’s warmth, monthly precipitation certainly delivered in an impressive manner. The average statewide rainfall of 5.97” ranks as the third wettest on record. This is 3.17” above the 1981–2010 mean (2.87” above the period of record mean) and is the wettest February in well over 100 years.

Bitter Cold, a Blizzard, and a Thaw: January 2018 Summary

February 5, 2018 - 5:06pm -- Dave Robinson

Great Falls frozen

The first month of 2018 was replete with cold, warmth, snow, rain, and stretches of dry weather. First came an impressive episode of subfreezing conditions that began in late December and extended into the second week of January. This interval included a storm that brought over 10” of snow and blizzard conditions to coastal counties. Next was a heavy rain event accompanied by much warmer air, then later in the month, several scattered rain and snow episodes interspersed with dry conditions and some 60° warmth. Something for most everyone, I suppose you could say!

The statewide January mean temperature was 29.2°. This is 1.5° below the 1981–2010 mean and ranks as the 55th coldest January of the 124 since 1895. It was the coldest January since 2015. Precipitation (rain and melted snow) across NJ averaged 2.69”, which is 0.71” below average for the month. This was the 39th driest on record and the lowest total since 2010. January snowfall across the state averaged 8.3”, which was 1.1” above average. Northern counties averaged 7.9” (-1.4”), central ones 6.9” (-1.0”), and the south on top with 9.2” (+3.4”). Through January, this snow season has brought an average of 17.0” (+4.1”) to New Jersey, with the north at 16.6” (-0.8”), central 14.7” (+0.3”), and south 17.0” (+4.1”).

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.

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